CN212485375U - Fuel cell temperature control integrated system - Google Patents
Fuel cell temperature control integrated system Download PDFInfo
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- CN212485375U CN212485375U CN202020788953.XU CN202020788953U CN212485375U CN 212485375 U CN212485375 U CN 212485375U CN 202020788953 U CN202020788953 U CN 202020788953U CN 212485375 U CN212485375 U CN 212485375U
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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
The utility model discloses a fuel cell temperature control integrated system, which comprises a cooling circulation water path for cooling a fuel cell stack and a fan cooling water path for cooling a fan, wherein the cooling circulation water path comprises a small circulation water path and a large circulation water path, the small circulation water path and the large circulation water path are partially shared, and the part of the shared water path is arranged in the cell stack, the other part of the small circulation water path is connected with the heater, the other part of the large circulation water path is connected with the radiator, a selector valve is connected between the small circulation water path and the large circulation water path and controls the conduction of the small circulation water path or the large circulation water path, the part of the fan cooling water path is arranged in the fan, the other part of the fan cooling water path is connected with the radiator, the fan cooling water path and the large circulation water path are separately arranged in the radiator, and the selector valve, the heater and the radiator are all connected with the controller, so that the use safety and the service life of the fuel cell.
Description
Technical Field
The utility model relates to a fuel cell heat dissipation technical field, concretely relates to fuel cell control by temperature change integrated system.
Background
With the development of clean energy, fuel cells are becoming a way to supply more and more electronic products, and hydrogen fuel cells are one of them and can be used in various fields.
The hydrogen fuel cell is a device for generating electric energy by chemical reaction of hydrogen and oxygen, and inevitably generates part of heat while generating electric energy, and the hydrogen fuel cell needs to work under a proper temperature working condition, and the temperature cannot fluctuate too much, so that the proper temperature not only can improve the power generation efficiency of the fuel cell, but also can prolong the service life of the fuel cell. However, the conventional fuel cell system only uses cooling water to dissipate heat from the fuel cell stack, and cannot maintain the operation stability of the fuel cell. Meanwhile, when the fuel cell works, the fan generates compressed air to supply air to the cell stack, the fan also generates a large amount of heat when working, and heat dissipation which is set independently for the fan does not exist in the prior art.
Disclosure of Invention
The to-be-solved technical problem of the utility model is to provide a fuel cell control by temperature change integrated system has realized the temperature management to fuel cell cooling water route, has guaranteed that fuel cell piles all can be stable, reliable work of going on under any ambient temperature, has strengthened the safe in utilization of fuel cell pile, has prolonged the life of fuel cell pile.
In order to solve the technical problem, the utility model provides a fuel cell temperature control integrated system, which comprises a cooling circulation water path for cooling a fuel cell stack and a fan cooling water path for cooling a fan, wherein the cooling circulation water path comprises a small circulation water path and a large circulation water path, the small circulation water path and the large circulation water path share the same part, the shared part of the water path is arranged in the fuel cell stack, the other part of the small circulation water path is connected with a heater, the other part of the large circulation water path is connected with a radiator, a selector valve is connected between the small circulation water path and the large circulation water path, the selector valve controls the small circulation water path or the large circulation water path to be conducted, the fan cooling water path is arranged in the fan, the other part of the fan cooling water path is connected with the radiator, and the fan cooling water path and the large circulation water path are separately arranged in the radiator, and the selector valve, the heater and the radiator are all connected with the controller.
Furthermore, the one end that the cell stack was advanced in the sharing water route is provided with first sensor, the one end that the sharing water route goes out the cell stack is provided with the second sensor, first water pump set up in on the sharing water route between first sensor and the second sensor, first sensor and second sensor are used for detecting the temperature and the pressure in water route, first sensor, second sensor and first water pump all with the controller links to each other.
Furthermore, a filter is connected to the common water path, and the filter is arranged at one end of the common water path, where the common water path enters the cell stack.
Further, a proportional valve and a flowmeter are connected to the shared water path, the proportional valve and the flowmeter are sequentially connected to one end, entering the cell stack, of the shared water path, and the proportional valve and the flowmeter are connected with the controller.
