CN210035938U - Combined type heat pump system - Google Patents
Combined type heat pump system Download PDFInfo
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- CN210035938U CN210035938U CN201920508640.1U CN201920508640U CN210035938U CN 210035938 U CN210035938 U CN 210035938U CN 201920508640 U CN201920508640 U CN 201920508640U CN 210035938 U CN210035938 U CN 210035938U
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Abstract
A compound heat pump system comprising: the system comprises a generator, an absorber, a first steam tank, an evaporator, a condenser, a second steam tank and a first steam compressor; the bottom end of the generator is communicated with a first liquid distributor in the absorber, and a second liquid distributor in the generator is communicated with the bottom end of the absorber to form a first fluid closed circulation loop; the generator is communicated with the condenser, and the condenser is communicated with the evaporator; the evaporator is also communicated with the absorber, so that the steam in the evaporator flows to the absorber; the input end of the first steam tank is communicated with the output end of the heat exchange tube in the absorber; the output end of the first steam tank is communicated with the input end of the heat exchange tube in the absorber to form a second fluid closed loop. The first vapor compressor is arranged between the first vapor tank and the second vapor tank; the first steam compressor raises the pressure of the steam flowing out of the first steam tank and then conveys the steam to the second steam tank. The combined heat pump system can directly and indirectly raise the steam taste, and the consumed energy is less.
Description
Technical Field
The utility model belongs to the technical field of the energy environmental protection technique and specifically relates to a combined type heat pump system is related to.
Background
The existing second-class absorption heat pump generates lower steam pressure when the waste heat temperature is lower, if higher steam pressure is needed, a two-stage absorption mode is adopted, namely two conventional second-class heat pumps are adopted to be connected in series, after high-temperature hot water is generated by the first-stage heat pump, the high-temperature hot water is used as waste water to heat the second-stage heat pump, finally the second-stage heat pump generates higher-temperature water, the higher-temperature water is subjected to flash evaporation to obtain higher-pressure steam, and the two-stage absorption mode can result in lower efficiency of a heat pump system and higher energy consumption and cooling water consumption. Moreover, when the temperature of the high-temperature hot water generated by the first-stage heat pump is low, steam with sufficiently high pressure cannot be generated, and the range of use is limited.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a combined type heat pump system. In this combined type heat pump system, the vapor that the evaporimeter produced is through first steam compressor pressurization back, is absorbed by the absorber and releases the heat, utilizes this part heat, can improve the temperature of the interior liquid of heat exchange tube of absorber, and the interior liquid of heat exchange tube flows into in the first steam jar by the flash distillation production low pressure steam, and this low pressure steam flows into the second steam jar after stepping up, obtains high pressure steam. The steam grade can be directly and indirectly raised through a direct compression mode of the steam and the flow process of the absorption heat pump, so that the consumed energy is less.
In order to solve the above problem, the utility model provides a combined type heat pump system, include: the system comprises a generator, an absorber, a first steam tank, an evaporator, a condenser and a first steam compressor; the bottom end of the generator is communicated with a first liquid distributor in the absorber, and a second liquid distributor in the generator is communicated with the bottom end of the absorber to form a first fluid closed circulation loop; the generator is communicated with the condenser, and the condenser is communicated with the evaporator; the evaporator is also communicated with the absorber, so that the steam in the evaporator flows to the absorber; two ends of the first steam tank are respectively communicated with the heat exchange tubes in the absorber to form a second fluid closed loop. The first vapor compressor is arranged between the absorber and the evaporator; the first steam compressor raises the pressure of the water vapor flowing out of the evaporator and sends the water vapor to the absorber.
Further, still include: a second vapor canister and a second vapor compressor; the second vapor compressor is arranged between the first vapor tank and the second vapor tank; the second steam compressor raises the pressure of the steam flowing out of the first steam tank and then conveys the steam to the second steam tank; the internal pressure of the second steam drum is higher than the internal pressure of the first steam drum.
Further, still include: a heat exchanger disposed between the generator and the absorber such that liquid flowing from the generator into the absorber exchanges heat with liquid flowing from the absorber into the generator.
