CN1270399C - Fuel battery hydrogen saving and positive pole drain method - Google Patents
Fuel battery hydrogen saving and positive pole drain method Download PDFInfo
- Publication number
- CN1270399C CN1270399C CNB031481744A CN03148174A CN1270399C CN 1270399 C CN1270399 C CN 1270399C CN B031481744 A CNB031481744 A CN B031481744A CN 03148174 A CN03148174 A CN 03148174A CN 1270399 C CN1270399 C CN 1270399C
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- CN
- China
- Prior art keywords
- battery
- air
- hydrogen
- positive pole
- pair
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Classifications
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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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- Fuel Cell (AREA)
Abstract
The present invention relates to a fuel battery hydrogen saving and positive pole drain method, which belongs to the field of the fuel battery. The method forms the natural flow of the hydrogen by making use of pressure drop generated by hydrogen consumption when two/two groups fuel battery stacks operate, and then, an air flow pulse is formed by alternate air supply, and the positive pole drain is carried out. The present invention has the specific method that a pair of operation pairs which are short for battery pairs are matched by two/two groups battery stacks; each/each group of battery piles are provided with a three-way valve connected with an air source on one end of the battery pairs; the other end of the battery pairs is provided with a communicating pipe which makes the positive pole gas paths of the two/two groups of battery stacks connected, and the communicating pipe is provided with an air-water separator. The present invention does not need a hydrogen circulation pump and frequent air release, and the hydrogen utilization rate can be 100%.
Description
Technical field
The invention belongs to the fuel cell hydrogen system, relate to the method for saving hydrogen fuel and the draining of battery pile anode.
Background technology
For improving the reaction efficiency of fuel cell hydrogen-oxygen, strengthen hydrogen and in battery pile, flow, in order effectively to get rid of the water that is collected at the battery pile anode, the hydrogen system of being everlasting is made the air-flow pulse simultaneously.Currently used method is: in hydrogen system hydrogen injector or circulating pump are installed, hydrogen system are formed circulate; On the hydrogen recycle pipeline, connect a branch road again, install one on the branch road and be interrupted the electromagnetically operated valve of opening venting, the electromagnetically operated valve venting makes hydrogen system the air-flow pulse occur, as the hydrogen gas circulating system of XCELLSiS Fuel Cell Engines company, and domestic also this technology of using more.Frequent venting, mean the loss of hydrogen fuel, hydrogen utilization ratio is maximum when battery pile is high-power, be generally about 95%, and hydrogen utilization ratio is lower when small-power, the hydrogen utilization ratio of some battery pile does not also reach 70% when small-power, had a strong impact on the efficient ratio of unit interval institute's consume fuel chemical energy (power output with) of battery pile.
Summary of the invention
Purpose of the present invention, the method that is to provide a kind of fuel cell to save Hydrogen Energy and anode draining is not lost hydrogen and can be realized hydrogen good flow and the smooth draining of anode in the battery pile.
This method be utilize two/group during fuel cell stack operation hydrogen consumption and the pressure drop that produces form hydrogen and flow naturally, carry out the anode draining by the formation air-flow pulse of alternately supplying gas again.Its specific practice is to be a pair of operative minor by two/Battery pack heap coupling, be called for short the battery pair, the secondary end of battery each/the Battery pack heap has air inlet pipe to link to each other with source of the gas by triple valve, the other end of battery pair has communicating pipe that the anode gas circuit of two/Battery pack of 1# battery pile and 2# battery pile heap is linked to each other, an air-water separator is housed on connecting pipeline, during work, one of two outlet side of triple valve are closed one and are opened, air-flow flows into the 2# battery pile from the 1# battery pile through the air-water separator, through behind the certain hour, two outlet side on off states of triple valve change, air-flow flows into the 1# battery pile from the 2# battery pile through the air-water separator, so regularly change the on off state of two outlet sides of triple valve, in the battery pair, regularly form back draught.The air-water separator can followingly connect a valve, is used in needs, such as discharges water after the battery pile work.Triple valve also can substitute with two electromagnetically operated valves.
Compared with prior art, the present invention does not need the hydrogen recycle pump, does not need electromagnetically operated valve frequently to exit, and therefore, hydrogen utilization ratio can reach 100%.Hydrogen utilization ratio is 70% battery pile during small-power, and the efficient when utilizing its small-power after the technology of the present invention can improve 43%.Simultaneously, do not discharge hydrogen and also solved the hidden danger of catching fire and exploding, it is safer to work.
Description of drawings
Fig. 1 is that fuel cell joint hydrogen of the present invention and positive pole drain method hydrogen system are arranged schematic diagram.
