CN212390644U - Air source super heat pump for extracting heat from air - Google Patents
Air source super heat pump for extracting heat from air Download PDFInfo
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- CN212390644U CN212390644U CN202020748923.6U CN202020748923U CN212390644U CN 212390644 U CN212390644 U CN 212390644U CN 202020748923 U CN202020748923 U CN 202020748923U CN 212390644 U CN212390644 U CN 212390644U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/27—Relating to heating, ventilation or air conditioning [HVAC] technologies
- Y02A30/274—Relating to heating, ventilation or air conditioning [HVAC] technologies using waste energy, e.g. from internal combustion engine
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Abstract
The utility model discloses an air source super heat pump for extracting heat from air, which belongs to the technical field of energy utilization, and comprises a regenerator, a condenser, an absorber, a heat exchanger, an energy tower, a compressor, a circulating pump, a valve and a driving heat source; the internal circulating working medium adopts working medium A, working medium B, working medium C and working medium D; the driving heat source is hot water, steam or flue gas. The air source super heat pump adopts a heat pump unit which can prepare hot water or cold water by air to extract or release heat from the air through a regeneration process, an absorption process and a compression process so as to realize the purpose of heating or refrigerating in a large temperature range, wherein the single heating capacity is 1-30 MW, and three operation modes are adopted to meet the heating or refrigerating requirements.
Description
The utility model belongs to the technical field of the energy utilization, especially, relate to a draw super heat pump in thermal air source in follow air.
Background
The air source heat pump can extract heat from outdoor low-temperature air to supply heat to a room, and 1 part of electricity can generate more than 1 part of heat due to the fact that COP (coefficient of performance) of the air source heat pump is larger than 1, so that the air source heat pump has obvious performance advantages compared with an electric boiler and the like. However, the air heat exchanger is limited by the structural type of the air heat exchanger and the capacity of the compressor, the heating capacity of a single air energy heat pump is small, the number of devices required in the occasion with large heating capacity is large, when heat is extracted from air in winter to prepare hot water, when the temperature of outdoor air is lower than 0 ℃, the problem of surface frost on the surface of a surface cooler is a technical problem which troubles the normal operation of the surface cooler. In addition, for the current technology of the large-scale air source heat pump, a cooling tower or an energy tower is adopted as a cold source, when the cooling tower or the energy tower is adopted, intermediate circulating water is required to be adopted as a heat exchange medium, and as the circulating water is required to extract heat from air firstly, and then the air source heat pump is utilized to extract heat from the circulating water, the evaporation temperature of the air source heat pump is much lower than the air temperature in two heat exchange processes, and further the performance of the air source heat pump is reduced.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing an air source super heat pump for extracting heat from air aiming at the defects of the prior art, which is characterized in that the air source super heat pump comprises a regenerator, a condenser, an absorber, a heat exchanger, an energy tower, a compressor, a circulating pump, a valve and a driving heat source; the regenerator 1 is connected with a driving heat source inlet 19, a driving heat source outlet 26, a C heat exchanger 11 and an A compressor 7, the A compressor 7 is connected with a condenser 2, and the condenser 2 is connected with an absorber 3, an A valve 12, an H valve 20 and a B valve 13; the heat exchanger C11 is connected with the circulating pump A9 and the absorber 3, and the absorber 3 is connected with the valve I21, the circulating pump C23, the circulating pump A9, the heat exchanger C11, the heat exchanger A4 and the condenser 2; the A heat exchanger 4 is connected with the A valve 12, the B compressor 8 and the G valve 18, and the B compressor 8 is connected with the C valve 14 and the B heat exchanger 5; the heat exchanger B5 is connected with a valve C14, a valve G18, a valve D15, a valve E16, a valve F17, a cold water inlet 24 and a cold water outlet 25; the energy tower 6 is connected with a valve B13, a valve C14, a circulating pump B10, a valve F17, a valve D15 and a circulating pump C23; the A valve 12 is connected with the condenser 2, the H valve 20 is connected with a hot water outlet 22, the condenser 2 is connected with a B valve 13, the B valve 13 is connected with the condenser 2, a C valve 14 and a B circulating pump 10, a G valve 18 is connected with an A heat exchanger 4, a D valve 15 and a B heat exchanger 5, the D valve 15 is connected with a C circulating pump 23 and an F valve 17, an E valve 16 is connected with the B circulating pump 10, the F valve 17 is connected with the D valve 15 and the C circulating pump 23, the C circulating pump 23 is connected with an I valve 21, an absorber 3, the D valve 15, the F valve 17 and an energy tower 6, the B circulating pump 10 is connected with the E valve 16, the B valve 13 and the C valve 14, the H valve 20 is connected with the hot water outlet 22 and the B valve 13, the I valve 21 is connected with a working medium inlet 27, the absorber 3 and the C circulating pump 23, and the working medium; the driving heat source is hot water, steam or flue gas.
