CN112880240A - Multi-source multi-working-condition refrigerating system with low-grade energy preparation equipment - Google Patents
Multi-source multi-working-condition refrigerating system with low-grade energy preparation equipment Download PDFInfo
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- CN112880240A CN112880240A CN202110132303.9A CN202110132303A CN112880240A CN 112880240 A CN112880240 A CN 112880240A CN 202110132303 A CN202110132303 A CN 202110132303A CN 112880240 A CN112880240 A CN 112880240A
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- 238000002360 preparation method Methods 0.000 title claims abstract description 16
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 42
- 239000003507 refrigerant Substances 0.000 claims abstract description 41
- 239000007788 liquid Substances 0.000 claims abstract description 38
- 238000005057 refrigeration Methods 0.000 claims abstract description 24
- 238000010438 heat treatment Methods 0.000 claims description 18
- 238000004519 manufacturing process Methods 0.000 claims description 15
- 238000001816 cooling Methods 0.000 claims description 12
- 239000002352 surface water Substances 0.000 claims description 6
- 238000010257 thawing Methods 0.000 claims description 6
- 239000002689 soil Substances 0.000 abstract description 6
- 239000003570 air Substances 0.000 abstract description 4
- 238000004378 air conditioning Methods 0.000 description 6
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
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Classifications
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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
- F25B30/06—Heat pumps characterised by the source of low potential heat
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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
- F25B47/00—Arrangements for preventing or removing deposits or corrosion, not provided for in another subclass
- F25B47/02—Defrosting cycles
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Other Air-Conditioning Systems (AREA)
Abstract
The invention discloses a multi-source multi-working-condition refrigeration system with low-grade energy preparation equipment, which comprises a compressor, a four-way reversing valve, a fin heat exchanger, a plate heat exchanger, a shell and tube heat exchanger, a throttle valve, a liquid storage device, a vapor-liquid separator, a first electromagnetic valve, a second electromagnetic valve, a third electromagnetic valve, a fourth electromagnetic valve, a fifth electromagnetic valve, a first one-way valve, a second one-way valve and a third one-way valve, and also comprises low-grade energy preparation equipment; the liquid refrigerant of the refrigerant circulation loop of each operating condition of the multi-source multi-condition refrigeration system with the low-grade energy preparation equipment flows into the throttle valve through the liquid storage device, so that the low-grade energy preparation equipment can collect and convert low-grade heat energy stored in soil, air or water into a high-grade heat source through the multi-source multi-condition refrigeration system for daily life of people, and the low-grade multi-condition refrigeration system is a reliable multi-functional refrigeration system.
Description
Technical Field
The invention relates to the field of refrigeration air conditioners, in particular to a multi-source multi-working-condition refrigeration system with low-grade energy preparation equipment.
Background
Solar radiation gives light and heat to the earth all the time, and the light and heat are stored in the form of low-grade heat energy in soil, air and water. And the low-grade heat energy is rarely and directly applied to daily production and life of people, so that exploitation and utilization of most of the low-grade heat energy stored in soil, air and water become problems to be solved urgently.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provides a multi-source multi-working-condition refrigerating system with low-grade energy preparation equipment, which collects and converts low-grade heat energy stored in soil, air and water into a high-grade heat source for daily life of people by utilizing a refrigerating principle.
A multi-source multi-working-condition refrigeration system with low-grade energy preparation equipment comprises a compressor, a four-way reversing valve, a fin heat exchanger, a plate heat exchanger, a shell and tube heat exchanger, a throttling valve, a liquid storage device, a vapor-liquid separator, a first electromagnetic valve, a second electromagnetic valve, a third electromagnetic valve, a fourth electromagnetic valve, a fifth electromagnetic valve, a first one-way valve, a second one-way valve and a third one-way valve, wherein the low-grade energy preparation equipment comprises a solar heat collector, a surface water heat exchanger, a buried pipe heat exchanger or a cooling tower, and the plate heat exchanger is communicated with the low-grade energy preparation equipment to form a heat exchange loop; the liquid refrigerant of the refrigerant circulation circuit flows into the throttle valve through the accumulator.
Preferably, the low-grade energy production equipment further comprises a water pump, and one end of the water pump is connected with the plate heat exchanger to form a heat exchange loop.
Preferably, one end of the solar heat collector is connected with a water tank, and the other end of the water tank is connected with the plate heat exchanger to form a heat exchange loop.
Preferably, the operation working conditions comprise a water cooling cold water working condition in summer, an air cooling cold water working condition in summer, a water source heat pump heating working condition in winter, an air source heat pump heating working condition in winter and a defrosting working condition.
