CN115092014B - Whole car thermal management system is retrieved to surplus cold - Google Patents
Whole car thermal management system is retrieved to surplus cold Download PDFInfo
- Publication number
- CN115092014B CN115092014B CN202210677854.8A CN202210677854A CN115092014B CN 115092014 B CN115092014 B CN 115092014B CN 202210677854 A CN202210677854 A CN 202210677854A CN 115092014 B CN115092014 B CN 115092014B
- Authority
- CN
- China
- Prior art keywords
- cooling
- radiator
- vaporizer
- hydrogen
- fuel cell
- 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.)
- Active
Links
- 238000001816 cooling Methods 0.000 claims abstract description 124
- 239000001257 hydrogen Substances 0.000 claims abstract description 109
- 229910052739 hydrogen Inorganic materials 0.000 claims abstract description 109
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims abstract description 108
- 239000006200 vaporizer Substances 0.000 claims abstract description 71
- 239000000446 fuel Substances 0.000 claims abstract description 66
- 239000000110 cooling liquid Substances 0.000 claims abstract description 64
- 239000007788 liquid Substances 0.000 claims abstract description 49
- 238000011084 recovery Methods 0.000 claims description 14
- 239000002918 waste heat Substances 0.000 claims description 3
- 239000012809 cooling fluid Substances 0.000 claims 2
- 230000017525 heat dissipation Effects 0.000 abstract description 22
- 239000007789 gas Substances 0.000 abstract description 12
- 230000008016 vaporization Effects 0.000 abstract description 10
- 238000000034 method Methods 0.000 abstract description 4
- 238000010521 absorption reaction Methods 0.000 abstract description 3
- 239000002826 coolant Substances 0.000 description 14
- 238000009834 vaporization Methods 0.000 description 8
- 238000004064 recycling Methods 0.000 description 6
- 150000002431 hydrogen Chemical class 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000002485 combustion reaction Methods 0.000 description 2
- 239000003507 refrigerant Substances 0.000 description 2
- 238000011144 upstream manufacturing Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000007791 liquid phase Substances 0.000 description 1
- 230000009965 odorless effect Effects 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 239000012071 phase Substances 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 230000008707 rearrangement Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- 239000012808 vapor phase Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L58/00—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles
- B60L58/30—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling fuel cells
- B60L58/32—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling fuel cells for controlling the temperature of fuel cells, e.g. by controlling the electric load
- B60L58/33—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling fuel cells for controlling the temperature of fuel cells, e.g. by controlling the electric load by cooling
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K11/00—Arrangement in connection with cooling of propulsion units
- B60K11/02—Arrangement in connection with cooling of propulsion units with liquid cooling
- B60K11/04—Arrangement or mounting of radiators, radiator shutters, or radiator blinds
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L50/00—Electric propulsion with power supplied within the vehicle
- B60L50/50—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells
- B60L50/70—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells using power supplied by fuel cells
- B60L50/71—Arrangement of fuel cells within vehicles specially adapted for electric vehicles
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M8/00—Fuel cells; Manufacture thereof
- H01M8/04—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids
- H01M8/04007—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids related to heat exchange
- H01M8/04029—Heat exchange using liquids
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K1/00—Arrangement or mounting of electrical propulsion units
- B60K2001/003—Arrangement or mounting of electrical propulsion units with means for cooling the electrical propulsion units
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K1/00—Arrangement or mounting of electrical propulsion units
- B60K2001/003—Arrangement or mounting of electrical propulsion units with means for cooling the electrical propulsion units
- B60K2001/006—Arrangement or mounting of electrical propulsion units with means for cooling the electrical propulsion units the electric motors
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Energy (AREA)
- Sustainable Development (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Power Engineering (AREA)
- Combustion & Propulsion (AREA)
- Manufacturing & Machinery (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Fuel Cell (AREA)
Abstract
The invention relates to the technical field of vehicle thermal management, and discloses a whole vehicle thermal management system for recovering residual cold, which comprises a hydrogen supply assembly, a cooling assembly, a fuel cell, an electric drive cooling system and a battery cooling system. The vaporizer is connected between the fuel cell and the first radiator and between the electric drive cooling system and the second radiator, so that the residual cold generated when the vaporizer vaporizes liquid hydrogen can be recycled to reduce the temperature of the high-temperature cooling liquid and the medium-temperature cooling liquid, thereby reducing the heat dissipation burden of the first radiator and the second radiator and reducing the gas consumption of the whole vehicle. Because the heat absorption of the vaporizer in the process of vaporizing liquid hydrogen can lead to the low temperature of air around the vaporizer, and the third radiator is positioned towards the vaporizer, the residual cold generated by the vaporizer can assist the third radiator to dissipate heat, so that the heat dissipation efficiency is improved, the low-temperature cooling liquid output by the battery cooling system is quickly dissipated, the residual cold of the vaporizer is further recycled, and the gas consumption of the whole vehicle is reduced.
