CN102012128A

CN102012128A - Two-stage first type absorption heat pump with double effects as first stage

Info

Publication number: CN102012128A
Application number: CN201010544307XA
Authority: CN
Inventors: 李华玉
Original assignee: Individual
Current assignee: Individual
Priority date: 2009-11-11
Filing date: 2010-11-08
Publication date: 2011-04-13
Anticipated expiration: 2030-11-08
Also published as: CN102012128B; CN101706174A

Abstract

The invention provides a two-stage first type absorption heat pump with double effects as a first stage, belonging to the technical fields of waste heat utilization and heat pumps/refrigeration. A heat pump with three heat supply ends comprises a first generator, a second generator, a third generator, a first absorber, a second absorber, a condenser, an evaporator, a plurality of solution pumps, a plurality of throttle valves and a plurality of solution heat exchangers; a heat pump with four heat supply ends comprises the heat pump with three heat supply ends, a second condenser and a third throttle valve; the solution respectively circulates independently or circulates in series in the first stage and the second stage; the first generator provides driving steam for the second generator; the second generator provides cryogen steam for the second absorber or the second absorber and the second condenser; the third generator provides cryogen steam for the condenser; the first absorber or the first absorber and the second condenser provide first stage heat load; and the second absorber and the condenser provide second stage heat load. The heat pump has the advantages that the temperature of waste heat is promoted, a higher performance index is realized, and the performance index is high during varying load.

Description

With economic benefits and social benefits is the two-stage first class absorption heat pump of the first order

Technical field:

The invention belongs to low temperature exhaust heat utilization and absorption type heat pump.

Background technology:

Satisfy that to make the absorption heat pump/refrigeration unit that is adopted have high as far as possible performance index under the prerequisite of heated medium heat demand be the First Principles that follow.Because the variation of the parameter of waste heat medium (cooled medium), heated medium and driving thermal medium, corresponding requirements has the heat pump flowsheet between the different operating parameter region, and the heat pump/refrigerating unit that promptly needs different thermodynamic parameters and thermodynamic property satisfies concrete demand.

In absorption heat pump, economic benefits and social benefits first kind absorption heat pump is common unit, and it has the high advantage of performance index, but tangible deficiency is also arranged---can not have the interval and higher heating parameter of heat supply temperature of broad.When the initial temperature of heated medium is suitable for adopting the economic benefits and social benefits first kind absorption heat pump flow process of two heat supply ends and latter end is heated temperature when having exceeded its heat capacity, in order to obtain higher performance index and to satisfy the heat demand of using of heated medium, will carry out such consideration in the heat pump flowsheet arrangement: starting stage of heated medium is adopted one or two heat supply end of economic benefits and social benefits first kind absorption heat pump of the two ends heat supply that adapts, and the latter half of heated medium is adopted higher and the heat pump flowsheet that the heat supply temperature interval is adjacent of heat supply temperature.A heat supply end in the employing economic benefits and social benefits first kind absorption heat pump is used to provide the initial segment heat demand of heated medium, utilize its another heat supply end to provide the low temperature thermic load to the higher heat pump flowsheet of heat supply temperature, the occasion of heated medium temperature range broad can be satisfied, and higher relatively performance index can be obtained.The concrete technical scheme that is adopted is exactly that the absorber of economic benefits and social benefits first kind absorption heat pump is used for low-temperature zone heat demand to heated medium, the refrigerant vapour that its generator discharges is used for providing refrigerant vapour to the absorber of second heat pump flowsheet, the absorber of second heat pump flowsheet and condenser provide the elevated temperature heat demand to heated medium, obtain thermodynamic parameter on economic benefits and social benefits, have part economic benefits and social benefits thermodynamic property, be the first order and two-stage first class absorption heat pump with economic benefits and social benefits with three heat supply ends.

Similar therewith and distinguishing situation is, when the interval broad of the variations in temperature of heated medium and when changing, adopt the heat pump flowsheet of above-mentioned three heat supply ends to exist such problem again: when the heated medium temperature is hanged down, the heating demand of second heat pump flowsheet decreases, cause the refrigerant vapour in the whole heat pump flowsheet to reduce, the heat pump performance index is constant substantially.First heat pump flowsheet has the advantage of superior performance index when hanging down in order further to bring into play the heated medium temperature, increase by second heat supply end of second condenser as first heat pump flowsheet, obtaining with economic benefits and social benefits is the first order and the two-stage first class absorption heat pump with four heat supply ends.

Summary of the invention:

Main purpose of the present invention is that will to provide with economic benefits and social benefits be the two-stage first class absorption heat pump of the first order, and concrete summary of the invention subitem is described below:

1. be the two-stage first class absorption heat pump of the first order with economic benefits and social benefits, mainly form by first generator, second generator, the 3rd generator, first absorber, second absorber, condenser, evaporimeter, first solution pump, second solution pump, first throttle valve, second choke valve, first solution heat exchanger, second solution heat exchanger and the 3rd solution heat exchanger; First absorber has the weak solution pipeline to be communicated with second generator through second solution heat exchanger with the first generator connected sum through first solution heat exchanger more respectively behind first solution pump again, first generator also has the concentrated solution pipeline to be communicated with first absorber through first solution heat exchanger, second generator also has the concentrated solution pipeline to be communicated with first absorber through second solution heat exchanger, second absorber has the weak solution pipeline to be communicated with the 3rd generator through second solution pump and the 3rd solution heat exchanger, and the 3rd generator also has the concentrated solution pipeline to be communicated with second absorber through the 3rd solution heat exchanger; First generator also has the refrigerant vapour passage to be communicated with back second generator with second generator has the cryogen liquid pipeline to be communicated with evaporimeter through the first throttle valve again, second generator also has the refrigerant vapour passage to be communicated with second absorber, the 3rd generator also has the refrigerant vapour passage to be communicated with condenser, condenser also has the cryogen liquid pipeline to be communicated with evaporimeter through second choke valve, and evaporimeter also has the refrigerant vapour passage to be communicated with first absorber; Evaporimeter also have surplus heat medium pipeline and external communications, first generator and the 3rd generator also have the thermal medium pipeline of driving and external communications respectively, first absorber, second absorber and condenser also have heated medium pipeline and external communications respectively, and forming with the parallel double-effect is the first order and the solution independent loops two-stage first class absorption heat pump with three heat supply ends.

2. be the two-stage first class absorption heat pump of the first order with economic benefits and social benefits, mainly form by first generator, second generator, the 3rd generator, first absorber, second absorber, condenser, evaporimeter, first solution pump, second solution pump, first throttle valve, second choke valve, first solution heat exchanger, second solution heat exchanger, the 3rd solution heat exchanger and the 4th solution heat exchanger; First absorber has the weak solution pipeline to distinguish behind first solution pump again through first solution heat exchanger, the 3rd solution heat exchanger is communicated with second generator through second solution heat exchanger with the 3rd generator connected sum again, second generator also has the concentrated solution pipeline to be communicated with first absorber through second solution heat exchanger, the 3rd generator also has the concentrated solution pipeline to be communicated with second absorber through the 3rd solution heat exchanger, second absorber also has the weak solution pipeline to be communicated with first generator through second solution pump and the 4th solution heat exchanger, and first generator also has the concentrated solution pipeline to be communicated with first absorber through the 4th solution heat exchanger and first solution heat exchanger; First generator also has the refrigerant vapour passage to be communicated with back second generator with second generator has the cryogen liquid pipeline to be communicated with evaporimeter through the first throttle valve again, second generator also has the refrigerant vapour passage to be communicated with second absorber, the 3rd generator also has the refrigerant vapour passage to be communicated with condenser, condenser also has the cryogen liquid pipeline to be communicated with evaporimeter through second choke valve, and evaporimeter also has the refrigerant vapour passage to be communicated with first absorber; Evaporimeter also have surplus heat medium pipeline and external communications, first generator and the 3rd generator also have the thermal medium pipeline of driving and external communications respectively, first absorber, second absorber and condenser also have heated medium pipeline and external communications respectively, and forming with the parallel double-effect is the first order and the solution series circulation two-stage first class absorption heat pump with three heat supply ends.

3. be the two-stage first class absorption heat pump of the first order with economic benefits and social benefits, mainly form by first generator, second generator, the 3rd generator, first absorber, second absorber, condenser, evaporimeter, first solution pump, second solution pump, first throttle valve, second choke valve, first solution heat exchanger, second solution heat exchanger and the 3rd solution heat exchanger; First absorber has the weak solution pipeline to be communicated with first generator through first solution pump, first solution heat exchanger and second solution heat exchanger, first generator also has the concentrated solution pipeline to be communicated with second generator through second solution heat exchanger, second generator also has the concentrated solution pipeline to be communicated with first absorber through first solution heat exchanger, second absorber has the weak solution pipeline to be communicated with the 3rd generator through second solution pump and the 3rd solution heat exchanger, and the 3rd generator also has the concentrated solution pipeline to be communicated with second absorber through the 3rd solution heat exchanger; First generator also has the refrigerant vapour passage to be communicated with back second generator with second generator has the cryogen liquid pipeline to be communicated with evaporimeter through the first throttle valve again, second generator also has the refrigerant vapour passage to be communicated with second absorber, the 3rd generator also has the refrigerant vapour passage to be communicated with condenser, condenser also has the cryogen liquid pipeline to be communicated with evaporimeter through second choke valve, and evaporimeter also has the refrigerant vapour passage to be communicated with first absorber; Evaporimeter also have surplus heat medium pipeline and external communications, first generator and the 3rd generator also have the thermal medium pipeline of driving and external communications respectively, first absorber, second absorber and condenser also have heated medium pipeline and external communications respectively, and forming with the series connection economic benefits and social benefits is the first order and the solution independent loops two-stage first class absorption heat pump with three heat supply ends.

4. with economic benefits and social benefits the two-stage first class absorption heat pump of the first order, be the 3rd described be in the two-stage first class absorption heat pump of the first order with economic benefits and social benefits, first absorber there is the weak solution pipeline through first solution pump, first solution heat exchanger and second solution heat exchanger are communicated with first generator and are adjusted into first absorber and the weak solution pipeline are arranged through first solution pump, directly be communicated with first generator through second solution heat exchanger with the second generator connected sum respectively after first solution heat exchanger, forming with the connection in series-parallel economic benefits and social benefits is the first order and the solution independent loops two-stage first class absorption heat pump with three heat supply ends again.

