CN218525611U - Water route cold start big or small circulation system of fuel cell pile test - Google Patents
Water route cold start big or small circulation system of fuel cell pile test Download PDFInfo
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- CN218525611U CN218525611U CN202222288602.4U CN202222288602U CN218525611U CN 218525611 U CN218525611 U CN 218525611U CN 202222288602 U CN202222288602 U CN 202222288602U CN 218525611 U CN218525611 U CN 218525611U
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- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
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- Y02E60/30—Hydrogen technology
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Abstract
The utility model relates to a waterway cold start large and small circulating system for fuel cell stack test, which comprises a stack, a water tank, a main water inlet pipe, a main water outlet pipe and a cold start pipe; the main water inlet pipe is connected with the water tank and the electric pile water inlet, the main water outlet pipe is connected with the water tank and the electric pile water outlet, a first connecting point is arranged on the main water inlet pipe, a second connecting point is arranged on the main water outlet pipe, and two ends of the cold starting pipe are respectively connected with the first connecting point and the second connecting point; be equipped with the angle seat valve between water tank and second tie point, install two three-way valves that go into a structure on the first tie point, main inlet tube and cold start pipe are connected respectively to two entrances of three-way valve, and the exit linkage of three-way valve is to the pile water inlet, is provided with the low temperature water pump on the cold start pipe. Compared with the prior art, the utility model provides a big circulation and little circulation water route can switch big or small circulation in a flexible way, and the little volumetric water route rapid heating up condition of the inside little circulation of engine and big or small circulation mix or switch the situation when the cold start of accurate simulation.
Description
Technical Field
The utility model belongs to the technical field of fuel cell test technique and specifically relates to a water route cold start big or small circulation system of fuel cell pile test is related to.
Background
The Proton Exchange Membrane Fuel Cell (PEMFC) stack is considered as one of the most promising new energy sources in the future due to its advantages of high power density, high energy conversion, zero pollution discharge, etc., but the cold start problem in low temperature environment is one of the major barriers to commercialization thereof, because the product of the fuel cell is water, a small amount of water exists inside the stack during shutdown, in the environment below 0 ℃, the residual liquid water is adhered to the flow channel and freezes, which seriously affects the life of the fuel cell stack, and after multiple cold starts, the surface of the catalyst layer may crack, which degrades the performance of the fuel cell. Therefore, during the development testing phase, the fuel cell stack often requires a cold start test to evaluate the performance of the fuel cell.
However, when the cold start test is performed on the galvanic pile without the engine BOP, the temperature of the water path cannot be accurately controlled during the cold start, and when the conventional test board on the market is used for testing, the test board cannot bear low-temperature test, and part of components are easily damaged. Meanwhile, the large-circulation device of the current test board cannot accurately simulate the rapid temperature rise condition of a small-circulation small-volume water channel in the engine during cold start, and cannot simulate the mixing or switching condition of the large circulation and the small circulation simultaneously.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a big or small circulation system of cold start-up in water route of fuel cell pile test in order to overcome the defect that above-mentioned prior art exists, under the prerequisite of having guaranteed cold start-up, still guaranteed the temperature not undulant when switching the return circuit.
The purpose of the utility model can be realized by the following technical proposal:
a waterway cold start large and small circulating system for fuel cell stack test comprises a stack, a water tank, a main water inlet pipe, a main water outlet pipe and a cold start pipe;
the cold starting device comprises a main water inlet pipe, a main water outlet pipe, a cold starting pipe, a water tank, a pile water inlet, a pile water outlet, a pile water inlet pipe, a pile water outlet pipe, a pile water inlet pipe, a pile water outlet pipe and a cold starting pipe, wherein the main water inlet pipe is connected with the water tank and the pile water inlet, the main water outlet pipe is connected with the water tank and the pile water outlet, the main water inlet pipe is provided with a first connecting point, the main water outlet pipe is provided with a second connecting point, and two ends of the cold starting pipe are respectively connected with the first connecting point and the second connecting point;
at the water tank with water pump, heater and plate heat exchanger have set gradually between the first tie point, plate heat exchanger's cold side is equipped with cooling water flow proportional valve, controls plate heat exchanger's cooling water flow to regulation and control plate heat exchanger's heat transfer cooling volume, at the water tank with be equipped with the angle seat valve between the second tie point, install the three-way valve of two income structures on the first tie point, main inlet tube and cold start pipe are connected respectively to two entries of three-way valve, the exit linkage of three-way valve is to the pile water inlet, be provided with the low temperature water pump on the cold start pipe.