Description
Technical Field
The invention relates to the technical field of vehicle thermal management, in particular to a whole vehicle thermal management system for recovering residual cold.
Background
In recent years, fuel cell vehicles have become an important component of new energy vehicles, wherein hydrogen is the main fuel of fuel cell vehicles, and pollution to the environment is far less than petroleum and coal, and is a recognized green energy source.
Because gaseous hydrogen is not easy to store and has small storage capacity, liquid hydrogen is usually stored, and when in use, the liquid hydrogen is converted into the gaseous hydrogen to provide fuel for the fuel cell. Liquid hydrogen is colorless and odorless transparent liquid (boiling point-253 ℃) liquefied from gaseous hydrogen, and is an important low-temperature liquid fuel. The density of the liquid hydrogen is 70.6kg/m 3, the mass density and the volume density of the liquid hydrogen are far higher than those of high-pressure gaseous hydrogen, and the liquid hydrogen can greatly improve the hydrogen storage capacity under the same hydrogen storage volume.
At present, in the aspect of whole car heat management, a great deal of attention is paid to how to carry out waste heat recovery. In the case of the thermal management system of the fuel cell vehicle, compared with the internal combustion engine, the heat dissipation requirement of the fuel cell engine with the same power is higher, and the required fan air volume is larger, so that the heat dissipation efficiency of the fuel cell engine is improved, and meanwhile, the problem to be solved is that less air consumption is utilized as much as possible.
Disclosure of Invention
Based on the problems, the invention aims to provide a whole vehicle thermal management system for recovering residual cold, which can realize residual cold recovery and assist in heat dissipation of a fuel cell, an electric drive cooling system and a battery cooling system so as to reduce the whole vehicle thermal management energy consumption.
In order to achieve the above purpose, the invention adopts the following technical scheme:
The utility model provides a surplus cold recovery whole car thermal management system, including hydrogen supply assembly, cooling module, fuel cell, electricity drive cooling system and battery cooling system, hydrogen supply assembly includes liquid hydrogen storage device and vaporizer, vaporizer can be with the liquid hydrogen vaporization in the liquid hydrogen storage device for hydrogen to fuel for fuel cell provides fuel;
The cooling assembly comprises a first radiator, a second radiator and a third radiator which are sequentially stacked, the first radiator faces the fuel cell, the third radiator faces the vaporizer, the fuel cell, the vaporizer and the first radiator are sequentially connected end to end, the electric drive cooling system, the vaporizer and the second radiator are sequentially connected end to end, and the battery cooling system is connected end to end with the third radiator.
As a preferable scheme of the whole vehicle thermal management system for recovering residual cold, the vaporizer is provided with a hydrogen flow path and a cooling flow path, one end of the hydrogen flow path is communicated with the liquid hydrogen storage device, the other end of the hydrogen flow path is communicated with the fuel cell, and a cooling liquid output end of the fuel cell and a cooling liquid output end of the electric drive cooling system are both communicated with the cooling flow path.
As the preferable scheme of the whole heat management system for recovering the residual cold, the whole heat management system for recovering the residual cold further comprises a first cooling loop, wherein two ends of the first cooling loop are respectively connected with a cooling liquid output end and a cooling liquid input end of the fuel cell, the first radiator is arranged on the first cooling loop, and the vaporizer is communicated with the first cooling loop through the cooling flow path.
As the preferable scheme of the whole vehicle thermal management system for recovering the residual cold, the whole vehicle thermal management system for recovering the residual cold further comprises a second cooling loop, two ends of the second cooling loop are respectively connected with a cooling liquid output end and a cooling liquid input end of the electric drive cooling system, the second radiator is arranged on the second cooling loop, and the vaporizer is communicated with the second cooling loop through the cooling flow path.
As the preferable scheme of the whole heat management system for recovering the residual cold, the whole heat management system for recovering the residual cold further comprises a hydrogen supply loop, one end of the hydrogen supply loop is connected with the liquid hydrogen storage device, the other end of the hydrogen supply loop is connected with the fuel cell, and the vaporizer is communicated with the hydrogen supply loop through the hydrogen flow path.
As an optimal scheme of the whole vehicle heat management system for recovering residual cold, a buffer device is arranged on the hydrogen supply loop, and the buffer device is positioned between the vaporizer and the fuel cell.
As the preferable scheme of the whole vehicle thermal management system for recovering the residual cold, the hydrogen supply loop is also provided with a control valve assembly, the control valve assembly comprises a valve and a controller which are connected, and the controller is used for controlling the opening degree of the valve so as to regulate the flow of liquid hydrogen in the hydrogen supply loop.
As the preferable scheme of the whole vehicle heat management system for recovering the residual cold, the whole vehicle heat management system for recovering the residual cold further comprises a third cooling loop, two ends of the third cooling loop are respectively connected with a cooling liquid input end and a cooling liquid output end of the battery cooling system, and the third radiator is arranged on the third cooling loop.
