CN111288537B - Transcritical CO 2 Composite heat pump system - Google Patents
Transcritical CO 2 Composite heat pump system Download PDFInfo
- Publication number
- CN111288537B CN111288537B CN201911306926.2A CN201911306926A CN111288537B CN 111288537 B CN111288537 B CN 111288537B CN 201911306926 A CN201911306926 A CN 201911306926A CN 111288537 B CN111288537 B CN 111288537B
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- China
- Prior art keywords
- water
- heat pump
- pump system
- water tank
- pipe
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 239000002131 composite material Substances 0.000 title abstract description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 128
- 238000005192 partition Methods 0.000 claims description 4
- 150000001875 compounds Chemical class 0.000 claims description 3
- 239000007788 liquid Substances 0.000 claims description 3
- 238000010438 heat treatment Methods 0.000 description 5
- 239000003507 refrigerant Substances 0.000 description 5
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 230000003020 moisturizing effect Effects 0.000 description 2
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 description 1
- 230000002238 attenuated effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 229910052731 fluorine Inorganic materials 0.000 description 1
- 239000011737 fluorine Substances 0.000 description 1
- 239000008236 heating water Substances 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 231100000252 nontoxic Toxicity 0.000 description 1
- 230000003000 nontoxic effect Effects 0.000 description 1
- 238000005057 refrigeration Methods 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
- F24D15/00—Other domestic- or space-heating systems
- F24D15/04—Other domestic- or space-heating systems using heat pumps
-
- 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
- F25B41/00—Fluid-circulation arrangements
-
- 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
- F25B9/00—Compression machines, plants or systems, in which the refrigerant is air or other gas of low boiling point
- F25B9/002—Compression machines, plants or systems, in which the refrigerant is air or other gas of low boiling point characterised by the refrigerant
- F25B9/008—Compression machines, plants or systems, in which the refrigerant is air or other gas of low boiling point characterised by the refrigerant the refrigerant being carbon dioxide
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
- F24D2200/00—Heat sources or energy sources
- F24D2200/12—Heat pump
- F24D2200/123—Compression type heat pumps
-
- 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
- F25B2309/00—Gas cycle refrigeration machines
- F25B2309/06—Compression machines, plants or systems characterised by the refrigerant being carbon dioxide
- F25B2309/061—Compression machines, plants or systems characterised by the refrigerant being carbon dioxide with cycle highest pressure above the supercritical pressure
Landscapes
- 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)
- Chemical Kinetics & Catalysis (AREA)
- Heat-Pump Type And Storage Water Heaters (AREA)
Abstract
The invention relates to a trans-critical CO 2 A composite heat pump system comprises a first water tank and CO 2 Heat pump system, second water tank, auxiliary heat pump system and heat exchanger, the CO 2 The water generated by the heat pump system is injected into the first water tank through the water pipe, and the water in the first water tank enters CO 2 Before the heat pump system heats, heat exchange is carried out between the heat exchanger and water in the auxiliary heat pump system, and water generated by the auxiliary heat pump system is injected into the second water tank through the water pipe. CO of this patent 2 Maximizing efficiency by reducing the inlet water temperature of the gas cooler in the system, assisting the second evaporator in the heat pump system to drive CO 2 The inlet water of the gas cooler in the heat pump system is used as a cold source to fully utilize the products of the system, and the inlet water of the condenser exchanges heat with the heat exchanger, so that the water temperature entering the condenser is improved, the working efficiency is improved, and the CO is solved 2 The problem of low energy efficiency when the water inlet temperature of the system is high is conducive to further improving the efficiency and effectively saving energy.
Description
Technical Field
The invention relates to the technical field of refrigeration equipment, in particular to a transcritical CO 2 A composite heat pump system.
Background
At present, the air source heat pump is used as clean energy to replace part of traditional boiler heating, freon is generally used as refrigerant in the air source heat pump in the market, when the ambient temperature is lower than 0 ℃, the efficiency of the unit is greatly attenuated, and the highest water outlet temperature is generally between 40 and 55 ℃. Currently, there is still no ideal technology to achieve the efficiency decay problem in the air source heat pump field at low ambient temperatures. In this case, CO 2 (carbon dioxide) refrigerant is a desirable choice. CO 2 As natural working medium, the refrigerant is nontoxic and pollution-free, is the most environment-friendly refrigerant, and is safer and easier to obtain compared with fluorine refrigerant. Although CO 2 Heat pump systems have been increasingly accepted, but common CO 2 The heat pump unit has single function and is mainly used for heating.
Disclosure of Invention
The invention aims to provide a method for manufacturing a semiconductor deviceTranscritical CO 2 A composite heat pump system to solve the problems encountered in the background art described above.
