CN219778926U - Fuel cell air system and automobile - Google Patents
Fuel cell air system and automobile Download PDFInfo
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- CN219778926U CN219778926U CN202223402655.0U CN202223402655U CN219778926U CN 219778926 U CN219778926 U CN 219778926U CN 202223402655 U CN202223402655 U CN 202223402655U CN 219778926 U CN219778926 U CN 219778926U
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- fuel cell
- air
- water
- intercooler
- humidity
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- 239000000446 fuel Substances 0.000 title claims abstract description 89
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 78
- 239000007788 liquid Substances 0.000 claims description 10
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims description 7
- 239000001257 hydrogen Substances 0.000 claims description 7
- 229910052739 hydrogen Inorganic materials 0.000 claims description 7
- 239000012528 membrane Substances 0.000 claims description 7
- 230000001276 controlling effect Effects 0.000 description 7
- 239000007921 spray Substances 0.000 description 6
- 239000007789 gas Substances 0.000 description 5
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 230000003584 silencer Effects 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 239000008358 core component Substances 0.000 description 1
- 230000030279 gene silencing Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000008054 signal transmission Effects 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
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- Fuel Cell (AREA)
Abstract
The utility model provides a fuel cell air system and an automobile, wherein the fuel cell air system comprises a controller, a humidity sensor and a humidifying mechanism; the humidity sensor is arranged between the intercooler and the fuel cell stack and used for detecting air humidity; the humidifying mechanism is arranged between the air compressor and the intercooler and is used for realizing air humidification; the controller is connected with the humidity sensor and the humidifying mechanism and is used for controlling the humidifying mechanism to humidify the air according to the air humidity. According to the utility model, the specific humidity of the air in the connecting pipeline is detected by the humidity sensor and compared with the target humidity, and the humidifying mechanism is controlled by the controller to humidify the air in the connecting pipeline, so that the target humidity is finally achieved.
Description
Technical Field
The utility model belongs to the technical field of hydrogen fuel cell air systems, and particularly relates to a fuel cell air system and an automobile.
Background
The proton exchange membrane is a core component in the hydrogen fuel cell stack, and needs to work under a certain water content to maintain higher proton conductivity, so that the power generation efficiency of the hydrogen fuel cell is improved, and the service life of the proton exchange membrane is prolonged. The water required in the proton exchange membrane is typically humidified from the air by a humidifier in the air system. The existing humidifier has a complex structure and high price, and is not beneficial to the reduction of the cost of the fuel cell system and the large-scale popularization.
Disclosure of Invention
The utility model provides a fuel cell air system and an automobile, which are used for solving the problems of complex structure and high price of the existing humidifier.
The fuel cell air system comprises an air filter, an air compressor, an intercooler and a fuel cell stack which are connected in sequence, and also comprises a controller, a humidity sensor and a humidifying mechanism; the humidity sensor is arranged between the intercooler and the fuel cell stack and used for detecting air humidity; the humidifying mechanism is arranged between the air compressor and the intercooler and is used for realizing air humidification; the controller is connected with the humidity sensor and the humidifying mechanism and is used for controlling the humidifying mechanism to humidify the air according to the air humidity.
Preferably, the humidifying mechanism comprises a water sprayer and a liquid reservoir, wherein the water sprayer is connected with the controller; the first end of the water sprayer is connected with a connecting pipeline between the air compressor and the intercooler, and the second end of the water sprayer is connected with the liquid reservoir.
Preferably, the humidifying mechanism further comprises a water pump connected with the controller; the water pump is disposed between the reservoir and the water sprayer.
Preferably, the reservoir comprises a water bottle, one end of the water bottle is connected with the water sprayer, and the second end of the water bottle is connected to the air outlet of the fuel cell stack.
Preferably, the fuel cell air system further comprises a first shut-off valve and a second shut-off valve connected to the controller; the first stop valve is arranged between the intercooler and an air inlet of the fuel cell stack, and the humidity sensor is arranged between the intercooler and the first stop valve; the second stop valve is arranged on an air outlet of the fuel cell stack.
Preferably, a muffler is connected to one side of the second shut-off valve.
Preferably, one end of the water kettle is connected with a connecting pipeline between the second stop valve and the silencer.
Preferably, the first stop valve and the second stop valve are butterfly valves; the water sprayer is a porous water sprayer.
Preferably, the fuel cell stack is a proton exchange membrane hydrogen fuel cell stack; the air compressor is a centrifugal air compressor; the intercooler is a water-cooled intercooler.
An automobile includes the fuel cell air system.
