CN204522328U - Three grades with function of mechanical steam recompression continuous falling liquid film circulating and evaporating concentration systems - Google Patents
Three grades with function of mechanical steam recompression continuous falling liquid film circulating and evaporating concentration systems Download PDFInfo
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- CN204522328U CN204522328U CN201520161398.7U CN201520161398U CN204522328U CN 204522328 U CN204522328 U CN 204522328U CN 201520161398 U CN201520161398 U CN 201520161398U CN 204522328 U CN204522328 U CN 204522328U
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Abstract
The utility model provides a kind of three grades of continuous falling liquid film circulating and evaporating concentration systems with function of mechanical steam recompression, it comprises original fluid container, original fluid container connects feed pump successively, condensed water preheater, be connected with integral type falling liquid film circulating and evaporating separator after raw vapor preheater, form primary cycle pipeline and secondary cycle pipeline, and there is second steam circulation pipe, B-grade condensation water circulating pipe and secondary fixed gas circulating line, realize energy regenerating, the effect that vapor recycle uses, the utility model can meet the concentrated production requirement of continuous feed and discharge, stop and the circulation timei of material are shortened in the application of degree of depth inspissator greatly, the composition of the thermal sensitivity in solution of adequately protecting, adopt the waste heat of the pre-recuperation of heat condensed water of condensed water, compressor is adopted to collect indirect steam, indirect steam circulating-heating is made to be evaporated material, economize energy greatly.
Description
Technical field
The utility model relates to a kind of continuous concentration system, is specially a kind of energy-conservation continuous concentration device, the continuous falling liquid film circulating and evaporating concentration systems namely with function of mechanical steam recompression.
Background technology
Concentrated is an important step during Chinese medicine is produced.And traditional concentrator first material is loaded evaporimeter, then after making equipment run a period of time, when solution circulation is concentrated to finite concentration, then discharging pump discharge concentrate is opened, Deng concentrate emptying after again open inlet valve load stoste, repeat said process.This just makes production gap carry out cannot continuous seepage, has occurred the drawback that evaporation efficiency is low, production capacity is little, artificial intensity is large, cannot meet the demand of modern production.In addition, traditional evaporation concentration equipment needs the circulating and evaporating long period in equipment usually, is heated oversize, greatly destroys the heat-sensitive ingredients of feed liquid.And, the indirect steam that evaporimeter normally produces by traditional concentrator and condensed water are directly discharged or are discharged after condensing plant condensation, so not only waste the latent heat of indirect steam and the waste heat of condensed water, waste the energy, also increase condensing plant condensation indirect steam and condensed water, waste the energy, not only add investment but also not environmentally and economical.For this reason, the material that realizes that can be gentle continuously concentrates, again can the inspissator of Low Temperature Difference evaporation most important for improving the quality of products.
As the Chinese patent economic benefits and social benefits falling liquid film MVP vapo(u)rization system that publication number is CN104307195A, it adopts the mode of economic benefits and social benefits falling film evaporation, adopt twice concentrate discharge, use twice steam and condensed water, add the quantity of equipment greatly, waste the waste heat of indirect steam and condensed water simultaneously, cause energy waste, quantity-produced demand can not be realized simultaneously.
Utility model content
The purpose of this utility model is: provide a kind of continuous feed, discharging can economize energy and the continuous concentration device of rapid evaporation at a lower temperature.
