CN114228435A - Hydrogen energy automobile air conditioning system based on coupling of liquid hydrogen cold energy recovery technology and heat pump technology - Google Patents
Hydrogen energy automobile air conditioning system based on coupling of liquid hydrogen cold energy recovery technology and heat pump technology Download PDFInfo
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- CN114228435A CN114228435A CN202111295811.5A CN202111295811A CN114228435A CN 114228435 A CN114228435 A CN 114228435A CN 202111295811 A CN202111295811 A CN 202111295811A CN 114228435 A CN114228435 A CN 114228435A
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- 239000001257 hydrogen Substances 0.000 title claims abstract description 132
- 229910052739 hydrogen Inorganic materials 0.000 title claims abstract description 132
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 title claims abstract description 128
- 239000007788 liquid Substances 0.000 title claims abstract description 107
- 238000005516 engineering process Methods 0.000 title claims abstract description 38
- 230000008878 coupling Effects 0.000 title claims abstract description 19
- 238000010168 coupling process Methods 0.000 title claims abstract description 19
- 238000005859 coupling reaction Methods 0.000 title claims abstract description 19
- 238000011084 recovery Methods 0.000 title claims abstract description 19
- 238000004378 air conditioning Methods 0.000 title claims abstract description 18
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 114
- 239000006200 vaporizer Substances 0.000 claims abstract description 29
- 238000003860 storage Methods 0.000 claims abstract description 21
- 239000003507 refrigerant Substances 0.000 claims description 67
- 239000007789 gas Substances 0.000 claims description 22
- 239000000446 fuel Substances 0.000 claims description 21
- 238000005057 refrigeration Methods 0.000 claims description 12
- 239000000498 cooling water Substances 0.000 claims description 6
- 238000010438 heat treatment Methods 0.000 claims description 5
- 238000005520 cutting process Methods 0.000 claims description 3
- 238000004891 communication Methods 0.000 claims 6
- 238000001816 cooling Methods 0.000 abstract description 10
- 150000002431 hydrogen Chemical class 0.000 abstract description 2
- 238000005265 energy consumption Methods 0.000 abstract 1
- 230000001105 regulatory effect Effects 0.000 abstract 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 5
- 238000006243 chemical reaction Methods 0.000 description 5
- 239000001301 oxygen Substances 0.000 description 5
- 229910052760 oxygen Inorganic materials 0.000 description 5
- 230000006835 compression Effects 0.000 description 3
- 238000007906 compression Methods 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 239000003054 catalyst Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 description 1
- 238000003915 air pollution Methods 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000008016 vaporization Effects 0.000 description 1
- 238000009834 vaporization Methods 0.000 description 1
- 238000010792 warming Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
- B60H1/00—Heating, cooling or ventilating [HVAC] devices
- B60H1/00271—HVAC devices specially adapted for particular vehicle parts or components and being connected to the vehicle HVAC unit
- B60H1/00278—HVAC devices specially adapted for particular vehicle parts or components and being connected to the vehicle HVAC unit for the battery
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
- B60H1/00—Heating, cooling or ventilating [HVAC] devices
- B60H1/00321—Heat exchangers for air-conditioning devices
- B60H1/00342—Heat exchangers for air-conditioning devices of the liquid-liquid type
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
- B60H1/00—Heating, cooling or ventilating [HVAC] devices
- B60H1/00357—Air-conditioning arrangements specially adapted for particular vehicles
- B60H1/00385—Air-conditioning arrangements specially adapted for particular vehicles for vehicles having an electrical drive, e.g. hybrid or fuel cell
- B60H1/00392—Air-conditioning arrangements specially adapted for particular vehicles for vehicles having an electrical drive, e.g. hybrid or fuel cell for electric vehicles having only electric drive means
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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
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/52—Heat recovery pumps, i.e. heat pump based systems or units able to transfer the thermal energy from one area of the premises or part of the facilities to a different one, improving the overall efficiency
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Air-Conditioning For Vehicles (AREA)
- Fuel Cell (AREA)
Abstract
The invention discloses a hydrogen energy automobile air conditioning system based on coupling of a liquid hydrogen cold energy recovery technology and a heat pump technology, and belongs to a hydrogen energy automobile system. According to the invention, the heat exchanger is arranged between the vehicle-mounted liquid hydrogen storage tank and the vaporizer, so that cold energy is used for cooling system circulating water in the arranged heat exchanger before liquid hydrogen enters the vaporizer, the circulating water cooled by the heat exchanger can be used for cooling air in the passenger compartment, the temperature of air in the vehicle is further regulated, and the power of a compressor of the vehicle-mounted cooling system is reduced. Therefore, the system can effectively recover the cold energy of the liquid hydrogen, reduce the energy consumption of the hydrogen energy automobile and improve the driving mileage.
