CN204216143U - A kind of fuel cell pile stablizes emission control - Google Patents
A kind of fuel cell pile stablizes emission control Download PDFInfo
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- CN204216143U CN204216143U CN201420635536.6U CN201420635536U CN204216143U CN 204216143 U CN204216143 U CN 204216143U CN 201420635536 U CN201420635536 U CN 201420635536U CN 204216143 U CN204216143 U CN 204216143U
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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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Abstract
The utility model discloses a kind of fuel cell pile and stablize emission control, hyperbaric oxygen source of the gas is connected with the negative electrode of fuel cell pile and passes into oxygen, High Pressure Hydrogen source of the gas is connected with the anode of fuel cell pile and passes into hydrogen, comprising: be arranged on the first air inlet electromagnetic valve of anode-side, the first filter, the first pressure sensor; And be arranged on the second air inlet electromagnetic valve, the second filter, second pressure sensor of cathode side; The operating air pressure of system fuel cell pile of the present utility model, by the control to electromagnetically operated valve, by the effect of high speed charge air flow, the unnecessary liquid ponding be deposited in pile baffler is blown in filter by air-flow, has dredged gas diffusion paths; Meanwhile, pulsating plenum system, can by trace amount of foreign gas in plate, and replace in water filter, foreign gas discharges system with draining, can also assist the diffusion of hydrogen and oxygen, drives the active distributed of water.
Description
Technical field
The utility model relates to fuel cell system field, refers to that a kind of fuel cell pile stablizes emission control especially.
Background technology
Proton exchange membrane hydrogen fuel cell (PEMFC) is that fuel cell is a kind of, when forming loop with external circuit, hydrogen and oxygen are under catalyst (pt) effect, hydrogen gas becomes Hydrogen Proton, and be combined with water and form proton hydrate, under the effect of anode and cathode potential difference, hydronium(ion) proton orientation migrates to negative electrode from anode, form oxonium ion with negative electrode to be combined and to generate water, external circuit forms electric current.Thus the chemical energy contained by reaction gas is directly converted to electric energy.The elementary cell of fuel cell pile is monocell, and with regard to pemfc stack, its monocell is made up of membrane electrode, diffusion layer, baffler, and hydrogen side is anode, and oxygen side is negative electrode.
Along with fuel cell enters practical stage, the research for fuel battery stability, life-span, low cost is more and more deep.Wherein, stability is the important indicator of estimating fuel battery maturity, and hydrogen oxygen fuel cell is no exception, and the factor affecting stable fuel cell operation is a lot, and the water management of membrane electrode is one of key factor.
The object of water management generates water and the balance getting rid of water under maintaining pile different capacity, discharges water and pile can be made to become dry gradually more than generation water, to such an extent as to pile was lost efficacy.Discharge water is less than generation water makes pile become wet gradually, to such an extent as to pile can not be worked.In a fuel cell, the wetting situation of proton exchange membrane directly affects inside battery electrochemical reaction rates, and when proton membrane soaks good, the internal resistance of cell is low, and output voltage is high, and load capacity is strong; Otherwise if when film is too dry, the internal resistance of cell increases, output voltage declines, and load capacity reduces.Therefore, keep the wetting state that proton exchange membrane is good, be not only the necessary condition guaranteeing Proton Exchange Membrane Fuel Cells stable operation, and to prolongation stack operating life also important, but at present, existing fuel cell lacks corresponding equipment to realize the water management of fuel cell pile to improve its job stability.
Utility model content
In view of this, the purpose of this utility model is that proposing a kind of low consumable, highly reliable fuel cell pile stablizes emission control.