The utility model provides a kind of three grades of continuous falling liquid film circulating and evaporating concentration systems with function of mechanical steam recompression, it comprises original fluid container, original fluid container connects feed pump successively, condensed water preheater, be connected with integral type falling liquid film circulating and evaporating separator after raw vapor preheater, described integral type falling liquid film circulating and evaporating separator comprises stage falling-film heater and primary separator, described stage falling-film heater is divided into evaporation tube I and evaporation tube II, the bottom part of described primary separator becomes separation chamber I and separation chamber II, described separation chamber I is communicated with upper end, separation chamber II, the bottom of described separation chamber I is communicated with the one-level charging aperture of integral type falling liquid film circulating and evaporating separator by primary cycle pump, form primary cycle pipeline, the bottom of described separation chamber II is communicated with the secondary charging aperture of integral type falling liquid film circulating and evaporating separator by secondary cycle pump, form secondary cycle pipeline,
Described secondary cycle pipeline is connected with the degree of depth concentrator feed mouth of degree of depth inspissator, described degree of depth inspissator comprises three grades of falling film heating devices and three grades of separators, the bottom of described three grades of separators is communicated with degree of depth concentrator feed mouth by three grades of circulating pumps, form three grades of circulating lines, described three grades of circulating lines are provided with concentrate discharge nozzle;
System is provided with compressor, second steam circulating line is provided with between itself and integral type falling liquid film circulating and evaporating separator and degree of depth inspissator, second steam circulating line is as follows: be provided with one-level secondary between the top of described primary separator and degree of depth inspissator and go out jet chimney, the top of described three grades of separators is provided with secondary secondary and goes out jet chimney, secondary secondary goes out jet chimney end and is connected with compressor, be provided with one-level secondary between the one-level shell side of described compressor and integral type falling liquid film circulating and evaporating separator and enter jet chimney, be provided with secondary secondary between the secondary shell side of described compressor and degree of depth inspissator and enter jet chimney,
System is also provided with condensate water pot, itself and be provided with B-grade condensation water circulating pipe between integral type falling liquid film circulating and evaporating separator and degree of depth inspissator, B-grade condensation water circulating pipe is as follows: be provided with one-level condensed water discharge pipe road between described condensate water pot and integral type falling liquid film circulating and evaporating separator, B-grade condensation water discharge pipe road is provided with between described condensate water pot and degree of depth inspissator, the bottom of described condensate water pot is connected with condensed water preheater by condensate pump, and described condensed water preheater is connected with condensed water discharge pipe road;
System is also provided with fixed gas cooler, knockout drum and vavuum pump, and be provided with secondary fixed gas circulating line between integral type falling liquid film circulating and evaporating separator and degree of depth inspissator, secondary fixed gas circulating line is as follows: described fixed gas cooler one end is connected with knockout drum, the lower end of described knockout drum is connected with condensate water pot by secondary fixed gas equalizing main, described knockout drum upper end is connected with vavuum pump, be provided with one-level between the other end of described fixed gas cooler and integral type falling liquid film circulating and evaporating separator to find time pipeline, secondary evacuation tube is provided with between the other end of described fixed gas cooler and degree of depth inspissator, one-level fixed gas equalizing main is provided with between condensate water pot and integral type falling liquid film circulating and evaporating separator, secondary fixed gas equalizing main is provided with between condensate water pot and degree of depth inspissator.
The longitudinal central axis line of described primary separator is provided with baffle plate, and primary separator is divided into separation chamber I and separation chamber II by described baffle plate.
The vacuum degree control of described separation chamber I, separation chamber II and three grades of separators is 20-85kpa.
The top of described evaporation tube I and evaporation tube II is respectively equipped with independently liquid distributor.
Concentrate discharge nozzle is provided with discharging flow meter.
Described condensed water preheater and raw vapor preheater are plate type heat exchanger, tubular heat exchanger or spiral tube exchanger.
Be provided with between described secondary cycle pipeline and primary cycle pipeline and turn material control valve.
Described compressor is high-speed centrifugal compressor, Roots Compressor, low-speed centrifugal vapour compression machine or screw vapour compression machine.
The compression temperature rise of described compressor is 6-23 DEG C.
The outlet conduit place of described three grades of circulating pumps is provided with densitometer, and described density counts tuning-fork type or pressure type.
The beneficial effect of utility model is: the utility model can meet the concentrated production requirement of continuous feed and discharge; stop and the circulation timei of material are shortened in the application of degree of depth inspissator greatly; the composition of the thermal sensitivity in solution of adequately protecting; adopt the waste heat of the pre-recuperation of heat condensed water of condensed water; compressor is adopted to collect indirect steam; indirect steam circulating-heating is made to be evaporated material, economize energy greatly.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the enlarged diagram at A place in Fig. 1.
Fig. 3 is the enlarged diagram at B place in Fig. 1.
Fig. 4 is the enlarged diagram at C place in Fig. 1.
