CN101834300A - Pressure tracking and regulating device for proton membrane fuel cell power-supply system - Google Patents
Pressure tracking and regulating device for proton membrane fuel cell power-supply system Download PDFInfo
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- CN101834300A CN101834300A CN200910047554A CN200910047554A CN101834300A CN 101834300 A CN101834300 A CN 101834300A CN 200910047554 A CN200910047554 A CN 200910047554A CN 200910047554 A CN200910047554 A CN 200910047554A CN 101834300 A CN101834300 A CN 101834300A
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- pressure
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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
Abstract
The invention provides a pressure tracking and regulating device for a proton membrane fuel cell power-supply system, wherein a cathode medium (oxygen or air) is connected with a gas input end at the top end of a body, an anode medium is input from a gas inlet end at the lower part of the body and output from a gas outlet end, the cathode medium and the anode medium are separated by an elastic separating part to form an interacting unity, and the pressure of the anode medium is regulated and controlled through a rod part by utilizing the pressure of the cathode medium, so that a proton membrane electrode can be ensured to be in a stable pressure state, and the purpose of the invention is realized.
Description
Technical field
The present invention relates to a kind of pressure-regulating device, particularly a kind of pressure tracking and regulating device that is used for proton membrane fuel cell power-supply system.
Background technology
Usually, during Proton Exchange Membrane Fuel Cells work, fuel, loses electronics and forms proton H in anode-catalyzed laminar surface generation electrochemical reaction by anode gas diffusion layer
+, proton H
+Can pass through proton exchange membrane, arrive negative electrode one side of membrane electrode; Meanwhile, oxidant gas is by cathode diffusion layer, at cathode catalysis laminar surface and the proton H that sees through the proton film
+React, generate water.
In the Proton Exchange Membrane Fuel Cells that adopts hydrogen to act as a fuel, the equation of anode reaction and cathode reaction is:
Anode reaction: H
2→ 2H
++ 2e
Cathode reaction: O
2+ 4H
++ 4e → 2H
2O
In the operation of fuel cells process, the proton film is kept apart the hydrogen and the oxidant (air or oxygen) at the two poles of the earth.During work, the proton film also bears certain working pressure except temperature, the humidity environment that will be in anode medium and negative electrode medium itself for a long time are following.Because after increasing the pressure at the two poles of the earth, can improve the power generation performance of fuel cell, and help fuel cell and generate water and discharge rapidly.The anode medium (hydrogen) of proton membrane fuel battery and negative electrode medium (air or oxygen), its pressure come from two complete independent pressure systems, promptly provide pressure respectively by two pressure sources.In order to keep pile proton film operate as normal under pressure, guarantee that the pressure reduction of these two systems is stable particularly important.
Summary of the invention
The object of the present invention is to provide a kind ofly to be used to the pressure tracking and regulating device of proton membrane fuel cell power-supply system that pressurizes, thereby guaranteed that above-mentioned two independent pressure system stabilities running and proton film are because of anode medium and the excessive damage of breaking that causes of negative electrode medium differential pressure.
Technical problem solved by the invention can realize by the following technical solutions:
A kind of pressure tracking and regulating device of the proton membrane fuel cell power-supply system that is used to pressurize, comprise a device body, it is characterized in that, described body is divided into the upper and lower part, pass through the elasticity channels separated between the bottom of described upper part of body and described body, be respectively arranged with cavity volume in described upper part of body and the bottom, be provided with the gas input on the top of described body, the cavity volume on described gas input and described body top interconnects; Two ends, bottom at described body are respectively arranged with gas access end and gas outlet end, described gas access end and gas outlet end are by being arranged on the channels separated in the cavity volume of described body bottom, described separator is provided with the through hole that gas access end and gas outlet end are interconnected, the bottom of described body is provided with rod member, the top of described rod member is passed the through hole on described body bottom cavity volume and the described separator and is withstood on the bottom of described elasticity separator, and described rod member is provided with the projection that gets lodged in the through hole on the described separator under normal conditions.
Described rod member is an adjusting screw(rod), and described adjusting screw(rod) is provided with an adjusting device that includes regulating spring, is provided with adjusting nut in the bottom of described adjusting device.
Described elasticity separator is a flexible sheet.
