CN213520057U - Gas humidifying device of fuel cell system - Google Patents
Gas humidifying device of fuel cell system Download PDFInfo
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- CN213520057U CN213520057U CN202022808918.2U CN202022808918U CN213520057U CN 213520057 U CN213520057 U CN 213520057U CN 202022808918 U CN202022808918 U CN 202022808918U CN 213520057 U CN213520057 U CN 213520057U
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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
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- 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
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Abstract
The utility model discloses a fuel cell system's gaseous humidification device, including humidification case, gaseous equipartition device, supersound humidification device, mixed flow device, heating device and vapor separation device, the humidification case is inside hollow box, the humidification incasement portion sets gradually by bottom to top gaseous equipartition device, supersound humidification device, mixed flow device, heating device and vapor separation device, be provided with first air inlet, second air inlet, third air inlet, water inlet and gas outlet on the humidification case respectively. The utility model has the advantages of, this humidification device is simple structure and simple process not only, and is with low costs to can also be applicable to different application sites, can switch mode in a flexible way, the air output size of control gas outlet adapts to different power fuel cell's humidification demand, and controls the gaseous temperature behind the humidification through heating device, prevent to contain moisture in the humidification gas through steam separator and damage fuel cell.
Description
Technical Field
The utility model relates to a fuel cell technical field specifically is a fuel cell system's gaseous humidification device.
Background
The fuel cell is an energy conversion device with zero pollution emission, high conversion efficiency and low noise. Its main components include: membrane electrode, bipolar plate, current collector, end plate, wherein the membrane electrode is its core component. The proton exchange membrane can exert the maximum ion conduction effect under the wet state, and simultaneously, the overall performance and the service life of the galvanic pile are improved. Therefore, a gas humidifying device must be added into the test system, and the humidifying method mainly comprises the following steps: bubbling, spraying, membrane permeation, and the like. Firstly, the principle of bubbling humidification is to disperse gas into a bubbling water tank, and to evaporate water by heating the temperature of the water in the bubbling water tank to humidify the gas flowing through the bubbling water tank, for example, chinese utility model patent publication No. CN202792334U discloses a gas humidification system, which comprises a humidification device, wherein the humidification device comprises a first container, a second container, a spray header and a circulation pump, the first container is set in a cylindrical shape, the circulation pump pumps the humidification liquid in the first container into the second container from the bottom end of the first container, and the humidification liquid flows back to the spray header in the first container to be sprayed out after being heated by the second container; air enters the first container from the lower end of the first container, and an air outlet is formed in the upper end of the first container; after entering the humidifying device, the air firstly passes through the humidifying liquid in the first container in a bubbling mode, and then is further humidified in a spraying mode, so that the air is fully humidified. However, this method is limited by the height of the bubble box and is only suitable for use in low-power test equipment. Secondly, the principle of spraying and humidifying is that precipitation is sprayed out through a spray head and is mixed with gas for a short time to humidify the gas, but the liquid water is easily brought into a test system and a tested electric pile by the method, so that a relative humidity sensing element and even a fuel cell are damaged. Thirdly, the principle of membrane permeation humidification is to realize humidification of gas by permeating water to the other side of the membrane and mixing the water with the gas through the concentration difference of the water, but the permeable membrane is expensive, complex in process, high in cost and narrow in humidity adjustable range.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem how to provide a humidification device that simple structure, can adapt to high-power fuel cell's humidification and prevent fuel cell damage.
In order to solve the technical problem, the utility model provides a following technical scheme:
the utility model provides a fuel cell system's gaseous humidification device, includes humidification case, gaseous equipartition device, supersound humidification device, mixed flow device, heating device and vapor separation device, the humidification case is inside hollow box, the humidification incasement portion sets gradually by bottom to top gaseous equipartition device, supersound humidification device, mixed flow device, heating device and vapor separation device, be provided with first air inlet, second air inlet, third air inlet, water inlet and gas outlet on the humidification case respectively, first air inlet and second air inlet respectively with gaseous equipartition device and mixed flow device are connected, the third air inlet is connected with the one end that the second air inlet was kept away from to the mixed flow device, the water inlet sets up in the humidification bottom of the case portion, the gas outlet sets up at the humidification roof portion.