Detailed description of the invention
Below in conjunction with accompanying drawing, the utility model embodiment is described further:
As Fig. 1, Fig. 2, shown in Fig. 3 and Fig. 4, the utility model provides a kind of three grades of continuous falling liquid film circulating and evaporating concentration systems with function of mechanical steam recompression, it comprises original fluid container 30, original fluid container 30 connects feed pump 31 successively, condensed water preheater 27, be connected with integral type falling liquid film circulating and evaporating separator 2 after raw vapor preheater 34, described integral type falling liquid film circulating and evaporating separator 2 comprises stage falling-film heater 4 and primary separator 5, described stage falling-film heater 4 is divided into evaporation tube I and evaporation tube II, the bottom part of described primary separator 5 becomes separation chamber I 6 and separation chamber II 7, described separation chamber I 6 is communicated with upper end, separation chamber II 7, the bottom of described separation chamber I 6 is communicated with by the one-level charging aperture 61 of primary cycle pump 13 with integral type falling liquid film circulating and evaporating separator 2, form primary cycle pipeline, the bottom of described separation chamber II 7 is communicated with by the secondary charging aperture 62 of secondary cycle pump 16 with integral type falling liquid film circulating and evaporating separator 2, form secondary cycle pipeline,
Start evaporation in first evaporator and evaporation tube I, the material through primary concentration is overflowed to bottom secondary evaporimeter by the dividing plate bottom separation chamber I, then is evaporated further by secondary evaporimeter and evaporation tube II.After double flash evaporation, the concentration of material can improve 7-8 doubly.
Described secondary cycle pipeline is connected with the degree of depth concentrator feed mouth 63 of degree of depth inspissator 3, described degree of depth inspissator 3 comprises three grades of falling film heating devices 9 and three grades of separators 10, the bottom of described three grades of separators 10 is communicated with degree of depth concentrator feed mouth 63 by three grades of circulating pumps 20, form three grades of circulating lines, the discharging opening that described three grades of circulating lines are provided with concentrate discharge nozzle 22, three grades of circulating pumps 20 is connected with the final storage tank of concentrate by concentrate discharge nozzle 22.
Material after secondary concentration is again by starting to three grades of falling film heating devices 9 turns material to the valve on degree of depth concentrator feed pipe 18, in degree of depth inspissator, the concentration of material can reach setting value, again by after densitometer 58 detection assay, discharged by concentrate discharge nozzle 22 continuous print.
System is provided with compressor 1, second steam circulating line is provided with between itself and integral type falling liquid film circulating and evaporating separator 2 and degree of depth inspissator 3, second steam circulating line is as follows: be provided with one-level secondary between the top of described primary separator 5 and degree of depth inspissator and go out jet chimney 52, the top of described three grades of separators 10 is provided with secondary secondary and goes out jet chimney 53, secondary secondary goes out jet chimney 53 end and is connected with compressor 1, be provided with one-level secondary between the one-level shell side 8 of described compressor 1 and integral type falling liquid film circulating and evaporating separator 2 and enter jet chimney 54, be provided with secondary secondary between described compressor 1 and the secondary shell side 11 of degree of depth inspissator and enter jet chimney 55,
The cyclic process of the utility model indirect steam is achieved in that described indirect steam is the top of the top of the primary separator 5 coming from integrated evaporator and three grades of separators 10 of degree of depth inspissator, this two parts indirect steam (temperature is at 50-90 DEG C) pools together and enters into compressor 1, compress rear temperature and pressure by compressor 1 to be raised, temperature can promote 6-22 DEG C, can carry out selecting the different temperature difference according to different materials, then 58-112 DEG C can be reached by the indirect steam temperature compressed, then this part steam is utilized again and goes the shell side of integral type falling liquid film circulating and evaporating separator 2 and degree of depth falling film condenser 3 to continue to heat the material be concentrated respectively.Steam condensate (SC) is pooled to condensate water pot 25, then is got by condensate pump 26.
