CN114883608A - Single-chip waterway temperature control system of fuel cell stack - Google Patents
Single-chip waterway temperature control system of fuel cell stack Download PDFInfo
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- CN114883608A CN114883608A CN202210106153.9A CN202210106153A CN114883608A CN 114883608 A CN114883608 A CN 114883608A CN 202210106153 A CN202210106153 A CN 202210106153A CN 114883608 A CN114883608 A CN 114883608A
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M8/00—Fuel cells; Manufacture thereof
- H01M8/04—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids
- H01M8/04291—Arrangements for managing water in solid electrolyte fuel cell systems
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M8/00—Fuel cells; Manufacture thereof
- H01M8/04—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids
- H01M8/04007—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids related to heat exchange
- H01M8/04029—Heat exchange using liquids
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M8/00—Fuel cells; Manufacture thereof
- H01M8/04—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids
- H01M8/04007—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids related to heat exchange
- H01M8/04037—Electrical heating
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M8/00—Fuel cells; Manufacture thereof
- H01M8/04—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids
- H01M8/04298—Processes for controlling fuel cells or fuel cell systems
- H01M8/04694—Processes for controlling fuel cells or fuel cell systems characterised by variables to be controlled
- H01M8/04701—Temperature
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M8/00—Fuel cells; Manufacture thereof
- H01M8/04—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids
- H01M8/04298—Processes for controlling fuel cells or fuel cell systems
- H01M8/04694—Processes for controlling fuel cells or fuel cell systems characterised by variables to be controlled
- H01M8/04746—Pressure; Flow
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M8/00—Fuel cells; Manufacture thereof
- H01M8/04—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids
- H01M8/04298—Processes for controlling fuel cells or fuel cell systems
- H01M8/04694—Processes for controlling fuel cells or fuel cell systems characterised by variables to be controlled
- H01M8/04746—Pressure; Flow
- H01M8/04768—Pressure; Flow of the coolant
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M2250/00—Fuel cells for particular applications; Specific features of fuel cell system
- H01M2250/20—Fuel cells in motive systems, e.g. vehicle, ship, plane
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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
Abstract
The invention relates to a single-chip waterway temperature control system of a fuel cell stack, which comprises a galvanic pile, a water tank, a circulating waterway and a bypass pipe, wherein the circulating waterway comprises a water inlet pipe and a water outlet pipe; the water in the water tank flows into the galvanic pile through the water inlet pipe and then flows back to the water tank through the water outlet pipe, the two ends of the bypass pipe are respectively communicated with the water inlet pipe and the water outlet pipe, and when the bypass needle valve is opened, the water in the water inlet pipe flows into the water outlet pipe through the bypass pipe and flows back to the water tank. Compared with the prior art, the invention adds the bypass pipe in the main path, the bypass needle valve is arranged on the bypass pipe, the water flow entering the electric pile can be ensured to be smaller, the temperature transfer performance is good, the temperature control precision is greatly improved, and the temperature fluctuation is small.
Description
Technical Field
The invention relates to the technical field of fuel cell testing, in particular to a single-chip waterway temperature control system of a fuel cell stack.
Background
A fuel cell is an electrochemical device that directly converts stored chemical energy into electrical energy, thermal energy, and water through a reaction. As a new green power source, a fuel cell engine is becoming one of the important research and development points of vehicle-mounted engines due to its excellent characteristics such as high efficiency and low emission. The fuel cell engine is based on the output of a load, and has good controllability for the whole vehicle; meanwhile, the energy output of the fuel cell engine is electric energy, and the transmission and speed regulation structure of the traditional automobile is simplified. Although fuel cell engines have many advantages over internal combustion engines, fuel cell engines are the mainstream of automotive engines to replace internal combustion engines, and many problems need to be solved.
When a low-power fuel cell stack or a single chip is tested, the overall flow of a waterway loop is small, generally 0.1-1LPM, in order to ensure the temperature difference of an inlet and an outlet of the fuel cell stack, and when the flow is small, the overall temperature control precision is poor due to the small flow, the slow flow speed and the poor temperature transfer performance of the whole loop of the testing equipment, and the temperature fluctuation is large when the flow is changed, so that the testing result is influenced.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provide a single-chip waterway temperature control system of a fuel cell stack.
