CN116960405B - Integrated intercooler of hydrogen fuel cell system - Google Patents
Integrated intercooler of hydrogen fuel cell system Download PDFInfo
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- CN116960405B CN116960405B CN202311214078.9A CN202311214078A CN116960405B CN 116960405 B CN116960405 B CN 116960405B CN 202311214078 A CN202311214078 A CN 202311214078A CN 116960405 B CN116960405 B CN 116960405B
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- end cover
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- connecting end
- pipe
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- 239000000446 fuel Substances 0.000 title claims abstract description 32
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 title claims abstract description 25
- 239000001257 hydrogen Substances 0.000 title claims abstract description 25
- 229910052739 hydrogen Inorganic materials 0.000 title claims abstract description 25
- 238000007789 sealing Methods 0.000 claims abstract description 61
- 239000012528 membrane Substances 0.000 claims abstract description 39
- 230000017525 heat dissipation Effects 0.000 claims abstract description 28
- 239000007789 gas Substances 0.000 claims abstract description 25
- 230000007246 mechanism Effects 0.000 claims abstract description 18
- 238000010926 purge Methods 0.000 claims abstract description 18
- 238000000926 separation method Methods 0.000 claims description 26
- 239000007788 liquid Substances 0.000 claims description 19
- 238000005192 partition Methods 0.000 claims description 19
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 15
- 230000006835 compression Effects 0.000 claims description 14
- 238000007906 compression Methods 0.000 claims description 14
- 238000001816 cooling Methods 0.000 claims description 7
- 230000005855 radiation Effects 0.000 claims description 6
- 229910000838 Al alloy Inorganic materials 0.000 claims description 3
- 239000000956 alloy Substances 0.000 claims description 3
- 230000002093 peripheral effect Effects 0.000 claims description 3
- 239000002826 coolant Substances 0.000 description 5
- 230000002776 aggregation Effects 0.000 description 2
- 238000004220 aggregation Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000002349 favourable effect Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000004806 packaging method and process Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000018044 dehydration Effects 0.000 description 1
- 238000006297 dehydration reaction Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 239000000376 reactant Substances 0.000 description 1
- 239000002912 waste gas Substances 0.000 description 1
- 238000009736 wetting Methods 0.000 description 1
Classifications
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- 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
- H01M8/04082—Arrangements for control of reactant parameters, e.g. pressure or concentration
- H01M8/04089—Arrangements for control of reactant parameters, e.g. pressure or concentration of gaseous reactants
- H01M8/04119—Arrangements for control of reactant parameters, e.g. pressure or concentration of gaseous reactants with simultaneous supply or evacuation of electrolyte; Humidifying or dehumidifying
- H01M8/04126—Humidifying
- H01M8/04149—Humidifying by diffusion, e.g. making use of membranes
-
- 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
-
- 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
- H01M8/04067—Heat exchange or temperature measuring elements, thermal insulation, e.g. heat pipes, heat pumps, fins
- H01M8/04074—Heat exchange unit structures specially adapted for fuel cell
-
- 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
- H01M8/04082—Arrangements for control of reactant parameters, e.g. pressure or concentration
- H01M8/04089—Arrangements for control of reactant parameters, e.g. pressure or concentration of gaseous reactants
- H01M8/04111—Arrangements for control of reactant parameters, e.g. pressure or concentration of gaseous reactants using a compressor turbine assembly
-
- 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
- H01M8/06—Combination of fuel cells with means for production of reactants or for treatment of residues
- H01M8/0662—Treatment of gaseous reactants or gaseous residues, e.g. cleaning
-
- 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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/30—Hydrogen technology
- Y02E60/50—Fuel cells
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Fuel Cell (AREA)
Abstract
The invention relates to the technical field of fuel cells, in particular to an integrated intercooler of a hydrogen fuel cell system, which comprises a membrane humidifier and a connecting end cover, wherein one end of a shell is fixedly connected with a dry gas inlet end of the membrane humidifier through the connecting end cover, a purging port is formed in the connecting end cover, a sealing mechanism is used for sealing a joint of the connecting end cover and the membrane humidifier, the other end of the shell is fixedly connected with an air inlet end cover, an air inlet is formed in the air inlet end cover, the air inlet is communicated with the purging port, a heat dissipation core is fixed in the shell, and a plurality of heat dissipation fins are fixed on the heat dissipation core. The shell and the membrane humidifier are connected through the connecting end cover, so that the intercooler and the membrane humidifier are integrated, a pipeline is not required to be used for connection, the connecting structure and the whole volume are simplified, the connecting end cover is provided with the purging port, high-temperature compressed air is cooled by the radiating core in the shell and then is discharged from the purging port, purging is carried out in the galvanic pile package, and the influence of the high-temperature compressed air on the galvanic pile performance is avoided.