5. be the two-stage first class absorption heat pump of the first order with economic benefits and social benefits, mainly form by first generator, second generator, the 3rd generator, first absorber, second absorber, condenser, evaporimeter, first solution pump, second solution pump, first throttle valve, second choke valve, first solution heat exchanger, second solution heat exchanger, the 3rd solution heat exchanger and the 4th solution heat exchanger; First absorber has the weak solution pipeline through first solution pump, first solution heat exchanger, second solution heat exchanger and the 3rd solution heat exchanger are communicated with the 3rd generator, the 3rd generator also has the concentrated solution pipeline to be communicated with second absorber through the 3rd solution heat exchanger, second absorber also has the weak solution pipeline to be communicated with first generator through second solution pump and the 4th solution heat exchanger, first generator also has the concentrated solution pipeline to be communicated with second generator through the 4th solution heat exchanger and second solution heat exchanger, and second generator also has the concentrated solution pipeline to be communicated with first absorber through first solution heat exchanger; First generator also has the refrigerant vapour passage to be communicated with back second generator with second generator has the cryogen liquid pipeline to be communicated with evaporimeter through the first throttle valve again, second generator also has the refrigerant vapour passage to be communicated with second absorber, the 3rd generator also has the refrigerant vapour passage to be communicated with condenser, condenser also has the cryogen liquid pipeline to be communicated with evaporimeter through second choke valve, and evaporimeter also has the refrigerant vapour passage to be communicated with first absorber; Evaporimeter also have surplus heat medium pipeline and external communications, first generator and the 3rd generator also have the thermal medium pipeline of driving and external communications respectively, first absorber, second absorber and condenser also have heated medium pipeline and external communications respectively, and forming with the series connection economic benefits and social benefits is the first order and the solution series circulation two-stage first class absorption heat pump with three heat supply ends.

6. with economic benefits and social benefits the two-stage first class absorption heat pump of the first order, be the 5th described be in the two-stage first class absorption heat pump of the first order with economic benefits and social benefits, first absorber there is the weak solution pipeline through first solution pump, first solution heat exchanger, second solution heat exchanger and the 3rd solution heat exchanger are communicated with the 3rd generator and have been adjusted into the weak solution pipeline through first solution pump, after first solution heat exchanger respectively directly with the second generator connected sum again through second solution heat exchanger, the 3rd solution heat exchanger is communicated with the 3rd generator, and forming with the connection in series-parallel economic benefits and social benefits is the first order and the solution series circulation two-stage first class absorption heat pump with three heat supply ends.

7. be the two-stage first class absorption heat pump of the first order with economic benefits and social benefits, mainly form by first generator, second generator, the 3rd generator, first absorber, second absorber, condenser, evaporimeter, first solution pump, second solution pump, the 3rd solution pump, first throttle valve, second choke valve, first solution heat exchanger, second solution heat exchanger and the 3rd solution heat exchanger; First absorber has the weak solution pipeline to be communicated with second generator through first solution pump and first solution heat exchanger, second generator also has the concentrated solution pipeline to be communicated with first generator through the 3rd solution pump and second solution heat exchanger, first generator also has the concentrated solution pipeline to be communicated with first absorber through second solution heat exchanger and first solution heat exchanger, second absorber has the weak solution pipeline to be communicated with the 3rd generator through second solution pump and the 3rd solution heat exchanger, and the 3rd generator also has the concentrated solution pipeline to be communicated with second absorber through the 3rd solution heat exchanger; First generator also has the refrigerant vapour passage to be communicated with back second generator with second generator has the cryogen liquid pipeline to be communicated with evaporimeter through the first throttle valve again, second generator also has the refrigerant vapour passage to be communicated with second absorber, the 3rd generator also has the refrigerant vapour passage to be communicated with condenser, condenser also has the cryogen liquid pipeline to be communicated with evaporimeter through second choke valve, and evaporimeter also has the refrigerant vapour passage to be communicated with first absorber; Evaporimeter also have surplus heat medium pipeline and external communications, first generator and the 3rd generator also have the thermal medium pipeline of driving and external communications respectively, first absorber, second absorber and condenser also have heated medium pipeline and external communications respectively, and forming with the series connection economic benefits and social benefits is the first order and the solution independent loops two-stage first class absorption heat pump with three heat supply ends.

8. with economic benefits and social benefits the two-stage first class absorption heat pump of the first order, be the 7th described be in the two-stage first class absorption heat pump of the first order with economic benefits and social benefits, have the weak solution pipeline to be communicated with second generator through first solution pump and first solution heat exchanger first absorber and be adjusted into first absorber and have the weak solution pipeline to be communicated with first generator and second generator respectively after first solution pump and first solution heat exchanger are communicated with, formation is the first order and the solution independent loops two-stage first class absorption heat pump with three heat supply ends with the connection in series-parallel economic benefits and social benefits.

9. be the two-stage first class absorption heat pump of the first order with economic benefits and social benefits, mainly form by first generator, second generator, the 3rd generator, first absorber, second absorber, condenser, evaporimeter, first solution pump, second solution pump, the 3rd solution pump, first throttle valve, second choke valve, first solution heat exchanger, second solution heat exchanger, the 3rd solution heat exchanger and the 4th solution heat exchanger; First absorber has the weak solution pipeline through first solution pump, first solution heat exchanger and the 3rd solution heat exchanger are communicated with the 3rd generator, the 3rd generator also has the concentrated solution pipeline to be communicated with second absorber through the 3rd solution heat exchanger, second absorber also has the weak solution pipeline to be communicated with second generator through second solution pump and second solution heat exchanger, second generator also has the concentrated solution pipeline to be communicated with first generator through the 3rd solution pump and the 4th solution heat exchanger, and first generator also has the concentrated solution pipeline through the 4th solution heat exchanger, second solution heat exchanger and first solution heat exchanger are communicated with first absorber; First generator also has the refrigerant vapour passage to be communicated with back second generator with second generator has the cryogen liquid pipeline to be communicated with evaporimeter through the first throttle valve again, second generator also has the refrigerant vapour passage to be communicated with second absorber, the 3rd generator also has the refrigerant vapour passage to be communicated with condenser, condenser also has the cryogen liquid pipeline to be communicated with evaporimeter through second choke valve, and evaporimeter also has the refrigerant vapour passage to be communicated with first absorber; Evaporimeter also have surplus heat medium pipeline and external communications, first generator and the 3rd generator also have the thermal medium pipeline of driving and external communications respectively, first absorber, second absorber and condenser also have heated medium pipeline and external communications respectively, and forming with the series connection economic benefits and social benefits is the first order and the solution series circulation two-stage first class absorption heat pump with three heat supply ends.

10. be the two-stage first class absorption heat pump of the first order with economic benefits and social benefits, mainly form by first generator, second generator, the 3rd generator, first absorber, second absorber, condenser, evaporimeter, first solution pump, second solution pump, first throttle valve, second choke valve, first solution heat exchanger, second solution heat exchanger and the 3rd solution heat exchanger; First absorber has the weak solution pipeline to be communicated with the 3rd generator through first solution pump, first solution heat exchanger and the 3rd solution heat exchanger, the 3rd generator also has the concentrated solution pipeline to be communicated with second absorber through the 3rd solution heat exchanger, second absorber also has the weak solution pipeline to be communicated with second generator, second generator also has the concentrated solution pipeline to be communicated with first generator through second solution pump and the 3rd solution heat exchanger, and first generator also has the concentrated solution pipeline to be communicated with first absorber through second solution heat exchanger and first solution heat exchanger; First generator also has the refrigerant vapour passage to be communicated with back second generator with second generator has the cryogen liquid pipeline to be communicated with evaporimeter through the first throttle valve again, second generator also has the refrigerant vapour passage to be communicated with second absorber, the 3rd generator also has the refrigerant vapour passage to be communicated with condenser, condenser also has the cryogen liquid pipeline to be communicated with evaporimeter through second choke valve, and evaporimeter also has the refrigerant vapour passage to be communicated with first absorber; Evaporimeter also have surplus heat medium pipeline and external communications, first generator and the 3rd generator also have the thermal medium pipeline of driving and external communications respectively, first absorber, second absorber and condenser also have heated medium pipeline and external communications respectively, and forming with the series connection economic benefits and social benefits is the first order and the solution series circulation two-stage first class absorption heat pump with three heat supply ends.

11. with economic benefits and social benefits is the two-stage first class absorption heat pump of the first order, be described at the 9-10 item be in the two-stage first class absorption heat pump of the first order with economic benefits and social benefits, first absorber there is the weak solution pipeline through first solution pump, first solution heat exchanger and the 3rd solution heat exchanger are communicated with the 3rd generator and are adjusted into first absorber and the weak solution pipeline are arranged through first solution pump, directly be communicated with the 3rd generator through the 3rd solution heat exchanger with the first generator connected sum respectively after first solution heat exchanger, forming with the series connection economic benefits and social benefits is the first order and the solution series circulation two-stage first class absorption heat pump with three heat supply ends again.

12. with economic benefits and social benefits is the two-stage first class absorption heat pump of the first order, be described at the 1-11 item be in the two-stage first class absorption heat pump of the first order with economic benefits and social benefits, increase by second condenser and the 3rd choke valve, second generator is set up the refrigerant vapour passage and is communicated with second condenser, having the cryogen liquid pipeline to be communicated with evaporimeter through the first throttle valve in second generator is adjusted into second generator and has the cryogen liquid pipeline to be communicated with second condenser through the first throttle valve, second condenser also has the cryogen liquid pipeline to be communicated with evaporimeter through the 3rd choke valve, second condenser also has heated medium pipeline and external communications, first absorber, second condenser, second absorber and first condenser provide thermic load to heated medium respectively, and forming with economic benefits and social benefits is the first order and the two-stage first class absorption heat pump with four heat supply ends.

13. with economic benefits and social benefits is the two-stage first class absorption heat pump of the first order, be described at the 1-11 item be in the two-stage first class absorption heat pump of the first order with economic benefits and social benefits, increase by second condenser and the 3rd choke valve, second generator is set up the refrigerant vapour passage and is communicated with second condenser, having the cryogen liquid pipeline to be communicated with evaporimeter through the first throttle valve in second generator is adjusted into second generator and has the cryogen liquid pipeline to be communicated with second condenser through the first throttle valve, having the cryogen liquid pipeline to be communicated with evaporimeter through second choke valve first condenser is adjusted into first condenser and has the cryogen liquid pipeline to be communicated with second condenser through second choke valve, second condenser also has the cryogen liquid pipeline to be communicated with evaporimeter through the 3rd choke valve, second condenser also has heated medium pipeline and external communications, first absorber, second condenser, second absorber and first condenser provide thermic load to heated medium respectively, and forming with economic benefits and social benefits is the first order and the two-stage first class absorption heat pump with four heat supply ends.

