CN112259763A - Humidifier inner core for integrated cooling gas fuel cell and humidifier - Google Patents
Humidifier inner core for integrated cooling gas fuel cell and humidifier Download PDFInfo
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- CN112259763A CN112259763A CN202011256408.7A CN202011256408A CN112259763A CN 112259763 A CN112259763 A CN 112259763A CN 202011256408 A CN202011256408 A CN 202011256408A CN 112259763 A CN112259763 A CN 112259763A
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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
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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
- H01M8/04007—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids related to heat exchange
- H01M8/04014—Heat exchange using gaseous fluids; Heat exchange by combustion of reactants
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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
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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
- H01M8/04298—Processes for controlling fuel cells or fuel cell systems
- H01M8/04694—Processes for controlling fuel cells or fuel cell systems characterised by variables to be controlled
- H01M8/04701—Temperature
- H01M8/04708—Temperature of fuel cell reactants
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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
- 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
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- Life Sciences & Earth Sciences (AREA)
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- Sustainable Energy (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Fuel Cell (AREA)
Abstract
The invention discloses an integrated cooling humidifier inner core for a gas fuel cell and a humidifier, wherein the humidifier inner core comprises an inner core unit, the inner core unit comprises a first gas partition plate, a first humidifying membrane, a second gas partition plate, a third gas partition plate, a second humidifying membrane and a fourth gas partition plate which are sequentially arranged, and a first moisture channel, a first fuel gas channel, a cold air channel, a second fuel gas channel and a second fuel gas channel are sequentially formed. The invention utilizes the cold air to exchange the temperature with the fuel gas, the temperature of the humidified fuel gas is controllable, the structural stability of the gas baffle plate is good, and the invention has simple structure and process, easy processing and low cost.
Description
Technical Field
The invention relates to the technical field of fuel cells, in particular to an integrated cooling humidifier inner core for a gas fuel cell and a humidifier.
Background
Currently, common fuel cells are: polymer electrolyte membrane fuel cells, phosphate fuel cells, alkaline fuel cells, solid oxide fuel cells, molten carbonate fuel cells. The proton exchange membrane fuel cell is one of the polymer electrolyte membrane fuel cells, and is very suitable for being applied to transportation tools due to the advantages of high energy density, high starting speed, long service life and the like, so most of the fuel cells developed by automobile companies focus on the proton exchange membrane fuel cell at present.
The existence of water molecules is required in the operation process of the proton exchange membrane fuel cell, if the fuel cell lacks water, the internal resistance of an electrode is increased, the performance of the cell is reduced, and in order to ensure the transmission capability of protons from the anode of the membrane electrode to the cathode of the electrode, a humidifier is required to humidify gas entering a cell stack.
Taking a hydrogen fuel cell as an example of a gas fuel cell, it is necessary to introduce high-temperature and high-humidity gas into a humidifier and humidify hydrogen gas through a humidification membrane in the humidifier. The temperature of the hydrogen humidified by the humidifier is uncontrollable, and the working efficiency of the proton exchange membrane is greatly influenced after the hydrogen flows into the cell reactor.
Disclosure of Invention
The invention aims to solve the defects in the prior art, and provides an integrated cooling humidifier inner core for a gas fuel cell and a humidifier.
In order to achieve the purpose, the invention adopts the following technical scheme: an integrated cooling humidifier inner core for a gas fuel cell comprises an inner core unit, wherein the inner core unit comprises a first gas separator, a first humidifying membrane, a second gas separator, a third gas separator, a second humidifying membrane and a fourth gas separator which are sequentially arranged;
the two opposite sides of the first gas baffle plate and the first humidifying membrane are respectively sealed through a first wet gas side sealing element, a first wet gas channel is formed between the first gas baffle plate and the first humidifying membrane, the two opposite sides of the second gas baffle plate and the first humidifying membrane are respectively sealed through a first fuel gas side sealing element, and a first fuel gas channel is formed between the second gas baffle plate and the first humidifying membrane;
opposite sides of the second gas partition plate and the third gas partition plate are respectively sealed through cold side sealing pieces, and a cold gas channel is formed between the second gas partition plate and the third gas partition plate;
the two opposite sides of the third gas separation plate and the second humidifying membrane are respectively sealed through a second fuel gas side sealing element, a second fuel gas channel is formed between the third gas separation plate and the second humidifying membrane, the two opposite sides of the fourth gas separation plate and the second humidifying membrane are respectively sealed through a second wet gas side sealing element, and a second fuel gas channel is formed between the fourth gas separation plate and the second humidifying membrane.
Further, the first moisture channel, the first fuel gas channel, the cold air channel, the second fuel gas channel and the second moisture channel have the same channel direction and are arranged in parallel.
