LNG gate valve

Abstract

This utility model relates to the field of gate valve technology and discloses an LNG gate valve, including a valve tube. A filter module is movably engaged with the inner wall of the valve tube. A rubber block is fixedly connected to the inner wall of the valve tube. A discharge channel is formed on the inner bottom wall of the valve tube. A sealing door is rotatably connected to the inner wall of the discharge channel. An installation plate is fixedly connected to the outer wall of the sealing door. A bearing is embedded in the bottom of the installation plate. A bolt is fixedly sleeved on the inner ring of the bearing. An air bladder is fixedly connected to the inner wall of the discharge channel. This utility model uses bolts threaded to connect to the outside of the valve tube to fix the sealing door. The filter module can filter impurities in the water, thereby filtering impurities inside the valve tube. As a result, water passing through the valve tube will not contain many impurities. This device can filter fluid, thus preventing the inner wall of the gate valve from being blocked by impurities during long-term flow, thereby extending the service life of the device.

Description

Technical Field

[0001] This utility model relates to the field of gate valves, specifically an LNG gate valve. Background Technology

[0002] As is well known, a gate valve is an opening and closing element consisting of a gate. The direction of movement of the gate is perpendicular to the direction of fluid flow. Gate valves can only be fully open or fully closed, and cannot be used for regulation or throttling. Gate valves achieve sealing through the contact between the valve seat and the gate. Usually, the sealing surface is overlaid with metal materials to increase wear resistance, such as 1Cr13, STL6, stainless steel, etc. Gates can be rigid or resilient. Based on the different gates, gate valves are divided into rigid gate valves and resilient gate valves.

[0003] However, most LNG gate valves currently on the market cannot filter fluids, which can lead to the valve's inner wall becoming clogged with impurities over time, thus greatly reducing the device's lifespan. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] To address the shortcomings of existing technologies, this utility model provides an LNG gate valve that enables the device to filter fluids, preventing the inner wall of the gate valve from becoming clogged with impurities during prolonged flow, thereby extending the service life of the device. This solves the problem that LNG gate valves cannot filter fluids, leading to clogging of the inner wall of the gate valve with impurities during prolonged flow, which greatly reduces the service life of the device.

[0006] (II) Technical Solution

[0007] To achieve the goal of filtering fluids and preventing the gate valve's inner wall from becoming clogged with impurities during prolonged flow, thus extending the device's service life, this utility model provides the following technical solution: An LNG gate valve includes a valve tube. A filter module is movably engaged with the inner wall of the valve tube. A rubber block is fixedly connected to the inner wall of the valve tube. A discharge channel is formed on the inner bottom wall of the valve tube. A sealing door is rotatably connected to the inner wall of the discharge channel. An mounting plate is fixedly connected to the outer wall of the sealing door. A bearing is embedded in the bottom of the mounting plate. A bolt is fixedly sleeved on the inner ring of the bearing. An air bladder is fixedly connected to the inner wall of the discharge channel. An air pipe is fixedly connected to one side of the air bladder. The sealing door is fixed by bolt threaded connection to the outside of the valve tube. The filter module can filter impurities in the water, thereby filtering impurities inside the valve tube. As a result, water passing through the valve tube will not contain many impurities. This device can filter fluids, preventing the gate valve's inner wall from becoming clogged with impurities during prolonged flow, thus extending the device's service life.

[0008] As a preferred technical solution of this utility model, the air pipe is fixedly connected to the valve pipe, and a sealing cap is movably snapped onto one end of the air pipe. By removing the sealing cap, air can be pumped into the air pipe, thereby causing the airbag to inflate. The airbag will fill the gap between the sealing door and the discharge channel, achieving a seal, and the discharge channel will not leak water.

[0009] As a preferred technical solution of this utility model, a first mesh plate is fixedly connected to the inner wall of the valve tube, and a second mesh plate is fixedly connected to the inner wall of the valve tube. The first mesh plate and the second mesh plate can limit the position of the filter module, and the filter module will not change position on the inner wall of the valve tube.

