High-temperature and high-pressure automatic cut-off valve with damping

Abstract

This application belongs to the field of gate valve manufacturing technology, specifically a damped high-temperature and high-pressure automatic gate valve, including a housing, a bracket fixedly connected to the top of the housing, a control component disposed on the upper part of the bracket, a gate component disposed in the middle of the control component, a barrier component fixedly connected to the middle of the inner wall of the housing, the barrier component including a horizontal plate, a funnel-shaped opening in the middle of the horizontal plate, an auxiliary pipe fixedly connected to the top of the horizontal plate, and a sealing gasket fixedly connected to the top of the horizontal plate; this application achieves liquid flow control through the mutual cooperation between the housing, the barrier component, and the gate component, etc. Through the mutual cooperation between the piston plate, the piston hole, and the auxiliary pipe, etc., when the piston plate completely closes the funnel-shaped opening, the liquid generates a damping force through the piston hole, which can make the pressure change of the fluid more gradual, effectively avoid water hammer effect, and is more practical.

Description

Technical Field

[0001] This application belongs to the field of gate valve manufacturing technology, specifically a damped high temperature and high pressure automatic gate valve. Background Technology

[0002] In industries such as petrochemicals and power energy, it is often necessary to transport and control high-temperature and high-pressure fluids. In such cases, shut-off valves are required to control the flow of liquids or gases and ensure the safe and stable operation of the system.

[0003] Some existing traditional high-temperature and high-pressure shut-off valves have the following problems in actual use: when the fluid pressure changes suddenly, the valve opens and closes too quickly, which can easily cause water hammer effect, resulting in severe vibration of the pipeline system and even damage to pipelines, valves and related equipment. Therefore, they are not practical. To solve the above problems, a damped high-temperature and high-pressure automatic shut-off valve is proposed. Utility Model Content

[0004] The purpose of this application is to address the shortcomings of existing technologies by using piston holes on the piston plate to slow down pressure changes within the valve body. This solves the problem that in existing technologies, the valve opening and closing actions are too rapid, which can easily generate water hammer effects, causing severe vibrations in the pipeline system and even damage to pipelines, valves, and related equipment.

[0005] To achieve the above objectives, the following technical solution is adopted:

[0006] A damped high-temperature and high-pressure automatic shut-off valve includes a housing. A bracket is fixedly connected to the top of the housing. A control component is disposed on the upper part of the bracket. A shut-off component is disposed in the middle of the control component. A barrier is fixedly connected to the middle of the inner wall of the housing. The barrier includes a horizontal plate with a funnel-shaped opening in the middle of the horizontal plate. An auxiliary pipe is fixedly connected to the top of the horizontal plate. A sealing gasket is fixedly connected to the top of the horizontal plate. The shut-off component includes an adjusting rod that passes through and is rotatably connected to the housing. A piston plate is fixedly connected to the bottom of the adjusting rod. The piston plate is piston-connected to the auxiliary pipe. Multiple piston holes are disposed in the middle of the piston plate.

[0007] Preferably, a conical block is fixedly connected to the bottom of the piston plate, and the conical block is movably connected to the funnel-shaped opening.

[0008] Preferably, the barrier further includes two inclined plates, which are fixedly connected to the left and right ends of the horizontal plate, respectively.

[0009] Preferably, a sealing ring is fixedly connected to the middle of the funnel-shaped opening.

[0010] Preferably, an inlet pipe is fixedly connected to the left side of the outer casing, and an outlet pipe is fixedly connected to the right side of the outer casing.

[0011] Preferably, the control component includes a connecting cylinder that passes through and is rotatably connected to the bracket, and a handle is fixedly connected to the upper part of the outer wall of the connecting cylinder.

[0012] Preferably, a threaded sleeve is fixedly connected to the middle of the inner wall of the connecting cylinder, and the threaded sleeve is threadedly connected to the adjusting rod.

