Ultra-high pressure anti-scour gate valve

Abstract

The utility model discloses an ultra-high pressure anti-scour gate valve, and relates to the field of gate valves. The ultra-high pressure anti-scour gate valve comprises a gate valve body, the bottom of the gate valve body is provided with an embedded groove and a sealing groove, the inner movable clamp of the embedded groove is connected with a positioning clamp seat, the inner movable clamp of the positioning clamp seat is connected with a wear-resistant bushing, the inner movable clamp of the sealing groove is connected with a sealing plate, and the gate valve body is provided with an adjustment mechanism for positionally driving the sealing plate. The ultra-high pressure anti-scour gate valve is provided with a positioning clamp seat inside the gate valve body and a wear-resistant and easy-to-replace wear-resistant bushing inside the positioning clamp seat, the wear-resistant bushing has a smooth surface and small resistance, so that the internal anti-scour ability of the gate valve body is strong, high pressure resistant, and not easy to be damaged. Even if the wear-resistant bushing is damaged, the design of the sealing plate and the adjustment mechanism makes it easy to replace the wear-resistant bushing without replacing the entire gate valve body, and the maintenance cost is low, thereby ensuring that the ultra-high pressure anti-scour ability of the gate valve body is strong.

Description

Technical Field

[0001] The utility model relates to the technical field of gate valves, in particular to an ultra-high pressure anti-scour gate valve. Background Art

[0002] The opening and closing parts of the gate valve are the gate disc, which is sealed by the contact between the valve seat and the gate disc. The movement direction of the gate disc is perpendicular to the direction of the fluid. The gate valve can only be fully opened and fully closed, and cannot be adjusted or throttled.

[0003] When the gate valve is opened, the medium flows from the inlet channel to the outlet channel. During the flow of the medium, a scouring force is generated on the inner wall of the gate valve. After a long time, the inner wall of the gate valve may be worn. Traditional gate valves usually do not have ultra-high pressure scouring resistance. During use, they have a short lifespan and are easily damaged. The entire gate valve needs to be replaced during maintenance, and the replacement and maintenance costs are high. In view of the shortcomings of the prior art, the utility model provides an ultra-high pressure scouring resistance gate valve to solve the above problems. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model provides an ultra-high pressure erosion-resistant gate valve, in which a positioning card seat is arranged inside the gate valve body and a wear-resistant and easily replaceable wear-resistant bushing is arranged inside the positioning card seat. The surface of the wear-resistant bushing is smooth and the resistance is small, so that the inside of the gate valve body has strong erosion resistance, high pressure resistance and is not easy to be damaged. Even if the wear-resistant bushing is damaged, the design of the sealing plate and the adjustment mechanism makes it easy to replace the wear-resistant bushing without replacing the entire gate valve body, and the maintenance cost is low, thereby ensuring that the gate valve body has strong ultra-high pressure erosion resistance.

[0005] To achieve the above purpose, the utility model is implemented through the following technical solutions: an ultra-high pressure anti-scour gate valve comprises a gate valve body, the bottom of which is provided with an embedded groove and a sealing groove;

[0006] The inner movably clamped part of the inner embedded groove is connected with a positioning clamping seat, and the inner movably clamped part of the positioning clamping seat is connected with a wear-resistant bushing;

[0007] A sealing plate is movably clamped inside the sealing groove, and an adjusting mechanism for driving the position of the sealing plate is provided on the gate valve body.

[0008] Preferably, the regulating mechanism comprises a supporting and positioning frame fixedly connected to the gate valve body, and a baffle is fixedly connected to the supporting and positioning frame;

[0009] The baffle is threadedly connected with a screw rod, the screw rod is rotatably connected with a movable plate, the movable plate is slidably connected to the supporting positioning frame, and the movable plate is fixedly connected to the sealing plate.

[0010] Preferably, a rotating handle is fixedly connected to the screw rod.

[0011] Preferably, a gate plate groove is provided on the positioning card seat and the wear-resistant bushing, a gate plate body is provided inside the gate valve body, and the gate plate body is movably inserted in the gate plate groove.