Description
Technical Field
The invention belongs to a hydrogen energy automobile system, and particularly relates to a hydrogen energy automobile air conditioning system based on coupling of a liquid hydrogen cold energy recovery technology and a heat pump technology.
Background
The destruction of the ozone layer, the climate warming and the automobile exhaust emission are the main environmental problems facing the world at present. With the improvement of living standard of people, the production and usage of motor vehicles are increased rapidly, and the influence of the exhaust emission of motor vehicles on the environment and the health of people is becoming more and more serious.
The hydrogen energy fuel cell automobile is an automobile using hydrogen as an energy source, converts chemical energy generated by reaction of hydrogen and oxygen in the air into electric energy, and drives the automobile to run through an electric motor. The greatest benefit of using hydrogen as energy is that it reacts with oxygen in the air, only water vapor is generated to be discharged, and the problem of air pollution caused by the traditional fuel vehicle is effectively reduced.
The liquid hydrogen fuel cell vehicle generally needs to pass through a vaporizer before the liquid hydrogen enters the fuel cell to perform chemical reaction with oxygen in the air, and the liquid hydrogen in the vaporizer is vaporized into hydrogen. The liquid hydrogen exchanges heat with outside air in the vaporizer, and cold energy contained in the liquid hydrogen can be taken away by the outside air in the process, so that the waste of the cold energy of the liquid hydrogen is caused.
Disclosure of Invention
The technical problem to be solved and the technical task provided by the invention are to recover the liquid hydrogen cold energy wasted in a vaporizer in a liquid hydrogen fuel cell automobile, and provide a hydrogen energy automobile air-conditioning system based on the coupling of a liquid hydrogen cold energy recovery technology and a heat pump technology.
In order to achieve the purpose, the hydrogen energy automobile air conditioning system based on coupling of the liquid hydrogen cold energy recovery technology and the heat pump technology comprises an on-vehicle liquid hydrogen storage tank, a stop valve, a first electronic expansion valve (3), a heat exchanger, a vaporizer, a fuel cell, a storage battery, a motor, an electric control system, an electric compressor, a four-way valve, a condenser, a second electronic expansion valve (13), a cabin heat exchanger, a gas-liquid separator, a variable frequency water pump, a third electronic expansion valve (17), an expansion water tank, a first variable frequency fan (19), a second variable frequency fan (20) and a third variable frequency fan (21), wherein the on-vehicle liquid hydrogen storage tank is provided with a liquid hydrogen outlet, the heat exchanger is provided with a heat exchange water inlet, a heat exchange water outlet, a liquid hydrogen inlet and a liquid hydrogen outlet, the vaporizer is provided with a liquid hydrogen inlet and a gas hydrogen outlet, and the fuel cell is provided with a gas hydrogen inlet and a gas hydrogen outlet, The electric compressor is provided with a refrigerant inlet and a refrigerant outlet, the four-way valve is provided with four external interfaces of a, b, c and d, the condenser is provided with a refrigerant inlet and a refrigerant outlet, the second electronic expansion valve (13) is provided with a refrigerant inlet and a refrigerant outlet, the cabin heat exchanger is provided with a refrigerant inlet, a refrigerant outlet, a cooling water inlet and a cooling water outlet, the gas-liquid separator is provided with a refrigerant inlet and a refrigerant outlet, the variable frequency water pump is provided with a water inlet and a water outlet, the third electronic expansion valve (17) is provided with a water inlet and a water outlet, and the expansion water tank is provided with a water inlet and a water outlet, and the electric compressor is characterized in that: a liquid hydrogen outlet of the vehicle-mounted liquid hydrogen