Description of drawings:

Fig. 1 be according to provided by the present invention, be the first order and solution independent loops two-stage first class absorption heat pump structure and schematic flow sheet with the parallel double-effect with three heat supply ends.

Fig. 2 be according to provided by the present invention, be the first order and solution series circulation two-stage first class absorption heat pump structure and schematic flow sheet with the parallel double-effect with three heat supply ends.

Fig. 3 be according to provided by the present invention, be the first order and solution independent loops two-stage first class absorption heat pump structure and schematic flow sheet with the parallel double-effect with four heat supply ends.

Fig. 4 is that foundation is provided by the present invention, economic benefits and social benefits are the first order and solution independent loops two-stage first class absorption heat pump structure and the schematic flow sheet with three heat supply ends to connect.

Fig. 5 be according to provided by the present invention, be the first order and solution independent loops two-stage first class absorption heat pump structure and schematic flow sheet with the connection in series-parallel economic benefits and social benefits with three heat supply ends.

Fig. 6 is that foundation is provided by the present invention, economic benefits and social benefits are the first order and solution series circulation two-stage first class absorption heat pump structure and the schematic flow sheet with three heat supply ends to connect.

Fig. 7 is that foundation is provided by the present invention, economic benefits and social benefits are the first order and solution series circulation two-stage first class absorption heat pump structure and the schematic flow sheet with four heat supply ends to connect.

Fig. 8 is that foundation is provided by the present invention, economic benefits and social benefits are the first order and solution independent loops two-stage first class absorption heat pump structure and the schematic flow sheet with four heat supply ends to connect.

Fig. 9 is that foundation is provided by the present invention, economic benefits and social benefits are the first order and solution independent loops two-stage first class absorption heat pump structure and the schematic flow sheet with three heat supply ends to connect.

Figure 10 is that foundation is provided by the present invention, economic benefits and social benefits are the first order and solution series circulation two-stage first class absorption heat pump structure and the schematic flow sheet with three heat supply ends to connect.

Figure 11 also is that foundation is provided by the present invention, economic benefits and social benefits are the first order and solution series circulation two-stage first class absorption heat pump structure and the schematic flow sheet with three heat supply ends to connect.

With comparison shown in Figure 10, the variation of Figure 11 is: second absorber 5 has the weak solution pipeline directly to be communicated with second generator 2, and first generator 1 has the concentrated solution pipeline to be communicated with first absorber 4 through second solution heat exchanger 13 and first solution heat exchanger 12.

Figure 12 be according to provided by the present invention, be the first order and solution series circulation two-stage first class absorption heat pump structure and schematic flow sheet with the connection in series-parallel economic benefits and social benefits with three heat supply ends.

Figure 13 is that foundation is provided by the present invention, economic benefits and social benefits are the first order and solution independent loops two-stage first class absorption heat pump structure and the schematic flow sheet with four heat supply ends to connect.

Among Fig. 9-13 with Fig. 4-7 in the difference of the involved economic benefits and social benefits of connecting be: first generator (high pressure generator) provides solution to second generator (low pressure generator) among Fig. 4-7, then is that second generator (low pressure generator) provides solution to first generator (high pressure generator) among Fig. 9-13.

Among the figure, 1-first generator, 2-second generator, 3-the 3rd generator, 4-first absorber, 5-second absorber, 6-condenser/first condenser, 7-evaporimeter, 8-first solution pump, 9-second solution pump, 10-first throttle valve, 11-second choke valve, 12-first solution heat exchanger, 13-second solution heat exchanger, 14-the 3rd solution heat exchanger, 15-the 4th solution heat exchanger, 16-cryogen liquid recirculation pump, 17-second condenser, 18-the 3rd choke valve, 19-the 3rd solution pump.

In order more clearly to embody summary of the invention, specialize following notion:

1. the economic benefits and social benefits of connecting---refer to that solution carries out series circulation and realizes double-effect process in the first order that waste heat supply temperature promotes.

2. parallel double-effect---refer to that solution carries out parallel connection circulation realization double-effect process in the first order that waste heat supply temperature promotes.

3. solution series circulation two-stage---refer to that solution circulates between the first order that waste heat supply temperature promotes and the second level.

4. solution independent loops two-stage---refer to that solution circulates respectively in the first order and the second level that waste heat supply temperature promotes.

The specific embodiment:

Describe the present invention in detail below in conjunction with accompanying drawing and example.

Shown in Figure 1 is that the first order and the solution independent loops two-stage first class absorption heat pump with three heat supply ends are achieved in that with the parallel double-effect

1. on the structure, it mainly is made up of first generator, second generator, the 3rd generator, first absorber, second absorber, condenser, evaporimeter, first solution pump, second solution pump, first throttle valve, second choke valve, first solution heat exchanger, second solution heat exchanger, the 3rd solution heat exchanger and cryogen liquid recirculation pump; First absorber 4 has the weak solution pipeline to be communicated with second generator 2 through second solution heat exchanger 13 with first generator, 1 connected sum through first solution heat exchanger 12 more respectively behind first solution pump 8 again, first generator 1 also has the concentrated solution pipeline to be communicated with first absorber 4 through first solution heat exchanger 12, second generator 2 also has the concentrated solution pipeline to be communicated with first absorber 4 through second solution heat exchanger 13, second absorber 5 has the weak solution pipeline to be communicated with the 3rd generator 3 through second solution pump 9 and the 3rd solution heat exchanger 14, and the 3rd generator 3 also has the concentrated solution pipeline to be communicated with second absorber 5 through the 3rd solution heat exchanger 14; First generator 1 also has the refrigerant vapour passage to be communicated with back second generator 2 with second generator 2 has the cryogen liquid pipeline to be communicated with evaporimeter 7 through first throttle valve 10 again, second generator 2 also has the refrigerant vapour passage to be communicated with second absorber 5, the 3rd generator 3 also has the refrigerant vapour passage to be communicated with condenser 6, condenser 6 also has the cryogen liquid pipeline to be communicated with evaporimeter 7 through second choke valve 11, and evaporimeter 7 also has the refrigerant vapour passage to be communicated with first absorber 4; Evaporimeter 7 also have surplus heat medium pipeline and external communications, first generator 1 and the 3rd generator 3 also have the thermal medium pipeline of driving and external communications respectively, and first absorber 4, second absorber 5 and condenser 6 also have heated medium pipeline and external communications respectively.

2. on the flow process, second generator 2 all enters evaporimeter 7 with condenser 6 through the cryogen liquid of second choke valve, 11 throttlings, absorbs waste heat and become refrigerant vapour and provide to first absorber 4 through the cryogen liquid of first throttle valve 10 throttlings, the refrigerant vapour that enters first absorber 4 absorbed from the concentrated solution of first generator 1 and second generator 2 respectively and heat release in heated medium; The weak solution of first absorber 4 is after 8 pressurizations of first solution pump, a part enters first generator 1 through first solution heat exchanger 12, discharge refrigerant vapour under the thermal medium heating and provide to drive thermal medium driving as it to second generator 2, another part enters second generator 2 through second solution heat exchanger 13, discharge refrigerant vapour under the thermal medium heating and provide driving to second absorber 5, the concentrated solution of first generator 1 enters first absorber 4 through the concentrated solution that first solution heat exchanger 12 enters first absorber, 4, the second generators 2 through second solution heat exchanger 13; The refrigerant vapour that enters second absorber 5 is absorbed also heat release in heated medium by the concentrated solution from the 3rd generator 3, the weak solution of second absorber 5 enters the 3rd generator 3, is driving and discharge refrigerant vapour under the thermal medium heating and provide to condenser 6 through second solution pump 9 and the 3rd solution heat exchanger 14, and the concentrated solution of the 3rd generator 3 enters second absorber 5 through the 3rd solution heat exchanger 14; Flowing through becomes cryogen liquid after the refrigerant vapour heat release of second generator 2, enters evaporimeter 7 again after 10 throttlings of first throttle valve, and the refrigerant vapour heat release that enters condenser 6 becomes cryogen liquid, enters evaporimeter 7 through 11 throttlings of second choke valve again in heated medium; The waste heat MEDIA FLOW is through evaporimeter 7 heat releases, first absorber 4 provides first order thermic load to heated medium, second absorber 5 and condenser 6 provide second level thermic load to heated medium respectively, and forming with the parallel double-effect is the first order and the solution independent loops two-stage first class absorption heat pump with three heat supply ends.

Shown in Figure 2 is that the first order and the solution series circulation two-stage first class absorption heat pump with three heat supply ends are achieved in that with the parallel double-effect

1. on the structure, it mainly is made up of first generator, second generator, the 3rd generator, first absorber, second absorber, condenser, evaporimeter, first solution pump, second solution pump, first throttle valve, second choke valve, first solution heat exchanger, second solution heat exchanger, the 3rd solution heat exchanger and the 4th solution heat exchanger; First absorber 4 has the weak solution pipeline to distinguish behind first solution pump 8 again through first solution heat exchanger 12, the 3rd solution heat exchanger 14 is communicated with second generator 2 through second solution heat exchanger 13 with the 3rd generator 3 connected sums again, second generator 2 also has the concentrated solution pipeline to be communicated with first absorber 4 through second solution heat exchanger 13, the 3rd generator 3 also has the concentrated solution pipeline to be communicated with second absorber 5 through the 3rd solution heat exchanger 14, second absorber 5 also has the weak solution pipeline to be communicated with first generator 1 through second solution pump 9 and the 4th solution heat exchanger 15, and first generator 1 also has the concentrated solution pipeline to be communicated with first absorber 4 through the 4th solution heat exchanger 15 and first solution heat exchanger 12; First generator 1 also has the refrigerant vapour passage to be communicated with back second generator 2 with second generator 2 has the cryogen liquid pipeline to be communicated with evaporimeter 7 through first throttle valve 10 again, second generator 2 also has the refrigerant vapour passage to be communicated with second absorber 5, the 3rd generator 3 also has the refrigerant vapour passage to be communicated with condenser 6, condenser 6 also has the cryogen liquid pipeline to be communicated with evaporimeter 7 through second choke valve 11, and evaporimeter 7 also has the refrigerant vapour passage to be communicated with first absorber 4; Evaporimeter 7 also have surplus heat medium pipeline and external communications, first generator 1 and the 3rd generator 3 also have the thermal medium pipeline of driving and external communications respectively, and first absorber 4, second absorber 5 and condenser 6 also have heated medium pipeline and external communications respectively.

