CN112413713A - Novel double-source heat pump system utilizing phase change energy storage technology - Google Patents
Novel double-source heat pump system utilizing phase change energy storage technology Download PDFInfo
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- CN112413713A CN112413713A CN202011336411.XA CN202011336411A CN112413713A CN 112413713 A CN112413713 A CN 112413713A CN 202011336411 A CN202011336411 A CN 202011336411A CN 112413713 A CN112413713 A CN 112413713A
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- 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
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- 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
- F24D11/00—Central heating systems using heat accumulated in storage masses
- F24D11/002—Central heating systems using heat accumulated in storage masses water heating system
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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
- F25B13/00—Compression machines, plants or systems, with reversible cycle
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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
- F25B39/00—Evaporators; Condensers
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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
- F25B43/00—Arrangements for separating or purifying gases or liquids; Arrangements for vaporising the residuum of liquid refrigerant, e.g. by heat
- F25B43/006—Accumulators
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- Engineering & Computer Science (AREA)
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- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Analytical Chemistry (AREA)
- Power Engineering (AREA)
- Heat-Pump Type And Storage Water Heaters (AREA)
Abstract
The invention discloses a novel double-source heat pump system utilizing a phase change energy storage technology, which is characterized in that: the unit shell is divided into an air source side closed cavity and a ground source side closed cavity through a partition plate, a finned heat exchanger is fixed in the air source side closed cavity, a plurality of groups of paraffin encapsulation pipes are fixed in a phase change energy storage water tank, an outlet of a compressor is connected with a first inlet of a four-way valve through a refrigerant pipeline, a first outlet of the four-way valve is connected with a refrigerant inlet of a user side condenser through the refrigerant pipeline, a refrigerant outlet of the user side condenser is connected with an inlet of a liquid distributor through the refrigerant pipeline, an outlet of the liquid distributor is respectively connected with refrigerant inlets of an air source side evaporator and a ground source side evaporator through the refrigerant pipeline, a throttling valve is installed on the refrigerant pipeline at the rear part of the liquid distributor, and an outlet of a liquid accumulator is connected. The invention has the advantages of good stability, high efficiency and good continuity.
Description
Technical Field
The invention belongs to the technical field of double-source heat pumps, and particularly relates to a novel double-source heat pump system utilizing a phase change energy storage technology.
Background
In order to improve the living environment of human beings and improve the utilization rate of renewable energy, the research of renewable energy technology is more and more emphasized in China and all over the world. The heat pump is taken as one of the energy-saving technologies and generally receives attention from all countries in the world, wherein the air source and the soil source are most widely applied, and the two heat pumps are convenient to use and free of pollution and are a necessary trend for future development in China. But due to the limitation of climate conditions, the popularization of the air source and the ground source heat pump in severe cold and cold regions is greatly limited,
at present traditional two source heat pump system, under the heating mode, adopt air source heat pump heating then to receive the influence of difference in temperature round the clock, the heat pump is excessive in daytime and then the phenomenon that heat supply is not enough under the ambient temperature reduction condition evening, can not full play ultra-low temperature air can heat pump heating's dominant effect, if ambient temperature is low excessively, heating load is high, it is uneconomical to use the air ability, needs to start the soil source this moment and is the heat source. The phase change energy storage technology can solve the problem of unmatched energy supply and demand in time and space, and improves the inlet air temperature at the air source side, so that the operation efficiency of the double-source heat pump is indirectly improved. And finally, the energy storage and the intelligent control system are organically combined, so that the stability of energy supply can be better solved.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provide a novel dual-source heat pump system utilizing a phase change energy storage technology.
