CN213366632U - Temperature control system of fuel cell stack - Google Patents
Temperature control system of fuel cell stack Download PDFInfo
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- CN213366632U CN213366632U CN202022603222.6U CN202022603222U CN213366632U CN 213366632 U CN213366632 U CN 213366632U CN 202022603222 U CN202022603222 U CN 202022603222U CN 213366632 U CN213366632 U CN 213366632U
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- fuel cell
- cell stack
- control system
- temperature control
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- 239000000446 fuel Substances 0.000 title claims abstract description 92
- 230000017525 heat dissipation Effects 0.000 claims abstract description 45
- 238000000034 method Methods 0.000 claims abstract description 12
- 238000009423 ventilation Methods 0.000 claims description 19
- 239000012535 impurity Substances 0.000 claims description 7
- 239000000356 contaminant Substances 0.000 claims description 6
- 230000008569 process Effects 0.000 claims description 6
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 5
- 239000001301 oxygen Substances 0.000 claims description 5
- 229910052760 oxygen Inorganic materials 0.000 claims description 5
- 239000002245 particle Substances 0.000 claims description 4
- 238000001914 filtration Methods 0.000 claims description 3
- 238000009826 distribution Methods 0.000 abstract description 6
- 239000012528 membrane Substances 0.000 description 9
- 238000010586 diagram Methods 0.000 description 4
- 239000002184 metal Substances 0.000 description 4
- 230000008878 coupling Effects 0.000 description 3
- 238000010168 coupling process Methods 0.000 description 3
- 238000005859 coupling reaction Methods 0.000 description 3
- 239000003054 catalyst Substances 0.000 description 2
- 238000004891 communication Methods 0.000 description 2
- 239000002826 coolant Substances 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 238000005034 decoration Methods 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000009792 diffusion process Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000000630 rising effect Effects 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000018044 dehydration Effects 0.000 description 1
- 238000006297 dehydration reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000009827 uniform distribution Methods 0.000 description 1
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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 discloses a temperature control system of fuel cell stack. Wherein, this fuel cell stack's temperature control system includes: the fuel cell stack and the fan are used for supplying air quantity to the air duct; variable heat dissipation wind channel sets up between fuel cell stack and fan, and variable heat dissipation wind channel includes at least: a plurality of radiating sub-air ducts; and the controller is used for adjusting the opening number or the closing number of the radiating sub-air channels so as to control the temperature of the fuel electric pile. The utility model provides an among the correlation technique fuel cell pile have the inhomogeneous technical problem of temperature distribution.
Description
Technical Field
The utility model relates to a fuel accuse temperature technical field particularly, relates to a temperature control system of fuel cell stack.
Background
In the related technology, the proton exchange membrane fuel cell is a new fuel energy with high efficiency, low noise and less pollution, the efficiency of the conventional proton exchange membrane fuel cell stack reaches about 50%, half of the energy is released in the form of heat, if the heat can not be discharged in time, the temperature of the cell stack is greatly increased, the performance of the cell stack is reduced due to membrane dehydration, and the cell can be damaged irreversibly when the temperature is serious, namely the fuel cell stack has serious heating problem in the operation process. The conventional heat dissipation mode of the current cell stack is to clamp a heat dissipation fin between a cathode plate and an anode plate to form an independent heat dissipation unit, but the heat dissipation mode of the cell stack not only increases the complexity of the design of the cell stack, but also brings certain challenges to the sealing of the cell stack; if the radiating fins with corrugated cross sections are embedded into the cooling medium flow channel of the metal cathode plate, the radiating fins are positioned below the cooling medium flow channel of the metal cathode plate, and then the metal cathode plate is fixed on the metal anode plate, so that the heat dissipation of the electric pile is realized. For example, the air-cooled fuel cell stack has the problems of uneven surface temperature and serious heating of the stack due to simple flow channel design and no special heat dissipation flow channel, and the performance of the stack is seriously influenced, so that the working efficiency of the stack is greatly reduced.
In view of the above problems, no effective solution has been proposed.
SUMMERY OF THE UTILITY MODEL
The embodiment of the utility model provides a temperature control system of fuel cell stack to at least, there is inhomogeneous technical problem of temperature distribution in solving the fuel cell pile among the correlation technique.
According to an aspect of an embodiment of the present invention, there is provided a temperature control system of a fuel cell stack, including: the fuel cell stack and the fan are used for providing air quantity to the air duct; the variable heat dissipation air duct is arranged between the fuel cell stack and the fan, and at least comprises: a plurality of radiating sub-air ducts; and the controller is used for adjusting the opening number or the closing number of the radiating sub-air channels so as to control the temperature of the fuel electric pile.
Optionally, the variable heat dissipation air duct includes: and the valve plates are respectively arranged corresponding to each heat dissipation sub-air channel and used for controlling the air quantity provided for the corresponding area of the fuel electric pile.
