CN210510355U

CN210510355U - Lock sediment valve

Info

Publication number: CN210510355U
Application number: CN201921299013.8U
Authority: CN
Inventors: 孙进; 王舜; 杜海亭; 王永洲; 吴夏珩; 张波; 孔鲁源; 邱郝俊; 张阳
Original assignee: Chongqing Tetong Valve Co ltd
Current assignee: Chongqing Tetong Valve Co ltd
Priority date: 2019-08-12
Filing date: 2019-08-12
Publication date: 2020-05-12
Anticipated expiration: 2029-08-12

Abstract

The utility model provides a slag locking valve, which comprises a valve body, an actuating mechanism arranged on the valve body, two valve seats I, a ball body and a medium channel which are arranged in the valve body, wherein the ball body is driven by the actuating mechanism to rotate in the medium channel to realize the opening and closing of the slag locking valve; the outer wall of the sphere is provided with four convex rings which are connected with each other and used for matching with the first valve seat, the outer side faces of the four convex rings are positioned on the same spherical surface, and the spherical centers corresponding to the spherical surfaces where the outer side faces of the four convex rings are positioned are coincided with the spherical center of the sphere; and a second valve seat is arranged in the ball body and is perpendicular to the direction of the medium channel, and the second valve seat is abutted and contacted with the outer side surface of the convex ring in the opening and closing process of the slag locking valve. The utility model discloses not only can prevent the valve jitter in the switch process, can prevent moreover that the disk seat from appearing skew, prevent that the valve from sending out the card, make disk seat stability good, can also realize spheroid self-cleaning through the flexible portion that sets up between two disk seats and the bulge loop.

Description

Lock sediment valve

Technical Field

The utility model relates to a lock sediment valve.

Background

The slag locking valve has the characteristics of small fluid resistance, smooth flow, quick opening and closing and easy automatic control, is widely applied to pipelines in industries such as coal chemical industry, polycrystalline silicon, petroleum, chemistry, electric power, metallurgy, cement, sugar manufacturing, mine and the like, and is used for cutting off or connecting fluid media in the pipelines. CN107461510A discloses a scale-proof self-cleaning slag-locking valve in coal chemical industry, which comprises a valve body, wherein the valve body is provided with a channel which runs through from left to right, flanges are arranged at the left and right ends of the valve body outside the channel, a ball is arranged in the valve body, a through hole is arranged at the center of the left end surface of the ball, convex rings are arranged at the left and right end surfaces of the outer wall of the ball outside the through hole, the front and back side surfaces of the outer wall of the ball are also provided with convex rings, every two adjacent convex rings are connected with each other, the outer side surfaces of the four convex rings are positioned on the same spherical surface, the spherical center corresponding to the spherical surface where the outer side surfaces of the four convex rings are positioned coincides with the spherical center of the ball, the convex rings and the ball are integrally formed, the upper end surface of the ball is provided with a ball rod, the lower end surface of the ball is provided with a, the inner diameter of the inner ring is larger than that of the outer ring, the outer ring is positioned outside the inner ring, a valve seat sealing gasket with an inverted trapezoid cross section is arranged in the inner ring, a first retaining ring with an inverted L-shaped cross section is further arranged at one end, away from the ball, of the valve seat sealing gasket in the spring cavity, one end, close to the ball, of the first retaining ring is positioned in the inner ring, one end, away from the ball, of the first retaining ring is positioned in the outer ring, a second retaining ring with an inverted T-shaped cross section is arranged at one end, away from the ball, of the first retaining ring in the outer ring, first disc springs are arranged on the left end face and the right end face of the outer side of the second retaining ring in the spring cavity, a taper dustproof pad with a right trapezoid cross section is further arranged on the end face, away from the ball, of the bushing is provided with an annular bulge matched with the outer ring, the inner side, close to, the ball rod is arranged in the channel, the screw plug is arranged on the outer side of the bushing, the valve cover is arranged above the ball body and connected with the valve body through bolts, the support is arranged above the valve cover, the gland is arranged on the inner side of the support above the valve cover, and the ball rod penetrates through the valve cover, the support and the gland to be exposed. Although the slag locking valve has a good self-cleaning function, the ball body is a non-standard ball body (the ball crown part is partially cut off), so that when the ball body is half-opened by 45 degrees, the problem of valve shaking is easy to occur.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a lock sediment valve to solve when spheroid ajar 45, appear the technical problem of valve shake easily.

In order to achieve the above purpose, the present invention adopts the following technical solution.

A slag locking valve comprises a valve body, an actuating mechanism arranged on the valve body, two valve seats I arranged in the valve body, a ball body and a medium channel, wherein the actuating mechanism drives the ball body to rotate in the medium channel to realize opening and closing of the slag locking valve; the outer wall of the sphere is provided with four convex rings which are connected with each other and used for matching with the first valve seat, the outer side faces of the four convex rings are positioned on the same spherical surface, and the spherical centers corresponding to the spherical surfaces where the outer side faces of the four convex rings are positioned are coincided with the spherical center of the sphere; the method is characterized in that: and a second valve seat is arranged in the ball body and is perpendicular to the direction of the medium channel, and the second valve seat is abutted and contacted with the outer side surface of the convex ring in the opening and closing process of the slag locking valve.