The utility model provides an utilize novel two source heat pump system of phase change energy storage technique, includes unit housing, phase change energy storage water tank, its characterized in that: the unit shell is divided into an air source side closed cavity and a ground source side closed cavity through a partition plate, a finned heat exchanger is fixed in the air source side closed cavity, a ground source side evaporator, a user side condenser, a throttle valve, a compressor, a liquid accumulator, a liquid distributor, a four-way valve, a phase change energy storage water tank and a water pump are arranged in the ground source side closed cavity, a plurality of groups of paraffin packaging pipes are fixed in the phase change energy storage water tank, paraffin is packaged in the paraffin packaging pipes, an outlet of the compressor is connected with a first inlet of the four-way valve through a refrigerant pipeline, a first outlet of the four-way valve is connected with a refrigerant inlet of the user side condenser through a refrigerant pipeline, a refrigerant outlet of the user side condenser is connected with an inlet of the liquid distributor through a refrigerant pipeline, and an outlet of the liquid distributor is respectively connected with the air, The refrigerant inlet of the ground source side evaporator is connected, the refrigerant pipeline at the rear part of the liquid separator is provided with a throttle valve, the refrigerant outlets of the air source side evaporator and the ground source side evaporator are both connected with the second inlet of the four-way valve, the second outlet of the four-way valve is connected with the inlet of the liquid storage device through the refrigerant pipeline, and the outlet of the liquid storage device is connected with the inlet of the compressor through the refrigerant pipeline.
Preferably, the upper part and the lower part of the air source side closed cavity are respectively provided with an air inlet and an air outlet.
Preferably, a ground source side water supply port and a ground source side water return port are respectively arranged on the ground source side evaporator.
Preferably, the upper part in the air source side closed cavity is further provided with a capillary network, an outlet of the capillary network is connected with the phase-change energy storage water tank through a water tank pipeline, an inlet of the capillary network is connected with an inlet of the water pump through a water tank pipeline, and an outlet of the water pump is connected with the phase-change energy storage water tank through a water tank pipeline.
Preferably, the phase change energy storage water tank is connected with a water outlet of the user side condenser, a user side water supply opening is formed in the phase change energy storage water tank, and a water inlet of the user side condenser is connected with a user side water return opening.
Preferably, the air inlet of the air source side evaporator is connected with the air outlet.
Compared with the prior art, the invention has the beneficial effects that:
1. the invention adopts the double-source heat pump, combines the phase change energy storage technology and the automatic control technology, can efficiently operate at any time and provides stable heat. The unexpected weather condition of processing that can be more convenient makes the air source side evaporimeter also can exert the high performance of unit when air temperature is lower.
2. The phase change energy storage technology is utilized to store heat, so that stable, efficient and continuous heat supply can be realized under different weather conditions.
3. The phase change energy storage water tank has the function of improving the air temperature of the air source side evaporator instead of directly supplying the heat stored in the phase change energy storage water tank to the user side, so that the application range and the unit performance of the air source heat pump are improved.
4. The fin heat exchanger is independently arranged in the closed cavity at the air source side to supply heat for the evaporator at the air source side, so that the heat supply stability is improved.
Drawings
FIG. 1 is a flow chart of the system operation of a novel dual-source heat pump system utilizing phase change energy storage technology in accordance with the present invention;
FIG. 2 is a schematic view of the configuration of the unit of the present invention;
FIG. 3 is a three-dimensional axial view of a first perspective of the present invention;
FIG. 4 is a three-dimensional axial view of a second perspective of the present invention;
FIG. 5 is a schematic view of a phase change energy storage water tank of the present invention;
in the figure, the system comprises a unit shell 1, a unit shell 2, a finned heat exchanger 3, a ground source side evaporator 4, a user side condenser 5, a throttle valve 6, a compressor 7, a liquid storage device 8, a liquid distributor 9, a four-way valve 10, a phase change energy storage water tank 11, a paraffin packaging pipe 12, a water pump 13, an air inlet 14, an air outlet 15, a capillary network 16, a refrigerant pipeline 17, a water tank pipeline 18, a ground source side water supply inlet 19, a ground source side water return inlet 20, a user side water supply inlet 21, a user side water return inlet 22 and an air source side evaporator.