Description
Technical Field
The invention relates to the technical field of fuel cells, in particular to an integrated intercooler of a hydrogen fuel cell system.
Background
As a clean, environment-friendly and efficient energy conversion device, the fuel cell is increasingly valued by various countries along with the gradual maturity of the fuel cell technology, and the application range of the fuel cell is also wider. The Proton Exchange Membrane Fuel Cell (PEMFC) has the advantages of environmental protection, high efficiency, high starting speed, high power density and the like, and is one of main competitors of future traffic power systems, and the proton exchange membrane can obtain good working performance under proper wetting condition. Both the fuel cell air and hydrogen feed needs to be humidified to prevent dehydration of the proton exchange membrane, reducing cell performance and operating life, allowing the fuel cell to operate efficiently. In a plurality of humidification technical routes, the membrane humidifier utilizes the wet waste gas placed by the PEMFC to be recycled for humidifying and heating reactants, and the membrane humidifier has the advantages of stable humidification, strong controllability, large humidification amount, no extra power consumption and the like, so that the membrane humidifier becomes an external humidification technical scheme of the current mainstream. On the other hand, in order to create favorable operating conditions of the stack, air is usually pressurized, the air pressurized by the air compressor usually increases with temperature, and if the high-temperature air passing through the air compressor directly enters the fuel cell stack, the performance and the service life of the stack are affected to some extent, so that an intercooler is usually used to cool before entering the humidifier.
The utility model discloses a take intercooler for fuel cell of bypass that admits air of CN216213570U, including the casing, the inside heat dissipation core that is provided with of casing, a plurality of gas channel and liquid channel have been seted up on the heat dissipation core, the front and back both sides of casing are provided with air inlet chamber and air outlet chamber respectively, and each gas channel communicates air inlet chamber and air outlet chamber, the downside of air inlet chamber is provided with flange, and the flange hole is linked together with air inlet chamber inside, has seted up annular seal groove on the flange, and the right side of air inlet chamber is provided with the intake pipe, and the rear side of air outlet chamber is provided with the outlet duct, the left and right sides of casing all is provided with a hydroecium, and each liquid channel communicates two hydroecium, be provided with feed liquor pipe and drain pipe on the hydroecium; a plurality of mounting brackets are arranged on the shell. However, this patent still suffers from a number of disadvantages: 1. the junction of intercooler and membrane humidifier becomes flexible easily leads to sealed inefficacy, causes gas loss, leads to the intercooler cooling effect poor, and intercooler and membrane humidifier pass through the pipeline connection volume great. 2. After the galvanic pile is packaged, hydrogen aggregation is easy to generate in a packaging shell, the existing air source for purging the hydrogen is high-temperature air which is shunted from an air pump air outlet, and the high-temperature air at the temperature of hundreds of DEG C enters the galvanic pile packaging, so that certain damage is easily caused to a fuel cell system which works at a low temperature, the galvanic pile performance is damaged, and the galvanic pile service life is reduced.
Disclosure of Invention
The invention aims to solve the technical problems that: in order to solve the problem that the cooling performance of the intercooler is insufficient to easily cause high-temperature gas to damage the electric pile, the invention provides an integrated intercooler of a hydrogen fuel cell system to solve the problem.
The technical scheme adopted for solving the technical problems is as follows: the integrated intercooler of the hydrogen fuel cell system comprises a membrane humidifier, wherein the membrane humidifier comprises a dry gas inlet end, a dry gas outlet end, a wet gas inlet end and a wet gas outlet end, and further comprises a connecting end cover, a sealing mechanism, a shell, a heat dissipation core body and an air inlet end cover, wherein one end of the shell is fixedly connected with the dry gas inlet end of the membrane humidifier through the connecting end cover, a purging port is formed in the connecting end cover, the sealing mechanism is used for sealing the connecting end cover and the connecting part of the membrane humidifier, the other end of the shell is fixedly connected with the air inlet end cover, an air inlet is formed in the air inlet end cover, the air inlet is communicated with the purging port, the heat dissipation core body is fixed in the shell, and a plurality of heat dissipation fins are fixed on the heat dissipation core body and used for cooling air fed from the air inlet.