Preferably, the second valve seat is a cylinder, the inner diameter of the cylinder is not greater than the outer diameter of the outer side surface of the convex ring, and the outer diameter of the cylinder is not less than the inner diameter of the outer side surface of the convex ring.

In order to better prevent the valve from shaking and improve the stability of the valve in the using process, two valve seats II are symmetrically arranged along the medium channel.

In order to further improve the self-cleaning performance of the valve, a flexible part is arranged between the second valve seat and the convex ring, and the flexible part is fixedly connected with the second valve seat and is abutted and contacted with the outer side face of the convex ring; preferably, the flexible part is made of polytetrafluoroethylene or rubber which meets the requirement of wear resistance.

In order to further improve the self-cleaning performance and the anti-seismic performance of the valve, the outer sides of the valve seats are provided with the mask plates, the mask plates are fixedly connected onto the valve body, the sealing elements and the springs are arranged between the mask plates and the second valve seats, one ends of the springs are abutted against the mask plates, and the other ends of the springs are abutted against the second valve seats.

Furthermore, a dustproof ring is arranged at the connecting part of the mask and the valve body, and the dustproof ring is positioned on the inner side of the sealing gasket.

To facilitate valve maintenance and service, the mask is removably attached to the valve body.

Preferably, the mask is a steel plate which meets the requirements of strength, hardness and corrosion resistance.

Preferably, the spring is a column spring.

Preferably, each valve seat is provided with two sets of springs and two sets of flexible portions symmetrically.

Has the advantages that: due to the adoption of the technical scheme, the utility model not only can prevent the valve from shaking in the opening and closing process, but also can prevent the valve seat from deviating and prevent the valve from being stuck, so that the stability of the valve seat is good, and the self-cleaning of the ball body can be realized through the flexible part arranged between the second valve seat and the convex ring; the second valve seat and the mask part arranged in the utility model can be used as observation holes, the valve can be directly disassembled on line without inserting the line when the valve is stopped, and the maintenance is convenient; the utility model discloses can prevent that the pretightning force is too big, prevent two injury spheroid sealing surfaces of disk seat, form the scratch.

Drawings

FIG. 1 is a schematic sectional view of a slag locking valve in an embodiment;

FIG. 2 is a view taken along line A-A of FIG. 1;

fig. 3 is an enlarged view of a portion B in fig. 2.

Detailed Description

The present invention will be further described with reference to the accompanying drawings and specific embodiments, but the following description of the embodiments is only for the purpose of helping understanding the principle and the core idea of the present invention, and is not intended to limit the scope of the present invention. It should be noted that modifications to the present invention may occur to those skilled in the art without departing from the principles of the present invention and are intended to fall within the scope of the appended claims.

Examples

A slag locking valve comprises a valve body 5, an actuating mechanism 6 (the actuating mechanism 6 can adopt a manual actuating mechanism or a pneumatic actuating mechanism), two valve seats 3, a ball 4 and a medium channel 2, wherein the actuating mechanism 6 is arranged on the valve body 5, and the ball 4 is driven to rotate in the medium channel 2 to realize the opening and closing of the slag locking valve; the outer wall of the sphere 4 is provided with four convex rings 1 which are connected with each other and used for matching with the first valve seat 3, the outer side surfaces of the four convex rings 1 are positioned on the same spherical surface, and the spherical centers corresponding to the spherical surfaces on which the outer side surfaces of the four convex rings 1 are positioned coincide with the spherical center of the sphere 4 (the structure of the sphere 4 refers to the figure 4 of the specification CN 107461510A); and a second valve seat 11 is arranged in the ball body 4 and is perpendicular to the direction of the medium channel 2, and the second valve seat 11 is abutted and contacted with the outer side surface of the convex ring 1 in the opening and closing process of the slag locking valve.

In this embodiment, the second valve seat 11 is a cylinder, and the inner diameter of the cylinder is not greater than the outer diameter of the outer side surface of the protruding ring 1, and the outer diameter of the cylinder is not less than the inner diameter of the outer side surface of the protruding ring 1. The structure is convenient for the end part of the cylinder (namely the connecting part of the second valve seat 11 and the outer side surface of the convex ring 1) to be matched with the outer side surface of the convex ring 1.

In the present embodiment, to better prevent the valve from shaking, two valve seats 11 are symmetrically arranged along the medium passage 2.

In this embodiment, in order to further improve the self-cleaning performance of the valve, the flexible portion 7 is arranged between the second valve seat 11 and the protruding ring 1, and the flexible portion 7 is fixedly connected to the second valve seat 11 and is abutted against and contacted with the outer side surface of the protruding ring 1 (in the abutting contact process, a certain interaction force is provided between the outer side surface of the protruding ring 1 and the flexible portion 7).

