CN111336685A - Super heat pump - Google Patents
Super heat pump Download PDFInfo
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- CN111336685A CN111336685A CN202010274402.6A CN202010274402A CN111336685A CN 111336685 A CN111336685 A CN 111336685A CN 202010274402 A CN202010274402 A CN 202010274402A CN 111336685 A CN111336685 A CN 111336685A
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- 238000000034 method Methods 0.000 claims abstract description 10
- 230000008569 process Effects 0.000 claims abstract description 10
- 238000010438 heat treatment Methods 0.000 claims abstract description 8
- 239000000203 mixture Substances 0.000 claims description 31
- 239000006096 absorbing agent Substances 0.000 claims description 30
- 239000003638 chemical reducing agent Substances 0.000 claims description 22
- 239000007788 liquid Substances 0.000 claims description 12
- 238000009835 boiling Methods 0.000 claims description 4
- 230000001788 irregular Effects 0.000 claims description 2
- 239000000126 substance Substances 0.000 claims 2
- 238000006243 chemical reaction Methods 0.000 abstract description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 229910003460 diamond Inorganic materials 0.000 description 1
- 239000010432 diamond Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008929 regeneration Effects 0.000 description 1
- 238000011069 regeneration method Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H4/00—Fluid heaters characterised by the use of heat pumps
- F24H4/02—Water heaters
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B30/00—Heat pumps
- F25B30/02—Heat pumps of the compression type
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Sorption Type Refrigeration Machines (AREA)
Abstract
The invention provides a super heat pump, and belongs to the field of energy conversion. The two-sided phase-change heat exchanger and the three compressors adopt five working media to complete a circulation process, and heat transfer and mass transfer processes are simultaneously completed in the inner space and the outer space of the heat transfer pipe of the two-sided phase-change heat exchanger, so that compared with the prior art, the heat exchanger has the advantages that the heating temperature can reach more than 150 ℃, the outlet temperature difference of a heat source and a heat sink reaches more than 50 ℃, and other cold sources or heat source assistance is not needed. Compared with the prior art, the temperature working range of the super heat pump is remarkably improved, and the super heat pump has a wide application prospect in industrial or civil occasions.
Description
Technical Field
The invention belongs to the technical field of energy conversion, and particularly relates to a device for transferring heat from a low-temperature object to a high-temperature object.
Background
There are a large number of heat exchange processes in the field of energy conversion, according to the second law of thermodynamics: heat can only be transferred spontaneously from a high temperature object to a low temperature object. This is at a cost if heat needs to be transferred from a low temperature object to a high temperature object. The temperature difference is the driving force for heat transfer, and only a conventional heat exchanger is needed when heat is required to be transferred from a high-temperature object to a low-temperature object, but equipment such as a heat pump is needed when heat is transferred from the low-temperature object to the high-temperature object. The conventional heat pump equipment is limited by the performance and the flow of a circulating working medium, and generally can only work in a temperature range below 100 ℃, and the temperature difference between a high-temperature object and a low-temperature object is not higher than 30 ℃, so that the application range of the heat pump in the whole energy temperature range is narrow.
The invention provides a super heat pump cycle, which constructs a new heat pump cycle by utilizing a vapor compression process and an absorption regeneration process, and has the following remarkable advantages compared with the prior heat pump technology: (1) the heating temperature can reach more than 150 ℃; (2) the temperature difference between the heat source and the heat sink outlet reaches more than 50 ℃; (3) no other cold source or heat source is needed for assistance.
Compared with the prior heat pump technology, the temperature working range of the super heat pump is greatly improved, the heat exchange range of heat exchange of a heat source and a heat sink is further improved, and the super heat pump has a wide application prospect in industrial or civil occasions.
Disclosure of Invention
The invention provides the super heat pump, the heating temperature reaches more than 150 ℃, and no additional cold source or heat source is needed for assistance in the heat exchange process, so that the heat exchange efficiency and the heat exchange temperature range of high-temperature objects and low-temperature objects in industrial or civil application occasions are remarkably improved.