In order to achieve the above purpose, the technical scheme of the invention is as follows:
transcritical CO 2 A composite heat pump system comprises a first water tank and CO 2 Heat pump system, second water tank, auxiliary heat pump system and heat exchanger, CO 2 The heat pump system comprises a first compressor, an oil separator, a gas cooler, a first electronic expansion valve, a first evaporator and a heat regenerator, wherein an output pipe of the first compressor is connected with a top air inlet pipe of the gas cooler through the oil separator, a bottom output pipe of the gas cooler is connected with a top air inlet pipe of the heat regenerator, a bottom water inlet pipe of the gas cooler is connected with a first water tank through a heat exchanger, water in a top water outlet pipe of the gas cooler is injected into the first water tank, a bottom air inlet pipe of the heat regenerator is connected with the first evaporator through the first electronic expansion valve, an outlet pipe of the first evaporator is connected with a bottom inlet pipe of the heat regenerator, a top air return pipe of the heat regenerator is connected with an air inlet pipe of the first compressor, and water generated by the auxiliary heat pump system is injected into a second water tank through a water pipe.
In the above scheme, auxiliary heat pump system includes second evaporimeter, second compressor, condenser, second electronic expansion valve, the output tube of second compressor and the top intake-tube connection of condenser, the bottom drain pipe of condenser passes through the bottom import pipeline connection of second electronic expansion valve and second evaporimeter, the top muffler of second evaporimeter and the intake-tube connection of second compressor, the bottom inlet tube of condenser passes through heat exchanger and links to each other with the second water tank, water injection in the top outlet pipe of condenser is in the second water tank.
In the above scheme, the cold source of the second evaporator is the CO 2 Water intake in a heat pump system.
In the scheme, the water temperature conveyed by the first water tank is 60-70 ℃, and the water temperature conveyed by the second water tank is 40-50 ℃.
In the scheme, the partition boards for isolating cold water and hot water are arranged in the first water tank and the second water tank.
In the above scheme, the first water tank and CO 2 A first water pump is arranged on a pipeline between the heat pump systems, and a second water pump is arranged on a pipeline between the second water tank and the auxiliary heat pump system.
Compared with the prior art, the invention has the beneficial effects that: CO of this patent 2 Maximizing efficiency by reducing the inlet water temperature of the gas cooler in the system, assisting the second evaporator in the heat pump system to drive CO 2 The inlet water of the gas cooler in the heat pump system is used as a cold source to fully utilize the products of the system. The water inlet of the condenser exchanges heat with the heat exchanger, so that the water temperature of the water inlet of the condenser is improved, and the working efficiency is improved. Set up two water tanks in this patent, satisfy different operation requirement, guarantee when water tank temperature reaches, the system can shut down, the energy saving. This patent is used to solve CO 2 The problem of low energy efficiency when the water inlet temperature of the system is high is conducive to further improving the efficiency and effectively saving energy. The utility model has the advantages of this patent has increased the function of domestic water on the basis of heating for heat pump system has multiple use, practices thrift the investment cost of equipment, has improved the rate of utilization of equipment.
Drawings
FIG. 1 is a schematic diagram of the overall structure of the present invention.
Reference numerals in the drawings: 1-a first water tank, 10-a first water pump, 11-a first compressor, 12-an oil separator, 13-a gas cooler, 14-a first electronic expansion valve, 15-a first evaporator and 16-a heat regenerator; 2-second water tank, 20-first water pump, 21-second evaporimeter, 22-second compressor, 23-condenser, 24-second electronic expansion valve, 3-heat exchanger.
Detailed Description
The technical scheme of the invention is further described in detail below with reference to the accompanying drawings and examples.
As shown in fig. 1, a transcritical CO 2 A composite heat pump system comprises a first water tank 1, CO 2 Heat pump system, second water tank 2, auxiliary heat pump system and heat exchanger 3, co 2 The heat pump system includesThe air conditioner comprises a compressor 11, an oil separator 12, a gas cooler 13, a first electronic expansion valve 14, a first evaporator 15 and a heat regenerator 16, wherein an output pipe of the first compressor 11 is connected with a top air inlet pipe of the gas cooler 13 through the oil separator 12, a bottom output pipe of the gas cooler 13 is connected with a top air inlet pipe of the heat regenerator 16, a bottom water inlet pipe of the gas cooler 13 is connected with a first water tank 1 through a heat exchanger 3, water in a top water outlet pipe of the gas cooler 13 is injected into the first water tank 1, an air return pipe of the heat regenerator 16 is connected with the first evaporator 15 through the first electronic expansion valve 14, an outlet pipeline of the first evaporator 15 is connected with a bottom air inlet pipe of the heat regenerator 16, and a top outlet pipeline of the heat regenerator 16 is connected with an air inlet pipe of the first compressor 11.