System is also provided with condensate water pot 25, itself and be provided with B-grade condensation water circulating pipe between integral type falling liquid film circulating and evaporating separator 2 and degree of depth inspissator 3, B-grade condensation water circulating pipe is as follows: be provided with one-level condensed water discharge pipe road 49 between described condensate water pot and integral type falling liquid film circulating and evaporating separator 2, B-grade condensation water discharge pipe road 51 is provided with between described condensate water pot and degree of depth inspissator 3, the bottom of described condensate water pot 25 is connected with condensed water preheater by condensate pump 26, and described condensed water preheater is connected with condensed water discharge pipe road 28;
Evaporative condenser coolant-temperature gage after using is higher, and the hot water got by condensate pump 26 is entered into condensed water preheater 27 and goes to heat the material be concentrated, and has reclaimed the partial heat energy of system.In the process maintaining system vacuum, the some vapor that vavuum pump is taken out of also may be used for heated material, reclaims heat energy wherein.
System is also provided with fixed gas cooler 38, knockout drum 39 and vavuum pump 42, and be provided with secondary fixed gas circulating line between integral type falling liquid film circulating and evaporating separator 2 and degree of depth inspissator 3, secondary fixed gas circulating line is as follows: described fixed gas cooler 38 one end is connected with knockout drum 39, the lower end of described knockout drum 39 is connected with condensate water pot 25 by secondary fixed gas equalizing main 47, described knockout drum 39 upper end is connected with vavuum pump 42, be provided with one-level between the other end of described fixed gas cooler 38 and integral type falling liquid film circulating and evaporating separator 2 to find time pipeline 36, secondary evacuation tube 37 is provided with between the other end of described fixed gas cooler 38 and degree of depth inspissator 3, one-level fixed gas equalizing main 46 is provided with between condensate water pot 25 and integral type falling liquid film circulating and evaporating separator 2, secondary fixed gas equalizing main 47 is provided with between condensate water pot 25 and degree of depth inspissator 3.
In order to effectively improve thickening efficiency, the longitudinal central axis line of described primary separator 5 is provided with baffle plate 64, and primary separator 5 is divided into separation chamber I 6 and separation chamber II 7 by described baffle plate 64.
The top of described evaporation tube I and evaporation tube II is respectively equipped with independently liquid distributor.
Concentrate discharge nozzle 22 is provided with discharging flow meter 23.
Described condensed water preheater 27 and raw vapor preheater 34 are plate type heat exchanger, tubular heat exchanger or spiral tube exchanger.
Be provided with between described secondary cycle pipeline and primary cycle pipeline and turn material control valve 24.
Described compressor is high-speed centrifugal compressor, Roots Compressor, low-speed centrifugal vapour compression machine or screw vapour compression machine.
The compression temperature rise of described compressor is 6-23 DEG C.
The outlet conduit place of described three grades of circulating pumps 20 is provided with densitometer, and described density counts tuning-fork type or pressure type.
Stoste after original fluid container 30 cushions uses feed pump 31 to feed in integral type falling liquid film circulating and evaporating separator 2 after pan feeding flowmeter 33 measures.Feed liquid is in pumping procedure, first through condensed water preheater 27 heat exchange, after heat exchange, temperature is close to the evaporating temperature (50-90 DEG C) of setting, discharge system through condensed water discharge pipe road 28 after making the condensed water with higher temperature lower the temperature simultaneously, then feed liquid enters preheating further in raw vapor preheater 34, the feed liquid being preheating to boiling point evenly flow in evaporation tube continually by the liquid distributor of feed pipe 35 by stage falling-film heater 4 upper end, flow down along evaporation tube inwall in membranaceous, carry out heat exchange with the heating steam in pipe outer wall one-level shell side 8 thus be subject to thermal evaporation.Due to the effect of vacuum, indirect steam lower portion rapid flow, accelerates the speed that liquid film declines.Gas-liquid enters the primary separator 5 bottom integral type falling liquid film circulating and evaporating separator 2, then enters primary cycle pipeline and circulates concentrated under the effect of primary cycle pump 13.Due to difference in specific gravity, gas-liquid in centrifugal action next stage separator 5 is thoroughly separated, isolated indirect steam goes out jet chimney 52 through one-level secondary and delivers to compressor 1, delivers to the solution in shell side releasing Topography evaporation tube after compressor 1 compression intensification, boosting.Concentrate is under the effect of secondary cycle pump 16 in a part of penetration depth inspissator 3 of degree of depth concentrator feed pipe 18, and another part continues to participate in circulation in integral type falling liquid film circulating and evaporating separator 2.The feed liquid of penetration depth inspissator 3 carries out circulation by thermal evaporation through three grades of circulation pipes, I 19, three grades of circulation pipes II 21, gas-liquid separation in three grades of separators 10 in three grades of falling film heating devices 9 under the effect of three grades of circulating pumps 20.Isolated indirect steam goes out jet chimney 53 through secondary secondary, one-level secondary goes out jet chimney 52 and enters compressor 1, compresses after intensification, boosting deliver to shell side releasing Topography feed liquid through compressor 1.Feed concentration in the densitometer 58 on-line monitoring degree of depth inspissator 3 of three grades of circulation pipes II 21.A concentrate part is expelled to the final storage tank of concentrate through concentrate discharge nozzle 22 under the effect of three grades of circulating pumps 20, and another part continues to participate in circulation.Concentrate discharge nozzle 22 is provided with discharging flow meter 23 can on-line monitoring concentrate discharge rate.
