A water tank for AEM fuel cell stack test activation stage with heat function

Abstract

This invention discloses a water tank for an AEM fuel cell stack test activation stage with a heating function, relating to the field of hydrogen electrolysis technology. The invention provides a water tank for an AEM fuel cell stack test activation stage with a heating function, including a water tank, a protective shell fixedly connected to the water tank, a pair of connecting valves installed in the water tank, a liquid pump fixedly connected and connected to the water tank, longitudinally distributed temperature-conducting vanes rotatably connected to the water tank, a heat-insulating cylinder fixedly connected to the water tank, a connecting pipe fixedly connected to the heat-insulating cylinder, a temperature control component installed in the heat-insulating cylinder, longitudinally distributed connectors installed in the water tank, and an air pump fixedly connected and connected to the connecting pipe. This invention, through components such as the temperature-conducting vanes and connecting pipes, not only allows for sufficient contact with the electrolyte in the water tank but also extends the residence time of the electrolyte in the water tank. This enables the temperature-conducting vanes and other components to uniformly and effectively cool or heat the electrolyte, improving the temperature regulation effect of the water tank in this AEM fuel cell stack test activation stage.

Description

Technical Field

[0001] This invention relates to the field of electrolytic hydrogen production technology, and in particular to a water tank for an AEM stack test activation platform with a heat function. Background Technology

[0002] Anion exchange membrane (AEM) fuel cell stacks are devices used for hydrogen production through water electrolysis. They decompose water molecules into hydrogen and oxygen through an electrochemical reaction. The core component is the anion exchange membrane, which allows hydroxide ions to migrate during electrolysis. The water tank in the AEM stack testing activation station is a key component of the AEM stack testing system, primarily used to store and supply the electrolyte, ensuring its circulation within the stack and tank. During AEM stack testing, the water tank delivers the electrolyte to the stack via a pump, maintaining the water and electrolyte balance within the stack to promote smooth electrolysis. The tank is typically equipped with a filtration system to remove impurities from the electrolyte, preventing adverse effects on stack performance. Furthermore, it assists external cooling and heating systems in regulating the electrolyte temperature, ensuring the stack operates at a suitable temperature to improve electrolysis efficiency and extend its lifespan.

[0003] While the existing AEM fuel cell stack test activation station water tank can accurately regulate the electrolyte temperature in conjunction with the cooling and heating systems, the electrolyte is circulated, and the cooling and heating systems are usually installed on one side wall inside the water tank. Therefore, the electrolyte does not stay in the water tank for long when it flows through the tank, and the cooling and heating systems are also difficult to uniformly and effectively cool or heat the electrolyte in a short time. As a result, the temperature regulation effect of this AEM fuel cell stack test activation station water tank is poor.

[0004] Based on the above, this invention proposes a water tank for an AEM fuel cell stack test activation stage with good temperature regulation and heat function. Summary of the Invention

[0005] To overcome the shortcomings of existing AEM fuel cell stack test activation station water tanks, which, although capable of accurately regulating electrolyte temperature with cooling and heating systems, suffer from poor temperature regulation due to the circulating electrolyte and the fact that cooling and heating systems are typically installed on one side wall inside the tank, resulting in the electrolyte not remaining in the tank for long and the cooling and heating systems struggling to uniformly and effectively cool or heat the electrolyte in a short time, this invention provides an AEM fuel cell stack test activation station water tank with improved temperature regulation and a heating function.

[0006] A water tank for an AEM fuel cell stack test activation stage with heat function includes a water tank, a protective shell, connecting valves, a liquid pump, a temperature-conducting vane, an insulation cylinder, a connecting pipe, an air pump, connectors, and a temperature control component. The water tank is fixedly connected to the protective shell. The water tank is equipped with a pair of connecting valves. The water tank is fixedly connected to and connected to the liquid pump. The water tank is rotatably connected to longitudinally distributed temperature-conducting vanes. The water tank is fixedly connected to the insulation cylinder, and the insulation cylinder is fixedly connected to the connecting pipe. The insulation cylinder is equipped with a temperature control component. The water tank is equipped with longitudinally distributed connectors, wherein the connectors are divided into upper and lower parts that are rotatably connected to each other. The upper part of the connector is fixedly connected to and connected to the temperature-conducting vane, and the lower part of the connector is fixedly connected to the water tank. The connecting pipe is fixedly connected to and connected to the lower part of the longitudinally distributed connector. The water tank is fixedly connected to the air pump, and the air pump is fixedly connected to and connected to the connecting pipe.