The energy tower is a heat source tower or a surface cooler.
The internal circulating working medium comprises a working medium A, a working medium B, a working medium C and a working medium D; wherein, the working medium A is methyl pyrrolidone or freon; working medium B is ammonia, difluoroethanol, freon or water; the working medium C is Freon or carbon dioxide; the working medium D is water or glycol.
The utility model has the advantages that the air source super heat pump adopts the heat pump unit which can produce hot water or cold water by air to extract or release heat from the air so as to realize the purpose of large-scale heating or refrigeration, compared with the prior art, the air source super heat pump obviously improves the heating and refrigeration power of a single unit, and the heating capacity of the single unit is 1-30 MW; and no frosting problem; heating or cooling temperature is adjusted in various driving heat sources and various operation modes; the energy tower circulating medium switching can be carried out, and the purpose of keeping higher heat pump performance coefficient when the air temperature changes in a large range can be realized, so that the requirement of large-range heating or refrigerating can be met.
Drawings
FIG. 1 is a diagram of an air-source super heat pump system.
Detailed Description
The utility model provides a follow and draw thermal air source super heat pump in the air, it is right below to combine figure and embodiment the utility model discloses explain further.
FIG. 1 is a schematic diagram of an air source super heat pump system including a regenerator, a condenser, an absorber, a heat exchanger, an energy tower, a compressor, a circulation pump, a valve, and a driving heat source; the regenerator 1 is connected with a driving heat source inlet 19, a driving heat source outlet 26, a C heat exchanger 11 and an A compressor 7, the A compressor 7 is connected with a condenser 2, and the condenser 2 is connected with an absorber 3, an A valve 12, an H valve 20 and a B valve 13; the heat exchanger C11 is connected with the circulating pump A9 and the absorber 3, and the absorber 3 is connected with the valve I21, the circulating pump C23, the circulating pump A9, the heat exchanger C11, the heat exchanger A4 and the condenser 2; the A heat exchanger 4 is connected with the A valve 12, the B compressor 8 and the G valve 18, and the B compressor 8 is connected with the C valve 14 and the B heat exchanger 5; the heat exchanger B5 is connected with a valve C14, a valve G18, a valve D15, a valve E16, a valve F17, a cold water inlet 24 and a cold water outlet 25; the energy tower 6 is connected with a valve B13, a valve C14, a circulating pump B10, a valve F17, a valve D15 and a circulating pump C23; the A valve 12 is connected with the condenser 2, the H valve 20 is connected with a hot water outlet 22, the condenser 2 is connected with a B valve 13, the B valve 13 is connected with the condenser 2, a C valve 14 and a B circulating pump 10, a G valve 18 is connected with an A heat exchanger 4, a D valve 15 and a B heat exchanger 5, the D valve 15 is connected with a C circulating pump 23 and an F valve 17, an E valve 16 is connected with the B circulating pump 10, the F valve 17 is connected with the D valve 15 and the C circulating pump 23, the C circulating pump 23 is connected with an I valve 21, an absorber 3, the D valve 15, the F valve 17 and an energy tower 6, the B circulating pump 10 is connected with the E valve 16, the B valve 13 and the C valve 14, the H valve 20 is connected with the hot water outlet 22 and the B valve 13, the I valve 21 is connected with a working medium inlet 27, the absorber 3 and the C circulating pump 23, and the working medium; the driving heat source is hot water, steam or flue gas. The energy tower is a heat source tower or a surface cooler; wherein, the working medium A is methyl pyrrolidone or freon; working medium B is ammonia, difluoroethanol, freon or water; the working medium C is Freon or carbon dioxide; the working medium D is water or glycol.