The pressure tracking and regulating device of a kind of proton membrane fuel cell power-supply system that is used to pressurize of the present invention, negative electrode medium (oxygen or air) is connected the gas input on body top, the anode medium is from the gas access end input of body bottom, export by gas outlet end, negative electrode medium and anode medium are by the elasticity channels separated, form the entity of mutual restriction, and utilize the pressure of negative electrode medium to remove to regulate the pressure of control anode medium by rod member, can guarantee that the proton membrane electrode is under the pressure stable state, realizes purpose of the present invention.
Description of drawings
Fig. 1 is the structural representation of pressure tracking and regulating device of the present invention;
Fig. 2 is the workflow diagram of pressure tracking and regulating device of the present invention in the proton membrane fuel battery electricity generation system.
Embodiment
For technological means, creation characteristic that the present invention is realized, reach purpose and effect is easy to understand, below in conjunction with concrete diagram, further set forth the present invention.
Referring to Fig. 1, a kind of pressure tracking and regulating device that is used for proton membrane fuel cell power-supply system, comprise a device body 1, body 1 is divided into top 11 and bottom 12, separate by elasticity separator 2 between the top 11 of body 1 and the bottom 12 of body 1, be provided with cavity volume 13 in the top 11 of body 1, be provided with cavity volume 14 in the bottom 12 of body 1, cavity volume 13 owing to separated by elasticity separator 2, forms the entity of mutual restriction with cavity volume 14 in body 1; In the present embodiment, elasticity separator 2 is a flexible sheet.
Be provided with gas input 15 on the top of body 1, gas input 15 interconnects with the cavity volume 13 on the top 11 of body 1, and negative electrode medium (oxygen or air) is input in the cavity volume 13 by gas input 15.
12 two ends, bottom at body 1 are respectively arranged with gas access end 16 and gas outlet end 17, the anode medium is from 16 inputs of gas access end, by gas outlet end 17 outputs, separators 18 in the cavity volume 14 of gas access end 16 and gas outlet end 17 bottom 12 by being arranged on body 1 are separated, separator 18 is provided with through hole 181, and gas access end 16 and gas outlet end 17 are interconnected.
The bottom of body 1 is provided with rod member 3, the top of rod member 3 pass body 1 bottom 12 cavity volume 14 and the through hole 181 on the separator 18 and withstand on the bottom of elasticity separator 2, rod member 3 is provided with projection 31, and projection 31 gets lodged in through hole 181 places on the separator 18 under normal conditions.
In the present embodiment, rod member 3 is an adjusting screw(rod), adjusting screw(rod) is provided with regulating spring 32, be provided with adjusting nut 33 in the bottom of rod member 3, by adjusting nut 33 rod member 3 is moved up and down, adjust the position of rod member 3 in the cavity volume 14 of the bottom 12 of body 1, easy to use and reliable, regulate pressure reduction precision height.
In pressure tracking and regulating device of the present invention, all materials that contacts with two kinds of gaseous mediums of anode medium and negative electrode medium all adopt nickeliferous metal material peace and quiet, no corrosion tendency, after gas enters fuel cell system, can not cause the poisoning of heap inner catalyst.
As shown in Figure 2, during work, at first, anode medium hydrogen after pressure-reducing valve 8 once reduces pressure, enters the gas access end 16 of pressure tracking and regulating device of the present invention from hydrogen-holder 6 outputs, at this moment, the hydrogen dump valve 42 of fuel cell 4 is in closed condition, and revolving rod 3, makes Pressure gauge P2 value equal operation of fuel cells pressure.
Then, open air pump 5, the negative electrode medium air is from air pump 5 outputs, at this moment, open valve 9, make Pressure gauge P1 value equal operation of fuel cells pressure, negative electrode medium air major part enters the pile of fuel cell 4, and a small amount of gas enters gas input 15 through pressure controlling conduit 7; At this moment, anode medium hydrogen and the oxygen in the negative electrode medium air in the fuel cell 4 carry out chemical reaction on pole plate, and the generation electric current is outwards exported.
The a small amount of gas that enters gas input 15 is because the pressure effect of gas, make elasticity separator 2 produce upper and lower displacement, size variation along with gas input 15, elasticity separator 2 can promote its underpart rod member 3 simultaneously, thereby change distance between the through hole 181 on projection 31 and the separator 18,, do decompression for the second time at this and adjust also promptly through the once post-decompression anode medium of pressure-reducing valve 8 hydrogen, and the height of its pressure changes with the pressure size of the gas input 15 of elasticity separator 2.