As the preferable scheme of the whole vehicle heat management system for recovering the residual cold, the cooling assembly further comprises a fan assembly, and the fan assembly is arranged between the vaporizer and the third radiator.
As the preferable scheme of the whole heat management system for recovering the residual cold, the whole heat management system for recovering the residual cold further comprises a frame structure, wherein the frame structure is fixed on a frame of the whole vehicle, and the liquid hydrogen storage device is arranged in the frame structure.
The beneficial effects of the invention are as follows:
According to the residual cooling recovery whole vehicle thermal management system provided by the invention, the fuel cell, the vaporizer and the first radiator are sequentially connected end to end, so that the high-temperature cooling liquid output in the fuel cell can be firstly introduced into the vaporizer for heat exchange so as to reduce the temperature of the high-temperature cooling liquid, the cooled high-temperature cooling liquid is introduced into the first radiator for heat dissipation, and the cooled high-temperature cooling liquid is introduced into the fuel cell for recycling when the temperature of the high-temperature cooling liquid is reduced to a preset temperature value. Similarly, because the electric drive cooling system, the vaporizer and the second radiator are connected end to end in sequence, the medium-temperature cooling liquid output in the electric drive cooling system can be firstly introduced into the vaporizer for heat exchange so as to reduce the temperature of the medium-temperature cooling liquid, the cooled medium-temperature cooling liquid is introduced into the second radiator for heat dissipation, and the medium-temperature cooling liquid is introduced into the electric drive cooling system for recycling when the temperature of the medium-temperature cooling liquid is reduced to a preset temperature value.
According to the invention, the vaporizer is connected between the fuel cell and the first radiator and between the electric drive cooling system and the second radiator, so that the residual cold generated when the vaporizer vaporizes liquid hydrogen can be recycled to reduce the temperature of the high-temperature cooling liquid and the medium-temperature cooling liquid, thereby reducing the heat dissipation burden of the first radiator and the second radiator, and further reducing the gas consumption of the whole vehicle. In addition, because the heat absorption in the vaporization process of the vaporizer can lead to the air temperature around the vaporizer to be very low, and the first radiator, the second radiator and the third radiator are sequentially overlapped, the third radiator is positioned towards the vaporizer, the residual heat generated by the vaporizer can assist the third radiator to dissipate heat, the heat dissipation efficiency is improved, the low-temperature cooling liquid output by the battery cooling system is quickly dissipated, the residual heat of the vaporizer is further recycled, and the gas consumption of the whole vehicle is reduced.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following description will briefly explain the drawings needed in the description of the embodiments of the present invention, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings may be obtained according to the contents of the embodiments of the present invention and these drawings without inventive effort for those skilled in the art.
Fig. 1 is a schematic structural diagram of a whole vehicle thermal management system for recovering residual cold according to an embodiment of the present invention.
In the figure:
1-a hydrogen supply assembly; 2-a cooling assembly; 3-a fuel cell; 4-an electrically driven cooling system; 5-battery cooling system; 6-a first cooling circuit; 7-a second cooling circuit; 8-a third cooling circuit; 9-a hydrogen supply circuit; 10-frame structure;
11-a liquid hydrogen storage device; 12-vaporizer; 13-a buffer device; 14-a control valve assembly;
121-a hydrogen flow path; 122-cooling flow path;
141-valve; 142-a controller;
21-a first heat sink; 22-a second heat sink; 23-a third heat sink; 24-fan assembly.
Detailed Description
In order to make the technical problems solved by the present invention, the technical solutions adopted and the technical effects achieved more clear, the technical solutions of the embodiments of the present invention will be described in further detail below with reference to the accompanying drawings, and it is obvious that the described embodiments are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to fall within the scope of the invention.
In the description of the present invention, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. Wherein the terms "first position" and "second position" are two different positions.
In the description of the present invention, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixed or removable, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.
As shown in fig. 1, the embodiment provides a whole vehicle thermal management system for recovering residual cold, which can be applied to a new energy vehicle of a fuel cell of hydrogen fuel. The residual cold recovery whole vehicle thermal management system comprises a hydrogen supply assembly 1, a cooling assembly 2, a fuel cell 3, an electric drive cooling system 4 and a battery cooling system 5.
Wherein the hydrogen supply assembly 1 comprises a liquid hydrogen storage device 11 and a vaporizer 12, the vaporizer 12 being capable of vaporizing liquid hydrogen in the liquid hydrogen storage device 11 into hydrogen gas to provide fuel for the fuel cell 3. The cooling assembly 2 comprises a first radiator 21, a second radiator 22 and a third radiator 23 which are sequentially stacked, wherein the first radiator 21 faces the fuel cell 3, the third radiator 23 faces the vaporizer 12, the fuel cell 3, the vaporizer 12 and the first radiator 21 are sequentially connected end to end, the electric drive cooling system 4, the vaporizer 12 and the second radiator 22 are sequentially connected end to end, and the battery cooling system 5 and the third radiator 23 are sequentially connected end to end.
