CN214889011U

CN214889011U - Novel metal hard seal floating ball valve structure

Info

Publication number: CN214889011U
Application number: CN202120793299.6U
Authority: CN
Inventors: 韩泽海; 周康
Original assignee: Cnv Valve & Control Co inc
Current assignee: Cnv Valve & Control Co inc
Priority date: 2021-04-19
Filing date: 2021-04-19
Publication date: 2021-11-26
Anticipated expiration: 2031-04-19

Abstract

The utility model relates to a novel metal hard seal ball valve structure that floats, including a connector, a disk seat, a winding pad and a spheroid, the winding pad is equipped with W shape structure, and the inner wall of connector is equipped with a first ladder and a second ladder from bottom to top in proper order, and the horizontal distance of second ladder and disk seat is A, presses between connector and the disk seat to be equipped with the winding pad, spheroid and disk seat butt. This neotype metal ball valve structure that floats sealed firmly has the reduction moment of torsion, reduces the hard joint damage, improves life, advantages such as easy to maintain.

Description

Novel metal hard seal floating ball valve structure

Technical Field

The utility model relates to a metal seals ball valve technical field that floats firmly, especially a novel metal seals ball valve structure that floats firmly.

Background

The metal hard sealing valve is mainly suitable for the industries of petroleum, chemical industry, metallurgy, water and electricity and the like. The opening torque of the valve is large, so that the selection of an actuating mechanism is easy to increase, and the cost is increased. The ball body of the floating ball valve is floating, and under the action of medium pressure, the ball body can generate certain displacement and is tightly pressed on a sealing surface of the outlet end, so that the outlet end is sealed.

At present, the downstream of the metal hard seal floating ball valve produced by our company is the valve seat which is in direct contact with the connecting body, the downstream valve seat is in contact with the connecting body during the opening operation of the valve, the rigid contact easily causes the increase of torque, and once the valve is worn or damaged, the maintenance cost is greatly increased.

Therefore, a novel metal hard seal floating ball valve structure is developed to solve the defects.

SUMMERY OF THE UTILITY MODEL

The utility model discloses the purpose provides a novel metal hard seal ball valve structure that floats for overcoming prior art not enough, has the reduction moment of torsion, reduces the hard connection damage, improves life, advantages such as easy to maintain.

In order to achieve the above purpose, the utility model adopts the technical scheme that: the utility model provides a novel metal is sealed ball valve structure that floats firmly, includes a connector, a disk seat, a winding pad and a spheroid, the winding pad is equipped with W shape structure, the inner wall of connector is equipped with a first ladder and a second ladder from bottom to top in proper order, the second ladder with the horizontal distance of disk seat is A, the connector with press between the disk seat to be equipped with the winding pad, the spheroid with the disk seat butt.

Preferably, in order to reduce mechanical damage of the hard seal, the valve seat is provided with an L-shaped angle, and the winding pad is pressed between the first step and the L-shaped angle and the second step.

Preferably, the horizontal distance A is in the range of 0 < A.ltoreq.0.3 mm in order to reduce the contact stress.

Preferably, in order to facilitate installation of the winding pad and disassembly and maintenance of the valve, the first step is provided with a chamfer which is arranged close to the inner diameter of the winding pad.

Preferably, in order to facilitate flow control, the connecting body is provided with a water inlet end and a water outlet end, and the inner diameter of the water inlet end is larger than that of the water outlet end.

Preferably, in order to reduce stress, the water inlet end is provided with an annular groove.

Preferably, in order to facilitate the flow control adjustment of the valve, a circular first channel is horizontally arranged at the center of the ball, a circular second channel is horizontally arranged at the center of the valve seat, and the inner diameter of the first channel is the same as that of the second channel.

Preferably, in order to facilitate the sealing of the ball, the valve seat is provided with an arc surface, the ball is provided with a spherical surface, and the arc surface is abutted against the spherical surface.

Because of above-mentioned technical scheme's application, compared with the prior art, the utility model have the following advantage:

according to the novel metal hard seal floating ball valve structure, the winding pad is additionally arranged between the floating ball valve connector and the valve seat, and when the valve operates, the valve seat is in contact with the winding pad and the winding pad is in contact with the connector, so that the effect of sealing the valve is achieved; the structure is reasonable in design, and the torque of the valve is obviously reduced; the hard connection damage between the valve seat and the connector is reduced, and the service life of the valve is prolonged; is convenient to disassemble and maintain.

