Slurry pipeline gate valve
By introducing a support ring and sealing ring structure into the mud pipeline gate valve and combining it with a mud discharge trough design, the problems of poor sealing and clogging of the gate under positive and negative pressures are solved, achieving stable fluid control and rapid opening and closing functions.
Patent Information
- Application Number
- CN202423080648.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-13
- Publication Date
- 2025-09-23
- Estimated Expiration
- 2034-12-13
AI Technical Summary
If the existing gate valve is installed incorrectly or under alternating positive and negative pressure conditions, the gate plate is prone to deformation, affecting the sealing effect, especially causing blockage in mud pipelines.
A mud pipeline gate valve was designed, which adopted a support ring and sealing ring structure and combined it with a mud discharge groove design to ensure the sealing of the gate under positive and negative pressures. The gate valve was opened and closed by a screw and a handle, and the gate and screw were quickly connected using a pin.
It improves the sealing and on-off performance of the gate valve in the mud pipeline, avoids silt accumulation and blockage, ensures that the gate reaches the position accurately, and realizes stable fluid control.
Smart Images
Figure CN223375134U_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the technical field of gate valves, in particular to a slurry pipeline gate valve. Background Art
[0002] The use of gate valves has expanded from general applications to a wider range of industries, from coal preparation, gangue and slag removal in mines and power plants to urban sewage treatment, and from general industrial pipelines to specialized piping systems such as food, health, and medicine. The gate moves perpendicular to the direction of the fluid, relying on a blade-shaped gate that can cut through fiber materials to cut the medium. The gate has two sealing surfaces. The most commonly used model of gate valve has two sealing surfaces that form a wedge. The wedge angle varies with the valve parameters, usually 5°. The gate of a wedge-type knife-type gate valve can be made into a single piece, called a rigid gate.
[0003] Gate valves typically have a seal on one side of the gate disc. When installing a gate valve, it's important to pay attention to the correct installation orientation. That is, when the gate valve is closed, the gate disc presses against the seal under the pressure of the material, further ensuring the seal. However, if installed incorrectly, the material can force the gate disc away from the seal. Over time, this can cause the gate disc to deform, and alternating positive and negative pressures can compromise its sealing effectiveness. Summary of the Invention
[0004] To address the aforementioned issues, the present invention discloses a slurry pipeline gate valve comprising a valve body with holes of varying diameters formed on both sides of the lower portion of the valve body. A gate plate is interspersed between the two holes. The gate plate, also known as the valve core, is opened and closed by changing the height of the gate plate.
[0005] The end of the smaller hole is attached with a first sealing ring, and the other side of the first sealing ring is attached to the gate plate. The first sealing ring is used to achieve sealing on one side of the gate plate.
[0006] The inner wall of the larger hole is threadedly connected to a retaining ring, and a support ring is sleeved on the inner side of one end of the retaining ring, and the support ring is attached to the other side of the gate. The support ring supports the other side of the gate.
[0007] The sidewall of the retaining ring is provided with a plurality of first-row mud grooves at equal angles, and the lower arc surface of the gate plate is provided with a plurality of second-row mud grooves. This gate valve is used for mud pipelines. To prevent mud and sand from accumulating and clogging at the gate plate, the first-row mud grooves and the second-row mud grooves are provided. When the gate valve is closed, the mud and sand can be accommodated in the area and the excess mud and sand can be squeezed out, ensuring that the gate plate reaches the correct position.
[0008] Preferably, a mounting plate is provided at the upper end of the valve body, the gate plate extends upwardly through the mounting plate, the upper end of the mounting plate is fixedly connected to a bracket, a screw is provided inside the bracket, the lower end of the screw is connected to the gate plate, and the upper end extends through the upper end of the bracket, and a handle is provided on the screw threadedly. When the handle is rotated, the screw engaged with it rises or falls, and the gate plate connected to the lower end of the screw is raised or lowered, thereby opening or closing the gate valve.
[0009] Preferably, a convex plate is provided at the middle of the upper end of the gate, an opening is provided at the lower end of the screw, and the convex plate fits in the opening, and a latch is provided through the convex plate and the opening. The latch connection facilitates quick connection of the gate and the screw.
[0010] Preferably, bolts and nuts are inserted at both ends of the mounting plate to achieve a fixed connection between the mounting plate and the valve body, and only two sets of bolts and nuts are provided, which facilitates quick disassembly.