Preferably, the heat dissipation core further comprises a separation tube and two sealing clapboards, the plurality of heat dissipation fins are fixed on the outer peripheral surface of the separation tube at equal intervals, the separation tube is arranged at the center of the shell and is communicated with the air inlet and the connecting end cover, the two sealing clapboards are fixed at two ends of the separation tube, the sealing clapboards are used for sealing gaps between the separation tube and the shell and forming a liquid inlet cavity, and the shell is provided with a water inlet and a water outlet which are communicated with the liquid inlet cavity.
Preferably, a plurality of guide vanes are further arranged in the separation tube, wherein a part of the guide vanes are fixed on the inner wall of the upper half part of the separation tube, the other part of the guide vanes are fixed on the inner wall of the lower half part of the separation tube, and the guide vanes positioned on the upper half part of the separation tube and the guide vanes positioned on the lower half part of the separation tube are arranged at intervals one by one.
Preferably, the separation pipe is internally and fixedly provided with a flow guide pipe, the flow guide pipe vertically penetrates through the plurality of flow guide sheets, one end of the flow guide pipe extends upwards and is communicated into the liquid inlet cavity, the other end of the flow guide pipe extends downwards and is communicated into the liquid inlet cavity, and the water inlet and the water outlet are arranged on two sides of the shell one by one.
Preferably, the sealing mechanism comprises a rectangular sealing ring, four corners of the rectangular sealing ring are arc corners, one side of the sealing ring is clamped with the edge of the dry gas inlet end of the membrane humidifier, and a deformation groove is formed in the other side of the sealing ring.
Preferably, the sealing mechanism further comprises four arc-shaped compression bars, a plurality of telescopic rods and a plurality of sleeves, the four arc-shaped compression bars are abutted against the inner rings of the four corners of the rectangular sealing ring, two ends of each arc-shaped compression bar are hinged to two telescopic rods respectively, two telescopic rods between two adjacent arc-shaped compression bars are slidably mounted at two ends of one sleeve respectively, a through hole is formed in the center of each sleeve, two telescopic rods are located at two sides of the through hole respectively, and the sleeves are fixed on the inner wall of the connecting end cover.
Preferably, the surface of the arc-shaped compression bar is coated with a rubber layer, and the shell, the connecting end cover and the air inlet end cover are made of aluminum alloy materials.
Preferably, a flange plate is fixed on the connecting end cover, and the flange plate is pressed on the membrane humidifier through a plurality of uniformly distributed bolts.
The invention has the beneficial effects that firstly, the shell and the membrane humidifier are connected through the connecting end cover, so that the intercooler and the membrane humidifier are integrated, no pipeline is needed for connection, the connecting structure and the whole volume are simplified, the stability of the intercooler and the membrane humidifier during connection is improved, and gas leakage is prevented.
And secondly, a purging port is formed in the connecting end cover, high-temperature compressed air compressed by the air pump firstly enters the shell and is cooled by the heat dissipation core body in the shell, and then a part of the high-temperature compressed air is discharged from the purging port to purge the inside of the galvanic pile package, so that hydrogen in the galvanic pile package is blown out, and the galvanic pile damage caused by direct purging of the high-temperature compressed air to the galvanic pile package is avoided, and the galvanic pile performance is influenced.
Drawings
The invention will be further described with reference to the drawings and examples.
FIG. 1 is a schematic view of the construction of a preferred embodiment of an integrated intercooler of a hydrogen fuel cell system according to the present invention;
FIG. 2 is a schematic view of the end cap of the hydrogen fuel cell system integrated intercooler of the present invention;
FIG. 3 is a front view of an integrated intercooler of a hydrogen fuel cell system of the present invention;
FIG. 4 is a cross-sectional view at A-A in FIG. 3;
FIG. 5 is an exploded view of an integrated intercooler of a hydrogen fuel cell system according to the present invention;
FIG. 6 is a schematic view of the heat dissipating core of the integrated intercooler of the hydrogen fuel cell system of the present invention;
fig. 7 is a schematic structural view of a seal mechanism of an integrated intercooler of a hydrogen fuel cell system of the present invention.
