Fixed ball valve with top-mounted energy storage sealing ring

Abstract

The utility model discloses a top-mounted fixed ball valve with an energy storage sealing ring, and belongs to the technical field of ball valves. The ball valve comprises a valve body, a ball body is arranged in the valve body, a valve seat is arranged between the ball body and the valve body, a spring seat ring is arranged in the valve seat, an elastic component is arranged in the spring seat ring so that the valve seat can be attached to the ball body, and the end, facing the ball body, of the valve seat is machined to be conical. The valve cover is arranged at the upper end of the valve body; the valve rod penetrates through the valve cover and is connected with the top of the ball body, and the bottom of the ball body is rotationally connected with the valve cover; the valve seat is designed to be conical towards the end of the ball body and is matched with a dismounting tool to separate and attach the ball body and the valve seat during later dismounting, online dismounting of the valve is facilitated, and online maintenance difficulty is reduced.

Description

Technical Field

[0001] This utility model relates to a fixed ball valve with an energy storage sealing ring mounted on top, belonging to the field of ball valve technology. Background Technology

[0002] With the continuous development of industry, the demand for valves is increasing. Ball valves, using a ball as the opening and closing element, have gained customer trust due to their advantages such as low flow resistance, low pressure loss, reliable sealing, and ease of operation. Existing fixed ball valves are generally two- or three-piece split side-mounted types. Due to their structural limitations, they have more external leakage points. When maintaining them on pipelines, it is necessary to disconnect the valve from the pipeline before inspecting the internal parts. In contrast, top-mounted fixed ball valves have fewer leakage points, are simple and quick to install and remove on pipelines, and are convenient and fast to maintain, minimizing losses in production. Utility Model Content

[0003] The purpose of this invention is to overcome the shortcomings of the existing technology and provide a fixed ball valve with an energy storage sealing ring, which facilitates online disassembly and assembly of the valve and reduces the difficulty of online maintenance.

[0004] To achieve the above objectives / to solve the above technical problems, this utility model adopts the following technical solution:

[0005] A fixed ball valve with an energy storage sealing ring, comprising:

[0006] The valve body contains a ball, and a valve seat is provided between the ball and the valve body. A spring seat ring is provided inside the valve seat, and an elastic component is provided inside the spring seat ring to make the valve seat fit against the ball. The end of the valve seat facing the ball is machined into a conical shape.

[0007] Valve cover, the valve cover being disposed at the upper end of the valve body;

[0008] A valve stem, which passes through the valve cover and connects to the top of the ball, and the bottom of the ball is rotatably connected to the valve cover.

[0009] Optionally, an O-ring is provided between the end of the valve seat away from the ball and the valve body.

[0010] Optionally, a fireproof packing is provided between the valve seat and the valve body on the side away from the O-ring.

[0011] Optionally, the valve cover is provided with a gland flange.

[0012] Optionally, the gland flange is bolted to the valve cover.

[0013] Optionally, the valve cover is fixedly connected to the valve body by studs and nuts.

[0014] Optionally, the ball is a long-handled ball, and the upper and lower long handles of the ball cooperate with the valve cover and the valve body.

[0015] Optionally, the spring seat has a groove to facilitate pulling the spring seat.

[0016] Compared with the prior art, the beneficial effects achieved by this utility model are as follows:

[0017] This utility model features an integral gland flange, reducing the shaking and misalignment that occur in conventional split designs.

[0018] This utility model features a valve seat with a tapered design facing the ball end. During later disassembly and assembly, it can be used with disassembly and assembly tools to separate and fit the ball and valve seat, facilitating online valve disassembly and assembly and reducing the difficulty of online maintenance. The valve body is a two-piece bolted valve body, which has fewer leakage points than the conventional three-piece bolted valve body, and the number of parts is reduced, making assembly simple and improving sealing performance.

[0019] The long-handled ball reduces the number of parts used, lowers costs, and correspondingly reduces the machining tolerances between parts, thus improving sealing performance caused by the machining tolerances of parts.

[0020] The valve's main seals all use energy storage sealing rings, which are more resistant to aging and have better sealing performance than O-rings, thus increasing the valve's service life.

[0021] The simplified external structure requires only one side to use fasteners (studs and nuts), which reduces the number of parts needed for assembly and improves the efficiency of finished product production.

[0022] The groove design of the spring seat ring makes it easy for factories to disassemble and assemble valves using special tooling. Factories do not need to disassemble and assemble valves through the disassembly and assembly holes, which effectively increases the frequency of use and lifespan of the disassembly and assembly holes on the valve body. Attached Figure Description

[0023] Figure 1 The diagram shown is a structural schematic of the metal-sealed top-mounted ball valve of this utility model.

[0024] In the diagram: 1. Valve body; 2. Valve cover; 3. Valve stem; 4. Ball; 5. Valve seat; 6. Spring seat; 7. Spring seat; 8. Fireproof packing; 9. Stud; 10. Nut; 11. Bolt; 12. Pressure flange. Detailed Implementation

[0025] The present invention will be further described below with reference to the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present invention, and should not be used to limit the scope of protection of the present invention.