[0010] As a preferred technical solution of this utility model, the rubber block has a groove inside, and a spring is fixedly connected to the inner wall of the groove. The spring can make the elasticity and recovery force of the rubber block better. After the sealing door is removed, the elasticity of the rubber block will push the outer wall of the filter module out of the valve pipe, so that the filter module can be replaced.

[0011] As a preferred technical solution of this utility model, the outer wall of the valve tube is provided with a threaded groove, and the bolt is threadedly connected to the threaded groove. The bolt is threadedly connected to the outside of the valve tube to fix the sealing door.

[0012] As a preferred embodiment of this utility model, a valve component is fixedly connected to the top of the valve pipe, a valve block is slidably connected to the inner wall of the valve pipe, a valve stem is provided on the top of the valve block, and a valve is fixedly connected to the top of the valve stem. The control valve can drive the valve stem to rotate, which in turn can drive the valve block to move, so that a gap is left between the valve block and the valve pipe, thereby realizing water flow.

[0013] (III) Beneficial Effects

[0014] Compared with the prior art, the present invention provides an LNG gate valve, which has the following beneficial effects:

[0015] 1. The sealing gate is fixed to the outside of the valve pipe by bolt thread connection. The filter module can filter impurities in the water, and thus filter impurities inside the valve pipe. As a result, there will not be many impurities inside the water when it passes through the valve pipe. This device can filter the fluid, so the inner wall of the gate valve will not be blocked by impurities during long-term flow, thereby extending the service life of the device.

[0016] 2. By removing the sealing cap, air can be pumped into the air pipe, causing the airbag to inflate. The airbag fills the gap between the sealing door and the discharge channel, achieving a seal and preventing water leakage from the discharge channel. This improves the sealing effect of the device and further meets the usage requirements, making it worthy of promotion.

[0017] 3. The rubber block has an internal spring, which makes the rubber block more elastic and restoring. After the sealing door is removed, the elasticity of the rubber block will push the outer wall of the filter module out of the valve pipe, so that the filter module can be replaced, thereby extending the service life of the device and improving its practicality. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of an LNG gate valve;

[0019] Figure 2 This is a cross-sectional view of an LNG gate valve;

[0020] Figure 3 This is a cross-sectional view of the valve tube in this application;

[0021] Figure 4 for Figure 3 Enlarged view of the structure at point A in the middle.

[0022] In the diagram: 1. Valve pipe; 2. Valve component; 3. Valve; 4. Valve stem; 5. Valve block; 6. First mesh plate; 7. Second mesh plate; 8. Filter module; 9. Rubber block; 10. Groove; 11. Spring; 12. Discharge channel; 13. Sealing door; 14. Mounting plate; 15. Bearing; 16. Bolt; 17. Threaded groove; 18. Air pipe; 19. Sealing cap; 20. Airbag. Detailed Implementation

[0023] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0024] Example 1

[0025] Reference Figure 1-4This is the first embodiment of the present invention, which provides an LNG gate valve, including a valve pipe 1. A filter module 8 is movably snapped onto the inner wall of the valve pipe 1. The filter module 8 can filter impurities in the water, thereby filtering impurities inside the valve pipe 1. A rubber block 9 is fixedly connected to the inner wall of the valve pipe 1. A discharge channel 12 is opened on the inner bottom wall of the valve pipe 1. A sealing door 13 is rotatably connected to the inner wall of the discharge channel 12. An installation plate 14 is fixedly connected to the outer wall of the sealing door 13. A bearing 15 is embedded in the bottom of the installation plate 14. A bolt 16 is fixedly sleeved on the inner ring of the bearing 15. An air bladder 20 is fixedly connected to the inner wall of the discharge channel 12. An air pipe 18 is fixedly connected to one side of the air bladder 20.

[0026] The air pipe 18 is fixedly connected to the valve pipe 1, and one end of the air pipe 18 is movably snapped with a sealing cap 19. After removing the sealing cap 19, the air pipe 18 can be inflated, which in turn causes the air bag 20 to inflate. The air bag 20 will fill the gap between the sealing door 13 and the discharge channel 12, achieving a seal and preventing water leakage from the discharge channel 12.

