Hydrogen fuel cell production and processing equipment

Abstract

The utility model discloses a kind of hydrogen fuel cell production and processing equipment, it is related to hydrogen fuel cell processing technical field, including bottom box, the middle part of bottom box top end is equipped with clamping groove, vertical cylinder is penetrated in the four corners of bottom box top end, the top of bottom box is equipped with top frame, the middle part of top frame is penetrated with outer cover cylinder, the inside of outer cover cylinder is equipped with inner clamping cylinder, the inner wall of inner clamping cylinder is vertically arranged with several half cylinders, the top of the two side walls of inner clamping cylinder is equipped with lug plate, the four corners of bottom box inside are equipped with electric push rod, the inside of bottom box is provided with gas storage warehouse, one side of gas storage warehouse is provided with circulating pressurizing gas pump. The utility model is provided with a series of structures, to simplify the operation step of hydrogen fuel cell in leakage test, save the time required for hydrogen fuel cell leakage test, to facilitate quickly find the leakage point position of hydrogen fuel cell after leakage test.

Description

Technical Field

[0001] This utility model relates to the field of hydrogen fuel cell processing technology, specifically to a hydrogen fuel cell production and processing equipment. Background Technology

[0002] A hydrogen fuel cell is a power generation device that directly converts the chemical energy of hydrogen and oxygen into electrical energy. The basic principle is the reverse reaction of water electrolysis, supplying hydrogen and oxygen to the anode and cathode respectively. Hydrogen fuel cells rely on hydrogen as their core energy source, and it is necessary to ensure that the hydrogen in the fuel cell does not easily leak inside the cell. Therefore, leak tests are required during the production and processing of hydrogen fuel cells to reduce the probability of leakage.

[0003] However, existing hydrogen fuel cell production and processing equipment typically involves surrounding each cell with an open cylinder to test for leaks. This requires vacuuming to remove interfering gases and then observing the gaps between the cylinders for bubbles. This process is cumbersome and time-consuming. Furthermore, because bubbles are small and burst quickly when they escape from the liquid, they leave no trace, making it difficult to quickly locate leaks by observing bubbles. This hinders the rapid identification of leak points after a leak test. Utility Model Content

[0004] The purpose of this invention is to provide a hydrogen fuel cell production and processing equipment to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a hydrogen fuel cell production and processing equipment, including a base box, a slot is provided in the middle of the top of the base box, vertical cylinders are passed through the four corners of the top of the base box, a top frame is provided on the top of the base box, an outer cover cylinder is passed through the middle of the top frame, an inner clamping cylinder is provided on the inner side of the outer cover cylinder, a plurality of semi-cylinders are arranged vertically on the inner wall of the inner clamping cylinder, ear plates are provided on the top of the two side walls of the inner clamping cylinder, electric push rods are provided at the four corners of the inner side of the base box, a gas storage chamber is provided inside the base box, a circulating pressurization pump is provided on one side of the gas storage chamber, a connecting pipe is passed through one side wall of the gas storage chamber, and a hydrogen return pipe is passed through the other side wall of the gas storage chamber.

[0006] Preferably, the bottom end of the outer cover cylinder has an opening, and the bottom of the inner walls on both sides of the opening is fixedly connected to a base plate. The inner clamping cylinder is slidably connected to the outer cover cylinder through the base plate.

[0007] Preferably, a sealing strip is provided at the top of the bottom box, and the sealing strip is in contact with the bottom end face of the outer cover cylinder.

[0008] Preferably, the output end of the electric push rod is movably connected to the vertical cylinder, the top end of the output end of the electric push rod is fixedly connected to the bottom end of the top frame, and the outer cover cylinder is movably connected to the bottom box through the top frame.

[0009] Preferably, a first solenoid valve is provided at the connection between the connecting pipe and the gas storage chamber, and a second solenoid valve is provided at the connection between the hydrogen outlet pipe and the gas storage chamber.

[0010] Preferably, the end of the connecting pipe away from the gas storage chamber is connected to the outlet of the circulating pressurizing gas pump, and the inlet of the circulating pressurizing gas pump is fitted with a hydrogen return pipe.