The humidifying device is simple in structure and process and low in cost, can be suitable for different application sites, can flexibly switch working modes, and can adapt to the humidifying requirements of different power fuel cells by adjusting the flow of the second air inlet and the third air inlet to control the air output of the air outlet, or adjust the flow of the first air inlet and the voltage of the ultrasonic humidifying device to control the air output of the air outlet to adapt to the humidifying requirements of different power fuel cells, and control the temperature of humidified gas through the heating device, and prevent the humidified gas discharged from the air outlet from containing moisture to damage the fuel cells through the water-vapor separation device.
Preferably, the mixed flow device comprises a plurality of groups of mixed flow structures, the mixed flow structures are stacked, each mixed flow structure comprises a mixed flow layer, a mass transfer layer and a buffer layer, the mixed flow layer, the mass transfer layer and the buffer layer are sequentially arranged from bottom to top, and two ends of the mixed flow layer are respectively connected with the second air inlet and the third air inlet; through the matching arrangement of the mixed flow layer and the transmission layer, the sufficient mixing of the gas to be humidified and the steam is ensured to realize the first-stage heat transfer and mass transfer and provide a 'hotbed' in effective contact with the mixed gas, and the second-stage heat transfer and mass transfer are completed.
Preferably, the mixed flow layer comprises a plurality of first pipelines and a plurality of second pipelines, the first pipelines and the second pipelines are horizontally arranged at intervals, the first pipelines are communicated with the second air inlet, the second pipelines are communicated with the third air inlet, the first pipelines and the second pipelines are respectively provided with a first through hole and a second through hole, and the first through holes and the second through holes on the adjacent first pipelines and the second pipelines are oppositely arranged.
Preferably, the transmission layer is formed by horizontally overlapping a plurality of metal sheets, and a plurality of third through holes are uniformly formed in the metal sheets.
Preferably, the metal sheet is of an accordion type.
Preferably, the heating device comprises a plurality of layers of heating wire mesh plates and a temperature control device, the heating wire mesh plates are stacked, two ends of each heating wire mesh plate are respectively fixed on the inner wall of the humidifying box, one end of the temperature control device is connected with the heating wire mesh plates, and the other end of the temperature control device is arranged outside the humidifying box and used for adjusting the temperature of the heating wire mesh plates; not only realize the heating of mist, can also preheat the surface temperature of humidification case and all inside devices before the gas mixing, improve the humidification effect of treating the humidification gas.
Preferably, the temperature control device comprises a temperature probe, a temperature control instrument and an electric power regulator, the temperature probe is respectively arranged on the bottom heating wire mesh plate and the top heating wire mesh plate, the temperature probe is electrically connected with the temperature control instrument, and the output end of the electric power regulator is connected with the heating wire mesh plate.
Preferably, the heating wires of the heating wire net plates between adjacent heating wire net plates are arranged in a staggered manner; the heat conversion rate of the gas mixed by the flow mixing device on the heating wire net plate is improved.
Preferably, the first and second air inlets are arranged in parallel.
Preferably, a liquid level detector is further arranged on the side face of the bottom of the humidifying box.
Compared with the prior art, the beneficial effects of the utility model are that:
1. the humidifying device is simple in structure and process and low in cost, can be suitable for different application sites, can flexibly switch working modes, and can adapt to the humidifying requirements of different power fuel cells by adjusting the flow of the second air inlet and the third air inlet to control the air output of the air outlet, or adjust the flow of the first air inlet and the voltage of the ultrasonic humidifying device to control the air output of the air outlet to adapt to the humidifying requirements of different power fuel cells, and control the temperature of humidified gas through the heating device, and prevent the humidified gas discharged from the air outlet from containing moisture to damage the fuel cells through the water-vapor separation device.
2. Through the matching arrangement of the mixed flow layer and the transmission layer, the sufficient mixing of the gas to be humidified and the steam is ensured to realize the first-stage heat transfer and mass transfer and provide a 'hotbed' in effective contact with the mixed gas, and the second-stage heat transfer and mass transfer are completed.