One-level condensed water discharge pipe road 49 bottom the condensed water heater via that condensation is got off and B-grade condensation water discharge pipe road 51 are discharged in condensate water pot 25.Condensed water in condensate water pot 25 enters in condensed water preheater 27 and preheats stoste under condensate pump 26 acts on.In order to maintain intrasystem pressure balance, one-level shell side 8, secondary shell side 11 are respectively equipped with the one-level fixed gas equalizing main 46 and secondary fixed gas equalizing main 47 that are connected with condensate water pot 25.In order to make feed liquid evaporate at low temperatures, the vacuum of system maintains and the discharge of fixed gas is completed by the vavuum pump 42 of finding time on pipeline 43, the pipeline 43 of finding time before vavuum pump 42 is provided with ball valve 40 and fixed gas control valve 41 and is used for the vacuum of control system.Regulated the vacuum of separation chamber I 6, separation chamber II 7 and three grades of separators 10 by fixed gas control valve, make vacuum degree control at 20-85kpa.
Original fluid container 30 is respectively equipped with cleaning fluid inlet pipe and stoste inlet pipe, described cleaning fluid inlet pipe is provided with manual ball valve 29, for opened manually cleaning fluid inlet pipe, so that the cleaning operation after using, then the bottom of separation chamber I 6 and separation chamber II 7 is its circulating line is respectively equipped with slag-drip opening I 44 and slag-drip opening II 45, deposits slag for what discharge integral type falling liquid film circulating and evaporating separator.
One-level condensed water discharge pipe road 49 and B-grade condensation water discharge pipe road 51 being respectively equipped with the first visor 48 and the second visor 50, whether the condensed water in pipeline being discharged for observing.
Equipment provided by the utility model can meet the concentrated production requirement of continuous feed and discharge, the basis of integral type falling liquid film circulating and evaporating separator 2 adds degree of depth inspissator 63, more highly enriched requirement can be reached within a short period of time, shorten heating material concentration time, can compared with the heat-sensitive substance in the retained product of limits.Material is concentrated to and finally becomes more and more sticky, and the application of degree of depth inspissator decreases the difficulty of operating maintenance maintenance, easy to clean.Adopt water circulation vavuum pump extract incoagulable gas out and maintain intrasystem vacuum, ensure solution explosive evaporation under negative pressure, temperature is low, and composition is survivable.Condensed water preheater is adopted to carry out preheating to material, reclaim the waste heat of condensed water, compressor is adopted to collect indirect steam, reuse the latent heat of indirect steam, saved the energy, eliminated condensing plant, decrease the consumption of cooling water, reduce the cost of enterprise, add enterprise income, can also environmental pollution be reduced simultaneously.The application of Computer Control Technology achieves the in good time detection and control to critical process parameters in important production process, achieve serialization and the automation of Chinese medicine production, improve production efficiency, reduce production cost, to the important in inhibiting that improves the quality of products.
Embodiment should not be considered as restriction of the present utility model, but any improvement done based on spirit of the present utility model, all should within protection domain of the present utility model.
