Electric pile heat management device

Abstract

The utility model relates to the technical field of electrochemical testing, in particular to an electric pile heat management device. A hot box and a supporting frame are installed on a working table plate of the rack, the electric pile is placed in a hearth of the hot box, a pressure rod is inserted into the hot box, and the lower end of the pressure rod abuts against the electric pile. A cooling system and a pressure system are installed on the supporting frame, the cooling system is connected with the pressure system and used for cooling the pressure system, and the pressure system is located above the pressure rod. The galvanic pile is placed in the hot box, pressure is applied to the galvanic pile through the pressure system, and the pressure rod is cooled through the cooling system, so that it is guaranteed that the test temperature is accurately controlled in the test process, and then the accuracy and repeatability of the test result are improved.

Description

Technical Field

[0001] This utility model relates to the field of electrochemical testing technology, and in particular to a fuel cell stack thermal management device. Background Technology

[0002] Solid oxide cells (SOCs) are devices that directly convert chemical energy into electrical energy. They mainly consist of a solid electrolyte and components such as a metal anode and cathode. SOCs offer advantages such as high energy conversion efficiency, wide fuel adaptability, and environmental friendliness, and are widely used in power generation and energy storage. However, the performance and lifespan of SOCs are affected by many factors, such as the ion conductivity of the electrolyte, the catalytic activity of the electrode materials, and the operating temperature. Therefore, accurate testing and analysis of SOCs to evaluate their performance and lifespan are crucial for promoting the application and development of SOC technology.

[0003] However, existing fuel cell stack thermal management devices cannot accurately control the test environment during testing, which affects the accuracy and repeatability of test results. Summary of the Invention

[0004] The technical problem to be solved by this utility model is: in order to solve the problems existing in the prior art in the background art, to provide a fuel cell stack thermal management device that can accurately control the test environment, thereby improving the accuracy and repeatability of test results.

[0005] The technical solution adopted by this utility model to solve its technical problem is: a fuel cell stack thermal management device, including a frame, a heat box and a support frame are installed on the workbench of the frame, the fuel cell stack is placed in the furnace of the heat box, a pressure rod is inserted into the heat box, and the lower end of the pressure rod abuts against the fuel cell stack; a cooling system and a pressure system are installed on the support frame, the cooling system is connected to the pressure system to cool the pressure system, and the pressure system is located above the pressure rod.

[0006] Furthermore, the pressure system includes a servo mechanism support and a servo electric cylinder. A guide mounting seat is installed on the servo mechanism support, and a cooling water column is installed on the guide mounting seat. The cooling water column is connected to the cooling system.

[0007] A servo electric cylinder is mounted on the servo mechanism support base. A pressure sensor is installed at the connection joint of the servo electric cylinder, and a spring is installed between the cooling water column and the pressure sensor.

[0008] Furthermore, a spring limiting block is fitted onto the lower end of the spring.

[0009] Furthermore, the pressure rod is either a hollow structure or a solid structure, and there is a gap between the top of the pressure rod and the cooling water column.

[0010] Furthermore, the hot box includes a cylindrical body and a lower cover plate. One end of the cylindrical body is open, and the top of the cylindrical body is provided with a round hole for inserting a pressure rod. A furnace chamber lower cover plate is installed on the lower cover plate of the hot box. The cylindrical body is covered on the lower cover plate of the hot box, and the furnace chamber lower cover plate is embedded in the open end of the cylindrical body to form a furnace chamber. The electric stack is placed on the furnace chamber lower cover plate.

[0011] Furthermore, the cylinder includes a left section and a right section, which are joined together as a whole by a movable hinge. Each section has an arc-shaped notch at the top edge, and the round hole is formed by joining two arc-shaped notches.

[0012] Each component includes a hot box shell and a furnace chamber. The furnace chamber is installed inside the hot box shell, and heating wires are installed on the inner surface of the furnace chamber. The two furnace chambers are joined together to form a furnace chamber. Furnace chamber pressure plates are provided on both ends of the hot box shell.

[0013] Furthermore, a hot box support column is provided between the support frame and the machine frame, and a movable hinge is installed on the hot box support column.

[0014] Furthermore, the temperature control range of the furnace chamber formed by the assembled furnace lining is room temperature to 800℃, and the temperature control range of the cooling system is 5℃ to 35℃.

[0015] Furthermore, a lower support block for the fuel cell stack is installed on the lower cover plate of the furnace chamber, the fuel cell stack is placed on the lower support block, and an upper support block for the fuel cell stack is provided on the fuel cell stack, with the lower end of the pressure rod abutting against the upper support block of the fuel cell stack.

[0016] Furthermore, the fuel cell stack is connected to several gas inlet pipes and gas outlet pipes.