[0026] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0027] like Figure 1 The disclosed figure shows a fixed ball valve with an energy storage sealing ring mounted on top, comprising:

[0028] The valve body 1 contains a ball 4, and a valve seat 5 is provided between the ball 4 and the valve body 1. A spring seat 6 is provided inside the valve seat 5, and an elastic component is provided inside the spring seat 6 to make the valve seat 5 fit with the ball 4. Sufficient displacement should be left between the valve seat 5 and the valve body 1 during the design. One end of the valve seat 5 fits against the ball 3, and the other end abuts against the spring seat 6.

[0029] Valve cover 2, which is located on the upper end of valve body 1 and is fixedly connected to valve body 1 by stud 9 and nut 10;

[0030] The valve stem 3 passes through the valve cover 2 and is connected to the top of the ball 4. The bottom of the ball 4 is rotatably connected to the valve cover 2.

[0031] In this embodiment, an O-ring 7 is provided between the end of the valve seat 5 away from the ball 4 and the valve body 1, and a fireproof packing 8 is provided between the side of the valve seat 5 away from the O-ring 7 and the valve body 1 to improve the sealing performance between the two.

[0032] refer to Figure 1 The present invention also includes a gland flange 12 and bolts 11. The gland flange 12 is located on the valve cover 2 and is fixedly connected to the valve cover 2 by bolts 11.

[0033] In this embodiment, the ball 4 is a long-handled ball, and the upper and lower long handles of the ball 4 cooperate with the valve cover 2 and the valve body 1. The long-handled ball reduces the number of parts used, lowers the cost, and correspondingly reduces the machining tolerance between various parts, thereby improving the sealing performance caused by the machining tolerance of the parts.

[0034] In this embodiment, the spring seat ring 6 is provided with a groove to facilitate pulling the spring seat ring 6. The groove design of the spring seat ring makes it convenient for the factory to use special tooling to disassemble and assemble the valve. The factory does not need to disassemble and assemble the valve through the disassembly and assembly hole, which effectively improves the frequency of use and life of the disassembly and assembly hole on the valve body.

[0035] In this embodiment, the valve seat 5 is machined into a tapered shape at the end facing the ball 4. The tapered design of the valve seat at the end facing the ball allows for separation and fitting of the ball and valve seat during disassembly and assembly, facilitating online disassembly and assembly of the valve and reducing the difficulty of online maintenance.

[0036] In this embodiment, during the specific implementation process, the valve stem 3 passes through the gland flange 12 and is connected to the ball 4 via a spring to the valve body 1. The valve stem 3 is provided with a packing gasket ring. The gland flange 12 is provided with a pressure ring, and the pressure ring is connected to the gland flange 12 via screws.

[0037] The valve body is a two-piece bolted valve body, which has fewer leakage points than the conventional three-piece bolted valve body, and the number of parts is reduced, making assembly simpler and improving sealing performance.

[0038] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0039] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A fixed ball valve with an energy storage sealing ring mounted on top, characterized in that it comprises: A valve body (1) is provided inside the valve body (1), and a valve seat (5) is provided between the ball (4) and the valve body (1). A spring seat (6) is provided inside the valve seat (5), and an elastic component is provided inside the spring seat (6) to make the valve seat (5) fit with the ball (4). The end of the valve seat (5) facing the ball (4) is processed into a cone shape. Valve cover (2), the valve cover (2) is located at the upper end of the valve body (1); The valve stem (3) passes through the valve cover (2) and is connected to the top of the ball (4). The bottom of the ball (4) is rotatably connected to the valve cover (2).

2. The energy storage sealing ring-mounted fixed ball valve according to claim 1, characterized in that, An O-ring (7) is provided between the end of the valve seat (5) away from the ball (4) and the valve body (1).

3. The energy storage sealing ring-mounted fixed ball valve according to claim 1, characterized in that, Fireproof packing (8) is provided between the valve seat (5) away from the O-ring (7) and the valve body (1).

4. The energy storage sealing ring-mounted fixed ball valve according to claim 1, characterized in that, The valve cover (2) is provided with a pressure flange (12).

5. The energy storage sealing ring-mounted fixed ball valve according to claim 4, characterized in that, The gland flange (12) is connected to the valve cover (2) by bolts (11).

6. The energy storage sealing ring-mounted fixed ball valve according to claim 1, characterized in that, The valve cover (2) is fixedly connected to the valve body (1) by studs (9) and nuts (10).

7. The energy storage sealing ring-mounted fixed ball valve according to claim 1, characterized in that, The ball (4) is a long-handled ball, and the upper and lower long handles of the ball (4) are matched with the valve cover (2) and the valve body (1).

8. The energy storage sealing ring-mounted fixed ball valve according to claim 1, characterized in that, The spring seat (6) is provided with a groove to facilitate pulling the spring seat (6).

Images