Reference numerals: 1. a membrane humidifier; 2. a dry gas inlet end; 3. a drying gas outlet end; 4. a moisture inlet end; 5. a moisture outlet end; 6. connecting an end cover; 7. a sealing mechanism; 8. a housing; 9. a heat dissipation core; 10. an air inlet end cover; 11. a purge port; 12. an air inlet; 13. a heat radiation fin; 14. a partition pipe; 15. a sealing separator; 16. a water inlet; 17. a water outlet; 18. a deflector; 19. a flow guiding pipe; 20. a rectangular sealing ring; 21. an arc-shaped compression bar; 22. a telescopic rod; 23. a sleeve; 24. a through hole; 25. and a flange plate.
Detailed Description
Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the invention.
As shown in fig. 1 to 7, the embodiment of the integrated intercooler of the hydrogen fuel cell system provided by the invention comprises a membrane humidifier 1, wherein the membrane humidifier 1 comprises a dry gas inlet end 2, a dry gas outlet end 3, a wet gas inlet end 4, a wet gas outlet end 5, a connecting end cover 6, a sealing mechanism 7, a shell 8, a heat dissipation core 9 and an air inlet end cover 10, one end of the shell 8 is fixedly connected with the dry gas inlet end 2 of the membrane humidifier 1 through the connecting end cover 6, a flange plate 25 is fixedly arranged on the connecting end cover 6, the flange plate 25 is tightly connected with the membrane humidifier 1 through fourteen uniformly distributed bolts to form a whole, the shell 8 is welded and fixed on the connecting end cover 6, the stability of the shell 8 is improved, the connecting end cover 6 is detached together when the shell 8 is detached, the deformation of the shell 8 caused by detachment is avoided, and the sealing performance between the shell 8 and the dry gas inlet end 2 of the membrane humidifier 1 is improved.
The connection end cover 6 is provided with a purging port 11, the other end of the shell 8 is fixedly connected with an air inlet end cover 10, the shell 8, the connection end cover 6 and the air inlet end cover 10 are made of aluminum alloy materials, the air inlet end cover 10 is provided with an air inlet 12, and the air inlet 12 is communicated with the purging port 11. The heat dissipation core 9 is fixed in the shell 8, a plurality of heat dissipation fins 13 are fixed on the heat dissipation core 9, and the heat dissipation core 9 is used for cooling air sent from the air inlet 12. Compressed air compressed by the air pump enters from the air inlet 12 of the shell 8, flows through the heat dissipation core 9 in the shell 8, and transmits heat to the outside of the shell 8 through the heat dissipation fins 13 on the heat dissipation core 9, so that the air entering the shell 8 is reduced to a temperature meeting the air inlet temperature requirement of the fuel cell stack, and then is humidified by the membrane humidifier 1, finally enters the stack, and the fuel cell stack is prevented from being damaged by the too high gas temperature.
The purge port 11 functions as: compressed air conveyed by the air pump firstly enters the shell 8 from the air inlet 12, then is cooled through the heat dissipation core 9, a part of cooled compressed air flows into the dry air inlet end 2 from the connecting end cover 6 and enters the membrane humidifier 1, another part of cooled compressed air directly enters the galvanic pile package from the blowing opening 11, and a small amount of hydrogen in the galvanic pile package is blown by utilizing the cooled compressed air, so that potential safety hazards caused by excessive hydrogen aggregation are prevented on one hand, and the galvanic pile damage caused by the excessive temperature of the compressed air can be prevented on the other hand, so that the galvanic pile performance is influenced.
The heat dissipation core 9 further comprises a separation tube 14 and two sealing partition plates 15, the plurality of heat dissipation fins 13 are fixed on the outer peripheral surface of the separation tube 14 at equal intervals, the separation tube 14 is arranged at the center of the shell 8 and is communicated with the air inlet 12 and the connecting end cover 6, the two sealing partition plates 15 are fixed at two ends of the separation tube 14, the sealing partition plates 15 are used for sealing gaps between the separation tube 14 and the shell 8 and forming a liquid inlet cavity, and the shell 8 is provided with a water inlet 16 and a water outlet 17 which are communicated with the liquid inlet cavity.
Only carry out passive heat dissipation through radiating fin 13, when compressed air flow is great, perhaps unable in time discharge heat, pour into the coolant liquid to the feed liquor intracavity through water inlet 16 this moment, and radiating fin 13 is located the feed liquor intracavity, consequently, can make radiating fin 13 submergence cool off in the coolant liquid, take away the heat on the radiating fin 13 fast through the coolant liquid, and then make radiating core 9 still can keep the cooling effect when compressed air flow is great, the coolant liquid is separated by separating tube 14 simultaneously, avoid the coolant liquid direct to contact with dry compressed air, be favorable to controlling compressed air's humidity.