According to the utility model, an air filter, an air compressor, an intercooler and a fuel cell stack are sequentially connected through pipelines, the intercooler is arranged on the fuel cell stack to form a connecting pipeline, and a humidity sensor is arranged between the intercooler and the fuel cell stack and used for detecting air humidity; the humidifying mechanism is arranged between the air compressor and the intercooler and is used for realizing air humidification; and the controller is connected with the humidity sensor and the humidifying mechanism and is used for controlling the humidifying mechanism to humidify the air according to the air humidity. Detecting the specific humidity of the air in the connecting pipeline through a humidity sensor, comparing the specific humidity with the target humidity, and controlling a humidifying mechanism to humidify the air in the connecting pipeline through a controller to finally reach the target humidity; the controller, the humidity sensor and the humidifying mechanism can be matched to control the humidity of the air system of the fuel cell conveniently, and compared with a humidifier scheme which is complex in structure and high in price, the humidifier scheme is simpler and more effective, low in price and good in practicability.
Drawings
Fig. 1 is a flow chart of a fuel cell air system of the present utility model.
1, an air filter; 2. an air compressor; 3. an intercooler; 4. a fuel cell stack; 5. a controller; 6. a humidity sensor; 7. a humidification mechanism; 71. a water sprayer; 72. a reservoir; 73. a water pump; 8. a first stop valve; 9. a second shut-off valve; 10. a muffler.
Detailed Description
In order to make the technical problems, technical schemes and beneficial effects solved by the utility model more clear, the utility model is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.
In the description of the present utility model, it should be understood that the terms "longitudinal," "radial," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate orientations or positional relationships that are based on the orientation or positional relationships shown in the drawings, merely to facilitate describing the present utility model and simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model. In the description of the present utility model, unless otherwise indicated, the meaning of "a plurality" is two or more.
In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.
The embodiment of the utility model provides a fuel cell air system, referring to fig. 1, the fuel cell air system comprises an air filter 1, an air compressor 2, an intercooler 3 and a fuel cell stack 4 which are sequentially connected, and also comprises a controller 5, a humidity sensor 6 and a humidifying mechanism 7; a humidity sensor 6, provided between the intercooler 3 and the fuel cell stack 4, for detecting air humidity; a humidifying mechanism 7 arranged between the air compressor 2 and the intercooler 3 for realizing air humidification; and the controller 5 is connected with the humidity sensor 6 and the humidifying mechanism 7 and is used for controlling the humidifying mechanism 7 to realize air humidification according to the air humidity.
As an example, the air cleaner 1, the air compressor 2, the intercooler 3, and the fuel cell stack 4 are connected in order by pipes. The intercooler 3 is mounted on the fuel cell stack 4 by bolts to form a connecting pipe. A humidity sensor 6, provided between the intercooler 3 and the fuel cell stack 4, for detecting air humidity. A humidifying mechanism 7, which is arranged between the air compressor 2 and the intercooler 3, and is used for realizing air humidification. And the controller 5 is connected with the humidity sensor 6 and the humidifying mechanism 7 and is used for controlling the humidifying mechanism 7 to realize air humidification according to the air humidity. The specific humidity of the air in the connecting pipeline is detected by a humidity sensor 6 and is compared with the target humidity, and a controller 5 controls a humidifying mechanism 7 to humidify the air in the connecting pipeline, so that the target humidity is finally achieved; the controller 5, the humidity sensor 6 and the humidifying mechanism 7 are matched to control the humidity of the air system of the fuel cell conveniently, and compared with a humidifier scheme which is complex in structure and high in price, the humidifier scheme is simpler and more effective, low in price and good in practicability.
In this example, the air filter 1 may be a special air filter for a fuel cell system, the humidity sensor 6 may be a common humidity sensor, the controller 5 may be a common fuel cell controller, during the operation of the fuel cell, under the pressurization effect of the air compressor 2, fresh air enters the air compressor 2 after being filtered by particles and chemical substances through the air filter 1, at this time, the air humidity and the pressure rise, the air humidity is reduced by the intercooler 3, and then enters the fuel cell stack 4 for reaction, the reacted gas is discharged into the atmosphere, and the air inlet flow of the fuel cell air system is adjusted by controlling the rotation speed of the air compressor 2 by the controller 5. The air system of the fuel cell sprays water to the connecting pipeline through the humidifying mechanism 7 to achieve the aim of humidifying air, replaces the scheme of humidifying by adopting a complex and expensive humidifier at present, and achieves the aims of simplifying the structure of the air subsystem of the fuel cell and reducing the application cost of the fuel cell.
In one embodiment, referring to FIG. 1, the humidification mechanism 7 includes a water jet 71 and a reservoir 72, the water jet 71 being connected to the controller 5; the first end of the water sprayer 71 is connected with a connecting pipeline between the air compressor 2 and the intercooler 3, and the second end of the water sprayer 71 is connected with the liquid reservoir 72.