Furthermore, the humidifier inner core is formed by stacking a plurality of inner core units, and when the humidifier inner core is stacked, the fourth gas partition plate of the current inner core unit is used as the first gas partition plate of the next inner core unit.
Further, the specific structure of the first to fourth gas separators is: contain the baffle body, the both sides of baffle body are sealing member setting portion, are provided with a plurality of convex parts on two faces of mid portion respectively, and the convex part about baffle body symmetry sets up.
Furthermore, the convex parts on the clapboard body are all of cuboid structures, and the intervals among the convex parts are the same.
Further, the convex portion of the first gas separator plate adjacent to the first moisture channel is spaced apart from the first humidification membrane, and the convex portion of the second gas separator plate adjacent to the first fuel gas channel is also spaced apart from the first humidification membrane.
Furthermore, the convex parts on the second gas partition plate and the third gas partition plate, which are close to the cold air channel, are abutted, and a cold air channel is formed between two adjacent groups of abutted convex parts.
Further, the gas fuel cell is a hydrogen fuel cell, and both the first fuel gas channel and the second fuel gas channel are hydrogen gas channels.
The present invention has been made to solve the above problems, and provides an integrated-cooling humidifier core for a gas fuel cell and a humidifier, including a housing, a fuel gas inlet on the housing, a moisture inlet, a cold gas inlet, a fuel gas outlet, a moisture outlet, a cold gas outlet, and the integrated-cooling humidifier core for a gas fuel cell as described above disposed in the housing, wherein the fuel gas inlet communicates with one end of a first fuel gas channel and one end of a second fuel gas channel, the fuel gas outlet communicates with the other end of the first fuel gas channel and the other end of the second fuel gas channel, the moisture inlet communicates with one end of the first moisture channel and one end of the second moisture channel, and the moisture outlet communicates with the other end of the first moisture channel and the other end of the second moisture channel, the two ends of the cold air channel are respectively communicated with the cold air inlet and the cold air outlet.
And temperature sensors are arranged at the fuel gas outlet and the cold air inlet and are respectively connected to the processor.
The humidifier inner core and the humidifier for the integrated cooling gas fuel cell have the following technical effects: the invention utilizes the cold air to exchange the temperature with the fuel gas, the temperature of the humidified fuel gas is controllable, the structural stability of the gas baffle plate is good, and the invention has simple structure and process, easy processing and low cost.
Drawings
FIG. 1 is a schematic diagram of the construction of one embodiment of an integrated cooled humidifier core for a gas fuel cell;
FIG. 2 is a schematic diagram of the structure of one embodiment of a gas baffle;
fig. 3 is a schematic diagram of the structure of an embodiment of the humidifier for an integrated cooled gas fuel cell.
Detailed Description
In order to make the technical means, the original characteristics, the achieved purposes and the effects of the invention easily understood, the invention is further described below with reference to the specific embodiments and the attached drawings, but the following embodiments are only the preferred embodiments of the invention, and not all embodiments. Based on the embodiments in the implementation, other embodiments obtained by those skilled in the art without any creative efforts belong to the protection scope of the present invention.
Specific embodiments of the present invention are described below with reference to the accompanying drawings.
Referring to fig. 1, fig. 1 is a schematic structural diagram of an embodiment of a humidifier core for an integrated cooled gas fuel cell. The humidifier inner core for an integrated cooled gas fuel cell of the present embodiment includes an inner core unit including a first gas separator 1, a first humidification membrane 2, a second gas separator 3, a third gas separator 4, a second humidification membrane 5, and a fourth gas separator 6, which are sequentially disposed.
The two opposite sides of the first gas separator plate 1 and the first humidification membrane 2 are respectively sealed by a first moisture side sealing element 7 (only one is labeled in the figure, the first moisture side sealing element 7 is correspondingly present on the left side in fig. 1, and other sealing elements are similar to this and are not described later), a first moisture channel a is formed between the first gas separator plate 1 and the first humidification membrane 2, the two opposite sides of the second gas separator plate 3 and the first humidification membrane 2 are respectively sealed by a first fuel gas side sealing element 8, and a first fuel gas channel B is formed between the second gas separator plate 3 and the first humidification membrane 2.
The opposite sides of the second gas separator 3 and the third gas separator 4 are sealed by cold gas side seals 9, respectively, and a cold gas passage C is formed between the second gas separator 3 and the third gas separator 4.
The opposite sides of the third gas separation plate 4 and the second humidification membrane 5 are sealed by a second fuel gas side seal 10, a second fuel gas channel D is formed between the third gas separation plate 4 and the second humidification membrane 5, the opposite sides of the fourth gas separation plate 6 and the second humidification membrane 5 are sealed by a second wet gas side seal 11, and a second fuel gas channel D is formed between the fourth gas separation plate 6 and the second humidification membrane 5.