Further, still include: and the first pump is arranged between the generator and the absorber and is used for conveying the fluid in the generator to a liquid distributor arranged in the absorber.
Further, still include: and the second pump is arranged between the condenser and the evaporator and is used for conveying the fluid in the condenser to a liquid distributor arranged in the evaporator.
Further, still include: and the input end of the third pump is communicated with the bottom of the evaporator, and the output end of the third pump is communicated with a liquid distributor arranged in the evaporator, so that the fluid in the evaporator is conveyed to the liquid distributor arranged in the evaporator.
Further, still include: and the fourth pump is arranged between the first steam tank and the absorber, conveys the fluid in the first steam tank into a heat exchange pipe in the absorber and flows back to the first steam tank through the heat exchange pipe.
The above technical scheme of the utility model has following profitable technological effect:
the embodiment of the utility model provides an among the combined type heat pump system, the absorber emits the heat after absorbing the vapor that the evaporimeter produced, utilizes this part heat to improve the temperature of the interior liquid of heat exchange tube in the absorber, and the liquid flows into in the first steam pot by the flash distillation production low pressure steam, and this low pressure steam flows into the second steam pot after further stepping up through first vapor compressor, and the second steam pot will evaporate this part steam once more and obtain high pressure steam. The steam taste can be directly and indirectly raised, and the consumed energy is less.
Drawings
Fig. 1 is a schematic structural diagram of a compound heat pump system according to a first embodiment of the present invention.
Reference numerals:
1: a generator; 2: an absorber; 3: a first steam drum; 4: an evaporator; 5: a condenser; 6: a first vapor compressor; 7: a second steam drum; 8: a second vapor compressor; 9: a heat exchanger; 10: a first pump; 11: a second pump; 12: a third pump; 13: a fourth pump; 14: a first waste hot water line; 15: a cooling water line; 16: a second waste hot water line.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in detail with reference to the accompanying drawings. It should be understood that the description is intended to be illustrative only and is not intended to limit the scope of the present invention. Moreover, in the following description, descriptions of well-known structures and techniques are omitted so as to not unnecessarily obscure the concepts of the present invention.
Fig. 1 is a schematic structural diagram of a compound heat pump system according to a first embodiment of the present invention.
As shown in fig. 1, the compound heat pump system includes: a generator 1, an absorber 2, a first vapor tank 3, an evaporator 4, a condenser 5 and a first vapor compressor 6; the bottom end of the generator 1 is communicated with a first liquid distributor in the absorber 2, and a second liquid distributor in the generator 1 is communicated with the bottom end of the absorber 2 to form a first fluid closed circulation loop; the generator 1 is communicated with a condenser 5, and the condenser 5 is communicated with an evaporator 4; the evaporator 4 is also communicated with the absorber 2, so that the steam in the evaporator flows to the absorber 2; the input end of the first steam tank 3 is communicated with the output end of the heat exchange tube in the absorber 2; the output end of the first steam tank 3 is communicated with the input end of the heat exchange tube in the absorber 2 to form a second fluid closed loop.
Wherein, the generator 1 and the condenser 5 can be communicated through a pipeline, or the cavities of the generator 1 and the condenser 5 are arranged in a cylinder, and the middle is communicated through a clapboard with a hole.
The first steam compressor 6 is a steam compressor, and raises the pressure of the steam flowing out of the evaporator 4 by using electric energy and sends the steam into the absorber 2. By adopting the first steam compressor 6, on one hand, the water vapor in the evaporator 4 is input into the absorber 2 after the pressure is increased, so that the pressure in the absorber 2 is increased, the absorption efficiency in the absorber 2 can be further increased, the temperature of the heat exchange tube in the absorber 2 is increased, and the steam pressure of the first steam tank 3 can be increased. On the other hand, the steam pressure in the evaporator 4 is reduced, so that the evaporator 4 can generate more steam under the waste heat water in the second waste hot water pipeline 16 with the same temperature, the outlet water temperature of the waste hot water is lower, and more waste heat can be utilized. Therefore, the first steam compressor 6 can directly improve the taste of steam, further improve the waste heat recovery efficiency and save more energy.