In the whole-vehicle thermal management system for recycling residual cold provided by the embodiment, since the fuel cell 3, the vaporizer 12 and the first radiator 21 are sequentially connected end to end, the high-temperature cooling liquid output in the fuel cell 3 can be introduced into the vaporizer 12 for heat exchange so as to reduce the temperature of the high-temperature cooling liquid, the cooled high-temperature cooling liquid is introduced into the first radiator 21 for heat dissipation, and the cooled high-temperature cooling liquid is introduced into the fuel cell 3 for recycling when the temperature of the high-temperature cooling liquid is reduced to a preset temperature value. Similarly, since the electric drive cooling system 4, the vaporizer 12 and the second radiator 22 are connected end to end in sequence, the medium-temperature cooling liquid output from the electric drive cooling system 4 can be introduced into the vaporizer 12 for heat exchange to reduce the temperature of the medium-temperature cooling liquid, and the cooled medium-temperature cooling liquid is introduced into the second radiator 22 for heat dissipation, and then introduced into the electric drive cooling system 4 for recycling when the temperature of the medium-temperature cooling liquid is reduced to a preset temperature value.
According to the residual cooling recovery whole vehicle heat management system, the evaporator 12 is connected between the fuel cell 3 and the first radiator 21, and the evaporator 12 is connected between the electric drive cooling system 4 and the second radiator 22, so that the residual cooling generated when the evaporator 12 evaporates liquid hydrogen is recovered and utilized to reduce the temperature of high-temperature cooling liquid and medium-temperature cooling liquid, the heat dissipation burden of the first radiator 21 and the second radiator 22 is reduced, and the gas consumption of the whole vehicle can be reduced. In addition, because the temperature of the air around the vaporizer 12 is low due to heat absorption in the vaporization process of the vaporizer 12, and the first radiator 21, the second radiator 22 and the third radiator 23 are sequentially stacked, the third radiator 23 is located at a position facing the vaporizer 12, so that the residual heat generated by the vaporizer 12 can assist the third radiator 23 to dissipate heat, the heat dissipation efficiency is improved, the low-temperature cooling liquid output by the battery cooling system 5 is quickly dissipated, the residual heat of the vaporizer 12 is further recycled, and the gas consumption of the whole vehicle is reduced.
The high-temperature coolant is the coolant in the fuel cell 3, the temperature is generally higher than 80 degrees, the medium-temperature coolant is the coolant in the electric drive cooling system 4, the coolant in the electric drive bridge is generally the coolant, and the temperature is generally 65 degrees. The low-temperature coolant is generally a refrigerant in the battery cooling system 5, and the temperature is generally 35 degrees or higher.
Alternatively, referring to fig. 1, the vaporizer 12 has a hydrogen flow path 121 and a cooling flow path 122, one end of the hydrogen flow path 121 communicates with the liquid hydrogen storage device 11, the other end communicates with the fuel cell 3, and both the cooling liquid output end of the fuel cell 3 and the cooling liquid output end of the electric drive cooling system 4 communicate with the cooling flow path 122. That is, the vaporizer 12 is divided into two flow paths, one of which is the hydrogen flow path 121, for flowing the liquid hydrogen flowing out of the liquid hydrogen storage device 11. The other path is a cooling flow path 122 for circulating the high-temperature cooling liquid flowing out of the fuel cell 3 and the medium-temperature cooling liquid flowing out of the electric drive cooling system 4, and the cooling flow path 122 and the hydrogen flow path 121 exchange heat in the vaporizer 12, so that the purpose of cooling the high-temperature cooling liquid and the medium-temperature cooling liquid is achieved. In this embodiment, vaporizer 12 is preferably a water bath vaporizer.
Optionally, referring to fig. 1, the whole heat management system for recovering residual cold further includes a first cooling circuit 6, two ends of the first cooling circuit 6 are respectively connected to a cooling liquid output end and a cooling liquid input end of the fuel cell 3, a first radiator 21 is disposed on the first cooling circuit 6, and the vaporizer 12 is communicated with the first cooling circuit 6 through a cooling flow path 122. In the present embodiment, the evaporator 12 is located upstream of the first radiator 21, and the flow direction of the coolant is shown by the arrow direction in fig. 1. The high-temperature cooling liquid flowing out of the fuel cell 3 exchanges heat with the hydrogen flow path 121 through the cooling flow path 122 of the vaporizer 12 for pre-cooling, and the cooled high-temperature cooling liquid enters the first radiator 21 for heat dissipation, and flows back into the fuel cell 3 through the cooling liquid input end of the fuel cell 3 after heat dissipation is completed so as to recycle the cooling liquid. Preferably, the first radiator 21 is a tube fin radiator, and has a large heat exchange contact area and high heat exchange efficiency.