[0007] In a preferred embodiment of the invention, the water tank is fixedly connected to longitudinally staggered arrow-shaped abutments.

[0008] In a preferred embodiment of the present invention, the interior of the temperature-conducting rotating blade is hollow.

[0009] In a preferred embodiment of the present invention, a recycling mechanism is further included. The recycling mechanism is disposed in a water tank and includes an infusion tube, a suction cylinder, an electric slide rail, and a moving block. The pairs of suction cylinders are fixedly connected to the water tank. The cylinder body of the suction cylinder is fixedly connected to the water tank and communicates with the infusion tube. The piston rods of the pairs of suction cylinders are fixedly connected to the moving block. The water tank is fixedly connected to the electric slide rail, and the electric slide rail is fixedly connected to the moving block through a slider.

[0010] In a preferred embodiment of the present invention, a guiding mechanism is further included. The guiding mechanism is disposed on the temperature-conducting rotating blade. The guiding mechanism includes a guide frame, a baffle and a guide tube. The guide frame is rotatably connected to the temperature-conducting rotating blade. The lower half of the connector is fixedly connected to the baffle. The baffle is rotatably connected to the upper half of the connector. Three guide tubes are fixedly connected and communicate between the baffle and the guide frame.

[0011] In a preferred embodiment of the present invention, an auxiliary mechanism is further included. The auxiliary mechanism is disposed in the water tank and includes a hollow buffer block and a guide pipe. The guide pipe is fixedly connected to the water tank and is fixedly connected to and connected to a connecting pipe. A one-way valve is fixedly connected to the guide pipe, and the guide pipe is fixedly connected to and connected to uniformly distributed hollow buffer blocks.

[0012] In a preferred embodiment of the present invention, a delay mechanism is further included. The delay mechanism is disposed in the water tank and includes a mounting frame and a blocking wheel. The mounting frames are fixedly connected to the water tank in pairs of staggered arrangement, and the mounting frames are rotatably connected to the pairs of blocking wheels.

[0013] In a preferred embodiment of the present invention, the blocking wheel is hollow inside and has oblique holes that are circumferentially distributed.

[0014] Compared with the prior art, the present invention has the following advantages: 1. The present invention, through components such as the temperature-conducting rotating blade and the connecting pipe, can not only fully contact the electrolyte in the water tank, but also extend the residence time of the electrolyte in the water tank, so that the temperature-conducting rotating blade and other components can uniformly and effectively cool or heat the electrolyte, thereby improving the temperature regulation effect of the water tank of this AEM stack test activation station.

[0015] 2. This invention, through components such as a suction cylinder and an electric slide rail, can recover the electrolyte in the externally connected pipe after a single test, thereby avoiding leakage and resource waste caused by the externally connected pipe after disconnection from the AEM stack, and improving the practicality and resource utilization efficiency of the AEM stack test activation platform water tank.

[0016] 3. The present invention can guide the flow of gas and fully replace the gas in the temperature-conducting vane through components such as guide frames and baffles, thereby avoiding poor temperature regulation effect of the temperature-conducting vane due to low gas replacement rate, and improving the temperature regulation effect of the water tank of the AEM stack test activation station.

[0017] 4. The present invention, through components such as hollow slowing blocks and flow guides, can not only obstruct the flow of electrolyte, thereby prolonging the residence time of electrolyte in the water tank, but also further increase the contact area between the temperature control components and the electrolyte, thus improving the temperature regulation effect of the water tank of this AEM stack test activation station.