2. on the flow process, second generator 2 all enters evaporimeter 7 with condenser 6 through the cryogen liquid of second choke valve, 11 throttlings, absorbs waste heat and become refrigerant vapour and provide to first absorber 4 through the cryogen liquid of first throttle valve 10 throttlings, the refrigerant vapour that enters first absorber 4 absorbed from the concentrated solution of first generator 1 and second generator 2 respectively and heat release in heated medium; The weak solution of first absorber 4 is after 8 pressurizations of first solution pump, a part enters second generator 2, is driving and to discharge refrigerant vapour under the thermal medium heating and provide to second absorber 5 through second solution heat exchanger 13, and another part enters the 3rd generator 3, driving and discharge refrigerant vapour under the thermal medium heating and provide to condenser 6 through first solution heat exchanger 12 and the 3rd solution heat exchanger 14; The concentrated solution of second generator 2 enters first absorber 4 through second solution heat exchanger 13, the concentrated solution of the 3rd generator 3 enters second absorber 5 through the 3rd solution heat exchanger 14, absorption from the refrigerant vapour of second generator 2 and heat release in heated medium, the weak solution of second absorber 5 enters first generator 1 through second solution pump 9 and the 4th solution heat exchanger 15, discharge refrigerant vapour under the thermal medium heating and provide to drive thermal medium as it to second generator 2 driving, the concentrated solution of first generator 1 enters first absorber 4 through the 4th solution heat exchanger 15 and first solution heat exchanger 12; The refrigerant vapour heat release of second generator 2 of flowing through becomes cryogen liquid, enters evaporimeter 7 through 10 throttlings of first throttle valve again, and the refrigerant vapour heat release that enters condenser 6 becomes cryogen liquid, enters evaporimeter 7 through 11 throttlings of second choke valve again in heated medium; The waste heat MEDIA FLOW is through evaporimeter 7 heat releases, first absorber 4 provides first order thermic load to heated medium, second absorber 5 and condenser 6 provide second level thermic load to heated medium respectively, and forming with the parallel double-effect is the first order and the solution series circulation two-stage first class absorption heat pump with three heat supply ends.

Shown in Figure 3 is that the first order and the solution independent loops two-stage first class absorption heat pump with four heat supply ends are achieved in that with the parallel double-effect

Shown in Figure 1 be in the first order and the solution independent loops two-stage first class absorption heat pump with the parallel double-effect with three heat supply ends, increase by second condenser and the 3rd choke valve, second generator 2 is set up the refrigerant vapour passage and is communicated with second condenser 17, having the cryogen liquid pipeline to be communicated with evaporimeter 7 through first throttle valve 10 in second generator 2 is adjusted into second generator 2 and has the cryogen liquid pipeline to be communicated with second condenser 17 through first throttle valve 10, having the cryogen liquid pipeline to be communicated with evaporimeter 7 through second choke valve 11 first condenser 6 is adjusted into first condenser 6 and has the cryogen liquid pipeline to be communicated with second condenser 17 through second choke valve 11, second condenser 17 also has the cryogen liquid pipeline to be communicated with evaporimeter 7 through the 3rd choke valve 18, second condenser 17 also has heated medium pipeline and external communications, first absorber 4, second condenser 17, second absorber 5 and first condenser 6 provide thermic load to heated medium respectively, and forming with economic benefits and social benefits is the first order and the solution independent loops two-stage first class absorption heat pump with four heat supply ends.

Shown in Figure 4 is that the first order and the solution independent loops two-stage first class absorption heat pump with three heat supply ends are achieved in that with the series connection economic benefits and social benefits

1. on the structure, it mainly is made up of first generator, second generator, the 3rd generator, first absorber, second absorber, condenser, evaporimeter, first solution pump, second solution pump, first throttle valve, second choke valve, first solution heat exchanger, second solution heat exchanger and the 3rd solution heat exchanger; First absorber 4 has the weak solution pipeline through first solution pump 8, first solution heat exchanger 12 and second solution heat exchanger 13 are communicated with first generator 1, first generator 1 also has the concentrated solution pipeline to be communicated with second generator 2 through second solution heat exchanger 13, second generator 2 also has the concentrated solution pipeline to be communicated with first absorber 4 through first solution heat exchanger 12, second absorber 5 has the weak solution pipeline to be communicated with the 3rd generator 3 through second solution pump 9 and the 3rd solution heat exchanger 14, and the 3rd generator 3 also has the concentrated solution pipeline to be communicated with second absorber 5 through the 3rd solution heat exchanger 14; First generator 1 also has the refrigerant vapour passage to be communicated with back second generator 2 with second generator 2 has the cryogen liquid pipeline to be communicated with evaporimeter 7 through first throttle valve 10 again, second generator 2 also has the refrigerant vapour passage to be communicated with second absorber 5, the 3rd generator 3 also has the refrigerant vapour passage to be communicated with condenser 6, condenser 6 also has the cryogen liquid pipeline to be communicated with evaporimeter 7 through second choke valve 11, and evaporimeter 7 also has the refrigerant vapour passage to be communicated with first absorber 4; Evaporimeter 7 also have surplus heat medium pipeline and external communications, first generator 1 and the 3rd generator 3 also have the thermal medium pipeline of driving and external communications respectively, and first absorber 4, second absorber 5 and condenser 6 also have heated medium pipeline and external communications respectively.

2. on the flow process, second generator 2 all enters evaporimeter 7 with condenser 6 through the cryogen liquid of second choke valve, 11 throttlings, absorbs waste heat and become refrigerant vapour and provide to first absorber 4 through the cryogen liquid of first throttle valve 10 throttlings, the refrigerant vapour that enters first absorber 4 absorbed by concentrated solution from second generator 2 and heat release in heated medium; The weak solution of first absorber 4 enters first generator 1 through first solution pump 8, first solution heat exchanger 12 and second solution heat exchanger 13, the heating of driving thermal medium enters the solution release refrigerant vapour of first generator 1 and provides to drive thermal medium as it to second generator 2, the concentrated solution of first generator 1 enters second generator 2, is driving and to discharge refrigerant vapour under the thermal medium heating and provide to second absorber 5 through second solution heat exchanger 13, and the concentrated solution of second generator 2 enters first absorber 4 through first solution heat exchanger 12; The refrigerant vapour that enters second absorber 5 is absorbed also heat release in heated medium by the concentrated solution from the 3rd generator 3, the weak solution of second absorber 5 enters the 3rd generator 3, is driving and discharge refrigerant vapour under the thermal medium heating and provide to condenser 6 through second solution pump 9 and the 3rd solution heat exchanger 14, and the concentrated solution of the 3rd generator 3 enters second absorber 5 through the 3rd solution heat exchanger 14; Flowing through becomes cryogen liquid after the refrigerant vapour heat release of second generator 2, enters evaporimeter 7 again after 10 throttlings of first throttle valve, and the refrigerant vapour heat release that enters condenser 6 becomes cryogen liquid, enters evaporimeter 7 through 11 throttlings of second choke valve again in heated medium; The waste heat MEDIA FLOW is through evaporimeter 7 heat releases, first absorber 4 provides first order thermic load to heated medium, second absorber 5 and condenser 6 provide second level thermic load to heated medium respectively, and forming with the series connection economic benefits and social benefits is the first order and the solution independent loops two-stage first class absorption heat pump with three heat supply ends.

Shown in Figure 5 is that the first order and the solution independent loops two-stage first class absorption heat pump with three heat supply ends are achieved in that with the connection in series-parallel economic benefits and social benefits

Shown in Figure 4 be in the first order and the solution independent loops two-stage first class absorption heat pump with the series connection economic benefits and social benefits with three heat supply ends, first absorber 4 there is the weak solution pipeline through first solution pump 8, first solution heat exchanger 12 and second solution heat exchanger 13 are communicated with first generator 1 and are adjusted into first absorber 4 and the weak solution pipeline are arranged through first solution pump 8, directly be communicated with first generator 1 through second solution heat exchanger 13 with second generator, 2 connected sums respectively after first solution heat exchanger 12, forming with the connection in series-parallel economic benefits and social benefits is the first order and the solution independent loops two-stage first class absorption heat pump with three heat supply ends again.

Shown in Figure 6 is that the first order and the solution series circulation two-stage first class absorption heat pump with three heat supply ends are achieved in that with the series connection economic benefits and social benefits

1. on the structure, it mainly is made up of first generator, second generator, the 3rd generator, first absorber, second absorber, condenser, evaporimeter, first solution pump, second solution pump, first throttle valve, second choke valve, first solution heat exchanger, second solution heat exchanger, the 3rd solution heat exchanger and the 4th solution heat exchanger; First absorber 4 has the weak solution pipeline through first solution pump 8, first solution heat exchanger 12, second solution heat exchanger 13 and the 3rd solution heat exchanger 14 are communicated with the 3rd generator 3, the 3rd generator 3 also has the concentrated solution pipeline to be communicated with second absorber 5 through the 3rd solution heat exchanger 14, second absorber 5 also has the weak solution pipeline to be communicated with first generator 1 through second solution pump 9 and the 4th solution heat exchanger 15, first generator 1 also has the concentrated solution pipeline to be communicated with second generator 2 through the 4th solution heat exchanger 15 and second solution heat exchanger 13, and second generator 2 also has the concentrated solution pipeline to be communicated with first absorber 4 through first solution heat exchanger 12; First generator 1 also has the refrigerant vapour passage to be communicated with back second generator 2 with second generator 2 has the cryogen liquid pipeline to be communicated with evaporimeter 7 through first throttle valve 10 again, second generator 2 also has the refrigerant vapour passage to be communicated with second absorber 5, the 3rd generator 3 also has the refrigerant vapour passage to be communicated with condenser 6, condenser 6 also has the cryogen liquid pipeline to be communicated with evaporimeter 7 through second choke valve 11, and evaporimeter 7 also has the refrigerant vapour passage to be communicated with first absorber 4; Evaporimeter 7 also have surplus heat medium pipeline and external communications, first generator 1 and the 3rd generator 3 also have the thermal medium pipeline of driving and external communications respectively, and first absorber 4, second absorber 5 and condenser 6 also have heated medium pipeline and external communications respectively.