The invention provides a super heat pump for transferring heat from a low-temperature object to a high-temperature object, which is composed of an absorber 1, a two-phase heat exchanger A2, a two-phase heat exchanger B3, an evaporator 4, a condenser 5, a compressor A6, a compressor B7, a compressor C8, a heat exchanger A9, a heat exchanger B10, a pressure reducer A11, a pressure reducer B12, a circulating pump A13, a circulating pump B14, a heat sink inlet 15, a heat sink outlet 16, a heat source outlet 17, a heat source inlet 18, a nozzle 19 and an energy exchanger 20.
The internal circulation medium of the super heat pump consists of a medium A, a medium B, a medium C, a medium D and a medium E, wherein the medium A and the medium B form a medium pair, the boiling point of the medium A is lower than that of the medium B, the medium C and the medium D form a medium pair, and the boiling point of the medium C is lower than that of the medium D.
In the super heat pump, an absorber 1 is connected with a compressor A6 and a heat exchanger A9, a two-phase converter A2 is connected with the compressor A6, the heat exchanger A6, a circulating pump A6, a compressor C6 and a heat exchanger B6, the two-phase converter B6 is connected with the circulating pump B6, the heat exchanger B6, a pressure reducer B6 and the compressor B6, a condenser 5 is connected with the compressor B6, the pressure reducer B6, the two-phase converter B6 and the pressure reducer A6, an evaporator 4 is connected with the compressor C6 and the pressure reducer A6, the compressor A6 is connected with the absorber 1 and the two-phase converter A6, the compressor B6 is connected with the two-phase converter B6 and the condenser 5, the compressor C6 is connected with the evaporator 4 and the two-phase converter A6, the heat exchanger A6 is connected with the absorber 1, the two-phase converter A6 and the circulating pump A6, and the heat exchanger B6 are connected with the circulating pump B36.
In the super heat pump, medium A leaves a two-phase converter A2 and enters an absorber 1 through a compressor A6. After leaving the absorber 1, the mixture of medium a and medium B passes through heat exchanger a9, two-phase heat exchanger a2 and circulation pump a13 in that order, and then passes through heat exchanger a9 again and returns to the absorber 1, and so on. Medium C leaves the two-phase converter B3 and passes through the condenser 5, evaporator 4 and compressor C8 in that order to enter the two-phase converter a 2. The mixture of medium C and medium D leaves the two-phase heat exchanger a2 and is returned to the two-phase heat exchanger a2 after passing through heat exchanger B10, two-phase heat exchanger B3, circulation pump B14 and heat exchanger B10. The medium E leaves the condenser 5, passes through the compressor B7, the two-phase converter B3 and the pressure reducer B12, and returns to the condenser 5, and is circulated in a reciprocating manner.
In the super heat pump, the internal circulation principle is as follows: the gaseous medium A compressed by the compressor A6 in the absorber 1 enters the mixture composed of the medium A and the medium B to release heat for heating a heat sink, the mixture composed of the medium A and the medium B passes through the heat exchanger A9 and then enters the inner space of the energy exchanger 20 in the two-phase heat exchanger A2 to be heated by the mixture composed of the medium C and the medium D in the outer space of the energy exchanger 20, the mixture composed of the medium A and the medium B is separated to form a part of the gaseous medium A to enter the compressor A6, and the mixture composed of the residual medium A and the medium B enters the absorber 1 through the circulating pump A13 and the heat exchanger A9. The mixture of the medium C and the medium D is heated by the condensing phase-change heat of the gaseous medium E in the two-phase converter B3, other generated medium C enters the condenser 5, the gaseous medium C is changed into liquid after heating the medium E, the liquid medium C enters the evaporator 4 after passing through the decompressor A11 and is heated by the heat of the heat source and changed into gas again, the gaseous medium C is heated and boosted by the compressor C8 and then enters the two-phase converter A2, and the cycle is carried out. The medium E circulates from a gaseous state to a liquid state in the two-phase heat exchanger B3 and from a liquid state to a gaseous state in the condenser 5.
In the super heat pump, an evaporator 4 is used for extracting heat of a heat source, and an absorber 1 is used for releasing heat to a heat sink.