3. Through heating device's setting, not only realize the heating of mist, can also preheat the surface temperature of humidification case and all inside devices before the gas mixing, improve the humidification effect of treating the humidified gas.
4. The heating wires of the heating wire net plates between adjacent heating wire net plates are arranged in a staggered mode to improve the heat conversion rate of the gas mixed by the flow mixing device on the heating wire net plates.
Drawings
Fig. 1 is a schematic structural diagram of a gas humidification device of a fuel cell system according to an embodiment of the present invention;
FIG. 2 is a schematic structural view of a flow mixing device according to an embodiment of the present invention;
FIG. 3 is a schematic structural view of a mixed flow layer according to an embodiment of the present invention;
FIG. 4 is a front view of a mass transfer layer according to an embodiment of the present invention;
FIG. 5 is a top view of a mass transfer layer according to an embodiment of the present invention;
fig. 6 is a schematic structural diagram of a heating device according to an embodiment of the present invention;
fig. 7 is a schematic diagram of the dislocation of the heating wire net plate according to the embodiment of the present invention.
Detailed Description
In order to facilitate the understanding of the technical solutions of the present invention by those skilled in the art, the technical solutions of the present invention will now be further described with reference to the drawings attached to the specification.
In this application, unless expressly stated or limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can include, for example, fixed connections, removable connections, or integral parts; the connection can be mechanical connection, electrical connection or communication; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.
The terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise.
Referring to fig. 1, the embodiment discloses a gas humidifying device of a fuel cell system, which comprises a humidifying box 1, a gas uniform distribution device 2, an ultrasonic humidifying device 3, a flow mixing device 4, a heating device 5 and a water-vapor separation device 6, wherein the humidifying box 1 is a hollow box body, the gas uniform distribution device 2, the ultrasonic humidifying device 3, the flow mixing device 4, the heating device 5 and the water-vapor separation device 6 are sequentially arranged in the humidifying box 1 from bottom to top, a first gas inlet 11, a second gas inlet 12, a third gas inlet 13, a water inlet 14, a water outlet 15 and a gas outlet 16 are respectively arranged on the humidifying box 1, the first gas inlet 11 and the second gas inlet 12 are respectively connected with the gas uniform distribution device 2 and the flow mixing device 4, the third gas inlet 13 is connected with one end of the flow mixing device 4 far away from the second gas inlet 12, the water inlet and the water outlet 15 are arranged at the bottom of the humidifying box 1, the air outlet 16 is arranged at the top of the humidifying box.
When the gas humidifying device is not provided with a steam boiler on the application site, the second gas inlet 12 and the third gas inlet 13 are closed, water is injected into the humidifying box 1 through the water inlet 14, then the first gas inlet 11 is opened, the gas to be humidified uniformly enters the humidifying box 1 through the gas uniform distribution device 2, meanwhile, the ultrasonic humidifying device 3 is opened to atomize the moisture in the humidifying box 1, the atomized water particles are naturally mixed with the gas to be humidified after being uniformly distributed at the bottom, the humidifying of the gas to be humidified is realized, then the humidified gas enters the heating device 5 to be heated, and the water in the humidified gas is separated through the water-vapor separation device 6 after the heating is finished, so that the humidified gas is obtained and is discharged from the gas outlet 16, and the humidified gas discharged from the gas outlet 16 is prevented from containing moisture and damaging a fuel cell; the voltage of the ultrasonic humidifying device 3 is controlled to control the atomizing amount, so that the humidity of the humidified gas is controlled, the temperature of the humidified gas is ensured by controlling the heating device 5, and the temperature and humidity adjusting range of the gas discharged from the gas outlet 16 is large.
When the gas humidifying device is provided with a steam boiler on the application site, a steam outlet of the steam boiler is communicated with the third gas inlet 13 for conveying steam, the first gas inlet 11 is closed, the second gas inlet 12 is opened for conveying gas to be humidified, the gas to be humidified and the steam respectively enter the mixed flow device 4 for mixing to realize the humidification of the gas to be humidified, then the gas enters the heating device 5 for heating, after the heating is finished, the moisture in the humidified gas is separated by the water-vapor separation device 6, so that the humidified gas is obtained and is discharged from the gas outlet 16, and the humidified gas discharged from the gas outlet 16 is prevented from containing moisture to damage a fuel cell; and the humidity of the humidified gas is controlled by controlling the amount of steam taken in the third air inlet 13, and the temperature of the humidified gas is ensured by controlling the heating device 5, and also the temperature and humidity of the gas discharged from the air outlet 16 are adjusted in a wide range.
