CN211376821U - Fuel cell waterway system - Google Patents
Fuel cell waterway system Download PDFInfo
- Publication number
- CN211376821U CN211376821U CN202020417800.4U CN202020417800U CN211376821U CN 211376821 U CN211376821 U CN 211376821U CN 202020417800 U CN202020417800 U CN 202020417800U CN 211376821 U CN211376821 U CN 211376821U
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- CN
- China
- Prior art keywords
- fuel cell
- water pump
- cooling water
- cell stack
- thermostat
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- Expired - Fee Related
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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 fuel cell waterway system belongs to the technical field of fuel cells. The method is characterized in that: two ends of the cooling water pump (8) are connected with the deionizer (7) and the heater (9) in parallel; a thermostat (5) is arranged between the overflow tank (1) and the cooling water pump (8); an external heating loop is additionally arranged between a cooling liquid outlet of the fuel cell stack (10) and an inlet end of a cooling water pump (8), the cooling liquid outlet of the fuel cell stack (10) is divided into three paths which are respectively connected with a radiator (2), a thermostat (5) and the external heating loop, and a temperature sensor (11) is arranged at an inlet of the fuel cell stack (10). The utility model discloses add external heating return circuit, form the heating microcirculation in the fuel cell pile outside, the integrated level is high, and the coolant liquid capacity is less relatively, and the programming rate is fast. Thereby achieving the self-heating stable region of the fuel cell and improving the starting speed of the fuel cell.
Description
Technical Field
A fuel cell waterway system belongs to the technical field of fuel cells.
Background
The fuel cell cooling module ensures that the temperature of each part inside the fuel cell stack is always in a higher value of MEA (membrane electrode assembly) reaction activity under different working conditions by ensuring that the fuel cell stack is in a proper temperature range in the working process of the stack. The cold start of the fuel cell is a working condition encountered when the fuel cell runs in winter and is one of relatively severe running conditions of a fuel cell system, so that whether the fuel cell can be successfully and rapidly started is an important index for evaluating the comprehensive evaluation of the fuel cell system. At the present stage, due to the fact that a fuel cell cooling system is not properly designed, design thinking is limited, liquid to be heated of a fuel cell cooling loop is too much in winter, and cases that cold starting time is too long or failure occurs occasionally, so that the whole cold starting process is complex and resources are wasted.
Disclosure of Invention
The utility model discloses the technical problem that will solve is: the defects of the prior art are overcome, and the fuel cell waterway system has the advantages of relatively small cooling liquid capacity, high temperature rising speed, improvement of the starting speed of the fuel cell and full utilization of waste heat.
The utility model provides a technical scheme that its technical problem adopted is: this fuel cell waterway system, including overflow jar, radiator, deionizer, cooling water pump and heater, its characterized in that: the water overflow tank, the cooling water pump, the fuel cell stack and the radiator are sequentially connected to form an inner loop, and two ends of the cooling water pump are connected with the deionizer and the heater in parallel; a thermostat is arranged between the overflow tank and the cooling water pump; an external heating loop is additionally arranged between a cooling liquid outlet of the fuel cell stack and an inlet end of a cooling water pump, the cooling liquid outlet of the fuel cell stack is divided into three paths which are respectively connected with a radiator, a thermostat and the external heating loop, and a temperature sensor is arranged at the inlet of the fuel cell stack.
The utility model discloses change traditional cooling water route, for guaranteeing its fuel cell system quick start in low temperature environment, add external heating return circuit, form the heating microcirculation in the fuel cell pile outside, its characteristics lie in, at first, the integrated level is high, and the coolant liquid capacity is less relatively, and the programming rate is fast. And the control of cooperation thermostat can accomplish when the pile slowly heaies up, and its minimum outer loop can rapid heating up, and the temperature of entering water inlet department can be judged through pile entry temperature sensor's response, opens the thermostat and can squeeze into the fuel cell pile fast with the coolant liquid after the heater heating, helps fuel cell rapid heating up to reach fuel cell self-heating stable area, improve fuel cell start-up speed.
And moreover, the waste heat after the reaction of the fuel cell is fully utilized, the external heating loop is disconnected at the stage that the cold start of the fuel cell needs to be rapidly heated, the connection between the thermostat and the internal loop is closed, and the heater only heats the cooling liquid in the minimum external loop of the fuel cell to rapidly raise the temperature of the fuel cell stack. When the temperature of the fuel cell stack reaches the stable temperature, the connection of the external heating loop can be opened, and hot water in the main path of the fuel cell is introduced into the external heating loop by utilizing water flow formed by the pressure difference between the front and the back of the system cooling water pump, so that an additional water pump is not needed, the cost is saved, and waste heat is utilized.