The purpose of the invention can be realized by the following technical scheme:
a single-chip water path temperature control system of a fuel cell stack comprises a stack, a water tank, a circulating water path and a bypass pipe, wherein the circulating water path comprises a water inlet pipe and a water outlet pipe, a water pump, a temperature control module, a liquid level monitoring module, a water replenishing module, a water draining module and a pressure regulating module are arranged in the water tank and the circulating water path, and a bypass needle valve is arranged on the bypass pipe;
the water in the water tank passes through inlet tube inflow pile, the rethread go out water pipe flow return water tank, the both ends of bypass pipe communicate inlet tube and outlet pipe respectively, and when the bypass needle valve was opened, the water in the inlet tube passed through bypass pipe inflow outlet pipe and flow back water tank, the flow of bypass control pipe of bypass needle valve, the flow distribution that flows in bypass pipe and pile can be adjusted to the control bypass needle valve.
Furthermore, the temperature control module comprises a heater and a plate heat exchanger, the heater is a heating rod, used for heating up a water path, the plate heat exchanger is used for cooling down the water path, the heater is arranged in the water tank, a first temperature sensor is arranged in the water tank, the power of the heater can be controlled to accurately adjust the temperature rise, the plate heat exchanger is arranged on the water inlet pipe, the bypass pipe is connected to the hot side outlet of the plate heat exchanger, the cold side of the plate heat exchanger is provided with a cooling water flow proportional valve, the cooling water flow of the cold side of the plate heat exchanger can be accurately adjusted through the cooling water flow proportional valve, therefore, the cooling amount of the plate heat exchanger is accurately controlled, a second temperature sensor is arranged between a hot side outlet of the plate heat exchanger and the bypass pipe, a third temperature sensor is arranged between the bypass pipe and the electric pile inlet, and a fourth temperature sensor is arranged between the bypass pipe and the electric pile outlet.
The first temperature sensor is a thermal resistance temperature sensor and is used for detecting water temperature in the water tank, the second temperature sensor is used for detecting water temperature at the outlet of the hot side of the plate heat exchanger, and the third temperature sensor and the fourth temperature sensor are respectively used for detecting water temperature at the inlet and the outlet of the galvanic pile.
Further, the water pump sets up between water tank and plate heat exchanger, can roughly regulate and control the flow in circulation water route through water pump power adjustment, still is equipped with main road filter and main road flow proportional valve between water pump and the plate heat exchanger, and main road filter further filters impurity, and main road flow proportional valve can the accurate control flow in circulation water route.
Furthermore, the liquid level monitoring module comprises a plurality of liquid level sensors which are respectively arranged at different height positions of the water tank and used for monitoring the height of the water level in the water tank.
Furthermore, the number of the liquid level sensors is three, the liquid level sensors are respectively a low liquid level sensor, a medium liquid level sensor and a high liquid level sensor, and the liquid level sensors are arranged in the water tank from low to high.
Further, the moisturizing module is including the water supply, be equipped with the ball valve on the pipeline between water supply and the water tank in proper order, the entry filter, the relief pressure valve, entry pressure sensor and entry solenoid valve, the water supply provides deionized water, the ball valve is manual switch, break-make between water supply and the water tank can manual control advance, the entry filter is used for filtering the impurity of aquatic, the relief pressure valve is used for controlling the pressure of intaking of water tank, entry pressure sensor is used for detecting the pressure of intaking that the water tank enters the mouth, the entry solenoid valve is by software electric control, can automatic switching, the break-make between water supply and the water tank is advanced in the control.
Furthermore, the drainage module comprises a tail row, the tail row is connected with the water tank through two parallel branches, two branches are respectively provided with a drainage electromagnetic valve and a drainage ball valve, automatic control can be performed through the drainage electromagnetic valve to drain water, and manual control can be performed through the drainage ball valve to drain water.
Further, the pressure regulating module comprises a gas supply source, the gas supply source is introduced into the upper part of the water tank through a pipeline, an electric proportional valve and a pressure regulating valve are arranged on the pipeline, a safety valve is installed on the water tank, the gas supply source can provide inert gases such as nitrogen, pressure is controlled through the electric proportional valve and the pressure regulating valve, accordingly, the pressure of the whole loop is controlled, and the safety valve is used for achieving overpressure protection.
