CN201112487Y - Humidifying device for fuel cell - Google Patents
Humidifying device for fuel cell Download PDFInfo
- Publication number
- CN201112487Y CN201112487Y CNU2007201752415U CN200720175241U CN201112487Y CN 201112487 Y CN201112487 Y CN 201112487Y CN U2007201752415 U CNU2007201752415 U CN U2007201752415U CN 200720175241 U CN200720175241 U CN 200720175241U CN 201112487 Y CN201112487 Y CN 201112487Y
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- China
- Prior art keywords
- outer cylinder
- cylinder body
- tube bank
- doughnut
- hollow fiber
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- 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 - Lifetime
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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
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- Fuel Cell (AREA)
Abstract
The utility model provides a humidification device of fuel batteries, which comprises an outer cylinder body, a hollow fiber tube bundle and a driving device. The hollow fiber tube bundle is positioned in the outer cylinder body. The contact of the hollow fiber tube bundle and the outer cylinder body is a dynamically sealing structure. The outer cylinder body is provided with an air import pipe and an air export pipe on both ends of the body, which communicate with the hollow fiber tube of the hollow fiber tube bundle. A cavity is formed between the outer wall of the hollow fiber tube bundle and the outer cylinder body. The driving device drives the hollow fiber tube bundle to rotate around the longitudinal axis of the outer cylinder body. The outer cylinder is provided with an air inlet and an air outlet, which communicates with the cavity. The provided fuel battery humidification device has the advantages of simple process, easy operation and high humidification efficiency.
Description
Technical field
The utility model relates to fuel cell field, relates in particular to a kind of fuel battery humidification device.
Background technology
Proton Exchange Membrane Fuel Cells is a kind of with hydrogen or to purify reformation gas be fuel and oxygen (or air etc. contain oxidizing gas) generation electrochemical reaction produces the device of electric energy.When Proton Exchange Membrane Fuel Cells was worked, the proton in the battery all was to conduct by proton exchange membrane.Carry out proton transfer in a kind of mode of proton hydrate specifically, thereby form electric current.Therefore, in order to guarantee the continual work of Proton Exchange Membrane Fuel Cells energy, must make the proton exchange membrane in the fuel cell keep moistening.In the fuel cell operation process, especially the running of fuel cell pack, can produce a large amount of heats, be easy to the product water that the cathode zone reaction generates is vaporized, and flowing fast of reacting gas can be taken away these moisture rapidly, makes that the proton film in the fuel cell dries out, cause the internal resistance of fuel cell to increase sharply, thereby the performance of battery is sharply descended.Therefore, before reacting gas participates in reaction, need carry out humidification to reacting gas.
The humidifying method that adopts is a lot of at present, and a kind of method commonly used is directly to add a certain amount of water in the reacting gas that enters fuel cell.Owing to need other supplementing water, cause the fuel cell operation cost to increase, and use inconvenience.
Summary of the invention
The purpose of this utility model is high and awkward problem at existing fuel battery humidification device operating cost, provide a kind of process simple, operating cost is low, easy operating and the high fuel battery humidification device of humidification efficient.
The fuel battery humidification device that the utility model provides comprises outer cylinder body, doughnut tube bank and drive unit, described hollow fiber bundle is positioned at outer cylinder body, the doughnut tube bank is a movable sealing structure with contacting of outer cylinder body, the two ends of described outer cylinder body have gas introduction tube and gas eduction tube, and gas introduction tube and gas eduction tube communicate with the hollow fiber conduit of doughnut tube bank; Form cavity between the outer wall of doughnut tube bank and the outer cylinder body, the longitudinal axis of cylindrical shell is the axle rotation beyond the tube bank of described drive unit driving doughnut, and described outer cylinder body has air inlet and gas outlet, and described air inlet and gas outlet communicate with cavity.
The utility model has adopted the doughnut tube bank that is covered with micropore on the tube wall, to contain gas introduction tube that the damp and hot tail gas of the fuel cell of a large amount of moisture content restrains an end by doughnut is directed in the passage in the doughnut tube bank, and the dry reaction gas that will be used to fuel cell humidifying is directed in the cavity that forms between the outer wall of doughnut tube bank and the outer cylinder body from the air inlet of outer cylinder body, utilize the concentration difference diffusion principle, moisture content in the doughnut tube bank inner exhaust gas can be via the micropore permeation on the doughnut tube wall to the cavity that forms with outer cylinder body, owing to permeate with concentration difference as motive force, seepage velocity is slower, the utility model utilizes drive unit driving doughnut to restrain in addition, and the longitudinal axis of cylindrical shell rotates for axle, the centrifugal force that utilizes rotation to produce throws away the moisture content in the doughnut tube bank rapidly from the micropore of tube wall, and enter fast and outer cylinder body between cavity in, the reacting gas of drying is carried out humidification.