In the super heat pump, two-phase heat exchangers are used simultaneously, wherein the two-phase heat exchanger A2 adopts the energy exchanger 20 which is vertically arranged, and the heat transfer and mass transfer processes are completed simultaneously in the internal space and the external space, so that the heat transfer and mass transfer efficiency is obviously improved, and the overall performance of the super heat pump is obviously improved. In the two-phase heat exchanger A2, the mixture of medium C and medium D is sprayed horizontally to the outer space of the energy exchanger 20 by using the nozzle 19, and the mixture of medium C and medium D is sprayed to the complete wall surface of the energy exchanger, so that the problem of 'light zone' is solved, and in order to increase the heat and mass transfer area under the same volume, the cross section of the energy exchanger 20 is round, square or irregular.
In the super heat pump, three compressors are used for respectively carrying out temperature rise and pressure rise processes on a medium A, a medium C and a medium E, and each compressor is driven by a motor or a machine.
Drawings
FIG. 1 is a diagram of a super heat pump system.
Reference numerals:
1-absorber, 2-biphase heat converter A, 3-biphase heat converter B, 4-evaporator, 5-condenser, 6-compressor A, 7-compressor B, 8-compressor C, 9-heat exchanger A, 10-heat exchanger B, 11-pressure reducer A, 12-pressure reducer B, 13-circulating pump A, 14-circulating pump B, 15-heat sink inlet, 16-heat sink outlet, 17-heat source outlet, 18-heat source inlet, 19-nozzle, 20-energy exchanger
Detailed Description
In order to make the implementation objects, technical solutions and advantages of the present invention clearer, the technical solutions in the embodiments of the present invention will be described in more detail below with reference to the accompanying drawings in the embodiments of the present invention. In the drawings, the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The described embodiments are only some, but not all embodiments of the invention. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the internal circulation of this embodiment, medium a is R32, medium B is R22, medium C is R11, medium D is R143a, and medium E is R290.
In this embodiment, absorber 1 is connected to compressor a6 and heat exchanger a9, two-phase converter a2 is connected to compressor a6, heat exchanger a9, circulation pump a13, compressor C8 and heat exchanger B10, two-phase converter B is connected to circulation pump B14, heat exchanger B10, pressure reducer B12 and compressor B7, condenser 5 is connected to compressor B7, pressure reducer B12, two-phase converter B3 and pressure reducer a11, evaporator 4 is connected to compressor C8 and pressure reducer a11, compressor a6 is connected to absorber 1 and two-phase converter a2, compressor B7 is connected to two-phase converter B3 and condenser 5, compressor C8 is connected to evaporator 4 and two-phase converter a2, heat exchanger a9 is connected to absorber 1, two-phase converter a2 and circulation pump a13, and heat exchanger B10 is connected to circulation pump B14, two-phase converter B3 and two-phase converter a 2.
In this example, R32 exits the two-phase shift heat exchanger a2 and enters the absorber 1 via compressor a 6. After leaving absorber 1, the mixture of R32 and R22 passes through heat exchanger a9, two-phase heat exchanger a2 and circulation pump a13 in that order, and then passes through heat exchanger a9 again and returns to absorber 1, and so on. R11 leaves the two-phase converter B3 and passes through the condenser 5, evaporator 4 and compressor C8 in that order to enter the two-phase converter a 2. The mixture of R11 and R143a leaves the two-phase heat exchanger a2 and is returned to the two-phase heat exchanger a2 after passing through heat exchanger B10, two-phase heat exchanger B3, circulation pump B14 and heat exchanger B10. R290 leaves the condenser 5 and returns to the condenser 5 through compressor B7, two-phase converter B3 and reducer B12, and so on.
In this embodiment, the internal circulation principle is: gaseous R32 compressed by compressor A6 in absorber 1 enters the mixture of R32 and R22 to release heat for heating a heat sink, the mixture of R32 and R22 passes through heat exchanger A9 and then enters the inner space of energy exchanger 20 in two-phase heat exchanger A2 to be heated by the mixture of R11 and R143a in the outer space of energy exchanger 20, the mixture of R32 and R22 separates part of gaseous R32 to enter compressor A6, and the remaining mixture of R32 and R22 passes through circulating pump A13 and heat exchanger A9 to enter absorber 1. The mixture of R11 and R143a is heated by the phase change heat of the gaseous R290 in the two-phase converter B3, wherein the other R11 generated enters the condenser 5, the gaseous R11 heats the R290 to become liquid, the liquid R11 passes through the pressure reducer A11 and enters the evaporator 4 to be heated by the heat of the heat source to become gaseous again, the gaseous R11 passes through the compressor C8 to increase the temperature and the pressure and then enters the two-phase converter A2, and the cycle is carried out. R290 is circulated from a gas state to a liquid state in the two-phase heat exchanger B3 and from a liquid state to a gas state in the condenser 5.