In a preferred embodiment of the present invention, the first moisture passage a, the first fuel gas passage B, the cold air passage C, the second fuel gas passage D, and the second moisture passage E are arranged in parallel in the same passage direction.
Referring to fig. 2, fig. 2 is a schematic structural diagram of an embodiment of a gas barrier. The specific structures of the first to fourth gas baffles are the same, and the first to fourth gas baffles are all in a fence shape, and specifically are: the partition board comprises a partition board body 12, wherein sealing piece setting parts 122 are arranged on two sides of the partition board body 12, a plurality of convex parts 121 (only one part is marked in the figure) are respectively arranged on two surfaces of the middle part, and the convex parts 121 on the two surfaces of the partition board body 12 are symmetrically arranged relative to the partition board body 12. The convex portions 121 on the separator body 12 are all rectangular parallelepiped structures, and the intervals between the convex portions 121 are the same. The convex portion 121 of the first gas separator plate 1 adjacent to the first moisture channel a is spaced apart from the first humidification membrane 2, and the convex portion 121 of the second gas separator plate 3 adjacent to the first fuel gas channel B is also spaced apart from the first humidification membrane 2. The convex portions 121 of the second gas separator 3 and the third gas separator 4 adjacent to the cold air path C abut, and one cold air path C is formed between two adjacent sets of abutting convex portions 121.
In the present embodiment, the gas fuel cell is a hydrogen fuel cell, the fuel gas may be hydrogen gas, and the corresponding fuel gas channel is also a hydrogen gas channel.
In this embodiment, the humidifier core for a gas fuel cell includes only one core unit as shown in fig. 1. In the gas embodiment of the present invention, the humidifier core is formed by stacking a plurality of core units, and one implementation manner of the humidifier core is to directly stack the core units shown in fig. 1, but as a preferred implementation manner of the invention, it may also be stacked such that the fourth gas barrier 6 of the current core unit is used as the first gas barrier 1 of the next core unit, that is, the fourth gas barrier 6 of the current core unit and the first gas barrier 1 of the next core unit are the same gas barrier.
Referring to fig. 3, a schematic diagram of an embodiment of a humidifier for an integrated cooled gas fuel cell is shown. The humidifier for gas fuel cell comprises a housing, a fuel gas inlet 17, a moisture inlet 16, a cold gas inlet 18, a fuel gas outlet 14, a moisture outlet 13, a cold gas outlet 15 and an integrated cooling humidifier core for gas fuel cell as described in any one of the above disposed in the housing, the fuel gas inlets 17 communicate one end of the first fuel gas channel B with one end of the second fuel gas channel D, the fuel gas outlet 17 communicates the other end of the first fuel gas channel B with the other end of the second fuel gas channel D, the moisture inlet 16 communicates one end of the first moisture passage a with one end of the second moisture passage E, the moisture outlet 13 communicates with the other end of the first moisture passage a and the other end of the second moisture passage E, and the cold air passage C has both ends communicating with the cold air inlet 18 and the cold air outlet 15, respectively.
The following specifically illustrates the working principle of the present invention.
The dry fuel gas flows into the first fuel gas channel B and the second fuel gas channel D in the humidifier through the wet gas inlet 16, and flows out of the humidifier through the fuel gas outlet 17. The moisture flows into the first moisture channel a and the second moisture channel E in the humidifier through the moisture inlet 16, and flows out of the humidifier through the moisture outlet 13. The cold air flows into the cold air channel C in the humidifier through the cold air inlet 18 and flows out of the humidifier through the moisture outlet 13.
After the dry fuel gas, the moisture and the cold air respectively flow into the humidifier fuel gas channel, the moisture channel and the cold air channel, the dry fuel gas and the moisture exchange humidity through the first humidification membrane 2 and the second humidification membrane 5, and the moisture transfers heat to the dry fuel gas; the cold air and the dry fuel gas exchange heat through the cold air flow channel.
Temperature sensors are arranged at the fuel gas outlet and the cold air inlet and are respectively connected to the processor, and the temperature of the cold air entering the humidifier is adjusted through the processor, so that the temperature of the fuel gas flowing out of the humidifier is controlled.
The humidifier inner core and the humidifier for the integrated cooling gas fuel cell have the following technical effects: the invention utilizes the cold air to exchange the temperature with the fuel gas, the temperature of the humidified fuel gas is controllable, the structural stability of the gas baffle plate is good, and the invention has simple structure and process, easy processing and low cost.
In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.