The moisture content that the fuel battery humidification device that the utility model provides utilizes fuel cell self to react in the tail gas that generates carries out humidification to the reacting gas that enters fuel cell, do not need to add in addition water, greatly reduce the operating cost of fuel cell, and the doughnut tube bank of adopting water wetted material to make, processing is simple, easy operating.And in the humidifying device that the utility model provides, can control the seepage velocity of moisture content, satisfy the different humidification requirement of fuel cell, humidification efficient height by the rotating speed of accessory drive.
Description of drawings
The structure chart in the vertical section of the fuel battery humidification device that Fig. 1 provides for the utility model;
The structure chart in the vertical section of the movable sealing structure of the fuel battery humidification device that Fig. 2 provides for the utility model.
The structure chart in the vertical section of the movable sealing structure cover plate of the fuel battery humidification device that Fig. 3 provides for the utility model.
Embodiment
Below in conjunction with accompanying drawing the utility model is further described.
As shown in Figure 1, the fuel battery humidification device that the utility model provides comprises outer cylinder body 31, doughnut tube bank 40 and drive unit 10, described hollow fiber bundle 40 is positioned at outer cylinder body 31, doughnut tube bank 40 is a movable sealing structure with contacting of outer cylinder body 31, the two ends of described outer cylinder body 31 have gas introduction tube 21 and gas eduction tube 24, and gas introduction tube 21 and gas eduction tube 24 communicate with the hollow fiber conduit of doughnut tube bank 40; Form cavity 32 between the outer wall of doughnut tube bank 40 and the outer cylinder body 31, it is the axle rotation that described drive unit 10 drives doughnut tube bank 40 longitudinal axis with outer cylinder body 31, described outer cylinder body 31 has air inlet 25 and gas outlet 22, and described air inlet 25 and gas outlet 22 communicate with cavity 32.
Described outer cylinder body 31 is made by the material with certain intensity and heat-insulating property, and as stainless steel, engineering plastics or pottery, its caliber size and the corresponding needed gas flow of fuel cell adapt.The air inlet 25 of described outer cylinder body 31 is used to introduce the dry reaction gas of fueling battery, and gas outlet 22 is used for the reacting gas behind the humidification is derived humidifying device, and then the fueling battery.The two ends of described doughnut tube bank 40 form gas introduction tube 21 and gas eduction tube 24, the gas introduction tube 21 that described doughnut is restrained 40 1 ends is used to introduce the tail gas that fuel cell reaction generates, and the gas eduction tube 24 of the other end is used for the residual exhaust after separating through moisture content is discharged humidifying device; The air inlet 25 of described outer cylinder body 31 and gas outlet 22 communicate with cavity 32, in the cavity 32 that dry reaction gas forms between the outer wall of doughnut tube bank 40 and outer cylinder body 31 by humidification after again via gas outlet 22 derivation.Under the preferable case, air inlet 25 and gas outlet 22 are positioned at the two ends of outer cylinder body 31, more preferably under the situation, described air inlet 25 and gas outlet 22 are positioned at the two ends heteropleural of outer cylinder body 31 so that the moisture content that from tail gas, is separated can be fully with cavity 32 in mix with dry.
Described doughnut tube bank 40 comprises many hollow fiber conduits, and the outer wall of each root hollow fiber conduit closely pastes each other mutually.Because the moisture content infiltration capacity in the unit interval depends on the gas-liquid contact area, so the gas-liquid contact area is big more, the humidification effect is good more.Thus, the utility model adopts many hollow fiber conduits, forms bigger gas-liquid contact area with this, a large amount of moisture content can be infiltrated in the cavity 32 at short notice dry reaction gas is carried out humidification.Many the paths that are introduced into tail gas of inner chamber parallel connection formation by many hollow fiber conduits, and the outer wall of each root hollow fiber conduit closely pastes each other mutually, like this, the outer wall of outermost hollow fiber conduit is kept apart cavity 32 and the path that the doughnut tube cavity forms, so that dry reaction gas and damp and hot tail gas are isolated.