With continued reference to fig. 1, optionally, the whole heat management system for recovering residual cold further includes a second cooling circuit 7, two ends of the second cooling circuit 7 are respectively connected to a cooling liquid output end and a cooling liquid input end of the electric drive cooling system 4, a second radiator 22 is disposed on the second cooling circuit 7, and the vaporizer 12 is communicated with the second cooling circuit 7 through a cooling flow path 122. In this embodiment, the evaporator 12 is located upstream of the second radiator 22, and the coolant flow direction is shown by the arrow direction in fig. 1. The medium-temperature cooling liquid flowing out of the electric drive cooling system 4 exchanges heat with the hydrogen flow path 121 through the cooling flow path 122 of the vaporizer 12 for pre-cooling, the pre-cooled medium-temperature cooling liquid enters the second radiator 22 for heat dissipation, and the heat dissipation is finished and then flows back into the electric drive cooling system 4 for recycling the cooling liquid. Preferably, the second radiator 22 is also a tube-fin radiator, so that the heat exchange contact area is large, and the heat exchange efficiency is high.
Optionally, referring to fig. 1, the whole heat management system for recovering residual cold further includes a hydrogen supply loop 9, one end of the hydrogen supply loop 9 is connected to the liquid hydrogen storage device 11, the other end is connected to the fuel cell 3, and the vaporizer 12 is communicated with the hydrogen supply loop 9 through a hydrogen flow path 121. The liquid hydrogen in the liquid hydrogen storage device 11 is firstly introduced into a hydrogen flow path 121 of the vaporizer 12 for vaporization through the hydrogen supply loop 9, and the hydrogen formed after vaporization is subjected to pressure regulation and then introduced into the fuel cell 3 for combustion through the hydrogen supply loop 9, so that kinetic energy is provided for the whole vehicle engine, and the flow direction of the hydrogen is shown as an arrow direction in fig. 1. The liquid hydrogen storage device 11 may be a liquid hydrogen bottle dedicated to storing liquid hydrogen.
Further, the hydrogen supply loop 9 is provided with a buffer device 13, the buffer device 13 is located between the vaporizer 12 and the fuel cell 3, and is used for buffering vaporized hydrogen, so that the uniform and stable flow of the hydrogen introduced into the fuel cell 3 is ensured, and the use safety of the fuel cell 3 is improved. The buffer device 13 may be a buffer tank dedicated to buffer gas.
Optionally, referring to fig. 1, a control valve assembly 14 is further disposed on the hydrogen supply circuit 9, and the control valve assembly 14 includes a valve 141 and a controller 142 connected to each other, where the controller 142 is configured to control the opening of the valve 141 to regulate the flow rate of the liquid hydrogen in the hydrogen supply circuit 9. The fuel supply to the fuel cell 3 can be controlled by adjusting the flow of liquid hydrogen to meet the different kinetic energy demands of the engine. The controller 142 may be a control button directly connected to the valve 141, and the opening degree of the valve 141 may be selected by the control button. The controller 142 may also be a control circuit board (the control circuit board may be integrated on the vehicle controller) communicatively connected to the valve 141, and the opening of the valve 141 may be remotely controlled through the control circuit board.
Optionally, referring to fig. 1, the cooling assembly 2 further includes a fan assembly 24, the fan assembly 24 being disposed between the carburetor 12 and the third radiator 23. Because the fan assembly 24 is located near the carburetor 12, and the heat absorbed during vaporization of the carburetor 12, the temperature of the air surrounding the carburetor 12 is low. Therefore, the low temperature air around the carburetor 12 can be utilized in the air suction process after the fan assembly 24 is started, so that the cooling efficiency of the fan assembly 24 to the third radiator 23, the second radiator 22 and the first radiator 21 is improved. The fan assembly 24 can reuse the surplus cold generated by the carburetor 12, and can realize synchronous air cooling of the first radiator 21, the second radiator 22 and the third radiator 23.
Optionally, referring to fig. 1, the whole vehicle thermal management system for recovering residual cold further includes a third cooling circuit 8, two ends of the third cooling circuit 8 are respectively connected with a cooling liquid input end and a cooling liquid output end of the battery cooling system 5, and a third radiator 23 is disposed on the third cooling circuit 8, and a flowing direction of the cooling liquid is shown as an arrow direction in fig. 1. The low-temperature cooling liquid flowing out of the battery cooling system 5 directly enters the third radiator 23 to radiate heat, and after the radiation is completed, the low-temperature cooling liquid flows back into the battery cooling system 5 to be reused. The second radiator 22 is preferably a tube fin radiator, and has a large heat exchange contact area and high heat exchange efficiency.