Furthermore, the fan cooling water path is connected to a fan controller and a intercooler, the fan cooling water path is driven to circulate by a second water pump, and the second water pump is connected with the controller.
Further, the fan controller is respectively electrically connected with the fan and the controller.
Furthermore, a third sensor is connected to the fan cooling water path and connected to the controller.
Further, the selector valve comprises a first solenoid valve connected with the heater in series and a second solenoid valve connected with the radiator in series, and the first solenoid valve and the second solenoid valve are both connected with the controller.
Further, the heat sink is a heat dissipation fan.
The utility model discloses a beneficial effect that fuel cell control by temperature change integrated system compared with prior art is, carries out the disconnect-type with fuel cell stack cooling cycle water route and fan cooling water route and handles, has strengthened the safe in utilization of fuel cell stack, has prolonged the life of fuel cell stack, and fuel cell stack can all be stable, reliable work of going on under any ambient temperature simultaneously.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention.
Detailed Description
The present invention is further described with reference to the following drawings and specific embodiments so that those skilled in the art can better understand the present invention and can implement the present invention, but the embodiments are not to be construed as limiting the present invention.
Referring to fig. 1, a schematic diagram of an embodiment of a fuel cell temperature control integrated system according to the present invention is shown. The utility model discloses a control by temperature change integrated system includes carries out refrigerated cooling circulation water route and carries out refrigerated fan 13 cooling water route to fan 13 to fuel cell stack 1. The cooling circulation water path and the fan 13 cooling water path are separately arranged, the two cooling water paths can not be gathered together, the cooling water in the cooling circulation water path for cooling the fuel cell stack 1 is guaranteed not to be influenced by the external environment, the conductivity of the cooling water path can be kept at a lower level for a longer time, the service life of the cooling water is prolonged, and the replacement period is prolonged.
Specifically, the cooling circulation water path comprises a small circulation water path and a large circulation water path, the small circulation water path and the large circulation water path are partially shared, and other parts of the small circulation water path and the large circulation water path are connected in parallel and then are connected into the shared water path to form complete circulation water paths respectively. In this embodiment, a part of the common water path is disposed in the cell stack 1, and the other part of the common water path is located outside the cell stack 1, and the common water path flows into the cell stack 1 from one end of the cell stack 1 and then flows out from the other end of the cell stack 1. In the embodiment, the other part of the small circulation water path is connected to the heater 3, when the temperature of the cooling water is too low, the cooling water enters the small circulation water path for circulation, and the heater 3 heats the cooling water to ensure the stable operation of the fuel cell at low temperature; the other part of the large circulation water path is connected to a radiator 11, when the temperature of cooling water is too high, the cooling water enters the large circulation water path for circulation, and the radiator 11 cools the cooling water, so that the stable operation of the fuel cell at high temperature is ensured. In this embodiment, the radiator 11 is a radiator fan to facilitate cooling of the cooling water. In order to control the switching of the cooling water between the small circulation water channel and the large circulation water channel, a selector valve is connected between the small circulation water channel and the large circulation water channel, and the selector valve controls the conduction of the small circulation water channel or the large circulation water channel. The selection valve may be a three-way valve or other valve body capable of controlling the conduction of the small circulation water path or the large circulation water path respectively, in this embodiment, the selection valve includes a first electromagnetic valve 4 connected in series with the heater 3 and a second electromagnetic valve 10 connected in series with the radiator 11, and both the first electromagnetic valve 4 and the second electromagnetic valve 10 are connected to the controller 17. When cooling water needs to be heated, the controller 17 controls the first electromagnetic valve 4 to be switched on and the second electromagnetic valve 10 to be switched on, and when cooling water needs to be radiated, the controller 17 controls the first electromagnetic valve 4 to be switched on and the second electromagnetic valve 10 to be switched on. The part in fan 13 cooling water route set up in fan 13, another part in fan cooling water route inserts radiator 11, fan cooling water route and the sharing radiator 11 in the big circulation water route, simplify temperature control system's structure, reduce temperature control system's volume, simultaneously fan cooling water route and the separated set of big circulation water route in radiator 11 guarantee that the conductivity of cooling water keeps a lower level for a long time in the cooling circulation water route, guarantee fuel cell's work efficiency. For controlling each part, the utility model discloses in still set up controller 17, selector valve, heater 3 and radiator 11 all link to each other with controller 17.
