CN201238067Y - Electric pile activation system of fuel cell - Google Patents
Electric pile activation system of fuel cell Download PDFInfo
- Publication number
- CN201238067Y CN201238067Y CNU2008203012547U CN200820301254U CN201238067Y CN 201238067 Y CN201238067 Y CN 201238067Y CN U2008203012547 U CNU2008203012547 U CN U2008203012547U CN 200820301254 U CN200820301254 U CN 200820301254U CN 201238067 Y CN201238067 Y CN 201238067Y
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- pile
- fuel cell
- activation system
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- gas
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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 discloses a fuel cell galvanic pile activation system, which comprises a pile (6), an anode gas feeding and discharging unit (1), a cathode gas feeding and discharging unit (2), a humidification unit (3), a cooling unit (4) and an external circuit load unit of the external circuit(5). Every unit of the fuel cell galvanic pile activation system is independently positioned, and matched mutually during working. Moreover, the utility model has the advantages of convenient installation and maintenance, low cost, meeting the requirement of the forced variable current activation process for the high-power proton exchange membrane fuel cell galvanic pile under the environment of higher temperature, higher humidity and higher pressure.
Description
Technical field
The utility model relates to a kind of activation system, relates in particular to a kind of high power fuel cell pile activation system.
Background technology
Fuel cell (Fuel Cell is called for short FC) is a kind of fuel and the oxidant of sustainable supply are continuously changed into electric energy by electrochemical reaction Blast Furnace Top Gas Recovery Turbine Unit (TRT).Fuel cell has polytype.Can be divided into by electrolytical difference: alkaline fuel cell (AFC:Alkaline Fuel Cell), Proton Exchange Membrane Fuel Cells (PEMFC:Proton Exchange MembraneFuel Cell), phosphoric acid type fuel cell (PAFC:Phosphoric Acid Fuel Cell); Molten carbonate fuel cell (MCFC:Molten Carbonate Fuel Cell), and Solid Oxide Fuel Cell (SOFC:Solid OxideFuel Cell).Wherein, Proton Exchange Membrane Fuel Cells has high power density, high-energy conversion efficiency, cold-starting, advantages of environment protection, is subjected to the extensive concern of research institution and enterprise, is considered to have most a kind of fuel cell of commercial application prospect.
Because the Proton Exchange Membrane Fuel Cells output voltage of monolithic is lower, generally below 1V, so in actual applications in order to obtain higher output voltage, the composition pile that the monocell of some must be together in series can obtain higher-wattage at the two ends of pile.For the high-power pem fuel cell stack of power output more than 10KW, be mainly used in the power source and the mini thermoelectric heat alliance power station of delivery vehicles such as electric automobile, naval vessels.
The core of Proton Exchange Membrane Fuel Cells is a membrane electrode, and the height of battery performance and the length in useful life depend on the performance of the performance of membrane electrode own to a great extent.Membrane electrode mainly is made up of gas diffusion layers, regulating course, Catalytic Layer and proton exchange membrane, its performance no doubt is subjected to its preparation technology's influence bigger, yet for the membrane electrode of having prepared, in order to make Proton Exchange Membrane Fuel Cells work the time can reach its optimum state and service behaviour fast, improve the utilization ratio of catalyst in the membrane electrode, after the MEA that uses preparation just is assembled into pile, before the normal operation, all to carry out activation processing usually to MEA.The membrane electrode activating mechanism is exactly to make proton exchange membrane acquisition humidification and set up electronics, proton, gas and four kinds of mass transfer passages of water by certain specific activation method.Activation process for pem fuel cell stack, needing to provide enough reacting gas (hydrogen, oxygen and air) air supply system of flow, the cooling water system of thermostatted water is provided all the time, the humidification system of reacting gas humidification and the control pressurer system of stable control pile inlet and outlet pressure are provided, need develop the activating apparatus at pem fuel cell stack that can contain above-mentioned functions simultaneously on this basis, at present domestic also openly report, the especially device that does not activate at high-power pem fuel cell stack.
The utility model content
The purpose of this utility model provides a kind of fuel cell pile activation system, is used to realize that the high power fuel cell pile forces the needs of time-dependent current activation process under higher temperature, higher levels of humidity, elevated pressures environment; It has simple to operate, safe and reliable, each unit independently separately and be installed in the movably cabinet type body, each unit characteristics such as cooperatively interact during work, and whole device is convenient to installation and maintenance, with low cost.