Furthermore, a flow meter and a first pressure sensor are arranged between the bypass pipe and the inlet of the galvanic pile, a second pressure sensor is arranged between the bypass pipe and the outlet of the galvanic pile, the flow meter detects the water flow entering the galvanic pile, and the first pressure sensor and the second pressure sensor respectively detect the pressure at the inlet and the outlet of the galvanic pile.
Furthermore, a conductivity transmitter is arranged in the circulating water path and used for detecting the conductivity of the whole loop, and the conductivity can be reduced through water replenishing and draining when the conductivity is too high.
Compared with the prior art, the invention has the following beneficial effects:
(1) the bypass pipe is added in the large-flow main loop, so that the water flow entering the galvanic pile can be ensured to be smaller, the temperature transfer performance is good, the temperature control precision is greatly improved, and the temperature fluctuation is small.
(2) The water level in the water tank is monitored through the liquid level monitoring module, water is drained and supplemented through the water supplementing module and the water draining module, and the water quantity in the water tank is guaranteed to be within a proper range.
(3) The accurate temperature control of the loop is realized through the heater, the plate heat exchanger and the plurality of temperature sensors, the accurate pressure control is realized through the pressure regulating module and the plurality of pressure sensors, the main path flow can be controlled through the water pump and the main path flow proportional valve, the water flow entering the electric pile can be accurately controlled through controlling the bypass needle valve, and the control precision is high.
Drawings
FIG. 1 is a schematic structural view of the present invention;
reference numeral, 1, a ball valve, 2, an inlet filter, 3, a pressure reducing valve, 4, an inlet pressure sensor, 5, an inlet electromagnetic valve, 6, a water tank, 7, a heater, 8, a first temperature sensor, 9, a low liquid level sensor, 10, a middle liquid level sensor, 11, a high liquid level sensor, 12, an electric proportional valve, 13, a pressure regulating valve, 14, a conductivity transmitter, 15, a water pump, 16, a main path flow proportional valve, 17, a main path filter, 18, a plate heat exchanger, 19, a cooling water flow proportional valve, 20, a second temperature sensor, 21, a flow meter, 22, a first pressure sensor, 23, a third temperature sensor, 24, a fourth temperature sensor, 25, a second pressure sensor, 26, a safety valve, 27, a drainage electromagnetic valve, 28, a drainage ball valve, 29, a bypass needle valve, 30 and an electric pile.
Detailed Description
The invention is described in detail below with reference to the figures and specific embodiments. The present embodiment is implemented on the premise of the technical solution of the present invention, and a detailed implementation manner and a specific operation process are given, but the scope of the present invention is not limited to the following embodiments.
In the drawings, structurally identical elements are represented by like reference numerals, and structurally or functionally similar elements are represented by like reference numerals throughout the several views. The size and thickness of each component shown in the drawings are arbitrarily illustrated, and the present invention is not limited to the size and thickness of each component. Parts are exaggerated in the drawing where appropriate for clarity of illustration.
Example 1:
a fuel cell stack single-chip waterway temperature control system comprises a galvanic pile 30, a water tank 6, a circulating waterway and a bypass pipe, wherein the galvanic pile 30 is a tested piece, the circulating waterway comprises a water inlet pipe and a water outlet pipe, a water pump 15, a temperature control module, a liquid level monitoring module, a water supplementing module, a water discharging module and a pressure regulating module are arranged in the water tank 6 and the circulating waterway, and a bypass needle valve 29 is arranged on the bypass pipe;
water in the water tank 6 flows into the galvanic pile 30 through the water inlet pipe and then flows back to the water tank 6 through the water outlet pipe, two ends of the bypass pipe are respectively communicated with the water inlet pipe and the water outlet pipe, when the bypass needle valve 29 is opened, the water in the water inlet pipe flows into the water outlet pipe through the bypass pipe and flows back to the water tank 6, the flow of the bypass pipe is controlled by the opening degree of the bypass needle valve 29, and the flow distribution flowing into the bypass pipe and the galvanic pile 30 can be adjusted by controlling the bypass needle valve 29.
