CN102104163B - Fuel cell protection system - Google Patents
Fuel cell protection system Download PDFInfo
- Publication number
- CN102104163B CN102104163B CN2011100091914A CN201110009191A CN102104163B CN 102104163 B CN102104163 B CN 102104163B CN 2011100091914 A CN2011100091914 A CN 2011100091914A CN 201110009191 A CN201110009191 A CN 201110009191A CN 102104163 B CN102104163 B CN 102104163B
- Authority
- CN
- China
- Prior art keywords
- fuel cell
- hydrogen
- reaction tank
- protection system
- catalyst
- Prior art date
- 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.)
- Active
Links
Classifications
-
- 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 discloses a fuel cell protection system. The fuel cell protection system comprises a fuel cell and a hydrogen supply device, wherein a hydrogen-oxygen reaction tank is arranged at the outlet or/and the inlet of a fuel cell; and a catalyst used for catalyzing a hydrogen-oxygen reaction is arranged in the hydrogen-oxygen reaction tank. When the fuel cell starts or stops, hydrogen and oxygen in air react in the hydrogen-oxygen reaction tank so as to prevent the hydrogen and the air from entering the fuel cell after mixing to generate a corrosive effect on a membrane electrode and a bipolar plate; therefore, the durability of the fuel cell is prolonged.
Description
Technical field
The invention belongs to fuel cell field, be specifically related to a kind of protection system of fuel cell.
Background technology
Fuel cell usually has air and enters anode under the inoperative condition, again in the start-up course; hydrogen can generate large calorimetric with airborne oxygen reaction after entering anode under the membrane electrode catalyst action; cause sintering of catalyst, and cause the proton membrane damage, affect the durability of fuel cell.Hydrogen and air are blended in membrane electrode inside and also can form complicated electrochemical system in addition, cause the damage of membrane electrode and bipolar plates.Fuel cell has air along with the hydrogen emptying pipe enters anode in stopping process, still can mix with air by generating hydrogen, produces above-mentioned reaction infringement fuel battery service life.
In the prior art, for preventing that fuel cell from above-mentioned damage occuring, the way of common employing nitrogen blowing is placed hydrogen and is directly mixed at inside battery with air, but nitrogen needs extra vessel often to fill, being inconvenient to use, is disclosing in the Chinese utility model patent of ZL200720015229.8 referring to the patent No. specifically.
In addition; the patent No. is that the Chinese invention patent of ZL200710157420.0 discloses a kind of self-generated nitrogen blowing and cleaning device of protecting fuel battery car engine, and this device adopts deoxidier to remove airborne oxygen generation nitrogen anode of fuel cell is purged.But this deoxidier regeneration needs the electric energy of fuel cell output that it is carried out thermal regeneration, has increased the complexity of system's control and the consumption of electric energy.
Summary of the invention
The invention provides a kind of protection system of fuel cell, avoid fuel cell start-up and stopping period, hydrogen and air are mixed into the infringement that anode causes cell durability.
A kind of protection system of fuel cell comprises fuel cell and hydrogen gas supplying apparatus, exports or/and entrance is provided with the oxyhydrogen reaction tank built-in catalyst for the catalysis oxyhydrogen reaction in the described oxyhydrogen reaction tank at described fuel cell.
Wherein, the volume of described oxyhydrogen reaction tank is more than 0.1 times of hydrogen chamber's volume in the described fuel cell, is preferably 0.5～5 times, both can so that hydrogen and oxygen mix therein, can not take too many volume again.
Wherein, described catalyst is metallic catalyst, can be support type, also can be non-loading type, is preferably load type metal catalyst; The active component of described catalyst is one or more in platinum, palladium, rhodium, ruthenium, iridium, nickel, the silver.
Wherein, described catalyst can be vesicular texture in described oxyhydrogen reaction tank stacks, and to increase with the gas contact area and the gas that enters the oxyhydrogen reaction tank can fully be mixed, improves catalytic effect.
Wherein, described catalyst amount is down to below 5% with the hydrogen from described oxyhydrogen reaction tank gas out or at least a volume percent content of oxygen and is as the criterion.
In the protection system of described fuel cell, when fuel cell outlet and entrance are provided with the oxyhydrogen reaction tank, by the hydrogen of hydrogen gas supplying apparatus output, pass through first the oxyhydrogen reaction tank of fuel cell entrance, and then enter in the fuel cell; The oxyhydrogen reaction tank that the tail gas that fuel cell is discharged exports by fuel cell first, and then discharge.
Among the present invention, both can described oxyhydrogen reaction tank be set separately at entrance and exit, also can described oxyhydrogen reaction tank be set simultaneously at entrance and exit.When fuel cell start-up or when stopping, hydrogen and airborne oxygen produce corrosiveness thereby enter fuel cell after preventing hydrogen and air mixing to membrane electrode and bipolar plates at described oxyhydrogen reaction tank internal reaction, prolong the durability of fuel cell.