storage tank is communicated with a liquid hydrogen inlet of the heat exchanger sequentially through an electromagnetic valve and a first electronic expansion valve (3), the liquid hydrogen outlet of the heat exchanger is connected with the liquid hydrogen inlet of the vaporizer through a pipeline, a gas hydrogen outlet of the vaporizer is communicated with the gas hydrogen inlet of the fuel cell, a refrigerant outlet of the condenser is communicated with a refrigerant inlet of a second electronic expansion valve (13), a refrigerant outlet of the second electronic expansion valve (13) is communicated with a refrigerant inlet of the passenger cabin heat exchanger, a refrigerant outlet of the gas-liquid separator is communicated with an inlet of the electric compressor, a water outlet of the variable frequency water pump is communicated with a water inlet of the passenger cabin heat exchanger, a water outlet of the passenger cabin heat exchanger is communicated with a water inlet of a third electronic expansion valve (17), and a water outlet of the third electronic expansion valve (17) is communicated with a water inlet of the heat exchanger, and the water outlet of the heat exchanger is communicated with the water inlet of the expansion water tank, and the water outlet of the expansion water tank is communicated with the water inlet of the variable-frequency water pump.
As a preferable technical means: and a liquid hydrogen outlet of the vehicle-mounted liquid hydrogen storage tank is communicated with a liquid hydrogen inlet of the heat exchanger sequentially through the electromagnetic valve and the first electronic expansion valve (3). When the vehicle does not work, the electromagnetic valve is used for cutting off the gas supply of the liquid hydrogen pipeline of the vehicle; the first electronic expansion valve (3) can adjust the liquid supply amount of the liquid hydrogen pipeline according to vehicle control signals.
As a preferable technical means: and a liquid hydrogen outlet of the heat exchanger is connected with a liquid hydrogen inlet of the vaporizer through a pipeline.
As a preferable technical means: the gas hydrogen outlet of the vaporizer is communicated with the gas hydrogen inlet of the fuel cell; the frequency conversion fan of the vaporizer can adjust the rotating speed of the fan according to vehicle control signals so as to ensure that the hydrogen gas inlet working condition of the fuel cell meets the gas inlet requirement.
As a preferable technical means: and the refrigerant outlet of the condenser is communicated with the refrigerant inlet of a second electronic expansion valve (13).
As a preferable technical means: and a refrigerant outlet of the second electronic expansion valve (13) is communicated with a refrigerant inlet of the cabin heat exchanger.
As a preferable technical means: and a refrigerant outlet of the gas-liquid separator is communicated with an inlet of the electric compressor.
As a preferable technical means: and the water outlet of the variable frequency water pump is communicated with the water inlet of the cabin heat exchanger.
As a preferable technical means: the water outlet of the cabin heat exchanger is communicated with the water inlet of a third electronic expansion valve (17).
As a preferable technical means: and the water outlet of the heat exchanger is communicated with the water inlet of the expansion water tank.
As a preferable technical means: and the water outlet of the expansion water tank is communicated with the water inlet of the variable-frequency water pump.
According to the invention, the heat exchanger is arranged between the vehicle-mounted liquid hydrogen storage tank and the vaporizer, so that cold energy is used for circulating water of the cooling system in the arranged heat exchanger before liquid hydrogen enters the vaporizer, the circulating water cooled by the heat exchanger is used for cooling heating components such as a vehicle-mounted battery and an electric control, the cold energy of the liquid hydrogen is recycled, the cooling power of the vehicle-mounted cooling system is reduced, and the driving mileage is increased.