The external heating loop comprises a switch valve and a warm air core body which are connected in series, the inlet end of the warm air core body is connected with a cooling liquid outlet of the fuel cell stack through the switch valve, and the outlet end of the warm air core body is connected with the inlet end of a cooling water pump.
The inlet of the deionizer heater is connected with the outlet of the cooling water pump, and the outlet of the heater is connected with the inlet end of the cooling water pump through the deionizer.
The outlet of the radiator is divided into two paths, one path is connected with the water overflow tank, and the other path is connected with the pipeline between the water overflow tank and the thermostat.
And a heat radiation fan is arranged on one side of the heat radiator.
Compared with the prior art, the utility model discloses the beneficial effect who has is:
the utility model discloses change traditional cooling water route, for guaranteeing its fuel cell system quick start in low temperature environment, add external heating return circuit, form the heating microcirculation in the fuel cell pile outside, its characteristics lie in, at first, the integrated level is high, and the coolant liquid capacity is less relatively, and the programming rate is fast. And the control of cooperation thermostat can accomplish when the pile slowly heaies up, and its minimum outer loop can rapid heating up, and the temperature of entering water inlet department can be judged through pile entry temperature sensor's response, opens the thermostat and can squeeze into the fuel cell pile fast with the coolant liquid after the heater heating, helps fuel cell rapid heating up to reach fuel cell self-heating stable area, improve fuel cell start-up speed.
And moreover, the waste heat after the reaction of the fuel cell is fully utilized, the external heating loop is disconnected at the stage that the cold start of the fuel cell needs to be rapidly heated, the connection between the thermostat and the internal loop is closed, and the heater only heats the cooling liquid in the minimum external loop of the fuel cell to rapidly raise the temperature of the fuel cell stack. When the temperature of the fuel cell stack reaches the stable temperature, the connection of the external heating loop can be opened, and hot water in the main path of the fuel cell is introduced into the external heating loop by utilizing water flow formed by the pressure difference between the front and the back of the system cooling water pump, so that an additional water pump is not needed, the cost is saved, and waste heat is utilized.
Drawings
Fig. 1 is a schematic structural diagram of a fuel cell water circuit system.
The device comprises a water tank 1, an overflow tank 2, a radiator 3, a heat radiation fan 4, a switch valve 5, a thermostat 6, a warm air core 7, a deionizer 8, a cooling water pump 9, a heater 10, a fuel cell stack 11 and a temperature sensor.
Detailed Description
Fig. 1 is a preferred embodiment of the present invention, and the present invention will be further explained with reference to fig. 1.
Referring to figure 1: a fuel cell waterway system comprises an overflow tank 1, a radiator 2, a deionizer 7, a cooling water pump 8 and a heater 9, wherein the overflow tank 1, the cooling water pump 8, a fuel cell stack 10 and the radiator 2 are sequentially connected to form an inner loop, and the deionizer 7 and the heater 9 are connected in parallel at two ends of the cooling water pump 8; a thermostat 5 is arranged between the overflow tank 1 and the cooling water pump 8; an external heating loop is additionally arranged between a cooling liquid outlet of the fuel cell stack 10 and an inlet end of the cooling water pump 8, the cooling liquid outlet of the fuel cell stack 10 is divided into three paths which are respectively connected with the radiator 2, the thermostat 5 and the external heating loop, and a temperature sensor 11 is arranged at the inlet of the fuel cell stack 10.
The external heating loop comprises a switch valve 4 and a warm air core body 6 which are connected in series, the inlet end of the warm air core body 6 is connected with a cooling liquid outlet of the fuel cell stack 10 through the switch valve 4, and the outlet end of the warm air core body 6 is connected with the inlet end of a cooling water pump 8. The outlet of the radiator 2 is divided into two paths, one path is connected with the overflow tank 1, and the other path is connected with a pipeline between the overflow tank 1 and the thermostat 5. A heat radiation fan 3 is arranged on one side of the heat radiator 2. The inlet of the heater 9 is connected with the outlet of the cooling water pump 8, and the outlet of the heater 9 is connected with the inlet end of the cooling water pump 8 through the deionizer 7.
The utility model discloses at the during operation, for guaranteeing its fuel cell pile 10 quick start in low temperature environment, add outer heating circuit, form the heating microcirculation, should heat the characteristics of microcirculation and lie in: the integration level is high, the cooling liquid capacity is relatively small, and the temperature rise speed is high. Simultaneously, the control of cooperation thermostat 5, can accomplish when fuel cell pile 10 slowly heaies up, its minimum outer loop can rapid heating up, the temperature of water inlet department can be judged in the response of the temperature sensor 11 of fuel cell pile 10 entrance, open thermostat 5, can be with after the coolant liquid after the heater 9 heating passes through deionizer 7, squeeze into fuel cell pile 10 by cooling water pump 8 fast again, help fuel cell rapid heating up, thereby reach fuel cell self-heating stable area, improve fuel cell start-up speed.
