CN100479249C - Air supply system of fuel cell with measurable humidity and humidity measuring method - Google Patents
Air supply system of fuel cell with measurable humidity and humidity measuring method Download PDFInfo
- Publication number
- CN100479249C CN100479249C CNB2007100368920A CN200710036892A CN100479249C CN 100479249 C CN100479249 C CN 100479249C CN B2007100368920 A CNB2007100368920 A CN B2007100368920A CN 200710036892 A CN200710036892 A CN 200710036892A CN 100479249 C CN100479249 C CN 100479249C
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- CN
- China
- Prior art keywords
- humidity
- air
- supply system
- temperature
- fuel cell
- 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.)
- Expired - Fee Related
Links
- 239000000446 fuel Substances 0.000 title claims abstract description 41
- 238000000034 method Methods 0.000 title claims description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 15
- 238000001816 cooling Methods 0.000 abstract description 10
- 238000005259 measurement Methods 0.000 abstract description 5
- 238000000691 measurement method Methods 0.000 abstract description 2
- 239000012528 membrane Substances 0.000 description 7
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 6
- 229910052739 hydrogen Inorganic materials 0.000 description 6
- 239000001257 hydrogen Substances 0.000 description 6
- 241001269238 Data Species 0.000 description 1
- 206010013786 Dry skin Diseases 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 235000019628 coolness Nutrition 0.000 description 1
- 230000018044 dehydration Effects 0.000 description 1
- 238000006297 dehydration reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000003487 electrochemical reaction Methods 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 239000000523 sample Substances 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
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
Landscapes
- Fuel Cell (AREA)
Abstract
The invention relates to one fuel battery air supply system and its air humidity measurement method and provides one measurement humidity fuel battery air supply system, which comprises filter, compressor, humidity adding device and middle cooling device, wherein, the humidity adding device and middle cooling device set with humidity sensor, first pressure meter and first temperature sensor; the said middle cooling exit section is set with second pressure meter and second temperature sensor.
Description
Technical field
The present invention relates to fuel cell, relate in particular to the method for measurement of the fuel battery air supply system and the air humidity that supplies.
Background technology
Used in proton exchange membrane fuel cell must comprise battery pile, fuel hydrogen supply, air supply, cooling heat dissipation, control and electric energy output various piece automatically when doing car, ship power system or portable, portable and fixed power station.
In order to guarantee the stability of fuel cell long-time running, used proton exchange membrane in the present membrane electrode of fuel batter with proton exchange film, needing the hydrone existence in the battery operation process preserves moisture, because have only the proton of aquation just can freely pass proton exchange membrane, arrive the electrode cathode end from the electrode anode end and participate in electrochemical reaction.Otherwise, when the air of a large amount of dryings to the fuel cell supply and when leaving fuel cell, easily the hydrone in the proton exchange membrane is taken away, make proton pass through proton exchange membrane smoothly, cause the electrode internal resistance sharply to increase, battery performance sharply descends.So in general need through humidification to the fuel cell air supplied, the relative air humidity that enters fuel cell improved, in order to avoid make the proton exchange membrane dehydration.
Because it is closely related to enter the humidity and the fuel cell performance of fuel battery air, therefore to measure accurately so that carry out strictness control it.In fact, fuel cell all has air supply system, and the air that supply system is come out promptly enters fuel battery inside, can finish by the air humidity of measuring the air supply system outlet section so measure the humidity of fuel battery air.
The general direct middle cooling exit section at air supply system of at present used fuel cell adds the air humidity that humidity sensor is measured this place, and obtain the air humidity of fuel cell with this, but the greatest problem that the way of this acquisition fuel battery air humidity exists is: in case current most humidity sensor all exists probe to be stained with condensed water then measures malfunctioning drawback, and the air of air supply system is through compressor operative temperature higher (above 130 ℃), again through humidification, cooling, the outlet section that reaches charge air cooler has phase transformation to take place, very easily produce condensed water, and make humidity sensor malfunctioning, in case condensed water is not in time taken away, with influencing the adjusting control of system greatly, finally influence fuel cell performance to humidifying device.
Summary of the invention
The purpose of this invention is to provide a kind of fuel battery air supply system that can accurately measure the air humidity that supplies, further purpose of the present invention provides a kind of method of accurate measurement fuel battery air supply system humidity.
