CN102324537B - Humidification system of fuel cell - Google Patents
Humidification system of fuel cell Download PDFInfo
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- CN102324537B CN102324537B CN201110254614.9A CN201110254614A CN102324537B CN 102324537 B CN102324537 B CN 102324537B CN 201110254614 A CN201110254614 A CN 201110254614A CN 102324537 B CN102324537 B CN 102324537B
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- fuel cell
- humidifier
- pipeline
- humidification
- air inlet
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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 discloses a humidification air supply system of a fuel cell, comprising a controller connected with a fan, a water pump and a temperature probe, and a humidifier, wherein, the humidifier is provided with a partition inside to divide the interior into an independent upper portion and an independent lower portion, the upper portion forms an air inlet channel, one side is connected with the fan through a pipeline, and the other side is connected with the air inlet pipeline of the fuel cell pile; the lower portion forms a tail gas discharge channel, one side is connected with the air outlet of the fuel cell pile through a pipeline, and the other side is directly emptying; a humiture probe is arranged on the pipeline which connects the upper portion of the humidifier with the air inlet of the fuel cell pile, the inlet of the water pump is connected with the tail gas discharge channel, the outlet of the water pump is connected with a humidification pipeline arranged above the air inlet channel, and a spray head is arranged at the direction from the humidification pipeline to the interior of the humidifier. Compared with the prior art, the invention fully utilizes the heat and moisture in the tail gas of the fuel cell pile, reduces the energy consumption of the system, and improves the work efficiency and stability of the fuel cell system.
Description
Technical field
The present invention relates to fuel cell technology field, particularly a kind of humidification system of fuel cell.
Background technology
At present, proton exchange membrane used in Proton Exchange Membrane Fuel Cells, in battery operation process, need to have hydrone to exist, because only have the proton of aquation to be just free to penetrate proton exchange membrane, arrive electrode cathode from membrane electrode anode and participate in electrochemical reaction, if fuel cell lack of water, to cause proton cannot pass proton exchange membrane, electrode internal resistance sharply increases, battery performance sharply declines, for being kept, proton exchange membrane make proton arrive the transmittability of electrode cathode from membrane electrode anode, need to be to proton exchange membrane humidification, humidification deficiency, proton exchange membrane transmittability is poor, affect battery performance, but undue humidification, can flood electrode, equally also can cause the decline of battery performance, therefore be the key technology of Proton Exchange Membrane Fuel Cells to proton exchange membrane humidification.
The humidification that is applied at present Proton Exchange Membrane Fuel Cells adopts film humidification mostly, membrane humidifier has together with doing with fuel cell, also there is independent film pipe, but, these equipment often complex structure, cost are higher, because membrane humidifier is to be permeated oxidant is carried out to humidification by film by water, therefore humidification efficiency is not high simultaneously.
In addition, through the literature search of prior art is found, number of patent application is 200910061225.7, Granted publication number is CN101510619B, patent name is the negative-pressure humidification vehicle-mounted fuel cell system with perforated plate humidifier, the negative-pressure humidification vehicle-mounted fuel cell system that this patent proposes, comprise air compressor, perforated plate humidifier and fuel cell pile, air in this perforated plate humidifier and the tail gas of fuel cell pile carry out the diffusion of moisture by porous plate, effectively the air that enters humidifier is carried out to humidification, realized effective recovery of moisture in fuel cell pile tail gas simultaneously, its weak point is: system complex, operating cost is high, poor reliability, can not realize the heat and the moisture that comprehensively utilize in fuel cell pile tail gas simultaneously.
Summary of the invention
The object of the invention is to and non-membrane humidifier system complex not high for membrane humidifier humidification efficiency in above-mentioned existing Proton Exchange Membrane Fuel Cells humidification system, the high deficiency of operating cost, the humidification air supply system of the fuel cell that a kind of humidification efficiency is high, simple in structure, operating cost is low is provided, this system makes full use of heat and the moisture in fuel cell pile tail gas, reduce system energy consumption, further improved fuel cell system operating efficiency and stability.
The present invention is achieved by the following technical solutions:
The humidification air supply system of the fuel cell the present invention relates to, comprises blower fan, also comprise humidifier, water pump, humiture probe and with described blower fan, water pump, the humiture controller being connected of popping one's head in; In described humidifier, be provided with dividing plate and be divided into the upper and lower part not communicating, described humidifier top forms air inlet passage, and a side is connected by pipeline with described blower fan, and opposite side is connected with the air inlet pipeline of fuel cell pile; The bottom of described humidifier forms exhaust emissions passage, and a side is connected by pipeline with the gas outlet of fuel cell pile, and opposite side is directly emptying; Described humiture probe is arranged on the pipeline that described humidifier top is connected with the air inlet of fuel cell pile, the import of described water pump is connected with the exhaust emissions passage that the bottom of described humidifier forms, described water delivery side of pump is connected with the humidification pipeline of the air inlet passage top that is arranged on described humidifier top formation, and described humidification pipeline is provided with spray head towards humidifier internal direction.