As an example, it is described that the humidifying mechanism 7 includes a water jet 71 and a reservoir 72, the water jet 71 being connected to the controller 5; the first end of the water sprayer 71 is connected with a connecting pipeline between the air compressor 2 and the intercooler 3, and the second end of the water sprayer 71 is connected with the liquid reservoir 72; the controller 5 receives the signal transmitted from the humidity sensor 6 to judge the air humidity of the connection pipe, so as to determine whether the air humidity is normal, and then controls the water sprayer 71 to spray water. When humidification is needed, the controller 5 controls the water sprayer 71 to work, the water sprayer 71 absorbs water from the liquid storage device 72 and then is conveyed into a connecting pipeline between the air compressor 2 and the intercooler 3, and the humidifier is convenient to control the humidity of the fuel cell air system, and is simpler and more effective than a humidifier scheme with a complex structure and high price, low in price and good in practicability.
In one embodiment, referring to FIG. 1, the humidification mechanism 7 further includes a water pump 73 connected to the controller 5; a water pump 73 is provided between the reservoir 72 and the water jet 71.
In this example, the humidification mechanism 7 is described as further comprising a water pump 73, the water pump 73 is an electronic water pump connected to the controller 5, the water pump 73 is disposed between the reservoir 72 and the water sprayer 71, and the rotation speed of the water pump 73 can be controlled by the controller 5, so as to control the water spraying rate of the water sprayer 71, and facilitate the control of the humidity of the fuel cell air system.
In one embodiment, referring to fig. 1, the reservoir 72 comprises a water bottle having one end connected to the water jet 71 and a second end connected to the air outlet of the fuel cell stack 4.
In this example, the reservoir 72 is described as comprising a kettle, which is a plastic kettle, one end of the kettle is connected to the water sprayer 71, and the second end of the kettle is connected to the air outlet of the fuel cell stack 4, so that the kettle can be filled with water from the outside, and can collect liquid water from a connecting pipe of the air outlet of the fuel cell stack 4, thereby improving the utility of the device.
In one embodiment, referring to fig. 1, the fuel cell air system further includes a first shut-off valve 8 and a second shut-off valve 9 connected to the controller 5; the first stop valve 8 is provided between the intercooler 3 and the air intake port of the fuel cell stack 4, and the humidity sensor 6 is provided between the intercooler 3 and the first stop valve 8; a second shut-off valve 9 is provided on the air outlet of the fuel cell stack 4.
As an example, it is described that the fuel cell air system further includes a first shut-off valve 8 and a second shut-off valve 9 connected to the controller 5, the first shut-off valve 8 being disposed between the intercooler 3 and the air intake of the fuel cell stack 4, and the humidity sensor 6 being disposed between the intercooler 3 and the first shut-off valve 8; the second stop valve 9 is arranged on the air outlet of the fuel cell stack 4, and when the fuel cell stack 4 is closed, the controller 5 controls the first stop valve 8 and the second stop valve 9 to be closed, so that air is prevented from entering the fuel cell stack 4; by the opening degree of the second shut-off valve 9, the air pressure entering the fuel cell stack 4 can be regulated and controlled.
In an embodiment, referring to fig. 1, a muffler 10 is connected to one side of the second shut-off valve 9.
As an example, it is described that a muffler 10 is connected to one side of the second shut-off valve 9, and the reacted gas leaves the fuel cell stack 4 through the second shut-off valve 9 to enter the muffler 10 for noise reduction treatment and then is discharged into the atmosphere. The muffler 10 is made of plastic material and is specially used for the fuel cell system, so that noise can be reduced, and the practicability of the device can be improved.
In an embodiment, referring to fig. 1, one end of the jug is connected to a connecting line between the second shut-off valve 9 and the muffler 10.
As an example, it is described that one end of the water kettle is connected to the connecting pipe between the second shut-off valve 9 and the muffler 10, so that the water kettle is arranged to collect liquid water from the connecting pipe, thereby improving the utility of the apparatus.
In one embodiment, referring to fig. 1, the first stop valve 8 and the second stop valve 9 are butterfly valves; the water jet 71 is a porous water jet.
In the example, the first stop valve 8 and the second stop valve 9 are butterfly valves, so that the operation is simple and convenient, and the second stop valve 9 has the back pressure valve function. The water spray 71 adopts a porous water spray for air passage injection on a common automobile engine, so that water spray is more uniform, and humidification efficiency can be improved.
In one embodiment, referring to fig. 1, the fuel cell stack 4 is a proton exchange membrane hydrogen fuel cell stack; the air compressor 2 is a centrifugal air compressor; the intercooler 3 is a water-cooled intercooler.
In the example, the proton exchange membrane type hydrogen fuel cell stack is adopted as the fuel cell stack 4, the centrifugal air compressor is adopted as the air compressor 2, and the water-cooled intercooler is adopted as the intercooler 3, so that the rapid and safe circulation of air in the connecting pipeline can be ensured during the operation of the fuel cell, and the working efficiency of equipment is improved.
