Sealing valve device for hydrogen storage

Abstract

The invention relates to the technical field of pressure vessel valves, in particular to a sealing valve device for hydrogen storage. Comprising a pneumatic main body used for power, a ventilation device used for controlling hydrogen circulation, a sealing device used for sealing the air inlet end of the ventilation device in the replacement process and a movable main body arranged in the pneumatic main body and used for controlling ventilation and sealing of the ventilation device, and the rear portion of the ventilation device is fixedly connected with the pneumatic main body. According to the pneumatic device, through the arrangement of the push rod, the positioning block, the rubber ring, the positioning ring, the supporting ring, the rubber conical block, the conical plate, the elastic piece and the sleeve, the rubber conical block can be directly dragged towards one side, the aged rubber conical block is directly taken down and replaced, during installation, the rubber ring is directly arranged on the outer side of the sleeve in a sleeving mode, and the rubber conical block can be conveniently taken down and replaced. The rubber ring and the sleeve are installed on the outer side of the positioning block together, at the moment, the reed is clamped on the outer side of the positioning block, and installation of the rubber conical block is achieved.

Description

Technical Field

[0001] The invention relates to the technical field of pressure vessel valves, and in particular to a sealing valve device for hydrogen storage. Background Art

[0002] Hydrogen is a single substance formed by the hydrogen element. After preparation, hydrogen is usually directly introduced into a pressure vessel for storage. A pressure vessel refers to a closed device that contains gas or liquid and bears a certain pressure. When a pressure vessel is in use, there is usually a very strong pressure inside the pressure vessel. In order to ensure that the hydrogen in the pressure vessel does not leak out and that the hydrogen in the pressure vessel can be quickly taken out, sealing valves are usually installed at the inlet and outlet of the pressure vessel.

[0003] When using a traditional hydrogen storage sealing valve, the sealing valve is usually directly installed on the pressure vessel, and then the valve is sealed by a pneumatic device. At this time, because the sealing part is in a high-pressure state for a long time, the sealing part is damaged or aged after long-term use. At this time, the hydrogen can only be transferred, and then the sealing valve can be removed for maintenance. Therefore, a hydrogen storage sealing valve device is proposed to address the above problems. Summary of the invention

[0004] The object of the present invention is to provide a sealing valve device for hydrogen storage, so as to solve the problem that the sealing valve sealing parts are damaged and aged and are inconvenient to maintain and repair.

[0005] To achieve the above object, the present invention provides the following technical solutions: A sealing valve device for hydrogen storage, comprising a pneumatic body for power, a ventilation device for controlling the flow of hydrogen, a sealing device for sealing the air inlet end of the ventilation device during replacement, and a mobile body in the pneumatic body for controlling the ventilation and sealing of the ventilation device, wherein the rear of the ventilation device is fixedly connected to the pneumatic body, the front end of the mobile body is arranged in the pneumatic body, the sealing device is arranged in the ventilation device, the ventilation device comprises a ventilation block, a sealing gasket, a baffle, a rubber block, a sealed body and a shell, the rear of the shell is fixedly connected to the pneumatic body, the left and right sides of the shell are fixedly connected with bolts, the bolts penetrate the baffle, the outer side of the bolts is spirally connected with nuts, the nuts are tightly fitted with the baffle, and the rubber There are eight rubber blocks in total, and four rubber blocks are evenly fixed on the left and right sides behind the baffle in a group, the side of the rubber block away from the baffle is tightly fitted with the shell, the sealing gasket is fixed behind the ventilation block, and the other side of the sealing gasket is tightly fitted with the shell, the sealing device passes through the left side of the sealing gasket, and the movable body passes through the central position of the sealing gasket, the front left side of the shell is fixedly connected with an air inlet body, and the central position of the right side of the shell is fixedly connected with an air outlet body, the air inlet body and the air outlet body are on the same water surface, the left side of the ventilation block is provided with an air inlet hole, the central position of the rear of the ventilation block is provided with an air outlet hole, the position of the air inlet hole of the ventilation block is provided with a mounting hole, and the closed body is arranged in the mounting hole of the ventilation block; The sealed body comprises a sealing cone ring, a sealing ring, a rubber column, a first spring, an elastic frame, a fixing rod and a limiting ring, wherein the sealing cone ring is fixedly connected to the sealing ring, the sealing cone ring is provided with evenly distributed through holes, the rubber column is arranged in the through holes provided in the sealing ring, the first spring is fixed in the rubber column, the elastic frame is arranged in the sealing cone ring and the sealing ring, the rubber column is fixed to a side of the elastic frame arranged in the sealing ring, the limiting ring is a group of two fixedly connected to the outer side of one end of the fixing rod away from the elastic frame, and the limiting ring and the fixing rod are both arranged in the rubber column; The movable body comprises a push rod, a positioning block, a buffer body and a sealing body, the positioning block is fixed in front of the push rod, the buffer body is arranged on the outside of the positioning block, a sealing body is arranged on the left side of the buffer body, the buffer body comprises a rubber ring, a positioning ring and a supporting ring, the sealing body comprises a rubber cone block, a conical plate, an elastic sheet and a sleeve, one side of the rubber ring is tightly fitted with the push rod, and the other side of the rubber ring is tightly fitted with the rubber cone block, the positioning ring is arranged on a side of the rubber ring close to the push rod, the side of the support ring away from the rubber cone block is fixedly connected to the positioning ring, the conical plate is installed in the rubber cone block, the side of the conical plate close to the positioning block is fixedly connected with a sleeve, the sleeve is fixedly connected with a uniformly distributed elastic sheet, the sleeve is arranged in the support ring, the sleeve is arranged on the outside of the positioning block, the side of the elastic sheet away from the sleeve is arranged in an arc shape, and the side of the elastic sheet arranged in an arc shape is tightly fitted with the positioning block; The side of the sealing cone ring away from the sealing ring is tightly fitted with the air intake body, the side of the rubber column away from the sealing cone ring is tightly fitted with the inner wall of the mounting hole opened by the ventilation block, the sealing gasket is arranged on the outside of the rubber ring and the rubber cone block, the limiting ring is tightly fitted with the rubber column, and the fixing rod is arranged on the inner side of one end of the first spring close to the sealing cone ring.