Drawings
FIG. 1 is a diagram of a hydrogen energy automobile air conditioning system based on coupling of liquid hydrogen cold energy recovery technology and heat pump technology;
the reference numbers in the figures illustrate: 1-vehicle liquid hydrogen storage tank; 2-an electromagnetic valve; 3-an electronic expansion valve; 4-a heat exchanger; 5-a vaporizer; 6-a fuel cell; 7-a storage battery; 8, a motor; 9-an electronic control system; 10-an electric compressor; 11-a four-way valve; 12-a condenser; 13-an electronic expansion valve; 14-cabin heat exchanger; 15-gas-liquid separator; 16-variable frequency water pump; 17-an electronic expansion valve; 18-an expansion tank; 19-a variable frequency fan; 20-a variable frequency fan; 21-variable frequency fan.
Detailed Description
The invention is further described below with reference to the accompanying drawings.
As shown in figure 1, the hydrogen energy automobile air conditioning system based on coupling of the liquid hydrogen cold energy recovery technology and the heat pump technology comprises an on-vehicle liquid hydrogen storage tank 1, a stop valve 2, a first electronic expansion valve 3, a first heat exchanger 4, a vaporizer 5, a fuel cell 6, a storage battery 7, a motor 8, an electric control system 9, an electric compressor 10, a four-way valve 11, a condenser 12, a second electronic expansion valve 13, a cabin heat exchanger 14, a gas-liquid separator 15, a variable frequency water pump 16, a third electronic expansion valve 17, an expansion water tank 18, a first variable frequency fan 19, a second variable frequency fan 20 and a third variable frequency fan (21), wherein the on-vehicle liquid hydrogen storage tank 1 is provided with a liquid hydrogen outlet, the first heat exchanger 4 is provided with a heat exchange water inlet, a heat exchange water outlet, a liquid hydrogen inlet and a liquid hydrogen outlet, the vaporizer 5 is provided with a liquid hydrogen inlet and a gas hydrogen outlet, and the fuel cell 6 is provided with a gas hydrogen inlet and a liquid hydrogen outlet, An air inlet and a tail gas outlet, an electric compressor 10 is provided with a refrigerant inlet and a refrigerant outlet, a four-way valve 11 is provided with four external interfaces a, b, c and d, a condenser 12 is provided with a refrigerant inlet and a refrigerant outlet, a second electronic expansion valve 13 is provided with a refrigerant inlet and a refrigerant outlet, a cabin heat exchanger 14 is provided with a refrigerant inlet, a refrigerant outlet, a cooling water inlet and a cooling water outlet, a gas-liquid separator 15 is provided with a refrigerant inlet and a refrigerant outlet, a variable frequency water pump 16 is provided with a water inlet and a water outlet, a third electronic expansion valve 17 is provided with a refrigerant inlet and a refrigerant outlet, an expansion water tank 18 is provided with a water inlet and a water outlet, a liquid hydrogen outlet of a vehicle-mounted liquid hydrogen storage tank 1 is communicated with a liquid hydrogen inlet of a first heat exchanger 4 sequentially through a stop valve 2 and the first electronic expansion valve 3, a liquid hydrogen outlet of the first heat exchanger 4 is connected with a liquid hydrogen inlet of a vaporizer 5 through a pipeline, the gas-hydrogen outlet of the vaporizer 5 is communicated with the gas-hydrogen inlet of the fuel cell 6, the refrigerant outlet of the condenser 12 is communicated with the refrigerant inlet of the second electronic expansion valve 13, the refrigerant outlet of the second electronic expansion valve 13 is communicated with the refrigerant inlet of the cabin heat exchanger 14, the refrigerant outlet of the gas-liquid separator 15 is communicated with the inlet of the electric compressor 10, the water outlet of the variable frequency water pump 16 is communicated with the water inlet of the cabin heat exchanger 14, the water outlet of the cabin heat exchanger 14 is communicated with the water inlet of the third electronic expansion valve 17, the water outlet of the third electronic expansion valve 17 is communicated with the water inlet of the first heat exchanger 4, the water outlet of the first heat exchanger 4 is communicated with the water inlet of the expansion water tank 18, and the water outlet of the expansion water tank 18 is communicated with the water inlet of the variable frequency water pump (16).