The packed density of described hollow fiber conduit and the needed gas flow of corresponding fuel cell adapt, can be with about 30-80%, tie up bunchy and constitute doughnut tube bank 40 with suitable length, the described mode of tying up can should make the outer wall of each root hollow fiber conduit closely paste mutually each other for being arranged in parallel or weaving manner.Described hollow fiber conduit is conventionally known to one of skill in the art, serve as reasons and be covered with micropore, has the body that high hydrophily and stable on heating hollow-fibre membrane process, as ultrafiltration membrane pipe, reverse osmosis membrane pipe, smart filter membrane pipe, amberplex pipe or the saturating filmed passing tube of liquid, its caliber is approximately 500-2000um, and wall thickness is approximately 200-600um; The aperture of institute's cloth micropore is approximately 200-1400um on the described hollow-fibre membrane, and porosity is approximately 20-50%.
As shown in Figure 2, described device also comprises power transmission shaft 20 and sealing ring 23, the inboard, two ends of described outer cylinder body 31 has depression 27 corresponding to the position of doughnut tube bank 40, doughnut tube bank 40 embeds in the described depression 27 rotationally, is provided with sealing ring 23 between described depression 27 and the doughnut tube bank 40; Power transmission shaft 20 is fixed in the doughnut tube bank 40, and passes doughnut tube bank 40 and stretch out outer cylinder body 31, is connected with the output shaft 28 of drive unit 10.
Described power transmission shaft 20 overlaps with the longitudinal axis of doughnut tube bank 40 and links to each other with doughnut tube bank 40, and power transmission shaft 20 drives connected doughnut tube bank 40 rotation synchronously when being connected with 20 rotations of assurance power transmission shaft with doughnut tube bank 40 in the mode of tying up.Described power transmission shaft 20 is made by the material with certain intensity and heat-insulating property equally, as stainless steel.Described drive unit 10 is positioned at the outside of outer cylinder body 31, and its output shaft 28 is fixedlyed connected with power transmission shaft 20, forms to rigidly fix structure.
Described drive unit 10 can be by external power supply or directly by fuel cell-powered, and controls its rotating speed by regulation voltage or electric current, and its rotating speed is preferably 500-2500 rev/min.Described drive unit 10 is for being made the device that converts electrical energy into mechanical energy of its output shaft rotation arbitrarily by battery or power supply power supply, as DC motor or alternating current motor.
In order to make outer cylinder body 31 and the doughnut tube bank 40 can seal isolation when driving doughnuts tube bank 40 longitudinal axis by drive unit 10 and serve as the axle rotation with outer cylinder body 31, the two ends of doughnut tube bank 40 are movable sealing structure with contacting of outer cylinder body 31, this movable sealing structure is to have depression 27 in the inboard, two ends of outer cylinder body 31 corresponding to the position of doughnut tube bank 40, as shown in Figure 2, the external diameter of this depression 27 generally is slightly larger than the external diameter of doughnut tube bank 40 greater than the external diameter of doughnut tube bank 40.Be provided with sealing ring between described depression 27 and the doughnut tube bank 40, doughnut tube bank 40 embeds in the depression 27 rotationally, makes doughnut tube bank 40 both can rotate in outer cylinder body 31, can prevent the seepage of gas again.Described cover plate 11 and cover plate 12 are made by the material with certain intensity and heat-insulating property equally, as stainless steel.
The wearing and tearing that cause in order to reduce described doughnut tube bank 40 in outer cylinder body 31, to rotate, described fuel battery humidification device can also comprise two cover plates 11, described power transmission shaft 20 passes doughnut tube bank 40, fixedly connected with a cover plate 11 respectively in two ends, and an end wherein passes a cover plate 11 and stretches out outer cylinder body 31, is connected with the output shaft 28 of drive unit 10; Comprise hole 12 on the described cover plate 11, described gas introduction tube 21 and gas eduction tube 24 communicate by the hollow fiber conduit of hole 12 and doughnut tube bank 40, and described doughnut tube bank 40 embeds in the described depression 27 rotationally by cover plate 11.
