CN209087990U - A kind of film humidifier of automotive fuel cell dynamical system - Google Patents
A kind of film humidifier of automotive fuel cell dynamical system Download PDFInfo
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- CN209087990U CN209087990U CN201821769826.4U CN201821769826U CN209087990U CN 209087990 U CN209087990 U CN 209087990U CN 201821769826 U CN201821769826 U CN 201821769826U CN 209087990 U CN209087990 U CN 209087990U
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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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Abstract
A kind of film humidifier of automotive fuel cell dynamical system, it is related to fuel cell system parts technical field, including shell, first through-flow portion, second through-flow portion, there is right-angled intersection in shell and runs through the first fluid access and second fluid access of shell, there are two first through-flow portion's tools and is centrosymmetric positioned at the both ends of first fluid access, first through-flow portion has slanting diversion division, there are two second through-flow portion's tools and is located at the both ends of second fluid access in mirror symmetry, there is also have the membrane tube bundle unit for being arranged along second fluid path direction and connecting the through-flow portion in both ends second in shell.Pass through the film humidifier, fuel cell stack cathode side outlet tail gas discharge humid air have better gas distribution uniformity, circulation path is simple, the pressure loss is small, does not generate turbulent flow, abundant, efficient exchange of moisture can be realized with the dry air to be reacted for entering fuel cell stack cathode side-entrance, meet the needs of fuel cell stack cathode side is to air inlet humid air.
Description
Technical field
The utility model relates to fuel cell system parts technical field more particularly to a kind of automotive fuel cell power
The film humidifier of system.
Background technique
The appearance of automobile produces tremendous influence to human social economy, science and technology, culture.Currently, automobile has become people
It is indispensable in daily life to ride instead of walk and means of transport, auto industry also become the pillar industry of modern economy.With its people
Rapid economic development, Domestic Automotive Industry will also face a fast-developing opportunity period.With the urgency of global auto recoverable amount
Play is promoted, and energy and environmental problem brought by traditional combustion engine automobile is got worse, and energy shortage and environmental pollution are 21 generation
The two big challenges that discipline auto industry faces.
Under the main trend of energy-saving and emission-reduction, a kind of solution party of the Proton Exchange Membrane Fuel Cells automobile as new-energy automobile
Case becomes one of international research hot spot in recent years.But before fuel cell car realizes global industrialization, there are many more problems
It needs to solve, wherein the air supply system of fuel cell is exactly one of relatively crucial problem.The air supply of fuel cell
System has two key components and parts of air compressor machine and film humidifier, wherein film humidifier passes through fuel cell autoreactivity output
The last row air of rich water, which plays, to be humidified the dry air for entering fuel cell pack, prevents film from doing phenomenon, improving pile work effect
The effect in rate and service life.
Currently used air-humidification method has internal humidification method and external humidification method, and wherein external humidification mode includes Bubbling method
Humidification, water spray humidification, break wheel humidification and film humidification etc..Structure is simple, movement-less part, durability are good, nothing because having for film humidification
Fuel cell energy need to be consumed, is humidified using tail gas, improves the advantages such as system effectiveness as the research heat in humidification method
Point.Currently used film humidifier has plate membrane humidifier and tubular membrane humidifier.
In addition film humidifier inner flow passage gas distribution uniformity influences the humidification capability of film humidifier to a certain extent,
Gas distribution uniformity is better, flow passage resistance force of waterproof is smaller, and the humidifying performance of film humidifier is better.And in the prior art, such as generally
Water-vapor exchange efficiency is improved, in such a way that the discharge air of rich water reacts the flowing of air opposite direction with what is dried, but which
It is changed for air-supply from one end to the other side wet, on the one hand, for the wet fluidal texture of changing for realizing adverse current, reaction air and discharge air
Humidity largest segment in same place, humidity minimal segment will lead to the decline for changing wet efficiency in same place;On the other hand, enterprising
It is upper go out and structure content Yi Fashengyin gas distribution uniformity with multiple horizontal membrane tubes is poor, resistance causes greatly moving air
Collision, disorder, lead to the decline of exchange of moisture efficiency.
Utility model content
The purpose of this utility model is to provide a kind of film humidifiers of automotive fuel cell dynamical system to be added by the film
The humid air of wet device, the discharge of fuel cell stack cathode side outlet tail gas has better gas distribution uniformity, gas flow path
Diameter is simple, the pressure loss is small, will not generate turbulent flow, can be with the dry air to be reacted into fuel cell stack cathode side-entrance
It realizes abundant, efficient exchange of moisture, meets the needs of fuel cell stack cathode side is to air inlet humid air in fuel cell system.
