CN208045611U - A kind of fuel cell system - Google Patents
A kind of fuel cell system Download PDFInfo
- Publication number
- CN208045611U CN208045611U CN201820242147.5U CN201820242147U CN208045611U CN 208045611 U CN208045611 U CN 208045611U CN 201820242147 U CN201820242147 U CN 201820242147U CN 208045611 U CN208045611 U CN 208045611U
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- Prior art keywords
- fuel cell
- valve
- pile
- air
- compressor machine
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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 utility model provides a kind of fuel cell system, including controller, pile and air compressor machine, and pile is connected with Hydrogen Line and air pipeline, and air compressor machine connects pile by air pipeline, and the first valve and humidifier are provided on air pipeline；The humidifier and the first valve are simultaneously equipped with bypass duct, and the second valve is provided on bypass duct, and the controller connects the control section of air compressor machine, the first valve and the second valve.Technical solution provided by the utility model, humidifier is bypassed using bypass duct in the postboost purge of fuel cell, for purging air without humidifier humidification, the air humidity for being accordingly used in purging is relatively low, can solve the problems, such as that purging effect is poor when being purged after fuel cell shutdown.
Description
Technical field
The utility model belongs to fuel cell and shuts down purging control technology field, and in particular to a kind of fuel cell system.
Background technology
Fuel cell is a kind of equipment that the chemical energy by fuel is directly changed into electric energy by electrode reaction, this equipment
It is not related to burning in the process that the chemical energy of fuel is converted into electric energy, therefore its energy conversion efficiency is by " Kano is followed
The limitation of ring ", transfer efficiency are up to 60%-70%, and the efficiency of actual to fuel is 2 times of ordinary internal combustion engine or so.Separately
Outside, fuel cell also has many advantages, such as that fuel diversification, exhaust is pollution-free, low noise, reliability and maintainability are good.Therefore, it fires
Expect that the research work of battery does not solve environmental problem only and provides new approaches, but also to solve the energy crisis of getting worse
Problem provides new approach.
Proton Exchange Membrane Fuel Cells is one kind of fuel cell, compared with general fuel cell, has efficient, knot
Structure is compact, light-weight, specific power is big, non-corrosive, operating temperature is low, not by effect of carbon dioxide, fuel source than wide
The advantages that, particularly suitable as portable power, power sources of motor vehicle and medium and small electricity generation system.Proton Exchange Membrane Fuel Cells
Maximum advantage is not high to the temperature requirement of working environment, and optimum working temperature is 70 DEG C -80 DEG C, but at room temperature
It can work normally, so the power supply be especially suitable for vehicular traffic.Just because of this, Proton Exchange Membrane Fuel Cells most has
Wish to substitute traditional combustion engine and become car power source.
Proton Exchange Membrane Fuel Cells is provided with Hydrogen Line and air pipeline, and hydrogen is passed through to pile by Hydrogen Line
Gas is passed through air by air pipeline to pile, and the oxygen in hydrogen and air is produced electricl energy in pile reaction, and generates by-product
Fuel cell can be discharged in object water, the water generated during Proton Exchange Membrane Fuel Cells reacts with last row gas, but
It is fuel cell cannot again purge fuel cell when shutting down.And if not purging generation when fuel cell is shut down
Water will be accumulated in fuel battery inside, cause fuel cell decay and influence fuel cell cannot smoothly start next time.
Solve the above problems common method at present, is to shut down by air pipeline to fuel cell again in fuel cell
It is continually fed into the air of a period of time, the moisture of fuel cell is purged clean；However, to ensure that fuel cell pile is anti-
Efficiency is answered, humidifier is typically provided on air pipeline, to entering the air wetting of pile.But it shuts down in fuel cell
In purge, if air passes through humidifier, the working efficiency purged to fuel cell can be reduced.
Utility model content
The utility model provides a kind of fuel cell system, for solving in the prior art laggard to fuel cell shutdown
Purging efficiency low problem when row purging.
To achieve the above object, technical solution provided by the utility model is：
Scheme 1：A kind of fuel cell system, including controller, pile and air compressor machine, pile are connected with Hydrogen Line and sky
Feed channel, air compressor machine connects pile by air pipeline, and the first valve and humidifier are provided on air pipeline；The increasing
Wet device and the first valve are simultaneously equipped with bypass duct, are provided with the second valve on bypass duct, the controller connection air compressor machine,
The control section of first valve and the second valve.