Description of drawings
Fig. 1 is the structural representation of the protection system of fuel cell of the present invention.
Embodiment
Describe the present invention in detail below in conjunction with embodiment and accompanying drawing, but the present invention is not limited to this.
Embodiment 1
As shown in Figure 1; a kind of protection system of fuel cell; comprise successively: hydrogen gas supplying apparatus, fuel cell entrance oxyhydrogen reaction tank, fuel cell and fuel cell outlet oxyhydrogen reaction tank are vesicular texture and stack spherical Pt/Al in fuel cell entrance oxyhydrogen reaction tank and fuel cell outlet oxyhydrogen reaction tank
2O
3Catalyst (can be buied by the triumphant bright catalyst in Hangzhou Co., Ltd), the quality percentage composition of Pt is 1% in the catalyst, and catalyst particle size 3mm, catalyst amount are 40 grams, the heap volume is 40ml, and fuel cell entrance oxyhydrogen reaction tank and fuel cell outlet oxyhydrogen reaction tank volume are 50ml.
Take the 100W fuel cell as example, the hydrogen chamber's volume in the fuel cell is about 50ml, and at this moment, the ratio of the volume of the hydrogen chamber's volume in the fuel cell and fuel cell entrance oxyhydrogen reaction tank (perhaps fuel cell outlet oxyhydrogen reaction tank) is 1: 1.
When opening hydrogen gas supplying apparatus, hydrogen at first enters fuel cell entrance oxyhydrogen reaction tank, under the effect of catalyst with residual air wherein in oxygen react, and then enter fuel cell, thereby prevented that hydrogen and oxygen gas mixture is in the fuel cell membrane electrode surface reaction.
During shutdown, air enters fuel cell outlet oxyhydrogen reaction tank from tail row mouth gradually, and reacts with residual hydrogen therein, then diffuses into gradually fuel battery inside, thereby has prevented that hydrogen and oxygen gas mixture is in the fuel cell membrane electrode surface reaction.
Embodiment 2
A kind of protection system of fuel cell; comprise successively: hydrogen gas supplying apparatus; fuel cell entrance oxyhydrogen reaction tank; fuel cell and fuel cell outlet oxyhydrogen reaction tank; in fuel cell entrance oxyhydrogen reaction tank and fuel cell outlet oxyhydrogen reaction tank, be vesicular texture and stack spherical palladium/calcium carbonate catalyst (can be buied by the triumphant bright catalyst in Hangzhou Co., Ltd); the quality percentage composition of palladium is 5% in the catalyst; catalyst particle size 4mm; catalyst amount is 500 grams; the heap volume is 500ml, and fuel cell entrance oxyhydrogen reaction tank and fuel cell outlet oxyhydrogen reaction tank volume are 500ml.
Take the 1000W fuel cell as example, the hydrogen chamber's volume in the fuel cell is about 400ml, and at this moment, the ratio of the volume of the hydrogen chamber's volume in the fuel cell and fuel cell entrance oxyhydrogen reaction tank (perhaps fuel cell outlet oxyhydrogen reaction tank) is 0.8: 1.
When opening hydrogen gas supplying apparatus, hydrogen at first enters fuel cell entrance oxyhydrogen reaction tank, under the effect of catalyst with residual air wherein in oxygen react, and then enter fuel cell, thereby prevented that hydrogen and oxygen gas mixture is in the fuel cell membrane electrode surface reaction.
During shutdown, air enters fuel cell outlet oxyhydrogen reaction tank from tail row mouth gradually, and reacts with residual hydrogen therein, then diffuses into gradually fuel battery inside, thereby has prevented that hydrogen and oxygen gas mixture is in the fuel cell membrane electrode surface reaction.
Claims (6)
1. the protection system of a fuel cell comprises fuel cell and hydrogen gas supplying apparatus, it is characterized in that, the outlet of described fuel cell and entrance are provided with the oxyhydrogen reaction tank, built-in catalyst for the catalysis oxyhydrogen reaction in the described oxyhydrogen reaction tank.
2. the protection system of fuel cell as claimed in claim 1 is characterized in that, the volume of described oxyhydrogen reaction tank is more than 0.1 times of hydrogen chamber's volume in the described fuel cell.
3. the protection system of fuel cell as claimed in claim 1 is characterized in that, the volume of described oxyhydrogen reaction tank is 0.5～5 times of hydrogen chamber's volume in the described fuel cell.
4. the protection system of fuel cell as claimed in claim 1 is characterized in that, described catalyst is metallic catalyst, and the active component of described catalyst is one or more in platinum, palladium, rhodium, ruthenium, iridium, nickel, the silver.