[0017] The beneficial effects of this invention are as follows: This invention places the fuel cell stack in a hot box and applies pressure to the fuel cell stack through a pressure system, while a cooling system cools the pressure rod, thereby ensuring precise control of the test temperature during the test process, and thus improving the accuracy and repeatability of the test results. Attached Figure Description

[0018] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0019] Figure 1 This is a schematic diagram of the structure of this utility model;

[0020] Figure 2 This is a utility model Figure 1 A schematic diagram of the structure after removing the heating box;

[0021] Figure 3 This is a utility model Figure 1 A sectional view;

[0022] Figure 4 This is a schematic diagram of the cooling system and pressure system of this utility model;

[0023] In the diagram: 7. Cooling system, 12. Frame, 13. Pressure rod, 14. Support frame, 15. Guide mount, D101. Fuel cell stack.

[0024] RX03. Hot box shell, RX04. Furnace chamber pressure plate, RX05. Furnace chamber, RX07. Hot box lower cover plate, RX08. Furnace chamber lower cover plate, RX10. Furnace stack lower support block, RX11. Furnace stack upper support block, RX12. Movable hinge, RX13. Hot box support column, RX16. Pressure sensor, RX20. Servo electric cylinder, RX21. Servo mechanism support seat, RX22. Spring, RX23. Spring limit block, RX24. Cooling water column. Detailed Implementation

[0025] The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, illustrating only the basic structure of the present invention, and therefore only show the components relevant to the present invention.

[0026] like Figures 1-4 The device for thermal management of fuel cell stacks shown includes a frame 12, on which a heat box and a support frame 14 are mounted. The fuel cell stack D101 is placed inside the furnace of the heat box, and a pressure rod 13 is inserted into the heat box, with the lower end of the pressure rod 13 abutting against the fuel cell stack D101.

[0027] A cooling system 7 and a pressure system are installed on the support frame 14. The cooling system 7 is connected to the pressure system to cool the pressure system. The pressure system is located above the pressure rod 13.

[0028] like Figure 4 As shown, the pressure system includes a servo mechanism support RX21 and a servo electric cylinder RX20. A guide mounting seat 15 is installed on the servo mechanism support RX21, and a cooling water column RX24 is installed on the guide mounting seat 15. The cooling water column RX24 is connected to the cooling system 7.

[0029] A servo electric cylinder RX20 is mounted on the servo mechanism support RX21. A pressure sensor RX16 is installed at the connection joint of the servo electric cylinder RX20. A spring RX22 is provided between the cooling water column RX24 and the pressure sensor RX16. The spring RX22 is in the open state when not in operation. When in operation, it provides a buffer force for the pressure sensor RX16 to prevent damage to the pressure sensor RX16 during the pressing process.

[0030] A spring limiting block RX23 is fitted at the lower end of the spring RX22 to limit the spacing of the cooling water column RX24 as it is pressed down, preventing overvoltage damage to the fuel cell stack D101.

[0031] The pressure rod 13 can be a hollow or solid structure, depending on the actual needs. As long as the pressure rod 13 can withstand pressure under heat, there is a gap between the top of the pressure rod 13 and the cooling water column RX24.

[0032] like Figures 2-3 As shown, the hot box includes a cylindrical body and a lower cover plate RX07. One end of the cylindrical body is open, and the top of the cylindrical body is provided with a round hole for the insertion of the pressure rod 13. A furnace chamber lower cover plate RX08 is installed on the lower cover plate RX07. The cylindrical body is covered on the lower cover plate RX07, and the furnace chamber lower cover plate RX08 is embedded in the open end of the cylindrical body to form a furnace chamber. The fuel cell stack D101 is placed on the furnace chamber lower cover plate RX08.

[0033] like Figures 2-3 The cylindrical body shown includes a left section and a right section, which are joined together as a whole by a movable hinge RX12. Each section has an arc-shaped notch at the top edge, and the round hole is formed by joining two arc-shaped notches.

[0034] Each component includes a hot box shell RX03 and a furnace lining RX05. The furnace lining RX05 is installed inside the hot box shell RX03. Heating wires are installed on the inner surface of the furnace lining RX05. The two furnace linings RX05 are joined together to form a furnace chamber. Furnace lining pressure plates RX04 are provided on both end faces of the hot box shell RX03.

[0035] like Figure 1 As shown, a hot box support column RX13 is provided between the support frame 14 and the frame 12. A movable hinge RX12 is installed on the hot box support column RX13, which means that the two parts of the hot box can be opened or closed around the hot box support column RX13.

[0036] The temperature control range of the furnace chamber formed by the assembled furnace lining RX05 is room temperature to 800℃, and the temperature control range of the cooling system 7 is 5℃ to 35℃.

[0037] A lower support block RX10 for the fuel cell stack is installed on the lower cover plate RX08 of the furnace chamber. The fuel cell stack D101 is placed on the lower support block RX10. An upper support block RX11 for the fuel cell stack is provided on the fuel cell stack D101. The lower end of the pressure rod 13 abuts against the upper support block RX11.

[0038] The fuel cell stack D101 has several gas inlet pipes and gas outlet pipes connected inside. There are two gas inlet pipes and two gas outlet pipes.