In summary, the humidifying device is simple in structure and process and low in cost, can be applied to different application sites, can flexibly switch working modes, controls the air output of the air outlet 16 by adjusting the flow of the second air inlet 12 and the third air inlet 13 to meet the humidifying requirements of fuel cells with different powers, or controls the air output of the air outlet 16 by adjusting the flow of the first air inlet 11 and the voltage of the ultrasonic humidifying device to meet the humidifying requirements of the fuel cells with different powers, controls the temperature of the humidified gas by the heating device 5, and prevents the humidified gas discharged from the air outlet 14 from containing moisture to damage the fuel cells by the water-vapor separation device 6.
In this embodiment, gas equipartition device 2 is the gas equipartition ware, supersound humidification device 3 is the supersound humidifier, water vapor separator 6 is the vapor separation equipment, and the homoenergetic is bought in the market and is obtained.
Referring to fig. 2, the flow mixing device 4 includes a plurality of sets of flow mixing structures, the flow mixing structures are stacked, the flow mixing structures include a flow mixing layer 41, a mass transfer layer 42 and a buffer layer 43, and the flow mixing layer 41, the mass transfer layer 42 and the buffer layer 43 are sequentially arranged from bottom to top.
Referring to fig. 3, the mixed flow layer 41 includes a plurality of first ducts 411 and second ducts 412, the first ducts 411 and second ducts 412 are horizontally arranged at intervals, the first ducts 411 are communicated with the second gas inlet 12, the second ducts 412 are communicated with the third gas inlet 13, first through holes 4111 and second through holes 4121 are respectively arranged on the first ducts 411 and the second ducts 412, and the first through holes 4111 and the second through holes 4121 on the first ducts 411 and the second ducts 412 between adjacent ducts are oppositely arranged, so that the gas to be humidified in the first ducts 411 and the steam in the second ducts 412 can be sufficiently mixed to transfer energy, and the first stage of heat and mass transfer is realized.
Referring to fig. 4 and 5, the transmission layer 42 is formed by horizontally stacking a plurality of layers of pleated wave-shaped metal sheets 421, and a plurality of third through holes 4211 are uniformly formed in the metal sheets 421, so that the contact surface area of the gas mixed by the mixed flow layer 41 and the metal sheets 421 can be effectively increased, a "hotbed" in effective contact is provided for the mixed gas, and second-stage heat and mass transfer is completed in the mass transfer layer 42.
The buffer layer 43 is a section of cavity, so that the mixed gas is buffered, and meanwhile, the resistance in the cavity is smaller than that of the mixed flow layer 41 and the mass transfer layer 42, so that the flow rate of the mixed gas can be increased.
Referring to fig. 6 and 7, the heating device 5 includes a plurality of layers of heating wire mesh plates 51 and a temperature control device 52, the heating wire mesh plates 51 are stacked, two ends of each heating wire mesh plate 51 are respectively fixed on the inner wall of the humidification box 1, and the heating wires of the adjacent heating wire mesh plates 51 are arranged in a staggered manner to improve the heat conversion rate of the gas mixed by the flow mixing device 4 in the heating wire mesh plates 51, as shown in fig. 7, the staggered distance is L.