[0018] 5. The present invention, through components such as mounting brackets and blocking wheels, can slow down the flow rate of electrolyte and extend the residence time of electrolyte in the water tank, thereby giving components such as temperature-conducting vanes sufficient time to cool or heat the electrolyte, thus improving the temperature regulation effect of the water tank of this AEM stack test activation station. Attached Figure Description

[0019] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0020] Figure 2 This is a three-dimensional structural diagram of the water tank, protective shell, and connecting valve components of the present invention.

[0021] Figure 3 This is a three-dimensional structural diagram of the water tank, connecting valve, and temperature-conducting vane components of the present invention.

[0022] Figure 4 This is a three-dimensional structural diagram of the water tank, connecting valve, and liquid pump components of the present invention.

[0023] Figure 5 This is a three-dimensional structural diagram of the components of the present invention, including the heat preservation cylinder, connecting pipe, and air pump.

[0024] Figure 6This is a three-dimensional structural diagram of the components of the present invention, including the heat-conducting rotating blade, the heat-insulating cylinder, and the connecting pipe.

[0025] Figure 7 This is a three-dimensional structural diagram of the components of the present invention, including the infusion tube, suction cylinder, and electric slide rail.

[0026] Figure 8 This is a three-dimensional structural diagram of the guide frame, baffle, and guide tube of the present invention.

[0027] Figure 9 This is a three-dimensional structural diagram of the hollow slowing block, the guide pipe, and the water tank in this invention.

[0028] Figure 10 This is a three-dimensional structural diagram of the hollow slowing block, the guide pipe, and the connecting pipe in this invention.

[0029] Figure 11 This is a three-dimensional structural diagram of the mounting frame, blocking wheels, and water tank components of the present invention.

[0030] Figure 12 This is a three-dimensional structural diagram of the mounting bracket and the blocking wheel of the present invention.

[0031] The above-mentioned attached drawings include the following reference numerals: 1. Water tank, 11. Protective shell, 12. Connecting valve, 13. Liquid pump, 14. Temperature guide vane, 15. Insulation cylinder, 16. Connecting pipe, 17. Air pump, 18. Connector, 19. Temperature control component, 2. Infusion pipe, 21. Suction cylinder, 22. Electric slide rail, 23. Moving block, 3. Guide frame, 31. Baffle, 32. Conduit, 4. Hollow buffer block, 41. Flow guide pipe, 5. Mounting frame, 51. Blocking wheel. Detailed Implementation

[0032] Although the invention may be described with respect to specific applications or industries, those skilled in the art will recognize its broader applicability. Those skilled in the art will understand that terms such as "above," "below," "upward," "downward," etc., are used to describe the drawings and not to indicate a limitation on the scope of the invention as defined by the appended claims. Any numerical designations such as "first" or "second" are merely illustrative and not intended to limit the scope of the invention in any way. Example

[0033] A water tank for AEM fuel cell stack test activation stage with heat function, such as Figures 1-6As shown, the system includes a water tank 1, a protective shell 11, a connecting valve 12, a liquid pump 13, a temperature-conducting impeller 14, a heat-insulating cylinder 15, a connecting pipe 16, an air pump 17, a connector 18, and a temperature control assembly 19. The protective shell 11 is fixed to the right side of the water tank 1. The connecting valve 12 is installed on both the left and right sides of the front of the water tank 1. The liquid pump 13 is fixed to and connected to the rear side of the interior of the water tank 1. The temperature-conducting impeller 14, which is rotatably connected to the interior of the water tank 1, is distributed longitudinally. The heat-insulating cylinder 15 is fixed to the right side of the water tank 1, and a connecting pipe is fixed to the middle of the heat-insulating cylinder 15. 16. A temperature control component 19 is installed inside the heat preservation cylinder 15. A connector 18 with longitudinal distribution is installed on the lower side of the inside of the water tank 1. The connector 18 is divided into two parts that are rotatably connected to each other. The upper part of the connector 18 is fixedly connected to and communicates with the adjacent temperature-conducting rotating blade 14. The lower part of the connector 18 is fixedly connected to the water tank 1. The connecting pipe 16 is fixedly connected to and communicates with the lower part of the connector 18 with longitudinal distribution. An air pump 17 is fixedly connected to the lower side of the inside of the water tank 1. The air pump 17 is fixedly connected to and communicates with the connecting pipe 16.