[0012] Preferably, flanges are fixedly connected to both sides of the gate valve body.

[0013] Preferably, the wear-resistant bushing is made of polytetrafluoroethylene.

[0014] The utility model discloses an ultra-high pressure anti-scouring gate valve, which has the following beneficial effects:

[0015] The ultra-high-pressure erosion-resistant gate valve has a positioning card seat inside the gate valve body and a wear-resistant and easily replaceable wear-resistant bushing inside the positioning card seat. The surface of the wear-resistant bushing is smooth and has low resistance, so that the inside of the gate valve body has strong erosion resistance, high pressure resistance, and is not easy to damage. Even if the wear-resistant bushing is damaged, the design of the sealing plate and the adjustment mechanism makes it easy to replace the wear-resistant bushing without replacing the entire gate valve body, and the maintenance cost is low, thereby ensuring that the gate valve body has strong ultra-high-pressure erosion resistance. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 This is a schematic diagram of adjusting the sealing plate of the utility model;

[0019] Figure 3 This is a schematic diagram of the internal structure of the gate valve body of the utility model;

[0020] Figure 4 It is a schematic diagram of the clamping of the wear-resistant bushing of the utility model.

[0021] In the figure: 1. gate valve body; 101. embedded groove; 102. sealing groove; 103. gate body; 104. flange; 2. positioning card seat; 3. wear-resistant bushing; 4. gate groove; 5. sealing plate; 6. supporting positioning frame; 601. baffle; 602. movable plate; 603. screw rod; 604. rotating handle. DETAILED DESCRIPTION

[0022] In order to make the purpose, technical solution and advantages of the embodiments of the utility model clearer, the technical solution in the embodiments of the utility model is described clearly and completely. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] The embodiment of the present application provides an ultra-high pressure erosion resistant gate valve, thereby solving the problem that traditional gate valves usually do not have ultra-high pressure erosion resistance, have a short lifespan and are easily damaged during use, and the entire gate valve needs to be replaced during maintenance, resulting in high replacement and maintenance costs.

[0024] In order to better understand the above technical solution, the above technical solution will be described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0025] The utility model embodiment discloses an ultra-high pressure anti-scouring gate valve. Figure 1-4 As shown, it includes a gate valve body 1, and the bottom of the gate valve body 1 is provided with an embedded groove 101 and a sealing groove 102;

[0026] The inner part of the embedded groove 101 is movably connected with the positioning card seat 2, and the inner part of the positioning card seat 2 is movably connected with the wear-resistant bushing 3;

[0027] The sealing plate 5 is movably clamped inside the sealing groove 102 , and an adjusting mechanism for driving the position of the sealing plate 5 is provided on the gate valve body 1 .

[0028] Furthermore, the regulating mechanism includes a support and positioning frame 6 fixedly connected to the gate valve body 1, and a baffle 601 is fixedly connected to the support and positioning frame 6;

[0029] A screw rod 603 is threadedly connected to the baffle 601, and a movable plate 602 is rotatably connected to the screw rod 603. The movable plate 602 is slidably connected to the supporting positioning frame 6. The movable plate 602 is fixedly connected to the sealing plate 5. A rotating handle 604 is fixedly connected to the screw rod 603. When the sealing plate 5 is driven to move by the adjusting mechanism, the rotating handle 604 can be directly rotated. The rotating handle 604 drives the screw rod 603 to rotate, the screw rod 603 pushes the movable plate 602 to move, and the movable plate 602 drives the sealing plate 5 to move. Therefore, the adjusting mechanism has a compact structure and is easy to use.

[0030] Furthermore, a gate plate groove 4 is provided on the positioning card seat 2 and the wear-resistant bushing 3, and a gate plate body 103 is provided inside the gate valve body 1. The gate plate body 103 is movably inserted in the gate plate groove 4. The gate plate body 103 is conveniently matched with the positioning card seat 2 and the wear-resistant bushing 3 through the gate plate groove 4 to realize the internal flow control function of the gate valve body 1.