2. on the flow process, second generator 2 all enters evaporimeter 7 with condenser 6 through the cryogen liquid of second choke valve, 11 throttlings, absorbs waste heat and become refrigerant vapour and provide to first absorber 4 through the cryogen liquid of first throttle valve 10 throttlings, the refrigerant vapour that enters first absorber 4 absorbed by concentrated solution from second generator 2 and heat release in heated medium; The weak solution of first absorber 4 is through first solution pump 8, first solution heat exchanger 12, second solution heat exchanger 13 and the 3rd solution heat exchanger 14 enter the 3rd generator 3, the heating of driving thermal medium enters the solution release refrigerant vapour of the 3rd generator 3 and provides to condenser 6, the concentrated solution of the 3rd generator 3 enters second absorber 5 through the 3rd solution heat exchanger 14, absorption from the refrigerant vapour of second generator 2 and heat release in heated medium, the weak solution of second absorber 5 enters first generator 1 through second solution pump 9 and the 4th solution heat exchanger 15, under the heating that drives thermal medium, discharge refrigerant vapour and provide to drive thermal medium as it to second generator 2, the concentrated solution of first generator 1 enters second generator 2 through the 4th solution heat exchanger 15 and second solution heat exchanger 13, discharge refrigerant vapour under the thermal medium heating and provide to second absorber 5 driving, the concentrated solution of second generator 2 enters first absorber 4 through first solution heat exchanger 12; The refrigerant vapour heat release of second generator 2 of flowing through becomes cryogen liquid, enters evaporimeter 7 through 10 throttlings of first throttle valve again, and the refrigerant vapour heat release that enters condenser 6 becomes cryogen liquid, enters evaporimeter 7 through 11 throttlings of second choke valve again in heated medium; The waste heat MEDIA FLOW is through evaporimeter 7 heat releases, first absorber 4 provides first order thermic load to heated medium, second absorber 5 and condenser 6 provide second level thermic load to heated medium respectively, and forming with the series connection economic benefits and social benefits is the first order and the solution series circulation two-stage first class absorption heat pump with three heat supply ends.

Shown in Figure 7 is that the first order and the solution series circulation two-stage first class absorption heat pump with four heat supply ends are achieved in that with the series connection economic benefits and social benefits

Shown in Figure 6 be in the first order and the solution series circulation two-stage first class absorption heat pump with the series connection economic benefits and social benefits with three heat supply ends, increase by second condenser and the 3rd choke valve, second generator 2 is set up the refrigerant vapour passage and is communicated with second condenser 17, having the cryogen liquid pipeline to be communicated with evaporimeter 7 through first throttle valve 10 in second generator 2 is adjusted into second generator 2 and has the cryogen liquid pipeline to be communicated with second condenser 17 through first throttle valve 10, second condenser 17 also has the cryogen liquid pipeline to be communicated with evaporimeter 7 through the 3rd choke valve 18, second condenser 17 also has heated medium pipeline and external communications, first absorber 4, second condenser 17, second absorber 5 and first condenser 6 provide thermic load to heated medium respectively, and forming with economic benefits and social benefits is the first order and the solution series circulation two-stage first class absorption heat pump with four heat supply ends.

Shown in Figure 8 is that the first order and the solution independent loops two-stage first class absorption heat pump with four heat supply ends are achieved in that with the series connection economic benefits and social benefits

Shown in Figure 4 be in the first order and the solution independent loops two-stage first class absorption heat pump with the series connection economic benefits and social benefits with three heat supply ends, increase by second condenser, the 3rd choke valve and the 4th solution heat exchanger 15, having the weak solution pipeline to be communicated with the 3rd generator 3 through second solution pump 9 and the 3rd solution heat exchanger 14 second absorber 5 is adjusted into second absorber 5 and the weak solution pipeline is arranged through the 4th solution heat exchanger 15, second solution pump 9 and the 3rd solution heat exchanger 14 are communicated with the 3rd generator 3, and the 4th solution heat exchanger 15 also has heated medium pipeline and external communications; Second generator 2 is set up the refrigerant vapour passage and is communicated with second condenser 17, having the cryogen liquid pipeline to be communicated with evaporimeter 7 through first throttle valve 10 in second generator 2 is adjusted into second generator 2 and has the cryogen liquid pipeline to be communicated with second condenser 17 through first throttle valve 10, having the cryogen liquid pipeline to be communicated with evaporimeter 7 through second choke valve 11 first condenser 6 is adjusted into first condenser 6 and has the cryogen liquid pipeline to be communicated with second condenser 17 through second choke valve 11, second condenser 17 also has the cryogen liquid pipeline to be communicated with evaporimeter 7 through the 3rd choke valve 18, second condenser 17 also has heated medium pipeline and external communications, first absorber 4, second condenser 17, second absorber 5 and first condenser 6 provide thermic load to heated medium respectively, and forming with economic benefits and social benefits is the first order and the solution independent loops two-stage first class absorption heat pump with four heat supply ends.

Among Fig. 8, the effect of the 4th solution heat exchanger 15 is to reduce in case of necessity the weak solution temperature that enters second solution pump 9.

Shown in Figure 9 is that the first order and the solution independent loops two-stage first class absorption heat pump with three heat supply ends are achieved in that with the series connection economic benefits and social benefits

1. on the structure, it mainly is made up of first generator, second generator, the 3rd generator, first absorber, second absorber, condenser, evaporimeter, first solution pump, second solution pump, the 3rd solution pump, first throttle valve, second choke valve, first solution heat exchanger, second solution heat exchanger and the 3rd solution heat exchanger; First absorber 4 has the weak solution pipeline to be communicated with second generator 2 through first solution pump 8 and first solution heat exchanger 12, second generator 2 also has the concentrated solution pipeline to be communicated with first generator 1 through the 3rd solution pump 19 and second solution heat exchanger 13, first generator 1 also has the concentrated solution pipeline to be communicated with first absorber 4 through second solution heat exchanger 13 and first solution heat exchanger 12, second absorber 5 has the weak solution pipeline to be communicated with the 3rd generator 3 through second solution pump 9 and the 3rd solution heat exchanger 14, and the 3rd generator 3 also has the concentrated solution pipeline to be communicated with second absorber 5 through the 3rd solution heat exchanger 14; First generator 1 also has the refrigerant vapour passage to be communicated with back second generator 2 with second generator 2 has the cryogen liquid pipeline to be communicated with evaporimeter 7 through first throttle valve 10 again, second generator 2 also has the refrigerant vapour passage to be communicated with second absorber 5, the 3rd generator 3 also has the refrigerant vapour passage to be communicated with condenser 6, condenser 6 also has the cryogen liquid pipeline to be communicated with evaporimeter 7 through second choke valve 11, and evaporimeter 7 also has the refrigerant vapour passage to be communicated with first absorber 4; Evaporimeter 7 also have surplus heat medium pipeline and external communications, first generator 1 and the 3rd generator 3 also have the thermal medium pipeline of driving and external communications respectively, and first absorber 4, second absorber 5 and condenser 6 also have heated medium pipeline and external communications respectively.

2. on the flow process, second generator 2 all enters evaporimeter 7 with condenser 6 through the cryogen liquid of second choke valve, 11 throttlings, absorbs waste heat and become refrigerant vapour and provide to first absorber 4 through the cryogen liquid of first throttle valve 10 throttlings, the refrigerant vapour that enters first absorber 4 absorbed by concentrated solution from first generator 1 and heat release in heated medium; The weak solution of first absorber 4 enters second generator 2 through first solution pump 8 and first solution heat exchanger 12, the refrigerant vapour heating of first generator 1 of flowing through enters solution in it and discharges refrigerant vapour and provide to second absorber 5, the concentrated solution of second generator 2 enters first generator 1 through the 3rd solution pump 19 and second solution heat exchanger 13, discharging refrigerant vapour under the heating of driving thermal medium provides to drive thermal medium as it to second generator 2, and the concentrated solution of first generator 1 enters first absorber 4 through second solution heat exchanger 13 and first solution heat exchanger 12; The refrigerant vapour that enters second absorber 5 is absorbed also heat release in heated medium by the concentrated solution from the 3rd generator 3, the weak solution of second absorber 5 enters the 3rd generator 3, is driving and discharge refrigerant vapour under the thermal medium heating and provide to condenser 6 through second solution pump 9 and the 3rd solution heat exchanger 14, and the concentrated solution of the 3rd generator 3 enters second absorber 5 through the 3rd solution heat exchanger 14; The refrigerant vapour heat release of second generator 2 of flowing through becomes cryogen liquid, enters evaporimeter 7 through 10 throttlings of first throttle valve again, and the refrigerant vapour heat release that enters condenser 6 becomes cryogen liquid, enters evaporimeter 7 through 11 throttlings of second choke valve again in heated medium; The waste heat MEDIA FLOW is through evaporimeter 7 heat releases, first absorber 4 provides first order thermic load to heated medium, second absorber 5 and condenser 6 provide second level thermic load to heated medium respectively, and forming with the series connection economic benefits and social benefits is the first order and the solution independent loops two-stage first class absorption heat pump with three heat supply ends.

Shown in Figure 10 is that the first order and the solution series circulation two-stage first class absorption heat pump with three heat supply ends are achieved in that with the series connection economic benefits and social benefits

1. on the structure, it mainly is made up of first generator, second generator, the 3rd generator, first absorber, second absorber, condenser, evaporimeter, first solution pump, second solution pump, the 3rd solution pump, first throttle valve, second choke valve, first solution heat exchanger, second solution heat exchanger, the 3rd solution heat exchanger and the 4th solution heat exchanger; First absorber 4 has the weak solution pipeline through first solution pump 8, first solution heat exchanger 12 and the 3rd solution heat exchanger 14 are communicated with the 3rd generator 3, the 3rd generator 3 also has the concentrated solution pipeline to be communicated with second absorber 5 through the 3rd solution heat exchanger 14, second absorber 5 also has the weak solution pipeline to be communicated with second generator 2 through second solution pump 9 and second solution heat exchanger 13, second generator 2 also has the concentrated solution pipeline to be communicated with first generator 1 through the 3rd solution pump 19 and the 4th solution heat exchanger 15, and first generator 1 also has the concentrated solution pipeline through the 4th solution heat exchanger 15, second solution heat exchanger 13 and first solution heat exchanger 12 are communicated with first absorber 4; First generator 1 also has the refrigerant vapour passage to be communicated with back second generator 2 with second generator 2 has the cryogen liquid pipeline to be communicated with evaporimeter 7 through first throttle valve 10 again, second generator 2 also has the refrigerant vapour passage to be communicated with second absorber 5, the 3rd generator 3 also has the refrigerant vapour passage to be communicated with condenser 6, condenser 6 also has the cryogen liquid pipeline to be communicated with evaporimeter 7 through second choke valve 11, and evaporimeter 7 also has the refrigerant vapour passage to be communicated with first absorber 4; Evaporimeter 7 also have surplus heat medium pipeline and external communications, first generator 1 and the 3rd generator 3 also have the thermal medium pipeline of driving and external communications respectively, first absorber 4, second absorber 5 and condenser 6 also have heated medium pipeline and external communications respectively, and forming with the series connection economic benefits and social benefits is the first order and the solution series circulation two-stage first class absorption heat pump with three heat supply ends.