In this embodiment, in order to further improve the self-cleaning performance and the anti-seismic performance of the valve, a mask 8 is arranged outside the second valve seat 11, the mask 8 is fixedly connected to the valve body 5 through a bolt assembly 12, a sealing member 9 and a spring 10 are arranged between the mask 8 and the second valve seat 11, one end of the spring 10 abuts against the mask 8, and the other end of the spring 10 abuts against the second valve seat 11.

In the present embodiment, a dust seal 13 is further provided at the connection portion between the cover plate 8 and the valve body 5, and the dust seal 13 is located inside the seal 9.

In this embodiment, the mask 8 is detachably connected to the valve body 5, and the mask 8 and the second valve seat 11 can be taken out after the bolt assembly 12 is removed.

In this embodiment, the skin 8 may be a steel plate that meets the strength requirement, hardness requirement, and corrosion resistance requirement.

In the present embodiment, the spring 10 is a column spring, and two sets of springs 10 and two sets of flexible portions 7 are symmetrically arranged on each second valve seat 11.

The principle is as follows: compared with the existing slag locking valve (the existing slag locking valve only has two valve seats I3 in the figure 1), the slag locking valve of the utility model is additionally provided with two valve seats II 11, and the two valve seats II 11 are abutted and contacted with the outer side surface of the convex ring 1 in the opening and closing process of the slag locking valve; in the use process, the second valve seat 11 can play a role in positioning the ball 4 and balancing the center of the ball 4, and the joint of the valve seat and the ball 4 is stably attached all the time no matter the ball 4 is half-opened by 45 degrees or fully opened or closed, so that the valve can be prevented from shaking, the valve seat can be prevented from deviating, the valve can be prevented from being stuck, and the stability of the valve seat is good; because the flexible part 7 is arranged at one end of the second valve seat 11, and the spring 10 is arranged at the other end of the second valve seat 11, the ball 4 can realize an anti-seismic function under the combined action of the flexible part 7, the spring 10, the second valve seat 11 and the mask 8, the stroke of the flexible part 7 can be controlled, the over-large pretightening force is prevented, the sealing surface of the ball is prevented from being damaged by the second valve seat, the scratch is formed, and the self-cleaning of the ball 4 can be realized in the abutting contact process of the flexible part 7 and the convex ring; in addition, the second valve seat 11 and the mask 8 can be used as observation holes, the mask 8 can be directly detached on line without taking off the line when the valve is stopped, and maintenance is facilitated.

Claims

1. The slag locking valve comprises a valve body (5), an actuating mechanism (6) arranged on the valve body (5), two valve seats I (3), a ball body (4) and a medium channel (2) which are arranged in the valve body (5), wherein the actuating mechanism (6) drives the ball body (4) to rotate in the medium channel (2) to realize the opening and closing of the slag locking valve; the outer wall of the sphere (4) is provided with four convex rings (1) which are connected with each other and used for being matched with the valve seat I (3), the outer side surfaces of the four convex rings (1) are positioned on the same spherical surface, and the spherical center corresponding to the spherical surface where the outer side surfaces of the four convex rings (1) are positioned is coincided with the spherical center of the sphere (4); the method is characterized in that: a second valve seat (11) is arranged in the ball body (4) and perpendicular to the direction of the medium channel (2), and the second valve seat (11) is abutted and contacted with the outer side surface of the convex ring (1) in the opening and closing process of the slag locking valve.

2. The slag lock valve according to claim 1, wherein: the second valve seat (11) is a cylinder, the inner diameter of the cylinder is not larger than the outer diameter of the outer side surface of the convex ring (1), and the outer diameter of the cylinder is not smaller than the inner diameter of the outer side surface of the convex ring (1).

3. The slag lock valve according to claim 2, wherein: two valve seats II (11) are symmetrically arranged along the medium channel (2).

4. The slag lock valve according to any one of claims 1 to 3, wherein: a flexible part (7) is arranged between the second valve seat (11) and the convex ring (1), and the flexible part (7) is fixedly connected with the second valve seat (11) and is abutted and contacted with the outer side face of the convex ring (1).

5. The slag lock valve according to claim 4, wherein: the flexible part (7) adopts a polytetrafluoroethylene part or a rubber part with composite wear-resistant requirements.

6. The slag lock valve according to claim 5, wherein: a mask (8) is arranged on the outer side of the second valve seat (11), the mask (8) is fixedly connected to the valve body (5), a sealing element (9) and a spring (10) are arranged between the mask (8) and the second valve seat (11), and one end of the spring (10) abuts against the mask (8) and the other end of the spring (10) abuts against the second valve seat (11).

7. The slag lock valve according to claim 6, wherein: a dustproof ring (13) is also arranged at the connecting part of the mask (8) and the valve body (5), and the dustproof ring (13) is positioned at the inner side of the sealing element (9).

8. The slag lock valve according to claim 7, wherein: the mask (8) is detachably connected to the valve body (5).

9. The slag lock valve according to claim 8, wherein: the mask (8) is made of a steel plate which meets the requirements of strength, hardness and corrosion resistance.

10. The slag lock valve according to claim 9, wherein: the spring (10) adopts a column spring, and two sets of springs (10) and two sets of flexible parts (7) are symmetrically arranged on each second valve seat (11).