[0006] Preferably, the elastic frame includes a fixing ring, an elastic sheet and a reinforcement plate, the fixing ring is arranged inside the sealing ring, the reinforcement plate is fixed to a side of the fixing ring close to the sealing cone ring, the elastic sheet is fixed to a side of the fixing ring close to the sealing cone ring, the reinforcement plate and the elastic sheet are arranged in a one-to-one correspondence, the reinforcement plate is fixedly connected to the elastic sheet, and the reinforcement plate and the elastic sheet are both fixedly connected to the sealing cone ring.

[0007] Preferably, the inner diameter of the positioning ring is 0.8 times the diameter of the push rod, and the outer diameter of the support ring is 0.95 times the diameter of the push rod.

[0008] Preferably, the axes of the push rod, rubber ring, positioning ring, support ring, conical plate and sleeve are on the same straight line, and one side of the rubber cone block is tightly fitted with the air outlet hole opened in the ventilation block.

[0009] Preferably, the sealing device comprises a slider, a locking body, a sealing cone, a sealing plate, a mounting ring, a positioning ball, a spring, a second spring and a mounting plate, wherein a side of the slider away from the ventilation block is fixedly connected to a fixing plate, a side of the fixing plate away from the slider is fixedly connected to a push rod, a side of the slider away from the push rod is provided with a mounting groove, the slider is fixedly connected to a uniformly distributed locking body through the provided mounting groove, the sealing cone and the sealing plate are both arranged in the mounting groove provided in the slider, the mounting plate is fixedly connected in the sealing cone, a side of the sealing cone close to the sealing plate is fixedly connected to a second spring, the other end of the second spring is tightly fitted with the slider, a mounting ring is fixedly provided on a side of the sealing plate away from the sealing cone, a side of the mounting ring close to the sealing plate is fixedly connected to positioning balls that are evenly distributed, an outer side of the positioning ball is tightly fitted with the sealing plate, a side of the mounting ring away from the sealing plate is fixedly connected to uniformly distributed springs, and the springs are locked in the locking body.

[0010] Preferably, the engaging body includes a card block, one side of the card block is provided with an inclined surface, the other side of the card block is provided with an inclined groove, the card block and the spring leaf are arranged in a one-to-one correspondence, the spring leaf is arranged in a Z shape, a protrusion on one side of the spring leaf is engaged in the inclined groove provided in the card block, and the spring leaf and the card block are evenly distributed on the outside of the second spring.

[0011] Preferably, the second spring passes through the sealing plate, and a side of the second spring away from the mounting plate is tightly fitted with the sliding block, and the sliding block is arranged on the left side of the push rod.