A kind of fuel cell pile provided based on above-mentioned purpose the utility model stablizes emission control, hyperbaric oxygen source of the gas is connected with the negative electrode of fuel cell pile and passes into oxygen, High Pressure Hydrogen source of the gas is connected with the anode of fuel cell pile and passes into hydrogen, comprising: be arranged on the first air inlet electromagnetic valve of anode-side, the first filter, the first pressure sensor; And be arranged on the second air inlet electromagnetic valve, the second filter, second pressure sensor of cathode side;
In anode-side, described first air inlet electromagnetic valve is arranged on pile anode inlet end front and normally closed, and pile anode export end connects described first filter and the first pressure sensor successively; Described first pressure sensor is for detecting the operating air pressure of pile anode-side, when operating air pressure is lower than preset range, described first air inlet electromagnetic valve is opened, and high pressure hydrogen takes in described first filter through pile and by the liquid ponding in pile and carries out gas-liquid separation; When operating air pressure is higher than preset range, described first air inlet electromagnetic valve is closed;
At cathode side, described second air inlet electromagnetic valve is arranged on pile cathode inlet end front and normally closed, and pile cathode outlet end connects described second filter and the second pressure sensor successively; Described second pressure sensor is for detecting the cathode side operating air pressure of pile, when operating air pressure is lower than preset range, described second air inlet electromagnetic valve is opened, and high pressure oxygen takes in described second filter through pile and by the liquid ponding in pile and carries out gas-liquid separation; When operating air pressure is higher than preset range, described second air inlet electromagnetic valve is closed.
Preferably, described first filter and the second filter are also respectively arranged with first row water solenoid valve and the second row water solenoid valve of the aqueous water for discharging storage.
Preferably, the volume of described first filter and the second filter is greater than 200ml.
Preferably, the operating air pressure preset range of described pile is 0.08MPa-0.18MPa.
As can be seen from above, the fuel cell pile that the utility model provides stablizes emission control, the operating air pressure of fuel cell pile, by the control to electromagnetically operated valve, by the effect of high speed charge air flow, the unnecessary liquid ponding be deposited in pile baffler is blown in filter by air-flow, has dredged gas diffusion paths; Meanwhile, pulsating plenum system, can by trace amount of foreign gas in plate, and replace in water filter, foreign gas discharges system with draining, can also assist the diffusion of hydrogen and oxygen, drives the active distributed of water.
Accompanying drawing explanation
Fig. 1 is that the fuel cell pile of the utility model embodiment stablizes emission control structural representation;
Fig. 2 is the pile deflector structure schematic diagram of the utility model embodiment.
Embodiment
For making the purpose of this utility model, technical scheme and advantage clearly understand, below in conjunction with specific embodiment, and with reference to accompanying drawing, the utility model is further described.
Affect a lot of because have of Proton Exchange Membrane Fuel Cells humidity.Major influence factors comprises pile operating temperature, the flow-rate ratio of gas, the flow velocity etc. of gas.
As proton exchange film fuel cell electric piling, its optimum working temperature is generally at 70 DEG C ~ 80 DEG C, and operating temperature low heat emission efficiency is poor, and consumable can increase; Operating temperature height can reduce the membrane electrode life-span.In addition, be improve the flow-rate ratio that pile generating efficiency can reduce reacting gas as far as possible during system, the many important environmental requirement fuel availability had is greater than 99%.In this case, gas flow rate is utilized to regulate the humidity of pile to be optimal selection.The utility model embodiment is just controlled by the humidity of control to pile of gas flow rate.
With reference to figure 1, the fuel cell pile for the utility model embodiment stablizes emission control structural representation.
The utility model embodiment provides a kind of fuel cell pile and stablizes emission control, hyperbaric oxygen source of the gas is connected with the negative electrode of fuel cell pile 1 and passes into oxygen, High Pressure Hydrogen source of the gas is connected with the anode of fuel cell pile 1 and passes into hydrogen, comprising: the first air inlet electromagnetic valve 2, first filter 3, first pressure sensor 4 being arranged on anode-side; And be arranged on the second air inlet electromagnetic valve 2 ', the second filter 3 ', second pressure sensor 4 ' of cathode side;
In anode-side, described first air inlet electromagnetic valve 2 is arranged on pile 1 anode inlet end front and normally closed, and pile 1 anode export end connects described first filter 3 and the first pressure sensor 4 successively; Described first pressure sensor 4 is for detecting the operating air pressure of pile 1 anode-side, when operating air pressure is lower than preset range, described first air inlet electromagnetic valve 2 is opened, and high pressure hydrogen takes in described first filter 3 through pile 1 and by the liquid ponding in pile 1 and carries out gas-liquid separation; When operating air pressure is higher than preset range, described first air inlet electromagnetic valve 2 is closed;
At cathode side, described second air inlet electromagnetic valve 2 ' is arranged on pile 1 cathode inlet end front and normally closed, and pile 1 cathode outlet end connects described second filter 3 ' and the second pressure sensor 4 ' successively; Described second pressure sensor 4 ' is for detecting the operating air pressure of pile 1 cathode side, when operating air pressure is lower than preset range, described second air inlet electromagnetic valve 2 ' is opened, and high pressure oxygen takes in described second filter 3 ' through pile 1 and by the liquid ponding in pile and carries out gas-liquid separation; When operating air pressure is higher than preset range, described second air inlet electromagnetic valve 2 ' is closed.