[0039] Work process:

[0040] Step 1: Open the hot box, place the fuel cell stack D101 on the lower support block RX10 of the fuel cell stack, and close the hot box;

[0041] Step 2: The servo electric cylinder RX20 is started, driving the cooling water column RX24 to press down until it contacts the pressure rod 13, pressing down to the set pressure, and pressing the fuel cell stack D101 tightly from above;

[0042] Step 3: Before testing the battery stack, set the heating temperature and rate. The heating rate should not be too fast to prevent the battery cells from cracking. At the same time as heating, the cooling system 7 is started and connected to the cooling water column RX24. The cooling water column RX24 cools the pressure rod 13, thereby protecting the components above the cooling water column RX24.

[0043] Step 4: After the fuel cell stack has finished heating up, a certain amount of gas is introduced into the gas inlet pipe to reduce, discharge or hydrolyze the fuel cell stack D101.

[0044] Step 5: After completion, exhaust gas is discharged through the gas outlet pipe and properly discharged.

[0045] Based on the above-described preferred embodiments of this utility model, and through the foregoing description, those skilled in the art can make various changes and modifications without departing from the technical concept of this utility model. The technical scope of this utility model is not limited to the contents of the specification, but must be determined according to the scope of the claims.

Claims

1. A thermal management device for an electric stack, characterized in that: Includes a frame (12), on which a heat box and a support frame (14) are installed. The fuel cell stack (D101) is placed in the furnace of the heat box. A pressure rod (13) is inserted into the heat box, and the lower end of the pressure rod (13) abuts against the fuel cell stack (D101). A cooling system (7) and a pressure system are installed on the support frame (14). The cooling system (7) is connected to the pressure system to cool the pressure system. The pressure system is located above the pressure rod (13).

2. The fuel cell stack thermal management device according to claim 1, characterized in that: The pressure system includes a servo mechanism support (RX21) and a servo electric cylinder (RX20). A guide mounting seat (15) is installed on the servo mechanism support (RX21), and a cooling water column (RX24) is installed on the guide mounting seat (15). The cooling water column (RX24) is connected to the cooling system (7). A servo electric cylinder (RX20) is mounted on the servo mechanism support base (RX21). A pressure sensor (RX16) is installed at the connection joint of the servo electric cylinder (RX20). A spring (RX22) is provided between the cooling water column (RX24) and the pressure sensor (RX16).

3. The fuel cell stack thermal management device according to claim 2, characterized in that: The lower end of the spring (RX22) is fitted with a spring limiting block (RX23).

4. The fuel cell stack thermal management device according to claim 1, characterized in that: The pressure rod (13) is a hollow pressure rod or a solid pressure rod, and there is a gap between the top of the pressure rod (13) and the cooling water column (RX24).

5. The fuel cell stack thermal management device according to claim 1, characterized in that: The hot box includes a cylindrical body and a lower cover plate (RX07). One end of the cylindrical body is open, and the top of the cylindrical body is provided with a round hole for the insertion of a pressure rod (13). A furnace chamber lower cover plate (RX08) is installed on the lower cover plate (RX07). The cylindrical body is covered on the lower cover plate (RX07), and the furnace chamber lower cover plate (RX08) is embedded in the open end of the cylindrical body to form a furnace chamber. The fuel cell stack (D101) is placed on the furnace chamber lower cover plate (RX08).

6. The fuel cell stack thermal management device according to claim 5, characterized in that: The cylindrical body includes a left split and a right split, which are joined together as a whole by a movable hinge (RX12). Each split has an arc-shaped notch at the top edge, and the round hole is formed by joining two arc-shaped notches. Each component includes a hot box shell (RX03) and a furnace liner (RX05). The furnace liner (RX05) is installed inside the hot box shell (RX03). Heating wires are installed on the inner surface of the furnace liner (RX05). The two furnace liners (RX05) are joined together to form a furnace chamber. Furnace liner pressure plates (RX04) are provided on both end faces of the hot box shell (RX03).

7. The fuel cell stack thermal management device according to claim 6, characterized in that: A hot box support column (RX13) is provided between the support frame (14) and the frame (12), and a movable hinge (RX12) is installed on the hot box support column (RX13).

8. The fuel cell stack thermal management device according to claim 6, characterized in that: The temperature control range of the furnace chamber formed by the assembled furnace lining (RX05) is room temperature to 800℃, and the temperature control range of the cooling system (7) is 5℃ to 35℃.

9. The fuel cell stack thermal management device according to claim 5, characterized in that: The furnace bottom cover plate (RX08) is equipped with a lower support block (RX10) for the fuel cell stack. The fuel cell stack (D101) is placed on the lower support block (RX10). The fuel cell stack (D101) is provided with an upper support block (RX11). The lower end of the pressure rod (13) abuts against the upper support block (RX11).

10. The fuel cell stack thermal management device according to claim 1, characterized in that: The fuel cell stack (D101) is internally connected to several gas inlet pipes and gas outlet pipes.

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