The working principle of the application is as follows:
when the angle seat valve is opened, the water tank is taken as a starting point, the water tank, the main water inlet pipe, the electric pile water inlet, the electric pile water outlet, the main water outlet pipe and the water tank form a large circulation loop, the water temperature is controlled through the heater and the plate heat exchanger, and when the angle seat valve is closed, the three-way valve, the electric pile water inlet, the electric pile water outlet, the cold starting pipe and the three-way valve form a small circulation loop by taking the three-way valve as a starting point.
Preferably, a flow meter is arranged between the plate heat exchanger and the first connection point, and the water flow into the galvanic pile is monitored when the angle seat valve is opened.
Preferably, be equipped with the moisturizing module on the water tank, including the water inlet source, be equipped with the ball valve on the pipeline between water inlet source and the water tank in proper order, the entry filter, the relief pressure valve, entry pressure sensor and entry solenoid valve, the water inlet source provides deionized water, the ball valve is manual switch, break-make between water inlet source and the water tank can manual control, 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 of water tank entry, the entry solenoid valve is by software electric control, can automatic switching, the break-make between control water inlet source and the water tank.
Preferably, be equipped with drainage module on the water tank, including the tail row, link to each other through two parallelly connected branches between tail row and the water tank, be equipped with drainage solenoid valve and drainage ball valve on two branches respectively, can carry out automatic control through drainage solenoid valve and come the drainage, also can come the drainage through manual control through drainage ball valve.
Preferably, be equipped with the pressure regulating module on the water tank, including the air feed source, the air feed source passes through the upper portion that the pipeline lets in the water tank, be equipped with electronic proportional valve and air-vent valve on the pipeline, install the relief valve on the water tank, the air feed source can provide inert gas such as nitrogen, controls pressure through electronic proportional valve and pressure-vent valve to the pressure of control whole return circuit, the relief valve is used for realizing the overpressure protection.
Preferably, be equipped with the liquid level monitoring module in the water tank, including a plurality of level sensor, set up respectively in the not co-altitude position of water tank for the water level height in the monitoring water tank.
Preferably, 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.
Preferably, still be equipped with main road filter and main road flow proportional valve between water pump and the plate heat exchanger, the further impurity of filtering of main road filter, main road flow proportional valve cooperation water pump can the accurate control circulation water route the flow.
Preferably, the water tank is internally provided with an in-tank temperature sensor for detecting the water temperature in the water tank, the in-tank temperature sensor can be a thermal resistance temperature sensor, a plate-type heat exchanger rear-end temperature sensor is arranged between the plate-type heat exchanger and the first connecting point for detecting the water temperature after passing through the plate-type heat exchanger, a pile inlet temperature sensor and a pile inlet pressure sensor are arranged between the first connecting point and the pile water inlet for detecting the temperature and the pressure of the pile water inlet, a pile outlet temperature sensor and a pile outlet pressure sensor are arranged between the second connecting point and the pile water outlet for detecting the temperature and the pressure of the pile water outlet.
Preferably, a conductivity transmitter is further arranged between the water tank and the first connecting point and used for detecting the conductivity of the whole system loop, and when the conductivity is too high, the conductivity can be reduced through water replenishing and draining.