For achieving the above object, the utility model provides a kind of fuel cell pile activation system, and it adopts following technical proposals:
A kind of fuel cell pile activation system comprises pile, anode air feed and exhaust unit, negative electrode air feed and exhaust unit, humidifying unit, cooling unit and external circuit load unit; Wherein,
Described humidifying unit comprises humidification heap that links to each other with cathode inlet with the anode of pile and the constant temperature storage tank that links to each other with the humidification heap, the two links to each other by magnetic force driving pump, be provided with heating element on described constant temperature storage tank, it is controlled by temperature controller;
Described cooling unit comprises the constant temperature storage tank, and it links to each other with the two ends of pile with heat exchanger by magnetic force driving pump respectively, is provided with heating element on described constant temperature storage tank, and it is controlled by temperature controller.The point for measuring temperature of described temperature controller is located at pile cooling water inlet place, and it can be avoided in the cooling water course of conveying owing to the temperature deviation that causes along the journey thermal loss.
Be respectively equipped with temperature sensor between described constant temperature storage tank and the heat exchanger and between heat exchanger and the pile, be used for monitoring the temperature that cooling water enters the heat exchanger front and back, can adjust condensate flow at any time according to the thermometer indicating value, cooling water temperature can be returned in the temperature range of initial value or permission before entering the constant temperature storage tank.
Described anode air feed and exhaust unit and negative electrode air feed and exhaust unit comprise gas feed respectively, be provided with mass flowmenter in gas feed place, it is connected with the humidification heap by triple valve, the other end of described humidification heap links to each other with the anode inlet and the cathode inlet of pile respectively, also is provided with gas-liquid separator and back pressure regulating valve in described pile exit.
Be respectively equipped with soaking zone between the anode inlet of described humidification heap and pile and the cathode inlet, which is provided with temperature controller, being used for that soaking zone is carried out temperature control regulates, thereby make the reacting gas of conveying remain design temperature, it adopts the mode that the heating tape is set outside stainless steel tube to constitute.
Described anode air feed and exhaust unit connect hydrogen and nitrogen two-way source of the gas simultaneously by triple valve, can conveniently carry out the gas transmission adjustment by the operation triple valve.
Described negative electrode air feed and exhaust unit connect oxygen and air two-way source of the gas simultaneously by triple valve, can conveniently carry out the gas transmission adjustment by the operation triple valve.
Described pile is provided with temperature sensor, is used to monitor stack temperature, prevents the too high damage pile of temperature.
The external circuit load system directly links to each other with the pile anode and cathode, can operate the size that electronic load is regulated the pile output current according to the activation procedure of prior setting.
Fuel cell pile activation system of the present utility model, its anode air feed and exhaust system and negative electrode air feed and exhaust system utilize flowmeter adjustment and control reaction gas pressure and feed flow, and reacting gas will enter humidifying unit earlier and is heated to preset temperature by humidification before entering pile, entered pile then and participated in reaction.This is because in the actual motion of pile, for preventing that the proton exchange membrane dehydration from causing electrical property to descend, need suitably add wet process to fuel and the oxidant gas that enters battery, high-power activation apparatus for proton exchange membrane fuel cell is piled by external humidification and is kept the skin wet, and humidifying unit provides the constant temperature deionized water by a circulating water supply system for the humidification heap.
In addition, the activation under big electric current of high power fuel cell pile will be emitted a large amount of heats, if heat can not in time be discharged from, local overheating can cause this place's current density to raise, current density raises and can produce more heat, can burn out membrane electrode when serious, causes hydrogen-oxygen to mix mutually, cause battery pack to lose efficacy, the more serious pile that then may cause explodes.Therefore, cooling unit plays crucial effects for the safe and stable operation of high power fuel cell heap, and high-power activation apparatus for proton exchange membrane fuel cell adopts the deionized water circulation type of cooling.
Humidifying unit and cooling unit all adopt deionized water as working media, but the two is two separate circulatory systems, all be provided with the constant temperature storage tank in two systems and be used for making deionized water to reach preset temperature, and adopt the different magnetic force driving pump of flow to supply with deionized water respectively to humidification heap and pile; Described cooling unit adopts cooling water circulation heat extraction to take away a large amount of heats that pile produces, and by water-cooled heat exchanger heat unnecessary in the cooling water is taken away, and guarantees the constant of temperature when cooling water enters pile; Can operate the size that electronic load is regulated the pile output current according to the activation procedure of prior setting, and can carry out deciding electric current to pile, decide voltage, decide the work of resistance isotype.
Fuel cell pile activation system of the present utility model can be implemented in higher temperature (60?～80?), higher levels of humidity (70%～90%), elevated pressures (under 0.1～0.4MPa) environment, is utilized and is forced the activation process of time-dependent current activation method to the high power fuel cell pile.