In a preferred embodiment, the compound heat pump system further comprises: a second vapor canister 7 and a second vapor compressor 8; the second vapor compressor 8 is disposed between the first vapor tank 3 and the second vapor tank 7; the second steam compressor 8 raises the pressure of the steam flowing out of the first steam tank 3 and then transmits the steam to the second steam tank 7; the internal pressure of the second steam drum 3 is higher than the internal pressure of the first steam drum 3. The temperature of the steam flowing out of the second steam tank 3 is higher, and the application range is wider.
Optionally, the second steam compressor 8 is a water vapor compressor, and the water vapor pressure flowing out of the first steam tank 3 is raised by using electric energy and then is conveyed to the second steam tank 6.
The embodiment of the utility model provides an above-mentioned combined type heat pump system is provided with first vapor compressor and second vapor compressor, absorbs the heat pump with current two-stage formula, under the prerequisite that reaches the same higher pressure, the waste heat utilization efficiency that the heat pump was absorbed to current two-stage formula is lower, about 0.3 more or less, and the utility model discloses an absorption heat pump system, waste heat utilization is higher, about 0.5 more or less, consequently, compares in current two-stage formula absorption heat pump, the utility model provides an absorption heat pump is comparatively energy-conserving.
For example, if a one-stage heat pump system technology is adopted, 1 part of waste heat can generate 0.5 part of steam heat, and the rest of heat is discharged, the rest of heat utilization efficiency is 0.5, although the efficiency is higher, the generated steam pressure is lower. By adopting the existing two-stage heat pump technology, 1 part of waste heat can generate about 0.3 part of steam heat, the rest 0.7 part of heat is discharged, the rest heat utilization efficiency is lower and is 0.3, but the generated steam pressure is higher. The first steam compressor and the second steam compressor are arranged on the basis of the primary heat pump system, more than 0.5 part of steam with higher pressure can be generated, and compared with the primary heat pump system, the steam pressure is greatly improved by only using a small amount of electric energy.
In one embodiment, the compound heat pump system further comprises: and a heat exchanger 9 disposed between the generator 1 and the absorber 2 so that the liquid flowing from the generator 1 into the absorber 2 is heat-exchanged with the liquid flowing from the absorber 2 into the generator 1.
Alternatively, the heat exchanger 9 is a shell-and-tube heat exchanger, the fluid flowing from the absorber 2 to the generator 1 flows into the generator 1 through the heat exchange tubes of the heat exchanger, and the fluid flowing from the generator 1 to the absorber 2 flows into the absorber 2 through the shell of the heat exchanger and outside the heat exchange tubes.
Alternatively, the fluid flowing from the generator 1 to the absorber 2 flows into the absorber 2 through the heat exchange tubes of the heat exchanger, and the fluid flowing from the absorber 2 to the generator 1 flows into the generator 1 through the shell of the heat exchanger and outside the heat exchange tubes.
In one embodiment, the compound heat pump system further comprises: and the first pump 10 is arranged between the generator 1 and the absorber 2 and is used for conveying the fluid in the generator 1 to a liquid distributor arranged in the absorber 2.
In one embodiment, the compound heat pump system further comprises: and a second pump 11 disposed between the condenser 5 and the evaporator 4 for delivering the fluid in the condenser 5 to a liquid distributor disposed in the evaporator 4.
In one embodiment, the compound heat pump system further comprises: and the input end of the third pump 12 is communicated with the bottom of the evaporator 4, and the output end of the third pump is communicated with a liquid distributor arranged in the evaporator 4, so that the fluid in the evaporator 4 is conveyed to the liquid distributor arranged in the evaporator 4.
In one embodiment, the compound heat pump system further comprises: and a fourth pump 13 disposed between the first vapor tank 3 and the absorber 2, delivering the fluid in the first vapor tank 3 to the heat exchange tubes in the absorber 2, and flowing back to the first vapor tank 3 through the heat exchange tubes.
Further, the compound heat pump further includes a first waste hot water pipeline 14, a cooling water pipeline 15 and a second waste hot water pipeline 16.