[0011] Preferably, a second sealing ring is provided between the mounting plate and the valve body, and the gate plate passes through the second sealing ring. The second sealing ring improves the sealing performance between the gate plate and the mounting plate.
[0012] Preferably, edges are provided on both sides of the lower part of the valve body, and a plurality of through holes are provided on the edges at equal angles. The edges are fan-shaped and cooperate with the flange at the end of the mud pipe to achieve fixed connection with the gate valve.
[0013] Preferably, the upper side wall of the valve body is provided with a plurality of threaded holes, and the threaded holes and through holes are radially distributed around the same center. In order to ensure the stability of the valve body connection, threaded holes are provided, and bolts are used to pass through the flange on the mud pipe and threadedly connected to the threaded holes to achieve the fixing of the gate valve.
[0014] The beneficial effects of the present invention are as follows:
[0015] 1. A support ring, a first sealing ring and a retaining ring are respectively provided on both sides of the gate. The position of the retaining ring can be adjusted at the same time to ensure that the gate is located between the support ring and the first sealing ring to meet the sealing requirements. The gate is supported on both sides to ensure that the gate valve can ensure its sealing under positive and negative conditions.
[0016] 2. The first row of mud grooves and the second row of mud grooves are provided to ensure that the gate plate can smoothly reach the accurate position and realize the closing of the gate valve. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] Figure 1 It is a three-dimensional schematic diagram of the present invention;
[0018] Figure 2 It is an explosion diagram of the present invention;
[0019] Figure 3 It is a cross-sectional schematic diagram of the valve body of the present invention.
[0020] List of reference numerals:
[0021] 1. Valve body; 2. Edge; 3. Through hole; 4. Threaded hole; 5. Mounting plate; 6. Bolts and nuts; 7. Gate; 8. Bracket; 9. Screw; 10. Turn handle; 11. Retaining ring; 12. First row of mud grooves; 13. Support ring; 14. Latch; 15. Second row of mud grooves; 16. First sealing ring; 17. Second sealing ring. DETAILED DESCRIPTION
[0022] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. It should be understood that the following specific embodiments are intended only to illustrate the present invention and are not intended to limit the scope of the present invention. It should be noted that the terms "front," "rear," "left," "right," "up," and "down" used in the following description refer to directions in the accompanying drawings, and the terms "inward" and "outward" refer to directions toward or away from the geometric center of a particular component, respectively.
[0023] like Figures 1 to 3 As shown, a mud pipeline gate valve includes a valve body 1. The valve body 1 has an overall U-shaped profile. Holes are provided on both sides of the lower part of the valve body 1. The gate valve is installed on the mud pipe. The mud passes through the holes. The diameters of the holes are different. A gate plate 7 is interspersed between the two holes. The gate plate 7 blocks the holes to realize the on and off of the gate valve.
[0024] A first sealing ring 16 is attached to the end of the smaller hole, and the other side of the first sealing ring 16 is attached to the gate plate 7 , so that sealing on one side of the gate plate 7 is achieved through the first sealing ring 16 .
[0025] The inner wall of the larger hole is threadedly connected to a retaining ring 11, and a support ring 13 is sleeved on the inner side of one end of the retaining ring 11, and the support ring 13 is attached to the other side of the gate plate 7. The support ring 16 is used to support the other side of the gate plate 7. By rotating the retaining ring 11 to change its position, the distance between the support ring 13 and the first sealing ring 16 can be adjusted to ensure that the distance between the two meets the sealing requirements when the plug plate 7 is matched.
[0026] A first row of mud grooves 12 are provided at equal angles on the side wall of the retaining ring 11. When the gate plate 7 falls, mud and sand will accumulate in the groove between the support ring 13 and the first sealing ring 16, which will inevitably hinder the falling of the gate plate 7. At this time, a first row of mud grooves 12 are provided. When the gate plate 7 falls, the mud and sand can be squeezed out with the help of the first row of mud grooves 12. A second row of mud grooves 15 are provided on the arc surface of the lower end of the gate plate 7, and the second row of mud grooves 15 are used as reserved chambers to accommodate a part of the mud and sand.
[0027] A mounting plate 5 is provided at the upper end of the valve body 1, and the mounting plate 5 covers the upper end of the valve body 1. The gate plate 7 extends upward and passes through the mounting plate 5. The upper end of the mounting plate 5 is fixedly connected to a bracket 8. The bracket 8 is an inverted U-shaped structure. A screw 9 is provided inside the bracket 8. The lower end of the screw 9 is connected to the gate plate 7. Pulling the screw 9 upward or lowering the bolt 9 can realize the lifting and lowering of the gate plate 7, that is, the opening and closing of the gate valve. The upper end extends through the upper end of the bracket 8. A turning handle 10 is provided on the screw 9 for threaded cooperation. By rotating the turning handle 10, the screw 9 can be raised or lowered through thread cooperation.