Preferably, when the operation working condition is a water-cooling cold water working condition in summer, the compressor, the four-way reversing valve, the first electromagnetic valve, the plate heat exchanger, the first check valve, the reservoir, the throttle valve, the fifth electromagnetic valve, the shell and tube heat exchanger, the four-way reversing valve, the vapor-liquid separator and the compressor are sequentially connected to form a refrigerant circulation loop.
Preferably, when the operation working condition is a summer air-cooled cold water working condition, the compressor, the four-way reversing valve, the second electromagnetic valve, the fin heat exchanger, the second one-way valve, the reservoir, the throttle valve, the fifth electromagnetic valve, the shell and tube heat exchanger, the four-way reversing valve, the vapor-liquid separator and the compressor are sequentially connected to form a refrigerant circulation loop.
Preferably, the operation working condition is a water source heat pump heating working condition in winter, and the compressor, the four-way reversing valve, the shell and tube heat exchanger, the third check valve, the reservoir, the throttle valve, the third electromagnetic valve, the plate heat exchanger, the first electromagnetic valve, the four-way reversing valve, the vapor-liquid separator and the compressor are sequentially connected to form a refrigerant circulation loop.
Preferably, the operation working condition is the air source heat pump heating working condition in winter, and the compressor, the four-way reversing valve, the shell and tube heat exchanger, the third one-way valve, the reservoir, the throttle valve, the fourth electromagnetic valve, the fin heat exchanger, the second electromagnetic valve, the four-way reversing valve, the vapor-liquid separator and the compressor are sequentially connected to form a refrigerant circulation loop.
Preferably, when the operation condition is a defrosting condition, the compressor, the four-way reversing valve, the second electromagnetic valve, the fin heat exchanger, the second one-way valve, the reservoir, the throttle valve, the fifth electromagnetic valve, the shell and tube heat exchanger, the four-way reversing valve, the vapor-liquid separator and the compressor are sequentially connected to form a refrigerant circulation loop.
The invention has the beneficial effects that:
the low-grade heat energy stored in water and air can be used for refrigerating in summer and heating in winter of the air conditioning unit through the surface water heat exchanger or the solar heat collector; the low-grade heat energy stored in the soil can be used for refrigerating in summer and heating in winter of the air conditioning unit through the ground heat exchanger.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings according to the provided drawings without creative efforts.
The invention will be further described with reference to the accompanying drawings.
Fig. 1 is a schematic view of a multi-source multi-operating-condition refrigeration system with low-grade energy production equipment provided in embodiment 1 of the present invention.
Fig. 2 is a schematic view of a multi-source multi-operating-condition refrigeration system with low-grade energy production equipment according to embodiment 2 of the present invention.
In the figure: 10. a compressor; 20. a plate heat exchanger; 30. a first solenoid valve; 40. a second solenoid valve; 50. a finned heat exchanger; 60. a fourth solenoid valve; 70. a third electromagnetic valve; 80. a second one-way valve; 90. a first check valve; 100. a third check valve; 110. a reservoir; 120. a throttle valve; 130. a fifth solenoid valve; 140. a shell and tube heat exchanger; 150. a four-way reversing valve; 160. a vapor-liquid separator; 210. a water pump; 220. a surface water heat exchanger; 230. a solar heat collector; 240. a water tank.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. 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.
For better understanding of the technical solutions of the present invention, the following detailed descriptions of the embodiments of the present invention are provided with reference to the accompanying drawings. It should be understood that the following examples are illustrative of the present invention and are not intended to limit the scope of the present invention.
The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the singular form of "the" is intended to include the plural form as well, unless the context clearly indicates otherwise; as used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
Example 1
Referring to fig. 1, the multi-source multi-operating-condition refrigeration system with low-grade energy preparation equipment according to the embodiment includes a compressor 10, a four-way reversing valve 150, a fin heat exchanger 50, a plate heat exchanger 20, a shell and tube heat exchanger 140, a throttle valve 120, a reservoir 110, a vapor-liquid separator 160, a first electromagnetic valve 30, a second electromagnetic valve 40, a third electromagnetic valve 70, a fourth electromagnetic valve 60, a fifth electromagnetic valve 130, a first check valve 90, a second check valve 80, a third check valve 100, a water pump 210 used in the low-grade energy preparation equipment, and a surface water heat exchanger 220. In the embodiment, liquid refrigerant of the refrigerant circulation circuit in each operation condition flows into the throttle valve 120 through the accumulator 110, the accumulator 110 can be used for storing the refrigerant, and the refrigerant circulation amount in the whole system can be stably controlled through the accumulator 110 and the throttle valve 120. The shell and tube heat exchanger 140 is connected to the use side.