Compared with the prior art, the utility model discloses following beneficial effect has:
(1) Through addding angle seat valve, cold start pipe, low temperature water pump and three-way valve, provided major cycle and little circulation water route, can switch big size circulation in a flexible way, the little volumetric water route rapid heating up condition of the inside minor cycle of engine when accurate simulation cold start, the mixed or switching situation of simulation size circulation simultaneously.
(2) The system has the advantages that functions such as cold start temperature control, water level control, flow control and pressure control are provided, test requirements are met, the waterway temperature is accurately controlled when cold start is carried out, parameter values of the system are accurately monitored, and the temperature stability during circular switching of the large and the small can be guaranteed.
(3) Realize the switching of big size circulation through the angle seat valve, the not low temperature resistant components and parts such as plate heat exchanger set up in the big circulation water route to the not low temperature resistant components and parts have been protected.
Drawings
Fig. 1 is a schematic structural view of the present invention;
reference numerals: 1: a ball valve; 2: an inlet filter; 3: a pressure reducing valve; 4: an inlet pressure sensor; 5: an inlet solenoid valve; 6: a water tank; 7: a heater; 8: an in-box temperature sensor; 9: a low level sensor; 10: a medium liquid level sensor; 11: a high level sensor; 12: an electrically operated 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 board replacement rear end temperature sensor; 21: a flow meter; 22: a stack inlet pressure sensor; 23: a stack inlet temperature sensor; 24: a cell stack outlet temperature sensor; 25: a stack outlet pressure sensor; 26: a safety valve; 27: a water discharge electromagnetic valve; 28: a drain ball valve; 29: a low-temperature water pump; 30: an angle seat valve; 31: a three-way valve; 32: and (4) electric pile.
Detailed Description
The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments. The embodiment of the present invention 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, elements that are structurally identical are represented by like reference numerals, and elements that are structurally or functionally similar in each instance are represented by like reference numerals. 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. In order to make the illustration clearer, the matching relationship between the various components is shown, and the components are appropriately scaled and the distances between the components are increased or decreased in some places in the drawings.
In the description of the embodiments of the present application, it is to be understood that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like, refer to the orientation or positional relationship as shown in the drawings, or as conventionally placed in use of the product of the application, or as conventionally understood by those skilled in the art, and are used merely for convenience of description and for simplicity of description, and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed in a particular orientation, and be operated, and therefore should not be considered as limiting the present application.
In the description of the embodiments of the present application, it should also be noted that, unless otherwise explicitly stated or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art.
Example 1:
a waterway cold start large and small circulating system for fuel cell stack test is shown in figure 1 and comprises a stack 32, a water tank 6, a main water inlet pipe, a main water outlet pipe and a cold start pipe, wherein the stack 32 is a to-be-tested piece;
the main water inlet pipe is connected with the water tank 6 and the electric pile water inlet, the main water outlet pipe is connected with the water tank 6 and the electric pile water outlet, a first connecting point is arranged on the main water inlet pipe, a second connecting point is arranged on the main water outlet pipe, and two ends of the cold starting pipe are respectively connected with the first connecting point and the second connecting point;
water pump 15 has set gradually between water tank 6 and first tie point, heater 7 and plate heat exchanger 18, plate heat exchanger 18's cold side is equipped with cooling water flow proportional valve, control plate heat exchanger 18's cooling water flow, in order to regulate and control plate heat exchanger 18's heat transfer cooling volume, be equipped with angle seat valve 30 between water tank 6 and second tie point, install two three-way valves 31 of going into a structure on the first tie point, three-way valve 31 is the electron three-way valve, main inlet tube and cold starting pipe are connected respectively to two entries of three-way valve 31, the exit linkage of three-way valve 31 is to the pile water inlet, be provided with low temperature water pump 29 on the cold starting pipe.