Described hole 12 can be 1 or a plurality of, evenly or unevenly is distributed on the described cover plate 11.
Because a kind of important use of fuel cell is the power set as automobile, its reacting gas is from atmosphere.Carry out electrochemical reaction to improve fuel cell performance in order to make comparatively clean reacting gas enter fuel cell, can before reacting gas enters fuel cell, filter it.Therefore, described humidifying device also can comprise air cleaner 26, described air cleaner 26 is connected with the air inlet 25 of outer cylinder body 31, is used for airborne dust, impurity and ingress filter are fallen, and makes comparatively clean dry gas enter into humidifying device by air inlet 25 and carries out humidification.
The air filter of described air cleaner 26 for airborne dust, impurity and ingress filter being fallen arbitrarily is as activated carbon aluminium oxide air cleaner.
As shown in Figure 1, fuel battery inside carries out chemical reaction and generates the damp and hot tail gas that comprises a large amount of moisture content, get rid of after the gas introduction tube 21 of restraining 40 1 ends by doughnut enters humidifying device, thus, enter into many tail gas paths that many doughnut tube cavities form; The reacting gas of fueling battery at first filters via the air cleaner 26 at air inlet 25 places of outer cylinder body 31, get rid of dust, impurity and moisture content in the reacting gas, filter in the cavity 32 of formation between the clean dry reaction gas in back is directed into doughnut tube bank 40 via air inlet 25 outer wall and the outer cylinder body 31; Utilize the concentration difference diffusion principle, moisture content in the tail gas in the doughnut tube cavity can see through the micropore of doughnut tube wall to exosmosis, and then enter in the dry gas in the cavity 32, driving rotation axis 20 by drive unit 10 rotates, and then drive doughnut tube bank 40 is rotated synchronously, the centrifugal force that utilize to rotate produces will get rid of in the dry gas in the cavity 32 apace attached to the moisture content in the micropore of doughnut tube wall, make isolated moisture content and mix with dry become and contain the moistening reacting gas of a large amount of moisture content, thereby realized humidification the reacting gas that enters fuel cell.This humid gas derives to supply with fuel cell via the gas outlet 22 of outer cylinder body carries out the electrochemical reaction use.Simultaneously, the gas eduction tube 24 of restraining 40 other ends via doughnut of the residual exhaust in the doughnut tube cavity after aqueous vapor is separated is discharged from humidifying device.
Claims (10)
1. fuel battery humidification device, it is characterized in that, this device comprises outer cylinder body (31), doughnut tube bank (40) and drive unit (10), described hollow fiber bundle (40) is positioned at outer cylinder body (31), doughnut tube bank (40) is a movable sealing structure with contacting of outer cylinder body (31), the two ends of described outer cylinder body (31) have gas introduction tube (21) and gas eduction tube (24), and gas introduction tube (21) and gas eduction tube (24) communicate with the hollow fiber conduit of doughnut tube bank (40); Form cavity (32) between the outer wall of doughnut tube bank (40) and the outer cylinder body (31), described drive unit (10) driving doughnut tube bank (40) serves as the axle rotation with the longitudinal axis of outer cylinder body (31), described outer cylinder body (31) has air inlet (25) and gas outlet (22), and described air inlet (25) and gas outlet (22) communicate with cavity (32).
2. fuel battery humidification device according to claim 1 is characterized in that, described doughnut tube bank (40) comprises many hollow fiber conduits, and the outer wall of each root hollow fiber conduit closely pastes each other mutually.
3. fuel battery humidification device according to claim 2 is characterized in that, described hollow fiber conduit is ultrafiltration membrane pipe, reverse osmosis membrane pipe, smart filter membrane pipe, amberplex pipe or the saturating filmed passing tube of liquid.
4. fuel battery humidification device according to claim 1, it is characterized in that, described device also comprises power transmission shaft (20) and sealing ring (23), the inboard, two ends of described outer cylinder body (31) has depression (27) corresponding to the position of doughnut tube bank (40), doughnut tube bank (40) embeds in the described depression (27) rotationally, is provided with sealing ring (23) between described depression (27) and the doughnut tube bank (40); Power transmission shaft (20) is fixed in the doughnut tube bank (40), and passes doughnut tube bank (40) and stretch out outer cylinder body (31), is connected with the output shaft (28) of drive unit (10).