The technical scheme that realizes the object of the invention is as follows:
A kind of fuel battery air supply system of measuring humidity comprises the filter, compressor, humidifier and the charge air cooler that connect successively, is provided with humidity sensor, first Pressure gauge and first temperature sensor between described humidifier and the charge air cooler; Described middle cooling exit section is provided with second Pressure gauge and second temperature sensor.
A kind of humidity measuring method of measuring the fuel battery air supply system of humidity comprises the steps:
1) measures the humidity φ of air between described humidifier and the charge air cooler
1, temperature t
1With air pressure P
1
2) measure the temperature t of described charge air cooler (11) outlet section air
2With air pressure P
2
3) converse the air humidity φ of described charge air cooler (11) outlet section
2, reduction formula is
Wherein
Be temperature t
1Following water saturation vapour pressure,
Be temperature t
2Following water saturation vapour pressure.
The characteristics of maximum of the present invention are fuel battery air air humidity that supply system supplies directly not to be measured, thereby have avoided the unfavorable factor that direct measurement brought; The present invention has selected in the air supply system two positions to carry out related datas such as humidity, temperature and pressure to measure, and guarantees the accuracy of these measurement data by reduction formula, to draw air that air supply system supplies humidity accurately indirectly then.
Description of drawings
Fig. 1 is the fuel cell system structure schematic diagram.
Embodiment
See Fig. 1, store high pressure hydrogen in the hydrogen container 1 of fuel cell system, above-mentioned hydrogen enters fuel cell pack 3 after by pressure-reducing valve 2, is provided with hydrogen recycle pump 4 at the outlet side of fuel cell pack 3 hydrogen that flow out are returned battery pile 3.The air supply system of described fuel cell comprises filter 9, compressor 8, humidifier 7 and charge air cooler 11,9 filters enter compressor 8 to outside air only through filter, pure air heats (temperature is above 130 ℃) in compressor, entering then in the humidifier 7 increases humidity.Because the working temperature of fuel cell pack 3 is below 70 ℃, so also will enter fuel cell pack 3 at last through charge air cooler 11 coolings through the high temperature air of humidification.
Also be provided with humidity sensor 13, first Pressure gauge 15 and first temperature sensor 14 between the humidifier 7 of described fuel battery air supply system and the charge air cooler 11; Described charge air cooler 11 outlet sections also are provided with second Pressure gauge 16 and second temperature sensor 12.Outlet side at fuel cell pack 3 is provided with radiator 10, and has water tank 5 to accept the condensate that radiator comes out, and the water in the water tank returns in the battery pile by water pump 6.
Fuel battery air humidity measurement method of the present invention may further comprise the steps:
1) measures the humidity φ of air between described humidifier 7 and the charge air cooler 11
1, temperature t
1With air pressure P
1
2) measure the temperature t of described charge air cooler 11 outlet section air
2With air pressure P
2
3) converse the air humidity φ of described charge air cooler 11 outlet sections
2, reduction formula is
Wherein
Be temperature t
1Following water saturation vapour pressure,
Be temperature t
2Following water saturation vapour pressure.
Described humidity sensor 13 is installed between humidifier 7 and the charge air cooler 11, and this moment, air themperature was very high, the situation that condensed water influences humidity sensor work can not occur certainly, can accurately measure the air humidity φ at this place
1, be positioned at charge air cooler 11 outlet section places because air is easy to occur condensed water through cooling, do not accurately measure temperature t herein but do not influence
2, equally also can accurately measure the temperature t between humidifier and the charge air cooler
1With air pressure P
1, and the air pressure P of middle cooling exit section
2Through the reduction formula conversion, just can obtain the air humidity of charge air cooler 11 outlet sections then, also be the air humidity of fuel cell, and then be used for accurately humidifier being regulated control.
Claims (2)
1, a kind of fuel battery air supply system of measuring humidity, comprise the filter (9), compressor (8), humidifier (7) and the charge air cooler (11) that connect successively, it is characterized in that: be provided with humidity sensor (13), first temperature sensor (14) and first Pressure gauge (15) between described humidifier (7) and the charge air cooler (11) successively; Described charge air cooler (11) outlet section is provided with second temperature sensor (12) and second Pressure gauge (16) successively.