In this embodiment, one stream of hot water at 110 ℃ enters the absorber 1 through the heat sink inlet 15, is heated to 150 ℃ and exits through the heat sink outlet 16, and the other stream of hot water at 80 ℃ enters the evaporator 4 through the heat source inlet 18 and is cooled to 50 ℃ and exits through the heat source outlet 17.
In this embodiment, two-phase heat exchangers are used simultaneously, wherein the two-phase heat exchanger a2 employs the vertically arranged energy exchanger 20, and the internal space and the external space complete the heat and mass transfer process simultaneously, thereby significantly improving the heat and mass transfer efficiency and further significantly improving the overall performance of the super heat pump. In the two-phase heat exchanger A2, a mixture of R11 and R143a is sprayed to the outer space of the energy exchanger 20 horizontally by a nozzle 19, and a mixture of R11 and R143a is sprayed to the complete wall surface of the energy exchanger, so that the problem of a light area is solved, and the cross section of the energy exchanger 20 is a diamond shape.
Finally, it should be pointed out that: the above examples are only for illustrating the technical solutions of the present invention, and are not limited thereto. Although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (5)
1. A super heat pump, characterized by: the system comprises an absorber 1, a two-phase converter A2, a two-phase converter B3, an evaporator 4, a condenser 5, a compressor A6, a compressor B7, a compressor C8, a heat exchanger A9, a heat exchanger B10, a pressure reducer A11, a pressure reducer B12, a circulating pump A13, a circulating pump B14, a heat sink inlet 15, a heat sink outlet 16, a heat source outlet 17, a heat source inlet 18, a nozzle 19 and an energy exchanger 20.
In the super heat pump, an absorber 1 is connected with a compressor A6 and a heat exchanger A9, a two-phase converter A2 is connected with the compressor A6, the heat exchanger A6, a circulating pump A6, a compressor C6 and a heat exchanger B6, the two-phase converter B6 is connected with the circulating pump B6, the heat exchanger B6, a pressure reducer B6 and the compressor B6, a condenser 5 is connected with the compressor B6, the pressure reducer B6, the two-phase converter B6 and the pressure reducer A6, an evaporator 4 is connected with the compressor C6 and the pressure reducer A6, the compressor A6 is connected with the absorber 1 and the two-phase converter A6, the compressor B6 is connected with the two-phase converter B6 and the condenser 5, the compressor C6 is connected with the evaporator 4 and the two-phase converter A6, the heat exchanger A6 is connected with the absorber 1, the two-phase converter A6 and the circulating pump A6, and the heat exchanger B6 are connected with the circulating pump B36.
In the super heat pump, medium A leaves a two-phase converter A2 and enters an absorber 1 through a compressor A6. After leaving the absorber 1, the mixture of medium a and medium B passes through heat exchanger a9, two-phase heat exchanger a2 and circulation pump a13 in that order, and then passes through heat exchanger a9 again and returns to the absorber 1, and so on. Medium C leaves the two-phase converter B3 and passes through the condenser 5, evaporator 4 and compressor C8 in that order to enter the two-phase converter a 2. The mixture of medium C and medium D leaves the two-phase heat exchanger a2 and is returned to the two-phase heat exchanger a2 after passing through heat exchanger B10, two-phase heat exchanger B3, circulation pump B14 and heat exchanger B10. The medium E leaves the condenser 5, passes through the compressor B7, the two-phase converter B3 and the pressure reducer B12, and returns to the condenser 5, and is circulated in a reciprocating manner.