Claims (10)
1. three grades of continuous falling liquid film circulating and evaporating concentration systems with function of mechanical steam recompression, it is characterized in that: it comprises original fluid container (30), original fluid container (30) connects feed pump (31) successively, condensed water preheater (27), raw vapor preheater (34) is connected with integral type falling liquid film circulating and evaporating separator (2) afterwards, described integral type falling liquid film circulating and evaporating separator (2) comprises stage falling-film heater (4) and primary separator (5), described stage falling-film heater (4) is divided into evaporation tube I and evaporation tube II, the bottom part of described primary separator (5) becomes separation chamber I (6) and separation chamber II (7), described separation chamber I (6) is communicated with upper end, separation chamber II (7), the bottom of described separation chamber I (6) is communicated with the one-level charging aperture (61) of integral type falling liquid film circulating and evaporating separator (2) by primary cycle pump (13), form primary cycle pipeline, the bottom of described separation chamber II (7) is communicated with the secondary charging aperture (62) of integral type falling liquid film circulating and evaporating separator (2) by secondary cycle pump (16), form secondary cycle pipeline,
Described secondary cycle pipeline is connected with the degree of depth concentrator feed mouth (63) of degree of depth inspissator (3), described degree of depth inspissator (3) comprises three grades of falling film heating devices (9) and three grades of separators (10), the bottom of described three grades of separators (10) is communicated with degree of depth concentrator feed mouth (63) by three grades of circulating pumps (20), form three grades of circulating lines, described three grades of circulating lines are provided with concentrate discharge nozzle (22);
System is provided with compressor (1), second steam circulating line is provided with between itself and integral type falling liquid film circulating and evaporating separator (2) and degree of depth inspissator (3), second steam circulating line is as follows: be provided with one-level secondary between the top of described primary separator (5) and degree of depth inspissator and go out jet chimney (52), the top of described three grades of separators (10) is provided with secondary secondary and goes out jet chimney (53), secondary secondary goes out jet chimney (53) end and is connected with compressor (1), be provided with one-level secondary between the one-level shell side of described compressor (1) and integral type falling liquid film circulating and evaporating separator (2) and enter jet chimney (54), be provided with secondary secondary between described compressor (1) and the secondary shell side of degree of depth inspissator and enter jet chimney (55),
System is also provided with condensate water pot (25), itself and be provided with B-grade condensation water circulating pipe between integral type falling liquid film circulating and evaporating separator (2) and degree of depth inspissator (3), B-grade condensation water circulating pipe is as follows: be provided with one-level condensed water discharge pipe road (49) between described condensate water pot and integral type falling liquid film circulating and evaporating separator (2), B-grade condensation water discharge pipe road (51) is provided with between described condensate water pot and degree of depth inspissator (3), the bottom of described condensate water pot (25) is connected with condensed water preheater by condensate pump (26), described condensed water preheater is connected with condensed water discharge pipe road (28),
System is also provided with fixed gas cooler (38), knockout drum (39) and vavuum pump (42), and be provided with secondary fixed gas circulating line between integral type falling liquid film circulating and evaporating separator (2) and degree of depth inspissator (3), secondary fixed gas circulating line is as follows: described fixed gas cooler (38) one end is connected with knockout drum (39), the lower end of described knockout drum (39) is connected with condensate water pot (25) by secondary fixed gas equalizing main (47), described knockout drum (39) upper end is connected with vavuum pump (42), be provided with one-level between the other end of described fixed gas cooler (38) and integral type falling liquid film circulating and evaporating separator (2) to find time pipeline (36), secondary evacuation tube (37) is provided with between the other end of described fixed gas cooler (38) and degree of depth inspissator (3), one-level fixed gas equalizing main (46) is provided with between condensate water pot (25) and integral type falling liquid film circulating and evaporating separator (2), secondary fixed gas equalizing main (47) is provided with between condensate water pot (25) and degree of depth inspissator (3).
2. three grades of band function of mechanical steam recompression according to claim 1 continuous falling liquid film circulating and evaporating concentration systems, it is characterized in that, the longitudinal central axis line of described primary separator (5) is provided with baffle plate (64), and primary separator (5) is divided into separation chamber I (6) and separation chamber II (7) by described baffle plate (64).
3. three grades of band function of mechanical steam recompression according to claim 1 and 2 continuous falling liquid film circulating and evaporating concentration systems, is characterized in that, the vacuum degree control of described separation chamber I (6), separation chamber II (7) and three grades of separators (10) is 20-85kpa.