Since the coolant in the battery cooling system 5 is a refrigerant, heat cannot be exchanged with the hydrogen passage 121 through the cooling passage 122 of the carburetor 12. However, the first radiator 21, the second radiator 22 and the third radiator 23 are stacked in sequence, and the third radiator 23 faces the fan assembly 24, and the arrangement mode can enable the fan assembly 24 to directly blow to the third radiator 23, so that the residual cold generated by the vaporizer 12 is recycled again, the heat dissipation efficiency of the third radiator 23 is improved, the air consumption of the whole vehicle can be further reduced, and the residual cold generated by the vaporizer 12 is fully utilized.
Optionally, referring to fig. 1, the whole heat management system for recovering residual heat further includes a frame structure 10, the frame structure 10 is fixed on a frame of the whole vehicle, and the liquid hydrogen storage device 11 is installed in the frame structure 10. In this embodiment, the frame structure 10 is fixed above the vehicle frame to ensure the installation stability of the liquid hydrogen storage device 11.
In the present embodiment, the electric drive cooling system 4 is taken as an example to calculate the reduction amount of the gas consumption of the whole vehicle.
The temperature of the coolant (intermediate-temperature coolant) output from the electric drive cooling system 4 is generally 65 ℃, and the temperature at which the intermediate-temperature coolant flows into the carburetor 12 is set to 60 ℃ in consideration of heat loss in the second cooling circuit 7. The specific heat capacity of the liquid hydrogen is 87.67kJ/kg ℃, the specific heat capacity of the vaporization critical point of the liquid hydrogen at minus 253 ℃ is 460.44kJ/kg ℃, and the specific heat capacity of the gas hydrogen at 60 ℃ is 4436.41kJ/kg ℃.
Assuming that the gas consumption of the fuel cell vehicle model under the rated working condition is 20.7kg/h, the gas consumption after conversion into second system is as follows:
m＝(20.7kg/h)/360＝0.00575kg/s。
the heat absorbed during the vaporization of liquid hydrogen is then:
W1＝(0.00575kg/s)×[(4436.41-460.44)kJ/kg]＝22.9kw。
the heat dissipation amount absorbed in the two-phase conversion state of liquid hydrogen from liquid phase to vapor phase is:
W2＝(0.00575kg/s)×[(460.44-87.67)kJ/kg]＝2.1kw。
the total heat absorbed by the liquid hydrogen in the vaporizer 12 is:
W＝W1+W2＝22.9kw+2.1kw＝25kw。
Assuming that the heat dissipation capacity of the fuel cell3 with an effective power of 80kw is 85kw, the heat dissipation capacity of the residual cold generated after the liquid hydrogen is vaporized by the vaporizer 12, which can be directly offset, is: 25kw/85 kw=29.4%.
If the power consumption of the fan assembly 24 is also calculated in equal proportion, the residual cooling recovered by the fan assembly 24 may also offset 29.4% of the heat dissipation.
That is, the system for recovering the residual cold can effectively reduce the gas consumption of the whole vehicle by recovering and utilizing the residual cold generated by the vaporizer 12.
Note that the above is only a preferred embodiment of the present invention and the technical principle applied. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, while the invention has been described in connection with the above embodiments, the invention is not limited to the embodiments, but may be embodied in many other equivalent forms without departing from the spirit or scope of the invention, which is set forth in the following claims.
Claims (7)
1. The whole-vehicle residual-cold recovery thermal management system is characterized by comprising a hydrogen supply assembly (1), a cooling assembly (2), a fuel cell (3), an electric drive cooling system (4) and a battery cooling system (5), wherein the hydrogen supply assembly (1) comprises a liquid hydrogen storage device (11) and a vaporizer (12), and the vaporizer (12) can vaporize liquid hydrogen in the liquid hydrogen storage device (11) into hydrogen gas so as to provide fuel for the fuel cell (3);
The cooling assembly (2) comprises a first radiator (21), a second radiator (22) and a third radiator (23) which are sequentially stacked, wherein the first radiator (21) faces the fuel cell (3), the third radiator (23) faces the vaporizer (12), the fuel cell (3), the vaporizer (12) and the first radiator (21) are sequentially connected end to end, the electric drive cooling system (4), the vaporizer (12) and the second radiator (22) are sequentially connected end to end, and the battery cooling system (5) and the third radiator (23) are sequentially connected end to end;
The vaporizer (12) is provided with a hydrogen flow path (121) and a cooling flow path (122), one end of the hydrogen flow path (121) is communicated with the liquid hydrogen storage device (11), the other end of the hydrogen flow path is communicated with the fuel cell (3), and a cooling liquid output end of the fuel cell (3) and a cooling liquid output end of the electric drive cooling system (4) are both communicated with the cooling flow path (122);
the residual heat recovery whole vehicle thermal management system further comprises a first cooling loop (6), wherein two ends of the first cooling loop (6) are respectively connected with a cooling liquid output end and a cooling liquid input end of the fuel cell (3), the first radiator (21) is arranged on the first cooling loop (6), and the vaporizer (12) is communicated with the first cooling loop (6) through the cooling flow path (122);
The whole car thermal management system is retrieved to afterheat still includes second cooling circuit (7), the both ends of second cooling circuit (7) are connected respectively cooling fluid output and the cooling fluid input of electric drive cooling system (4), second radiator (22) set up in on second cooling circuit (7), vaporizer (12) pass through cooling flow path (122) with second cooling circuit (7) intercommunication.