To realize purpose of utility model, the utility model is adopted the technical scheme that
A kind of film humidifier of automotive fuel cell dynamical system, including shell, the first through-flow portion, the second through-flow portion, institute
It states there are right-angled intersection and through the first fluid access and second fluid access of the shell in shell, described first is through-flow
There are two portion's tools and is centrosymmetric positioned at the both ends of the first fluid access, and the first through-flow portion has slanting water conservancy diversion
Portion, there are two second through-flow portion's tools and is located at the both ends of the second fluid access in mirror symmetry, in the shell also
There are the membrane tube bundle units for being arranged and connecting the second through-flow portion described in both ends along the second fluid path direction.
Reaction completes the last row air rich in moisture sent out by cathode by pipeline by two from fuel cell as a result,
First through-flow portion passes through shell along first fluid access, and the dry air that reaction is participated in wait enter fuel cell is led to by two second
Stream portion passes through inside the intracorporal membrane tube bundle unit of shell along second fluid access, realizes water by the differential water pressures of membrane tube bundle unit two sides
The exchange divided, is embodied as the humidification of dry air.The first fluid access and second fluid access of right-angled intersection make in membrane tube
Two kinds of beam unit area air changes wet mode for staggered form, changes more uniformly spreading for humid air.Meanwhile centrosymmetric
Two diversion divisions and shell in one through-flow portion form horizontal-perpendicular-horizontal flow path, before entering shell, in last row air
I.e. diagonally diversion division formation flow downward from the front to the back, i.e., last row air entered in the form of biggish face in shell into
Row changes wet, further improves the distributing homogeneity of air.Meanwhile along the last row air of diversion division lateral flow in membrane tube bundle list
The counter-current flow with dry air is also formed above and below member, that is, forms the gas fluid flow configuration of adverse current staggered form,
And then it can realize that also to have adverse current to change that wet medial humidity difference is maximum, to change wet efficiency best while intersecting and change wet advantage excellent
Point.
As the preferred of the utility model, the diversion division is that longitudinal cross-section is in horizontal right-angled trapezium, the diversion division
There is the first through-flow mouth for connecting the shell, the corresponding right-angled trapezium bottom in the high side of the correspondence right-angled trapezium
Side has the first through-flow mouth.
Last row air enters laterally from the first through-flow mouth as a result, the bevel edge of right-angled trapezium is contacted first, in the anti-of bevel edge
The corresponding different location on bevel edge of the last row air under steering-effecting positioned at each height is penetrated to turn to downwards from right-angled trapezium
Enter shell at flash and realize to intersect and changes wet, and the blocking remaining all air by the upper bottom of right-angled trapezium in least significant end
Guiding downwards, has effectively limited the flow direction of last row air, realizes last row air flow channel that is relatively clear, determining, improves
The efficiency of last row air flowing.Last row air i.e. lateral flow under part is not reflected towards by bevel edge extremely contacts upper bottom rear steering,
Adverse current is realized in its lateral flow changes wet effect.
As the preferred of the utility model, the second through-flow portion include the sequentially connected second through-flow mouth, interconnecting piece and
Second through-flow mouth, the second through-flow mouth are fixed in the shell.
As the preferred of the utility model, the interconnecting piece is in gradually big from the described second through-flow mouth to the described second through-flow mouth
It is horn-like.
Dry air enters the intracorporal membrane tube bundle unit of shell by the second through-flow portion as a result, and passes through second in the other end
Through-flow portion flows into fuel cell, and horn-like interconnecting piece disperse dry air can effectively when entering, with equally distributed
Form enters membrane tube bundle unit, and wet efficiency is changed in raising;Fuel electricity is entered by the effect raising flow velocity that collects of loudspeaker in discharge
Reaction efficiency is improved in pond, while the low pressure that the faster flow velocity in end is formed can be oriented to, accelerate the stream of the terminad of dry air
It is dynamic, flow efficiency is improved, flow passage resistance force of waterproof is reduced.
As the preferred of the utility model, there are the water conservancy diversion being arranged along the second fluid path direction in the shell
Wall, the training wall are in circumferentially around in the enclosing wall of the membrane tube bundle unit.
As the preferred of the utility model, the training wall is in towards having water conservancy diversion grid at the described first through-flow portion.
As the preferred of the utility model, the water conservancy diversion grid includes that multiple short sides and the second fluid access are in the same direction
Rectangular opening.
As the preferred of the utility model, the wall surface positioned at water conservancy diversion grid two sides of the training wall is arc-shaped.
As a result, by training wall can specification last row air in the intracorporal flowing of shell, the structure enclosed makes last row empty
Gas will not come into full contact with to other place flowings, guarantee with membrane tube bundle unit;Its water conservancy diversion grid, which further increases, to be flowed downwardly into
Last row air distributing homogeneity;The effect of for example above-mentioned interconnecting piece of its curved wall can be improved flow efficiency, reduce runner
Resistance, and then improve and change wet efficiency.
