High-temperature water heater is produced in the recovery of heat pump complementary energy
Technical field
The present invention is to produce high-temperature water heater on heat pump field, more particularly to heat pump complementary energy recovery.
Background technology
Heat pump is absorbed heat by working medium from environment, mainly there is water resource heat pump, air-cooled heat pump etc., by heat-carrying agent (example
Such as water) heat release realizes the heating of heat-carrying agent.Heat pump according to the temperature of the heat-carrying agent obtained after heating be divided into normal temperature heat pump and
High temperature heat pump, heat-carrying media temperature made from high temperature heat pump are higher than normal temperature heat pump.
In the market is common in the majority with normal temperature heat pump, as shown in figure 1, common two-stage compression normal temperature heat pump, including evaporation
Device 101, low-pressure stage compressor 102, high pressure stage compressor 103, condenser 104, No.1 expansion valve 105, the He of intercooler 106
No. two expansion valves 107.
Its internal heating circulation process:The working medium that flow is M1 first is from low pressure, low temperature liquid state 10 through evaporator
After 101 isobaric heat absorptions, the state 11 of uniform pressure is reached, after the air intake duct overheat before low-pressure stage compressor 102, reaches low
Press through the steam condition 1 of heat.Reach state 2 after the compression of low-pressure stage compressor 102.It is vented out from low-pressure stage compressor 102
The steam and flow of mouth are that M2 mixes from the steam after the flash distillation of intercooler 106, i.e. state 2, working medium and shape that flow is M1
It is M1+M2 that state 8, flow, which are that M2 carries out being mixed to form total flow, reaches steam condition 3.Steam condition 3 enters high pressure stage compressor
After 103 compressions, further adherence pressure and temperature reach state 4.State 4 is high-temperature high-pressure overheat steam state, through hiigh pressure stage
After the blast pipe of compressor 103, state 5 is reached, into condenser 104, after equipressure condenses, Temperature of Working reduces, and reaches phase
With the state 6 under pressure, saturated liquid is formed.The working medium come out from state 6, flow are M2 working medium through No.1 expansion valve 105
Decompression cooling, the gas-liquid saturated mode under formation and the uniform pressure of state 2, after intercooler 106 absorbs heat, flash distillation reaches
State 8.And the working medium that flow is M1 reaches subcooled liquid state 9 from the further isobaric heat release of state 6.Working medium is from state 9 through two
Number expansion valve 107 is cooled to state 10.
But after two-stage compression, also it is only capable of the hot water of 45~60 DEG C or so of generation.And high temperature heat pump is then to utilize to divide
The mode of level condensation is heated to the temperature higher than 60 DEG C using the latent heat and sensible heat of working medium release simultaneously.Wherein, water and working medium
It is that adverse current is run in condensation process, thus water is heated to maximum temperature in the condenser locations close to exhaust outlet of compressor.
In Eron Jacobson, Brown and Caldwell article Heat extraction from plant effluent:
" mention the heat pump maximum water temperature sold on the market in the U.S. in pumped up heat pumps " and reached 82 DEG C.Therefore
To reach high leaving water temperature, it is necessary to two level, even three stage compression, increase the power of compressor, sacrifice the efficiency of heat pump.
Therefore, existing heat pump techniques are on the premise of efficiency is ensured, it is difficult to water temperature is further lifted to more than 100 DEG C,
Even produce steam.
The content of the invention
It is a primary object of the present invention to overcome deficiency of the prior art, there is provided one kind can ensure existing heat pump
On the premise of efficiency, device of the temperature for more than 100 DEG C hot water is produced.In order to solve the above technical problems, the solution party of the present invention
Case is:
The recovery of heat pump complementary energy is provided and produces high-temperature water heater, including heat pump and zero energy consumption one unit, the heat
Pump includes evaporator, compressor, condenser and restricting element, and the working medium that the zero energy consumption one unit can be extracted in heat pump is dropping
The potential energy consumed during compression swelling, for utilizing the electric heater unit of outside to obtain high-temperature-hot-water;
The zero energy consumption all-in-one component is two kinds, respectively the energy consumption one unit of A types zero, the energy consumption one unit of Type B zero;
Zero energy consumption one unit can use the energy consumption one unit of A types zero or the energy consumption one unit of Type B zero to realize;
The energy consumption one unit of A types zero includes the warm condenser and power set being connected with each other, the energy consumption of A types zero one
Unit is arranged between the exhaust outlet of compressor of heat pump and condenser;The warm condenser can will after compressor compresses shape
Into high temperature and high pressure steam working medium, flow through warm condenser, sensible heat is released to the hot water produced needed for opposite side;The power dress
The potential energy acting that the working medium in warm condenser after sensible heat can be utilized to discharge is put, and then the electrical power generators outside drive drive
Outside electric heater unit is moved, realizes and the hot water produced needed for opposite side is further heated;The power set are using pneumatic
Motor or expanding machine;
The energy consumption one unit of Type B zero includes the pump that surges, and the pump that surges is arranged on the condensator outlet of heat pump;Surge pump
Can do work the potential energy that the high-pressure sub-cooled liquid working medium after condenser discharges reverse power generation, and then the electricity outside driving adds
Thermal, realize and the hot water produced needed for opposite side is further heated.