In order to protect proton membrane electrode plate operate as normal; the pressure stability that keeps pole plate two side anode media and negative electrode medium; with pressure controlling conduit 7 outlet of the gas input 15 of this device with air pump 5 coupled together; because the elastic reaction of this device inner elastomeric separator 2; when changing, pressure changes the size of anode medium hydrogen passage; thereby realized the interaction of two kinds of gas pressures; promptly regulate and control the pressure of anode medium hydrogen with the pressure of negative electrode medium air; and keeping certain pressure stability, the negative electrode medium air in the fuel cell 4 is got rid of by bleed air valve 42.
More than show and described basic principle of the present invention and principal character and advantage of the present invention.The technical staff of the industry should understand; the present invention is not restricted to the described embodiments; that describes in the foregoing description and the specification just illustrates principle of the present invention; without departing from the spirit and scope of the present invention; the present invention also has various changes and modifications; these changes and improvements all fall in the claimed scope of the invention, and the claimed scope of the present invention is defined by appending claims and equivalent thereof.
Claims (4)
1. pressure tracking and regulating device that is used for proton membrane fuel cell power-supply system, comprise a device body, it is characterized in that, described body is divided into the upper and lower part, pass through the elasticity channels separated between the bottom of described upper part of body and described body, be respectively arranged with cavity volume in described upper part of body and the bottom, be provided with the gas input on the top of described body, the cavity volume on described gas input and described body top interconnects; Two ends, bottom at described body are respectively arranged with gas access end and gas outlet end, described gas access end and gas outlet end are by being arranged on the channels separated in the cavity volume of described body bottom, described separator is provided with the through hole that gas access end and gas outlet end are interconnected, the bottom of described body is provided with rod member, the top of described rod member is passed the through hole on described body bottom cavity volume and the described separator and is withstood on the bottom of described elasticity separator, and described rod member is provided with the projection that gets lodged in the through hole on the described separator under normal conditions.
2. pressure tracking and regulating device as claimed in claim 1 is characterized in that: described rod member is an adjusting screw(rod), and described adjusting screw(rod) is provided with an adjusting device that includes regulating spring, is provided with adjusting nut in the bottom of described adjusting device.
3. pressure tracking and regulating device as claimed in claim 1 is characterized in that: described elasticity separator is a flexible sheet.
4. pressure tracking and regulating device as claimed in claim 1 is characterized in that: in described pressure tracking and regulating device, all adopt nickeliferous metal material peace and quiet, no corrosion tendency with the material that the anode medium contacts with the negative electrode medium.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910047554A CN101834300A (en) | 2009-03-13 | 2009-03-13 | Pressure tracking and regulating device for proton membrane fuel cell power-supply system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910047554A CN101834300A (en) | 2009-03-13 | 2009-03-13 | Pressure tracking and regulating device for proton membrane fuel cell power-supply system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101834300A true CN101834300A (en) | 2010-09-15 |
Family
ID=42718286
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200910047554A Pending CN101834300A (en) | 2009-03-13 | 2009-03-13 | Pressure tracking and regulating device for proton membrane fuel cell power-supply system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101834300A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105283637A (en) * | 2013-03-15 | 2016-01-27 | 智能能源有限公司 | Fluidic components suitable for fuel cell systems including pressure regulators and valves |
| CN111816895A (en) * | 2020-07-15 | 2020-10-23 | 山东派蒙机电技术有限公司 | Device for keeping pressure stability of hydrogen path of hydrogen fuel cell |
| CN114204079A (en) * | 2020-09-17 | 2022-03-18 | 北京亿华通科技股份有限公司 | Fuel cell stack assembly pressure testing method and testing device |
-
2009
- 2009-03-13 CN CN200910047554A patent/CN101834300A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105283637A (en) * | 2013-03-15 | 2016-01-27 | 智能能源有限公司 | Fluidic components suitable for fuel cell systems including pressure regulators and valves |
| CN105283637B (en) * | 2013-03-15 | 2018-11-16 | 智能能源有限公司 | Be suitable for include the fuel cell system of pressure regulator and valve fluidic component |
| CN111816895A (en) * | 2020-07-15 | 2020-10-23 | 山东派蒙机电技术有限公司 | Device for keeping pressure stability of hydrogen path of hydrogen fuel cell |
| CN114204079A (en) * | 2020-09-17 | 2022-03-18 | 北京亿华通科技股份有限公司 | Fuel cell stack assembly pressure testing method and testing device |
| CN114204079B (en) * | 2020-09-17 | 2024-02-27 | 北京亿华通科技股份有限公司 | Method and device for testing assembly pressure of fuel cell stack |
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Application publication date: 20100915 |