The temperature control device 52 comprises a temperature probe 521, a temperature control instrument 522, a power regulator 523 and an armor sheath 524, the temperature probes 521 are respectively arranged on the bottom heating wire mesh plate 51 and the top heating wire mesh plate 51, and are arranged in a diagonal direction, is used for measuring the temperature of the bottom and the top of the heating wire mesh plate 51, the connecting end of the temperature probe 521 is electrically connected with the temperature control instrument 522 outside the humidifying box 1 and is used for displaying the temperature signal output by the temperature probe 522, the output end of the power regulator 523 outside the humidification box 1 is connected with the heating wire net plate 51 through a heat conducting wire to provide heat for the heating wire net plate, and the voltage of the power regulator 522 may be changed according to the temperature signal displayed by the temperature control meter 521, thereby controlling the heat of the heater strip screen 51, and controlling the adjustment of the temperature of the mixed gas in real time, and further controlling the temperature of the humidified gas finally discharged from the gas outlet 16. Specifically, referring to fig. 6, two through holes are formed in one side of the humidification chamber 1 close to the temperature control device 52, the armor sheath 524 is hermetically welded in each through hole, the wires and the heat conducting wires connected to the temperature probe 521 respectively penetrate through the armor sheath 524, and the space between the wires and the armor sheath 524 is sealed by using a sealant, so as to prevent gas from leaking out from the humidification chamber 1.
In addition, because the surface temperature of the humidifying box 1 and all devices in the humidifying box is low before the gas is mixed, the humidifying box needs to be preheated for a period of time to ensure a good humidifying effect, and therefore the preheating time can be effectively shortened by utilizing the heating investment of the heating device 5, and the humidifying effect is improved.
Further, the first air inlet 11 and the second air inlet 12 are arranged in parallel.
Further, a liquid level detector 7 is further arranged on the side face of the bottom of the humidification box 1 and used for monitoring the water quantity inside the humidification box 1.
The working principle of the embodiment is as follows: when the gas humidifying device is not provided with a steam boiler at the application site, the second gas inlet 12 and the third gas inlet 13 are closed, water is injected into the humidifying box 1 through the water inlet 14, then the first air inlet 11 is opened, the gas to be humidified uniformly enters the humidifying box 1 through the gas uniform distribution device 2, meanwhile, the ultrasonic humidifying device 3 is opened to atomize the water in the humidifying box 1, the atomized water particles are naturally mixed with the gas to be humidified after the uniform distribution at the bottom to realize the humidification of the gas to be humidified, the humidified gas enters a plurality of layers of heating wire net plates 51 for heating after passing through the flow mixing device 4, the voltage of the power regulator 522 can be changed according to the temperature signal detected by the temperature probe 521 displayed by the temperature control instrument 521, the heat of the heating wire mesh plate 51 is controlled, the adjustment of the temperature of the mixed gas is controlled in real time, and the temperature of the humidified gas finally discharged from the gas outlet 16 is controlled; after heating is finished, moisture in the humidified gas is separated by the water-vapor separation device 6, so that humidified gas is obtained and is discharged from the gas outlet 16, and the moisture in the humidified gas discharged from the gas outlet 16 is prevented from damaging the fuel cell.
When the gas humidifying device is provided with a steam boiler on the application site, the steam outlet of the steam boiler is communicated with the third air inlet 13 for conveying steam, and the first gas inlet 11 is closed, the second gas inlet 12 is opened to convey the gas to be humidified, the gas to be humidified and the steam enter a first pipeline 411 and a second pipeline 412 in the flow mixing device 4 respectively, and flows out of the first through hole 4111 and the second through hole 4121 to be mixed, so as to realize first-stage heat and mass transfer, the mixed gas then contacts the surface of the metal sheet 421 to provide an effective contact "hotbed" for the mixed gas, the second-stage heat and mass transfer is completed in the mass transfer layer 42, and finally the gas passes through the third through hole 4211, enters the water-vapor separation device 6, and separates the moisture in the humidified gas, therefore, the humidified gas is obtained and discharged from the gas outlet 16, and the moisture contained in the humidified gas discharged from the gas outlet 16 is prevented from damaging the fuel cell.
It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein, and any reference signs in the claims are not intended to be construed as limiting the claim concerned.
The above embodiments only show the embodiments of the present invention, and the protection scope of the present invention is not limited to the above embodiments, and for those skilled in the art, a plurality of modifications and improvements can be made without departing from the concept of the present invention, and these modifications and improvements all belong to the protection scope of the present invention.