Drawings

Figure 1 is the structure schematic diagram of the novel metal hard seal floating ball valve structure of the utility model.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.

In fig. 1, a novel metal hard seal floating ball valve structure comprises a connecting body 10, a valve seat 30, a winding pad 20 and a ball 50.

The winding pad 20 is provided with a W-shaped structure 21, the inner wall of the connecting body 10 is sequentially provided with a first step 11 and a second step 12 from bottom to top, the first step 11 is provided with a chamfer 16, and the chamfer 16 is arranged close to the inner diameter of the winding pad 20. The horizontal distance a between the second step 12 and the valve seat 30 is in the range of 0 < a ≦ 0.3mm, preferably 0.3 mm.

The packing 20 is pressed between the connecting body 10 and the valve seat 30, and the ball 50 abuts against the valve seat 30. The connector 10 has a water inlet end 14 and a water outlet end 13, and the water inlet end 14 has an annular groove 15. The inner diameter of the water inlet end 14 is larger than the inner diameter of the water outlet end 13.

The valve seat 30 is provided with an L-shaped angle 32. The winding pad 20 is pressed between the first step 11, the second step 12 and the L-shaped angle 32. The valve seat 30 has a curved surface 32, the ball 50 has a spherical surface 52, and the curved surface 32 abuts against the spherical surface 52.

A circular first channel 51 is horizontally arranged at the center of the ball 50, and a circular second channel 31 is horizontally arranged at the center of the valve seat 30. The first passage 51 has the same inner diameter as the second passage 31.

A winding pad 20 is provided between the valve seat 30 and the connecting body 10, and the valve seat 30 is pressed into contact with the winding pad 20 when the valve is operated. When the metal hard seal floating ball valve is designed, the winding pad 20 is arranged between the L-shaped angle 32 and the first step 11 and the second step 12. Practice proves that the structure is reasonable in design, the torque of the valve is obviously reduced, the hard connection damage between the valve seat 30 and the connecting body 10 is reduced while the sealing effect is achieved, the service life of the valve is prolonged, and the valve is convenient to disassemble and maintain.

The above is only a specific application example of the present invention, and does not constitute any limitation to the protection scope of the present invention. All the technical solutions formed by equivalent transformation or equivalent replacement fall within the protection scope of the present invention.

Claims

1. The utility model provides a novel metal ball valve structure that floats sealed firmly which characterized in that: including a connector, a disk seat, a winding pad and a spheroid, the winding pad is equipped with W shape structure, the inner wall of connector is equipped with a first ladder and a second ladder from bottom to top in proper order, the second ladder with the horizontal distance of disk seat is A, the connector with press between the disk seat and be equipped with the winding pad, the spheroid with the disk seat butt.

2. The novel metal hard seal floating ball valve structure according to claim 1, wherein the valve seat is provided with an L-shaped angle, and the winding pad is crimped between the first step, the second step and the L-shaped angle.

3. The novel metal hard seal floating ball valve structure according to claim 1, wherein the horizontal distance A is in the range of 0 < A ≦ 0.3 mm.

4. The novel metal-to-metal seal floating ball valve structure of claim 1, wherein said first step is provided with a chamfer disposed proximate to an inner diameter of said convoluted gasket.

5. The novel metal-to-metal floating ball valve structure of claim 1, wherein said connecting body has a water inlet end and a water outlet end, and the inner diameter of said water inlet end is larger than the inner diameter of said water outlet end.

6. The novel metal-to-metal floating ball valve structure as claimed in claim 5, wherein the water inlet end is provided with an annular groove.

7. The novel metal hard seal floating ball valve structure according to claim 1, wherein a circular first channel is horizontally arranged at the center of the ball body, a circular second channel is horizontally arranged at the center of the valve seat, and the inner diameter of the first channel is the same as that of the second channel.

8. The novel metal-to-metal floating ball valve structure as claimed in claim 1, wherein the valve seat has an arc surface, and the ball has a spherical surface, and the arc surface abuts against the spherical surface.