[0013] Compared with the prior art, this application has the following beneficial effects:

[0014] 1. This application achieves liquid flow control by setting up a shell, a barrier, and a shut-off assembly to cooperate with each other. By cooperating with the piston plate, the piston hole, and the auxiliary pipe, the liquid generates a damping force through the piston hole during the process of the piston plate completely closing the funnel-shaped opening. This makes the pressure change of the fluid more gradual, effectively avoids the water hammer effect, and is more practical.

[0015] 2. This application improves the sealing effect between the stop assembly and the barrier by setting up the interaction between the piston plate and the sealing gasket, the conical block and the funnel-shaped opening and the sealing ring, which can effectively improve the practicality of the valve body. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this application;

[0017] Figure 2 This is a cross-sectional schematic diagram of this application;

[0018] Figure 3 for Figure 2 Enlarged 3D diagram at point A in the middle;

[0019] Figure 4 This is a schematic diagram showing the breakdown of the control component and the cutoff component in this application.

[0020] The components are as follows: 1. Outer shell; 2. Support; 3. Cut-off assembly; 4. Control assembly; 11. Inlet pipe; 12. Outlet pipe; 13. Barrier component; 14. Auxiliary pipe; 131. Horizontal plate; 132. Inclined plate; 133. Funnel-shaped opening; 134. Sealing ring; 135. Sealing gasket; 31. Adjusting rod; 32. Piston plate; 321. Piston hole; 322. Conical block; 41. Connecting cylinder; 42. Threaded sleeve; 43. Handle. Detailed Implementation

[0021] Reference Figures 1-4A damped high-temperature and high-pressure automatic shut-off valve includes a housing 1, a bracket 2 fixedly connected to the top of the housing 1, a control component 4 disposed on the upper part of the bracket 2, a shut-off component 3 disposed in the middle of the control component 4, a barrier 13 fixedly connected to the middle of the inner wall of the housing 1, the barrier 13 includes a horizontal plate 131, a funnel-shaped opening 133 opened in the middle of the horizontal plate 131, an auxiliary pipe 14 fixedly connected to the top of the horizontal plate 131, and a sealing gasket 135 fixedly connected to the top of the horizontal plate 131. The shut-off component 3 includes an adjusting rod 31, which penetrates through and is rotatably connected to the housing 1, a piston plate 32 fixedly connected to the bottom of the adjusting rod 31, the piston plate 32 being piston-connected to the auxiliary pipe 14, and a plurality of piston holes 321 opened in the middle of the piston plate 32.

[0022] In this embodiment, during use, when the control component 4 controls the shut-off component 3 to move downward, the liquid that enters the valve body from the left side of the valve body will enter the right side of the valve body through the funnel-shaped opening 133. As the shut-off component 3 moves downward, the piston plate 32 will gradually block the funnel-shaped opening 133. As the shut-off component 3 moves downward, the pressure of the liquid through the funnel-shaped opening 133 will increase. Since the piston plate 32 has a piston hole 321, the liquid can flow through the piston hole 321. When the liquid passes through the piston hole 321, it will generate a damping force, which can slow down the change in fluid pressure and provide a certain buffer. When the piston plate 32 abuts against the sealing gasket 135 on the upper part of the horizontal plate 131, the piston hole 321 will be blocked, thereby closing the valve body.

[0023] As a preferred embodiment, a conical block 322 is fixedly connected to the bottom of the piston plate 32. The conical block 322 is movably connected to the funnel-shaped opening 133. The upper diameter of the funnel-shaped opening 133 is larger than the upper diameter of the conical block 322, so that when the conical block 322 is pressed against the sealing ring 134, there is space for the sealing ring 134 to deform, thereby ensuring the sealing performance of the valve body. The lower diameter of the funnel-shaped opening 133 is matched with the lower diameter of the conical block 322, so that the conical block 322 can block the funnel-shaped opening 133.