The stop valve 2 can be used for cutting off the gas supply of the liquid hydrogen pipeline of the vehicle when the vehicle does not work. The first electronic expansion valve 3 can adjust the liquid supply amount of the liquid hydrogen pipeline according to the vehicle control signal to match the required power of the vehicle.
The vaporizer 5 is used for heat exchange vaporization of gas-liquid two-phase liquid hydrogen at the outlet of the first heat exchanger 4, and a frequency conversion fan 14 arranged on the vaporizer can adjust the rotating speed of the fan according to vehicle control signals so as to ensure that the gas-hydrogen inlet working condition of the fuel cell 6 meets the gas inlet requirement.
The hydrogen in the fuel cell 6 and the oxygen in the air are subjected to chemical reaction under the action of the catalyst, and the chemical energy is converted into electric energy to charge the storage battery 7 for driving power consumption components such as the motor 8, the electric compressor 10 and the vehicle-mounted electronic control system 9.
The electric compressor 10, the condenser 12, the second electronic expansion valve 13, the cabin heat exchanger 14, the four-way valve 11, the gas-liquid separator 15, and the like constitute a compression refrigeration cycle. When the air conditioner works in a refrigerating mode, the refrigerant flows to a compressor 10, a-b of a four-way valve 11, a condenser 12, a second electronic expansion valve 13, a cabin heat exchanger 14, c-d of the four-way valve 11 and a gas-liquid separator 15; in the heating operation mode, the refrigerant flows through the compressor 10, a-d of the four-way valve 11, the cabin heat exchanger 14, the second electronic expansion valve 13, the condenser 12, b-c of the four-way valve 11, and the gas-liquid separator 15.
The opening degree of the third electronic expansion valve 17 and the rotating speed of the variable frequency water pump 16 can be automatically adjusted according to the variation of the refrigeration load within a certain range.
The opening degree of the second electronic expansion valve 13 can be automatically adjusted according to the thermal load on the compression refrigeration system.
The expansion tank 18 is used for buffering pressure fluctuation in the circulating water path.
When the vehicle is started, the stop valve 2, the first electronic expansion valve 3 and the first variable frequency fan 19 are all opened to operate. During operation, liquid hydrogen in the vehicle-mounted liquid hydrogen storage tank enters the first heat exchanger 4 after passing through the stop valve 2 and the first electronic expansion valve 3. When the refrigeration mode works, the variable frequency water pump 16, the third electronic expansion valve 17 and the third variable frequency fan 21 are started, and liquid hydrogen exchanges heat with circulating water in the first heat exchanger 4 to transfer cold energy to the circulating water. When the refrigeration load of the vehicle is not large, the electric compressor 10 is not started, the circulating water cooled by the first heat exchanger 4 can exchange heat with air in the vehicle in the cabin heat exchanger 14, and the liquid hydrogen cold energy is indirectly used for cooling the air in the vehicle; when the vehicle has a large refrigeration load, the electric compressor 10 is started, and the part with insufficient refrigeration load is complemented by the compression type refrigeration cycle system driven by the electric compressor 10. When the heating mode works, the variable frequency water pump 16 and the third electronic expansion valve 17 are not started, and the third variable frequency fan 21, the electric compressor 10 and the second electronic expansion valve 13 are started. The liquid hydrogen from the first heat exchanger 4 then flows into the vaporizer 5, absorbs heat in the vaporizer 5 and is converted into gaseous hydrogen, and then the gaseous hydrogen enters the fuel cell 6 to chemically react with oxygen in the air under the action of a catalyst to generate electric energy to charge the storage battery 7, and the storage battery 7 supplies power to the driving motor 8 to drive the vehicle to run.
The scheme of coupling the liquid hydrogen cold energy recovery technology and the heat pump technology for operation can effectively reduce the cooling power of the vehicle-mounted cooling system when the vehicle works in a vehicle refrigeration mode.
The above examples are only for illustrating the technical idea and features of the present invention, and are not intended to limit the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. Not all embodiments are exhaustive. All obvious changes and modifications of the present invention are within the scope of the present invention.