[0012] Compared with the prior art, the present invention has the following beneficial effects: 1. In the present invention, the rubber cone block can be directly pulled to one side by the push rod, positioning block, rubber ring, positioning ring, support ring, rubber cone block, cone plate, elastic sheet and sleeve. The elastic sheet is driven to move by the rubber cone block, cone plate and sleeve. The elastic sheet is deformed under the action of the positioning block, so that the aged rubber cone block can be directly removed and replaced. During installation, the rubber ring is directly sleeved on the outside of the sleeve, and the rubber ring is installed together with the sleeve on the outside of the positioning block. At this time, the spring sheet is engaged with the outside of the positioning block to realize the installation of the rubber cone block. When the rubber cone block is in use, the contact position between the rubber ring and the push rod can be reinforced by the positioning ring, and the support ring can support the rubber ring to keep the rubber ring stable. At the same time, the support ring can support the cone plate and the rubber cone block to make the seal more stable. 2. In the present invention, by providing the ventilation block, sealing gasket, baffle, rubber block, air inlet, air outlet, sealing cone ring, sealing ring, through hole, rubber column and first spring, when the rubber cone block is aged and needs to be replaced, the nut used to fix the baffle can be directly removed, and the ventilation block can be taken out of the housing through the baffle, so that the push rod can push the rubber cone block to the edge of the housing to facilitate the replacement of the rubber cone block. At the same time, the sealing cone ring and the sealing ring can be replaced. After the replacement is completed, the ventilation block is directly placed in the housing, and the outer side of the sealing cone ring is tightly combined with the air inlet body through the fixing ring, the reinforcement plate and the elastic sheet. At the same time, the sealing cone ring can be pushed under the action of the rubber column and the first spring, so that the sealing cone ring and the air inlet body are more closely fitted, thereby reducing the leakage of hydrogen; 3. In the present invention, by providing a slider, a block, an inclined surface, an inclined groove, a sealing cone, a sealing plate, a mounting ring, a positioning ball, a reed, a second spring and a mounting plate, when the rubber cone block needs to be replaced, the slider can be driven to move by the push rod and the fixing plate, and the slider drives the sealing cone to move to one side of the ventilation device. At this time, the second spring pushes the sealing cone through the mounting plate to seal the intake body to reduce hydrogen leakage. When the sealing cone needs to be replaced, the sealing cone is pulled to drive the sealing plate to detach from the outside of the positioning ball through the sealing cone, and then the mounting ring and the reed are removed from the outside of the block, and a new mounting ring is installed in the sealing plate through the positioning ball, and then the whole is installed in the slider, and the reed is positioned through the inclined groove provided in the block to achieve replacement of the sealing cone and the sealing plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a schematic diagram of the installation structure of the housing of the present invention; Figure 3 This is a schematic diagram of the installation structure of the sealing gasket of the present invention; Figure 4 For the present invention Figure 3 A schematic diagram of the structure at A; Figure 5 It is a structural schematic diagram of the ventilation device of the present invention; Figure 6 It is a schematic diagram of the installation structure of the enclosed main body of the present invention; Figure 7 It is a structural schematic diagram of the sealing gasket of the present invention; Figure 8 It is a structural schematic diagram of the enclosed main body of the present invention; Fig. 9 It is a schematic diagram of the installation structure of the first spring of the present invention; Fig.10 It is a schematic structural diagram of the elastic frame of the present invention; Fig.11It is a schematic diagram of the installation structure of the limit ring of the present invention; Fig.12 It is a schematic diagram of the assembly structure of the mobile body of the present invention; Fig.13 This is a schematic diagram of the installation structure of the positioning block of the present invention; Fig.14 It is a schematic diagram of the installation structure of the conical plate of the present invention; Fig.15 It is a schematic diagram of the installation structure of the reed of the present invention; Fig.16 It is a structural schematic diagram of the positioning block of the present invention; Fig.17 It is a schematic diagram of the installation structure of the sealing device of the present invention; Fig.18 It is a schematic diagram of the installation structure of the sealing cone of the present invention; Fig.19 It is a structural schematic diagram of the clamping body of the present invention; Fig. 20 It is a schematic diagram of the installation structure of the second spring of the present invention.

[0014] In the figure: 1, pneumatic body; 2, ventilation device; 21, ventilation block; 22, sealing gasket; 23, baffle; 24, rubber block; 25, air inlet; 26, air outlet; 27, closed body; 271, sealing cone ring; 272, sealing ring; 273, through hole; 274, rubber column; 275, first spring; 276, elastic frame; 2761, fixing ring; 2762, reinforcement plate; 2763, elastic sheet; 277, fixing rod; 278, limiting ring; 28, housing; 29, mounting hole; 3, air inlet body; 4, air outlet body; 5, fixing plate; 6. Sealing device; 61. Slider; 62. Engaging body; 621. Block; 622. Inclined surface; 623. Inclined groove; 63. Sealing cone; 64. Sealing plate; 65. Mounting ring; 66. Positioning ball; 67. Spring leaf; 68. Second spring; 69. Mounting plate; 7. Moving body; 71. Push rod; 72. Positioning block; 73. Buffering body; 731. Rubber ring; 732. Positioning ring; 733. Support ring; 74. Sealing body; 741. Rubber cone block; 742. Conical plate; 743. Elastic sheet; 744. Sleeve; 8. Bolt; 9. Nut. DETAILED DESCRIPTION

[0015] See also Figure 1-20 , the present invention provides a technical solution: A sealing valve device for hydrogen storage, comprising a pneumatic body 1 for power, a venting device 2 for controlling hydrogen circulation, a sealing device 6 for sealing the air inlet end of the venting device 2 during replacement, and a movable body 7 in the pneumatic body 1 for controlling ventilation and sealing of the venting device 2, wherein the venting device 2 is fixedly connected to the pneumatic body 1 at the rear, the front end of the movable body 7 is arranged in the pneumatic body 1, the sealing device 6 is arranged in the venting device 2, the venting device 2 comprises a venting block 21, a sealing gasket 22, a baffle 23, a rubber block 24, a sealed body 27 and a shell 28, the rear of the shell 28 is fixedly connected to the pneumatic body 1, bolts 8 are fixedly connected to the left and right sides of the front of the shell 28, the bolts 8 penetrate the baffle 23, nuts 9 are spirally connected to the outer side of the bolts 8, the nuts 9 are tightly fitted to the baffle 23, there are eight rubber blocks 24, and four rubber blocks 24 are evenly fixed on the left side behind the baffle 23 in a group. On the right side, one side of the rubber block 24 away from the baffle 23 is tightly fitted with the shell 28, the sealing gasket 22 is fixed at the rear of the ventilation block 21, and the other side of the sealing gasket 22 is tightly fitted with the shell 28. The sealing device 6 passes through the left side of the sealing gasket 22, and the moving body 7 passes through the central position of the sealing gasket 22. The front left side of the shell 28 is fixedly connected with the air intake body 3, and the central position of the right side of the shell 28 is fixedly connected with the air outlet body 4. The air intake body 3 and the air outlet body 4 are on the same water surface. An air inlet hole 25 is opened on the left side of the ventilation block 21, and an air outlet hole 26 is opened at the central position of the rear of the ventilation block 21. A mounting hole 29 is opened at the position of the air inlet hole 25 opened in the ventilation block 21, and the closed body 27 is arranged in the mounting hole 29 opened in the ventilation block 21. Through this arrangement, the sealing valve can be directly installed on the hydrogen high-pressure container to seal the hydrogen high-pressure container. When hydrogen is needed, the valve can be controlled to achieve hydrogen extraction.

[0016] like Figure 3-11As shown, the closed body 27 includes a sealing cone ring 271, a sealing ring 272, a rubber column 274, a first spring 275, an elastic frame 276, a fixing rod 277 and a limiting ring 278. The sealing cone ring 271 is fixedly connected to the sealing ring 272. The sealing cone ring 271 is provided with evenly distributed through holes 273. The rubber column 274 is arranged in the through holes 273 provided in the sealing ring 272. The first spring 275 is fixed in the rubber column 274. The elastic frame 276 is arranged in the sealing cone ring 271 and the sealing ring 272. The rubber column 274 is fixed to a side of the elastic frame 276 arranged in the sealing ring 272. The limiting ring 278 is fixedly connected to the outer side of one end of the fixing rod 277 away from the elastic frame 276 in a group. The limiting ring 278 and the fixing rod 277 are both arranged in the rubber column 274. The side of the sealing cone ring 271 away from the sealing ring 272 is tightly fitted with the air intake body 3. The rubber column 274 is away from the sealing One side of the sealing cone ring 271 is tightly fitted with the inner wall of the mounting hole 29 opened by the ventilation block 21, the sealing gasket 22 is arranged on the outside of the rubber ring 731 and the rubber cone block 741, the limiting ring 278 is tightly fitted with the rubber column 274, and the fixing rod 277 is arranged on the inner side of one end of the first spring 275 close to the sealing cone ring 271. Through this arrangement, it is convenient for the push rod 71 to push the rubber cone block 741 to the edge of the shell 28, which is convenient for the replacement of the rubber cone block 741. At the same time, the sealing cone ring 271 and the sealing ring 272 can be replaced. After the replacement is completed, the ventilation block 21 is directly placed in the shell 28, and the outer side of the sealing cone ring 271 is tightly combined with the intake body 3 through the fixing ring 2761, the reinforcement plate 2762 and the elastic sheet 2763. At the same time, the sealing cone ring 271 can be pushed under the action of the rubber column 274 and the first spring 275, so that the sealing cone ring 271 and the intake body 3 fit more closely, thereby reducing the leakage of hydrogen.

[0017] like Figure 1 , 2, 12, 13, 14, 15 and 16, the moving body 7 includes a push rod 71, a positioning block 72, a buffer body 73 and a sealing body 74, the positioning block 72 is fixed in front of the push rod 71, the buffer body 73 is arranged on the outside of the positioning block 72, and a sealing body 74 is arranged on the left side of the buffer body 73. The buffer body 73 includes a rubber ring 731, a positioning ring 732 and a support ring 733. The sealing body 74 includes a rubber cone block 741, a cone plate 742, an elastic sheet 743 and a sleeve 744. One side of the rubber ring 731 is connected to the push rod 71 is tightly fitted, the other side of the rubber ring 731 is tightly fitted with the rubber cone block 741, the positioning ring 732 is arranged on the side of the rubber ring 731 close to the push rod 71, the side of the support ring 733 away from the rubber cone block 741 is fixedly connected to the positioning ring 732, the cone plate 742 is installed in the rubber cone block 741, the side of the cone plate 742 close to the positioning block 72 is fixedly connected with a sleeve 744, and the sleeve 744 is fixedly connected with a uniformly distributed elastic sheet 743, the sleeve 744 is arranged in the support ring 733, and the sleeve 744 is The elastic sheet 743 is arranged outside the positioning block 72, and the side of the elastic sheet 743 away from the sleeve 744 is arranged in an arc shape. The side of the elastic sheet 743 arranged in an arc shape is closely fitted with the positioning block 72. Through this arrangement, the rubber cone block 741 can be directly pulled to one side, and the elastic sheet 743 is driven to move by the rubber cone block 741, the cone plate 742 and the sleeve 744. The elastic sheet 743 is deformed under the action of the positioning block 72, so that the aged rubber cone block 741 can be directly removed and replaced. During installation, the rubber ring 731 is directly sleeved on the outside of the sleeve 744 On the other hand, the rubber ring 731 is installed together with the sleeve 744 on the outside of the positioning block 72. At this time, the elastic sheet 743 is engaged with the outside of the positioning block 72 to realize the installation of the rubber cone block 741. When the rubber cone block 741 is in use, the contact position between the rubber ring 731 and the push rod 71 can be reinforced by the positioning ring 732. The support ring 733 can support the rubber ring 731 to maintain the stability of the rubber ring 731 itself. At the same time, the support ring 733 can support the conical plate 742 and the rubber cone block 741 to make the seal more stable.

[0018] like Figure 8-11 As shown, the elastic frame 276 includes a fixing ring 2761, an elastic sheet 2763 and a reinforcing plate 2762. The fixing ring 2761 is arranged in the sealing ring 272, the reinforcing plate 2762 is fixed on the side of the fixing ring 2761 close to the sealing cone ring 271, the elastic sheet 2763 is fixed on the side of the fixing ring 2761 close to the sealing cone ring 271, the reinforcing plate 2762 and the elastic sheet 2763 are arranged in a one-to-one correspondence, the reinforcing plate 2762 and the elastic sheet 2763 are fixedly connected, and the reinforcing plate 2762 and the elastic sheet 2763 are both fixedly connected to the sealing cone ring 271. Through this arrangement, the sealing cone ring 271 can be positioned and supported under the action of the elastic sheet 2763, so that the shape of the sealing cone ring 271 is more stable, and at the same time, the sealing effect of the sealing cone ring 271 is better.

[0019] like Fig.12 and 13 As shown, the inner diameter of the positioning ring 732 is 0.8 times the diameter of the push rod 71, the outer diameter of the support ring 733 is 0.95 times the diameter of the push rod 71, the axes of the push rod 71, the rubber ring 731, the positioning ring 732, the support ring 733, the conical plate 742 and the sleeve 744 are on the same straight line, and one side of the rubber cone block 741 is tightly fitted with the air outlet 26 opened by the ventilation block 21. Through this arrangement, after the sleeve 744 is sleeved on the outside of the positioning block 72, the rubber ring 731 and the push rod 71 can be more stably fitted under the action of the positioning ring 732, and at the same time, the rubber ring 731 is supported under the action of the support ring 733 to make the shape of the rubber ring 731 more stable, and the support ring 733 can support the conical plate 742.

[0020] like Figure 17-20As shown, the sealing device 6 includes a slider 61, a clamping body 62, a sealing cone 63, a sealing plate 64, a mounting ring 65, a positioning ball 66, a spring 67, a second spring 68 and a mounting plate 69. The side of the slider 61 away from the ventilation block 21 is fixedly connected to the fixing plate 5, and the side of the fixing plate 5 away from the slider 61 is fixedly connected to the push rod 71. The side of the slider 61 away from the push rod 71 is provided with a mounting groove. The slider 61 is fixedly connected to the clamping body 62 which is evenly distributed through the provided mounting groove. The sealing cone 63 and the sealing plate 69 are fixedly connected to the fixing plate 5. 4 are all arranged in the installation groove opened by the slider 61, the installation plate 69 is fixedly connected in the sealing cone 63, the side of the sealing cone 63 close to the sealing plate 64 is fixedly connected with the second spring 68, the other end of the second spring 68 is tightly fitted with the slider 61, the side of the sealing plate 64 away from the sealing cone 63 is fixedly provided with a mounting ring 65, the side of the mounting ring 65 close to the sealing plate 64 is fixedly connected with uniformly distributed positioning balls 66, the outer side of the positioning balls 66 is tightly fitted with the sealing plate 64, and the side of the mounting ring 65 away from the sealing plate 64 The springs 67 are evenly distributed and fixedly connected. The springs 67 are engaged in the engaging body 62. The second spring 68 penetrates the sealing plate 64. The side of the second spring 68 away from the mounting plate 69 is tightly fitted with the slider 61. The slider 61 is arranged on the left side of the push rod 71. Through this arrangement, when the rubber cone block 741 needs to be replaced, the push rod 71 and the fixing plate 5 drive the slider 61 to move, and the slider 61 drives the sealing cone 63 to move to the side of the ventilation device 2. At this time, the second spring 68 pushes the sealing cone 63 to the side of the ventilation device 2 through the mounting plate 69. The air intake body 3 is sealed to reduce hydrogen leakage. When the sealing cone 63 needs to be replaced, the sealing cone 63 is pulled to drive the sealing plate 64 to detach from the outside of the positioning ball 66 through the sealing cone 63, and then the mounting ring 65 and the spring 67 are removed from the outside of the block 621, and the new mounting ring 65 is installed in the sealing plate 64 through the positioning ball 66. Then the whole is installed in the slider 61, and the spring 67 is positioned through the inclined groove 623 provided in the block 621 to realize the replacement of the sealing cone 63 and the sealing plate 64.

[0021] like Figure 18-20 As shown, the engaging body 62 includes a block 621, one side of the block 621 is provided with an inclined surface 622, the other side of the block 621 is provided with an inclined groove 623, the block 621 and the spring 67 are arranged in a one-to-one correspondence, the spring 67 is arranged in a Z shape, a protrusion on one side of the spring 67 is engaged in the inclined groove 623 provided in the block 621, and the spring 67 and the block 621 are evenly distributed on the outside of the second spring 68. Through this arrangement, the installation of the spring 67 can be facilitated under the action of the inclined surface 622 provided on the block 621, and the spring 67 is limited under the action of the inclined groove 623 provided in the block 621, so that the installation of the sealing cone 63 and the sealing plate 64 is more stable.

[0022] Working process: When the sealing valve device for hydrogen storage is used, the air intake body 3 is first fixed on the high-pressure hydrogen storage tank. Then, when it is necessary to transfer hydrogen, the pneumatic body 1 is directly started. The pneumatic body 1 drives the rubber ring 731 and the rubber cone block 741 to move backward through the push rod 71. After the rubber cone block 741 moves to the appropriate position, the hydrogen enters the sealing cone ring 271 and the sealing ring 272 through the air intake body 3. Then, the hydrogen enters the housing 28 through the air inlet hole 25 and the air outlet hole 26 opened by the ventilation block 21. Then, the hydrogen is sent to the air outlet body 4 through the ventilation block 21. The transfer of hydrogen is realized through the air outlet body 4. After the hydrogen is transferred out of the appropriate amount, the pneumatic body 1 is started to push the push rod 71 to move, so that the push rod 71 drives the buffer body The pneumatic body 73 and the rubber cone block 741 move, so that the rubber cone block 741 and the air outlet hole 26 opened in the ventilation block 21 fit each other. At this time, the sealing ring 272 is positioned and supported by the positioning ring 732 and the support ring 733, so that the sealing ring 272 can fit tightly with the push rod 71 and the rubber cone block 741, and at the same time, the rubber cone block 741 and the cone plate 742 can be pushed to move toward the ventilation block 21, so that the rubber cone block 741 and the ventilation block 21 fit tightly. When the rubber cone block 741 is used for a long time and ages, the nut 9 is removed from the screw by a wrench, and then the pneumatic body 1 is started. The pneumatic body 1 pushes the push rod 71 to move, and the push rod 71 pushes the ventilation block 21 through the rubber ring 731 and the cone plate 742. At the same time, the push rod 71 is pushed by the fixing plate 5 and the slider 61 The vent block 21 drives the sealing cone ring 271 and the sealing ring 272 to move. Under the action of the air intake body 3, the sealing cone ring 271 and the sealing ring 272 are pushed to the side away from the air intake body 3. At this time, the rubber column 274 and the first spring 275 are compressed. At the same time, the elastic sheet 2763, the reinforcement plate 2762 and the sealing cone ring 271 are slightly deformed under the action of the thrust. In the process of the sealing cone ring 271 leaving the air intake body 3, hydrogen leaks slightly through the air intake body 3. Then the pneumatic device continues to push the slider 61 to move through the fixing plate 5 until the slider 61 moves to the side of the air intake body 3. At this time, the second spring 68 pushes the mounting plate 69 to move, and the mounting plate 69 pushes the sealing cone 63 to move. The sealing cone 63 and the air intake body 3 The rubber cone block 741 is tightly fitted to prevent hydrogen leakage, and then the rubber cone block 741 is pulled forward. The rubber cone block 741 drives the sleeve 744 and the elastic sheet 743 to move forward through the cone plate 742. At this time, the elastic sheet 743 is deformed under the action of the positioning block 72 until the rubber cone block 741 is taken out. Then the rubber ring 731 can be taken out from the outside of the positioning block 72, and the rubber ring 731 is installed on the right side of the rubber cone block 741. At this time, the sleeve 744 is inserted into the rubber ring 731, and then the new rubber cone block 741 is put together with the rubber ring 731 on the outside of the positioning block 72. At this time, the elastic sheet 743 is deformed when passing through the positioning block 72, and the sleeve 744 is fixed together with the rubber cone block 741 and the rubber ring 731 on the outside of the positioning block 72.After the rubber cone block 741 is replaced, the old sealing cone ring 271 and the sealing ring 272 are replaced with new ones, and placed in the ventilation block 21. The ventilation block 21 together with the replaced sealing cone ring 271 and the sealing ring 272 are placed in the housing 28. At this time, the pneumatic device is started, and the pneumatic device drives the rubber ring 731, the rubber cone block 741 and the slider 61 to move, so that the sealing cone 63 in the slider 61 falls off from one end of the air intake body 3, and then the baffle 23 is quickly pushed, and the baffle 23 drives the ventilation block 21 to move to the inside of the housing 28 until the sealing cone ring 2 The sealing cone ring 271 and the gas outlet body 4 are fitted together, and the sealing cone ring 271 and the gas inlet body 3 are tightly fitted through the elastic sheet 2763 and the reinforcing plate 2762, the sealing cone ring 271, the rubber column 274 and the elastic force of the first spring 275, and then the nut 9 is screwed to the outside of the bolt 8, and the pneumatic body 1 is started, so that the pneumatic body 1 pushes the rubber cone block 741 through the push rod 71 to fit tightly with the gas outlet hole 26 to achieve sealing. When it is necessary to replace the sealing cone 63 and the sealing plate 64, it is necessary to remove the valve device from the high-pressure hydrogen storage tank, and then open the outer The outer shell 28 is removed from the outer side of the slider 61, and then the sealing cone 63 is pulled to the side away from the slider 61, so that the sealing cone 63 drives the sealing plate 64 to move, and the sealing cone 63 and the sealing plate 64 are taken out. Then, the mounting ring 65 can be directly pulled by a tool such as tweezers, and the mounting ring 65 drives the spring 67 to move. At this time, the spring 67 is deformed under the action of the inclined groove 623 provided by the clamping block 621, and then the spring 67 can be taken out, and then the positioning ball 66 set at one end of the new mounting ring 65 is inserted into the sealing plate 64, and one side of the new mounting ring 65 is The spring 67 is aligned with the block 621, so that the spring 67 corresponds to the inclined surface 622 of the block 621, and then the sealing cone 63 and the sealing plate 64 are pushed to move, and the mounting ring 65 and the spring 67 are pushed to move. The spring 67 is deformed under the action of the inclined surface 622 of the block 621 until the spring 67 enters the inclined groove 623 opened by the block 621, and the spring 67 is engaged by the inclined groove 623 opened by the block 621. Finally, the housing 28 is reinstalled on the outside of the slider 61 and the push rod 71, and the replacement of the sealing cone 63 and the sealing plate 64 is completed.

[0023] This article uses specific examples to illustrate the principles and implementation methods of the present invention. The above examples are only used to help understand the method and core ideas of the present invention. The above is only a preferred implementation of the present invention. It should be pointed out that due to the limitations of textual expression and the objective existence of infinite specific structures, ordinary technicians in this technical field can make several improvements, modifications or changes without departing from the principles of the present invention, and can also combine the above technical features in an appropriate manner; these improvements, modifications, changes or combinations, or the direct application of the inventive concept and technical solution to other occasions without improvement, should be regarded as the protection scope of the present invention.

Claims

1. A sealed valve device for hydrogen storage, comprising a pneumatic body (1) for power, a venting device (2) for controlling hydrogen flow, a sealing device (6) for sealing the air inlet end of the venting device (2) during replacement, and a moving body (7) in the pneumatic body (1) for controlling ventilation and sealing of the venting device (2), characterized in that: The rear of the ventilation device (2) is fixedly connected to the pneumatic body (1), the front end of the movable body (7) is arranged in the pneumatic body (1), the sealing device (6) is arranged in the ventilation device (2), the ventilation device (2) comprises a baffle (23) and a shell (28), the rear of the shell (28) is fixedly connected to the pneumatic body (1), the left and right sides of the shell (28) are fixedly connected with bolts (8), the bolts (8) pass through the baffle (23), the outer side of the bolt (8) is spirally connected with a nut (9), the nut (9) is tightly fitted with the baffle (23), the movable body (7) comprises a push rod (71), a positioning block (72) and a buffer body (73), the positioning block (72) is fixed in front of the push rod (71), the buffer body (73) is arranged on the outside of the positioning block (72), and the end of the push rod (71) away from the buffer body (73) is fixedly connected to the pneumatic body (1).

2. A sealing valve device for hydrogen storage according to claim 1, characterized in that: The ventilation device (2) further comprises a ventilation block (21), a sealing gasket (22), a rubber block (24) and a sealed body (27). The number of the rubber blocks (24) is eight in total, and the rubber blocks (24) are evenly fixed in a group of four on the left and right sides behind the baffle (23). The side of the rubber block (24) away from the baffle (23) is tightly fitted with the outer shell (28). The sealing gasket (22) is fixed behind the ventilation block (21), and the other side of the sealing gasket (22) is tightly fitted with the outer shell (28). The sealing device (6) passes through the left side of the sealing gasket (22), and the movable body (7) passes through the left side of the sealing gasket (22). An air inlet body (3) is fixedly connected to the front left side of the housing (28) at the central position of the sealing gasket (22), and an air outlet body (4) is fixedly connected to the central position of the right side of the housing (28). The air inlet body (3) and the air outlet body (4) are located at the same water surface. An air inlet hole (25) is opened on the left side of the ventilation block (21), and an air outlet hole (26) is opened at the central position of the rear of the ventilation block (21). A mounting hole (29) is opened at the position of the air inlet hole (25) opened on the ventilation block (21), and the closed body (27) is arranged in the mounting hole (29) opened on the ventilation block (21).

3. A sealing valve device for hydrogen storage according to claim 2, characterized in that: The sealed body (27) comprises a sealing cone ring (271), a sealing ring (272), a rubber column (274), a first spring (275), an elastic frame (276), a fixing rod (277) and a limiting ring (278); the sealing cone ring (271) is fixedly connected to the sealing ring (272); the sealing cone ring (271) is provided with evenly distributed through holes (273); the rubber column (274) is arranged in the through holes (273) provided in the sealing ring (272); the first The spring (275) is fixed in the rubber column (274); the elastic frame (276) is arranged in the sealing cone ring (271) and the sealing ring (272); the rubber column (274) is fixed to one side of the elastic frame (276) arranged in the sealing ring (272); two limiting rings (278) are fixedly connected to the outer side of one end of the fixing rod (277) away from the elastic frame (276); and the limiting ring (278) and the fixing rod (277) are both arranged in the rubber column (274).

4. A sealing valve device for hydrogen storage according to claim 3, characterized in that: The elastic frame (276) comprises a fixing ring (2761), an elastic sheet (2763) and a reinforcing plate (2762); the fixing ring (2761) is arranged inside the sealing ring (272); the reinforcing plate (2762) is fixed to a side of the fixing ring (2761) close to the sealing cone ring (271); the elastic sheet (2763) is fixed to a side of the fixing ring (2761) close to the sealing cone ring (271); the reinforcing plate (2762) and the elastic sheet (2763) are arranged in a one-to-one correspondence; the reinforcing plate (2762) and the elastic sheet (2763) are fixedly connected; and the reinforcing plate (2762) and the elastic sheet (2763) are both fixedly connected to the sealing cone ring (271).

5. A sealing valve device for hydrogen storage according to claim 3, characterized in that: The movable body (7) further comprises a sealing body (74). The sealing body (74) is provided on the left side of the buffer body (73). The buffer body (73) comprises a rubber ring (731), a positioning ring (732) and a support ring (733). The sealing body (74) comprises a rubber cone block (741), a cone plate (742), an elastic sheet (743) and a sleeve (744). One side of the rubber ring (731) is tightly fitted with the push rod (71), and the other side of the rubber ring (731) is tightly fitted with the rubber cone block (741). The positioning ring (732) is arranged on a side of the rubber ring (731) close to the push rod (71), and the side of the support ring (733) away from the rubber cone block (741) is fixed to the positioning ring (732). The conical plate (742) is installed in the rubber conical block (741); a sleeve (744) is fixedly connected to the side of the conical plate (742) close to the positioning block (72); a uniformly distributed elastic sheet (743) is fixedly connected to the sleeve (744); the sleeve (744) is arranged in the support ring (733); the sleeve (744) is arranged outside the positioning block (72); a side of the elastic sheet (743) away from the sleeve (744) is arranged in an arc shape; one side of the elastic sheet (743) arranged in an arc shape is tightly fitted with the positioning block (72); the inner diameter of the positioning ring (732) is 0.8 times the diameter of the push rod (71); and the outer diameter of the support ring (733) is 0.95 times the diameter of the push rod (71).

6. A sealing valve device for hydrogen storage according to claim 5, characterized in that: The axes of the push rod (71), the rubber ring (731), the positioning ring (732), the support ring (733), the conical plate (742) and the sleeve (744) are on the same straight line; one side of the rubber cone block (741) is tightly fitted with the air outlet hole (26) provided in the ventilation block (21); the side of the sealing cone ring (271) away from the sealing ring (272) is tightly fitted with the air intake body (3); the side of the rubber column (274) away from the sealing cone ring (271) is tightly fitted with the inner wall of the mounting hole (29) provided in the ventilation block (21); the sealing gasket (22) is arranged on the outside of the rubber ring (731) and the rubber cone block (741); the limiting ring (278) is tightly fitted with the rubber column (274); and the fixing rod (277) is arranged on the inner side of one end of the first spring (275) close to the sealing cone ring (271).

7. A sealing valve device for hydrogen storage according to claim 1, characterized in that: The sealing device (6) comprises a slider (61), a clamping body (62), a sealing cone (63), a sealing plate (64), a mounting ring (65), a positioning ball (66), a spring (67), a second spring (68) and a mounting plate (69); a side of the slider (61) away from the ventilation block (21) is fixedly connected to a fixing plate (5); a side of the fixing plate (5) away from the slider (61) is fixedly connected to a push rod (71); a side of the slider (61) away from the push rod (71) is provided with a mounting groove; the slider (61) is fixedly connected to the clamping body (62) which is evenly distributed through the mounting groove; the sealing cone (63) and the sealing plate (64) are both arranged in the mounting groove provided in the slider (61). The mounting plate (69) is fixedly connected in the sealing cone (63); a second spring (68) is fixedly connected to a side of the sealing cone (63) close to the sealing plate (64); the other end of the second spring (68) is tightly fitted with the slider (61); a mounting ring (65) is fixedly provided on a side of the sealing plate (64) away from the sealing cone (63); a side of the mounting ring (65) close to the sealing plate (64) is fixedly connected to uniformly distributed positioning balls (66); the outer side of the positioning balls (66) is tightly fitted with the sealing plate (64); a side of the sealing plate (64) away from the sealing plate (64) is fixedly connected to uniformly distributed spring leaves (67); the spring leaves (67) are engaged in the engaging body (62).

8. A sealing valve device for hydrogen storage according to claim 7, characterized in that: The engaging body (62) comprises a block (621), one side of the block (621) is provided with an inclined surface (622), the other side of the block (621) is provided with an inclined groove (623), the block (621) and the leaf spring (67) are arranged in a one-to-one correspondence, the leaf spring (67) is arranged in a Z-shape, a protrusion on one side of the leaf spring (67) is engaged in the inclined groove (623) provided in the block (621), and the leaf spring (67) and the block (621) are evenly distributed on the outside of the second spring (68).

9. A sealing valve device for hydrogen storage according to claim 7, characterized in that: The second spring (68) passes through the sealing plate (64); a side of the second spring (68) away from the mounting plate (69) is tightly fitted to the slider (61); and the slider (61) is arranged on the left side of the push rod (71).

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