Hydrogen outlet header emergency shut-off valve

Abstract

This utility model relates to the field of gas transportation safety control technology, and discloses an emergency shut-off valve for a hydrogen outlet main pipe, including a hydrogen outlet pipe and a drive motor valve body. The drive motor valve body is fixedly connected to the top inner wall of the hydrogen outlet pipe. A remote signal controller body is fixedly connected to the right inner wall of the drive motor valve body. An adjustment mechanism is provided on the drive motor valve body, and an auxiliary mechanism is provided on the adjustment mechanism. A rotating rod is fixedly connected to the output end of the drive motor valve body via a coupling. An adjustment disc is fixedly connected to the top of the rotating rod. A telescopic hydraulic cylinder is fixedly connected to the left inner wall of the adjustment disc, and a movable plate is slidably connected to the left inner wall of the adjustment disc. In this utility model, by setting a remote signal control component, an external signal can be received and the power component can be activated when an emergency shut-off is required. The shut-off operation can be completed without personnel going to the site, effectively avoiding personnel exposure in a dangerous environment and reducing safety risks.

Description

Technical Field

[0001] This utility model relates to the field of gas transportation safety control technology, and in particular to an emergency shut-off valve for a hydrogen outlet main pipe. Background Technology

[0002] Hydrogen has an ignition point of 574°C. It is an extremely flammable gas, capable of combustion in air at concentrations ranging from 4% to 75% by volume. Pure hydrogen has an ignition temperature of 400°C. If hydrogen is mixed into air and its volume reaches 4% to 74.2% of the total volume, an explosion will occur upon ignition; this range is called the explosive limits of hydrogen. The flash point of hydrogen is -253°C or -423.4°F.

[0003] Flash point refers to the lowest temperature at which a liquid or gas can become instantaneously flammable under certain conditions. When the temperature of a liquid or gas reaches or exceeds its flash point, it will produce an open flame or flash. Hydrogen is a highly flammable gas with a wide range of applications, such as in industry, energy, and aerospace. Due to its extremely low flash point, hydrogen must be handled, stored, and used in strict accordance with safety regulations and standards to prevent the danger of fire and explosion.

[0004] The hydrogen outlet manifold has the following defects: when a large amount of hydrogen leaks, the device may catch fire and explode, which may affect downstream enterprises and require personnel to shut it off in time. However, it takes time for personnel to arrive at the scene, and the delay increases the probability of explosion. Therefore, an emergency shut-off valve for the hydrogen outlet manifold is proposed to solve the above problems. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides an emergency shut-off valve for the hydrogen outlet main pipe, which aims to improve the existing technology where personnel need to shut it off in a timely manner, but it takes time for personnel to arrive at the scene, and the delay increases the probability of explosion.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: an emergency shut-off valve for a hydrogen outlet main pipe, comprising a hydrogen outlet pipe and a drive valve body. The drive valve body is fixedly connected to the top inner wall of the hydrogen outlet pipe. A remote signal controller body is fixedly connected to the right inner wall of the drive valve body. An adjustment mechanism is provided on the drive valve body, and an auxiliary mechanism is provided on the adjustment mechanism. A rotating rod is fixedly connected to the output end of the drive valve body via a coupling. An adjustment disc is fixedly connected to the top of the rotating rod. A telescopic hydraulic cylinder is fixedly connected to the left inner wall of the adjustment disc. A movable plate is slidably connected to the left inner wall of the adjustment disc. A limit rod is fixedly connected to the bottom outer wall of the movable plate. A semi-circular cover is fixedly connected to the side outer wall of the limit rod. A sealing ring is fixedly connected to the right outer wall of the semi-circular cover.

[0007] As a further description of the above technical solution: the auxiliary mechanism includes a pointing mark, which is opened on the top inner wall of the adjustment plate. The side outer wall of the adjustment plate is provided with a groove. A support rod is fixedly connected to the top outer wall of the movable plate. A compression spring is fixedly connected to the top outer wall of the movable plate. A pull plate is fixedly connected to the top end of the support rod.

[0008] As a further description of the above technical solution: the adjusting disc is rotatably connected to the top outer wall of the drive motor valve body via a bearing, and a wear-resistant sleeve is fixedly connected to the side outer wall of the limiting rod.

[0009] As a further description of the above technical solution: the limiting rod is engaged with the top inner wall of the drive motor valve body, and the output end of the telescopic hydraulic cylinder contacts the bottom outer wall of the movable plate.

[0010] As a further description of the above technical solution: the semi-circular cover is slidably connected to the inner wall of the hydrogen outlet pipe, and the sealing ring contacts the inner wall of the hydrogen outlet pipe.

[0011] As a further description of the above technical solution: the top outer wall of the directional marker is fixedly connected with a display coating.

[0012] As a further description of the above technical solution: the end of the compression spring away from the movable plate is fixedly connected to the top inner wall of the adjustment plate, and a silicone sleeve is fixedly connected to the outer side wall of the pull plate.