Embodiment
Accompanying drawings embodiment is as follows.
Two fuel cell packs (1# and 2#) are formed a battery pair 5, hydrogen system by hydrogen pressure regulating valve 1, humidifier 2, triple valve 3, air inlet pipe 4, communicating pipes 6 gentle-separator 7 form.In the course of work, hydrogen flows into the 1# battery pile of battery pair 5 successively through a branch of pressure regulating valve 1, humidifier 2, triple valve 3, air inlet pipe 4, and the air-water separator on communicating pipe 6 and communicating pipe 7 flows into the 2# battery pile of battery pair again; At certain time intervals, triple valve 3 switching channels, tube passage of just having ventilated on the air inlet pipe 4 is cut off, and another arm is open-minded, air-flow is introduced into the 2# battery pile, through communicating pipes 6 gentle-separator 7 flow into the 1# battery pile again.Behind the certain hour interval, triple valve switches air flow direction once more.Switch so repeatedly, the air-flow in battery pile is reverse flow repeatedly also.The water of battery pile anode flows into the air-water separator smoothly with air motion.Thereby realize flow hydrogen gas in anode draining and the heap.
Claims (3)
1. a fuel cell is saved Hydrogen Energy and positive pole drain method, it is mobile naturally that hydrogen consumption when it is characterized in that utilizing two/group fuel cell stack operation and the pressure drop that produces form hydrogen, carry out the anode draining by alternately changing the flow direction formation air-flow pulse of supplying gas again, its specific practice is to be a pair of battery pair by two/Battery pack heap 1# battery pile and 2# battery pile coupling, be called for short the battery pair, the secondary end of battery each/the Battery pack heap has air inlet pipe to link to each other with source of the gas by triple valve, the other end of battery pair has communicating pipe that the anode gas circuit of two/Battery pack of 1# battery pile and 2# battery pile heap is linked to each other, an air-water separator is housed on connecting pipeline, during work, one of two outlet side of triple valve are closed one and are opened, air-flow flows into the 2# battery pile from the 1# battery pile through the air-water separator, through behind the certain hour, two outlet side on off states of triple valve change, air-flow flows into the 1# battery pile from the 2# battery pile through the air-water separator, so regularly change the on off state of two outlet sides of triple valve, in the battery pair, regularly form back draught.
2. fuel cell joint hydrogen according to claim 1 and positive pole drain method is characterized in that said air-water separator its underpart connects a discharging valve.
3. fuel cell joint hydrogen according to claim 1 and positive pole drain method, it is characterized in that said triple valve is substituted by two electromagnetically operated valves, this two electromagnetically operated valve is contained in respectively in the air inlet pipeline of two/Battery pack heap of battery pair, its state is one to be opened one and closes, and alteration switch state regularly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB031481744A CN1270399C (en) | 2003-07-04 | 2003-07-04 | Fuel battery hydrogen saving and positive pole drain method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB031481744A CN1270399C (en) | 2003-07-04 | 2003-07-04 | Fuel battery hydrogen saving and positive pole drain method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1476121A CN1476121A (en) | 2004-02-18 |
| CN1270399C true CN1270399C (en) | 2006-08-16 |
Family
ID=34156215
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB031481744A Expired - Fee Related CN1270399C (en) | 2003-07-04 | 2003-07-04 | Fuel battery hydrogen saving and positive pole drain method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1270399C (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104716367A (en) * | 2015-03-26 | 2015-06-17 | 上海新源动力有限公司 | Tail discharge system for fuel battery and starting method for tail discharge system |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1299384C (en) * | 2005-03-16 | 2007-02-07 | 哈尔滨工业大学 | Capillary transferring cathode water to make up anode self-humidifying proton exchange film fuel cell pile |
| US8192885B2 (en) * | 2009-01-26 | 2012-06-05 | GM Global Technology Operations LLC | Shutdown strategy for enhanced water management |
| US8402808B2 (en) * | 2010-06-09 | 2013-03-26 | GM Global Technology Operations LLC | Function test of fuel cell exhaust gas stream hydrogen sensor by generating defined hydrogen pulses while driving and at regular service with fuel cell system immanent devices |
| US9105888B2 (en) * | 2011-10-07 | 2015-08-11 | GM Global Technology Operations LLC | Anode purge and drain valve strategy for fuel cell system |
-
2003
- 2003-07-04 CN CNB031481744A patent/CN1270399C/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104716367A (en) * | 2015-03-26 | 2015-06-17 | 上海新源动力有限公司 | Tail discharge system for fuel battery and starting method for tail discharge system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1476121A (en) | 2004-02-18 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20060816 Termination date: 20120704 |