Optionally, the valve plate is disposed at the end of each heat dissipation sub-duct.
Optionally, a button for controlling the opening and closing of the valve plate is arranged on the valve plate of each heat dissipation sub-air duct.
Optionally, the temperature control system further comprises: and the electromagnetic valve is connected with the variable heat dissipation air duct and is used for adjusting the air quantity.
Optionally, the temperature control system further comprises: and the first ventilation air channel is arranged between the fan and the electromagnetic valve.
Optionally, the temperature control system further comprises: an air filter for filtering impurity contaminants in air after the air is inhaled, wherein the impurity contaminants include at least: air particles; and the second ventilation air channel is arranged between the air filter and the fan and used for introducing the filtered first part of air into the fuel electric pile and providing oxygen for the fuel electric pile.
Optionally, the variable heat dissipation air duct, the first ventilation air duct and the second ventilation air duct are all consistent with the cross-sectional size of the fuel cell stack.
Optionally, the temperature control system further comprises: and the exhaust flow passage is used for exhausting other filtered air except the first part of air out of the air channel and exhausting heat generated in the operation process of the fuel cell stack.
Optionally, the temperature control system further comprises: and the temperature sensing module is arranged on the outer surface of the fuel cell stack and used for detecting the temperature of the fuel cell stack.
The embodiment of the utility model provides an in, adopt the fan to provide the amount of wind to the wind channel, set up variable heat dissipation wind channel between fuel cell stack and fan, variable heat dissipation wind channel includes at least: the opening number or the closing number of the plurality of radiating sub-air channels is adjusted through the controller so as to control the temperature of the fuel electric pile. In this embodiment, can adjust the quantity of opening in sub-wind channel through variable heat dissipation wind channel, carry out accurate accuse temperature to the fuel cell stack, guarantee the high-efficient stable work of fuel cell to there is inhomogeneous technical problem of temperature distribution in the fuel cell stack among the solution correlation technique.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the invention without undue limitation to the invention. In the drawings:
figure 1 is a schematic diagram of an alternative fuel cell stack temperature control system according to an embodiment of the present invention;
fig. 2 is a schematic diagram of an alternative variable heat dissipation air duct according to an embodiment of the present invention.
Detailed Description
In order to make the technical solution of the present invention better understood, the technical solution of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts shall belong to the protection scope of the present invention.
It should be noted that the terms "first," "second," and the like in the description and claims of the present invention and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the invention described herein are capable of operation in sequences other than those illustrated or otherwise described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
The embodiment of the utility model provides a can be applied to the accuse temperature environment of fuel cell galvanic pile, the galvanic pile type includes but not limited to: air-cooled fuel cell stacks, pem fuel cell stacks, and applications including, but not limited to: passenger cars, sedans, logistics vehicles, unmanned vehicles, and the like. A plurality of ventilation air channels are adopted, the ventilation air channels adjacent to the fuel cell stack comprise a plurality of variable sub-air channels, and accurate temperature control is carried out on the cell stack by adjusting the opening number of the air channels.
Fuel cell stacks include, but are not limited to: the membrane electrode assembly comprises a membrane electrode, a proton exchange membrane, a polar plate, a catalyst, a gas diffusion layer and a battery electric pile, wherein the battery electric pile can be formed by overlapping a plurality of single batteries in a series/parallel mode. The embodiment of the utility model relates to a fuel electric pile and fuel cell electric pile's the same.
According to an aspect of an embodiment of the present invention, there is provided a temperature control system of a fuel cell stack, including: a fuel cell stack, a fan, a variable heat dissipation air duct, a controller, wherein,
the fuel cell stack and the fan are used for supplying air quantity to the air duct; the fuel galvanic pile can be an air-cooled fuel galvanic pile, and air is blown to the fuel galvanic pile through a fan so as to realize the temperature reduction of the galvanic pile;
variable heat dissipation wind channel sets up between fuel cell stack and fan, and variable heat dissipation wind channel includes at least: a plurality of radiating sub-air ducts; in the embodiment of the utility model, the variable means that the number of the sub-air channels is variable, and the air cooling and the air speed adjustment of the air blowing are realized through the change of the number of the sub-air channels;
and the controller is used for adjusting the opening number or the closing number of the radiating sub-air channels so as to control the temperature of the fuel electric pile. In the embodiment of the present invention, the temperature refers to the temperature of the fuel cell stack itself or the internal temperature, for example, the temperature of the fuel cell stack is detected to be in different temperature ranges of 0-10 ℃, 10-50 ℃, 50 ℃ and more than 65 ℃, and the opening number of the sub-air ducts is adjusted according to the temperature ranges.