The refrigerant circulation loop corresponding to each operation condition is as follows:
firstly, the refrigerant circulation loop of water-cooling cold water operating mode in summer: compressor 10 → four-way selector valve 150 → first solenoid valve 30 → plate heat exchanger 20 → first check valve 90 → accumulator 110 → throttle valve 120 → fifth solenoid valve 130 → shell and tube heat exchanger 140 → four-way selector valve 150 → vapor-liquid separator 160 → compressor 10. At this time, the second solenoid valve 40, the third solenoid valve 70, and the fourth solenoid valve 60 are closed, and the first solenoid valve 30 and the fifth solenoid valve 130 are opened.
Secondly, a refrigerant circulation loop of air-cooled cold water working condition in summer: compressor 10 → four-way selector valve 150 → second solenoid valve 40 → finned heat exchanger 50 → second check valve 80 → accumulator 110 → throttle valve 120 → fifth solenoid valve 130 → shell and tube heat exchanger 140 → four-way selector valve 150 → vapor-liquid separator 160 → compressor 10. At this time, the first solenoid valve 30, the third solenoid valve 70, and the fourth solenoid valve 60 are closed, and the second solenoid valve 40 and the fifth solenoid valve 130 are opened.
Thirdly, a refrigerant circulation loop of the water source heat pump in winter under the heating working condition: compressor 10 → four-way selector valve 150 → shell and tube heat exchanger 140 → third check valve 100 → accumulator 110 → throttle valve 120 → third solenoid valve 70 → plate heat exchanger 20 → first solenoid valve 30 → four-way selector valve 150 → vapor-liquid separator 160 → compressor 10. At this time, the second solenoid valve 40, the fifth solenoid valve 130, and the fourth solenoid valve 60 are closed, and the third solenoid valve 70 and the first solenoid valve 30 are opened.
Fourthly, a refrigerant circulation loop of the air source heat pump in winter under the heating condition: compressor 10 → four-way selector valve 150 → shell and tube heat exchanger 140 → third check valve 100 → accumulator 110 → throttle valve 120 → fourth solenoid valve 60 → finned heat exchanger 50 → second solenoid valve 40 → four-way selector valve 150 → vapor-liquid separator 160 → compressor 10. At this time, the fifth solenoid valve 130, the first solenoid valve 30, and the third solenoid valve 70 are closed, and the fourth solenoid valve 60 and the second solenoid valve 40 are opened.
Fifthly, a refrigerant circulation loop under a defrosting condition: compressor 10 → four-way selector valve 150 → second solenoid valve 40 → finned heat exchanger 50 → second check valve 80 → accumulator 110 → throttle valve 120 → fifth solenoid valve 130 → shell and tube heat exchanger 140 → four-way selector valve 150 → vapor-liquid separator 160 → compressor 10. At this time, the fourth solenoid valve 60, the third solenoid valve 70, and the first solenoid valve 30 are closed, and the second solenoid valve 40 and the fifth solenoid valve 130 are opened.
The liquid refrigerant of the refrigerant circulation circuit corresponding to each operation condition flows into the throttle valve 120 through the liquid storage device 110, so that the refrigerant circulation amount during operation of each operation condition is balanced, and low-grade energy stored in rivers or air is used for cooling in summer or heating in winter of the air conditioning unit.
Example 2
Referring to fig. 2, the difference between the multi-source multi-operating-condition refrigeration system with low-grade energy production equipment provided in this embodiment and embodiment 1 is that a water pump 210, a solar heat collector 230 and a water tank 240 are used in the low-grade energy production equipment, two ends of the solar heat collector 230 are respectively connected to the water pump 210 and the water tank 240, and the plate heat exchanger 20 is respectively connected to the water pump 210 and the water tank 240. In the present embodiment, the liquid refrigerant of the refrigerant circulation circuit in each operation mode flows through the accumulator 110 and then flows into the throttle valve 120, and the refrigerant circulation amount in the whole system can be stably controlled through the accumulator 110 and the throttle valve 120.
The refrigerant circulation loop corresponding to each operation condition is as follows:
firstly, the refrigerant circulation loop of water-cooling cold water operating mode in summer: compressor 10 → four-way selector valve 150 → first solenoid valve 30 → plate heat exchanger 20 → first check valve 90 → accumulator 110 → throttle valve 120 → fifth solenoid valve 130 → shell and tube heat exchanger 140 → four-way selector valve 150 → vapor-liquid separator 160 → compressor 10.