When a low-power fuel cell stack or a single chip is tested, the overall flow is small, generally 0.1-1LPM, in order to ensure the temperature difference of the inlet and the outlet of the fuel cell stack, and when the flow of the overall loop of the testing equipment is small, the flow rate is slow, the temperature transfer performance is poor, so that the overall temperature control precision is poor and the temperature fluctuation is large when the flow is changed. The invention designs a large-flow circulating water path, and adds a bypass pipe which is provided with a bypass needle valve 29, which is the key improvement point of the invention, the large-flow circulating water path can realize accurate and stable regulation and control of temperature, and the bypass pipe can lead small part of water in the large-flow circulating water path to flow through the electric pile 30, so that the electric pile 30 still carries out test by a small-flow loop, and simultaneously, the small-flow requirement of single-chip battery test, the accurate temperature control and the temperature fluctuation requirement are met.
The moisturizing module includes the water supply, be equipped with ball valve 1 on the pipeline between water supply and the water tank 6 in proper order, entry filter 2, relief pressure valve 3, entry pressure sensor 4 and entry solenoid valve 5, water tank 6 about 5L, the water supply provides deionized water, ball valve 1 is manual switch, break-make between water supply and the water tank 6 can manual control, entry filter 2 is used for filtering the impurity of aquatic, relief pressure valve 3 is used for controlling the pressure of intaking of water tank 6, entry pressure sensor 4 is used for detecting the pressure of intaking of 6 entrys of water tank, entry solenoid valve 5 is by software electric control, can automatic switching, control break-make between water supply and the water tank 6.
The liquid level monitoring module comprises a plurality of liquid level sensors which are respectively arranged at different height positions of the water tank 6 and used for monitoring the height of the water level in the water tank 6. In this embodiment, the number of the liquid level sensors is three, and the liquid level sensors are respectively a low liquid level sensor 9, a medium liquid level sensor 10 and a high liquid level sensor 11, and are installed in the water tank 6 from low to high.
The pressure regulating module comprises a gas supply source, the gas supply source is introduced into the upper part of the water tank 6 through a pipeline, an electric proportional valve 12 and a pressure regulating valve 13 are arranged on the pipeline, a safety valve 26 is installed on the water tank 6, the gas supply source can provide inert gases such as nitrogen, pressure is controlled through the electric proportional valve 12 and the pressure regulating valve 13, accordingly, the pressure of the whole loop is controlled, and the safety valve 26 is used for achieving overpressure protection.
And a conductivity transmitter 14 is arranged in the circulating water path and used for detecting the conductivity of the whole loop, and when the conductivity is too high, the conductivity can be reduced by water replenishing and draining.
The temperature control module comprises a heater 7 and a plate heat exchanger 18, the heater 7 is a heating rod and is used for heating a water path, the plate heat exchanger 18 is used for cooling the water path, the heater 7 is arranged in the water tank 6, a first temperature sensor 8 is arranged in the water tank 6, the power of the heater 7 can be controlled to accurately adjust the temperature rise, the plate heat exchanger 18 is arranged on the water inlet pipe, the bypass pipe is connected to the hot side outlet of the plate heat exchanger 18, the cold side of the plate heat exchanger 18 is provided with a cooling water flow proportional valve 19, the cooling water flow on the cold side of the plate heat exchanger 18 can be accurately adjusted by means of the cooling water flow proportional valve 19, therefore, the cooling amount of the plate type heat exchanger 18 is accurately controlled, a second temperature sensor 20 is arranged between the outlet of the hot side of the plate type heat exchanger 18 and the bypass pipe, a third temperature sensor 23 is arranged between the bypass pipe and the inlet of the electric pile 30, and a fourth temperature sensor 24 is arranged between the bypass pipe and the outlet of the electric pile 30.
The first temperature sensor 8 is a thermal resistance temperature sensor and is used for detecting the water temperature in the water tank 6, the second temperature sensor 20 is used for detecting the water temperature at the outlet of the hot side of the plate heat exchanger 18, and the third temperature sensor 23 and the fourth temperature sensor 24 are respectively used for detecting the water temperature at the inlet and the outlet of the electric pile 30.
The water pump 15 is arranged between the water tank 6 and the plate type heat exchanger 18, the flow of the circulating water path can be roughly regulated and controlled through power regulation of the water pump 15, a main path filter 17 and a main path flow proportional valve 16 are further arranged between the water pump 15 and the plate type heat exchanger 18, impurities are further filtered by the main path filter 17, and the main path flow proportional valve 16 can accurately control the flow of the circulating water path.