2. The residual heat recovery whole vehicle thermal management system according to claim 1, further comprising a hydrogen supply circuit (9), wherein one end of the hydrogen supply circuit (9) is connected to the liquid hydrogen storage device (11), the other end is connected to the fuel cell (3), and the vaporizer (12) is communicated with the hydrogen supply circuit (9) through the hydrogen flow path (121).
3. The whole waste heat recovery and thermal management system according to claim 2, wherein a buffer device (13) is arranged on the hydrogen supply loop (9), and the buffer device (13) is positioned between the vaporizer (12) and the fuel cell (3).
4. The whole waste heat recovery vehicle thermal management system according to claim 2, wherein the hydrogen supply loop (9) is further provided with a control valve assembly (14), the control valve assembly (14) comprises a valve (141) and a controller (142) which are connected, and the controller (142) is used for controlling the opening degree of the valve (141) so as to regulate the flow rate of liquid hydrogen in the hydrogen supply loop (9).
5. The residual heat recovery whole vehicle thermal management system according to any one of claims 1-4, further comprising a third cooling circuit (8), wherein two ends of the third cooling circuit (8) are respectively connected with a cooling liquid input end and a cooling liquid output end of the battery cooling system (5), and the third radiator (23) is disposed on the third cooling circuit (8).
6. The total heat recovery vehicle management system according to any one of claims 1-4, wherein the cooling assembly (2) further comprises a fan assembly (24), the fan assembly (24) being disposed between the evaporator (12) and the third radiator (23).
7. The residual heat recovery whole vehicle thermal management system according to any one of claims 1-4, further comprising a frame structure (10), wherein the frame structure (10) is fixed on a vehicle frame of the whole vehicle, and the liquid hydrogen storage device (11) is installed in the frame structure (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210677854.8A CN115092014B (en) | 2022-06-15 | 2022-06-15 | Whole car thermal management system is retrieved to surplus cold |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210677854.8A CN115092014B (en) | 2022-06-15 | 2022-06-15 | Whole car thermal management system is retrieved to surplus cold |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115092014A CN115092014A (en) | 2022-09-23 |
| CN115092014B true CN115092014B (en) | 2024-05-14 |
Family
ID=83290522
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210677854.8A Active CN115092014B (en) | 2022-06-15 | 2022-06-15 | Whole car thermal management system is retrieved to surplus cold |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115092014B (en) |
Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2327593A1 (en) * | 2000-02-16 | 2001-08-16 | General Motors Corporation | Thermal management of fuel cell powered vehicles |
| JP2002373690A (en) * | 2001-06-14 | 2002-12-26 | Nissan Motor Co Ltd | Fuel cell system |
| WO2013139104A1 (en) * | 2012-03-22 | 2013-09-26 | 中国东方电气集团有限公司 | Thermal management system for fuel cell, and fuel cell system and vehicle having same |
| CN108461868A (en) * | 2018-03-13 | 2018-08-28 | 浙江吉利汽车研究院有限公司 | Automotive thermal tube manages system and automobile |
| CN109278590A (en) * | 2018-09-28 | 2019-01-29 | 奇瑞汽车股份有限公司 | A kind of hydrogen cell automobile heat management system |
| CN109466380A (en) * | 2018-11-28 | 2019-03-15 | 北汽福田汽车股份有限公司 | The heat management system of Hydrogen Fuel-cell Vehicles and vehicle with it |
| CN110171553A (en) * | 2019-05-17 | 2019-08-27 | 武汉理工大学 | A kind of hydrogen fuel cell Power Vessel waste heat comprehensive utilization system |
| CN111619306A (en) * | 2020-04-21 | 2020-09-04 | 清华大学 | Energy comprehensive utilization system |
| CN112389276A (en) * | 2020-11-25 | 2021-02-23 | 中国第一汽车股份有限公司 | Thermal management system of pure electric vehicle |
| CN113071286A (en) * | 2021-04-21 | 2021-07-06 | 吉林大学 | Fuel cell automobile integrated thermal management system based on heat pump air conditioner and control method |
| CN113665318A (en) * | 2021-08-31 | 2021-11-19 | 中国第一汽车股份有限公司 | Control system and method for power battery of plug-in hybrid vehicle |
| CN215771222U (en) * | 2021-08-31 | 2022-02-08 | 北汽福田汽车股份有限公司 | Cooling system of fuel cell and vehicle with cooling system |
| CN114274843A (en) * | 2021-11-03 | 2022-04-05 | 浙江大学杭州国际科创中心 | Vehicle-mounted battery and electronic control cooling system based on liquid hydrogen vaporization cold energy utilization |