For improving the accuracy of temperature control, in this embodiment, the one end that the sharing water route got into the cell stack 1 is provided with first sensor 9, the one end that the sharing water route goes out the cell stack 1 is provided with second sensor 2, first water pump 5 set up in on the sharing water route between first sensor 9 and second sensor 2. The first sensor 9 and the second sensor 2 are used for detecting the temperature and the pressure of the water circuit. For convenience of description, the displayed temperature of the first sensor 9 is denoted as T1, i.e., the cooling water inlet temperature of the cell stack 1, and the displayed temperature of the second sensor 2 is denoted as T2, i.e., the cooling water outlet temperature of the cell stack 1. In order to realize the automatic control of the cooling circulation water path, the sensor and the water pump are connected with the controller 17. The utility model is provided with two temperature thresholds, namely M1 and M2, and M1 is a low-temperature alarm temperature point of the cell stack 1; m2 is the high temperature alarm temperature point of the cell stack 1, and the specific values of M1 and M2 can be selected according to the actual conditions of the fuel cell in the actual process. When the controller 17 receives the temperature T2< M1 detected by the second sensor 2, the controller 17 controls the first electromagnetic valve 4 to be conducted, the second electromagnetic valve 10 to be closed, the small circulation water path to be conducted, and the heater 3 starts to heat the cooling water under the control of the controller 17; when the controller 17 receives the temperature M1< T2< M2 detected by the second sensor 2, the controller 17 controls the first electromagnetic valve 4 to be closed, the second electromagnetic valve 10 to be conducted, the large circulation water path to be conducted and the radiator 11 not to be started, and regulates the speed of the first water pump 5 according to the cooling water inlet temperature T1 of the cell stack 1 to ensure that the temperature T1 is within the allowable range of the cell stack 1; when the controller 17 receives the temperature T2> M2 detected by the second sensor 2, the controller 17 controls the first electromagnetic valve 4 to be closed, the second electromagnetic valve 10 to be conducted, the large circulation water path is conducted, the radiator 11 starts to perform forced heat radiation on the cooling water under the control of the controller 17, and the first water pump 5 is regulated according to the cooling water inlet temperature T1 of the cell stack 1 to adjust the pressure of the cooling circulation water path, so that the temperature T1 is ensured to be within the allowable range of the cell stack 1.
In the utility model discloses a another preferred embodiment, still be connected with filter 6 on the sharing water route, filter 6 set up in the one end that the battery pile 1 was advanced in the sharing water route for the ion that 1 cooling cycle water route of filtration battery pile was appeared, the cooling water in the assurance battery pile 1 cooling cycle water route is longer accords with the operation requirement of battery pile 1, reduces the change frequency of 1 cooling water of battery pile, reduces the manpower, the material resources cost of later maintenance.
In another preferred embodiment of the present invention, a proportional valve 7 and a flowmeter 8 are further connected to the shared water path, the proportional valve 7 and the flowmeter 8 are sequentially connected to one end of the shared water path entering the battery stack 1, and both the proportional valve 7 and the flowmeter 8 are connected to the controller 17. The flowmeter 8 monitors the cooling water flow of the cooling circulation water channel, and after the controller 17 receives the cooling water flow, the controller controls the opening of the proportional valve 7 to control the cooling water flow entering the cell stack 1 according to the cooling condition of the cell stack 1, so that the stable adjustment of the cooling temperature of the cell stack 1 is ensured.