A flow meter 21 and a first pressure sensor 22 are arranged between the bypass pipe and the inlet of the galvanic pile 30, a second pressure sensor 25 is arranged between the bypass pipe and the outlet of the galvanic pile 30, the flow meter 21 detects the water flow entering the galvanic pile 30, and the first pressure sensor 22 and the second pressure sensor 25 respectively detect the inlet pressure and the outlet pressure of the galvanic pile 30.
The drainage module comprises a tail row, the tail row is connected with the water tank 6 through two parallel branches, two branches are respectively provided with a drainage electromagnetic valve 27 and a drainage ball valve 28, automatic control can be performed through the drainage electromagnetic valve 27 to drain water, and manual control can be performed through the drainage ball valve 28 to drain water.
The working process of the invention is as follows:
by moisturizing module to moisturizing in water tank 6 and the circulation water route, by the water discharge in drainage module with water tank 6 and the circulation water route, the pressure in the whole return circuit of pressure regulating module control, liquid level monitoring module real-time supervision water level, when the liquid level when too high (high level sensor 11 detects there is water), the automatic drainage of opening of drainage solenoid valve, when the liquid level is lower (well level sensor 10 detects not water), it carries out the moisturizing to open the entry solenoid valve, when the liquid level crosses lowly (low level sensor 9 detects not water), it carries out the moisturizing to open the entry solenoid valve, entire system can't start simultaneously, the stop test.
The heater 7 is used for initially raising the temperature, raising the temperature of the water in the water tank 6 and the circulating water channel to reach the running temperature of the integral electric pile 30, the first temperature sensor 8 (thermal resistance temperature sensor) is used for detecting the temperature in the water tank 6 and carrying out temperature compensation, and the plate heat exchanger 18 and the cooling water flow proportional valve 19 are used for accurately lowering the temperature of the integral loop.
The combination of the water pump 15, the main path flow proportional valve 16 and the bypass needle valve 29 accurately controls the water flow entering the electric pile 30, a loop between the water tank 6 and the bypass pipe is used as a main path, the main path flow can be controlled to be far larger than the flow of the feed water pile by adjusting the opening degree of the bypass needle valve 29, the main path flow is improved (the main path flow can be improved by 4-5 times by design), the whole temperature transfer can be greatly improved, and the accuracy of temperature control is ensured.
The foregoing detailed description of the preferred embodiments of the invention has been presented. It should be understood that numerous modifications and variations could be devised by those skilled in the art in light of the present teachings without departing from the inventive concepts. Therefore, the technical solutions available to those skilled in the art through logic analysis, reasoning and limited experiments based on the prior art according to the concept of the present invention should be within the scope of protection defined by the claims.
Claims (10)
1. A single-chip water path temperature control system of a fuel cell stack is characterized by comprising a stack, a water tank, a circulating water path and a bypass pipe, wherein the circulating water path comprises a water inlet pipe and a water outlet pipe, a water pump, a temperature control module, a liquid level monitoring module, a water supplementing module, a water discharging module and a pressure regulating module are arranged in the water tank and the circulating water path, and a bypass needle valve is arranged on the bypass pipe;
the water in the water tank flows into the galvanic pile through the water inlet pipe and then flows back to the water tank through the water outlet pipe, the two ends of the bypass pipe are respectively communicated with the water inlet pipe and the water outlet pipe, and when the bypass needle valve is opened, the water in the water inlet pipe flows into the water outlet pipe through the bypass pipe and flows back to the water tank.
2. The single water path temperature control system of the fuel cell stack according to claim 1, wherein the temperature control module comprises a heater and a plate heat exchanger, the heater is arranged in the water tank, a first temperature sensor is arranged in the water tank, the plate heat exchanger is arranged on the water inlet pipe, the bypass pipe is connected to a hot side outlet of the plate heat exchanger, a cooling water flow proportional valve is arranged on a cold side of the plate heat exchanger, a second temperature sensor is arranged between the hot side outlet of the plate heat exchanger and the bypass pipe, a third temperature sensor is arranged between the bypass pipe and the electric stack inlet, and a fourth temperature sensor is arranged between the bypass pipe and the electric stack outlet.
3. The single-chip waterway temperature control system of the fuel cell stack of claim 2, wherein the water pump is arranged between the water tank and the plate heat exchanger, and a main path filter and a main path flow proportional valve are further arranged between the water pump and the plate heat exchanger.