[0011] Preferably, both the hydrogen outlet pipe and the hydrogen return pipe extend through the top of the base box, and both the top of the hydrogen outlet pipe and the hydrogen return pipe are equipped with connectors for connecting to the hydrogen fuel cell.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] 1. This hydrogen fuel cell production and processing equipment, through its top frame, electric push rod, outer cover, slot, and vertical cylinder, simplifies the operation steps for leak testing of hydrogen fuel cells by placing the hydrogen fuel cell to be tested in the slot of the bottom box when a leak test is required. Then, the electric push rod is activated to drive the top frame, outer cover, and inner slot to descend, so that the hydrogen fuel cell unit is covered by the semi-cylindrical shield on the inner slot. This saves time required for leak testing of hydrogen fuel cells.

[0014] 2. This hydrogen fuel cell production and processing equipment, through the setting of an inner clasp, a semi-cylinder, a base plate, and an ear plate, allows hydrogen gas leaking from the outer wall of the battery cell to be directly sprayed through the gap onto the surface of the semi-cylinder with a color-changing hydrogen-sensitive material after the inner clasp is placed on the outer wall of the battery cell and hydrogen gas is introduced for testing. This causes the surface of the semi-cylinder to change color upon contact with the leaking hydrogen gas. At the same time, after the semi-cylinder is removed along with the inner clasp, the leak location corresponding to the battery cell can be found based on the position of the color change on the surface of the semi-cylinder, thus facilitating the rapid location of the leak point of the hydrogen fuel cell after the leak test. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the top frame and bottom box structure of this utility model;

[0017] Figure 3 This is a schematic diagram of the gas storage chamber and circulating pressurization pump of this utility model;

[0018] Figure 4 This is a schematic diagram of the inner sleeve and outer cover of this utility model.

[0019] In the diagram: 1. Top frame; 2. Inner cylinder; 3. Semi-cylinder; 4. Outer cover cylinder; 5. Vertical cylinder; 6. Hydrogen return pipe; 7. Sealing strip; 8. Bottom box; 9. Slot; 10. Hydrogen outlet pipe; 11. Electric push rod; 12. Circulating pressurization pump; 13. First solenoid valve; 14. Connecting pipe; 15. Gas storage chamber; 16. Second solenoid valve; 17. Opening; 18. Base plate; 19. Ear plate. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0022] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," and "connected," etc., should be interpreted broadly. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0023] like Figures 1 to 4As shown, the hydrogen fuel cell production and processing equipment in this embodiment includes a base box 8. A slot 9 is provided in the middle of the top of the base box 8. Vertical cylinders 5 penetrate through the four corners of the top of the base box 8. A top frame 1 is provided on the top of the base box 8. An outer cover cylinder 4 penetrates through the middle of the top frame 1. An inner cover cylinder 2 is provided on the inner side of the outer cover cylinder 4. Several semi-cylinders 3 are arranged vertically on the inner wall of the inner cover cylinder 2. Ear plates 19 are provided on the top of the two side walls of the inner cover cylinder 2. Electric push rods 11 are provided at the four corners of the inner side of the base box 8. A gas storage chamber 15 is provided inside the base box 8. A circulating pressurization pump 12 is provided on one side of the gas storage chamber 15. A connecting pipe 14 penetrates through one side wall of the gas storage chamber 15. A hydrogen return pipe 6 penetrates through the other side wall of the gas storage chamber 15.

[0024] Specifically, the bottom box 8 protects the gas storage chamber 15 and supports the hydrogen fuel cell under test. The slot 9 ensures that the hydrogen fuel cell placed on the bottom box 8 is covered when the outer cover 4 falls. The vertical cylinder 5 limits the descent of the electric push rod 11, allowing the top frame 1 to cover the outer cover 4 and the inner clamping cylinder 2 on the outer wall of the hydrogen fuel cell unit. The top frame 1 supports the outer cover 4, and the inner clamping cylinder 2 supports the semi-cylinder 3, allowing it to adhere to the outer wall of the battery unit. The surface of the semi-cylinder 3 is covered with a color-changing hydrogen-sensitive material film, mainly composed of graphene oxide, platinum oxide, and tungsten trioxide. Upon contact with hydrogen, it changes from yellow to blue, thus leaving a color mark when the battery unit leaks. The ear plate 19 facilitates the quick location of leaks in individual battery cells. It allows the inner sleeve 2 to be pulled upwards from the top of the outer casing 4, thus separating the upper cylindrical section 3 of the inner sleeve 2 from the outer casing 4. The electric push rod 11 pushes the top frame 1 to slide up and down on the top of the base box 8, facilitating the raising and lowering of the outer casing 4 and the placement of the hydrogen fuel cell for subsequent testing. The gas storage chamber 15 is filled with high-concentration hydrogen gas for testing the airtightness of the hydrogen fuel cell. The circulating pressurization pump 12 allows the hydrogen gas in the gas storage chamber 15 to smoothly enter the hydrogen outlet pipe 10 and then into the interior of the hydrogen fuel cell, thus enabling leak testing of the hydrogen fuel cell. The hydrogen return pipe 6 allows the tested hydrogen gas to flow back into the gas storage chamber 15 for hydrogen recycling.