The working principle of the application is as follows:
the angle seat valve 30 controls the switching of large and small circulation flow, when the angle seat valve 30 is opened, large circulation is carried out, a large circulation loop is formed by taking the water tank 6 as a starting point, the water tank 6, the main water inlet pipe, the electric pile water inlet, the electric pile water outlet, the main water outlet pipe and the water tank 6, and the water temperature is controlled by the heater 7 and the plate heat exchanger 18; when the angle seat valve 30 is closed, small circulation is performed, the three-way valve 31 is taken as an initial point, the three-way valve 31, the galvanic pile water inlet, the galvanic pile water outlet, the cold start pipe and the three-way valve 31 form a small circulation loop, the low-temperature water pump 29 provides small circulation flow, and the three-way valve 31 adjusts the distribution of the small circulation flow and the large circulation flow.
Be equipped with the moisturizing module on the water tank 6, be used for whole water route moisturizing, including the water supply source, 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 inlet solenoid valve 5, the water supply source provides deionized water, ball valve 1 is manual switch, break-make between water supply and the water tank 6 can be entered to manual control, entry filter 2 is used for filtering the impurity of aquatic, relief pressure valve 3 is used for the pressure of intaking of control tank 6, entry pressure sensor 4 is used for detecting the pressure of intaking that 6 entrys of water tank, inlet solenoid valve 5 is by software electric control, can automatic switching, control the break-make between water supply and the water tank 6.
Be equipped with drainage module on the water tank 6, including the tail row, link to each other through two parallelly connected branches between tail row and the water tank 6, be equipped with drainage solenoid valve 27 and drainage ball valve 28 on two branches respectively, can carry out automatic control through drainage solenoid valve 27 and come the drainage, also can come the drainage through manual control through drainage ball valve 28.
Be equipped with liquid level monitoring module in the water tank 6, including a plurality of level sensor, set up respectively in the not co-altitude position of water tank 6 for the water level height in the monitoring 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.
Through liquid level monitoring module, entire system water level can be controlled to moisturizing module and drainage module, guarantee normal operating, when the liquid level was too high (high level sensor 11 detects there is water), drainage solenoid valve 27 is automatic to be opened and is carried out the moisturizing, when the liquid level was lower (well level sensor detects 10 and does not have water), open entry solenoid valve 5 and carry out the moisturizing, when the liquid level was low when (low level sensor 9 detects not water), open entry solenoid valve 5 and carry out the moisturizing, entire system can't start simultaneously.
And a conductivity transmitter 14 is arranged between the water tank 6 and the first connecting point and used for detecting the conductivity of the whole system loop, and when the conductivity is too high, the conductivity can be reduced by water replenishing and draining. A main path filter 17 is arranged between the water pump 15 and the plate heat exchanger 18, and the main path filter 17 further filters impurities. Main circuit filter 17 and conductivity transmitter 14 can perform both water circuit filtration and water quality detection.
A main path flow proportional valve 16 is further arranged between the water pump 15 and the plate type heat exchanger 18, the water pump 15 provides the flow of the whole loop, the flow can be roughly regulated and controlled, the main path flow proportional valve 16 can accurately control the flow, and the main path flow proportional valve 16 can control the flow of the whole circulating water path in cooperation with the water pump 15; a flow meter 21 is arranged between the plate heat exchanger 18 and the first connection point, which monitors the water flow into the stack 32 when the angle seat valve 30 is open. During a large circulation (the angle seat valve 30 is opened), the requirement on flow control is high, and the whole flow can be controlled by the water pump 15, the main path flow proportional valve 16 and the flow meter 21. When the small circulation is performed (the angle seat valve 30 is closed), the requirement on the accuracy of flow control is low, the flow of the small circulation water path can be calculated by depending on the working parameters and the empirical data of the low-temperature water pump 29, and the test requirement is met.
The water tank 6 is also provided with a pressure regulating module which comprises a gas supply source, the gas supply source is introduced into the upper part of the water tank 6 through a pipeline, the pipeline is provided with an electric proportional valve 12 and a pressure regulating valve 13, the water tank 6 is provided with a safety valve 26, the gas supply source can provide inert gases such as nitrogen, the pressure is controlled through the electric proportional valve 12 and the pressure regulating valve 13, the pressure of the whole loop is controlled, and the safety valve 26 is used for realizing overpressure protection.