As a further improvement, the energy consumption one unit of A types zero also includes new compressor, and new compressor is arranged on heat
Between the exhaust outlet of compressor of pump and the warm condenser of the energy consumption one unit of A types zero;The new compression function is to through overcompression
The high temperature and high pressure steam working medium formed after machine compression, carry out compression again and form high steam working medium at higher temperature, be re-fed into high temperature
In condenser, and after generating that the potential energy that working medium in power set discharges can do work, for driving the new compressor operation,
Realize working medium increasing temperature and pressure in new compressor.
As a further improvement, the energy consumption one unit of Type B zero also includes new compressor, and new compressor is arranged on heat
Between the exhaust outlet of compressor and condenser of pump;The new compression function working medium in pump that will surge discharges potential energy acting and generated electricity
Afterwards, for driving the new compressor operation, working medium increasing temperature and pressure in new compressor is realized.
As a further improvement, the compressor of the heat pump is provided with two, the low-pressure stage compression being respectively sequentially connected
Machine and high pressure stage compressor;Be additionally provided with intercooler between the condenser and restricting element of heat pump, intercooler also with it is low
Arbitrarily downgrade and be connected between compressor, high pressure stage compressor, and be connected respectively with condenser and restricting element;The restricting element uses
Expansion valve, expansion valve are provided with two, respectively No.1 expansion valve and No. two expansion valves, and No.1 expansion valve is middle cold for being arranged on
But between device and evaporator, No. two expansion valves are used to be arranged between condenser and intercooler.
As a further improvement, the heat pump uses water resource heat pump or air-cooled heat pump.
Compared with prior art, the beneficial effects of the invention are as follows:
1st, the present invention can produce the high-temperature-hot-water that temperature is higher than 100 DEG C, improve the grade of hot water, make the high warm of acquisition
The application of water it is wider, be easy to be changed into steam to apply in the industry.
2nd, the present invention is on the basis of original heat pump, and with reference to zero energy consumption one unit, realizing is not increasing heat pump
On the basis of energy consumption, the grade of hot water is improved.
Brief description of the drawings
Fig. 1 is the heating circulation figure of existing heat pump.
Fig. 2 is the heating circulation figure of the specific embodiment of the invention 1.
Fig. 3 is the heating circulation figure of the specific embodiment of the invention 2.
Fig. 4 is the heating circulation figure of the specific embodiment of the invention 3.
Fig. 5 is the heating circulation figure of the specific embodiment of the invention 4.
Fig. 6 is the heating circulation figure of the specific embodiment of the invention 5.
Reference in figure is:101 evaporators;102 low-pressure stage compressors;103 high pressure stage compressors;104 condensers;
105 No.1 expansion valves;106 intercoolers;107 No. two expansion valves;108 new compressors;109 warm condensers;110 expansions
Machine;111 air motors;112 surge pump.
Embodiment
The present invention is described in further detail with embodiment below in conjunction with the accompanying drawings:
Unnecessary energy is not consumed on the basis of existing heat pump for current existing heat pump, the present invention as shown in Figure 1
Consumption, to improve the hot water grade produced, and can further produce steam, there is provided relatively more valuable thermal water resource.
5 kinds of following embodiments are respectively that zero energy consumption all-in-one in high-temperature water heater is produced in the recovery of heat pump complementary energy
The embodiment of group, does not change former heat pump from evaporator 101 to the state change of working medium between original compressor
Process, including the compression process of low-pressure stage compressor 102 and high pressure stage compressor 103.
As shown in Fig. 2 the embodiment 1 of zero energy consumption one unit, is on the basis of former heat pump, increases new compression
Machine 108, warm condenser 109 and expanding machine 110.Now, former heat pump heating circulation, the working medium that flow is M1'+M2' is from state 4
Through new compressor 108 second compression again, reach more high pressure steam condition 12 at higher temperature, it is isobaric to pass through warm condenser 109 afterwards
Condensation, is still superheated steam state after rejecting heat to the hot water that need to be heated;Done work afterwards into expanding machine 110, reduce pressure
Enter the isobaric condensation of condenser 104 after power and temperature to saturated liquid state 6', afterwards by former circulation, flow is M2' working medium
It is depressured and cools through No.1 expansion valve 105, the gas-liquid saturated mode under formation and the uniform pressure of state 2, is absorbed in intercooler 106
After heat, flash distillation reaches state 8.And the working medium that flow is M1' reaches subcooled liquid state from state 6' further isobaric heat releases
9'.Working medium is cooled to state 10' from state 9' through No. two expansion valves 107.
The potential energy that expanding machine 110 is discharged by extracting the working medium of superheated steam state, for driving new compressor 108, because
This whole zero energy consumption one unit can't increase the consumption of power newly.