5. the protection system of fuel cell as claimed in claim 1 is characterized in that, described catalyst is spherical Pt/Al
2O
3Catalyst.
6. the protection system of fuel cell as claimed in claim 1 is characterized in that, described catalyst is vesicular texture and stacks in described oxyhydrogen reaction tank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100091914A CN102104163B (en) | 2011-01-17 | 2011-01-17 | Fuel cell protection system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100091914A CN102104163B (en) | 2011-01-17 | 2011-01-17 | Fuel cell protection system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102104163A CN102104163A (en) | 2011-06-22 |
| CN102104163B true CN102104163B (en) | 2013-03-20 |
Family
ID=44156783
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011100091914A Active CN102104163B (en) | 2011-01-17 | 2011-01-17 | Fuel cell protection system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102104163B (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6127057A (en) * | 1998-08-12 | 2000-10-03 | International Fuel Cells, Llc | Self-inerting fuel cell system |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6379827B1 (en) * | 2000-05-16 | 2002-04-30 | Utc Fuel Cells, Llc | Inerting a fuel cell with a wettable substrate |
| US6858336B2 (en) * | 2000-12-20 | 2005-02-22 | Utc Fuel Cells, Llc | Procedure for shutting down a fuel cell system using air purge |
| US9401523B2 (en) * | 2007-01-09 | 2016-07-26 | GM Global Technology Operations LLC | Fuel cell and method for reducing electrode degradation during startup and shutdown cycles |
| CN201985205U (en) * | 2011-01-17 | 2011-09-21 | 浙江高成绿能科技有限公司 | Protection system of fuel cell |
-
2011
- 2011-01-17 CN CN2011100091914A patent/CN102104163B/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6127057A (en) * | 1998-08-12 | 2000-10-03 | International Fuel Cells, Llc | Self-inerting fuel cell system |
Non-Patent Citations (2)
| Title |
|---|
| 余意等.质子交换膜燃料电池启停控制策略研究进展.《化工进展》.2010,第29卷(第10期),1857-1863. |
| 质子交换膜燃料电池启停控制策略研究进展;余意等;《化工进展》;20101005;第29卷(第10期);1857-1863 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102104163A (en) | 2011-06-22 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Wang et al. | A direct borohydride fuel cell using MnO2-catalyzed cathode and hydrogen storage alloy anode | |
| Ma et al. | Iron phthalocyanine as a cathode catalyst for a direct borohydride fuel cell | |
| JP6073037B2 (en) | Use of ammonia in alkaline membrane fuel cells as a hydrogen fuel source and as a getter for air-CO2. | |
| CN108183287A (en) | Metal fuel cell system with hydrogen elimination function | |
| KR20090043763A (en) | Fuel tank and fuel cell system with the same | |
| JP2006298670A (en) | Method and apparatus for generating hydrogen and method and system for generating electrochemical energy | |
| CN212625685U (en) | Hydrogen elimination system for hydrogen fuel galvanic pile | |
| CN101580225B (en) | Method for preparing low platinum modified carbon-loaded ruthenium nano particles and application thereof | |
| CN201985205U (en) | Protection system of fuel cell | |
| CN101885476A (en) | Cobalt nitride compound and preparation method thereof as well as methanol fuel cell catalyst and preparation method thereof | |
| CN102473946B (en) | Method for operating a high-temperature fuel cell | |
| CN102104163B (en) | Fuel cell protection system | |
| CN201112484Y (en) | Nitrogen purging device for increasing fuel cell lifetime | |
| CN101213692B (en) | Fuel cell, method for producing electrode catalyst layer for fuel cell, and method for operating fuel cell | |
| JP6637724B2 (en) | Engine system and method of operating engine system | |
| EP1860720A1 (en) | Fuel cell system with unreacted anode gas treatment and discharge facilities | |
| CN202549990U (en) | Device for lowering tail hydrogen concentration of fuel-cell power generation system | |
| CN103840184B (en) | A kind of direct borohydride fuel cell monocell activation method | |
| CN115838937A (en) | Low-carbon emission system and method combining electrochemical technology and coal-fired ammonia mixing technology | |
| US20070259245A1 (en) | Fuel cell system with unreacted anode gas treatment and discharge facilities | |
| CN108400618A (en) | A kind of system and method carrying out thermal power plant's peak regulation using electrolytic hydrogen production | |
| JP2019523539A (en) | Method for shutting down a power generation unit having a fuel cell device | |
| CN203179987U (en) | Nitrogen purging system for hydrogen supplying busbar of emergency power supply of fuel cell | |
| US20080318104A1 (en) | Electrolyte solution for hydrogen generating apparatus and hydrogen generating apparatus comprising the same | |
| CN202434641U (en) | Hydrogen supply system of fuel cell for standby power supply |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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 |