[0027] A first mesh plate 6 is fixedly connected to the inner wall of valve pipe 1, and a second mesh plate 7 is fixedly connected to the inner wall of valve pipe 1. The first mesh plate 6 and the second mesh plate 7 can limit the position of filter module 8, and the filter module 8 will not change position on the inner wall of valve pipe 1.

[0028] The rubber block 9 has a groove 10 inside, and a spring 11 is fixedly connected to the inner wall of the groove 10. The spring 11 can make the rubber block 9 more elastic and restoring. After the sealing door 13 is removed, the elasticity of the rubber block 9 will push the outer wall of the filter module 8 out of the valve pipe 1, so that the filter module 8 can be replaced.

[0029] The outer wall of the valve pipe 1 is provided with a threaded groove 17, and the bolt 16 is threadedly connected to the threaded groove 17. The bolt 16 is threadedly connected to the outside of the valve pipe 1 to fix the sealing door 13.

[0030] During use, the sealing door 13 is fixed to the outside of the valve pipe 1 by bolt 16 threaded connection. The filter module 8 can filter impurities in the water, and thus filter impurities inside the valve pipe 1. As a result, there will not be many impurities inside the water when it passes through the valve pipe 1. This device can filter the fluid, so that the inner wall of the gate valve will not be blocked by impurities during long-term flow.

[0031] Example 2

[0032] Reference Figure 1-4In the second embodiment of this utility model, a valve component 2 is fixedly connected to the top of the valve pipe 1, and a valve block 5 is slidably connected to the inner wall of the valve pipe 1. A valve stem 4 is provided on the top of the valve block 5, and a valve 3 is fixedly connected to the top of the valve stem 4. Controlling the valve 3 can drive the valve stem 4 to rotate, which in turn can drive the valve block 5 to move, so that there is a gap between the valve block 5 and the valve pipe 1, thereby realizing water flow.

[0033] During use, the control valve 3 can drive the valve stem 4 to rotate, which in turn drives the valve block 5 to move, leaving a gap between the valve block 5 and the valve pipe 1, thereby enabling water flow and making it easier to control the water flow inside the valve pipe 1.

[0034] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. An LNG gate valve, comprising a valve pipe (1), characterized in that: The inner wall of the valve tube (1) is movably connected to a filter module (8), and the inner wall of the valve tube (1) is fixedly connected to a rubber block (9). The inner bottom wall of the valve tube (1) is provided with a discharge channel (12). The inner wall of the discharge channel (12) is rotatably connected to a sealing door (13). The outer wall of the sealing door (13) is fixedly connected to an installation plate (14). The bottom of the installation plate (14) is inlaid with a bearing (15). The inner ring of the bearing (15) is fixedly sleeved with a bolt (16). The inner wall of the discharge channel (12) is fixedly connected to an air bladder (20). One side of the air bladder (20) is fixedly connected to an air pipe (18).

2. An LNG gate valve according to claim 1, characterized in that: The air pipe (18) is fixedly connected to the valve pipe (1), and a sealing cap (19) is movably snapped onto one end of the air pipe (18).

3. An LNG gate valve according to claim 2, characterized in that: The inner wall of the valve tube (1) is fixedly connected to a first mesh plate (6), and the inner wall of the valve tube (1) is fixedly connected to a second mesh plate (7).

4. An LNG gate valve according to claim 3, characterized in that: The rubber block (9) has a groove (10) inside, and a spring (11) is fixedly connected to the inner wall of the groove (10).

5. An LNG gate valve according to claim 4, characterized in that: The outer wall of the valve pipe (1) is provided with a threaded groove (17), and the bolt (16) is threadedly connected to the threaded groove (17).

6. An LNG gate valve according to claim 5, characterized in that: A valve component (2) is fixedly connected to the top of the valve pipe (1), a valve block (5) is slidably connected to the inner wall of the valve pipe (1), a valve stem (4) is provided on the top of the valve block (5), and a valve (3) is fixedly connected to the top of the valve stem (4).

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