As shown in figure 3, the embodiment 2 of zero energy consumption one unit, is on the basis of former heat pump, increases new compression
Machine 108, warm condenser 109 and air motor 111.Now, former heat pump heating circulation, the working medium that flow is M1 "+M2 " is from shape
State 4 reaches more high pressure steam condition 12 at higher temperature, passes through warm condenser 109 etc. afterwards through new compressor 108 second compression again
Pressure condensation, is still superheated steam state after rejecting heat to the hot water that need to be heated;Discharged afterwards into air motor 111
Potential energy, enter the isobaric condensation of condenser 104 to saturated liquid state 6 after reducing pressure and temperature ", afterwards by former circulation, flow
For M2 " working medium be depressured and cool through No.1 expansion valve 105, formed and the uniform pressure of state 2 under gas-liquid saturated mode, middle cold
But after device 106 absorbs heat, flash distillation reaches state 8.And flow is M1 " working medium from state 6 " further isobaric heat releases, reach
Subcooled liquid state 9 ".Working medium through No. two expansion valves 107 from state 9 " being cooled to state 10 ".
The potential energy that air motor 111 is discharged by extracting the working medium of superheated steam state, for driving small generator to send out
Electricity, caused electricity drives new compressor 108, therefore whole zero energy consumption one unit can't increase the consumption of power newly.
As shown in figure 4, the embodiment 3 of zero energy consumption one unit, otherwise varied with embodiment 2, in original heat
On the basis of pump, increase warm condenser 109 and air motor 111.Now, former heat pump heating circulation, flow are M1 " '+M2 " '
Working medium after the exhaust condition 4 of high pressure stage compressor reaches the inlet condition 16 of warm condenser 109, after equipressure condenses, with
Superheated steam state 17 discharges potential energy into air motor 111, enters the isobaric condensation of condenser 104 after reducing pressure and temperature
To saturated liquid state 6 " ', afterwards by former circulation, the working medium that flow be M2 " ' is depressured through No.1 expansion valve 105 to cool, formed with
Gas-liquid saturated mode under the uniform pressure of state 2, after intercooler 106 absorbs heat, flash distillation reaches state 8.And flow is
M1 " ' working medium from state 6 " ' further isobaric heat release, reaches subcooled liquid state 9 " '.Working medium is from state 9 " ' through No. two expansions
Valve 107 is cooled to state 10 " '.
The potential energy that air motor 111 is discharged by extracting the working medium of superheated steam state, for driving small generator to send out
Electricity, the hot water of caused electricity driving electric heater unit heating warm condenser 109 side to demand temperature, and whole zero energy consumption
Integral unit can't increase the consumption of power newly.
As shown in figure 5, the embodiment 4 of zero energy consumption one unit, on the basis of original heat pump, increases new compression
Machine 108 and the pump 112 that surges.Now, former heat pump heating circulation, the working medium that flow is M1 " "+M2 " " is from state 4 through new compressor
108 second compressions again, reach more high pressure superheated steam state 19 at higher temperature, afterwards into 104 isobaric heat release of condenser to being subcooled
Liquid condition 6 " ", enter the pump 112 that surges afterwards and discharge potential energy, after reducing temperature and pressure, be by former circulation, flow afterwards
M2 " " working medium is depressured through No.1 expansion valve 105 to cool, the gas-liquid saturated mode under formation and the uniform pressure of state 2, middle cold
But after device 106 absorbs heat, flash distillation reaches state 8.And the working medium that flow is M1 " " arrives from state 6 " " further isobaric heat release
Up to subcooled liquid state 9 " ".Working medium is cooled to state 10 " " from state 9 " " through No. two expansion valves 107.
Surge the potential energy that pump 112 is discharged by extracting the working medium of subcooled liquid state, is generated electricity by motor reversal, produced
Electricity drive new compressor 108, therefore whole zero energy consumption one unit can't increase the consumption of power newly.
As shown in fig. 6, the embodiment 5 of zero energy consumption one unit, on the basis of original heat pump, increases the pump that surges
112.Now, former heat pump heating circulation, after the isobaric condensation of condenser 104, in saturated liquid state 6, arrival is surged before pump 112
State be subcooled liquid state 22, discharge potential energy into the pump 112 that surges, after reducing temperature and pressure, afterwards by former circulation,
The working medium that flow is M2 is depressured through No.1 expansion valve 105 to cool, the gas-liquid saturated mode under formation and the uniform pressure of state 2, in
Between cooler 106 absorb heat after, flash distillation reach state 8.And flow be M1 working medium from the further isobaric heat release of state 6, arrive
Up to subcooled liquid state 9 " " '.Working medium is cooled to state 10 " " ' from state 9 " " ' through No. two expansion valves 107.
Surge the potential energy that pump 112 is discharged by extracting the working medium of subcooled liquid state, is generated electricity by motor reversal, produced
Electricity driving electric heater unit heating warm condenser 109 side hot water to demand temperature, and whole zero energy consumption one unit
The consumption of power can't be increased newly.
Finally it should be noted that listed above is only specific embodiment of the invention.It is clear that the invention is not restricted to
Above example, there can also be many variations.One of ordinary skill in the art can directly lead from present disclosure
All deformations for going out or associating, are considered as protection scope of the present invention.