5. fuel battery humidification device according to claim 4, it is characterized in that, described device also comprises two cover plates (11), described power transmission shaft (20) passes doughnut tube bank (40), fixedly connected with a cover plate (11) respectively in two ends, and an end wherein passes a cover plate (11) and stretches out outer cylinder body (31), is connected with the output shaft (28) of drive unit (10); Comprise hole (12) on the described cover plate (11), described gas introduction tube (21) and gas eduction tube (24) communicate by hole (12) hollow fiber conduit with doughnut tube bank (40), and described doughnut tube bank (40) embeds in the described depression (27) rotationally by cover plate (11).
6. according to claim 4 or 5 described fuel battery humidification devices, it is characterized in that described power transmission shaft (20) overlaps with the longitudinal axis of doughnut tube bank (40).
7. according to claim 4 or 5 described fuel battery humidification devices, it is characterized in that the external diameter of described depression (27) is greater than the external diameter of doughnut tube bank (40).
8. fuel battery humidification device according to claim 1 is characterized in that, described air inlet (25) and gas outlet (22) are positioned at the two ends of outer cylinder body (31).
9. fuel battery humidification device according to claim 8 is characterized in that, described air inlet (25) and gas outlet (22) are positioned at the two ends heteropleural of outer cylinder body (31).
10. according to claim 1,4 or 5 described fuel battery humidification devices, it is characterized in that described device also comprises air cleaner (26), this air cleaner (26) is connected with air inlet (25).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201752415U CN201112487Y (en) | 2007-08-28 | 2007-08-28 | Humidifying device for fuel cell |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201752415U CN201112487Y (en) | 2007-08-28 | 2007-08-28 | Humidifying device for fuel cell |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201112487Y true CN201112487Y (en) | 2008-09-10 |
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ID=39964234
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201752415U Expired - Lifetime CN201112487Y (en) | 2007-08-28 | 2007-08-28 | Humidifying device for fuel cell |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201112487Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103493245A (en) * | 2011-04-27 | 2014-01-01 | 罗伯特·博世有限公司 | Method and container for secure enclosing and secure transport of at least one accumulator |
| EP2528149A4 (en) * | 2010-01-21 | 2015-08-05 | Saginomiya Seisakusho Inc | Filter device |
| CN103730673B (en) * | 2013-12-19 | 2016-02-24 | 双登集团股份有限公司 | Proton Exchange Membrane Fuel Cells humidification and anode exhaust gas processing unit |
| CN109935853A (en) * | 2017-12-18 | 2019-06-25 | 中国科学院大连化学物理研究所 | A kind of direct liquid fuel battery system |
| CN110931827A (en) * | 2019-10-12 | 2020-03-27 | 深圳伊腾迪新能源有限公司 | Membrane tube structure of fuel cell humidifier, preparation method of membrane tube structure and humidifier |
-
2007
- 2007-08-28 CN CNU2007201752415U patent/CN201112487Y/en not_active Expired - Lifetime
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2528149A4 (en) * | 2010-01-21 | 2015-08-05 | Saginomiya Seisakusho Inc | Filter device |
| CN103493245A (en) * | 2011-04-27 | 2014-01-01 | 罗伯特·博世有限公司 | Method and container for secure enclosing and secure transport of at least one accumulator |
| CN103493245B (en) * | 2011-04-27 | 2016-08-17 | 罗伯特·博世有限公司 | For encapsulation safely and method and the container transporting at least one accumulator safely |
| US9802748B2 (en) | 2011-04-27 | 2017-10-31 | Robert Bosch Gmbh | Method and container for secure enclosing and secure transport of at least one accumulator |
| CN103730673B (en) * | 2013-12-19 | 2016-02-24 | 双登集团股份有限公司 | Proton Exchange Membrane Fuel Cells humidification and anode exhaust gas processing unit |
| CN109935853A (en) * | 2017-12-18 | 2019-06-25 | 中国科学院大连化学物理研究所 | A kind of direct liquid fuel battery system |
| CN109935853B (en) * | 2017-12-18 | 2021-05-25 | 中国科学院大连化学物理研究所 | Direct liquid fuel cell system |
| CN110931827A (en) * | 2019-10-12 | 2020-03-27 | 深圳伊腾迪新能源有限公司 | Membrane tube structure of fuel cell humidifier, preparation method of membrane tube structure and humidifier |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20080910 |