[0025] Furthermore, the bottom end of the outer cover cylinder 4 is provided with an opening 17, and the bottom of the inner walls on both sides of the opening 17 is fixedly connected with a base plate 18. The inner clamping cylinder 2 is slidably connected to the outer cover cylinder 4 through the base plate 18, so that the inner clamping cylinder 2 can remain stable inside the outer cover cylinder 4, thereby facilitating the synchronous lifting and lowering of the inner clamping cylinder 2 with the outer cover cylinder 4.

[0026] Furthermore, a sealing strip 7 is provided at the top of the bottom box 8. The sealing strip 7 is in contact with the bottom end face of the outer cover cylinder 4. The function of the sealing strip 7 is to make the bottom of the outer cover cylinder 4 fit with the bottom of the bottom box 8, thereby helping to maintain the fit of the outer cover cylinder 4 at the top of the bottom box 8.

[0027] Furthermore, the output end of the electric push rod 11 is movably connected to the vertical cylinder 5, and the top end of the output end of the electric push rod 11 is fixedly connected to the bottom end of the top frame 1. The outer cover cylinder 4 is movably connected to the bottom box 8 through the top frame 1. The function of the outer cover cylinder 4 is to drive the inner clamping cylinder 2 so that the inner clamping cylinder 2 can be placed on the hydrogen fuel cell under test, thereby realizing the leakage test of the hydrogen fuel cell.

[0028] Furthermore, a first solenoid valve 13 is provided at the connection between the connecting pipe 14 and the gas storage chamber 15, and a second solenoid valve 16 is provided at the connection between the hydrogen outlet pipe 10 and the gas storage chamber 15. This allows the gas storage chamber 15 to be in a closed state when not in use, thereby reducing the leakage of hydrogen from the equipment and facilitating the control of hydrogen flow.

[0029] Furthermore, the end of the connecting pipe 14 away from the gas storage chamber 15 is connected to the outlet of the circulating pressurizing gas pump 12. The inlet of the circulating pressurizing gas pump 12 is fitted with a hydrogen return pipe 6, which enables the circulating pressurizing gas pump 12 to pump hydrogen into the connecting pipe 14, while facilitating the return of hydrogen to the gas storage chamber 15.

[0030] Furthermore, both the hydrogen outlet pipe 10 and the hydrogen return pipe 6 extend through the top of the bottom box 8. The top of both the hydrogen outlet pipe 10 and the hydrogen return pipe 6 are equipped with connectors for connecting to the hydrogen fuel cell, so that the gas storage chamber 15 can be connected to the hydrogen passage inside the hydrogen fuel cell under test, thereby realizing the leakage test of the battery.