The first waste hot water pipeline 14 is communicated with a heat exchange pipe in the generator 1 so as to realize heat exchange between the waste hot water in the first waste hot water pipeline and liquid in the generator. The cooling water pipeline 15 is communicated with the heat exchange pipe in the condenser 5 to realize heat exchange between the cooling water and the liquid in the condenser, and the second waste hot water pipeline is communicated with the heat exchange pipe in the evaporator 4 to realize heat exchange between the liquid in the evaporator 4 and the waste hot water in the second waste hot water pipeline.
Optionally, the outlet of the first waste hot water pipeline may be communicated with the inlet of the second waste hot water pipeline, and the outlet of the second waste hot water pipeline may be communicated with the inlet of the first waste hot water pipeline to serve as a waste hot water circulation pipeline.
The working method of the compound heat pump system provided by the embodiment of the present invention will be described as follows:
the solution in the generator is pressurized by a first pump 10, the heat of the liquid flowing into the generator 1 from the absorber 2 is absorbed by a heat exchanger 9 and then enters the absorber 2, the steam generated by the evaporation of refrigerant water in the evaporator 4 is absorbed outside a heat exchange pipe in the absorber 2 and becomes dilute solution to release heat, the heat is absorbed by hot water in the heat exchange pipe of the absorber 2 and then enters a first steam tank 3, the dilute solution is flashed by the first steam tank 3 to generate steam, and the steam enters a second steam tank 7 after being boosted by a second steam compressor 8.
The steam obtained by evaporating the refrigerant in the evaporator 4 enters the absorber 2 through the first steam compressor 6, and the outlet temperature of the hot water in the heat exchange tube in the absorber 2 is increased, so that the temperature and the pressure of the saturated steam generated by the hot water entering the first steam tank 3 are correspondingly increased.
The dilute solution in the absorber 2 is discharged heat through the heat exchanger 9 and then enters the generator 1, absorbs the heat contained in the first waste hot water, refrigerant steam generated in the generator 1 flows into the condenser 5, and meanwhile, the dilute solution in the generator 1 is changed into a concentrated solution. The concentrated solution from the bottom of the generator 1 is pressurized by a first pump 10 and flows through a heat exchanger 9 into the absorber, completing the circulation of the solution.
The refrigerant vapor flowing into the condenser 5 from the generator 1 is condensed into refrigerant water in the condenser 5, the refrigerant water is pressurized by the second pump 11 and then enters the evaporator 4, and the refrigerant water flowing out of the evaporator 4 is pressurized by the third pump 12 and then flows back to the evaporator 4 through a liquid distributor inside the evaporator. The refrigerant water absorbs heat of the second waste hot water in the evaporator 4 and then evaporates to form refrigerant vapor. The refrigerant steam enters the absorber 2 after the pressure is increased by the first steam compressor 6, the concentrated solution outside the absorber 2 absorbs the heat of the refrigerant steam, the temperature of the hot water inside the absorber 2 is increased, and meanwhile, the concentrated solution inside the absorber 2 absorbs the steam and then becomes the dilute solution.
Saturated water in the first steam tank 3 is conveyed into the heat exchange tube of the absorber 2 through the fourth pump 13, the temperature in the absorber 2 rises, the saturated water is flashed into low-pressure steam in the first steam tank 3, the saturated water is further boosted into high-pressure steam through the second steam compressor 8, and the high-pressure steam enters the second steam tank.
The embodiment of the utility model provides an among the combined type heat pump system, the absorber emits the heat after absorbing the vapor that the evaporimeter produced, utilizes this part heat to improve the temperature of the interior liquid of heat exchange tube in the absorber, and the liquid flows into in the first steam pot by the flash distillation production low pressure steam, and this low pressure steam flows into the second steam pot after further stepping up through first vapor compressor, and the second steam pot will evaporate this part steam once more and obtain high pressure steam. The steam taste can be directly and indirectly raised, and the consumed energy is less.