Detailed Description
Referring to fig. 1 to 5, a novel dual-source heat pump system using a phase change energy storage technology includes a unit housing 1 and a phase change energy storage water tank 10, and is characterized in that: the unit shell 1 is divided into an air source side closed cavity and a ground source side closed cavity by a partition board, a finned heat exchanger 2 is fixed in the air source side closed cavity, a ground source side evaporator 3, a user side condenser 4, a throttle valve 5, a compressor 6, a liquid reservoir 7, a liquid distributor 8, a four-way valve 9, a phase change energy storage water tank 10 and a water pump 12 are arranged in the ground source side closed cavity, a plurality of groups of paraffin packaging pipes 11 are fixed in the phase change energy storage water tank 10, paraffin is packaged in the paraffin packaging pipes 11, an outlet of the compressor 6 is connected with a first inlet of the four-way valve 9 through a refrigerant pipeline 16, a first outlet of the four-way valve 9 is connected with a refrigerant inlet of the user side condenser 4 through a refrigerant pipeline 16, and a refrigerant outlet of the user side condenser 4 is connected with an inlet of the liquid distributor 8 through the refrigerant, the outlet of the liquid separator 8 is connected with the refrigerant inlets of the air source side evaporator 22 and the ground source side evaporator 3 through the refrigerant pipeline 16, the refrigerant pipeline 16 at the rear part of the liquid separator 8 is provided with the throttle valve 5, the refrigerant outlets of the air source side evaporator 22 and the ground source side evaporator 3 are both connected with the second inlet of the four-way valve 9, the second outlet of the four-way valve 9 is connected with the inlet of the liquid storage device 7 through the refrigerant pipeline 16, and the outlet of the liquid storage device 7 is connected with the inlet of the compressor 6 through the refrigerant pipeline 16.
The upper part and the lower part of the air source side closed cavity are respectively provided with an air inlet 13 and an air outlet 14.
The ground source side evaporator 3 is provided with a ground source side water supply port 18 and a ground source side water return port 19 respectively.
The upper portion in the air source side closed cavity is further provided with a capillary network 15, an outlet of the capillary network 15 is connected with the phase change energy storage water tank 10 through a water tank pipeline 17, an inlet of the capillary network 15 is connected with an inlet of the water pump 12 through the water tank pipeline 17, and an outlet of the water pump 12 is connected with the phase change energy storage water tank 10 through the water tank pipeline 17.
The phase change energy storage water tank 10 is connected with a water outlet of the user side condenser 4, a user side water supply port 20 is arranged on the phase change energy storage water tank 10, and a water inlet of the user side condenser 4 is connected with a user side water return port 21.
The air inlet of the air source side evaporator 22 is connected to the air outlet 14.
The working principle of the invention is as follows:
under the energy storage working condition of the phase change energy storage water tank 10, the air source side evaporator 22 is preferentially adopted to absorb heat under any weather condition, and when the air source side evaporator 22 is difficult to meet the heat supply load demand, the air source side evaporator 22 is closed, and the ground source side evaporator 3 is opened to supply heat. The heat transfer agent R410a is evaporated and absorbs heat by the air source side evaporator 22 or the ground source side evaporator 3, and is changed from a low-temperature low-pressure liquid heating agent into a high-temperature low-pressure gas-liquid coexisting heating agent, flows into the four-way valve 9, and then gas-liquid separates the high-temperature low-pressure gas-liquid coexisting heating agent by the reservoir 7, and compresses the high-temperature low-pressure gas heating agent into a high-temperature high-pressure gas heating agent by the compressor 6, and flows into the user side condenser 4 by the four-way valve 9, and provides heat to the user side, and the high-pressure low-temperature heating agent flows through the liquid separator 8 and the throttle valve 5 to form a low-temperature low-pressure heating agent, and then enters the air source. When the required load of user is less, heat pump set output is too much heat, can come to save unnecessary heat through phase change energy storage water tank 10, and the user supplies water and establishes ties and get into phase change energy storage water tank 10, carries out the heat transfer with the water in the phase change energy storage water tank 10, heats phase change energy storage water tank 10 normal water to make paraffin take place the phase transition, absorb a large amount of heats.