Description of drawings
Fig. 1 is the utility model activation of fuel cell system configuration schematic diagram;
Fig. 2 is the utility model anode and cathode air feed and exhaust unit structural representation;
Fig. 3 is the utility model humidifying unit structural representation;
Fig. 4 is the utility model cooling unit structural representation.
Embodiment
Technology contents, characteristics and effect in order to further describe the utility model patent elaborate to the utility model below in conjunction with drawings and Examples.
As shown in Figure 1, a kind of fuel cell pile activation system comprises pile 6, anode air feed and exhaust system 1, negative electrode air feed and exhaust system 2, humidification system 3, cooling water system 4 and external circuit load system 5; Wherein, described anode air feed and exhaust system 1 are imported and exported with pile 6 anodes and are linked to each other, and the fuel gas of required flow is provided for pile; Negative electrode air feed and exhaust system 2 are imported and exported with pile 6 negative electrodes and are linked to each other, for pile provides enough oxidant gas; Humidifying unit 3 makes reacting gas humidification and heating before being arranged on pile anode and cathode inlet; Cooling unit 4 links to each other with pile, and external circuit load system 5 is adopted electroplax with the pile anode and cathode and linked to each other, and can operate the size that electronic load is regulated the pile output current according to the activation procedure of prior setting.
As shown in Figure 2, described anode air feed and exhaust system 1 comprise gas feed, be provided with mass flowmenter 14 in gas feed place, it is connected with humidification heap 31 by triple valve 16, the other end of described humidification heap 31 links to each other with the anode inlet of pile 6, also is provided with gas-liquid separator 113 and back pressure regulating valve 114 in described pile exit; Described humidification heap 31 is provided with soaking zone with the anode inlet of pile, which is provided with temperature controller 18, being used for that described soaking zone is carried out temperature control regulates, described soaking zone adopts the mode that twines heating tape 17 outside stainless steel tube to constitute, also be provided with temperature sensor 110 on the described pile 6, be used for monitoring pile 6 temperature, prevent the too high damage pile of temperature.
Import and pile anode import and export in activation system are respectively equipped with Pressure gauge 13,19,111, and reaction gas enters the pressure of test macro by pressure-reducing valve 12 controls, and reaction gas advances to pile pressure by back pressure regulating valve 114 controls that are placed on system's end.
In the activation process, behind break valve 11 and pressure-reducing valve 12, enter mass flowmenter 14 from gas feed from the hydrogen of hydrogen cylinder; In use, take place,, unidirectional valve 15 is installed at the arrival end of mass flowmenter 14 simultaneously in order to protect mass flowmenter 14 and Pressure gauge 13 for the pressure that prevents pile is higher than this fortuitous event of inlet pressure; Hydrogen enters humidification heap 31 through mass flowmenter 14, unidirectional valve 15, after humidification is heated to design temperature, enters soaking zone and keeps design temperature, and its temperature is controlled by temperature controller 18, and point for measuring temperature is arranged in the exit of gas heated section; Hydrogen leaves heating tape 17 and enters pile 6 anode-side, then after anode generation electrochemical reaction, unreacted gas and water leave pile 6 and enter gas-liquid separator 113, and isolated gas is discharged through back pressure control valve 114, and isolated liquid is discharged through the draining valve 112 of bottom.Pipeline purges for convenience, adds the nitrogen air delivering pipeline in the anode gas circuit, controls whether feed nitrogen by triple valve 16.
As shown in Figure 2, described negative electrode air feed and exhaust system 2 comprise gas feed, be provided with mass flowmenter 24 in gas feed place, it is connected with humidification heap 31 by triple valve 26, the other end of described humidification heap 31 links to each other with the cathode inlet of pile 6, also is provided with gas-liquid separator 212 and back pressure regulating valve 213 in described pile exit; Described humidification heap 31 is provided with soaking zone with the cathode inlet of pile, which is provided with temperature controller 28, is used for making the reacting gas of conveying to remain design temperature, and it adopts the mode that heating tape 27 is set outside stainless steel tube to constitute.
Import and pile anode import and export in activation system are respectively equipped with Pressure gauge 23,29,210, and reaction gas enters the pressure of test macro by pressure-reducing valve 22 controls, and reaction gas advances to pile pressure by back pressure regulating valve 213 controls that are placed on system's end.