An embodiment of the present utility model provides an automobile, referring to fig. 1, comprising a fuel cell air system.
In this example, the water sprayer 71, the water pump 73, the humidity sensor 6, the first shutoff valve 8, the second shutoff valve 9, and the controller 5 are connected by a wire harness, and signal transmission is performed. During the operation of the fuel cell, under the supercharging effect of the air compressor 2, fresh air enters the air compressor 2 after being filtered by particles and chemical substances through the air filter 1, at the moment, the air humidity and the pressure rise, the air humidity is reduced through the intercooler 3, then the air enters the fuel cell stack 4 for reaction through the first stop valve 8, and the reacted gas leaves the fuel cell stack 4 through the second stop valve 9 and enters the silencer 10 for silencing treatment, and then is discharged into the atmosphere.
The intake air flow rate of the fuel cell air system is adjusted by controlling the rotation speed of the air compressor 2 by the controller 5, and the air pressure entering the fuel cell stack 4 is adjusted by the opening degree of the second shut-off valve 9.
Humidity control of the air system is as follows: the water in the kettle is pressurized by the water pump 73 and then atomized by the water sprayer 71 and sprayed into the connecting pipeline, as the humidity of the air is increased to 200 ℃ at most after being compressed by the air compressor 2, the atomized water enters the high-temperature air and then is evaporated into gas state, the gas state is uniformly mixed in the pipeline, the specific humidity of the air in the pipeline is detected by the humidity sensor 6 and is compared with the target humidity, the water pump 73 and the water sprayer 71 are controlled by the controller 5 to realize closed-loop control, and finally the target humidity is reached. When the fuel cell stack 4 is closed, the controller 5 controls the first shut-off valve 8 and the second shut-off valve 9 to be closed, preventing air from entering the stack.
The air system of the fuel cell sprays water to the connecting pipeline through the humidifying mechanism 7 to achieve the aim of humidifying air, replaces the scheme of humidifying by adopting a complex and expensive humidifier at present, and achieves the aims of simplifying the structure of the air subsystem of the fuel cell and reducing the application cost of the fuel cell.
The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the utility model.
Claims (8)
1. The fuel cell air system comprises an air filter, an air compressor, an intercooler and a fuel cell stack which are connected in sequence, and is characterized by further comprising a controller, a humidity sensor and a humidifying mechanism;
the humidity sensor is arranged between the intercooler and the fuel cell stack and used for detecting air humidity;
the humidifying mechanism comprises a water sprayer, a liquid reservoir and a water pump, wherein the first end of the water sprayer is connected with a connecting pipeline between the air compressor and the intercooler, and the second end of the water sprayer is connected with the liquid reservoir; the water pump is arranged between the liquid reservoir and the water sprayer;
the controller is connected with the humidity sensor, the water sprayer and the water pump and is used for controlling the humidifying mechanism to humidify air according to the air humidity.
2. The fuel cell air system of claim 1, wherein the reservoir comprises a water bottle having one end connected to the water jet and a second end connected to the air outlet of the fuel cell stack.
3. The fuel cell air system according to claim 2, further comprising a first shut-off valve and a second shut-off valve connected to the controller;
the first stop valve is arranged between the intercooler and an air inlet of the fuel cell stack, and the humidity sensor is arranged between the intercooler and the first stop valve;
the second stop valve is arranged on an air outlet of the fuel cell stack.
4. A fuel cell air system according to claim 3, wherein a muffler is connected to one side of the second shut-off valve.
5. The fuel cell air system according to claim 4, wherein the second end of the water kettle is connected to a connecting line between the second shut-off valve and the muffler.
6. The fuel cell air system of claim 3, wherein the first shut-off valve and the second shut-off valve are butterfly valves; the water sprayer is a porous water sprayer.
7. The fuel cell air system according to claim 1, wherein the fuel cell stack is a proton exchange membrane hydrogen fuel cell stack; the air compressor is a centrifugal air compressor; the intercooler is a water-cooled intercooler.
8. An automobile comprising the fuel cell air system of any one of claims 1-7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223402655.0U CN219778926U (en) | 2022-12-19 | 2022-12-19 | Fuel cell air system and automobile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223402655.0U CN219778926U (en) | 2022-12-19 | 2022-12-19 | Fuel cell air system and automobile |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219778926U true CN219778926U (en) | 2023-09-29 |
Family
ID=88102842
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223402655.0U Active CN219778926U (en) | 2022-12-19 | 2022-12-19 | Fuel cell air system and automobile |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219778926U (en) |
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2022
- 2022-12-19 CN CN202223402655.0U patent/CN219778926U/en active Active
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