Secondly, a refrigerant circulation loop of air-cooled cold water working condition in summer: compressor 10 → four-way selector valve 150 → second solenoid valve 40 → finned heat exchanger 50 → second check valve 80 → accumulator 110 → throttle valve 120 → fifth solenoid valve 130 → shell and tube heat exchanger 140 → four-way selector valve 150 → vapor-liquid separator 160 → compressor 10.
Thirdly, a refrigerant circulation loop of the water source heat pump in winter under the heating working condition: compressor 10 → four-way selector valve 150 → shell and tube heat exchanger 140 → third check valve 100 → accumulator 110 → throttle valve 120 → third solenoid valve 70 → plate heat exchanger 20 → first solenoid valve 30 → four-way selector valve 150 → vapor-liquid separator 160 → compressor 10.
Fourthly, a refrigerant circulation loop of the air source heat pump in winter under the heating condition: compressor 10 → four-way selector valve 150 → shell and tube heat exchanger 140 → third check valve 100 → accumulator 110 → throttle valve 120 → fourth solenoid valve 60 → finned heat exchanger 50 → second solenoid valve 40 → four-way selector valve 150 → vapor-liquid separator 160 → compressor 10.
Fifthly, a refrigerant circulation loop under a defrosting condition: compressor 10 → four-way selector valve 150 → second solenoid valve 40 → finned heat exchanger 50 → second check valve 80 → accumulator 110 → throttle valve 120 → fifth solenoid valve 130 → shell and tube heat exchanger 140 → four-way selector valve 150 → vapor-liquid separator 160 → compressor 10.
The liquid refrigerant of the refrigerant circulation loop corresponding to each operation condition flows into the throttle valve 120 through the liquid reservoir 110, so that the refrigerant circulation amount during operation of each operation condition is balanced, and solar energy or air energy is used for cooling in summer or heating in winter of the air conditioning unit.
As can be seen from the embodiments 1 and 2, the multi-source multi-operating-condition refrigeration system with the low-grade energy production equipment, the surface water heat exchanger 220 or the solar heat collector 230 can use the low-grade heat energy stored in water and air for summer refrigeration and winter heating of the air conditioning unit by five operating conditions of the multi-source multi-operating-condition refrigeration system; the low-grade heat energy stored in the soil can be used for refrigerating in summer and heating in winter of the air conditioning unit through the ground heat exchanger.
The above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and substitutions can be made without departing from the technical principle of the present invention, and these modifications and substitutions should also be regarded as the protection scope of the present invention.
While there have been shown and described what are at present considered the fundamental principles and essential features of the invention and its advantages, it will be apparent to those skilled in the art that the invention is not limited to the details of the foregoing exemplary embodiments, but is capable of other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (9)
1. The multi-source multi-working-condition refrigeration system with the low-grade energy preparation equipment is characterized by comprising a compressor (10), a four-way reversing valve (150), a fin heat exchanger (50), a plate heat exchanger (20), a shell and tube heat exchanger (140), a throttle valve (120), a liquid storage device (110), a vapor-liquid separator (160), a first electromagnetic valve (30), a second electromagnetic valve (40), a third electromagnetic valve (70), a fourth electromagnetic valve (60), a fifth electromagnetic valve (130), a first one-way valve (90), a second one-way valve (80) and a third one-way valve (100), wherein the low-grade energy preparation equipment comprises a solar heat collector (230) or a surface water heat exchanger (220) or a buried tube heat exchanger or a cooling tower, and the plate heat exchanger (20) is communicated with the low-grade energy preparation equipment to form a heat exchange loop; liquid refrigerant of the refrigerant circulation circuit flows into the throttle valve (120) through the accumulator (110).
2. The multi-source multi-working-condition refrigeration system with the low-grade energy production equipment is characterized by further comprising a water pump (210), wherein one end of the water pump (210) is connected with the plate heat exchanger (20) to form a heat exchange loop.
3. The multi-source multi-working-condition refrigeration system with the low-grade energy production equipment is characterized in that one end of the solar heat exchanger (230) is connected with a water tank (240), and the other end of the water tank (240) is connected with the plate heat exchanger (20) to form a heat exchange loop.
4. The multi-source multi-operating-condition refrigeration system with low-grade energy production equipment according to any one of claims 1 to 3, wherein the operation conditions comprise a summer water-cooling cold water condition, a summer air-cooling cold water condition, a winter water source heat pump heating condition, a winter air source heat pump heating condition and a defrosting condition.