2, the described humidity measuring method of measuring the fuel battery air supply system of humidity of a kind of claim 1 is characterized in that: comprise the steps:
1) measures the humidity φ of air between described humidifier (7) and the charge air cooler (11)
1, temperature t
1With air pressure P
1
2) measure the temperature t of described charge air cooler (11) outlet section air
2With air pressure P
2
3) converse the air humidity φ of described charge air cooler (11) outlet section
2, reduction formula is
Wherein
Be temperature t
1Following water saturation vapour pressure,
Be temperature t
2Following water saturation vapour pressure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007100368920A CN100479249C (en) | 2007-01-26 | 2007-01-26 | Air supply system of fuel cell with measurable humidity and humidity measuring method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007100368920A CN100479249C (en) | 2007-01-26 | 2007-01-26 | Air supply system of fuel cell with measurable humidity and humidity measuring method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101013759A CN101013759A (en) | 2007-08-08 |
| CN100479249C true CN100479249C (en) | 2009-04-15 |
Family
ID=38701130
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2007100368920A Expired - Fee Related CN100479249C (en) | 2007-01-26 | 2007-01-26 | Air supply system of fuel cell with measurable humidity and humidity measuring method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100479249C (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9620796B2 (en) | 2013-03-22 | 2017-04-11 | Nissan Motor Co., Ltd. | Fuel cell system and control method therefor |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9537189B2 (en) | 2012-06-11 | 2017-01-03 | Siemens Aktiengesellschaft | Temperature control system for a high-temperature battery or a high-temperature electrolyzer |
| CN108931268B (en) * | 2018-06-25 | 2020-12-22 | 武汉船用电力推进装置研究所（中国船舶重工集团公司第七一二研究所） | Method for testing humidification effect of humidification tank of fuel cell |
| CN112086669B (en) * | 2019-06-14 | 2021-11-16 | 上海汽车集团股份有限公司 | Humidity measurement method and system for air supplied by fuel cell system |
| CN110341504B (en) * | 2019-07-04 | 2024-01-26 | 山西成功汽车制造有限公司 | Range-extending electric vehicle power system and control method thereof |
-
2007
- 2007-01-26 CN CNB2007100368920A patent/CN100479249C/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9620796B2 (en) | 2013-03-22 | 2017-04-11 | Nissan Motor Co., Ltd. | Fuel cell system and control method therefor |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101013759A (en) | 2007-08-08 |
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| C06 | Publication | ||
| PB01 | Publication | ||
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| ASS | Succession or assignment of patent right |
Owner name: SHANGHAI AUTOMOTIVE INDUSTRY ( GROUP ) CO.,LTD. Free format text: FORMER OWNER: AUTOMOTIVE ENGINEERING ACADEMY OF SAIC MOTOR CORPORATION LIMITED. Effective date: 20071012 |
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| C41 | Transfer of patent application or patent right or utility model | ||
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Effective date of registration: 20071012 Address after: 201206 Shanghai Wukang Road No. 390 Applicant after: SAIC Motor Corporation Limited Address before: 201206, 3, Lane 615, Ning Qiao Road, Shanghai, Pudong New Area Applicant before: Automotive Engineering Academy of SAIC Motor Corporation Limited. |
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| C14 | Grant of patent or utility model | ||
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Owner name: SAIC MOTOR CORPORATION LIMITED. Free format text: FORMER OWNER: SHANGHAI AUTOMOTIVE INDUSTRY CORPORATION (GROUP) Effective date: 20111024 |
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Free format text: CORRECT: ADDRESS; FROM: 201206 PUDONG NEW AREA, SHANGHAI TO: 201203 PUDONG NEW AREA, SHANGHAI |
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| TR01 | Transfer of patent right |
Effective date of registration: 20111024 Address after: 201203 Shanghai Zhangjiang High Tech Park of Pudong New Area Songtao Road No. 563 Building No. 1 room 509 Patentee after: Saic Motor Corporation Limited Address before: 201206 Shanghai Wukang Road No. 390 Patentee before: Shanghai Automotive Industry Corporation (Group) |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090415 Termination date: 20200126 |
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| CF01 | Termination of patent right due to non-payment of annual fee |