As the preferred of the utility model, there is sealing ring between the first through-flow portion, the second through-flow portion and the shell.
It can only pass in and out at the first through-flow portion and the second through-flow portion in the intracorporal gas of shell and moisture, further mention as a result,
Normalization, the certainty of high runner, decrease leakage loss.
As the preferred of the utility model, the membrane tube bundle unit includes the hollow fiber conduit of more boundlings.
More hollow fiber conduits can effectively improve the contact area of membrane tube bundle unit in a limited space as a result, improve
Change wet efficiency.
The utility model has the beneficial effects that:
1, the gas fluid flow configuration of adverse current staggered form, gas distribution uniformity when changing wet can be formed by the first through-flow portion
Well, medial humidity difference is big, it is good to change wet performance, high-efficient;
2, by the second through-flow portion and training wall realize it is higher change wet efficiency, meanwhile, gas flow paths more standardize,
It determines, further increases efficiency;
3, the loss such as leakage, turbulent flow is effectively reduced, further increases and changes wet efficiency.
Detailed description of the invention
Fig. 1 is the schematic three dimensional views of the utility model;
Fig. 2 is the schematic three dimensional views of the utility model shell;
Fig. 3 is the top view of the utility model shell;
Fig. 4 is the longitudinal cross-section schematic diagram of the utility model;
Items are respectively as follows: 1 shell in figure, 11 training walls, 12 water conservancy diversion grids, 13 seal grooves, 2 first through-flow portions, and 21 first
Through-flow mouth, 22 diversion divisions, 23 first through-flow mouths, 3 second through-flow portions, 31 second through-flow mouths, 32 interconnecting pieces, 33 second through-flow mouths, 4
Membrane tube bundle unit.
Specific embodiment
The utility model is described in detail below in conjunction with attached drawing:
A kind of film humidifier of automotive fuel cell dynamical system as shown in Figure 1,2,3, 4, including shell 1, first are logical
Stream portion 2, the second through-flow portion 3.
Shell 1 is the hollow shell of a cuboid, and upper and lower surface is opened up there are two rectangular opening, and front and back two sides offers
Two circular holes, interior there are right-angled intersection and through the first fluid access and second fluid access of shell 1, first fluid is logical
Routing is to push up the tetragonous column space that bottom forms to be formed with two rectangular openings, and the last row of the rich water of completion is as reacted in fuel cell
The flow path of air, second fluid access are formed by the cylindrical space formed using two circular holes as front/rear end, as to
Into the flow path of the dry air of fuel cell.There is also have to be arranged along second fluid path direction and connect two in shell
The membrane tube bundle unit 4 in the through-flow portion 3 of following second is held, membrane tube bundle unit 4 includes the hollow fiber conduit of more boundlings, doughnut
Pipe both ends are affixed by baffle limiting, in the salable circular hole for being mounted on 1 front and back of shell of rib, while playing isolation limitation drying
Air can only pass in and out the buffer action of flowing out of hollow fiber conduit.At work, the last row flowed in first fluid access is empty
Gas is located on the outside of hollow fiber conduit, and moisture therein is absorbed by the wall surface of hollow fiber conduit, meanwhile, dry air is by doughnut
It is flowed through in pipe, the moisture of hollow fiber conduit wall surface is inwardly flowed because outer side hydraulic pressure is larger, and dry air will be flowed into flowing
Moisture take away with certain humidity, so as to be reacted into fuel cell.
It is welded in shell 1 or integrally formed with the training wall 11 along second fluid path direction, training wall 11 is enclosed in circumferential
It is around in the enclosing wall of the elliptic cross-section around membrane tube bundle unit 4.Training wall 11 in towards at the first through-flow portion 2 integrally formed with
Water conservancy diversion grid 12.Water conservancy diversion grid 12 includes multiple short sides and second fluid access rectangular opening in the same direction, to prevent wedge angle from leading to gas
Flow unstable, rectangular opening all carries out fillet processing, and air can be divided into multiple tracks air-flow in the longitudinal direction, improve gas
Distributing homogeneity.The wall surface positioned at water conservancy diversion grid two sides of training wall 11 is arc-shaped.
There are two the first through-flow tools of portion 2 and is centrosymmetric positioned at the both ends of first fluid access.First through-flow portion has
Slanting diversion division 22, diversion division 22 are that longitudinal cross-section is in horizontal right-angled trapezium, and diversion division 22 is in the height of corresponding right-angled trapezium
Side have connection shell 1 the first through-flow mouth 23, the first through-flow mouth 23 be rectangular opening, it is opposite with the rectangular opening on shell 1
It answers, there is flange around the first through-flow mouth 23, realize affixed with shell 1, corresponding right angle by screw or rivet on flange
Trapezoidal bottom side has the first through-flow mouth 21, and the first through-flow mouth 21 is cylindrical tube.First through-flow portion 2 of the last row air from top
Into, along 1 lateral flow of shell in diversion division 22, while shell 1 is flowed under part last row air contact bevel edge rear steering, and
Finally flowed out by the first through-flow portion 2 of lower section.