Claims (10)
1. A gas humidification device of a fuel cell system, characterized in that: including humidification case, gaseous equipartition device, supersound humidification device, mixed flow device, heating device and vapor separator, the humidification case is inside hollow box, the humidification incasement portion sets gradually by bottom to top gaseous equipartition device, supersound humidification device, mixed flow device, heating device and vapor separator, be provided with first air inlet, second air inlet, third air inlet, water inlet and gas outlet on the humidification case respectively, first air inlet and second air inlet respectively with gaseous equipartition device and mixed flow device connect, the third air inlet is connected with the one end that the mixed flow device kept away from the second air inlet, the water inlet sets up in humidification bottom of the case portion, the gas outlet sets up at the humidification roof portion.
2. A gas humidifying device of a fuel cell system according to claim 1, characterized in that: the mixed flow device comprises a plurality of groups of mixed flow structures, the mixed flow structures are stacked and arranged, each mixed flow structure comprises a mixed flow layer, a mass transfer layer and a buffer layer, the mixed flow layer, the mass transfer layer and the buffer layer are sequentially arranged from bottom to top, and two ends of the mixed flow layer are respectively connected with the second air inlet and the third air inlet.
3. A gas humidifying device of a fuel cell system according to claim 2, characterized in that: the mixed flow layer comprises a plurality of first pipelines and second pipelines, the first pipelines and the second pipelines are horizontally arranged at intervals, the first pipelines are communicated with the second air inlet, the second pipelines are communicated with the third air inlet, first through holes and second through holes are respectively formed in the first pipelines and the second pipelines, and the first through holes and the second through holes in the adjacent first pipelines and the second pipelines are oppositely arranged.
4. A gas humidifying device of a fuel cell system according to claim 2, characterized in that: the transmission layer is formed by horizontally superposing a plurality of metal sheets, and a plurality of third through holes are uniformly formed in the metal sheets.
5. A gas humidifying device of a fuel cell system according to claim 4, characterized in that: the metal sheet is of an accordion-like wave shape.
6. A gas humidifying device of a fuel cell system according to claim 1, characterized in that: heating device includes multilayer heating silk otter board and temperature control device, heating silk otter board stack sets up, and fixes respectively at heating silk otter board both ends humidification incasement wall, temperature control device one end is connected heating silk otter board, one end sets up the humidification incasement side is used for adjusting heating silk otter board temperature.
7. A gas humidifying device of a fuel cell system according to claim 6, characterized in that: the temperature control device comprises a temperature probe, a temperature control instrument and an electric power adjuster, wherein the temperature probe is respectively arranged on the bottom heating wire mesh plate and the top heating wire mesh plate, the temperature probe is electrically connected with the temperature control instrument, and the output end of the electric power adjuster is connected with the heating wire mesh plate.
8. A gas humidifying device of a fuel cell system according to claim 6, characterized in that: the heating wires of the heating wire net plates between adjacent heating wire net plates are arranged in a staggered way.
9. A gas humidifying device of a fuel cell system according to claim 1, characterized in that: the first air inlet and the second air inlet are arranged in parallel.
10. A gas humidifying device of a fuel cell system according to claim 1, characterized in that: and a liquid level detector is also arranged on the side surface of the bottom of the humidifying box.
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| CN202022808918.2U CN213520057U (en) | 2020-11-26 | 2020-11-26 | Gas humidifying device of fuel cell system |
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| CN202022808918.2U CN213520057U (en) | 2020-11-26 | 2020-11-26 | Gas humidifying device of fuel cell system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112490474A (en) * | 2020-11-26 | 2021-03-12 | 合肥科威尔电源系统股份有限公司 | Gas humidifying device of fuel cell system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112490474A (en) * | 2020-11-26 | 2021-03-12 | 合肥科威尔电源系统股份有限公司 | Gas humidifying device of fuel cell system |
| CN112490474B (en) * | 2020-11-26 | 2022-03-11 | 合肥科威尔电源系统股份有限公司 | Gas humidifying device of fuel cell system |
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Address after: 230088 No.8 DALONGSHAN Road, hi tech Zone, Hefei City, Anhui Province Patentee after: Cowell Technology Co.,Ltd. Address before: 230088 No.8 DALONGSHAN Road, hi tech Zone, Hefei City, Anhui Province Patentee before: Hefei Kewei Power System Co.,Ltd. |