A plurality of guide vanes 18 are further arranged in the partition pipe 14, wherein one part of the guide vanes 18 are fixed on the inner wall of the upper half part of the partition pipe 14, the other part of the guide vanes 18 are fixed on the inner wall of the lower half part of the partition pipe 14, and the guide vanes 18 positioned on the upper half part of the partition pipe 14 and the guide vanes 18 positioned on the lower half part of the partition pipe 14 are arranged at intervals one by one. That is, the plurality of flow deflectors 18 are sequentially arranged along the inside of the partition pipe 14 one by one, a serpentine channel is formed in the partition pipe 14 through the plurality of flow deflectors 18, compressed air advances along the serpentine channel after entering the partition pipe 14 from the air inlet 12, and the flow deflectors 18 increase the contact area between the compressed air and the inner wall of the partition pipe 14 on one hand, and can make the compressed air stay in the partition pipe 14 for a longer time on the other hand, so that the heat dissipation core 9 can fully dissipate heat of the compressed air.
The partition pipe 14 is internally and fixedly provided with a flow guide pipe 19, the flow guide pipe 19 vertically penetrates through the plurality of flow guide sheets 18, one end of the flow guide pipe 19 extends upwards and is communicated into the liquid inlet cavity, the other end of the flow guide pipe 19 extends downwards and is communicated into the liquid inlet cavity, and the water inlet 16 and the water outlet 17 are arranged on two sides of the shell 8 one by one. The flow guide pipe 19 radiates heat inside the partition pipe 14 and the flow guide sheet 18, so that the cooling efficiency of the heat radiation core 9 is improved.
The sealing mechanism 7 is used for sealing the joint of the connecting end cover 6 and the membrane humidifier 1, the sealing mechanism 7 comprises a rectangular sealing ring 20, four corners of the rectangular sealing ring 20 are arc corners, the arc corners are more attached to the inner wall of the connecting end cover 6, one side of the sealing ring is clamped with the edge of the dry gas inlet end 2 of the membrane humidifier 1, and a deformation groove is formed in the other side of the sealing ring.
The sealing mechanism 7 further comprises four arc-shaped compression rods 21, a plurality of telescopic rods 22 and a plurality of sleeves 23, the four arc-shaped compression rods 21 are abutted against the inner rings at the four corners of the rectangular sealing ring 20, the surfaces of the arc-shaped compression rods 21 are coated with rubber layers, the surfaces of the rectangular sealing ring 20 are prevented from being scratched when the arc-shaped compression rods 21 are abutted against the rectangular sealing ring 20, two ends of each arc-shaped compression rod 21 are respectively hinged with two telescopic rods 22, the two telescopic rods 22 between the two adjacent arc-shaped compression rods 21 are respectively and slidably mounted at two ends of one sleeve 23, through holes 24 are formed in the centers of the sleeves 23, the two telescopic rods 22 are respectively located at two sides of the through holes 24, and the sleeves 23 are fixedly arranged on the inner wall of the connecting end cover 6.
The sealing mechanism 7 works in the following principle: when the rectangular sealing ring 20 is pressed, the length of the rectangular sealing ring is easy to change, so that the corners of the rectangular sealing ring 20 can be slightly bent and deformed, and the corners of the rectangular sealing ring 20 cannot be tightly attached to the inner wall of the connecting end cover 6; when the pressure of the transported compressed air is smaller, the pressure provided by the arc-shaped compression bar 21 to the rectangular sealing ring 20 is also smaller, so that the sealing ring can be kept attached to the connecting end cover 6 under the smaller pressure, fatigue failure of the sealing ring caused by overlarge pressure born for a long time is prevented, the better sealing performance of the sealing mechanism 7 when the pressure of the compressed air is larger is realized, and the service life of the sealing mechanism 7 can be prolonged when the pressure of the compressed air is reduced.
In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of terms do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
With the above-described preferred embodiments according to the present invention as an illustration, the above-described descriptions can be used by persons skilled in the relevant art to make various changes and modifications without departing from the scope of the technical idea of the present invention.