It is to be understood that the above-described embodiments of the present invention are merely illustrative of or explaining the principles of the invention and are not to be construed as limiting the invention. Therefore, any modification, equivalent replacement, improvement and the like made without departing from the spirit and scope of the present invention should be included in the protection scope of the present invention. Further, it is intended that the appended claims cover all such variations and modifications as fall within the scope and boundaries of the appended claims or the equivalents of such scope and boundaries.
Claims (7)
1. A compound heat pump system, comprising: the system comprises a generator (1), an absorber (2), a first steam tank (3), an evaporator (4), a condenser (5) and a first steam compressor (6);
the bottom end of the generator (1) is communicated with a first liquid distributor in the absorber (2), and a second liquid distributor in the generator (1) is communicated with the bottom end of the absorber (2) to form a first fluid closed circulation loop;
the generator (1) is communicated with the condenser (5), and the condenser (5) is communicated with the evaporator (4);
the evaporator (4) is also communicated with the absorber (2) so as to enable the steam in the evaporator to flow to the absorber (2);
the input end of the first steam tank (3) is communicated with the output end of a heat exchange pipe in the absorber (2); the output end of the first steam tank (3) is communicated with the input end of a heat exchange tube in the absorber (2) to form a second fluid closed loop;
the first vapor compressor (6) is arranged between the absorber (2) and the evaporator (4);
the first steam compressor (6) raises the pressure of the water vapor flowing out of the evaporator (4) and then conveys the water vapor to the absorber (2).
2. The composite heat pump system of claim 1, further comprising: a second vapor tank (7) and a second vapor compressor (8);
the second vapor compressor (8) is arranged between the first vapor tank (3) and the second vapor tank (7);
the second steam compressor (8) raises the pressure of the steam flowing out of the first steam tank (3) and then conveys the steam to the second steam tank (7);
the internal pressure of the second steam tank (7) is higher than the internal pressure of the first steam tank (3).
3. The composite heat pump system of claim 1, further comprising: a heat exchanger (9) arranged between the generator (1) and the absorber (2) to heat exchange liquid flowing from the generator (1) into the absorber (2) with liquid flowing from the absorber (2) into the generator (1).
4. The composite heat pump system of claim 1, further comprising: the first pump (10) is arranged between the generator (1) and the absorber (2) and used for conveying the fluid in the generator (1) to a first liquid distributor in the absorber (2).
5. The composite heat pump system of claim 1, further comprising: and the second pump (11) is arranged between the condenser (5) and the evaporator (4) and used for conveying the fluid in the condenser (5) to a third liquid distributor arranged in the evaporator (4).
6. The composite heat pump system of claim 1, further comprising: and the input end of the third pump (12) is communicated with the bottom of the evaporator (4), the output end of the third pump is communicated with a third liquid distributor arranged in the evaporator (4), and the fluid in the evaporator (4) is conveyed to the third liquid distributor arranged in the evaporator (4).
7. The composite heat pump system of claim 1, further comprising: and the fourth pump (13) is arranged between the first steam tank (3) and the absorber (2), conveys the fluid in the first steam tank (3) to a heat exchange pipe in the absorber (2), and flows back to the first steam tank (3) through the heat exchange pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920508640.1U CN210035938U (en) | 2019-04-15 | 2019-04-15 | Combined type heat pump system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920508640.1U CN210035938U (en) | 2019-04-15 | 2019-04-15 | Combined type heat pump system |
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| CN210035938U true CN210035938U (en) | 2020-02-07 |
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| CN201920508640.1U Active CN210035938U (en) | 2019-04-15 | 2019-04-15 | Combined type heat pump system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114503974A (en) * | 2022-03-10 | 2022-05-17 | 成都农业科技职业学院 | Electrostatic spraying unmanned aerial vehicle |
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2019
- 2019-04-15 CN CN201920508640.1U patent/CN210035938U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114503974A (en) * | 2022-03-10 | 2022-05-17 | 成都农业科技职业学院 | Electrostatic spraying unmanned aerial vehicle |
| CN114503974B (en) * | 2022-03-10 | 2024-10-01 | 成都农业科技职业学院 | Electrostatic spraying unmanned aerial vehicle |
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