-
2022
- 2022-06-15 CN CN202210677854.8A patent/CN115092014B/en active Active
Patent Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2327593A1 (en) * | 2000-02-16 | 2001-08-16 | General Motors Corporation | Thermal management of fuel cell powered vehicles |
| JP2002373690A (en) * | 2001-06-14 | 2002-12-26 | Nissan Motor Co Ltd | Fuel cell system |
| WO2013139104A1 (en) * | 2012-03-22 | 2013-09-26 | 中国东方电气集团有限公司 | Thermal management system for fuel cell, and fuel cell system and vehicle having same |
| CN108461868A (en) * | 2018-03-13 | 2018-08-28 | 浙江吉利汽车研究院有限公司 | Automotive thermal tube manages system and automobile |
| CN109278590A (en) * | 2018-09-28 | 2019-01-29 | 奇瑞汽车股份有限公司 | A kind of hydrogen cell automobile heat management system |
| CN109466380A (en) * | 2018-11-28 | 2019-03-15 | 北汽福田汽车股份有限公司 | The heat management system of Hydrogen Fuel-cell Vehicles and vehicle with it |
| CN110171553A (en) * | 2019-05-17 | 2019-08-27 | 武汉理工大学 | A kind of hydrogen fuel cell Power Vessel waste heat comprehensive utilization system |
| CN111619306A (en) * | 2020-04-21 | 2020-09-04 | 清华大学 | Energy comprehensive utilization system |
| CN112389276A (en) * | 2020-11-25 | 2021-02-23 | 中国第一汽车股份有限公司 | Thermal management system of pure electric vehicle |
| CN113071286A (en) * | 2021-04-21 | 2021-07-06 | 吉林大学 | Fuel cell automobile integrated thermal management system based on heat pump air conditioner and control method |
| CN113665318A (en) * | 2021-08-31 | 2021-11-19 | 中国第一汽车股份有限公司 | Control system and method for power battery of plug-in hybrid vehicle |
| CN215771222U (en) * | 2021-08-31 | 2022-02-08 | 北汽福田汽车股份有限公司 | Cooling system of fuel cell and vehicle with cooling system |
| CN114274843A (en) * | 2021-11-03 | 2022-04-05 | 浙江大学杭州国际科创中心 | Vehicle-mounted battery and electronic control cooling system based on liquid hydrogen vaporization cold energy utilization |
Also Published As
| Publication number | Publication date |
|---|---|
| CN115092014A (en) | 2022-09-23 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109466380B (en) | Thermal management system of hydrogen fuel cell vehicle and vehicle with same | |
| CN101576024B (en) | Heat returning closed cooling recirculation system of Brighton scramjet | |
| CN111648833B (en) | Liquefied air energy storage system for improving frequency modulation performance by utilizing gas buffer device | |
| CN110171553B (en) | Comprehensive utilization system for waste heat of hydrogen fuel cell power ship | |
| US11358493B2 (en) | Fuel cell vehicle thermal management system and method for managing fuel cell thermal loads | |
| CN114604056A (en) | Whole-vehicle thermal management system of fuel cell vehicle | |
| CN116190706A (en) | Vehicle-mounted liquid hydrogen gasification hydrogen supply system and control method thereof | |
| KR101683715B1 (en) | Pre-cooler for hydrogen filling device | |
| CN115092014B (en) | Whole car thermal management system is retrieved to surplus cold | |
| WO2024067838A1 (en) | Battery heat exchange module, thermal management system, and vehicle | |
| Liu et al. | A review of thermal coupling system of fuel cell-metal hydride tank: Classification, control strategies, and prospect in distributed energy system | |
| Jin et al. | Simulation of battery simultaneous cooling based on the dual fluid medium system | |
| US20110262842A1 (en) | System and method for storing and discharging heat in a vehicle | |
| KR102504903B1 (en) | Liquefied hydrogen vaporization and fuel cell vehicle cooling system | |
| KR20200142150A (en) | Switching Method of Refueling System from Gas phase based to multi-phase based refueling | |
| KR102567867B1 (en) | Liquid hydrogen vaporization and integrated thermal management system | |
| JP2005086914A (en) | Electric vehicle provided with superconducting motor | |
| CN212685163U (en) | Heat pump air conditioning system of electric automobile | |
| CN221222349U (en) | Liquefied recovery system for liquid hydrogen | |
| CN220367944U (en) | Heat utilization system based on fuel cell power generation system | |
| CN220439670U (en) | Fuel cell system and unmanned aerial vehicle | |
| KR102374959B1 (en) | Hydrogen fuel cell system using the boil off gas of liquefied hydrogen | |
| CN221585060U (en) | Thermal management control system for power battery of pure electric mine card | |
| KR102599151B1 (en) | Liquid hydrogen vaporization device using heat pump with internal heat exchanger | |
| CN209929449U (en) | Battery package constant temperature system and electric automobile |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |