Valve assembly of hydrogen storage device

Abstract

The utility model relates to the technical field of valves, in particular to a valve assembly of a hydrogen storage device, which comprises a valve casing, a cover plate is detachably mounted on the surface of the valve casing, filler is filled in the valve casing, a valve rod is rotatably connected in the cover plate, the valve rod penetrates through the filler, a mounting rod is slidably connected in the cover plate, and the valve rod penetrates through the mounting rod. A catalyst is fixedly connected to the lower end of the mounting rod, a spiral groove is formed in the surface of the cover plate, the inner wall of the spiral groove communicates with a plane groove, two clamping blocks are fixedly connected to the arc surface of the mounting rod, the clamping blocks are slidably connected with the plane groove, and the clamping blocks are matched with the spiral groove in size; and the upper end of the mounting rod is fixedly connected with a baffle plate. According to the hydrogen storage device, due to the arrangement of the catalyst, when hydrogen leaks from the gap between the filler and the valve rod, the catalyst can oxidize the leaked hydrogen, so that detonation caused by the hydrogen is prevented, and the safety of the hydrogen storage device is further improved.

Description

Technical Field

[0001] The utility model relates to the technical field of valves, in particular to a valve component of a hydrogen storage device. Background Art

[0002] A valve is a device used to control the flow of fluids. It can open, close, and adjust the flow of fluids to achieve fluid control and regulation. Hydrogen is a clean energy source. In real life, storage tanks are used to store hydrogen, and valves are installed on the surface of the storage tanks to control the flow of hydrogen.

[0003] The above-mentioned and prior arts have the following defects: in order to improve the sealing between the valve housing and the valve stem of the valve, a packing is filled in the valve housing. However, since the packing will be worn during the rotation of the valve stem, a gap is easily generated between the packing and the valve stem. At this time, hydrogen is easy to flow out through the gap between the packing and the valve stem, thereby causing hydrogen leakage and triggering a deflagration.

[0004] Therefore, a valve assembly for a hydrogen storage device is proposed. Utility Model Content

[0005] The utility model aims to solve the problem that hydrogen easily flows out through the gap between the filler and the valve stem, thereby causing hydrogen leakage and triggering deflagration, and proposes a valve assembly for a hydrogen storage device.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a valve assembly of a hydrogen storage device, comprising a valve housing, a cover plate detachably mounted on the surface of the valve housing, a filler filled in the valve housing, a valve stem rotatably connected in the cover plate, the valve stem penetrates the filler, a mounting rod slidably connected in the cover plate, a catalyst is fixedly connected to the lower end of the mounting rod, a spiral groove is formed on the surface of the cover plate, a plane groove is connected to the inner wall of the spiral groove, two clamping blocks are fixedly connected to the arc surface of the mounting rod, the clamping blocks are slidably connected to the plane groove, and the size of the clamping blocks is adapted to the size of the spiral groove.

[0007] The effect achieved by the above components is: by setting the catalyst, when hydrogen leaks from the gap between the packing and the valve stem, the catalyst can oxidize the leaked hydrogen, thereby preventing the hydrogen from causing explosion, thereby improving the safety of the hydrogen storage device.

[0008] Preferably, a baffle is fixedly connected to the upper end of the mounting rod, and the size of the baffle is larger than the size of the spiral groove.

[0009] The effect achieved by the above components is that the baffle can shield the spiral groove to prevent foreign matter from falling into the spiral groove and affecting the normal movement of the card block along the inner wall of the spiral groove.

[0010] Preferably, a pinch piece is fixedly connected to the upper surface of the baffle.

[0011] The effect achieved by the above components is: pinching the pinching piece, the movement of the pinching piece will drive the baffle to move.

[0012] Preferably, a sealing ring is fixedly connected to the lower surface of the baffle, the sealing ring abuts against the upper surface of the baffle, and the sealing ring is a rubber ring.

[0013] The effect achieved by the above components is that the sealing ring can improve the sealing between the baffle plate and the cover plate.

[0014] Preferably, a cavity is defined in the sealing ring.

[0015] The effect achieved by the above components is that the cavity enables the sealing ring to deform normally.

[0016] Preferably, a fixing plate is fixedly connected to the upper surface of the cover plate, a rotating plate is rotatably connected inside the fixing plate, and the rotating plate abuts against the surface of the pinching piece.

[0017] The effect achieved by the above components is: when the rotating plate is rotated and abuts against the surface of the pinching piece, the rotating plate can limit the position of the pinching piece, thereby preventing the block from sliding out of the inner wall of the plane groove.

[0018] Preferably, a magnetic sheet is fixedly connected to the surface of the rotating plate, and the baffle is an iron plate.

[0019] The effect achieved by the above components is that after the magnetic sheet contacts the baffle, the magnetic sheet will be attracted to the surface of the cover plate by its own magnetic force, and the magnetic sheet can achieve the function of limiting the position of the rotating plate.

[0020] Compared with the prior art, the advantages and positive effects of the utility model are:

[0021] In the utility model, by arranging a catalyst, when hydrogen leaks from the gap between the filler and the valve stem, the catalyst can oxidize the leaked hydrogen, thereby preventing the hydrogen from causing deflagration, thereby improving the safety of the hydrogen storage device. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the cross-sectional structure of the utility model.

[0023] Figure 2 This is a schematic diagram of the structure of the valve housing of the utility model;

[0024] Figure 3 This is a schematic diagram of the split structure of the valve housing of the utility model;

[0025] Figure 4 For this utility model Figure 3The enlarged view of point A in the middle;

[0026] Figure 5 This is a schematic diagram of the structure of the installation rod of the utility model;

[0027] Figure 6 It is a schematic diagram of the cross-sectional structure of the sealing ring of the utility model.

[0028] Legend: 1. Valve housing; 2. Cover plate; 3. Packing; 4. Valve stem; 5. Mounting rod; 6. Catalyst; 7. Spiral groove; 8. Flat groove; 9. Block; 10. Baffle; 11. Pinch piece; 12. Sealing ring; 13. Cavity; 14. Fixed plate; 15. Rotating plate; 16. Magnetic piece. DETAILED DESCRIPTION

[0029] In order to more clearly understand the above-mentioned purpose, features and advantages of the utility model, the utility model is further described below in conjunction with the accompanying drawings and embodiments. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

[0030] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways than those described herein. Therefore, the present invention is not limited to the specific embodiments of the following disclosure.

[0031] like Figure 1-Figure 5 As shown, the utility model provides a valve assembly of a hydrogen storage device, including a valve housing 1, a cover plate 2 is detachably mounted on the surface of the valve housing 1, a packing 3 is filled in the valve housing 1, a valve stem 4 is rotatably connected in the cover plate 2, the valve stem 4 penetrates the packing 3, a mounting rod 5 is slidably connected in the cover plate 2, a catalyst 6 is fixedly connected to the lower end of the mounting rod 5, a spiral groove 7 is opened on the surface of the cover plate 2, a plane groove 8 is connected to the inner wall of the spiral groove 7, two clamping blocks 9 are fixedly connected to the arc surface of the mounting rod 5, the clamping blocks 9 are slidably connected to the plane groove 8, the size of the clamping blocks 9 is adapted to the size of the spiral groove 7, and the catalyst 6 is fixedly connected to the circular arc surface of the mounting rod 5. Agent 6, when hydrogen leaks from the gap between the filler 3 and the valve stem 4, the catalyst 6 can oxidize the leaked hydrogen, thereby preventing the hydrogen from causing deflagration, thereby improving the safety of the hydrogen storage device. A baffle 10 is fixedly connected to the upper end of the mounting rod 5. The size of the baffle 10 is larger than the size of the spiral groove 7. The baffle 10 can shield the spiral groove 7 to prevent foreign matter from falling into the spiral groove 7 and affecting the normal movement of the block 9 along the inner wall of the spiral groove 7. A pinching piece 11 is fixedly connected to the upper surface of the baffle 10. When the pinching piece 11 is pinched, the movement of the pinching piece 11 will drive the baffle 10 to move.

[0032] like Figure 1-Figure 6As shown, a sealing ring 12 is fixedly connected to the lower surface of the baffle 10, and the sealing ring 12 is against the upper surface of the baffle 10. The sealing ring 12 is a rubber ring. The sealing ring 12 can improve the sealing between the baffle 10 and the cover plate 2. A cavity 13 is opened in the sealing ring 12, and the cavity 13 can achieve the effect of allowing the sealing ring 12 to deform normally. A fixed plate 14 is fixedly connected to the upper surface of the cover plate 2, and a rotating plate 15 is rotatably connected in the fixed plate 14. The rotating plate 15 is against the surface of the pinching piece 11. When the rotating plate 15 is rotated, when the rotating plate 15 is against the surface of the pinching piece 11, the rotating plate 15 can limit the position of the pinching piece 11, thereby preventing the block 9 from sliding out of the inner wall of the plane groove 8. A magnetic sheet 16 is fixedly connected to the surface of the rotating plate 15. The baffle 10 is an iron plate. After the magnetic sheet 16 contacts the baffle 10, the magnetic sheet 16 will be attracted to the surface of the cover plate 2 by its own magnetic force, and the magnetic sheet 16 can achieve the effect of limiting the position of the rotating plate 15.

[0033] The overall working principle is that when it is necessary to prevent hydrogen leaking from the hydrogen storage device from causing deflagration, pinch the pinch piece 11, the movement of the pinch piece 11 will drive the baffle 10 to move, the movement of the baffle 10 will drive the installation rod 5 to move, the movement of the installation rod 5 will drive the catalyst 6 to move, and then the installation rod 5 is inserted into the cover plate 2, and when the block 9 contacts the inner wall of the spiral groove 7, the pinch piece 11 is rotated, the block 9 will drive the installation rod 5 to move downward along the inner wall of the spiral groove 7, and the baffle 10 will move synchronously at this time, and the movement of the baffle 10 will cause the sealing ring 12 to press against the surface of the cover plate 2, as the block 9 continues to move, the sealing ring 12 will be deformed due to extrusion and in close contact with the cover plate 2, and the cavity 13 will achieve the effect of enabling the sealing ring 12 to deform normally, and the air pressure in the cavity 13 will rise at this time, and when the block 9 moves to the inner wall of the plane groove 8, the plane groove 8 can limit The position of the card block 9 is limited, thereby limiting the position of the mounting rod 5. At this time, the sealing ring 12 can improve the sealing between the baffle 10 and the cover plate 2. The baffle 10 can block the spiral groove 7 to prevent foreign matter from falling into the spiral groove 7 and affecting the normal movement of the card block 9 along the inner wall of the spiral groove 7. Then, the rotating plate 15 is rotated. When the rotating plate 15 is against the surface of the pinching piece 11, the rotating plate 15 can limit the position of the pinching piece 11, thereby preventing the card block 9 from sliding out from the inner wall of the plane groove 8. At this time, the magnetic piece 16 will contact the baffle 10, and the magnetic piece 16 will be attracted to the surface of the cover plate 2 by its own magnetic force. The magnetic piece 16 reaches the function of limiting the position of the rotating plate 15. When hydrogen leaks from the gap between the filler 3 and the valve stem 4, the catalyst 6 can oxidize the leaked hydrogen, thereby preventing the hydrogen from causing deflagration, thereby improving the safety of the hydrogen storage device.

[0034] The above description is only a preferred embodiment of the present invention and does not limit the present invention in other forms. Any technician familiar with the profession may use the technical content disclosed above to change or modify it into an equivalent embodiment with equivalent changes and apply it to other fields. However, any simple modification, equivalent change and modification made to the above embodiment based on the technical essence of the present invention without departing from the content of the technical solution of the present invention still falls within the protection scope of the technical solution of the present invention.

Claims

1. A valve assembly for a hydrogen storage device, comprising a valve housing (1), characterized in that: A cover plate (2) is detachably mounted on the surface of the valve housing (1), the valve housing (1) is filled with a packing (3), a valve stem (4) is rotatably connected to the cover plate (2), the valve stem (4) penetrates the packing (3), a mounting rod (5) is slidably connected to the cover plate (2), a catalyst (6) is fixedly connected to the lower end of the mounting rod (5), a spiral groove (7) is provided on the surface of the cover plate (2), the inner wall of the spiral groove (7) is connected to a plane groove (8), two clamping blocks (9) are fixedly connected to the arc surface of the mounting rod (5), the clamping blocks (9) are slidably connected to the plane groove (8), and the size of the clamping blocks (9) is adapted to the size of the spiral groove (7).

2. The valve assembly of a hydrogen storage device according to claim 1, characterized in that: A baffle plate (10) is fixedly connected to the upper end of the mounting rod (5), and the size of the baffle plate (10) is larger than the size of the spiral groove (7).

3. The valve assembly of a hydrogen storage device according to claim 2, characterized in that: A pinching piece (11) is fixedly connected to the upper surface of the baffle (10).

4. The valve assembly of a hydrogen storage device according to claim 2, characterized in that: A sealing ring (12) is fixedly connected to the lower surface of the baffle (10), and the sealing ring (12) abuts against the upper surface of the baffle (10). The sealing ring (12) is a rubber ring.

5. The valve assembly of a hydrogen storage device according to claim 4, characterized in that: A cavity (13) is defined in the sealing ring (12).

6. The valve assembly of a hydrogen storage device according to claim 2, characterized in that: A fixing plate (14) is fixedly connected to the upper surface of the cover plate (2), a rotating plate (15) is rotatably connected inside the fixing plate (14), and the rotating plate (15) abuts against the surface of the pinching sheet (11).

7. The valve assembly of a hydrogen storage device according to claim 6, characterized in that: A magnetic sheet (16) is fixedly connected to the surface of the rotating plate (15), and the baffle (10) is an iron plate.

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