Technical solution provided by the utility model uses bypass duct will in the postboost purge of fuel cell
Humidifier bypasses, and the air for purging is accordingly used in the air humidity of purging relatively without the humidification of humidifier
It is low, it can solve the problems, such as that purging effect is poor when being purged after fuel cell shutdown.
Scheme 2：On the basis of scheme 1, the controller is also associated with temperature sensor, and temperature sensor is for detecting
The temperature of fuel cell ambient enviroment.
Scheme 3：On the basis of scheme 1 or 2, by rating test, in being provided on the outlet pipe of the air compressor machine
Cooler.
Scheme 4：On the basis of scheme 1 or 2, the controller is connected with internal resistance detection device, and internal resistance detection device is set
It sets at pile, the internal resistance value for detecting pile.
Scheme 5：On the basis of scheme 1, first valve and the second valve are electromagnetism butterfly valve.
Description of the drawings
Fig. 1 is the structure principle chart of fuel cell system in embodiment；
Fig. 2 is the flow chart of fuel cell system shutdown purge in embodiment.
Specific implementation mode
The utility model provides a kind of fuel cell system, for solving in the prior art laggard to fuel cell shutdown
Purging efficiency low problem when row purging.
To achieve the above object, technical solution provided by the utility model is：
A kind of fuel cell system, including controller, pile and air compressor machine, pile are connected with Hydrogen Line and air hose
Road, air compressor machine connects pile by air pipeline, and the first valve and humidifier are provided on air pipeline；The humidifier
With the first valve and equipped with bypass duct, the second valve, the controller connection air compressor machine, first are provided on bypass duct
The control section of valve and the second valve.
The technical solution of the utility model is described further With reference to embodiment.
The present embodiment provides a kind of fuel cell system, which is proton exchange film fuel battery system,
Using hydrogen and oxygen as reactant, produced electricl energy after reaction, and generate by-product water.
The fuel cell system that the present embodiment is provided, structural principle as shown in Figure 1, include controller 10 and pile 7,
Pile 7 is provided with the Hydrogen Line for being passed through hydrogen, admission line for being passed through air and for discharging air after reaction
Outlet pipe, air compressor machine 1, charge air cooler 2 and the first electromagnetism butterfly valve 3 are provided on admission line, is arranged on outlet pipe
There is counterbalance valve 6；Further include humidifier 5, a part for humidifier 5 is arranged on admission line, and another part is arranged in escape pipe
On road.The first electromagnetism butterfly valve 3 and humidifier 5 in admission line are simultaneously equipped with bypass duct, and second is provided on bypass duct
Electromagnetism butterfly valve 4.Controller 10 connects the control section of air compressor machine 1, the first electromagnetism butterfly valve 3, the second electromagnetism butterfly valve 4 and counterbalance valve 6.
The pile part of fuel cell is additionally provided with internal resistance detection device, and internal resistance detection device 8 is for detecting fuel cell
The internal resistance of pile, and when fuel cell carries out shutdown purging, 3 He of the first electromagnetism of internal resistance pair butterfly valve of fuel cell pile
Second electromagnetism butterfly valve 4 is controlled, and the flow of control is as shown in Fig. 2, specific method is：
When fuel cell carries out shutdown purging, the second electromagnetism butterfly valve 4 opening is controlled first, then controls the first electromagnetism butterfly
Valve 3 is closed, while controlling the opening of counterbalance valve 6, and control air compressor machine 1 enters purge mode；Air is passed through bypass by air compressor machine 1 at this time
Pipeline is dried to fuel cell pile 7, is purged to fuel cell；
In purge, controller 10 detects the internal resistance Rw of fuel cell pile 7 by internal resistance detection device 8 in real time；
If the internal resistance Rw of fuel cell pile 7 is more than the first setting internal resistance value R1 and sets internal resistance value R2 less than second,
The rotating speed for then controlling air compressor machine 1 is the first tachometer value n1；
If the internal resistance Rw of fuel cell pile 7 is more than the second setting internal resistance value R2, the rotating speed for controlling air compressor machine 1 is the
Two tachometer value n2；Wherein the first tachometer value n1 is less than the second tachometer value n2, the first internal resistance value R1 and is less than the second internal resistance value R2；
If the internal resistance Rw of fuel cell pile 7 is less than the first setting internal resistance value R1, stop purging, and control air compressor machine
1 shutdown, the second electromagnetism butterfly valve 4 and counterbalance valve 6 are closed.