[0013] This utility model has the following beneficial effects:

[0014] 1. In this utility model, by setting a remote signal control component, an external signal can be received and the power component can be activated when an emergency cut-off is required. The cut-off operation can be completed without personnel going to the site, effectively avoiding personnel exposure in dangerous environments and reducing safety risks. At the same time, during the cut-off process, the semi-circular sealing component fits against the inner wall of the pipeline, and the elastic sealing element enhances the sealing effect, which can effectively prevent hydrogen leakage and further ensure the safety of hydrogen transportation. In addition, through the cooperation of the limiting component and the power valve body, the adjusting component can be prevented from rotating on its own when not in operation, ensuring that the cut-off valve remains stable when stationary, reducing safety hazards caused by malfunction.

[0015] 2. In this utility model, the marking coating allows personnel to directly observe the rotation state and angle of the adjusting component upon subsequent arrival, quickly determining the opening and closing status of the valve body without additional disassembly and inspection, thus improving the convenience and accuracy of status judgment. Simultaneously, the adjusting component has a groove on its side to increase friction, which, combined with the pull component featuring a non-slip comfort sleeve, facilitates manual operation and improves grip comfort, reducing the difficulty of manual operation. Furthermore, the elastic reset component can push the moving component back to its original position when the power component stops working, automatically restoring the limit component to its limit state, reducing manual reset steps and further enhancing ease of use. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall front view of an emergency shut-off valve for a hydrogen outlet main pipe proposed in this utility model.

[0017] Figure 2 This is a cross-sectional schematic diagram of an emergency shut-off valve for a hydrogen outlet main pipe proposed in this utility model.

[0018] Figure 3 This is a schematic diagram of the regulating mechanism of an emergency shut-off valve for a hydrogen outlet main pipe according to the present invention.

[0019] Figure 4 This is a schematic diagram of the auxiliary mechanism of an emergency shut-off valve for a hydrogen outlet main pipe proposed in this utility model.

[0020] Legend:

[0021] 1. Hydrogen outlet pipe; 2. Drive valve body; 3. Remote signal controller body; 4. Adjustment mechanism; 41. Rotary rod; 42. Adjustment disc; 43. Telescopic hydraulic cylinder; 44. Movable plate; 45. Limiting rod; 46. Semi-circular cover; 47. Sealing ring; 5. Auxiliary mechanism; 51. Indicator mark; 52. Groove; 53. Support rod; 54. Compression spring; 55. Pull plate. Detailed Implementation

[0022] 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.

[0023] Reference Figures 1-3This utility model provides an embodiment of an emergency shut-off valve for a hydrogen outlet main pipe, comprising a hydrogen outlet pipe 1 and a drive valve body 2. The drive valve body 2 is fixedly connected to the top inner wall of the hydrogen outlet pipe 1. A remote signal controller body 3 is fixedly connected to the right inner wall of the drive valve body 2. An adjustment mechanism 4 is provided on the drive valve body 2, and an auxiliary mechanism 5 is provided on the adjustment mechanism 4. A rotating rod 41 is fixedly connected to the output end of the drive valve body 2 via a coupling. An adjustment disc 42 is fixedly connected to the top of the rotating rod 41. A telescopic hydraulic device is fixedly connected to the left inner wall of the adjustment disc 42. A movable plate 44 is slidably connected to the left inner wall of cylinder 43 and adjusting plate 42. The movable plate 44 can slide within the adjusting plate 42, thereby driving the limiting rod 45 to move. The limiting rod 45 is fixedly connected to the bottom outer wall of the movable plate 44. A semi-circular cover 46 is fixedly connected to the side outer wall of the limiting rod 45. The semi-circular cover 46 can be rotated to cover or open the outlet of the hydrogen outlet pipe 1 to cut off or open the hydrogen supply. A sealing ring 47 is fixedly connected to the right outer wall of the semi-circular cover 46. The sealing ring 47 can enhance the sealing between the semi-circular cover 46 and the inner wall of the hydrogen outlet pipe 1 to prevent hydrogen leakage.

[0024] Reference Figures 2-4 The adjusting disc 42 is rotatably connected to the top outer wall of the drive valve body 2 via a bearing. A wear-resistant sleeve is fixedly connected to the side outer wall of the limiting rod 45. The wear-resistant sleeve can reduce the wear when the limiting rod 45 contacts the drive valve body 2 and extend the service life of the limiting rod 45. The limiting rod 45 is snapped into the top inner wall of the drive valve body 2. The output end of the telescopic hydraulic cylinder 43 contacts the bottom outer wall of the movable plate 44. The semi-circular cover 46 is slidably connected to the inner wall of the hydrogen outlet pipe 1. The sealing ring 47 contacts the inner wall of the hydrogen outlet pipe 1.