2. on the flow process, second generator 2 all enters evaporimeter 7 with condenser 6 through the cryogen liquid of second choke valve, 11 throttlings, absorbs waste heat and become refrigerant vapour and provide to first absorber 4 through the cryogen liquid of first throttle valve 10 throttlings, the refrigerant vapour that enters first absorber 4 absorbed by concentrated solution from first generator 1 and heat release in heated medium; The weak solution of first absorber 4 is through first solution pump 8, first solution heat exchanger 12 and the 3rd solution heat exchanger 14 enter the 3rd generator 3, discharge refrigerant vapour under the thermal medium heating and provide driving to condenser 6, the concentrated solution of the 3rd generator 3 enters second absorber 5 through the 3rd solution heat exchanger 14, absorption from the refrigerant vapour of second generator 2 and heat release in heated medium, the weak solution of second absorber 5 enters second generator 2 through second solution pump 9 and second solution heat exchanger 13, discharging refrigerant vapour under the refrigerant vapour heating from first generator 1 provides to second absorber 5, the concentrated solution of second generator 2 enters first generator 1 through the 3rd solution pump 19 and the 4th solution heat exchanger 15, discharge refrigerant vapour under the thermal medium heating and provide to drive thermal medium as it to second generator 2 driving, the concentrated solution of first generator 1 is through the 4th solution heat exchanger 15, second solution heat exchanger 13 and first solution heat exchanger 12 enter first absorber 4; The refrigerant vapour heat release of second generator 2 of flowing through becomes cryogen liquid, enters evaporimeter 7 through 10 throttlings of first throttle valve again, and the refrigerant vapour heat release that enters condenser 6 becomes cryogen liquid, enters evaporimeter 7 through 11 throttlings of second choke valve again in heated medium; The waste heat MEDIA FLOW is through evaporimeter 7 heat releases, first absorber 4 provides first order thermic load to heated medium, second absorber 5 and condenser 6 provide second level thermic load to heated medium respectively, and forming with the series connection economic benefits and social benefits is the first order and the solution series circulation two-stage first class absorption heat pump with three heat supply ends.

Shown in Figure 11 is that the first order and the solution series circulation two-stage first class absorption heat pump with three heat supply ends are achieved in that with the series connection economic benefits and social benefits

14. 1. on the structure, it mainly is made up of first generator, second generator, the 3rd generator, first absorber, second absorber, condenser, evaporimeter, first solution pump, second solution pump, first throttle valve, second choke valve, first solution heat exchanger, second solution heat exchanger and the 3rd solution heat exchanger; First absorber 4 has the weak solution pipeline through first solution pump 8, first solution heat exchanger 12 and the 3rd solution heat exchanger 14 are communicated with the 3rd generator 3, the 3rd generator 3 also has the concentrated solution pipeline to be communicated with second absorber 5 through the 3rd solution heat exchanger 14, second absorber 5 also has the weak solution pipeline to be communicated with second generator 2, second generator 2 also has the concentrated solution pipeline to be communicated with first generator 1 through second solution pump 9 and the 3rd solution heat exchanger 13, first generator 1 also has the concentrated solution pipeline to be communicated with first absorber 4 through second solution heat exchanger 13 and first solution heat exchanger 12, first generator 1 also has the refrigerant vapour passage to be communicated with back second generator 2 with second generator 2 has the cryogen liquid pipeline to be communicated with evaporimeter 7 through first throttle valve 10 again, second generator 2 also has the refrigerant vapour passage to be communicated with second absorber 5, the 3rd generator 3 also has the refrigerant vapour passage to be communicated with condenser 6, condenser 6 also has the cryogen liquid pipeline to be communicated with evaporimeter 7 through second choke valve 11, evaporimeter 7 also has the refrigerant vapour passage to be communicated with first absorber 4, evaporimeter 7 also have surplus heat medium pipeline and external communications, first generator 1 and the 3rd generator 3 also have the thermal medium pipeline of driving and external communications, first absorber 4 respectively, second absorber 5 and condenser 6 also have heated medium pipeline and external communications respectively.

2. on the flow process, second generator 2 all enters evaporimeter 7 with condenser 6 through the cryogen liquid of second choke valve, 11 throttlings, absorbs waste heat and become refrigerant vapour and provide to first absorber 4 through the cryogen liquid of first throttle valve 10 throttlings, the refrigerant vapour that enters first absorber 4 absorbed by concentrated solution from first generator 1 and heat release in heated medium; The weak solution of first absorber 4 is through first solution pump 8, first solution heat exchanger 12 and the 3rd solution heat exchanger 14 enter the 3rd generator 3, discharge refrigerant vapour under the thermal medium heating and provide driving to condenser 6, the concentrated solution of the 3rd generator 3 enters second absorber 5 through the 3rd solution heat exchanger 14, absorption from the refrigerant vapour of second generator 2 and heat release in heated medium, the weak solution of second absorber 5 enters second generator 2, discharging refrigerant vapour under the refrigerant vapour heating from first generator 1 provides to second absorber 5, the concentrated solution of second generator 2 enters first generator 1 through second solution pump 9 and second solution heat exchanger 13, discharge refrigerant vapour under the thermal medium heating and provide to drive thermal medium as it to second generator 2 driving, the concentrated solution of first generator 1 enters first absorber 4 through second solution heat exchanger 13 and first solution heat exchanger 12; The refrigerant vapour heat release of second generator 2 of flowing through becomes cryogen liquid, enters evaporimeter 7 through 10 throttlings of first throttle valve again, and the refrigerant vapour heat release that enters condenser 6 becomes cryogen liquid, enters evaporimeter 7 through 11 throttlings of second choke valve again in heated medium; The waste heat MEDIA FLOW is through evaporimeter 7 heat releases, first absorber 4 provides first order thermic load to heated medium, second absorber 5 and condenser 6 provide second level thermic load to heated medium respectively, and forming with the series connection economic benefits and social benefits is the first order and the solution series circulation two-stage first class absorption heat pump with three heat supply ends.

Shown in Figure 12 is that the first order and the solution series circulation two-stage first class absorption heat pump with three heat supply ends are achieved in that with the connection in series-parallel economic benefits and social benefits

Shown in Figure 10 be in the first order and the solution series circulation two-stage first class absorption heat pump with the series connection economic benefits and social benefits with three heat supply ends, first absorber 4 there is the weak solution pipeline through first solution pump 8, first solution heat exchanger 12 and the 3rd solution heat exchanger 14 are communicated with the 3rd generator 3 and are adjusted into first absorber 4 and the weak solution pipeline are arranged through first solution pump 8, directly be communicated with the 3rd generator 3 through the 3rd solution heat exchanger 14 with first generator, 1 connected sum respectively after first solution heat exchanger 12, forming with the series connection economic benefits and social benefits is the first order and the solution series circulation two-stage first class absorption heat pump with three heat supply ends again.

Shown in Figure 13 is that the first order and the solution independent loops two-stage first class absorption heat pump with four heat supply ends are achieved in that with the series connection economic benefits and social benefits

Shown in Figure 9 be in the first order and the solution independent loops two-stage first class absorption heat pump with the series connection economic benefits and social benefits with three heat supply ends, increase by second condenser and the 3rd choke valve, second generator 2 is set up the refrigerant vapour passage and is communicated with second condenser 17, having the cryogen liquid pipeline to be communicated with evaporimeter 7 through first throttle valve 10 in second generator 2 is adjusted into second generator 2 and has the cryogen liquid pipeline to be communicated with second condenser 17 through first throttle valve 10, having the cryogen liquid pipeline to be communicated with evaporimeter 7 through second choke valve 11 first condenser 6 is adjusted into first condenser 6 and has the cryogen liquid pipeline to be communicated with second condenser 17 through second choke valve 11, second condenser 17 also has the cryogen liquid pipeline to be communicated with evaporimeter 7 through the 3rd choke valve 18, second condenser 17 also has heated medium pipeline and external communications, first absorber 4, second condenser 17, second absorber 5 and first condenser 6 provide thermic load to heated medium respectively, and forming with economic benefits and social benefits is the first order and the two-stage first class absorption heat pump with four heat supply ends.

Be used for the occasion that the heated medium temperature range is wide, excursion is bigger, than being the first order and two-stage first class absorption heat pump with economic benefits and social benefits, be that the first order and the two-stage first class absorption heat pump with four heat supply ends have higher combination property index with economic benefits and social benefits with three heat supply ends.Be analyzed as follows:

At first, when needs were heated to maximum temperature with heated medium by initial temperature, such source pump was according to the highest heat supply temperature and oepration at full load.

Secondly, when the heated medium finishing temperature reduces, reduce the driving thermic load of the 3rd generator 3 this moment, then make the refrigerant vapour amount that enters first condenser 6 reduce on the one hand, the thermic load that first condenser 6 offers heated medium reduces; The feasible on the other hand solution concentration reduction that enters second absorber 5 from the 3rd generator 3, and then cause second absorber, 5 interior solution to absorb the formed temperature reduction of refrigerant vapour, the thermic load that second absorber 5 offers heated medium reduces, and has also reduced simultaneously the absorption from the refrigerant vapour of second generator 2.

The 3rd, reduction along with the external heating demand in the second level, such source pump also decreases the afterheat utilization amount, then the thermic load of first absorber 4 reduces, the temperature that heated medium enters second condenser 17 reduces, the temperature difference between second condenser, 17 thermal mediums (mainly being the refrigerant vapour from second generator 2) and the cold medium (heated medium of second condenser 17 of flowing through) strengthens, the thermic load of second condenser 17 increases, and the refrigerant vapour that second generator 2 produces then can enter in second condenser 17 more.Though the refrigerant vapour amount that first absorber 4 absorbs is reducing, but the refrigerant vapour that absorbs is finally come out by second generator 2 and the 3rd generator 3 and satisfies second condenser, 17 required ratios to increase again, promptly this moment is in the whole heat supply flow process of source pump, two heat supply ends of first order flow process load increases and the ratio of occupying whole thermic loads increases simultaneously, this makes source pump performance index under the highest non-heat supply temperature increase, thereby makes source pump have higher combination property index.Second condenser 17 is taked rationally to reach optimal design, then can make such source pump have higher combination property index.