Examples
The air source super heat pump in the embodiment adopts the following three operation modes to extract or release heat from air so as to meet the heating or refrigerating requirements: in the embodiment, the internal circulating working medium is methyl pyrrolidone serving as a working medium A, difluoroethanol serving as a working medium B, carbon dioxide serving as a working medium C and ethylene glycol serving as a working medium D, and the driving heat source is water vapor generated by a steam boiler.
One, heating and cooling simultaneously:
in the operation mode, the valve B13, the valve C14, the valve D15 and the circulating pump C23 are closed, the valve I21, the valve H20, the valve A12, the valve E16, the valve F17 and the circulating pump B10 are opened, the compressor A7 and the compressor B8 are opened, and hot water sequentially passes through the hot water inlet 27, the absorber 3, the condenser 2 and the hot water outlet 22; cold water sequentially passes through a cold water inlet 24, the heat exchanger B5 and a cold water outlet 25; the mixed working medium of methyl pyrrolidone (A working medium) and (B working medium) circulates through a C heat exchanger 11, an absorber 3, an A circulating pump 9 and a regenerator 1 in sequence; difluoroethanol sequentially passes through a compressor A7, a condenser 2, a valve A12, a heat exchanger A4 and an absorber 3; carbon dioxide (working medium C) circulates through a compressor B8, a heat exchanger A4, a valve G18 and a heat exchanger B5 in sequence; the working medium D circulates through a circulation pump B10, an E valve 16, a heat exchanger B5, an F valve 17 and an energy tower 6 in sequence; the principle of the operation mode is as follows: the method comprises the steps of taking water vapor generated by a vapor boiler as a driving heat source, heating mixed working medium of methyl pyrrolidone and difluoroethanol in a regenerator 1, condensing the gaseous difluoroethanol in a condenser to release heat to heat hot water after the boiling point of the difluoroethanol is lower than that of the methyl pyrrolidone, enabling the difluoroethanol to be heated into a gaseous state after the difluoroethanol is compressed by an A compressor 7, enabling the temperature and the pressure of the liquid difluoroethanol to be reduced after the difluoroethanol passes through an A valve 12, completing the heat exchange process of difluoroethanol evaporation and carbon dioxide condensation by an A heat exchanger 4, enabling the gaseous difluoroethanol to enter an absorber 3 to be absorbed by the mixed working medium of methyl pyrrolidone and difluoroethanol, enabling the absorption heat generated in the absorption process to be used for heating the hot water, enabling the carbon dioxide to pass through a G valve 18 after leaving the A heat exchanger 4, completing the evaporation and heat absorption process of the carbon dioxide in a B heat exchanger 5, and simultaneously, the glycol extracts the heat of the air in the energy tower 6 to complete the temperature rise process;
secondly, only heating mode:
in the operation mode, the valve B13, the valve E16, the valve F17, the circulating pump B10 and the circulating pump C23 are closed, the valve I21, the valve H20, the valve A12, the valve C14 and the valve D15 are opened, and the compressor A7 and the compressor B8 are opened; the hot water passes through the hot water inlet 27, the absorber 3, the condenser 2 and the hot water outlet 22 in sequence; the mixed working medium of methyl pyrrolidone and difluoroethanol circulates through a heat exchanger C11, an absorber 3, a circulating pump A9 and a regenerator 1 in sequence; difluoroethanol passes through A compressor 7, condenser 2, A valve 12, A heat exchanger 4 and absorber 3 in proper order, and carbon dioxide passes through B compressor 8, A heat exchanger 4, G valve 18, D valve 15, energy tower 6 