[0025] Reference Figures 3-4 The auxiliary mechanism 5 includes a pointing mark 51, which is located on the top inner wall of the adjusting plate 42. The pointing mark 51 is used to indicate the rotation state and angle of the adjusting plate 42, making it convenient for personnel to observe the opening and closing of the shut-off valve. The side outer wall of the adjusting plate 42 is provided with a groove 52, which can increase the friction between the hand and the adjusting plate 42, making it convenient for personnel to manually operate the adjusting plate 42. The top outer wall of the movable plate 44 is fixedly connected to a support rod 53, and the top outer wall of the movable plate 44 is fixedly connected to a compression spring 54. The top end of the support rod 53 is fixedly connected to a pull plate 55. The top outer wall of the pointing mark 51 is fixedly connected to a display coating, which can enhance the visibility of the pointing mark 51, making it easier for personnel to observe. The end of the compression spring 54 away from the movable plate 44 is fixedly connected to the top inner wall of the adjusting plate 42. The side outer wall of the pull plate 55 is fixedly connected to a silicone sleeve, which can increase the friction between the hand and the pull plate 55, and at the same time improve the comfort of holding.

[0026] Working principle: When an emergency shut-off is required, the remote signal controller body 3 receives a signal to activate the telescopic hydraulic cylinder 43, which pushes the movable plate 44 upward. The movement of the movable plate 44 causes the limit rod 45 to move. The limit rod 45 moves and separates from the inner wall of the top of the drive valve body 2, releasing the rotation limit. Then, the drive valve body 2 is activated, causing the drive valve body 2 to drive the rotating rod 41 to rotate 90 degrees. The rotation of the rotating rod 41 causes the semi-circular cover 46 to rotate, so that the semi-circular surface of the semi-circular cover 46 covers the outlet of the hydrogen outlet pipe 1. At the same time, the sealing ring 47, together with the semi-circular cover 46, adheres to the inner wall of the hydrogen outlet pipe 1, enhancing the sealing effect. The valve body can be closed without personnel arriving on site. When personnel arrive later to observe, they can observe the indicator mark 51 to see if the regulating disc 42 is rotating and the rotation angle, ensuring the valve body is open or closed. The limit rod 45 limits the movement of the regulating disc 42 by the inner wall of the top of the drive valve body 2, preventing the regulating disc 42 from rotating on its own.

[0027] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present 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 the present utility model should be included within the protection scope of the present utility model.

Claims

1. An emergency shut-off valve for a hydrogen outlet main pipe, comprising a hydrogen outlet pipe (1) and a drive valve body (2), characterized in that: The drive valve body (2) is fixedly connected to the top inner wall of the hydrogen outlet pipe (1). The right inner wall of the drive valve body (2) is fixedly connected to the main body (3) of the remote signal controller. The drive valve body (2) is provided with an adjustment mechanism (4). The adjustment mechanism (4) is provided with an auxiliary mechanism (5). The output end of the drive valve body (2) is fixedly connected to a rotating rod (41) via a coupling. The top end of the rotating rod (41) is fixedly connected to an adjusting disc (42). The left inner wall of the adjusting disc (42) is fixedly connected to a telescopic hydraulic cylinder (43). The left inner wall of the adjusting disc (42) is slidably connected to a movable plate (44). The bottom outer wall of the movable plate (44) is fixedly connected to a limit rod (45). The side outer wall of the limit rod (45) is fixedly connected to a semi-circular cover (46). The right outer wall of the semi-circular cover (46) is fixedly connected to a sealing ring (47).

2. The emergency shut-off valve for the hydrogen outlet main pipe according to claim 1, characterized in that: The auxiliary mechanism (5) includes a pointing mark (51), which is located on the top inner wall of the adjustment plate (42). The side outer wall of the adjustment plate (42) is provided with a groove (52). A support rod (53) is fixedly connected to the top outer wall of the movable plate (44). A compression spring (54) is fixedly connected to the top outer wall of the movable plate (44). A pull plate (55) is fixedly connected to the top end of the support rod (53).

3. The emergency shut-off valve for the hydrogen outlet main pipe according to claim 1, characterized in that: The adjusting disc (42) is rotatably connected to the top outer wall of the drive valve body (2) via a bearing, and a wear-resistant sleeve is fixedly connected to the side outer wall of the limiting rod (45).

4. The emergency shut-off valve for the hydrogen outlet main pipe according to claim 1, characterized in that: The limiting rod (45) is engaged with the top inner wall of the drive valve body (2), and the output end of the telescopic hydraulic cylinder (43) contacts the bottom outer wall of the movable plate (44).

5. The emergency shut-off valve for the hydrogen outlet main pipe according to claim 1, characterized in that: The semi-circular cover (46) is slidably connected to the inner wall of the hydrogen outlet pipe (1), and the sealing ring (47) contacts the inner wall of the hydrogen outlet pipe (1).

6. The emergency shut-off valve for the hydrogen outlet main pipe according to claim 2, characterized in that: The top outer wall of the directional marker (51) is fixedly connected with a display coating.

7. The emergency shut-off valve for the hydrogen outlet main pipe according to claim 2, characterized in that: The end of the compression spring (54) away from the movable plate (44) is fixedly connected to the top inner wall of the adjustment plate (42), and a silicone sleeve is fixedly connected to the side outer wall of the pull plate (55).

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