Anti-static and channel spring force compensation structure for top-mounted ball valve

Abstract

The utility model discloses a top-mounted ball valve anti-static and channel spring force compensation structure which comprises a valve shell, a valve element is arranged in the valve shell, a valve rod is installed at the top end of the valve element through a bolt, a belleville spring is installed at the top end of the valve shell through a bolt, the valve rod penetrates through the belleville spring, a rotating handle is installed at the top end of the valve rod through a bolt, and a steel pipe is arranged outside the valve shell. The steel pipe is positioned above the belleville spring; through the belleville spring and the steel pipe, the electric conduction function and the ball pressing seat function can be achieved, meanwhile, spring force can be provided, multiple functions of parts are achieved, and the practicability of the top-mounted ball valve is greatly improved; the wedge type valve shell is adopted at the top of the valve shell, and the belleville spring and the steel pipe are additionally arranged between the valve rod and the valve element, so that a conductive path for metal-to-metal connection can be formed, and the anti-static requirement is met; and when the belleville spring and the steel pipe are additionally arranged between the valve rod and the valve element, when the valve element and the valve shell are pressed down, the anti-static requirement is met. Spring force compensation in the direction of one channel can be provided for sealing of the valve shells on the two sides, and the sealing effect is effectively improved.

Description

Technical Field

[0001] This utility model relates to the field of top-mounted ball valve technology, specifically to an anti-static and channel spring force compensation structure for a top-mounted ball valve. Background Technology

[0002] Top-entry ball valves are widely used in oil and gas pipelines, as well as in oil extraction, refining, petrochemical, chemical, chemical fiber, metallurgy, power, nuclear power, food, and papermaking plants. Top-entry ball valves offer simple and quick disassembly and repair on pipelines, facilitating convenient and rapid maintenance. When a valve malfunctions on the pipeline and requires repair, it is not necessary to remove the valve from the pipeline. Simply remove the flange bolts and nuts, detach the valve cover and stem assembly from the valve body, and then remove the valve core and body assembly; the valve core and body can then be repaired online. This method of maintenance saves time and minimizes production losses.

[0003] For example, a top-mounted fixed ball valve with application number CN201320735356.0 and authorization announcement date of 20140423 includes a valve body, a fluid passage and a valve stem passage inside the valve body, a valve cover covering the valve stem passage, a valve core inside the fluid passage, a valve body sealing seat on each side of the valve core, a valve shell between the valve body sealing seat and the valve core, a connecting flange welded to each side of the fluid passage, the connecting flange extending into the fluid passage on the side closest to the fluid passage to form a flange extension end, the flange extension end forming a limiting shoulder with the inner wall of the fluid passage, an adjusting cap between the valve body sealing seat and the limiting shoulder, the adjusting cap threadedly engaging with the inner wall of the fluid passage, a spring limiting groove on the side of the valve body sealing seat closest to the adjusting cap, a spring inside the spring limiting groove, the end of the spring away from the spring limiting groove abutting against the adjusting cap. This utility model of a top-mounted fixed ball valve adopts a movable compensable sealing structure for the valve shell and valve body sealing seat, improving the sealing performance between the valve core and the valve body, and extending its service life.

[0004] Previously, ball valves achieved electrical conductivity between the valve stem and valve core by drilling holes in the valve stem and inserting springs and steel balls to create a metal-to-metal connection, thus meeting the anti-static requirements. However, this method requires the additional installation of springs and steel balls, which increases the cost of the ball valve and affects the sealing performance between the valve core and the valve body. Therefore, it is urgent to design an anti-static and channel spring force compensation structure for top-mounted ball valves to solve the above problems. Utility Model Content

[0005] The purpose of this invention is to provide an anti-static and channel spring force compensation structure for an upper-mounted ball valve, so as to solve the above-mentioned shortcomings in the prior art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] An antistatic and channel spring force compensation structure for an upper-mounted ball valve includes a valve housing, a valve core inside the valve housing, and a valve stem bolted to the top of the valve core. A butterfly spring bolted to the top of the valve housing, the valve stem passing through the butterfly spring, and a rotating handle bolted to the top of the valve stem. A steel pipe is provided outside the valve housing, and the steel pipe is located above the butterfly spring.

[0008] Furthermore, both ends of the valve body are integrally formed with connecting flanges, and multiple through holes are opened on the outer wall of one side of the connecting flange.

[0009] In the above technical solution, the present invention provides an anti-static and channel spring force compensation structure for an upper-mounted ball valve, which has the following advantages:

[0010] This utility model uses a disc spring and a steel pipe to form a conductive ball seat and provide spring force, making the parts multi-functional and greatly improving the practicality of the top-mounted ball valve.

[0011] The valve body of this utility model adopts a wedge-shaped valve body at the top. A disc spring and a steel tube are installed between the valve stem and the valve core to form a conductive path for metal-to-metal connection to meet the anti-static requirements. In addition, the disc spring and steel tube installed between the valve stem and the valve core can provide spring force compensation in the sealing direction of the valve body on both sides when the valve core and valve body are pressed down, which can effectively improve the sealing effect. Attached Figure Description

[0012] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.

[0013] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the anti-static and channel spring force compensation structure for an upper-mounted ball valve according to the present invention.

[0014] Figure 2 This is a schematic diagram of the valve shell structure provided for an embodiment of the anti-static and channel spring force compensation structure of an upper-mounted ball valve according to the present invention.