and C valve 14 in proper order and circulates, and this operation mode principle is: the heat source is driven to heat the mixed working medium of the methyl pyrrolidone and the difluoroethanol in the regenerator 1, and as the boiling point of the difluoroethanol is lower than that of the methyl pyrrolidone, gaseous difluoroethanol is generated in the heating process, the gaseous difluoroethanol is condensed in the condenser 2 after being compressed by the A compressor 7 to release heat to heat hot water, the temperature and the pressure of the liquid difluoroethanol are reduced after passing through the A valve 12, the A heat exchanger 4 finishes the heat exchange process of difluoroethanol evaporation and carbon dioxide condensation, the gaseous difluoroethanol enters the absorber 3 and is absorbed by the mixed working medium of methyl pyrrolidone and difluoroethanol, the absorption heat generated in the absorption process is used for heating hot water, the carbon dioxide enters the energy tower 6 after leaving the heat exchanger A4 through the G valve 18 and the D valve 15 to extract the heat of air to complete the vaporization process, and the gaseous carbon dioxide enters the compressor B8 after passing through the C valve 14 to be compressed and then enters the heat exchanger A4 to complete the condensation process;
third, only the refrigeration mode:
close I valve 21 under this operational mode, H valve 20, B valve 13, E valve 16, F valve 17, B circulating pump 10, C valve 14 and D valve 15, open C circulating pump 23 and A valve 12, open A compressor 7 and B compressor 8, ethylene glycol passes through energy tower 6 in proper order, B valve 13, condenser 2, absorber 3 and C circulating pump 23 circulate, cold water is cooled off in B heat exchanger 5, difluoroethanol passes through A compressor 7 in proper order, condenser 2, A valve 12, A heat exchanger 4 and absorber 3, carbon dioxide passes through B compressor 8 in proper order, A heat exchanger 4, G valve 18 and B heat exchanger 5 circulate, this operational mode principle is: a driving heat source heats a mixed working medium of methyl pyrrolidone and difluoroethanol in a regenerator 1, the boiling point of difluoroethanol is lower than that of methyl pyrrolidone, gaseous difluoroethanol is generated in the heating process, the gaseous difluoroethanol is compressed by an A compressor 7 and then condensed in a condenser 2 to release heat to heat ethylene glycol, the temperature and the pressure of the liquid difluoroethanol are reduced after passing through an A valve 12, a heat exchanger 4A completes the heat exchange process of difluoroethanol evaporation and carbon dioxide condensation, the gaseous difluoroethanol enters an absorber 3 and is absorbed by the mixed working medium of methyl pyrrolidone and difluoroethanol, the absorption heat generated in the absorption process is used for heating the evaporation process of ethylene glycol, and the gaseous carbon dioxide enters a compressor 8B to be compressed and then enters the A heat exchanger 4A to complete the condensation process.
In the running process, the hot water or cold water outlet temperature is controlled by adjusting and controlling the compression ratio of the compressor A7 and the compressor B8, the hot water outlet temperature is increased when the compression ratio of the compressor A7 is increased, the hot water outlet temperature is decreased when the compression ratio of the compressor A7 is decreased, the cold water outlet temperature is decreased when the compression ratio of the compressor B8 is increased, and the cold water outlet temperature is increased when the compression ratio of the compressor B8 is decreased.
If the compressor a7 and the compressor B8 are used simultaneously to compress difluoroethanol and carbon dioxide, respectively, the compressor a7 and the compressor B8 are driven electrically or mechanically.