In the super heat pump, the internal circulation principle is as follows: the gaseous medium A compressed by the compressor A6 in the absorber 1 enters the mixture composed of the medium A and the medium B to release heat for heating a heat sink, the mixture composed of the medium A and the medium B passes through the heat exchanger A9 and then enters the inner space of the energy exchanger 20 in the two-phase heat exchanger A2 to be heated by the mixture composed of the medium C and the medium D in the outer space of the energy exchanger 20, the mixture composed of the medium A and the medium B is separated to form a part of the gaseous medium A to enter the compressor A6, and the mixture composed of the residual medium A and the medium B enters the absorber 1 through the circulating pump A13 and the heat exchanger A9. The mixture of the medium C and the medium D is heated by the condensing phase-change heat of the gaseous medium E in the two-phase converter B3, other generated medium C enters the condenser 5, the gaseous medium C is changed into liquid after heating the medium E, the liquid medium C enters the evaporator 4 after passing through the decompressor A11 and is heated by the heat of the heat source and changed into gas again, the gaseous medium C is heated and boosted by the compressor C8 and then enters the two-phase converter A2, and the cycle is carried out. The medium E circulates from a gaseous state to a liquid state in the two-phase heat exchanger B3 and from a liquid state to a gaseous state in the condenser 5.
2. The super heat pump according to claim 1, wherein: the internal circulating medium of the device consists of a medium A, a medium B, a medium C, a medium D and a medium E, wherein the medium A and the medium B form a medium pair, the boiling point of the medium A is lower than that of the medium B, the medium C and the medium D form a medium pair, the boiling point of the medium C is lower than that of the medium D, and the components of the medium A, the medium B, the medium C, the medium D and the medium E are single chemical substances or a mixture of two chemical substances.
3. The super heat pump according to claim 1, wherein: the evaporator 4 is used to extract heat from the heat source and the absorber 1 is used to release heat to the heat sink.
4. The super heat pump according to claim 1, wherein: two double-phase heat exchangers are used simultaneously, wherein the energy exchanger 20 which is vertically arranged is adopted in the double-phase heat exchanger A2, and the heat transfer and mass transfer processes are completed simultaneously in the inner space and the outer space, so that the heat transfer and mass transfer efficiency is obviously improved, and the overall performance of the super heat pump is obviously improved. In the two-phase heat exchanger A2, the mixture of medium C and medium D is sprayed horizontally to the outer space of the energy exchanger 20 by using the nozzle 19, and the mixture of medium C and medium D is sprayed to the complete wall surface of the energy exchanger, so that the problem of 'light zone' is solved, and in order to increase the heat and mass transfer area under the same volume, the cross section of the energy exchanger 20 is round, square or irregular.
5. The super heat pump according to claim 1, wherein: and (3) respectively carrying out temperature rise and pressure rise processes on the medium A, the medium C and the medium E by using three compressors, wherein each compressor is driven by a motor or a machine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010274402.6A CN111336685A (en) | 2020-04-09 | 2020-04-09 | Super heat pump |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010274402.6A CN111336685A (en) | 2020-04-09 | 2020-04-09 | Super heat pump |
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| CN111336685A true CN111336685A (en) | 2020-06-26 |
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| CN202010274402.6A Pending CN111336685A (en) | 2020-04-09 | 2020-04-09 | Super heat pump |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112361659A (en) * | 2020-11-26 | 2021-02-12 | 华北电力大学 | Super heat pump of energy potential coupling |
| CN112539571A (en) * | 2020-12-23 | 2021-03-23 | 华北电力大学 | Large-temperature-rise super heat pump heat exchange device and heat exchange method thereof |
| CN112539573A (en) * | 2020-12-23 | 2021-03-23 | 华北电力大学 | Efficient super heat pump heat exchange device and heat exchange method |
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| CN213237962U (en) * | 2020-04-09 | 2021-05-18 | 华北电力大学 | Super heat pump |
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2020
- 2020-04-09 CN CN202010274402.6A patent/CN111336685A/en active Pending
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| JP2013217512A (en) * | 2012-04-04 | 2013-10-24 | Osaka Gas Co Ltd | Engine driven heat pump air conditioner |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112539571A (en) * | 2020-12-23 | 2021-03-23 | 华北电力大学 | Large-temperature-rise super heat pump heat exchange device and heat exchange method thereof |
| CN112539573A (en) * | 2020-12-23 | 2021-03-23 | 华北电力大学 | Efficient super heat pump heat exchange device and heat exchange method |
| CN112539573B (en) * | 2020-12-23 | 2024-04-09 | 华北电力大学 | Efficient heat exchange device and heat exchange method for super heat pump |
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