Because the work of fan 13 is through fan controller 12 control rotational speed to adjust the pressure and the flow of air outlet, fan 13 is after the air pressure boost simultaneously, and the gas temperature is higher, for reducing the high temperature air temperature after the pressure boost, in order to reduce the heat load, improves the air input, fan 13 still is connected with intercooler 14, and fan controller 12 and intercooler 14 also can produce the heat in the work, consequently fan cooling water route still inserts fan controller 12 and intercooler 14, cools off fan 13 system whole. In order to adjust the outlet air temperature of the fan 13 as precisely as possible, the fan controller 12 is electrically connected to the fan 13 and the controller 17, respectively. The fan controller 12 sends the collected information such as the state of the fan 13 to the controller 17, and the controller 17 feeds back the fan controller 12 to adjust the rotating speed by combining the information such as the temperature of the cooling water of the cell stack 1, so as to control the pressure and the flow of the air outlet of the fan 13. Furthermore, a second water pump 15 and a third sensor 16 are connected to the fan cooling water path, and both the second water pump 15 and the third sensor 16 are connected to the controller 17. The third sensor 16 collects the temperature and pressure of cooling water circulated in the cooling water path of the fan 13 and discharged from the intercooler 14, and feeds the temperature and pressure back to the controller 17, and the controller 17 controls the rotating speed of the second water pump 15 according to other information so as to adjust the pressure of the cooling water path of the fan 13 and ensure that the temperature of the cooling water is within an allowable range.
The utility model discloses at the during operation, when the temperature T2< M1 that second temperature sensor gathered, controller 17 controls first solenoid valve 4 and opens, and second solenoid valve 10 is closed, and 1 cooling water entering little circulative cooling water route of fuel cell stack. At this time, the controller 17 controls the rotating speed of the first water pump 5 to control the pile feeding pressure of the small circulation water path, receives the cooling water pile feeding pressure actually acquired by the first sensor 9, and adjusts the rotating speed of the water pump in real time, so that the pile feeding pressure of the small circulation water path is accurately controlled; the controller 17 adjusts the opening of the proportional valve 7 to control the flow of the small circulation water channel, receives the cooling water flow actually collected by the flowmeter 8, and adjusts the opening of the proportional valve 7 in real time, so that the flow of the small circulation cooling water is accurately controlled; meanwhile, the controller 17 controls the heater 3 to work to heat the small circulation water path. When the temperature M1< T2< M2 detected by the second sensor 2 is M1< T2< M2, the controller 17 controls the first electromagnetic valve 4 to be closed and the second electromagnetic valve 10 to be opened, and the cooling water of the fuel cell stack 1 enters the large circulation cooling water channel. At the moment, the radiator 11 is not started, the controller 17 controls the rotating speed of the water pump to control the pile feeding pressure of the large circulation water path, receives the cooling water pile feeding pressure actually acquired by the first sensor 9, and adjusts the rotating speed of the first water pump 5 in real time, so that the pile feeding pressure of the large circulation water path is accurately controlled; the controller 17 adjusts the opening of the proportional valve 7 to control the flow of the large circulation water path, receives the cooling water flow actually collected by the flowmeter 8, and adjusts the opening of the proportional valve 7 in real time, thereby accurately controlling the flow of the large circulation cooling water. The temperature fluctuation of the cooling water is ensured to be small, and the problem that the temperature fluctuation of the fuel cell stack 1 is large due to the fact that the temperature fluctuation of the cooling water is too large when the small circulation water path is switched to the large circulation water path is solved. When the temperature T2> M2 collected by the second sensor 2, the controller 17 controls the first electromagnetic valve 4 to be closed and the second electromagnetic valve 10 to be conducted, and the cooling water directly enters the large circulation. The controller 17 controls the rotating speed of the water pump to control the pile feeding pressure of the large circulation water path, receives the cooling water pile feeding pressure actually acquired by the first sensor 9, and adjusts the rotating speed of the first water pump 5 in real time, so that the pile feeding pressure of the large circulation cooling water is accurately controlled; the controller 17 adjusts the opening of the proportional valve 7 to control the flow of the large circulation water path, receives the cooling water flow actually collected by the flowmeter 8, and adjusts the opening of the proportional valve 7 in real time, so that the flow of the large circulation cooling water is accurately controlled, and the temperature of the cooling water entering the reactor is ensured to be within an allowable range. The cooling water path of the fan 13 works all the time, the controller 17 controls the rotating speed of the second water pump 15 to control the pressure of the cooling water in the cooling water path of the fan 13, receives the temperature and the pressure of the cooling water which is actually collected by the third sensor 16 and flows out of the intercooler 14, and adjusts the rotating speed of the second water pump 15 in real time, so that the pressure of the cooling water in the cooling water path of the fan 13 is accurately controlled; the controller 17 adjusts the rotation speed of the radiator 11 to control the cooling water temperature of the cooling water path of the fan 13 and receives the actual temperature of the cooling water collected by the third sensor 16, and adjusts the rotation speed of the radiator 11 in real time, thereby accurately controlling the temperature of the cooling water path of the fan 13. The internal pipeline of the radiator 11 is isolated, that is, the cooling circulation water path and the cooling water path of the fan 13 are isolated in the radiator 11, and the two paths do not converge together, so that the conductivity of the cooling water in the cooling circulation water path can be kept at a lower level for a longer time, and the service life of the fuel cell is prolonged.