[0034] like Figures 2-5 As shown, arrow-shaped baffles are fixedly connected to the inside of water tank 1 in a longitudinally staggered manner.

[0035] like Figure 5 and Figure 6 As shown, the internal structure of the temperature-conducting rotating blade 14 is hollow.

[0036] When workers need to test the performance of the AEM fuel cell stack, they must first connect the inlet and outlet of the AEM fuel cell stack to the connecting valve 12 and liquid pump 13 on the water tank 1 via two external pipes, respectively. Then, they open the connecting valve 12, and start the AEM fuel cell stack, temperature control component 19, liquid pump 13, and air pump 17 to begin testing. The liquid pump 13 circulates the electrolyte in the water tank 1 within the AEM fuel cell stack, pipes, and water tank 1. When electrolyte loss occurs, the water tank 1's built-in replenishment component replenishes the electrolyte. The temperature control component 19 cools or heats the gas in components such as the connecting pipe 16 according to the current electrolyte temperature. The air pump 17 drives the gas to circulate counterclockwise within the connecting pipe 16, connector 18, and temperature-conducting vane 14, and uses the temperature-conducting vane 14 to regulate the water... The electrolyte in tank 1 is cooled or heated. Because there are arrow-shaped baffles arranged longitudinally in the tank 1, which divide the flow path of the electrolyte into an S-shape, the flow path of the electrolyte is extended, and the residence time of the electrolyte in the tank 1 is also extended. As the electrolyte flows along the S-shaped path, it will come into contact with the temperature-conducting vane 14 and cause it to rotate. Therefore, the temperature-conducting vane 14 will not only slightly obstruct the flow of the electrolyte, but also make full contact with the electrolyte in the tank 1. This allows the temperature-conducting vane 14 and other components to cool or heat the electrolyte evenly and effectively. After the test is completed, first turn off the AEM stack, temperature control component 19, liquid pump 13 and air pump 17, and then disconnect the two external pipes from the AEM stack and close the connection valve 12. Example

[0037] Based on Example 1, such as Figure 2 and Figure 7 As shown, it also includes a recycling mechanism, which is located in the water tank 1. The recycling mechanism includes an infusion tube 2, a suction cylinder 21, an electric slide rail 22, and a moving block 23. The two suction cylinders 21 are respectively fixed to the left and right sides inside the water tank 1. The cylinder body of the suction cylinder 21 is fixed to the water tank 1 and connected to the infusion tube 2. The moving block 23 is fixed between the rear sides of the piston rods of the left and right suction cylinders 21. The electric slide rail 22 is fixed to the lower side inside the water tank 1. The electric slide rail 22 is fixed to the moving block 23 through a slider.

[0038] When the worker connects the inlet and outlet of the AEM stack to the connecting valve 12 and liquid pump 13 on the water tank 1 respectively through two external pipes and opens the connecting valve 12, the liquid pump 13 and the electric slide rail 22 can also be started. The electric slide rail 22 will drive the moving block 23 and the piston rod of the suction cylinder 21 to move forward, thereby injecting the electrolyte in the cylinder of the suction cylinder 21 into the water tank 1 through the infusion pipe 2. Since the electrolyte in the water tank 1 is basically overflowing, part of the injected electrolyte will enter the front external pipe through the connecting valve 12 and fill the inside of the pipe, while the other part of the electrolyte will enter the rear external pipe under the action of the liquid pump 13 and fill the inside of the pipe. After opening the AEM stack and other components, the water tank 1 and the external connecting pipes Only after the electrolyte in the channel begins to circulate will the test be completed. After the test is completed, the worker can first shut down the AEM stack and stop the electrolyte circulation. Then, the liquid pump 13 and the electric slide rail 22 will be started. The liquid pump 13 will pump the electrolyte in the external pipe at the rear back to the water tank 1. The electric slide rail 22 will drive the piston rod of the moving block 23 and the suction cylinder 21 to move backward and reset. Through the infusion pipe 2, the excess electrolyte in the water tank 1 and the electrolyte in the external pipe at the front will be pumped back to the suction cylinder 21. The external pipe will then become deflated. Finally, the connecting valve 12 will be closed to prevent leakage. In this way, the electrolyte in the external connecting pipe can be recovered after a single test is completed, thereby avoiding leakage and resource waste caused by the external connecting pipe after it is disconnected from the AEM stack.