[0028] A convex plate is provided in the middle of the upper end of the gate 7, and an opening is provided at the lower end of the screw 9, and the convex plate is fitted in the opening. A latch 14 is provided through the convex plate and the opening, and the gate 7 and the screw 9 are quickly connected through the latch 14. At the same time, an opening for installing or removing the latch 14 is reserved at the lower part of the bracket 8. In order to strengthen the structural strength of the bracket 8, reinforcing ribs are also provided on the inner side of the bracket.
[0029] Bolts and nuts 6 are inserted through both ends of the mounting plate 5 , and the mounting plate 5 and the valve body 1 are fixedly connected by the bolts and nuts 6 .
[0030] A second sealing ring 17 is provided between the mounting plate 5 and the valve body 1 , and the gate plate 7 passes through the second sealing ring 17 . The second sealing ring 17 improves the sealing between the mounting plate 5 and the valve body 1 .
[0031] Edges 2 are provided on both sides of the lower portion of the valve body 1 , and a plurality of through holes 3 are provided on the edges 2 at equal angles.
[0032] The upper sidewall of the valve body 1 is provided with a number of threaded holes 4, which are radially distributed around the same center as the through-holes 3. The through-holes 3, in conjunction with the threaded holes 4, are fixedly connected to the flange at the end of the mud pipe. Note that to increase the depth of the threaded holes 4 without compromising the structural strength of the valve body 1, a protruding column is provided on the outside of the valve body 1. Therefore, during installation, a sealing block must be placed between the flange and the valve body 1. The thickness of the block must not be less than the height of the protruding column, and the sealing block must be flexible.
[0033] The technical means disclosed in the solution of the present invention are not limited to the technical means disclosed in the above-mentioned embodiment, but also include technical solutions composed of any combination of the above technical features.
Claims
1. A slurry pipeline gate valve, characterized in that: It comprises a valve body (1), wherein holes are provided on both sides of the lower portion of the valve body (1), and the holes have different diameters, and a gate plate (7) is interspersed between the two holes; A first sealing ring (16) is attached to the end of the smaller hole, and the other side of the first sealing ring (16) is attached to the gate plate (7); The inner wall of the larger hole is threadedly connected to a retaining ring (11), an inner side of one end of the retaining ring (11) is sleeved with a supporting ring (13), and the supporting ring (13) is attached to the other side of the gate plate (7); A first row of mud grooves (12) are provided on the side wall of the retaining ring (11) at equal angles, and a second row of mud grooves (15) are provided on the arc surface at the lower end of the gate plate (7).
2. A slurry pipeline gate valve according to claim 1, characterized in that: The upper end of the valve body (1) is provided with a mounting plate (5), the gate plate (7) extends upward and penetrates the mounting plate (5), the upper end of the mounting plate (5) is fixedly connected to a bracket (8), the interior of the bracket (8) is provided with a screw rod (9), the lower end of the screw rod (9) is connected to the gate plate (7), and the upper end extends through the upper end of the bracket (8), and the screw rod (9) is provided with a handle (10) in threaded engagement.
3. A slurry pipeline gate valve according to claim 2, characterized in that: A convex plate is provided at the middle of the upper end of the gate plate (7), an opening is provided at the lower end of the screw rod (9), and the convex plate fits in the opening, and a latch (14) is provided through the convex plate and the opening.
4. A slurry pipeline gate valve according to claim 2, characterized in that: Bolts and nuts (6) are inserted through both ends of the mounting plate (5).
5. A slurry pipeline gate valve according to claim 2, characterized in that: A second sealing ring (17) is provided between the mounting plate (5) and the valve body (1), and the gate plate (7) passes through the second sealing ring (17).
6. The slurry pipeline gate valve according to claim 1, characterized in that: Edges (2) are provided on both sides of the lower portion of the valve body (1), and a plurality of through holes (3) are provided on the edges (2) at equal angles.
7. A slurry pipeline gate valve according to claim 6, characterized in that: The upper side wall of the valve body (1) is provided with a plurality of threaded holes (4), and the threaded holes (4) and the through holes (3) are radially distributed around the same center of a circle.