4. three grades of band function of mechanical steam recompression according to claim 1 continuous falling liquid film circulating and evaporating concentration systems, it is characterized in that, the top of described evaporation tube I and evaporation tube II is respectively equipped with independently liquid distributor.
5. three grades of band function of mechanical steam recompression according to claim 1 continuous falling liquid film circulating and evaporating concentration systems, it is characterized in that, concentrate discharge nozzle (22) is provided with discharging flow meter (23).
6. three grades of band function of mechanical steam recompression according to claim 1 continuous falling liquid film circulating and evaporating concentration systems, it is characterized in that, described condensed water preheater (27) and raw vapor preheater (34) they are plate type heat exchanger, tubular heat exchanger or spiral tube exchanger.
7. three grades of band function of mechanical steam recompression according to claim 1 continuous falling liquid film circulating and evaporating concentration systems, is characterized in that, be provided with and turn material control valve (24) between described secondary cycle pipeline and primary cycle pipeline.
8. three grades of band function of mechanical steam recompression according to claim 1 continuous falling liquid film circulating and evaporating concentration systems, it is characterized in that, described compressor is high-speed centrifugal compressor, Roots Compressor, low-speed centrifugal vapour compression machine or screw vapour compression machine.
9. three grades of band function of mechanical steam recompression according to claim 8 continuous falling liquid film circulating and evaporating concentration systems, is characterized in that, the compression temperature rise of described compressor is 6-23 DEG C.
10. three grades of band function of mechanical steam recompression according to claim 1 continuous falling liquid film circulating and evaporating concentration systems, is characterized in that, the outlet conduit place of described three grades of circulating pumps (20) is provided with densitometer, and described density counts tuning-fork type or pressure type.
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104759108A (en) * | 2015-03-23 | 2015-07-08 | 河北乐恒化工设备制造有限公司 | Three-stage continuous falling-film circulating evaporation concentration system with machinery vapor recompression |
| CN105031954A (en) * | 2015-08-26 | 2015-11-11 | 浙江森力机械科技股份有限公司 | Non-condensable gas two-level cooling type mechanical steam recompression evaporator |
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| CN107875662A (en) * | 2017-12-15 | 2018-04-06 | 河北乐恒化工设备制造有限公司 | A kind of multi-stage falling film evaporation device |
| CN108069482A (en) * | 2016-11-11 | 2018-05-25 | 中国石油化工股份有限公司抚顺石油化工研究院 | A kind of waste water treatment process and system |
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2015
- 2015-03-23 CN CN201520161398.7U patent/CN204522328U/en not_active Withdrawn - After Issue
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| CN104759108A (en) * | 2015-03-23 | 2015-07-08 | 河北乐恒化工设备制造有限公司 | Three-stage continuous falling-film circulating evaporation concentration system with machinery vapor recompression |
| CN105031954A (en) * | 2015-08-26 | 2015-11-11 | 浙江森力机械科技股份有限公司 | Non-condensable gas two-level cooling type mechanical steam recompression evaporator |
| CN106629937A (en) * | 2015-11-02 | 2017-05-10 | 中国石油化工股份有限公司 | Waste water processing technology and system |
| CN106629937B (en) * | 2015-11-02 | 2020-05-19 | 中国石油化工股份有限公司 | Wastewater treatment process and system |
| CN108069482A (en) * | 2016-11-11 | 2018-05-25 | 中国石油化工股份有限公司抚顺石油化工研究院 | A kind of waste water treatment process and system |
| CN108069479A (en) * | 2016-11-11 | 2018-05-25 | 中国石油化工股份有限公司抚顺石油化工研究院 | A kind of wastewater treatment method and system |
| CN108069479B (en) * | 2016-11-11 | 2020-01-10 | 中国石油化工股份有限公司抚顺石油化工研究院 | Wastewater treatment method and system |
| CN108069482B (en) * | 2016-11-11 | 2020-01-10 | 中国石油化工股份有限公司抚顺石油化工研究院 | Wastewater treatment process and system |
| CN107875662A (en) * | 2017-12-15 | 2018-04-06 | 河北乐恒化工设备制造有限公司 | A kind of multi-stage falling film evaporation device |
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