Claims (6)
1. The utility model provides a hydrogen fuel cell system integrated intercooler, includes membrane humidifier (1), membrane humidifier (1) are including dry gas inlet (2), dry gas outlet (3), moisture inlet (4) and moisture outlet (5), its characterized in that: the novel membrane humidifier is characterized by further comprising a connecting end cover (6), a sealing mechanism (7), a shell (8), a heat radiation core body (9) and an air inlet end cover (10), wherein one end of the shell (8) is fixedly connected with a dry air inlet end (2) of the membrane humidifier (1) through the connecting end cover (6), a purging opening (11) is formed in the connecting end cover (6), the sealing mechanism (7) is used for sealing a joint of the connecting end cover (6) and the membrane humidifier (1), the other end of the shell (8) is fixedly connected with the air inlet end cover (10), an air inlet (12) is formed in the air inlet end cover (10), the air inlet (12) is communicated with the purging opening (11), the heat radiation core body (9) is fixed in the shell (8), and a plurality of heat radiation fins (13) are fixed on the heat radiation core body (9) and are used for cooling air fed from the air inlet (12);
the sealing mechanism (7) comprises a rectangular sealing ring (20), four corners of the rectangular sealing ring (20) are arc corners, one side of the sealing ring is clamped with the edge of the dry gas inlet end (2) of the membrane humidifier (1), and a deformation groove is formed in the other side of the sealing ring;
sealing mechanism (7) still include four arc depression bar (21), a plurality of telescopic link (22) and a plurality of sleeve pipe (23), four arc depression bar (21) with the inner circle at four angles of rectangle sealing washer (20) supports tightly, every the both ends of arc depression bar (21) respectively with two telescopic link (22) are articulated, two telescopic link (22) between two adjacent arc depression bar (21) respectively slidable mounting at the both ends of a sleeve pipe (23), through-hole (24) have been seted up at the center of sleeve pipe (23), two telescopic link (22) are located the both sides of through-hole (24) respectively, sleeve pipe (23) are fixed the inner wall of connecting end cover (6).
2. The hydrogen fuel cell system integrated intercooler according to claim 1, wherein: the heat dissipation core body (9) further comprises a separation pipe (14) and two sealing partition plates (15), the plurality of heat dissipation fins (13) are fixed on the outer peripheral surface of the separation pipe (14) at equal intervals, the separation pipe (14) is arranged at the center of the shell (8) and communicated with the air inlet (12) and the connecting end cover (6), the two sealing partition plates (15) are fixed at the two ends of the separation pipe (14), the sealing partition plates (15) are used for sealing gaps between the separation pipe (14) and the shell (8) and forming a liquid inlet cavity, and the shell (8) is provided with a water inlet (16) and a water outlet (17) which are communicated with the liquid inlet cavity.
3. The hydrogen fuel cell system integrated intercooler according to claim 2, wherein: the separation pipe (14) is internally provided with a plurality of guide vanes (18), wherein one part of the guide vanes (18) are fixed on the inner wall of the upper half part of the separation pipe (14), the other part of the guide vanes (18) are fixed on the inner wall of the lower half part of the separation pipe (14), and the guide vanes (18) positioned on the upper half part of the separation pipe (14) and the guide vanes (18) positioned on the lower half part of the separation pipe (14) are arranged at intervals one by one.
4. The hydrogen fuel cell system integrated intercooler according to claim 3, wherein: the separator is characterized in that a flow guide pipe (19) is further fixed in the separator pipe (14), the flow guide pipe (19) vertically penetrates through the plurality of flow guide sheets (18), one end of the flow guide pipe (19) extends upwards and is communicated into the liquid inlet cavity, the other end of the flow guide pipe (19) extends downwards and is communicated into the liquid inlet cavity, and the water inlet (16) and the water outlet (17) are arranged on two sides of the shell (8) up and down.
5. The hydrogen fuel cell system integrated intercooler according to claim 1, wherein: the surface of the arc-shaped compression bar (21) is coated with a rubber layer, and the shell (8), the connecting end cover (6) and the air inlet end cover (10) are made of aluminum alloy materials.
6. The hydrogen fuel cell system integrated intercooler according to claim 1, wherein: a flange plate (25) is fixed on the connecting end cover (6), and the flange plate (25) is pressed on the membrane humidifier (1) through a plurality of uniformly distributed bolts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311214078.9A CN116960405B (en) | 2023-09-20 | 2023-09-20 | Integrated intercooler of hydrogen fuel cell system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311214078.9A CN116960405B (en) | 2023-09-20 | 2023-09-20 | Integrated intercooler of hydrogen fuel cell system |
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| CN116960405A (en) | 2023-10-27 |
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