[0039] like Figure 3 and Figure 8 As shown, it also includes a guiding mechanism, which is disposed on the temperature-conducting rotating blade 14. The guiding mechanism includes a guide frame 3, a baffle 31 and a conduit 32. The guide frame 3 is rotatably connected to the inside of the temperature-conducting rotating blade 14. The lower half of the connector 18 is fixedly connected to the baffle 31, and the baffle 31 is rotatably connected to the upper half of the connector 18. Three conduits 32 are fixedly connected and communicated between the baffle 31 and the guide frame 3.

[0040] When the gas circulates counterclockwise within the connecting pipe 16, connector 18, and temperature-conducting vane 14, since the connector 18 is divided into front and rear parts by the baffle 31, the gas entering the rear side of the connector 18 through the connecting pipe 16 can only move upward along the ventilation groove in the middle of the guide frame 3, and then enter the temperature-conducting vane 14 from the upper part of the guide frame 3 to replace the gas inside the temperature-conducting vane 14. The replaced gas will enter the front side of the connector 18 from the conduit 32 connected to the lower part of the guide frame 3 and continue to flow counterclockwise along the connecting pipe 16. In this way, the flow of gas can be guided and the gas inside the temperature-conducting vane 14 can be fully replaced, thereby avoiding poor temperature regulation effect of the temperature-conducting vane 14 due to low gas replacement rate.

[0041] like Figure 9 and Figure 10 As shown, it also includes an auxiliary mechanism, which is set in the water tank 1. The auxiliary mechanism includes a hollow slowing block 4 and a guide pipe 41. The guide pipe 41 is fixed to the right side of the water tank 1. The guide pipe 41 is fixed to and connected to the connecting pipe 16. A one-way valve is fixed to the front of the guide pipe 41. The hollow slowing blocks 4 are evenly distributed and fixed to and connected to the left side of the guide pipe 41.

[0042] When the gas circulates counterclockwise within the connecting pipe 16, connector 18, and temperature-conducting vane 14, due to the one-way valve installed on the guide pipe 41, some of the gas in the connecting pipe 16 will first enter the guide pipe 41 and the hollow damping block 4 during the circulation process, and then flow back from the guide pipe 41 to the connecting pipe 16 and continue to circulate. The hook-shaped arc-shaped hollow damping block 4 can break the liquid flow and hinder the electrolyte flow to a certain extent. The hollow damping block 4 and the guide pipe 41 can also directly contact the electrolyte and cool and lower the electrolyte with the help of the gas flowing inside. This can further increase the contact area between the temperature regulating component and the electrolyte and prolong the residence time of the electrolyte in the water tank 1, thereby improving the temperature regulation effect.

[0043] like Figure 11 and Figure 12 As shown, it also includes a delay mechanism, which is installed in the water tank 1. The delay mechanism includes a mounting frame 5 and a blocking wheel 51. Four mounting frames 5 are staggered and fixed to the rear side of the inside of the water tank 1. Two blocking wheels 51 are rotatably connected to the top or bottom of the mounting frame 5.

[0044] like Figure 11 and Figure 12 As shown, the blocking wheel 51 is hollow inside and has oblique holes that are evenly distributed around its circumference.