Preferably, in described humidifier, be also provided with vertical vacuum heat-pipe arranged side by side.
The below of the exhaust emissions passage that preferably, the bottom of described humidifier forms is provided with aqua storage tank.
Preferably, before the import of described blower fan, be provided with filter.
Preferably, described Temperature Humidity Sensor adopts SHT75 digital temperature-humidity sensor.
Compared with prior art, the present invention has following beneficial effect:
1, directly utilize the aqueous water in the tail gas of fuel cell pile discharge, by spray head, the gas that enters fuel cell pile is carried out to humidification, simplify the auxiliary system of fuel cell pile, reduce system energy consumption, further improved fuel cell system operating efficiency and stability.
2, in humidifier, vacuum heat-pipe is set, utilizes the tail gas heat quantity of fuel cell pile discharge to heat to the gas that enters fuel cell pile by heat exchange; By the reduction of exhaust temperature, the moisture in tail gas is further liquefied simultaneously, make the humidification to entering fuel cell pile gas more abundant, effective.
3, by aqua storage tank is set, make in the tail gas of fuel cell pile discharge steam separate more thorough, better ensure the humidification effect of system of the present invention.
Brief description of the drawings
Fig. 1 is structural representation of the present invention;
Fig. 2 is humidifier internal structure schematic diagram of the present invention;
Wherein, 1: blower fan, 2: humidifier, 3: water pump, 4: humiture probe, 5: controller, 6: dividing plate, 7: air inlet passage, 8: exhaust emissions passage, 9: fuel cell pile, 10: filter, 11: humidification pipeline, 12: spray head, 13: vacuum heat-pipe, 14: aqua storage tank.
Embodiment
Below in conjunction with the drawings and specific embodiments, the present invention will be further described.Should be understood that following examples are only for the present invention is described but not for limiting the scope of the invention.
Embodiment
As shown in Figure 1 and Figure 2, the humidification air supply system of fuel cell, comprises blower fan 1, also comprise humidifier 2, water pump 3, humiture probe 4 and with described blower fan 1, water pump 3, humiture 4 controllers that are connected 5 of popping one's head in; In described humidifier 2, be provided with dividing plate 6 and be divided into the upper and lower part not communicating, described humidifier 2 tops form air inlet passage 7, one sides and are connected by pipeline with described blower fan 1, and opposite side is connected with the air inlet pipeline of fuel cell pile 9; The bottom of described humidifier 2 forms exhaust emissions passage 8, one sides and is connected by pipeline with the gas outlet of fuel cell pile 9, and opposite side is directly emptying; Described humiture probe 4 is arranged on the pipeline that described humidifier 2 tops are connected with the air inlet of fuel cell pile 9, the import of described water pump 3 is connected with the exhaust emissions passage 8 that the bottom of described humidifier 2 forms, the outlet of described water pump 3 connects with the humidification pipeline 11 of air inlet passage 7 tops that are arranged on described humidifier 2 tops formations, and described humidification pipeline 11 is provided with spray head 12 towards humidifier 2 internal direction.When system works, by water pump 3, the aqueous water in tail gas in exhaust emissions passage 8 is pumped to humidification pipeline 11, and passed through spray head 12 atomizing sprays to air inlet passage 7, give the gas humidification that enters fuel cell pile 9.Simplifying humidification system, having reduced system energy consumption, when further having improved fuel cell system operating efficiency, realize effective recovery of moisture in fuel cell pile tail gas.
In the present embodiment, controller 5 is popped one's head in and 4 is detected temperature, the humidity of gas that enters fuel cell pile 9 by humiture, when temperature, humidity lower than set lower limit time, open water pump 3 and extract aqueous water; When temperature, humidity higher than set higher limit time, water pump 3 stops pumping.Humiture probe 4 adopts SHT75 digital temperature-humidity sensor, this Temperature Humidity Sensor possesses high accuracy and response time (moisture measurement precision: ± 1.8%RH rapidly, temperature measurement accuracy: ± 0.3 DEG C, response time: <8s, low-power consumption (typ. 30 μ W)), thus the stability of system of the present invention ensured.
As shown in Figure 2, described humidifier 2 is also provided with vertical vacuum heat-pipe 13 arranged side by side, utilizes tail gas heat quantity that fuel cell pile 9 discharges to heat and make in atomized water that spray head 12 sprays not the part of atomization completely further vaporize entering the gas of fuel cell pile 9 by heat exchange; The reduction of exhaust temperature simultaneously is further liquefied the moisture in tail gas, produces more aqueous water, makes the humidification to entering fuel cell pile 9 gases more abundant, effective.In addition, because vacuum heat-pipe 13 comes to the heat of the gas heating use that enters fuel cell pile 9 heat that fuel cell pack 9 is discharged, the exhaust temperature that the temperature that guarantee is heated is discharged lower than this fuel cell pack 9, thereby there will not be and heat too highly, ensured the fail safe of system works of the present invention.