In activation process, the oxidant of negative electrode can be oxygen or air, therefore the air that provides from the high purity oxygen gas and the air compressor machine of oxygen cylinder respectively of negative electrode air supply system, it is to adopt high purity oxygen gas or employing air that the operator can control this activation process by triple valve 26; Select a kind of gas that its branch road is opened, gas enters mass flowmenter 24 behind break valve 21 and pressure-reducing valve 22, arrival end at mass flowmenter 24 is provided with gas unidirectional valve 25, oxidant is through mass flowmenter 24, unidirectional valve 25 enters humidification pile 31 humidifications and be heated to design temperature after, enter soaking zone and keep design temperature, enter pile 6 cathode sides then, after negative electrode generation electrochemical reaction, reaction product water and unreacted gas leave pile and enter gas-liquid separator 212, isolated gas is discharged through back pressure control valve 213, and isolated liquid is discharged through the draining valve 211 of bottom.
As shown in Figure 3, described humidifying unit 3 comprises humidification heap 31 that links to each other with cathode inlet with the anode of pile 6 and the constant temperature storage tank 33 that links to each other with the humidification heap, the two links to each other by magnetic-gear pump 35, be provided with heating element 34 on described constant temperature storage tank 33, it is controlled by temperature controller 32;
Gas enters before the pile 6, piles 31 warming and humidifyings to design temperature through humidification earlier, and the deionized water in the humidification heap 31 comes self-constant temperature storage tank 33, offers humidification heap 31 continually by magnetic force driving pump 35; Be provided with heating element 34 in this constant temperature storage tank 33, set the temperature of deionized water by temperature controller 32.The whole circulation pipeline adopts the sealing mode, reduces the loss of deionized water as far as possible.
As shown in Figure 4, described cooling unit 4 comprises constant temperature storage tank 47, and it links to each other with the two ends of heat exchanger 44 with pile 6 by magnetic force driving pump 41 respectively, is provided with heating element 48 on described constant temperature storage tank 47, and it is controlled by temperature controller 42; Be respectively equipped with temperature sensor 46,43 between described constant temperature storage tank 47 and the heat exchanger 44 and between heat exchanger 44 and the pile 6, the point for measuring temperature of described temperature controller 42 is located at pile cooling water inlet place.
Deionized water is heated element 48 and is heated to design temperature in constant temperature storage tank 47 after, cooling water is drawn to pile 6 by magnetic force driving pump 41, after absorbing most of heat of pile generation, produce 5～10 ℃ temperature rise, then flow out pile, enter heat exchanger 44 after, heat exchange takes place with condensed water 45, make cooling water return to initial temperature, flow back to constant temperature storage tank 47 again along transfer pipeline then, be heated element 48 and be heated to design temperature.
Claims (9)
- [claim 1] a kind of fuel cell pile activation system comprises pile (6), anode air feed and exhaust unit (1), negative electrode air feed and exhaust unit (2), humidifying unit (3), cooling unit (4) and external circuit load unit (5), it is characterized in that:Described humidifying unit (3) comprises humidification heap (31) that links to each other with cathode inlet with the anode of pile (6) and the constant temperature storage tank (33) that links to each other with the humidification heap, the two links to each other by magnetic force driving pump (35), be provided with heating element (34) on described constant temperature storage tank (33), it is controlled by temperature controller (32);Described cooling unit (4) comprises constant temperature storage tank (47), it links to each other with the two ends of heat exchanger (44) with pile (6) by magnetic force driving pump (41) respectively, be provided with heating element (48) on described constant temperature storage tank (47), it is controlled by temperature controller (42).
- [claim 2] fuel cell pile activation system according to claim 1 is characterized in that being respectively equipped with temperature sensor (46,43) between described constant temperature storage tank (47) and the heat exchanger (44) and between heat exchanger (44) and the pile (6).
- [claim 3] fuel cell pile activation system according to claim 1 is characterized in that the point for measuring temperature of described temperature controller (42) is located at pile cooling water inlet place.
- [claim 4] fuel cell pile activation system according to claim 1, it is characterized in that described anode air feed and exhaust unit (1) and negative electrode air feed and exhaust unit (2) comprise gas feed respectively, be provided with mass flowmenter (14 in gas feed place, 24), it is by triple valve (16,26) be connected with humidification heap (31), the other end of described humidification heap (31) links to each other with the anode inlet and the cathode inlet of pile respectively, also be provided with gas-liquid separator (113 in described pile exit, 212) and back pressure regulating valve (114,213).
- [claim 5] fuel cell pile activation system according to claim 4 is characterized in that being respectively equipped with soaking zone between the anode inlet of described humidification heap (31) and pile and the cathode inlet, which is provided with temperature controller (18,28).