The auxiliary heat pump system comprises a second evaporator 21, a second compressor 22, a condenser 23 and a second electronic expansion valve 24, wherein an output pipe of the second compressor 22 is connected with a top air inlet pipe of the condenser 23, a bottom liquid outlet pipe of the condenser 23 is connected with a bottom liquid inlet pipe of the second evaporator 21 through the second electronic expansion valve 24, an air return pipe of the second evaporator 21 is connected with an air suction port of the second compressor 22, a bottom water inlet pipe of the condenser 23 is connected with a second water tank 2 through a heat exchanger 3, and water in an outlet pipe at the top of the condenser 23 is injected into the second water tank 2. The auxiliary heat pump system can also adopt the existing Freon heat pump system to finish the transcritical CO 2 Auxiliary heat pump functions in a compound heat pump system.
At the trans-critical CO 2 In the composite heat pump system, the cold source of the second evaporator 21 in the auxiliary heat pump system is CO 2 The inlet water of the gas cooler 13 in the heat pump system reasonably utilizes the existing products of the system to save the external energy consumption. The water in the first water tank 1 enters CO 2 Before the heat pump system heats, heat exchange is carried out between the heat exchanger 3 and water in the auxiliary heat pump system, and the existing product of the system is utilized again for reasonable utilization, so that the external energy consumption is saved.
The water temperature conveyed by the first water tank 1 is 60-70 ℃, and the water temperature conveyed by the second water tank 2 is 40-50 ℃. The first water tank 1 provides 60-70 degrees of heating water for users, heating backwater can reenter the first water tank 1 and carry out moisturizing, the second water tank 2 provides 40-50 degrees of domestic water for users, and moisturizing is provided by external water source, and the demands of different users are respectively satisfied through setting up two different warm water sources.
The inside of the first tank 1 and the inside of the second tank 2 are both provided with a partition plate for separating cold and hot water phases, and cold water on the cold water side of the partition plate will enter the hot water side when it rises. First water tank 1 and CO 2 A first water pump 10 is arranged on a pipeline between the heat pump systems to control the water source in the first water tank to enter CO 2 And a second water pump 20 is arranged on a pipeline between the second water tank 2 and the auxiliary heat pump system, and the water source in the second water tank is controlled to enter the auxiliary heat pump system.
CO of this patent 2 Maximizing efficiency by reducing the inlet water temperature of the gas cooler 13 in the system, assisting the second evaporator 21 in the heat pump system to pump CO 2 The inlet water of the gas cooler 13 in the heat pump system is used as a cold source to fully utilize the products of the system. The water inlet of the condenser 23 exchanges heat with the heat exchanger 3, so that the water temperature of the water inlet of the condenser 23 is improved, and the working efficiency is improved.
Set up two water tanks in this patent, satisfy different operation requirement, guarantee when water tank temperature reaches, the system can shut down, the energy saving. This patent is used to solve CO 2 The problem of low energy efficiency when the water inlet temperature of the system is high is conducive to further improving the efficiency and effectively saving energy. The utility model has the advantages of this patent has increased the function of domestic water on the basis of heating for heat pump system has multiple use, practices thrift the investment cost of equipment, has improved the rate of utilization of equipment.
The foregoing description of the embodiments has been provided for the purpose of illustrating the general principles of the invention, and is not meant to limit the scope of the invention, but to limit the invention to the particular embodiments, and any modifications, equivalents, improvements, etc. that fall within the spirit and principles of the invention are intended to be included within the scope of the invention.