Battery pile for the present embodiment stablizes emission control, structurally, it is identical symmetry that cathode side part forms with the structure of anode-side part, below only illustrate with anode-side structure, namely each device in anode-side structure described below, also be provided with accordingly at cathode side, and working method is identical.
In the present embodiment, the first air inlet electromagnetic valve 2 enters pile 1 for controlling hydrogen.High Pressure Hydrogen source of the gas is connected to the anode inlet end of pile 1 by pipeline, and the first air inlet electromagnetic valve 2 is arranged on the air inlet pipeline in anode inlet end front of pile 1, and is in normally off.The anode export end of pile 1 connects the first filter 3 by pipeline, and connects the first pressure sensor 4 in turn.Fuel cell pile generally all has suitable operating air pressure scope, and the suitable services air pressure range of the pile 1 of the fuel cell that the present embodiment adopts is 0.08-0.18MPa.First pressure sensor 4 realizes joint control by a controller and the first air inlet electromagnetic valve 2, and the preset range for operating air pressure of controller is 0.08-0.18MPa.The operating air pressure of detection pile 1 anode-side that the first pressure sensor 4 is real-time, when the first pressure sensor 4 detects pile 1 operating air pressure lower than 0.08MPa, send low-voltage signal, by controller opens first air inlet electromagnetic valve 2, high pressure hydrogen enters rapidly pile 1 by the road, under charge air flow effect, the liquid ponding in the anode flow field of pile 1 anode-side and the tail gas reacted are taken in the first filter 3 by swiftly flowing gas.First filter 3 possesses gas-liquid separating function, and the tail gas in it and aqueous water are carried out gas-liquid separation, and is stored by the aqueous water after being separated.When the first pressure sensor 4 detects that pile 1 operating air pressure reaches 0.08MPa, controller controls the first air inlet electromagnetic valve 2 and cuts out.According to the real-time detected value of the first pressure sensor 4, reciprocation cycle is carried out by said process, achieves the discharge of unnecessary aqueous water in pile 1, finally reaches the object of the balance automatically maintaining pile 1 internal water, serves the technique effect of stable pile 1 work.
Further, in the present embodiment, the first filter 3 is also provided with first row water solenoid valve 5; Accordingly, the second filter 3 ' is also provided with second row water solenoid valve 5 '.Same for anode-side, water-level gauge is provided with in first filter 3, when the aqueous water stored in it reaches a certain amount of, namely the water level of aqueous water too high to trigger described water-level gauge time, first row water solenoid valve 5 will be opened, by the aqueous water emptying stored, to ensure that follow-up drainage works can normally carry out.
For the stable emission control of the utility model embodiment, drainage effect is relevant with fuel cell membrane electrode active area and baffler form, and active area is less than 100cm
2membrane electrode, its runner is straight channel arranged side by side, and accordingly, filter volumetric is greater than 200cc can realize exhaust in plate, namely as preferred, the first filter and 5 and second the volume of filter 5 ' be greater than 200ml.
With reference to figure 2, it is the pile deflector structure schematic diagram of the utility model embodiment.
For the baffler in pile in the present embodiment, top arranges hydrogen gas hole 6 and oxygen air admission hole 7, and bottom arranges hydrogen exhaust hole 8 and oxygen steam vent 9, and above-mentioned steam vent all solves delivery space problem by reaming in plate.
Those of ordinary skill in the field are to be understood that: the foregoing is only specific embodiment of the utility model; be not limited to the utility model; all within spirit of the present utility model and principle; any amendment of making, equivalent replacement, improvement etc., all should be included within protection range of the present utility model.