There are two the second through-flow tools of portion 3 and is located at the both ends of second fluid access in mirror symmetry, including sequentially connected
The through-flow mouth 31 of round tube second, interconnecting piece 32 and the second through-flow mouth 33, the second through-flow mouth 33 are in circle identical with circular hole on shell 1
Mouthful, around also there is flange, and shell 1 is fixed in by screw on flange or rivet.Interconnecting piece 32 is in through-flow by second
Mouth 31 is gradually big horn-like to the second through-flow mouth 32.
The rectangular opening and circular of shell 1 are machined with seal groove 13 identical and larger-sized with its shape, and first is logical
Sealing ring is inlaid in seal groove 13 after mounting between stream portion 2, the second through-flow portion 3 and shell 1.
Above embodiments are only described preferred embodiments of the present invention, not to the structure of the utility model
Think and range is defined, without departing from the design concept of the present utility model, ordinary people in the field is practical new to this
The all variations and modifications that the technical solution of type is made each fall within the protection scope of the utility model, the utility model request
The technology contents of protection, are all described in the claims.
Claims (10)
1. a kind of film humidifier of automotive fuel cell dynamical system, including shell, the first through-flow portion, the second through-flow portion, special
Sign is, there are right-angled intersection and through the first fluid access and second fluid access of the shell, institute in the shell
It states there are two first through-flow portion's tools and is centrosymmetric positioned at the both ends of the first fluid access, the first through-flow portion has
Slanting diversion division, there are two second through-flow portion's tools and is located at the both ends of the second fluid access, institute in mirror symmetry
State in shell that there is also have the membrane tube bundle list for being arranged along the second fluid path direction and connecting the second through-flow portion described in both ends
Member.
2. a kind of film humidifier of automotive fuel cell dynamical system according to claim 1, which is characterized in that described to lead
Stream portion is that longitudinal cross-section is in horizontal right-angled trapezium, and the diversion division has connection in the high side of the correspondence right-angled trapezium
The first of the shell is through-flow mouth, corresponding right-angled trapezium bottom side have the first through-flow mouth.
3. a kind of film humidifier of automotive fuel cell dynamical system according to claim 2, which is characterized in that described
Two through-flow portions include the sequentially connected second through-flow mouth, interconnecting piece and the second through-flow mouth, and the second through-flow mouth is fixed in described
Shell.
4. a kind of film humidifier of automotive fuel cell dynamical system according to claim 3, which is characterized in that the company
Socket part is in gradually big horn-like from the described second through-flow mouth to the described second through-flow mouth.
5. a kind of film humidifier of automotive fuel cell dynamical system according to claim 1, which is characterized in that the shell
In vivo there are the training wall being arranged along the second fluid path direction, the training wall is in circumferentially around in the membrane tube bundle
The enclosing wall of unit.
6. a kind of film humidifier of automotive fuel cell dynamical system according to claim 5, which is characterized in that described to lead
Wall is flowed in towards having water conservancy diversion grid at the described first through-flow portion.
7. a kind of film humidifier of automotive fuel cell dynamical system according to claim 6, which is characterized in that described to lead
Flowing grid includes multiple short sides and second fluid access rectangular opening in the same direction.
8. a kind of film humidifier of automotive fuel cell dynamical system according to claim 7, which is characterized in that described to lead
The wall surface positioned at water conservancy diversion grid two sides for flowing wall is arc-shaped.
9. a kind of film humidifier of automotive fuel cell dynamical system according to claim 1, which is characterized in that described
There is sealing ring between one through-flow portion, the second through-flow portion and the shell.
10. a kind of film humidifier of automotive fuel cell dynamical system according to claim 1, which is characterized in that described
Membrane tube bundle unit includes the hollow fiber conduit of more boundlings.
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
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CN109378502A (en) * | 2018-10-30 | 2019-02-22 | 嘉兴德燃动力***有限公司 | A kind of film humidifier of automotive fuel cell dynamical system |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
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CN109378502A (en) * | 2018-10-30 | 2019-02-22 | 嘉兴德燃动力***有限公司 | A kind of film humidifier of automotive fuel cell dynamical system |
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Address after: 314001 room 2401, block B, No. 705, Asia Pacific Road, Nanhu District, Jiaxing City, Zhejiang Province Patentee after: Deran (Zhejiang) Power Technology Co.,Ltd. Address before: 314001 room 2401, block B, No. 705, Asia Pacific Road, Nanhu District, Jiaxing City, Zhejiang Province Patentee before: JIAXING DERAN POWER SYSTEM CO.,LTD. |