[0015] Explanation of reference numerals in the attached figures:

[0016] 1. Connecting flange; 2. Valve body; 3. Butterfly spring; 4. Valve stem; 5. Rotary handle; 6. Steel pipe; 7. Valve core. Detailed Implementation

[0017] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0018] like Figure 1-2 As shown in the figure, the present invention provides an anti-static and channel spring force compensation structure for an upper ball valve, including a valve body 2, a valve core 7 inside the valve body 2, and a valve stem 4 bolted to the top of the valve core 7. A butterfly spring 3 is bolted to the top of the valve body 2, the valve stem 4 passes through the butterfly spring 3, and a rotating handle 5 is bolted to the top of the valve stem 4. A steel pipe 6 is provided outside the valve body 2, and the steel pipe 6 is located above the butterfly spring 3.

[0019] Specifically, in this embodiment, a valve body 2 is included, inside which a valve core 7 is provided, and a valve stem 4 is bolted to the top of the valve core 7. A butterfly spring 3 is bolted to the top of the valve body 2, through which the valve stem 4 passes. A rotating handle 5 is bolted to the top of the valve stem 4. A steel pipe 6 is provided on the outside of the valve body 2. The top of the valve body 2 adopts a wedge-shaped valve body. The butterfly spring 3 and the steel pipe 6 installed between the valve stem 4 and the valve core 7 can form a conductive path for metal-to-metal connection to meet the anti-static requirements. Furthermore, the butterfly spring 3 and the steel pipe 6 installed between the valve stem 4 and the valve core 7 can provide spring force compensation in the sealing direction of the two valve bodies 2 when the valve core 7 and the valve body 2 are pressed down, effectively improving the sealing effect between the valve core 7 and the valve body 2. This achieves multiple uses for the parts, and the steel pipe 6 is located above the butterfly spring 3.

[0020] This utility model provides an anti-static and channel spring force compensation structure for an upper-mounted ball valve. Through a disc spring 3 and a steel pipe 6, it can form a conductive and ball-pressing seat, while also providing spring force. This makes the parts multi-functional and greatly improves the practicality of the upper-mounted ball valve.

[0021] In one embodiment provided by this utility model, such as Figure 1-2 As shown, both ends of the valve body 2 are integrally formed with connecting flanges 1. The connecting flanges 1 facilitate the connection of the modified ball valve with external pipelines, and multiple through holes are opened on one side of the outer wall of the connecting flange 1. Example

[0022] An anti-static and channel spring force compensation structure for an upper-mounted ball valve includes a valve body 2, a valve core 7 inside the valve body 2, and a valve stem 4 bolted to the top of the valve core 7. A butterfly spring 3 is bolted to the top of the valve body 2, the valve stem 4 passes through the butterfly spring 3, and a rotating handle 5 is bolted to the top of the valve stem 4. A steel pipe 6 is provided outside the valve body 2. The top of the valve body 2 adopts a wedge-shaped valve body. The butterfly spring 3 and the steel pipe 6 installed between the valve stem 4 and the valve core 7 can form a conductive path for metal-to-metal connection to meet the anti-static requirements. Furthermore, the butterfly spring 3 and the steel pipe 6 installed between the valve stem 4 and the valve core 7 can provide spring force compensation in one channel direction for sealing the valve body 2 when the valve core 7 and the valve body 2 are pressed down, effectively improving the sealing effect between the valve core 7 and the valve body 2. This achieves multiple uses for the parts, and the steel pipe 6 is located above the butterfly spring 3. Example

[0023] This embodiment further defines the features of embodiment 1. Both ends of the valve body 2 are integrally formed with connecting flanges 1. The connecting flanges 1 facilitate the connection of the modified ball valve with external pipelines, and multiple through holes are provided on one side of the outer wall of the connecting flange 1.

[0024] Working principle: When operating this top-mounted ball valve, the valve stem 4 can be rotated by rotating the handle 5, causing the valve core 7 to rotate inside the valve body 2, thereby opening and closing the top-mounted ball valve. When operating the ball valve, the disc spring 3 and steel pipe 6 installed between the valve stem 4 and the valve core 7 can form a conductive path for metal-to-metal connection to meet the anti-static requirements. Furthermore, the disc spring 3 and steel pipe 6 installed between the valve stem 4 and the valve core 7 can provide spring force compensation in the sealing direction of the two valve bodies 2 when the valve core 7 and the valve body 2 are pressed down, effectively improving the sealing effect between the valve core 7 and the valve body 2, thus achieving multiple uses for the parts.

[0025] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A structure for anti-static and channel spring force compensation of an upper-mounted ball valve, comprising a valve body (2), characterized in that, The valve housing (2) is provided with a valve core (7) inside, and a valve stem (4) is installed on the top of the valve core (7) by bolts. A butterfly spring (3) is installed on the top of the valve housing (2) by bolts. The valve stem (4) passes through the butterfly spring (3). A rotating handle (5) is installed on the top of the valve stem (4) by bolts. A steel pipe (6) is provided on the outside of the valve housing (2), and the steel pipe (6) is located above the butterfly spring (3).

2. The anti-static and channel spring force compensation structure for an upper-mounted ball valve according to claim 1, characterized in that, Both ends of the valve body (2) are integrally formed with connecting flanges (1), and multiple through holes are opened on one side of the outer wall of the connecting flange (1).

Images