[0024] As a preferred embodiment, the barrier 13 also includes two inclined plates 132, with the two inclined plates 132 having the same inclination angle and direction. The two inclined plates 132 are fixedly connected to the left and right ends of the horizontal plate 131, respectively, and the barrier 13 divides the interior of the valve body into two parts.

[0025] As a preferred embodiment, a sealing ring 134 is fixedly connected to the middle of the funnel-shaped opening 133, which is used to cooperate with the conical block 322 for sealing.

[0026] As a preferred embodiment, an inlet pipe 11 is fixedly connected to the left side of the outer casing 1 for liquid inlet, and it is connected to the lower left side of the valve body. An outlet pipe 12 is fixedly connected to the right side of the outer casing 1 for liquid outlet, and it is connected to the upper right side of the valve body.

[0027] As a preferred embodiment, the control component 4 includes a connecting cylinder 41 for connecting various components. The connecting cylinder 41 is rotatably connected to the bracket 2 through it. A handle 43 is fixedly connected to the upper part of the outer wall of the connecting cylinder 41 for rotating the connecting cylinder 41.

[0028] As a preferred embodiment, a threaded sleeve 42 is fixedly connected to the middle of the inner wall of the connecting cylinder 41. The threaded sleeve 42 is threadedly connected to the adjusting rod 31. The threaded sleeve 42 drives the adjusting rod 31 to move up and down by rotating on its own.

Claims

1. A high temperature and high pressure automatic shut-off valve with damping, comprising a housing (1), characterized in that, A bracket (2) is fixedly connected to the top of the outer shell (1). A control component (4) is provided on the upper part of the bracket (2). A stop component (3) is provided in the middle of the control component (4). A barrier (13) is fixedly connected to the middle of the inner wall of the outer shell (1). The barrier (13) includes a horizontal plate (131). A funnel-shaped opening (133) is opened in the middle of the horizontal plate (131). An auxiliary tube (14) is fixedly connected to the top of the horizontal plate (131). A sealing gasket (135) is fixedly connected to the top of the horizontal plate (131). The stop component (3) includes an adjusting rod (31). The adjusting rod (31) passes through and is rotatably connected to the outer shell (1). A piston plate (32) is fixedly connected to the bottom of the adjusting rod (31). The piston plate (32) is piston-connected to the auxiliary tube (14). A piston hole (321) is opened in the middle of the piston plate (32), and the number of holes is multiple.

2. The damped high-temperature and high-pressure automatic shut-off valve according to claim 1, characterized in that, A conical block (322) is fixedly connected to the bottom of the piston plate (32), and the conical block (322) is movably connected to the funnel-shaped opening (133).

3. The damped high-temperature and high-pressure automatic shut-off valve according to claim 1, characterized in that, The barrier (13) also includes two inclined plates (132), which are fixedly connected to the left and right ends of the horizontal plate (131), respectively.

4. The damped high-temperature and high-pressure automatic shut-off valve according to claim 1, characterized in that, A sealing ring (134) is fixedly connected to the middle of the funnel-shaped opening (133).

5. The damped high-temperature and high-pressure automatic shut-off valve according to claim 1, characterized in that, An inlet pipe (11) is fixedly connected to the left side of the outer shell (1), and an outlet pipe (12) is fixedly connected to the right side of the outer shell (1).

6. The damped high-temperature and high-pressure automatic shut-off valve according to claim 1, characterized in that, The control component (4) includes a connecting cylinder (41), which is connected to the bracket (2) through and rotatably. A handle (43) is fixedly connected to the upper part of the outer wall of the connecting cylinder (41).

7. The damped high-temperature and high-pressure automatic shut-off valve according to claim 6, characterized in that, A threaded sleeve (42) is fixedly connected to the middle of the inner wall of the connecting cylinder (41), and the threaded sleeve (42) is threadedly connected to the adjusting rod (31).

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