The controller can be a singlechip or a membrane electrode in a temperature control system, wherein the membrane electrode refers to a component comprising a proton exchange membrane, a catalyst and a gas diffusion layer.
Above-mentioned temperature control system of fuel cell stack adopts the fan to provide the amount of wind to the wind channel, sets up variable heat dissipation wind channel between fuel cell stack and fan, and variable heat dissipation wind channel includes at least: the opening number or the closing number of the plurality of radiating sub-air channels is adjusted through the controller so as to control the temperature of the fuel electric pile. In this embodiment, can adjust the quantity of opening in sub-wind channel through variable heat dissipation wind channel, carry out accurate accuse temperature to the fuel cell stack, guarantee the high-efficient stable work of fuel cell to there is inhomogeneous technical problem of temperature distribution in the fuel cell stack among the solution correlation technique.
As an alternative embodiment of the utility model, variable heat dissipation wind channel includes: and the valve plates are respectively arranged corresponding to each radiating sub-air channel and used for controlling the air quantity provided for the corresponding area of the fuel electric pile.
Optionally, the valve plate is arranged at the tail end of the air duct of each heat dissipation sub-air duct.
The embodiment of the utility model provides an in, be provided with the control valve block on the valve block in every heat dissipation sub-wind channel and open with closed button.
Optionally, the temperature control system further comprises: and the electromagnetic valve is connected with the variable heat dissipation air duct and is used for adjusting the air quantity.
Optionally, the temperature control system further includes: and the first ventilation air channel is arranged between the fan and the electromagnetic valve.
Optionally, the temperature control system further comprises: an air filter for filtering impurity contaminants in air after the air is inhaled, wherein the impurity contaminants include at least: air particles; and the second ventilation air channel is arranged between the air filter and the fan and used for introducing the filtered first part of air into the fuel electric pile and providing oxygen for the fuel electric pile.
The embodiment of the utility model provides an in, variable heat dissipation wind channel, first ventilation wind channel and second ventilation wind channel all are unanimous with the cross section size of fuel cell stack.
Optionally, the temperature control system further comprises: and the exhaust flow passage is used for exhausting other filtered air except the first part of air out of the air channel and exhausting heat generated in the operation process of the fuel cell stack.
Optionally, the temperature control system further comprises: and the temperature sensing module is arranged on the outer surface of the fuel cell stack and used for detecting the temperature of the fuel cell stack.
Fig. 1 is a schematic diagram of an alternative temperature control system for a fuel cell stack according to an embodiment of the present invention, as shown in fig. 1, the temperature control system comprising: the air cooling system comprises an air filter 1, a first common ventilation air channel 2, a fan 3, a second common ventilation air channel 4, an electromagnetic valve 5, a variable heat dissipation air channel 6, a battery pile 7 and a temperature sensor 8.
In the temperature control system shown in fig. 1, impurities (e.g., particles in air) in the air are removed by the air filter 1 and enter the first common ventilation air duct 2, oxygen in a part of the air provides oxygen for the fuel cell stack, and the surplus other air is exhausted through the exhaust air channel and can take away heat generated during the operation of the fuel cell stack.
A controller may be provided in the solenoid valve 5 and variable heat dissipation duct 6 portions of fig. 1.
The utility model discloses in increased the temperature control system of fuel cell pile, set up temperature sensor 8 on the surface of cell pile, gather the temperature of cell pile through temperature sensor 8, feed back the pile temperature.
Fig. 2 is the according to the utility model discloses an optional variable heat dissipation wind channel's schematic diagram, as shown in fig. 2, the utility model provides a sub-wind channel (including sub-wind channel 1, sub-wind channel 2, sub-wind channel 3, sub-wind channel 4, sub-wind channel 5) in the variable heat dissipation wind channel is variable, the end of every wind channel and battery pile contact is provided with the valve block, it opens and closed button to be equipped with the control valve block on the valve block in every sub-wind channel, through opening and being closed of adjusting the valve block, further realize opening and closing in different regional wind channels, both can shorten the time that the fuel cell pile starts, can make fuel cell pile temperature evenly distributed again, be favorable to its better performance's performance.
Through the feedback of the temperature sensor to the temperature, the electromagnetic valve 5 controls the opening and closing buttons on different sub-air channels, controls the opening number of the sub-air channels in the variable heat dissipation air channel, opens and closes different sub-air channels under different temperature conditions, and realizes the accurate temperature control and the uniform temperature distribution of the fuel cell stack.