4. The single-chip waterway temperature control system of the fuel cell stack of claim 1, wherein the liquid level monitoring module comprises a plurality of liquid level sensors respectively disposed at different height positions of the water tank for monitoring the height of the water level in the water tank.
5. The single-chip waterway temperature control system of claim 4, wherein the number of the liquid level sensors is three, and the liquid level sensors are respectively a low liquid level sensor, a medium liquid level sensor and a high liquid level sensor, and are arranged in the water tank from low to high.
6. The single-chip waterway temperature control system of the fuel cell stack of claim 1, wherein the water replenishing module comprises a water inlet source, and a pipeline between the water inlet source and the water tank is sequentially provided with a ball valve, an inlet filter, a pressure reducing valve, an inlet pressure sensor and an inlet electromagnetic valve.
7. The single-chip waterway temperature control system of the fuel cell stack of claim 1, wherein the drain module comprises a tail row, the tail row is connected with the water tank through two parallel branches, and a drain solenoid valve and a drain ball valve are respectively arranged on the two branches.
8. The single-chip waterway temperature control system of claim 1, wherein the pressure regulating module comprises an air supply source, the air supply source is introduced into the upper part of the water tank through a pipeline, the pipeline is provided with an electric proportional valve and a pressure regulating valve, and the water tank is provided with a safety valve.
9. The single-chip waterway temperature control system of the fuel cell stack of claim 1, wherein a flow meter and a first pressure sensor are arranged between the bypass pipe and the inlet of the stack, and a second pressure sensor is arranged between the bypass pipe and the outlet of the stack.
10. The monolithic waterway temperature control system of claim 1, wherein the circulating waterway is provided with a conductivity transmitter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210106153.9A CN114883608A (en) | 2022-01-28 | 2022-01-28 | Single-chip waterway temperature control system of fuel cell stack |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210106153.9A CN114883608A (en) | 2022-01-28 | 2022-01-28 | Single-chip waterway temperature control system of fuel cell stack |
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| CN114883608A true CN114883608A (en) | 2022-08-09 |
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| CN202210106153.9A Pending CN114883608A (en) | 2022-01-28 | 2022-01-28 | Single-chip waterway temperature control system of fuel cell stack |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002313377A (en) * | 2001-04-12 | 2002-10-25 | Nissan Motor Co Ltd | Conductivity controlling device of fuel cell system |
| JP2004014324A (en) * | 2002-06-07 | 2004-01-15 | Honda Motor Co Ltd | Cooling water circulation/feed system for fuel cell |
| US20160164117A1 (en) * | 2014-12-08 | 2016-06-09 | Hyundai Motor Company | Coolant bypass structure |
| CN110600767A (en) * | 2018-05-24 | 2019-12-20 | 丰田自动车株式会社 | Fuel cell system |
| CN112098854A (en) * | 2020-08-06 | 2020-12-18 | 上海艾福亿维测试设备有限公司 | Cooling test system suitable for fuel cell test and control method thereof |
| CN113659179A (en) * | 2021-08-20 | 2021-11-16 | 大连锐格新能源科技有限公司 | Hydrogen backflow control system and control method for fuel cell test platform |
-
2022
- 2022-01-28 CN CN202210106153.9A patent/CN114883608A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002313377A (en) * | 2001-04-12 | 2002-10-25 | Nissan Motor Co Ltd | Conductivity controlling device of fuel cell system |
| JP2004014324A (en) * | 2002-06-07 | 2004-01-15 | Honda Motor Co Ltd | Cooling water circulation/feed system for fuel cell |
| US20160164117A1 (en) * | 2014-12-08 | 2016-06-09 | Hyundai Motor Company | Coolant bypass structure |
| CN110600767A (en) * | 2018-05-24 | 2019-12-20 | 丰田自动车株式会社 | Fuel cell system |
| CN112098854A (en) * | 2020-08-06 | 2020-12-18 | 上海艾福亿维测试设备有限公司 | Cooling test system suitable for fuel cell test and control method thereof |
| CN113659179A (en) * | 2021-08-20 | 2021-11-16 | 大连锐格新能源科技有限公司 | Hydrogen backflow control system and control method for fuel cell test platform |
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