By contrast, be the first order with economic benefits and social benefits and having in the two-stage first class absorption heat pump of three heat supply ends, the refrigerant vapour amount that first absorber, 4 flash-pots 7 absorb must all come out to enter condenser 6 in the 3rd generator 3, therefore when the source pump heating demand reduces, the refrigerant vapour amount that first absorber 4 absorbs decreases, and the performance index of source pump only has small fluctuation.

The effect that the technology of the present invention can realize---the two-stage first class absorption heat pump take economic benefits and social benefits as the first order proposed by the invention has following effect and advantage:

1. obtained thermodynamic parameter on double-effect process, two-stage first class absorption heat pump with part economic benefits and social benefits thermodynamic property, enriched the type of first-class absorption type heat pump unit, the corresponding omission that reduces the first-class absorption type heat pump flow process.

2. as heat pump, can realize promoting as the first order in the lifting of waste heat supply temperature two-stage with double-effect process, thereby realization is to the deep exploitation of residual heat resources.

3. as refrigeration machine, can reduce the temperature requirement of driving heat source and realize driving the deep exploitation of heat, especially utilize low temperature to drive when heat is freezed and can improve largely the refrigeration benefit.

4. take economic benefits and social benefits as the first order and have the two-stage first class absorption heat pump of four heat supply ends, its thermodynamic effects is between complete double-effect process and the two-stage flow process take economic benefits and social benefits as the first order; In the occasion that is applied to load, the heat supply temperature excursion is bigger, can realize between heating parameter, heat supply interval and the performance index rationally corresponding, and can give full play to the high advantage of first order double-effect process performance index, thereby improve largely energy-saving benefit.

Claims

1. be the two-stage first class absorption heat pump of the first order with economic benefits and social benefits, mainly form by first generator, second generator, the 3rd generator, first absorber, second absorber, condenser, evaporimeter, first solution pump, second solution pump, first throttle valve, second choke valve, first solution heat exchanger, second solution heat exchanger and the 3rd solution heat exchanger; First absorber (4) has the weak solution pipeline to be communicated with second generator (2) through second solution heat exchanger (13) with first generator (1) connected sum through first solution heat exchanger (12) more respectively behind first solution pump (8) again, first generator (1) also has the concentrated solution pipeline to be communicated with first absorber (4) through first solution heat exchanger (12), second generator (2) also has the concentrated solution pipeline to be communicated with first absorber (4) through second solution heat exchanger (13), second absorber (5) has the weak solution pipeline to be communicated with the 3rd generator (3) through second solution pump (9) and the 3rd solution heat exchanger (14), and the 3rd generator (3) also has the concentrated solution pipeline to be communicated with second absorber (5) through the 3rd solution heat exchanger (14); First generator (1) also has the refrigerant vapour passage to be communicated with back second generator (2) with second generator (2) has the cryogen liquid pipeline to be communicated with evaporimeter (7) through first throttle valve (10) again, second generator (2) also has the refrigerant vapour passage to be communicated with second absorber (5), the 3rd generator (3) also has the refrigerant vapour passage to be communicated with condenser (6), condenser (6) also has the cryogen liquid pipeline to be communicated with evaporimeter (7) through second choke valve (11), and evaporimeter (7) also has the refrigerant vapour passage to be communicated with first absorber (4); Evaporimeter (7) also have surplus heat medium pipeline and external communications, first generator (1) and the 3rd generator (3) also have the thermal medium pipeline of driving and external communications respectively, first absorber (4), second absorber (5) and condenser (6) also have heated medium pipeline and external communications respectively, and forming with the parallel double-effect is the first order and the solution independent loops two-stage first class absorption heat pump with three heat supply ends.

2. be the two-stage first class absorption heat pump of the first order with economic benefits and social benefits, mainly form by first generator, second generator, the 3rd generator, first absorber, second absorber, condenser, evaporimeter, first solution pump, second solution pump, first throttle valve, second choke valve, first solution heat exchanger, second solution heat exchanger, the 3rd solution heat exchanger and the 4th solution heat exchanger; First absorber (4) has the weak solution pipeline to distinguish behind first solution pump (8) again through first solution heat exchanger (12), the 3rd solution heat exchanger (14) is communicated with second generator (2) through second solution heat exchanger (13) with the 3rd generator (3) connected sum again, second generator (2) also has the concentrated solution pipeline to be communicated with first absorber (4) through second solution heat exchanger (13), the 3rd generator (3) also has the concentrated solution pipeline to be communicated with second absorber (5) through the 3rd solution heat exchanger (14), second absorber (5) also has the weak solution pipeline to be communicated with first generator (1) through second solution pump (9) and the 4th solution heat exchanger (15), and first generator (1) also has the concentrated solution pipeline to be communicated with first absorber (4) through the 4th solution heat exchanger (15) and first solution heat exchanger (12); First generator (1) also has the refrigerant vapour passage to be communicated with back second generator (2) with second generator (2) has the cryogen liquid pipeline to be communicated with evaporimeter (7) through first throttle valve (10) again, second generator (2) also has the refrigerant vapour passage to be communicated with second absorber (5), the 3rd generator (3) also has the refrigerant vapour passage to be communicated with condenser (6), condenser (6) also has the cryogen liquid pipeline to be communicated with evaporimeter (7) through second choke valve (11), and evaporimeter (7) also has the refrigerant vapour passage to be communicated with first absorber (4); Evaporimeter (7) also have surplus heat medium pipeline and external communications, first generator (1) and the 3rd generator (3) also have the thermal medium pipeline of driving and external communications respectively, first absorber (4), second absorber (5) and condenser (6) also have heated medium pipeline and external communications respectively, and forming with the parallel double-effect is the first order and the solution series circulation two-stage first class absorption heat pump with three heat supply ends.

3. be the two-stage first class absorption heat pump of the first order with economic benefits and social benefits, mainly form by first generator, second generator, the 3rd generator, first absorber, second absorber, condenser, evaporimeter, first solution pump, second solution pump, first throttle valve, second choke valve, first solution heat exchanger, second solution heat exchanger and the 3rd solution heat exchanger; First absorber (4) has the weak solution pipeline through first solution pump (8), first solution heat exchanger (12) and second solution heat exchanger (13) are communicated with first generator (1), first generator (1) also has the concentrated solution pipeline to be communicated with second generator (2) through second solution heat exchanger (13), second generator (2) also has the concentrated solution pipeline to be communicated with first absorber (4) through first solution heat exchanger (12), second absorber (5) has the weak solution pipeline to be communicated with the 3rd generator (3) through second solution pump (9) and the 3rd solution heat exchanger (14), and the 3rd generator (3) also has the concentrated solution pipeline to be communicated with second absorber (5) through the 3rd solution heat exchanger (14); First generator (1) also has the refrigerant vapour passage to be communicated with back second generator (2) with second generator (2) has the cryogen liquid pipeline to be communicated with evaporimeter (7) through first throttle valve (10) again, second generator (2) also has the refrigerant vapour passage to be communicated with second absorber (5), the 3rd generator (3) also has the refrigerant vapour passage to be communicated with condenser (6), condenser (6) also has the cryogen liquid pipeline to be communicated with evaporimeter (7) through second choke valve (11), and evaporimeter (7) also has the refrigerant vapour passage to be communicated with first absorber (4); Evaporimeter (7) also have surplus heat medium pipeline and external communications, first generator (1) and the 3rd generator (3) also have the thermal medium pipeline of driving and external communications respectively, first absorber (4), second absorber (5) and condenser (6) also have heated medium pipeline and external communications respectively, and forming with the series connection economic benefits and social benefits is the first order and the solution independent loops two-stage first class absorption heat pump with three heat supply ends.

4. with economic benefits and social benefits the two-stage first class absorption heat pump of the first order, be described in claim 3 be in the two-stage first class absorption heat pump of the first order with economic benefits and social benefits, first absorber (4) there is the weak solution pipeline through first solution pump (8), first solution heat exchanger (12) and second solution heat exchanger (13) are communicated with first generator (1) and are adjusted into first absorber (4) and the weak solution pipeline are arranged through first solution pump (8), first solution heat exchanger (12) directly is communicated with first generator (1) through second solution heat exchanger (13) with second generator (2) connected sum respectively afterwards again, and forming with the connection in series-parallel economic benefits and social benefits is the first order and the solution independent loops two-stage first class absorption heat pump with three heat supply ends.

5. be the two-stage first class absorption heat pump of the first order with economic benefits and social benefits, mainly form by first generator, second generator, the 3rd generator, first absorber, second absorber, condenser, evaporimeter, first solution pump, second solution pump, first throttle valve, second choke valve, first solution heat exchanger, second solution heat exchanger, the 3rd solution heat exchanger and the 4th solution heat exchanger; First absorber (4) has the weak solution pipeline through first solution pump (8), first solution heat exchanger (12), second solution heat exchanger (13) and the 3rd solution heat exchanger (14) are communicated with the 3rd generator (3), the 3rd generator (3) also has the concentrated solution pipeline to be communicated with second absorber (5) through the 3rd solution heat exchanger (14), second absorber (5) also has the weak solution pipeline to be communicated with first generator (1) through second solution pump (9) and the 4th solution heat exchanger (15), first generator (1) also has the concentrated solution pipeline to be communicated with second generator (2) through the 4th solution heat exchanger (15) and second solution heat exchanger (13), and second generator (2) also has the concentrated solution pipeline to be communicated with first absorber (4) through first solution heat exchanger (12); First generator (1) also has the refrigerant vapour passage to be communicated with back second generator (2) with second generator (2) has the cryogen liquid pipeline to be communicated with evaporimeter (7) through first throttle valve (10) again, second generator (2) also has the refrigerant vapour passage to be communicated with second absorber (5), the 3rd generator (3) also has the refrigerant vapour passage to be communicated with condenser (6), condenser (6) also has the cryogen liquid pipeline to be communicated with evaporimeter (7) through second choke valve (11), and evaporimeter (7) also has the refrigerant vapour passage to be communicated with first absorber (4); Evaporimeter (7) also have surplus heat medium pipeline and external communications, first generator (1) and the 3rd generator (3) also have the thermal medium pipeline of driving and external communications respectively, first absorber (4), second absorber (5) and condenser (6) also have heated medium pipeline and external communications respectively, and forming with the series connection economic benefits and social benefits is the first order and the solution series circulation two-stage first class absorption heat pump with three heat supply ends.