Furthermore, the utility model discloses still the waste heat after the make full use of fuel cell reaction can utilize the break-make of ooff valve 4, forms different control mechanisms, and in the stage that fuel cell cold start needs rapid heating up, close ooff valve 4, the coolant liquid in the minimum outer loop of heater 9 only heating fuel cell risees the temperature of fuel cell stack fast. When the temperature of the fuel cell stack reaches a stable value, the switch valve 4 can be opened, the water flow is formed by utilizing the front and back pressure difference of the main water pump of the system, namely the cooling water pump 8, and the hot water in the main path of the fuel cell is introduced into the external heating loop, so that an additional water pump is not needed, the cost is saved, and the waste heat is utilized.
When the fuel cell stack 10 is cold started, the on-off of the switch valve 4 and the newly-added heating mode of the external heating loop are controlled, so that the fuel cell can quickly reach the appropriate operating temperature, and the fuel cell system can be quickly, stably and effectively started. The utility model discloses especially in winter, the used heat heating HVAC air conditioning system that usable fuel cell produced to thereby utilize ingenious design method to reduce auxiliary water pump lowering system cost.
While the invention has been described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention. However, any simple modification, equivalent change and modification made to the above embodiments according to the technical substance of the present invention still belong to the protection scope of the technical solution of the present invention.
Claims (5)
1. The utility model provides a fuel cell waterway system, includes overflow jar (1), radiator (2), deionizer (7), cooling water pump (8) and heater (9), its characterized in that: the overflow tank (1), the cooling water pump (8), the fuel cell stack (10) and the radiator (2) are sequentially connected to form an inner loop, and two ends of the cooling water pump (8) are connected with the deionizer (7) and the heater (9) in parallel; a thermostat (5) is arranged between the overflow tank (1) and the cooling water pump (8); an external heating loop is additionally arranged between a cooling liquid outlet of the fuel cell stack (10) and an inlet end of a cooling water pump (8), the cooling liquid outlet of the fuel cell stack (10) is divided into three paths which are respectively connected with a radiator (2), a thermostat (5) and the external heating loop, and a temperature sensor (11) is arranged at an inlet of the fuel cell stack (10).
2. The fuel cell waterway system of claim 1, wherein: the external heating loop comprises a switch valve (4) and a warm air core body (6) which are connected in series, the inlet end of the warm air core body (6) is connected with a cooling liquid outlet of the fuel cell stack (10) through the switch valve (4), and the outlet end of the warm air core body (6) is connected with the inlet end of a cooling water pump (8).
3. The fuel cell waterway system of claim 1, wherein: the inlet of a heater (9) of the deionizer (7) is connected with the outlet of the cooling water pump (8), and the outlet of the heater (9) is connected with the inlet end of the cooling water pump (8) through the deionizer (7).
4. The fuel cell waterway system of claim 1, wherein: the outlet of the radiator (2) is divided into two paths, one path is connected with the overflow tank (1), and the other path is connected with a pipeline between the overflow tank (1) and the thermostat (5).
5. The fuel cell waterway system of claim 1, wherein: and a heat radiation fan (3) is arranged on one side of the heat radiator (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020417800.4U CN211376821U (en) | 2020-03-27 | 2020-03-27 | Fuel cell waterway system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020417800.4U CN211376821U (en) | 2020-03-27 | 2020-03-27 | Fuel cell waterway system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211376821U true CN211376821U (en) | 2020-08-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020417800.4U Expired - Fee Related CN211376821U (en) | 2020-03-27 | 2020-03-27 | Fuel cell waterway system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211376821U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115036532A (en) * | 2022-06-07 | 2022-09-09 | 金华氢途科技有限公司 | Quick-response vehicle-mounted fuel cell heat management loop and control system |
-
2020
- 2020-03-27 CN CN202020417800.4U patent/CN211376821U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115036532A (en) * | 2022-06-07 | 2022-09-09 | 金华氢途科技有限公司 | Quick-response vehicle-mounted fuel cell heat management loop and control system |
| CN115036532B (en) * | 2022-06-07 | 2023-10-27 | 金华氢途科技有限公司 | Control system of vehicle-mounted fuel cell thermal management loop with quick response |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200828 |
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| CF01 | Termination of patent right due to non-payment of annual fee |