- [claim 6] fuel cell pile activation system according to claim 5 is characterized in that described soaking zone adopts the mode that twines heating tape (17,27) outside stainless steel tube to constitute.
- [claim 7] fuel cell pile activation system according to claim 1 is characterized in that described anode air feed and exhaust unit (1) connect hydrogen and nitrogen two-way source of the gas simultaneously by triple valve (16).
- [claim 8] fuel cell pile activation system according to claim 1 is characterized in that described negative electrode air feed and exhaust unit (2) connect oxygen and air two-way source of the gas simultaneously by triple valve (26).
- [claim 9] fuel cell pile activation system according to claim 1 is characterized in that described pile (6) is provided with temperature sensor (110).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008203012547U CN201238067Y (en) | 2008-06-23 | 2008-06-23 | Electric pile activation system of fuel cell |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008203012547U CN201238067Y (en) | 2008-06-23 | 2008-06-23 | Electric pile activation system of fuel cell |
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| Publication Number | Publication Date |
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| CN201238067Y true CN201238067Y (en) | 2009-05-13 |
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| CNU2008203012547U Expired - Fee Related CN201238067Y (en) | 2008-06-23 | 2008-06-23 | Electric pile activation system of fuel cell |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102621499A (en) * | 2012-03-28 | 2012-08-01 | 中国东方电气集团有限公司 | Device for testing fuel cell stacks |
| CN109256570A (en) * | 2018-08-01 | 2019-01-22 | 厦门大学 | A kind of fuel cell back pressure regulator device with gas-liquid separating function |
| CN109860662A (en) * | 2019-04-02 | 2019-06-07 | 武汉海亿新能源科技有限公司 | A kind of hydrogen fuel cell low-temperature storing apparatus and its control method |
| CN111063920A (en) * | 2019-12-30 | 2020-04-24 | 新源动力股份有限公司 | Method for detecting fluid distribution consistency of fuel cell stack |
| CN113178598A (en) * | 2021-04-12 | 2021-07-27 | 武汉氢能与燃料电池产业技术研究院有限公司 | Auxiliary start-stop device and start-stop method for oxyhydrogen fuel cell activation test |
| CN113991147A (en) * | 2021-10-27 | 2022-01-28 | 广东省武理工氢能产业技术研究院 | Rapid activation system of proton exchange membrane fuel cell |
| CN116314950A (en) * | 2023-04-21 | 2023-06-23 | 北京亿华通科技股份有限公司 | Hydrogen fuel cell engine performance activation device and method |
-
2008
- 2008-06-23 CN CNU2008203012547U patent/CN201238067Y/en not_active Expired - Fee Related
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102621499A (en) * | 2012-03-28 | 2012-08-01 | 中国东方电气集团有限公司 | Device for testing fuel cell stacks |
| CN102621499B (en) * | 2012-03-28 | 2015-04-01 | 中国东方电气集团有限公司 | Device for testing fuel cell stacks |
| CN109256570A (en) * | 2018-08-01 | 2019-01-22 | 厦门大学 | A kind of fuel cell back pressure regulator device with gas-liquid separating function |
| CN109860662A (en) * | 2019-04-02 | 2019-06-07 | 武汉海亿新能源科技有限公司 | A kind of hydrogen fuel cell low-temperature storing apparatus and its control method |
| CN109860662B (en) * | 2019-04-02 | 2023-11-21 | 武汉海亿新能源科技有限公司 | Low-temperature storage device of hydrogen fuel cell and control method thereof |
| CN111063920A (en) * | 2019-12-30 | 2020-04-24 | 新源动力股份有限公司 | Method for detecting fluid distribution consistency of fuel cell stack |
| CN113178598A (en) * | 2021-04-12 | 2021-07-27 | 武汉氢能与燃料电池产业技术研究院有限公司 | Auxiliary start-stop device and start-stop method for oxyhydrogen fuel cell activation test |
| CN113991147A (en) * | 2021-10-27 | 2022-01-28 | 广东省武理工氢能产业技术研究院 | Rapid activation system of proton exchange membrane fuel cell |
| CN113991147B (en) * | 2021-10-27 | 2023-12-05 | 广东省武理工氢能产业技术研究院 | Quick activation method for proton exchange membrane fuel cell |
| CN116314950A (en) * | 2023-04-21 | 2023-06-23 | 北京亿华通科技股份有限公司 | Hydrogen fuel cell engine performance activation device and method |
| CN116314950B (en) * | 2023-04-21 | 2024-01-26 | 北京亿华通科技股份有限公司 | Hydrogen fuel cell engine performance activation device and method |
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| 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: 20090513 Termination date: 20100623 |