In the present embodiment, controller 10 is also associated with temperature sensor 9, and temperature sensor 9 is for detecting fuel cell
Operating ambient temperature.First setting internal resistance value R1, second, which sets internal resistance value R2, the first tachometer value n1 and the second tachometer value n2, passes through
Experimental Calibration under each environment temperature obtains, and method is：
Rating test is carried out to fuel cell first, obtains first setting internal resistance value of the fuel cell under each environment temperature
R1, the second setting internal resistance value R2, the first tachometer value n1 and the second tachometer value n2；
Then in the shutdown purge of fuel cell, the temperature value that controller 10 is detected according to temperature sensor 9,
Determine the first setting internal resistance value R1, the second setting internal resistance value R2, the first tachometer value n1 and the second rotating speed under current environmental temperature
Value n2.
In the present embodiment, the first electromagnetism butterfly valve 3 and 4 valve of the second electromagnetism butterfly valve, which simultaneously close off, in order to prevent leads to air compressor machine
The purge gas pumped out does not flow to and leads to failure, and the second electromagnetism butterfly valve 4 of control controls the first electromagnetism butterfly valve 3 pass again after opening
It closes.
Claims (5)
1. a kind of fuel cell system, including controller, pile and air compressor machine, pile are connected with Hydrogen Line and air pipeline,
Air compressor machine connects pile by air pipeline, and the first valve and humidifier are provided on air pipeline；It is characterized in that, institute
It states humidifier and the first valve and is equipped with bypass duct, the second valve is provided on bypass duct, the controller connection is empty
The control section of press, the first valve and the second valve.
2. a kind of fuel cell system according to claim 1, which is characterized in that the controller is also associated with temperature biography
Sensor, temperature sensor are used to detect the temperature of fuel cell ambient enviroment.
3. a kind of fuel cell system according to claim 1 or 2, which is characterized in that the outlet pipe of the air compressor machine
On be provided with charge air cooler.
4. a kind of fuel cell system according to claim 1 or 2, which is characterized in that the controller is connected with internal resistance
Detection device, internal resistance detection device are arranged at pile, the internal resistance value for detecting pile.
5. a kind of fuel cell system according to claim 1, which is characterized in that first valve and the second valve are equal
For electromagnetism butterfly valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820242147.5U CN208045611U (en) | 2018-02-09 | 2018-02-09 | A kind of fuel cell system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820242147.5U CN208045611U (en) | 2018-02-09 | 2018-02-09 | A kind of fuel cell system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208045611U true CN208045611U (en) | 2018-11-02 |
Family
ID=63952790
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820242147.5U Active CN208045611U (en) | 2018-02-09 | 2018-02-09 | A kind of fuel cell system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208045611U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111883801A (en) * | 2020-07-06 | 2020-11-03 | 无锡沃尔福汽车技术有限公司 | Fuel cell air system |
| CN113022333A (en) * | 2019-12-24 | 2021-06-25 | 郑州宇通客车股份有限公司 | Fuel cell system and vehicle |
-
2018
- 2018-02-09 CN CN201820242147.5U patent/CN208045611U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113022333A (en) * | 2019-12-24 | 2021-06-25 | 郑州宇通客车股份有限公司 | Fuel cell system and vehicle |
| CN111883801A (en) * | 2020-07-06 | 2020-11-03 | 无锡沃尔福汽车技术有限公司 | Fuel cell air system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: 450061 Yudao Road, Guancheng District, Zhengzhou City, Henan Province Patentee after: Yutong Bus Co.,Ltd. Address before: 450016 Yutong Road, Guancheng District, Zhengzhou City, Henan Province Patentee before: ZHENGZHOU YUTONG BUS Co.,Ltd. |
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| CP03 | Change of name, title or address |