The phase change energy storage water tank 10 releases heat, and when the ambient temperature is low, after the phase change energy storage water tank 10 stores a certain amount of heat, the water pump 12 is started to exchange heat between water in the phase change energy storage water tank 10 and air entering the air inlet 13 through the capillary network 15, so that the inlet temperature of the air source side evaporator 22 is increased, and the cop value of the heat pump is increased.
Because weather has instability, the phase change energy storage water tank 10 is added into the double-source heat pump unit to store redundant heat, and when the ambient air temperature is lower than a certain value, the redundant heat is supplied to the side of the air source evaporator 22, so that the stability of the double-source heat pump in the operation process is better improved.
Technical solution of the invention is described above with reference to the accompanying drawings, it is obvious that the specific implementation of the invention is not limited by the above-mentioned manner, and it is within the scope of the invention to adopt various insubstantial modifications of the inventive method concept and technical solution, or to apply the inventive concept and technical solution to other occasions without modification.
Claims (4)
1. The utility model provides an utilize novel two source heat pump system of phase transition energy storage technique, includes unit housing (1), phase transition energy storage water tank (10), its characterized in that: the unit shell (1) is divided into an air source side closed cavity and a ground source side closed cavity through a partition board, a finned heat exchanger (2) is fixed in the air source side closed cavity, a ground source side evaporator (3), a user side condenser (4), a throttle valve (5), a compressor (6), a liquid reservoir (7), a liquid distributor (8), a four-way valve (9), a phase change energy storage water tank (10) and a water pump (12) are arranged in the ground source side closed cavity, a plurality of groups of paraffin packaging tubes (11) are fixed in the phase change energy storage water tank (10), paraffin is packaged in the paraffin packaging tubes (11), an outlet of the compressor (6) is connected with a first inlet of the four-way valve (9) through a refrigerant pipeline (16), and a first outlet of the four-way valve (9) is connected with a refrigerant inlet of the user side condenser (4) through the refrigerant pipeline (16), a refrigerant outlet of the user side condenser (4) is connected with an inlet of a liquid distributor (8) through a refrigerant pipeline (16), an outlet of the liquid distributor (8) is respectively connected with refrigerant inlets of an air source side evaporator (22) and a ground source side evaporator (3) through the refrigerant pipeline (16), a throttle valve (5) is installed on the refrigerant pipeline (16) at the rear part of the liquid distributor (8), refrigerant outlets of the air source side evaporator (22) and the ground source side evaporator (3) are both connected with a second inlet of a four-way valve (9), a second outlet of the four-way valve (9) is connected with an inlet of a liquid accumulator (7) through the refrigerant pipeline (16), and an outlet of the liquid accumulator (7) is connected with an inlet of a compressor (6) through the refrigerant pipeline (16);
a capillary pipe network (15) is further arranged at the upper part in the air source side closed cavity, an outlet of the capillary pipe network (15) is connected with the phase change energy storage water tank (10) through a water tank pipeline (17), an inlet of the capillary pipe network (15) is connected with an inlet of a water pump (12) through the water tank pipeline (17), and an outlet of the water pump (12) is connected with the phase change energy storage water tank (10) through the water tank pipeline (17);
the phase change energy storage water tank (10) is connected with the water outlet of the user side condenser (4), a user side water supply opening (20) is formed in the phase change energy storage water tank (10), and the water inlet of the user side condenser (4) is connected with a user side water return opening (21).
2. A novel dual-source heat pump system using phase change energy storage technology as claimed in claim 1, wherein: and the upper part and the lower part of the air source side closed cavity are respectively provided with an air inlet (13) and an air outlet (14).
3. A novel dual-source heat pump system using phase change energy storage technology as claimed in claim 1, wherein: and the ground source side evaporator (3) is respectively provided with a ground source side water supply port (18) and a ground source side water return port (19).