[0031] Flanges 104 are fixedly connected to both sides of the gate valve body 1. The flanges 104 are arranged to facilitate connection of the gate valve body 1 to a pipeline.

[0032] Specifically, the wear-resistant bushing 3 is made of polytetrafluoroethylene, which is stable at room temperature and pressure, and has excellent chemical stability, corrosion resistance, sealing, high lubricity and non-stickiness, electrical insulation and good anti-aging resistance. Therefore, the resistance is small when the fluid is transported inside the gate valve body 1, and it is suitable for use in ultra-high pressure fluid channels.

[0033] The ultra-high-pressure erosion-resistant gate valve has a positioning card seat 2 arranged inside the gate valve body 1 and a wear-resistant and easily replaceable wear-resistant bushing 3 arranged inside the positioning card seat 2. The surface of the wear-resistant bushing 3 is smooth and has low resistance, so that the inside of the gate valve body 1 has strong erosion resistance, high pressure resistance, and is not easy to be damaged. Even if the wear-resistant bushing 3 is damaged, the design of the sealing plate 5 and the adjustment mechanism makes it easy to replace the wear-resistant bushing 3 without replacing the entire gate valve body 1, and the maintenance cost is low, thereby ensuring that the gate valve body 1 has strong ultra-high-pressure erosion resistance.

[0034] When loading the wear-resistant bushing 3, firstly, the wear-resistant bushing 3 is clamped in the interior of the positioning clamping seat 2, and then the positioning clamping seat 2 is clamped in the interior of the embedded groove 101. At this time, the sealing plate 5 is driven to move by the adjustment mechanism, so that the sealing plate 5 is clamped in the sealing groove 102 to clamp and limit the positioning clamping seat 2 and the wear-resistant bushing 3.

[0035] When the sealing plate 5 is driven to move by the adjustment mechanism, the handle 604 can be directly rotated, and the handle 604 drives the screw rod 603 to rotate, the screw rod 603 drives the movable plate 602 to move, and the movable plate 602 drives the sealing plate 5 to move, so the adjustment mechanism has a compact structure and is easy to use.

[0036] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. An ultra-high pressure anti-scour gate valve, comprising a gate valve body (1), characterized in that: The bottom of the gate valve body (1) is provided with an embedded groove (101) and a sealing groove (102); The inner part of the embedded groove (101) is movably connected to a positioning card seat (2), and the inner part of the positioning card seat (2) is movably connected to a wear-resistant bushing (3); A sealing plate (5) is movably clamped inside the sealing groove (102), and an adjustment mechanism for driving the position of the sealing plate (5) is provided on the gate valve body (1).

2. The ultra-high pressure anti-scour gate valve according to claim 1, characterized in that: The regulating mechanism comprises a supporting and positioning frame (6) fixedly connected to the gate valve body (1), and a baffle (601) is fixedly connected to the supporting and positioning frame (6); The baffle plate (601) is threadedly connected to a screw rod (603), the screw rod (603) is rotatably connected to a movable plate (602), the movable plate (602) is slidably connected to a supporting and positioning frame (6), and the movable plate (602) is fixedly connected to a sealing plate (5).

3. The ultra-high pressure anti-scour gate valve according to claim 2, characterized in that: The screw rod (603) is fixedly connected with a rotating handle (604).

4. The ultra-high pressure anti-scour gate valve according to claim 1, characterized in that: The positioning clamping seat (2) and the wear-resistant bushing (3) are provided with a gate plate groove (4), and a gate plate body (103) is provided inside the gate valve body (1), and the gate plate body (103) is movably inserted in the gate plate groove (4).

5. The ultra-high pressure anti-scour gate valve according to claim 1, characterized in that: Flanges (104) are fixedly connected to both sides of the gate valve body (1).

6. The ultra-high pressure anti-scour gate valve according to claim 1, characterized in that: The wear-resistant bushing (3) is made of polytetrafluoroethylene.

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