Claims (2)
1. Transcritical CO 2 The compound heat pump system is characterized in that: comprisingFirst water tank (1) and CO 2 Heat pump system, second water tank (2), auxiliary heat pump system and heat exchanger (3), said CO 2 The heat pump system comprises a first compressor (11), an oil separator (12), a gas cooler (13), a first electronic expansion valve (14), a first evaporator (15) and a heat regenerator (16), wherein an output pipe of the first compressor (11) is connected with a top air inlet pipe of the gas cooler (13) through the oil separator (12), a bottom output pipe of the gas cooler (13) is connected with a top air inlet pipe of the heat regenerator (16), a bottom water inlet pipe of the gas cooler (13) is connected with a first water tank (1) through a heat exchanger (3), water in a top water outlet pipe of the gas cooler (13) is injected into the first water tank (1), a bottom air inlet pipe of the heat regenerator (16) is connected with the first evaporator (15) through the first electronic expansion valve (14), an outlet pipe of the first evaporator (15) is connected with a bottom inlet pipe of the heat regenerator (16), a top air return pipe of the heat regenerator (16) is connected with an air inlet pipe of the first compressor (11), and water generated by the auxiliary heat pump system is injected into a second water tank (2);
the auxiliary heat pump system comprises a second evaporator (21), a second compressor (22), a condenser (23) and a second electronic expansion valve (24), wherein an output pipe of the second compressor (22) is connected with a top air inlet pipe of the condenser (23), a bottom liquid outlet pipe of the condenser (23) is connected with a bottom inlet pipeline of the second evaporator (21) through the second electronic expansion valve (24), a top air return pipe of the second evaporator (21) is connected with an air inlet pipe of the second compressor (22), a bottom water inlet pipe of the condenser (23) is connected with a second water tank (2) through a heat exchanger (3), and water in a top water outlet pipe of the condenser (23) is injected into the second water tank (2);
the water temperature conveyed by the first water tank (1) is 60-70 ℃, and the water temperature conveyed by the second water tank (2) is 40-50 ℃; the inside of the first water tank (1) and the inside of the second water tank (2) are both provided with a partition board for separating cold water from hot water.
2. A transcritical CO according to claim 1 2 The compound heat pump system is characterized in that: the first water tank (1) and CO 2 A first water pump (10) is arranged on a pipeline between the heat pump systems, and a second water pump (20) is arranged on a pipeline between the second water tank (2) and the auxiliary heat pump systems.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911306926.2A CN111288537B (en) | 2019-12-18 | 2019-12-18 | Transcritical CO 2 Composite heat pump system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911306926.2A CN111288537B (en) | 2019-12-18 | 2019-12-18 | Transcritical CO 2 Composite heat pump system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111288537A CN111288537A (en) | 2020-06-16 |
| CN111288537B true CN111288537B (en) | 2024-03-12 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911306926.2A Active CN111288537B (en) | 2019-12-18 | 2019-12-18 | Transcritical CO 2 Composite heat pump system |
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| Country | Link |
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| CN (1) | CN111288537B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023158583A1 (en) * | 2022-02-15 | 2023-08-24 | Rheem Manufacturing Company | Heat pump systems with boost heat pump |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101358784A (en) * | 2008-09-24 | 2009-02-04 | 天津大学 | Solar thermal storage and geothermal heat pump group system |
| CN202133556U (en) * | 2011-06-23 | 2012-02-01 | 广州万宝集团有限公司 | Simulation system for cycle of refrigerant |
| KR101418964B1 (en) * | 2013-12-31 | 2014-07-11 | (주)블루에어텍 | Cooling system of water source heat pump with high water temperature |
| CN206001737U (en) * | 2016-08-10 | 2017-03-08 | 燕园德普科技（北京）有限公司 | A kind of super low temperature heat pump system for heating |
| CN206724506U (en) * | 2017-05-24 | 2017-12-08 | 江苏苏净集团有限公司 | A kind of carbon dioxide heat-pump heating system |
| CN109323477A (en) * | 2018-09-11 | 2019-02-12 | 西安交通大学 | It is a kind of based on the Trans-critical cycle CO with forecooler2Heat pump system and its water route two-way valve control method |
| CN211876151U (en) * | 2019-12-18 | 2020-11-06 | 南京久鼎精机冷冻设备有限公司 | Transcritical CO2 composite heat pump system |
-
2019
- 2019-12-18 CN CN201911306926.2A patent/CN111288537B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101358784A (en) * | 2008-09-24 | 2009-02-04 | 天津大学 | Solar thermal storage and geothermal heat pump group system |
| CN202133556U (en) * | 2011-06-23 | 2012-02-01 | 广州万宝集团有限公司 | Simulation system for cycle of refrigerant |
| KR101418964B1 (en) * | 2013-12-31 | 2014-07-11 | (주)블루에어텍 | Cooling system of water source heat pump with high water temperature |
| CN206001737U (en) * | 2016-08-10 | 2017-03-08 | 燕园德普科技（北京）有限公司 | A kind of super low temperature heat pump system for heating |
| CN206724506U (en) * | 2017-05-24 | 2017-12-08 | 江苏苏净集团有限公司 | A kind of carbon dioxide heat-pump heating system |
| CN109323477A (en) * | 2018-09-11 | 2019-02-12 | 西安交通大学 | It is a kind of based on the Trans-critical cycle CO with forecooler2Heat pump system and its water route two-way valve control method |
| CN211876151U (en) * | 2019-12-18 | 2020-11-06 | 南京久鼎精机冷冻设备有限公司 | Transcritical CO2 composite heat pump system |
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| CN111288537A (en) | 2020-06-16 |
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