A heater 7 and a plate heat exchanger 18 are arranged between the water tank 6 and the first connecting point, the heater 7 is a heating rod and can heat water in the loop, and a cooling water flow proportional valve 19 is arranged on the cold side of the plate heat exchanger 18 so as to control the cooling water flow of the plate heat exchanger 18, regulate and control the heat exchange and cooling amount of the plate heat exchanger 18 and cool the water in the loop. An in-tank temperature sensor 8 is arranged in the water tank 6 and used for detecting the water temperature in the water tank 6, the in-tank temperature sensor 8 can be a thermal resistance temperature sensor, and a plate heat exchanger rear end temperature sensor 20 is arranged between the plate heat exchanger 18 and the first connecting point and used for detecting the water temperature after passing through the plate heat exchanger 18; the temperature of the whole circuit can be regulated and controlled by means of the heater 7, the plate heat exchanger 18, the in-box temperature sensor 8, the plate post-exchange temperature sensor 20, and the cooling water flow rate proportional valve 19.
In addition, the inlet and outlet of the galvanic pile 32 are provided with temperature and pressure monitoring devices, a galvanic pile inlet temperature sensor 23 and a galvanic pile inlet pressure sensor 22 are arranged between the first connecting point and the galvanic pile water inlet to detect the temperature and the pressure of the water inlet of the galvanic pile 32, and a galvanic pile outlet temperature sensor 24 and a galvanic pile outlet pressure sensor 25 are arranged between the second connecting point and the galvanic pile water outlet to detect the temperature and the pressure of the water outlet of the galvanic pile 32.
This application has guaranteed going on of whole cold start through theory of entirety, cold start microcirculation branch road, has guaranteed the simulation of galvanic pile 32 microcirculation cold start, has the accurate control of temperature simultaneously and can the flow and the pressure of the whole test of simultaneous control.
The low-temperature water pump 29 is used for providing flow when the small circulation is used, the inlet and outlet temperature of the galvanic pile 32 can be stable by accurately controlling the rotating speed of the low-temperature water pump 29, the angle seat valve 30 is used for controlling the switch when the large circulation and the small circulation flow are switched, the three-way valve 31 is used for controlling and adjusting the distribution of the cold start small circulation and the large circulation flow, and the inlet temperature of the galvanic pile 32 is stable by flow mixing when the cold start is carried out or when the stable work is carried out after the cold start is finished. The small circulation volume design is designed through the volume of water in the electric pile 32 and the full-power heating power of the electric pile 32, the heating rate of a small circulation water path can reach the heating rate of more than 100 ℃/min when the heating power is 10%, and the load is pulled to an idle point (about 55 ℃) from-40 ℃ in one minute when the electric pile 32 is in cold start, so that the limit working condition of the electric pile 32 in cold start can be tested more conveniently. At the same time, the part, the measured element electric pile 32 and the inlet and outlet temperature sensors are arranged in an environment cabin, and the environment box and the precooler control are integrated in software.
The foregoing has described in detail preferred embodiments of the present invention. It should be understood that numerous modifications and variations can be devised by those skilled in the art in light of the present teachings without departing from the inventive concepts. Therefore, the technical solutions that can be obtained by a person skilled in the art through logic analysis, reasoning or limited experiments based on the prior art according to the concepts of the present invention should be within the scope of protection defined by the claims.