[0031] The usage method of this embodiment is as follows: When using this hydrogen fuel cell production and processing equipment, the equipment needs to be connected to an external power source first. Then, the hydrogen fuel cell unit to be tested is placed on the slot in the bottom box 8. Then, the four electric push rods 11 inside the bottom box 8 are lowered by the synchronous controller. At this time, the top frame 1, which is connected to the top of the output end of the electric push rod 11, will drive the outer cover cylinder 4 and the inner clamping cylinder 2 to descend under the drive of the electric push rod 11, covering the battery unit placed in the slot. When the bottom end face of the top frame 1 is in contact with the top end face of the vertical cylinder 5, the bottom end face of the outer cover cylinder 4 will be in contact with the top surface of the sealing strip 7 on the bottom box 8. At the same time, the semi-cylinder 3 on the inner clamping cylinder 2 will be in contact with the outer wall of the battery unit. Then, the hydrogen outlet pipe 10 and the hydrogen return pipe 6 need to be connected to the venting interface on the battery unit. Then, the circulating pressurization pump 12 is started and the... The first solenoid valve 13 and the second solenoid valve 16 are activated, causing the circulating pressurized air pump 12 to pump hydrogen from the gas storage chamber 15 into the hydrogen outlet pipe 10. Then, the hydrogen will enter the battery cell under test through the hydrogen outlet pipe 10, and then flow back to the circulating pressurized air pump 12 through the hydrogen return pipe 6, and then return to the gas storage chamber 15 through the connecting pipe 14. If hydrogen leaks out through the gaps in the outer wall of the battery cell during the flow of hydrogen in the battery cell, the leaked hydrogen will come into contact with the surface of the semi-cylinder 3, causing the color of the surface of the semi-cylinder 3 to change. After the test is completed, the inner clamp 2 can be removed from the outer cover 4 through the ear plate 19, and then the color change of the surface of the semi-cylinder 3 on the inner clamp 2 can be observed. The location of the color change on the surface of the semi-cylinder 3 and the corresponding location on the battery cell can be found, thus finding the leakage point of the battery cell.

[0032] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A hydrogen fuel cell production and processing equipment, comprising a base box (8), characterized in that: The bottom box (8) has a slot (9) in the middle of the top. Vertical cylinders (5) pass through the four corners of the top of the bottom box (8). The bottom box (8) has a top frame (1) at the top. An outer cover cylinder (4) passes through the middle of the top frame (1). An inner cylinder (2) is provided on the inner side of the outer cover cylinder (4). Several semi-cylinders (3) are arranged vertically on the inner wall of the inner cylinder (2). Ear plates (19) are provided on the top of the two side walls of the inner cylinder (2). Electric push rods (11) are provided at the four corners of the inner side of the bottom box (8). A gas storage chamber (15) is provided inside the bottom box (8). A circulating pressurization pump (12) is provided on one side of the gas storage chamber (15). A connecting pipe (14) passes through one side wall of the gas storage chamber (15). A hydrogen return pipe (6) passes through the other side wall of the gas storage chamber (15). A hydrogen outlet pipe (10) is connected to the gas storage chamber (15). A first solenoid valve (13) is provided at the connection between the connecting pipe (14) and the gas storage chamber (15), and a second solenoid valve (16) is provided at the connection between the hydrogen outlet pipe (10) and the gas storage chamber (15).

2. The hydrogen fuel cell production and processing equipment according to claim 1, characterized in that: The bottom end of the outer cover cylinder (4) is provided with an opening (17), and the bottom of the inner walls on both sides of the opening (17) is fixedly connected with a base plate (18). The inner clamping cylinder (2) is slidably connected to the outer cover cylinder (4) through the base plate (18).

3. The hydrogen fuel cell production and processing equipment according to claim 1, characterized in that: The top of the bottom box (8) is provided with a sealing strip (7), which is in contact with the bottom end face of the outer cover (4).

4. The hydrogen fuel cell production and processing equipment according to claim 1, characterized in that: The output end of the electric push rod (11) is movably inserted into the vertical cylinder (5), the top end of the output end of the electric push rod (11) is fixedly connected to the bottom end of the top frame (1), and the outer cover cylinder (4) is movably covered and connected to the bottom box (8) through the top frame (1).

5. The hydrogen fuel cell production and processing equipment according to claim 1, characterized in that: The end of the connecting pipe (14) away from the gas storage chamber (15) is connected to the outlet of the circulating pressurizing gas pump (12), and the inlet of the circulating pressurizing gas pump (12) is fitted with a hydrogen return pipe (6).

6. The hydrogen fuel cell production and processing equipment according to claim 5, characterized in that: The hydrogen outlet pipe (10) and the hydrogen return pipe (6) both extend through the top of the bottom box (8), and the top of the hydrogen outlet pipe (10) and the hydrogen return pipe (6) are both equipped with connectors for connecting to the hydrogen fuel cell.

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