6. with economic benefits and social benefits the two-stage first class absorption heat pump of the first order, be described in claim 5 be in the two-stage first class absorption heat pump of the first order with economic benefits and social benefits, first absorber (4) there is the weak solution pipeline through first solution pump (8), first solution heat exchanger (12), second solution heat exchanger (13) and the 3rd solution heat exchanger (14) are communicated with the 3rd generator (3) and have been adjusted into the weak solution pipeline through first solution pump (8), first solution heat exchanger (12) afterwards respectively directly with second generator (2) connected sum again through second solution heat exchanger (13), the 3rd solution heat exchanger (14) is communicated with the 3rd generator (3), and forming with the connection in series-parallel economic benefits and social benefits is the first order and the solution series circulation two-stage first class absorption heat pump with three heat supply ends.

7. be the two-stage first class absorption heat pump of the first order with economic benefits and social benefits, mainly form by first generator, second generator, the 3rd generator, first absorber, second absorber, condenser, evaporimeter, first solution pump, second solution pump, the 3rd solution pump, first throttle valve, second choke valve, first solution heat exchanger, second solution heat exchanger and the 3rd solution heat exchanger; First absorber (4) has the weak solution pipeline to be communicated with second generator (2) through first solution pump (8) and first solution heat exchanger (12), second generator (2) also has the concentrated solution pipeline to be communicated with first generator (1) through the 3rd solution pump (19) and second solution heat exchanger (13), first generator (1) also has the concentrated solution pipeline to be communicated with first absorber (4) through second solution heat exchanger (13) and first solution heat exchanger (12), second absorber (5) has the weak solution pipeline to be communicated with the 3rd generator (3) through second solution pump (9) and the 3rd solution heat exchanger (14), and the 3rd generator (3) also has the concentrated solution pipeline to be communicated with second absorber (5) through the 3rd solution heat exchanger (14); First generator (1) also has the refrigerant vapour passage to be communicated with back second generator (2) with second generator (2) has the cryogen liquid pipeline to be communicated with evaporimeter (7) through first throttle valve (10) again, second generator (2) also has the refrigerant vapour passage to be communicated with second absorber (5), the 3rd generator (3) also has the refrigerant vapour passage to be communicated with condenser (6), condenser (6) also has the cryogen liquid pipeline to be communicated with evaporimeter (7) through second choke valve (11), and evaporimeter (7) also has the refrigerant vapour passage to be communicated with first absorber (4); Evaporimeter (7) also have surplus heat medium pipeline and external communications, first generator (1) and the 3rd generator (3) also have the thermal medium pipeline of driving and external communications respectively, first absorber (4), second absorber (5) and condenser (6) also have heated medium pipeline and external communications respectively, and forming with the series connection economic benefits and social benefits is the first order and the solution independent loops two-stage first class absorption heat pump with three heat supply ends.

8. with economic benefits and social benefits the two-stage first class absorption heat pump of the first order, be described in claim 7 be in the two-stage first class absorption heat pump of the first order with economic benefits and social benefits, have the weak solution pipeline to be communicated with second generator (2) through first solution pump (8) and first solution heat exchanger (12) first absorber (4) and be adjusted into first absorber (4) and have the weak solution pipeline to be communicated with first generator (1) and second generator (2) respectively after first solution pump (8) and first solution heat exchanger (12) are communicated with, formation is the first order and the solution independent loops two-stage first class absorption heat pump with three heat supply ends with the connection in series-parallel economic benefits and social benefits.

9. be the two-stage first class absorption heat pump of the first order with economic benefits and social benefits, mainly form by first generator, second generator, the 3rd generator, first absorber, second absorber, condenser, evaporimeter, first solution pump, second solution pump, the 3rd solution pump, first throttle valve, second choke valve, first solution heat exchanger, second solution heat exchanger, the 3rd solution heat exchanger and the 4th solution heat exchanger; First absorber (4) has the weak solution pipeline through first solution pump (8), first solution heat exchanger (12) and the 3rd solution heat exchanger (14) are communicated with the 3rd generator (3), the 3rd generator (3) also has the concentrated solution pipeline to be communicated with second absorber (5) through the 3rd solution heat exchanger (14), second absorber (5) also has the weak solution pipeline to be communicated with second generator (2) through second solution pump (9) and second solution heat exchanger (13), second generator (2) also has the concentrated solution pipeline to be communicated with first generator (1) through the 3rd solution pump (19) and the 4th solution heat exchanger (15), and first generator (1) also has the concentrated solution pipeline through the 4th solution heat exchanger (15), second solution heat exchanger (13) and first solution heat exchanger (12) are communicated with first absorber (4); First generator (1) also has the refrigerant vapour passage to be communicated with back second generator (2) with second generator (2) has the cryogen liquid pipeline to be communicated with evaporimeter (7) through first throttle valve (10) again, second generator (2) also has the refrigerant vapour passage to be communicated with second absorber (5), the 3rd generator (3) also has the refrigerant vapour passage to be communicated with condenser (6), condenser (6) also has the cryogen liquid pipeline to be communicated with evaporimeter (7) through second choke valve (11), and evaporimeter (7) also has the refrigerant vapour passage to be communicated with first absorber (4); Evaporimeter (7) also have surplus heat medium pipeline and external communications, first generator (1) and the 3rd generator (3) also have the thermal medium pipeline of driving and external communications respectively, first absorber (4), second absorber (5) and condenser (6) also have heated medium pipeline and external communications respectively, and forming with the series connection economic benefits and social benefits is the first order and the solution series circulation two-stage first class absorption heat pump with three heat supply ends.

10. be the two-stage first class absorption heat pump of the first order with economic benefits and social benefits, mainly form by first generator, second generator, the 3rd generator, first absorber, second absorber, condenser, evaporimeter, first solution pump, second solution pump, first throttle valve, second choke valve, first solution heat exchanger, second solution heat exchanger and the 3rd solution heat exchanger; First absorber (4) has the weak solution pipeline through first solution pump (8), first solution heat exchanger (12) and the 3rd solution heat exchanger (14) are communicated with the 3rd generator (3), the 3rd generator (3) also has the concentrated solution pipeline to be communicated with second absorber (5) through the 3rd solution heat exchanger (14), second absorber (5) also has the weak solution pipeline to be communicated with second generator (2), second generator (2) also has the concentrated solution pipeline to be communicated with first generator (1) through second solution pump (9) and the 3rd solution heat exchanger (13), and first generator (1) also has the concentrated solution pipeline to be communicated with first absorber (4) through second solution heat exchanger (13) and first solution heat exchanger (12); First generator (1) also has the refrigerant vapour passage to be communicated with back second generator (2) with second generator (2) has the cryogen liquid pipeline to be communicated with evaporimeter (7) through first throttle valve (10) again, second generator (2) also has the refrigerant vapour passage to be communicated with second absorber (5), the 3rd generator (3) also has the refrigerant vapour passage to be communicated with condenser (6), condenser (6) also has the cryogen liquid pipeline to be communicated with evaporimeter (7) through second choke valve (11), and evaporimeter (7) also has the refrigerant vapour passage to be communicated with first absorber (4); Evaporimeter (7) also have surplus heat medium pipeline and external communications, first generator (1) and the 3rd generator (3) also have the thermal medium pipeline of driving and external communications respectively, first absorber (4), second absorber (5) and condenser (6) also have heated medium pipeline and external communications respectively, and forming with the series connection economic benefits and social benefits is the first order and the solution series circulation two-stage first class absorption heat pump with three heat supply ends.

11. with economic benefits and social benefits is the two-stage first class absorption heat pump of the first order, be described at claim 9-10 be in the two-stage first class absorption heat pump of the first order with economic benefits and social benefits, first absorber (4) there is the weak solution pipeline through first solution pump (8), first solution heat exchanger (12) and the 3rd solution heat exchanger (14) are communicated with the 3rd generator (3) and are adjusted into first absorber (4) and the weak solution pipeline are arranged through first solution pump (8), first solution heat exchanger (12) directly is communicated with the 3rd generator (3) through the 3rd solution heat exchanger (14) with first generator (1) connected sum respectively afterwards again, and forming with the series connection economic benefits and social benefits is the first order and the solution series circulation two-stage first class absorption heat pump with three heat supply ends.

12. with economic benefits and social benefits is the two-stage first class absorption heat pump of the first order, be described at claim 1-11 be in the two-stage first class absorption heat pump of the first order with economic benefits and social benefits, increase by second condenser and the 3rd choke valve, second generator (2) is set up the refrigerant vapour passage and is communicated with second condenser (17), having the cryogen liquid pipeline to be communicated with evaporimeter (7) through first throttle valve (10) in second generator (2) is adjusted into second generator (2) and has the cryogen liquid pipeline to be communicated with second condenser (17) through first throttle valve (10), second condenser (17) also has the cryogen liquid pipeline to be communicated with evaporimeter (7) through the 3rd choke valve (18), second condenser (17) also has heated medium pipeline and external communications, first absorber (4), second condenser (17), second absorber (5) and first condenser (6) provide thermic load to heated medium respectively, and forming with economic benefits and social benefits is the first order and the two-stage first class absorption heat pump with four heat supply ends.

13. with economic benefits and social benefits is the two-stage first class absorption heat pump of the first order, be described at claim 1-11 be in the two-stage first class absorption heat pump of the first order with economic benefits and social benefits, increase by second condenser and the 3rd choke valve, second generator (2) is set up the refrigerant vapour passage and is communicated with second condenser (17), having the cryogen liquid pipeline to be communicated with evaporimeter (7) through first throttle valve (10) in second generator (2) is adjusted into second generator (2) and has the cryogen liquid pipeline to be communicated with second condenser (17) through first throttle valve (10), having the cryogen liquid pipeline to be communicated with evaporimeter (7) through second choke valve (11) first condenser (6) is adjusted into first condenser (6) and has the cryogen liquid pipeline to be communicated with second condenser (17) through second choke valve (11), second condenser (17) also has the cryogen liquid pipeline to be communicated with evaporimeter (7) through the 3rd choke valve (18), second condenser (17) also has heated medium pipeline and external communications, first absorber (4), second condenser (17), second absorber (5) and first condenser (6) provide thermic load to heated medium respectively, and forming with economic benefits and social benefits is the first order and the two-stage first class absorption heat pump with four heat supply ends.