5. The multi-source multi-working-condition refrigeration system with the low-grade energy production equipment is characterized in that when the operation working condition is a water-cooling cold water working condition in summer, the compressor (10), the four-way reversing valve (150), the first electromagnetic valve (30), the plate heat exchanger (20), the first check valve (90), the reservoir (110), the throttle valve (120), the fifth electromagnetic valve (130), the shell and tube heat exchanger (140), the four-way reversing valve (150), the vapor-liquid separator (160) and the compressor (10) are sequentially connected to form a refrigerant circulation loop.
6. The multi-source multi-working-condition refrigeration system with the low-grade energy production equipment is characterized in that when the operation working condition is a summer air-cooled cold water working condition, the compressor (10), the four-way reversing valve (150), the second electromagnetic valve (40), the fin heat exchanger (50), the second check valve (80), the reservoir (110), the throttle valve (120), the fifth electromagnetic valve (130), the shell and tube heat exchanger (140), the four-way reversing valve (150), the vapor-liquid separator (160) and the compressor (10) are sequentially connected to form a refrigerant circulation loop.
7. The multi-source multi-working-condition refrigeration system with the low-grade energy production equipment according to claim 4, wherein when the operation working condition is a water source heat pump heating working condition in winter, the compressor (10), the four-way reversing valve (150), the shell-and-tube heat exchanger (140), the third check valve (100), the reservoir (110), the throttle valve (120), the third electromagnetic valve (70), the plate heat exchanger (20), the first electromagnetic valve (30), the four-way reversing valve (150), the vapor-liquid separator (160) and the compressor (10) are sequentially connected to form a refrigerant circulation loop.
8. The multi-source multi-working-condition refrigeration system with the low-grade energy production equipment according to claim 4, wherein when the operation working condition is the air source heat pump heating working condition in winter, the compressor (10), the four-way reversing valve (150), the shell-and-tube heat exchanger (140), the third check valve (100), the reservoir (110), the throttle valve (120), the fourth electromagnetic valve (60), the fin heat exchanger (50), the second electromagnetic valve (40), the four-way reversing valve (150), the vapor-liquid separator (160) and the compressor (10) are sequentially connected to form a refrigerant circulation loop.
9. The multi-source multi-working-condition refrigeration system with the low-grade energy production equipment according to claim 4, wherein when the operation working condition is a defrosting working condition, the compressor (10), the four-way reversing valve (150), the second electromagnetic valve (40), the fin heat exchanger (50), the second check valve (80), the reservoir (110), the throttle valve (120), the fifth electromagnetic valve (130), the shell and tube heat exchanger (140), the four-way reversing valve (150), the vapor-liquid separator (160) and the compressor (10) are sequentially connected to form a refrigerant circulation loop.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110132303.9A CN112880240A (en) | 2021-01-31 | 2021-01-31 | Multi-source multi-working-condition refrigerating system with low-grade energy preparation equipment |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110132303.9A CN112880240A (en) | 2021-01-31 | 2021-01-31 | Multi-source multi-working-condition refrigerating system with low-grade energy preparation equipment |
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| CN202083060U (en) * | 2011-05-18 | 2011-12-21 | 巢民强 | Split water/ground energy heat pump unit |
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| CN109612147A (en) * | 2018-11-19 | 2019-04-12 | 江苏科技大学 | A kind of double-source type commercial air conditioner and working method |
| KR101980159B1 (en) * | 2018-12-04 | 2019-05-20 | (주)유천써모텍 | Heat source switching system of a complex heat source heat pump |
| CN108644942B (en) * | 2018-05-14 | 2020-07-14 | 东南大学 | Multi-source complementary distributed heat source tower heat pump system |
| CN109469990B (en) * | 2018-10-08 | 2020-12-08 | 东南大学 | Air source heat pump with separation type defrosting device based on super-hydrophobic fin heat exchanger and working method thereof |
-
2021
- 2021-01-31 CN CN202110132303.9A patent/CN112880240A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202083060U (en) * | 2011-05-18 | 2011-12-21 | 巢民强 | Split water/ground energy heat pump unit |
| CN106642789A (en) * | 2016-11-28 | 2017-05-10 | 东南大学 | Heat-source tower heat pump system capable of realizing comprehensive utilization of solar energy and seasonal energy storage in soil |
| CN108644942B (en) * | 2018-05-14 | 2020-07-14 | 东南大学 | Multi-source complementary distributed heat source tower heat pump system |
| CN109469990B (en) * | 2018-10-08 | 2020-12-08 | 东南大学 | Air source heat pump with separation type defrosting device based on super-hydrophobic fin heat exchanger and working method thereof |
| CN109612147A (en) * | 2018-11-19 | 2019-04-12 | 江苏科技大学 | A kind of double-source type commercial air conditioner and working method |
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Application publication date: 20210601 |