Claims (4)
1. a fuel cell pile stablizes emission control, hyperbaric oxygen source of the gas is connected with the negative electrode of fuel cell pile and passes into oxygen, High Pressure Hydrogen source of the gas is connected with the anode of fuel cell pile and passes into hydrogen, it is characterized in that, comprising: be arranged on the first air inlet electromagnetic valve of anode-side, the first filter, the first pressure sensor; And be arranged on the second air inlet electromagnetic valve, the second filter, second pressure sensor of cathode side;
In anode-side, described first air inlet electromagnetic valve is arranged on pile anode inlet end front and normally closed, and pile anode export end connects described first filter and the first pressure sensor successively; Described first pressure sensor is for detecting the operating air pressure of pile anode-side, when operating air pressure is lower than preset range, described first air inlet electromagnetic valve is opened, and high pressure hydrogen takes in described first filter through pile and by the liquid ponding in pile and carries out gas-liquid separation; When operating air pressure is higher than preset range, described first air inlet electromagnetic valve is closed;
At cathode side, described second air inlet electromagnetic valve is arranged on pile cathode inlet end front and normally closed, and pile cathode outlet end connects described second filter and the second pressure sensor successively; Described second pressure sensor is for detecting the cathode side operating air pressure of pile, when operating air pressure is lower than preset range, described second air inlet electromagnetic valve is opened, and high pressure oxygen takes in described second filter through pile and by the liquid ponding in pile and carries out gas-liquid separation; When operating air pressure is higher than preset range, described second air inlet electromagnetic valve is closed.
2. fuel cell pile according to claim 1 stablizes emission control, it is characterized in that, described first filter and the second filter are also respectively arranged with first row water solenoid valve and the second row water solenoid valve of the aqueous water for discharging storage.
3. fuel cell pile according to claim 1 stablizes emission control, it is characterized in that, the volume of described first filter and the second filter is greater than 200ml.
4. fuel cell pile according to claim 1 stablizes emission control, it is characterized in that, the operating air pressure preset range of described pile is 0.08MPa-0.18MPa.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201420635536.6U CN204216143U (en) | 2014-10-29 | 2014-10-29 | A kind of fuel cell pile stablizes emission control |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201420635536.6U CN204216143U (en) | 2014-10-29 | 2014-10-29 | A kind of fuel cell pile stablizes emission control |
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| CN204216143U true CN204216143U (en) | 2015-03-18 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109950577A (en) * | 2019-03-18 | 2019-06-28 | 东莞众创新能源科技有限公司 | Fuel battery negative pole oxygen system, its application method and calculation method |
| CN112952154A (en) * | 2021-01-29 | 2021-06-11 | 上海捷氢科技有限公司 | Hydrogen cavity gas replacement control method of fuel cell and hydrogen cavity replacement system thereof |
| CN116259806A (en) * | 2023-05-09 | 2023-06-13 | 浙江韵量氢能科技有限公司 | Fuel cell stack capable of removing gas impurities and method for removing gas impurities |
-
2014
- 2014-10-29 CN CN201420635536.6U patent/CN204216143U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109950577A (en) * | 2019-03-18 | 2019-06-28 | 东莞众创新能源科技有限公司 | Fuel battery negative pole oxygen system, its application method and calculation method |
| CN109950577B (en) * | 2019-03-18 | 2020-12-11 | 东莞众创新能源科技有限公司 | Calculation method and application method of oxygen supply system |
| CN112952154A (en) * | 2021-01-29 | 2021-06-11 | 上海捷氢科技有限公司 | Hydrogen cavity gas replacement control method of fuel cell and hydrogen cavity replacement system thereof |
| CN112952154B (en) * | 2021-01-29 | 2022-06-10 | 上海捷氢科技股份有限公司 | Hydrogen cavity gas replacement control method of fuel cell and hydrogen cavity replacement system thereof |
| CN116259806A (en) * | 2023-05-09 | 2023-06-13 | 浙江韵量氢能科技有限公司 | Fuel cell stack capable of removing gas impurities and method for removing gas impurities |
| CN116259806B (en) * | 2023-05-09 | 2023-09-22 | 浙江韵量氢能科技有限公司 | Fuel cell stack capable of removing gas impurities and method for removing gas impurities |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20200623 Address after: 100076 Beijing, Fengtai District, South Road, No. 1, Patentee after: BEIJING INSTITUTE OF SPACE LAUNCH TECHNOLOGY Address before: 4003, room 2, building 17, South Yongchang Road, Beijing economic and Technological Development Zone, Beijing, Daxing District 100076, China Patentee before: AEROSPACE NEW LONG MARCH ELECTRIC VEHICLE TECHNOLOGY Co.,Ltd. |
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| TR01 | Transfer of patent right |