4. A novel dual-source heat pump system using phase change energy storage technology as claimed in claim 1, wherein: and the air inlet of the air source side evaporator (22) is connected with the air outlet (14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011336411.XA CN112413713A (en) | 2020-11-25 | 2020-11-25 | Novel double-source heat pump system utilizing phase change energy storage technology |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202011336411.XA CN112413713A (en) | 2020-11-25 | 2020-11-25 | Novel double-source heat pump system utilizing phase change energy storage technology |
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| CN112413713A true CN112413713A (en) | 2021-02-26 |
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| CN202011336411.XA Pending CN112413713A (en) | 2020-11-25 | 2020-11-25 | Novel double-source heat pump system utilizing phase change energy storage technology |
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Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101476774A (en) * | 2008-11-18 | 2009-07-08 | 浙江正理电子电气有限公司 | Double-heat source heat pump water heater with air source and water source |
| CN103353169A (en) * | 2013-06-19 | 2013-10-16 | 江苏科技大学 | Double-heat-source heat pump water heater for ship and control method of heat pump water heater |
| KR20130119056A (en) * | 2012-04-23 | 2013-10-31 | 한국에너지기술연구원 | Ground source heat pump and its control for heating cooling and hot water |
| CN203298417U (en) * | 2013-05-11 | 2013-11-20 | 石程林 | Movable heat pump air conditioner |
| CN105066232A (en) * | 2015-08-24 | 2015-11-18 | 沈阳建筑大学 | Heat storage structure achieving flow heat exchange in phase-change materials through capillary tubes |
| CN105180516A (en) * | 2015-09-11 | 2015-12-23 | 吴伟佳 | Energy storage compensation type heat pump or air conditioner |
| CN105318466A (en) * | 2015-11-13 | 2016-02-10 | 清华大学 | Heat storage type air source heat pump water cooling and heating system and operation method thereof |
| CN205783996U (en) * | 2016-05-17 | 2016-12-07 | 邯郸市飞翔新能源科技股份有限公司 | A kind of double-source heat pump accumulation of energy heating/refrigeration system |
| CN210980430U (en) * | 2019-04-08 | 2020-07-10 | 博拓(苏州)新能源技术有限公司 | Double-heat-source heat pump circulating system of air source and ground source |
-
2020
- 2020-11-25 CN CN202011336411.XA patent/CN112413713A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101476774A (en) * | 2008-11-18 | 2009-07-08 | 浙江正理电子电气有限公司 | Double-heat source heat pump water heater with air source and water source |
| KR20130119056A (en) * | 2012-04-23 | 2013-10-31 | 한국에너지기술연구원 | Ground source heat pump and its control for heating cooling and hot water |
| CN203298417U (en) * | 2013-05-11 | 2013-11-20 | 石程林 | Movable heat pump air conditioner |
| CN103353169A (en) * | 2013-06-19 | 2013-10-16 | 江苏科技大学 | Double-heat-source heat pump water heater for ship and control method of heat pump water heater |
| CN105066232A (en) * | 2015-08-24 | 2015-11-18 | 沈阳建筑大学 | Heat storage structure achieving flow heat exchange in phase-change materials through capillary tubes |
| CN105180516A (en) * | 2015-09-11 | 2015-12-23 | 吴伟佳 | Energy storage compensation type heat pump or air conditioner |
| CN105318466A (en) * | 2015-11-13 | 2016-02-10 | 清华大学 | Heat storage type air source heat pump water cooling and heating system and operation method thereof |
| CN205783996U (en) * | 2016-05-17 | 2016-12-07 | 邯郸市飞翔新能源科技股份有限公司 | A kind of double-source heat pump accumulation of energy heating/refrigeration system |
| CN210980430U (en) * | 2019-04-08 | 2020-07-10 | 博拓(苏州)新能源技术有限公司 | Double-heat-source heat pump circulating system of air source and ground source |
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Application publication date: 20210226 |
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