The below of the exhaust emissions passage 8 that in the present embodiment, described humidifier 2 bottoms form is provided with aqua storage tank 14.By being set, aqua storage tank 14 collects the aqueous water in exhaust emissions passage 8, make steam in the tail gas of fuel cell pile discharge separate more thorough, further make water pump 3 pump to the aqueous water of humidification pipeline 11 and can not mix steam and other impurity, better ensure spraying effect, thereby better ensured the humidification effect of system of the present invention.
In the present embodiment, before the import of described blower fan 1, be provided with filter 10, filter out the impurity such as dust in gas, the gas purity reacting that enters fuel cell pile 9 is improved, thereby ensured the operating efficiency of fuel cell pile.
Claims (4)
1. a humidification air supply system for fuel cell, comprises blower fan, it is characterized in that: also comprise humidifier, water pump, humiture probe and with described blower fan, water pump, the humiture controller being connected of popping one's head in; In described humidifier, be provided with dividing plate and be divided into the upper and lower part not communicating, described humidifier top forms air inlet passage, and a side is connected by pipeline with described blower fan, and opposite side is connected with the air inlet pipeline of fuel cell pile; The bottom of described humidifier forms exhaust emissions passage, and a side is connected by pipeline with the gas outlet of fuel cell pile, and opposite side is directly emptying; Described humiture probe is arranged on the pipeline that described humidifier top is connected with the air inlet of fuel cell pile, the import of described water pump is connected with the exhaust emissions passage that the bottom of described humidifier forms, described water delivery side of pump is connected with the humidification pipeline of the air inlet passage top that is arranged on described humidifier top formation, and described humidification pipeline is provided with spray head towards humidifier internal direction.
2. the humidification air supply system of fuel cell according to claim 1, is characterized in that: in described humidifier, be also provided with vertical vacuum heat-pipe arranged side by side.
3. the humidification air supply system of fuel cell according to claim 1 and 2, is characterized in that: the exhaust emissions passage below that the bottom of described humidifier forms is provided with aqua storage tank.
4. the humidification air supply system of fuel cell according to claim 1, is characterized in that: before the import of described blower fan, be provided with filter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110254614.9A CN102324537B (en) | 2011-08-31 | 2011-08-31 | Humidification system of fuel cell |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110254614.9A CN102324537B (en) | 2011-08-31 | 2011-08-31 | Humidification system of fuel cell |
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| CN102324537A CN102324537A (en) | 2012-01-18 |
| CN102324537B true CN102324537B (en) | 2014-08-27 |
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| CN201110254614.9A Active CN102324537B (en) | 2011-08-31 | 2011-08-31 | Humidification system of fuel cell |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110057395B (en) * | 2018-09-26 | 2021-08-06 | 南方科技大学 | Temperature and humidity detection device inside fuel cell |
| CN109728331B (en) * | 2018-11-30 | 2021-10-22 | 北京建筑大学 | Proton exchange membrane fuel cell dynamic performance test system and working method thereof |
| CN109597452A (en) * | 2018-11-30 | 2019-04-09 | 安徽明天氢能科技股份有限公司 | A kind of high power fuel cell test platform gas humiture control system |
| CN111993857B (en) * | 2020-08-11 | 2022-02-11 | 东风汽车集团有限公司 | Fuel cell humidifying system with passenger cabin humidifying function and control method |
| CN113363534B (en) * | 2021-07-07 | 2024-04-12 | 大连锐格新能源科技有限公司 | Fuel cell atomizing and humidifying system and humidifying method thereof |
| CN115064730A (en) * | 2022-05-27 | 2022-09-16 | 冠驰新能科技(南京)有限公司 | Humidifying method for full life cycle of fuel cell |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1320678C (en) * | 2002-05-24 | 2007-06-06 | 上海神力科技有限公司 | High effect humidifying device used for fuel battery |
| JP2007048597A (en) * | 2005-08-10 | 2007-02-22 | Nissan Motor Co Ltd | Fuel cell system |
| JP2007227253A (en) * | 2006-02-24 | 2007-09-06 | Toyota Motor Corp | Humidification device and fuel cell system |
| CN101510619B (en) * | 2009-03-24 | 2011-02-09 | 武汉理工大学 | Negative-pressure humidification vehicle-mounted fuel cell system with perforated plate humidifier |
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| CN102324537A (en) | 2012-01-18 |
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Effective date of registration: 20170607 Address after: 41 F4040 room, Lane 398, Lane 200240, Heqing Road, Shanghai, Minhang District Patentee after: Shanghai Power Engineering Technology Co. Ltd. Address before: 201111 Shanghai city Minhang District Yuanjiang Road No. 5500 building first room B379 Patentee before: Shanghai Yaoyu Industrial Co., Ltd. |
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