Claims (10)
1. A hydrogen energy automobile air conditioning system based on coupling of a liquid hydrogen cold energy recovery technology and a heat pump technology comprises an on-vehicle liquid hydrogen storage tank (1), a stop valve (2), a first electronic expansion valve (3), a first heat exchanger (4), a vaporizer (5), a fuel cell (6), a storage battery (7), a motor (8), an electric control system (9), an electric compressor (10), a four-way valve (11), a condenser (12), a second electronic expansion valve (13), a cabin heat exchanger (14), a gas-liquid separator (15), a variable frequency water pump (16), a third electronic expansion valve (17), an expansion water tank (18), a first variable frequency fan (19), a second variable frequency fan (20) and a third variable frequency fan (21), wherein the on-vehicle liquid hydrogen storage tank (1) is provided with a liquid hydrogen outlet, and the first heat exchanger (4) is provided with a heat exchange water inlet and a heat exchange water outlet, A liquid hydrogen inlet and a liquid hydrogen outlet, the vaporizer (5) is provided with a liquid hydrogen inlet and a gas hydrogen outlet, the fuel cell (6) is provided with a gas hydrogen inlet, an air inlet and a tail gas outlet, the electric compressor (10) is provided with a refrigerant inlet and a refrigerant outlet, the four-way valve (11) is provided with four external interfaces a, b, c and d, the condenser (12) is provided with a refrigerant inlet and a refrigerant outlet, the second electronic expansion valve (13) is provided with a refrigerant inlet and a refrigerant outlet, the passenger cabin heat exchanger (14) is provided with a refrigerant inlet, a refrigerant outlet, a cooling water inlet and a cooling water outlet, the gas-liquid separator (15) is provided with a refrigerant inlet and a refrigerant outlet, the variable frequency water pump (16) is provided with a water inlet and a water outlet, and the third electronic expansion valve (17) is provided with a refrigerant inlet and a refrigerant outlet, the expansion water tank (18) is provided with a water inlet and a water outlet, and is characterized in that: a liquid hydrogen outlet of the vehicle-mounted liquid hydrogen storage tank (1) is communicated with a liquid hydrogen inlet of the first heat exchanger (4) sequentially through the stop valve (2) and the first electronic expansion valve (3), a liquid hydrogen outlet of the first heat exchanger (4) is connected with a liquid hydrogen inlet of the vaporizer (5) through a pipeline, a gas hydrogen outlet of the vaporizer (5) is communicated with a gas hydrogen inlet of the fuel cell (6), a refrigerant outlet of the condenser (12) is communicated with a refrigerant inlet of the second electronic expansion valve (13), a refrigerant outlet of the second electronic expansion valve (13) is communicated with a refrigerant inlet of the cabin heat exchanger (14), a refrigerant outlet of the gas-liquid separator (15) is communicated with an inlet of the electric compressor (10), a water outlet of the variable frequency water pump (16) is communicated with a water inlet of the cabin heat exchanger (14), a water outlet of the cabin heat exchanger (14) is communicated with a water inlet of the third electronic expansion valve (17), the water outlet of the third electronic expansion valve (17) is communicated with the water inlet of the first heat exchanger (4), the water outlet of the first heat exchanger (4) is communicated with the water inlet of the expansion water tank (18), and the water outlet of the expansion water tank (18) is communicated with the water inlet of the variable-frequency water pump (16).
2. The hydrogen energy automobile air conditioning system based on the coupling of the liquid hydrogen cold energy recovery technology and the heat pump technology as claimed in claim 1, characterized in that: when the vehicle does not work, the stop valve (2) is used for cutting off the gas supply of the liquid hydrogen pipeline of the vehicle; the first electronic expansion valve (3) adjusts the liquid supply amount of the liquid hydrogen pipeline according to the vehicle control signal.
3. The hydrogen energy automobile air conditioning system based on the coupling of the liquid hydrogen cold energy recovery technology and the heat pump technology as claimed in claim 1, characterized in that: the gas hydrogen outlet of the vaporizer (5) is communicated with the gas hydrogen inlet of the fuel cell (6); and a first variable frequency fan (19) of the carburetor (5) adjusts the rotating speed of the fan according to the vehicle control signal.