The above-mentioned embodiments are merely preferred embodiments for fully illustrating the present invention, and the scope of the present invention is not limited thereto. Equivalent substitutes or changes made by the technical personnel in the technical field on the basis of the utility model are all within the protection scope of the utility model. The protection scope of the present invention is subject to the claims.
Claims (9)
1. A fuel cell temperature control integrated system is characterized by comprising a cooling circulation water path for cooling a fuel cell stack and a fan cooling water path for cooling a fan, wherein the cooling circulation water path comprises a small circulation water path and a large circulation water path, the small circulation water path and the large circulation water path share the same part, the shared part of the water path is arranged in the cell stack, the other part of the small circulation water path is connected with a heater, the other part of the large circulation water path is connected with a radiator, a selector valve is connected between the small circulation water path and the large circulation water path and controls the small circulation water path or the large circulation water path to be conducted, the fan cooling water path is arranged in the fan, the other part of the fan cooling water path is connected with the radiator, and the fan cooling water path and the large circulation water path are separately arranged in the radiator, and the selector valve, the heater and the radiator are all connected with the controller.
2. The integrated fuel cell temperature control system according to claim 1, wherein a first sensor is disposed at an end of the shared water path entering the stack, a second sensor is disposed at an end of the shared water path exiting the stack, a first water pump is disposed on the shared water path between the first sensor and the second sensor, the first sensor and the second sensor are configured to detect temperature and pressure of the water path, and the first sensor, the second sensor and the first water pump are all connected to the controller.
3. The integrated fuel cell temperature control system according to claim 1, wherein a filter is further connected to the common water path, and the filter is disposed at one end of the common water path entering the cell stack.
4. The integrated fuel cell temperature control system according to claim 1, wherein a proportional valve and a flow meter are connected to the common water path, the proportional valve and the flow meter are sequentially connected to one end of the common water path, which enters the cell stack, and the proportional valve and the flow meter are both connected to the controller.
5. The integrated fuel cell temperature control system according to claim 1, wherein the fan cooling water path is further connected to a fan controller and a intercooler, the fan cooling water path is driven to circulate by a second water pump, and the second water pump is connected to the controller.
6. The integrated fuel cell temperature control system of claim 5, wherein the fan controller is electrically connected to the fan and the controller, respectively.
7. The integrated fuel cell temperature control system according to claim 1, wherein a third sensor is connected to the fan cooling water path, and the third sensor is connected to the controller.
8. The integrated fuel cell temperature control system of claim 1, wherein the selector valve comprises a first solenoid valve in series with the heater and a second solenoid valve in series with the radiator, the first solenoid valve and the second solenoid valve being connected to the controller.
9. The integrated fuel cell temperature control system of claim 1, wherein the heat sink is a heat dissipation fan.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020788953.XU CN212485375U (en) | 2020-05-13 | 2020-05-13 | Fuel cell temperature control integrated system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020788953.XU CN212485375U (en) | 2020-05-13 | 2020-05-13 | Fuel cell temperature control integrated system |
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| CN212485375U true CN212485375U (en) | 2021-02-05 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113346112A (en) * | 2021-05-28 | 2021-09-03 | 黄冈格罗夫氢能汽车有限公司 | High-power parallel fuel cell heat dissipation system and control method |
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2020
- 2020-05-13 CN CN202020788953.XU patent/CN212485375U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113346112A (en) * | 2021-05-28 | 2021-09-03 | 黄冈格罗夫氢能汽车有限公司 | High-power parallel fuel cell heat dissipation system and control method |
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