For example, when the temperature of the fuel cell stack is 0-10 ℃, the sub-air channel 1 is opened, the air quantity passing through the stack is small, the heat dissipation effect is poor, the heat accumulation in the air-cooled fuel cell stack is facilitated, the temperature of the stack is rapidly raised, and the starting time is shortened;
when the temperature of the fuel cell stack is 10-50 ℃, the sub-air ducts 1 and 3 are opened, the air quantity of the stack is increased, the temperature rising speed of the stack is slowed down, the stack is slowly and uniformly heated, and the uniform distribution of the temperature of the fuel cell stack is realized;
when the temperature of the fuel cell stack reaches 50 ℃, the sub-air ducts 1, 3 and 5 are opened, the air quantity passing through the stack is increased again, the temperature rising speed of the stack is controlled, and the stack works stably (50-65 ℃).
When the temperature of the fuel cell stack exceeds 65 ℃, the sub-air ducts 1, 2, 3, 4 and 5 are opened, the air quantity is increased, the heat dissipation speed of the stack is accelerated, and the stack is controlled to operate under the working condition of the optimal temperature.
The first common ventilation air duct 2, the second common ventilation air duct 4 and the variable heat dissipation air duct 6 in fig. 1 are all the same as the cross-sectional dimension of the cell stack.
Optionally, the embodiment of the utility model provides an in fan, solenoid valve all set up inside the wind channel.
The embodiment of the utility model provides a, the different regional amount of wind and the wind speed of the different sub-wind channel control fuel cell galvanic pile in the variable heat dissipation wind channel realize carrying out accurate accuse temperature to fuel cell different regions to solve the inhomogeneous problem of temperature distribution of fuel cell galvanic pile, guarantee the high-efficient stable work of fuel cell.
In the above embodiments of the present invention, the descriptions of the respective embodiments have respective emphasis, and for parts that are not described in detail in a certain embodiment, reference may be made to the related descriptions of other embodiments.
In the embodiments provided in the present application, it should be understood that the disclosed technology can be implemented in other ways. The above-described embodiments of the apparatus are merely illustrative, and for example, the division of the units may be a logical division, and in actual implementation, there may be another division, for example, multiple units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, units or modules, and may be in an electrical or other form.
The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.
In addition, functional units in the embodiments of the present invention may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit. The integrated unit can be realized in a form of hardware, and can also be realized in a form of a software functional unit.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (10)
1. A temperature control system for a fuel cell stack, comprising:
the fuel cell stack and the fan are used for providing air quantity to the air duct;
the variable heat dissipation air duct is arranged between the fuel cell stack and the fan, and at least comprises: a plurality of radiating sub-air ducts;
and the controller is used for adjusting the opening number or the closing number of the radiating sub-air channels so as to control the temperature of the fuel electric pile.
2. The temperature control system of claim 1, wherein the variable heat dissipation air duct comprises:
and the valve plates are respectively arranged corresponding to each heat dissipation sub-air channel and used for controlling the air quantity provided for the corresponding area of the fuel electric pile.
3. The temperature control system of claim 2, wherein the valve plate is disposed at a duct end of each of the heat sink sub-ducts.
4. The temperature control system according to claim 2, wherein a button for controlling the opening and closing of the valve sheet is disposed on the valve sheet of each heat dissipation sub-duct.
5. The temperature control system of claim 1, further comprising:
and the electromagnetic valve is connected with the variable heat dissipation air duct and is used for adjusting the air quantity.
6. The temperature control system of claim 5, further comprising:
and the first ventilation air channel is arranged between the fan and the electromagnetic valve.
7. The temperature control system of claim 6, further comprising:
an air filter for filtering impurity contaminants in air after the air is inhaled, wherein the impurity contaminants include at least: air particles;
and the second ventilation air channel is arranged between the air filter and the fan and used for introducing the filtered first part of air into the fuel electric pile and providing oxygen for the fuel electric pile.
8. The temperature control system of claim 7, wherein the variable heat dissipation air duct, the first ventilation air duct, and the second ventilation air duct are all consistent with a cross-sectional dimension of the fuel cell stack.
9. The temperature control system of claim 8, further comprising:
and the exhaust flow passage is used for exhausting other filtered air except the first part of air out of the air channel and exhausting heat generated in the operation process of the fuel cell stack.
10. The temperature control system of claim 1, further comprising:
and the temperature sensing module is arranged on the outer surface of the fuel cell stack and used for detecting the temperature of the fuel cell stack.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022603222.6U CN213366632U (en) | 2020-11-11 | 2020-11-11 | Temperature control system of fuel cell stack |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022603222.6U CN213366632U (en) | 2020-11-11 | 2020-11-11 | Temperature control system of fuel cell stack |
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| CN213366632U true CN213366632U (en) | 2021-06-04 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112234227A (en) * | 2020-11-11 | 2021-01-15 | 珠海格力电器股份有限公司 | Temperature control system, control method and control equipment of fuel cell stack |
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- 2020-11-11 CN CN202022603222.6U patent/CN213366632U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112234227A (en) * | 2020-11-11 | 2021-01-15 | 珠海格力电器股份有限公司 | Temperature control system, control method and control equipment of fuel cell stack |
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