[0045] When the electrolyte flows from the pump 13 into the rear of the water tank 1 and flows forward, the electrolyte will contact the blocking wheel 51 and pass through its inclined hole. Since the inclined hole is set at an angle, the electrolyte will cause a certain impact on the blocking wheel 51 when passing through the inclined hole and make it rotate. This will consume the kinetic energy of the electrolyte and slow down the flow rate of the electrolyte, thereby prolonging the residence time of the electrolyte in the water tank 1 and giving components such as the temperature-conducting vane 14 sufficient time to cool or heat the electrolyte.

[0046] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in the present invention should be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.

Claims

1. A water tank for an AEM fuel cell stack test activation platform with heat function, characterized in that: The system includes a water tank (1), a protective shell (11), connecting valves (12), a liquid pump (13), a temperature-conducting impeller (14), an insulation cylinder (15), a connecting pipe (16), an air pump (17), a connector (18), and a temperature control assembly (19). The water tank (1) is fixedly connected to the protective shell (11). The water tank (1) is equipped with a pair of connecting valves (12). The water tank (1) is fixedly connected to and connected to the liquid pump (13). The water tank (1) is rotatably connected to longitudinally distributed temperature-conducting impellers (14). The water tank (1) is fixedly connected to the insulation cylinder (15). The insulation cylinder (15) is fixedly connected to... The connecting pipe (16) and the insulation cylinder (15) are equipped with temperature control components (19). The water tank (1) is equipped with longitudinally distributed connectors (18). The connectors (18) are divided into two parts that rotate and connect with each other. The upper part of the connector (18) is fixed and connected to the temperature-conducting rotating blade (14). The lower part of the connector (18) is fixed and connected to the water tank (1). The connecting pipe (16) is fixed and connected to the lower part of the longitudinally distributed connector (18). The water tank (1) is fixed with an air pump (17). The air pump (17) is fixed and connected to the connecting pipe (16). The water tank (1) is fixed with arrow-shaped abutments that are arranged longitudinally in a staggered pattern; The interior of the temperature-conducting rotating blade (14) is hollow.

2. The AEM stack test activation platform water tank with heat function according to claim 1, characterized in that: It also includes a recycling mechanism, which is located in the water tank (1). The recycling mechanism includes an infusion tube (2), a suction cylinder (21), an electric slide rail (22), and a moving block (23). The pairs of suction cylinders (21) are fixed to the water tank (1). The body of the suction cylinder (21) is fixed to the water tank (1) and connected to the infusion tube (2). The piston rods of the pairs of suction cylinders (21) are fixed to the moving block (23). The water tank (1) is fixed to the electric slide rail (22). The electric slide rail (22) is fixed to the moving block (23) through a slider.

3. The AEM stack test activation platform water tank with heat function according to claim 2, characterized in that: It also includes a guiding mechanism, which is set on the temperature-conducting vane (14). The guiding mechanism includes a guide frame (3), a baffle (31) and a guide tube (32). The guide frame (3) is rotatably connected to the temperature-conducting vane (14). The lower half of the connector (18) is fixedly connected to the baffle (31). The baffle (31) is rotatably connected to the upper half of the connector (18). Three guide tubes (32) are fixedly connected and connected between the baffle (31) and the guide frame (3).

4. The AEM stack test activation platform water tank with heat function according to claim 3, characterized in that: It also includes an auxiliary mechanism, which is set in the water tank (1). The auxiliary mechanism includes a hollow slowing block (4) and a guide pipe (41). The guide pipe (41) is fixed to the water tank (1). The guide pipe (41) is fixed to and connected to the connecting pipe (16). A one-way valve is fixed to the guide pipe (41). The guide pipe (41) is fixed to and connected to the evenly distributed hollow slowing blocks (4).

5. The AEM stack test activation platform water tank with heat function according to claim 4, characterized in that: It also includes a delay mechanism, which is set in the water tank (1). The delay mechanism includes a mounting frame (5) and a blocking wheel (51). The mounting frames (5) are fixed to the water tank (1) in pairs and staggered arrangement. The mounting frames (5) are rotatably connected to the blocking wheels (51).

6. The AEM stack test activation platform water tank with heat function according to claim 5, characterized in that: Among the obstructions The wheel (51) is hollow inside and has oblique holes that are evenly distributed around its circumference.

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