Claims (10)
1. A waterway cold start large and small circulating system for fuel cell stack test is characterized by comprising a stack, a water tank, a main water inlet pipe, a main water outlet pipe and a cold start pipe;
the cold starting device comprises a main water inlet pipe, a main water outlet pipe, a cold starting pipe, a water tank, a pile water inlet, a pile water outlet, a pile water inlet pipe, a pile water outlet pipe, a pile water inlet pipe, a pile water outlet pipe and a cold starting pipe, wherein the main water inlet pipe is connected with the water tank and the pile water inlet, the main water outlet pipe is connected with the water tank and the pile water outlet, the main water inlet pipe is provided with a first connecting point, the main water outlet pipe is provided with a second connecting point, and two ends of the cold starting pipe are respectively connected with the first connecting point and the second connecting point;
the water tank with water pump, heater and plate heat exchanger have set gradually between the first tie point, plate heat exchanger's cold side is equipped with cooling water flow proportional valve, the water tank with be equipped with the angle seat valve between the second tie point, install the three-way valve of two income a structure on the first tie point, main inlet tube and cold starting pipe are connected respectively to two entries of three-way valve, the exit linkage of three-way valve to the pile water inlet, be provided with the low temperature water pump on the cold starting pipe.
2. The waterway cold start large and small circulating system for the fuel cell stack test according to claim 1, wherein a flow meter is arranged between the plate heat exchanger and the first connecting point.
3. The waterway cold start large and small circulating system for the fuel cell stack test according to claim 1, wherein the water tank is provided with a water replenishing module comprising 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.
4. The waterway cold start large and small circulating system for the fuel cell stack test according to claim 1, wherein the water tank is provided with a drainage module, the drainage module comprises a tail row, the tail row is connected with the water tank through two parallel branches, and the two branches are respectively provided with a drainage electromagnetic valve and a drainage ball valve.
5. The waterway cold start-up size-and-breadth circulating system for the fuel cell stack test of claim 1, wherein the water tank is provided with a pressure regulating module which 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.
6. The waterway cold start large and small circulating system for the fuel cell stack test according to claim 1, wherein a liquid level monitoring module is arranged in the water tank, and 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.
7. The waterway cold start-up size-and-breadth circulation system for the fuel cell stack test according to claim 6, 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.
8. The waterway cold start-up size-and-breadth circulation system for the fuel cell stack test according to claim 1, wherein a main path filter and a main path flow proportional valve are further arranged between the water pump and the plate heat exchanger.
9. The waterway cold start large and small circulation system for fuel cell stack test according to claim 1, wherein an in-tank temperature sensor is arranged in the water tank, a plate exchanger rear end temperature sensor is arranged between the plate heat exchanger and the first connecting point, a stack inlet temperature sensor and a stack inlet pressure sensor are arranged between the first connecting point and the stack water inlet, and a stack outlet temperature sensor and a stack outlet pressure sensor are arranged between the second connecting point and the stack water outlet.
10. The waterway cold start-up size-and-breadth circulating system for the fuel cell stack test of claim 1, wherein a conductivity transmitter is further arranged between the water tank and the first connecting point.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222288602.4U CN218525611U (en) | 2022-08-30 | 2022-08-30 | Water route cold start big or small circulation system of fuel cell pile test |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222288602.4U CN218525611U (en) | 2022-08-30 | 2022-08-30 | Water route cold start big or small circulation system of fuel cell pile test |
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| CN218525611U true CN218525611U (en) | 2023-02-24 |
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| CN202222288602.4U Active CN218525611U (en) | 2022-08-30 | 2022-08-30 | Water route cold start big or small circulation system of fuel cell pile test |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117936839A (en) * | 2024-03-22 | 2024-04-26 | 武汉海亿新能源科技有限公司 | Multi-path circulating cooling device for fuel cell and control method thereof |
| CN117936839B (en) * | 2024-03-22 | 2024-06-21 | 武汉海亿新能源科技有限公司 | Multi-path circulating cooling device for fuel cell and control method thereof |
-
2022
- 2022-08-30 CN CN202222288602.4U patent/CN218525611U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117936839A (en) * | 2024-03-22 | 2024-04-26 | 武汉海亿新能源科技有限公司 | Multi-path circulating cooling device for fuel cell and control method thereof |
| CN117936839B (en) * | 2024-03-22 | 2024-06-21 | 武汉海亿新能源科技有限公司 | Multi-path circulating cooling device for fuel cell and control method thereof |
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