Claims (3)
1. An air-source super heat pump for extracting heat from air, characterized by: the air source super heat pump comprises a regenerator (1), a condenser (2), an absorber (3), an A heat exchanger (4), a B heat exchanger (5), an energy tower (6), an A compressor (7), a B compressor (8), an A circulating pump (9), a B circulating pump (10), a C heat exchanger (11), an A valve (12), a B valve (13), a C valve (14), a D valve (15), an E valve (16), an F valve (17), a G valve (18), a driving heat source inlet (19), an H valve (20), an I valve (21), a hot water outlet (22), a C circulating pump (23), a cold water inlet (24), a cold water outlet (25), a driving heat source outlet (26) and a hot water inlet (27); the regenerator (1) is connected with a driving heat source inlet (19), a driving heat source outlet (26), a C heat exchanger (11) and an A compressor (7), the A compressor (7) is connected with a condenser (2), and the condenser (2) is connected with an absorber (3), an A valve (12), an H valve (20) and a B valve (13); the heat exchanger C (11) is connected with the circulating pump A (9) and the absorber (3), and the absorber (3) is connected with the valve I (21), the circulating pump C (23), the circulating pump A (9), the heat exchanger C (11), the heat exchanger A (4) and the condenser (2); the heat exchanger A (4) is connected with the valve A (12), the compressor B (8) and the valve G (18), and the compressor B (8) is connected with the valve C (14) and the heat exchanger B (5); the heat exchanger B (5) is connected with the valve C (14), the valve G (18), the valve D (15), the valve E (16), the valve F (17), the cold water inlet (24) and the cold water outlet (25); the energy tower (6) is connected with the valve B (13), the valve C (14), the circulating pump B (10), the valve F (17), the valve D (15) and the circulating pump C (23); a valve (12) is connected with a condenser (2), an H valve (20) is connected with a hot water outlet (22), the condenser (2) is connected with a B valve (13), the B valve (13) is connected with the condenser (2), a C valve (14) and a B circulating pump (10), a G valve (18) is connected with an A heat exchanger (4), a D valve (15) is connected with a B heat exchanger (5), a D valve (15) is connected with a C circulating pump (23) and an F valve (17), an E valve (16) is connected with the B circulating pump (10), an F valve (17) is connected with the D valve (15) and the C circulating pump (23), the C circulating pump (23) is connected with an I valve (21), an absorber (3), the D valve (15), the F valve (17) and an energy tower (6), the B circulating pump (10) is connected with the E valve (16), the B valve (13) and the C valve (14), the H valve (20) is connected with the hot water outlet (22) and the B valve (13), the I valve (21) is connected with a hot water inlet (27), an absorber (3) and a C circulating pump (23), and the internal circulating working media adopt a working medium A, a working medium B, a working medium C and a working medium D; the driving heat source is hot water, steam or flue gas.
2. An air-source super heat pump for extracting heat from air as claimed in claim 1 wherein: the energy tower is a heat source tower or a surface cooler.
3. An air-source super heat pump for extracting heat from air as claimed in claim 1 wherein: the internal circulating working medium comprises a working medium A, a working medium B, a working medium C and a working medium D; wherein, the working medium A is methyl pyrrolidone or freon; working medium B is ammonia, difluoroethanol, freon or water; the working medium C is Freon or carbon dioxide; the working medium D is water or glycol.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020748923.6U CN212390644U (en) | 2020-05-08 | 2020-05-08 | Air source super heat pump for extracting heat from air |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202020748923.6U CN212390644U (en) | 2020-05-08 | 2020-05-08 | Air source super heat pump for extracting heat from air |
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| CN212390644U true CN212390644U (en) | 2021-01-22 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111442553A (en) * | 2020-05-08 | 2020-07-24 | 华北电力大学 | Air source super heat pump and method for extracting heat by using same |
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2020
- 2020-05-08 CN CN202020748923.6U patent/CN212390644U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111442553A (en) * | 2020-05-08 | 2020-07-24 | 华北电力大学 | Air source super heat pump and method for extracting heat by using same |
| CN111442553B (en) * | 2020-05-08 | 2024-05-28 | 华北电力大学 | Air source heat pump and heat extraction method thereof |
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