The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and the preferred embodiments of the present invention are described in the above embodiments and the description, and are not intended to limit the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (10)
1. The humidifier inner core for the integrated cooling gas fuel cell is characterized by comprising an inner core unit, wherein the inner core unit comprises a first gas separator, a first humidifying membrane, a second gas separator, a third gas separator, a second humidifying membrane and a fourth gas separator which are sequentially arranged;
the two opposite sides of the first gas baffle plate and the first humidifying membrane are respectively sealed through a first wet gas side sealing element, a first wet gas channel is formed between the first gas baffle plate and the first humidifying membrane, the two opposite sides of the second gas baffle plate and the first humidifying membrane are respectively sealed through a first fuel gas side sealing element, and a first fuel gas channel is formed between the second gas baffle plate and the first humidifying membrane;
opposite sides of the second gas partition plate and the third gas partition plate are respectively sealed through cold side sealing pieces, and a cold gas channel is formed between the second gas partition plate and the third gas partition plate;
the two opposite sides of the third gas separation plate and the second humidifying membrane are respectively sealed through a second fuel gas side sealing element, a second fuel gas channel is formed between the third gas separation plate and the second humidifying membrane, the two opposite sides of the fourth gas separation plate and the second humidifying membrane are respectively sealed through a second wet gas side sealing element, and a second fuel gas channel is formed between the fourth gas separation plate and the second humidifying membrane.
2. The humidifier core for an integrated cooled gas fuel cell according to claim 1, wherein the first moisture channel, the first fuel gas channel, the cold air channel, the second fuel gas channel and the second moisture channel are in the same channel direction and are arranged in parallel.
3. The humidifier core for an integrated cooled gas fuel cell according to claim 1, wherein the humidifier core is formed by stacking a plurality of the core units, and when stacked, the fourth gas separation plate of a previous core unit serves as the first gas separation plate of a next core unit.
4. The humidifier core for an integrated cooled gas fuel cell according to claim 1, wherein the first to fourth gas separators are specifically configured as: contain the baffle body, the both sides of baffle body are sealing member setting portion, are provided with a plurality of convex parts on two faces of mid portion respectively, and the convex part about baffle body symmetry sets up.
5. The humidifier core for an integrated cooled gas fuel cell according to claim 1, wherein the protrusions on the separator body are each of a rectangular parallelepiped structure, and the intervals between the protrusions are the same.
6. The humidifier core for an integrated cooled gas fuel cell according to claim 1, wherein the protrusions on the first gas separator plate adjacent to the first moisture channel are spaced from the first humidification membrane, and the protrusions on the second gas separator plate adjacent to the first fuel gas channel are also spaced from the first humidification membrane.
7. The humidifier core for an integrated cooled gas fuel cell according to claim 1, wherein the protrusions of the second gas separator plate and the third gas separator plate adjacent to the cold gas channel abut, and one cold gas channel is formed between two adjacent sets of abutting protrusions.
8. The humidifier core for an integrated cooled gas fuel cell according to claim 1, wherein the gas fuel cell is a hydrogen fuel cell and the first fuel gas channel and the second fuel gas channel are both hydrogen gas channels.
9. An integrated cooled gas fuel cell humidifier comprising a housing, a fuel gas inlet, a moisture inlet, a cold gas inlet, a fuel gas outlet, a moisture outlet, a cold gas outlet, and the integrated cooled gas fuel cell humidifier core according to any one of claims 1-8 disposed within the housing, the fuel gas inlet communicates with one end of the first fuel gas channel and one end of the second fuel gas channel, the fuel gas outlet communicates the other end of the first fuel gas passage with the other end of the second fuel gas passage, the moisture inlet communicates one end of the first moisture passage with one end of the second moisture passage, the moisture outlet is communicated with the other end of the first moisture channel and the other end of the second moisture channel, and the two ends of the cold air channel are respectively communicated with the cold air inlet and the cold air outlet.
10. The humidifier for an integrated cooled gas fuel cell according to claim 9, wherein temperature sensors are provided at the fuel gas outlet and the cold gas inlet, and are connected to the processor, respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011256408.7A CN112259763A (en) | 2020-11-11 | 2020-11-11 | Humidifier inner core for integrated cooling gas fuel cell and humidifier |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011256408.7A CN112259763A (en) | 2020-11-11 | 2020-11-11 | Humidifier inner core for integrated cooling gas fuel cell and humidifier |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112259763A true CN112259763A (en) | 2021-01-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011256408.7A Pending CN112259763A (en) | 2020-11-11 | 2020-11-11 | Humidifier inner core for integrated cooling gas fuel cell and humidifier |
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| Country | Link |
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| CN (1) | CN112259763A (en) |
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2020
- 2020-11-11 CN CN202011256408.7A patent/CN112259763A/en active Pending
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