4. The hydrogen energy automobile air conditioning system based on the coupling of the liquid hydrogen cold energy recovery technology and the heat pump technology as claimed in claim 1, characterized in that: in a refrigeration mode, a-b communication and c-d communication of the four-way valve (11), and a refrigerant outlet of the electric compressor (10) is communicated with a refrigerant inlet of the condenser (12); in the heating mode, a-c communication and b-d communication of the four-way valve (11) are realized, and the refrigerant outlet of the electric compressor (10) is communicated with the refrigerant outlet of the cabin heat exchanger (14).
5. The hydrogen energy automobile air conditioning system based on the coupling of the liquid hydrogen cold energy recovery technology and the heat pump technology as claimed in claim 1, characterized in that: the refrigerant outlet of the condenser (12) is communicated with the refrigerant inlet of a second electronic expansion valve (13), and the refrigerant outlet of the second electronic expansion valve (13) is communicated with the refrigerant inlet of the cabin heat exchanger (14).
6. The hydrogen energy automobile air conditioning system based on the coupling of the liquid hydrogen cold energy recovery technology and the heat pump technology as claimed in claim 1, characterized in that: in a refrigeration mode, a-b communication and c-d communication of the four-way valve (11) are realized, and a refrigerant outlet of the cabin heat exchanger (14) is connected with an inlet of the gas-liquid separator (15).
7. The hydrogen energy automobile air conditioning system based on the coupling of the liquid hydrogen cold energy recovery technology and the heat pump technology as claimed in claim 1, characterized in that: a refrigerant outlet of the gas-liquid separator (15) is communicated with an inlet of the electric compressor (10), a four-way valve (11) c-d is communicated under a refrigeration mode, and an inlet of the gas-liquid separator (15) is communicated with a refrigerant outlet of the cabin heat exchanger (14); in the heating mode, the four-way valve (11) b-d is communicated, and the inlet of the gas-liquid separator (15) is communicated with the inlet of the condenser (12).
8. The hydrogen energy automobile air conditioning system based on the coupling of the liquid hydrogen cold energy recovery technology and the heat pump technology as claimed in claim 1, characterized in that: the water outlet of the variable frequency water pump (16) is communicated with the water inlet of the cabin heat exchanger (14), the water outlet of the cabin heat exchanger (14) is communicated with the water inlet of the third electronic expansion valve (17), and the water outlet of the third electronic expansion valve (17) is communicated with the water inlet of the first heat exchanger (4).
9. The hydrogen energy automobile air conditioning system based on the coupling of the liquid hydrogen cold energy recovery technology and the heat pump technology as claimed in claim 1, characterized in that: the water outlet of the first heat exchanger (4) is communicated with the water inlet of an expansion water tank (18), and the water outlet of the expansion water tank (18) is communicated with the water inlet of a variable-frequency water pump (16).
10. The hydrogen energy automobile air conditioning system based on the coupling of the liquid hydrogen cold energy recovery technology and the heat pump technology as claimed in claim 1, characterized in that: and the running frequency of the variable-frequency water pump (16) is automatically adjusted according to the vehicle control signal.
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| CN202111295811.5A CN114228435B (en) | 2021-11-03 | 2021-11-03 | Hydrogen energy automobile air conditioning system based on coupling of liquid hydrogen cold energy recovery technology and heat pump technology |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202111295811.5A CN114228435B (en) | 2021-11-03 | 2021-11-03 | Hydrogen energy automobile air conditioning system based on coupling of liquid hydrogen cold energy recovery technology and heat pump technology |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114877247A (en) * | 2022-04-08 | 2022-08-09 | 东南大学 | Liquid hydrogen supply system for high-voltage fuel cell and control method thereof |
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| CN113540502A (en) * | 2021-07-15 | 2021-10-22 | 山东大学 | Fuel cell waste heat power generation system based on hydrogen evaporation gas |
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| CN114877247A (en) * | 2022-04-08 | 2022-08-09 | 东南大学 | Liquid hydrogen supply system for high-voltage fuel cell and control method thereof |
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| CN114228435B (en) | 2024-06-18 |
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