CN219159599U

CN219159599U - Fixed ball valve of online maintenance top mounted integral type

Info

Publication number: CN219159599U
Application number: CN202321006235.2U
Authority: CN
Inventors: 姚伟; 黄健
Original assignee: Sichuan Saier Valve Mfg Co ltd
Current assignee: Sichuan Saier Valve Mfg Co ltd
Priority date: 2023-04-28
Filing date: 2023-04-28
Publication date: 2023-06-09
Anticipated expiration: 2033-04-28

Abstract

The utility model discloses an on-line maintenance top-mounted integrated fixed ball valve, which belongs to the technical field of valves and solves the problem that the top-mounted integrated fixed ball valve is difficult to process when a valve seat moving structure is processed in a valve body. The utility model is used for forming a sphere assembly space through the adjusting ring, is convenient for loading or unloading spheres and realizes the on-line maintenance of the valve.

Description

Fixed ball valve of online maintenance top mounted integral type

Technical Field

The utility model belongs to the technical field of valves, and particularly relates to an on-line maintenance and top-loading integrated fixed ball valve.

Background

The top-mounted ball valve is a valve for controlling flow, and most of the existing top-mounted ball valves are of automatic pressure relief and integrated valve seat structures and generally comprise a valve body, a valve cover, a ball body, a valve seat and a valve rod driving device. In the assembled and qualified top-mounted ball valve, the pretightening force generated by the spiral compression spring ensures the tightness fit sealing state of the ball body and the valve seat, and the valve seat is installed in pairs relative to the left side and the right side of the ball body. The valve rod transmits the torque generated by the valve rod driving device to the ball body, so that the ball body rotates by 0-90 degrees, and the purpose of opening or closing the ball valve is realized.

At present, in the prior art, there is a top-mounted ball valve capable of replacing components such as a ball body and a valve rod on line, but the top-mounted ball valve is usually a mechanism such as a structure (e.g. a screw thread) for valve seat movement processed in a valve body, and a space for valve seat movement is reserved, so that the valve seat and the ball body can be separated and then the ball body is taken out for operation during maintenance and replacement, however, the processing in the valve body is very difficult, the processing difficulty is high, the time consumption is high, the processing effect cannot be guaranteed, and the normal operation function of the valve is affected.

Disclosure of Invention

The utility model aims at:

in order to solve the problem that the processing of the top-mounted integrated fixed ball valve in the prior art is difficult when the valve seat movable structure is processed in the valve body, the on-line maintenance top-mounted integrated fixed ball valve is provided.

The technical scheme adopted by the utility model is as follows:

the utility model provides an online maintenance top-loading integral type fixed ball valve, includes the valve body, install the disk seat in the valve body, install the spheroid in the disk seat, the spheroid is connected with the disk seat, the disk seat is inlayed in the disk seat supporting ring, the cover is equipped with the regulation circle on the disk seat supporting ring, be provided with the internal thread on the regulation circle, be provided with on the disk seat supporting ring with regulation circle complex external screw thread, install the stop pin in the valve body, set up on the disk seat supporting ring with stop pin complex spacing groove, still set up the movable groove that is used for the disk seat supporting ring to remove on the valve body.

Further, a support ring sealing ring is arranged between the valve seat support ring and the valve body, a valve rod is arranged on the ball body, and the valve rod comprises an upper valve rod at the upper end of the ball body and a lower valve rod at the lower end of the ball body.

Further, a valve cover is arranged on the valve body, the upper end of the upper valve rod extends out of the valve cover, the top end of the upper valve rod is connected with a worm gear operator, and a gland is connected between the valve cover and the upper valve rod.

Further, a valve rod sealing ring is arranged between the gland and the upper valve rod, a gland sealing ring is arranged between the gland and the valve cover, and a valve cover sealing ring is arranged between the valve cover and the valve body.

In summary, due to the adoption of the technical scheme, the beneficial effects of the utility model are as follows:

according to the utility model, the valve seat support ring and the adjusting ring are connected through threads, one end of the stop pin is fixed in the valve body during assembly, and the other end of the stop pin is inserted into the corresponding limit groove of the valve seat support ring. Under the limit of the stop pin and the limit groove in the valve seat support ring, the valve seat support ring can only linearly approach or separate from the ball body when the adjusting ring is rotated. When approaching the ball, an initial pretension of the valve can be established. When the ball is far away from, a ball assembly space can be formed, so that the ball can be conveniently put in or taken out, and the valve can be maintained on line. Simultaneously, processing screw thread cooperation in disk seat holding ring and adjusting ring is compared in processing screw thread in the valve body, and is easier, more convenient, swift.

Drawings

FIG. 1 is a cross-sectional view of a ball valve of the present utility model;

FIG. 2 is a semi-sectional view of a top view of the ball valve of the present utility model;

FIG. 3 is a partial view of the joint of the adjusting ring and the valve seat support ring of the present utility model.

The marks in the figure: the valve comprises a valve body, a lower valve rod, a 3-ball body, a 4-valve seat, a 5-adjusting ring, a 6-stop pin, a 7-valve seat supporting ring, an 8-supporting ring sealing ring, a 9-upper valve rod, a 10-gland, an 11-gland sealing ring, a 12-valve rod sealing ring, a 13-valve cover sealing ring, a 14-valve cover and a 15-worm gear operator.

Description of the embodiments

The present utility model will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present utility model more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.

The utility model provides an online maintenance top mounted integral type fixed ball valve, as shown in fig. 1, fig. 2, including valve body 1, install disk seat 4 in the valve body 1, install spheroid 3 in the disk seat 4, spheroid 3 is connected with disk seat 4, disk seat 4 is inlayed in disk seat holding ring 7, the cover is equipped with adjusting ring 5 on the disk seat holding ring 7, be provided with the internal thread on the adjusting ring 5, be provided with on the disk seat holding ring 7 with adjusting ring 5 complex external screw thread, install stop pin 6 in the valve body 1, set up on the disk seat holding ring 7 with stop pin 6 complex spacing groove, still set up the movable groove that is used for disk seat holding ring 7 to remove on the valve body 1.

The adjusting ring 5 is connected with the valve seat supporting ring 7 through threads, and under the cooperation of the stop pin 6, the valve seat supporting ring 7 can be linearly close to or far away from the ball body 3 by rotating the adjusting ring 5, so that the valve initial pre-tightening or ball body 3 assembling space is formed. The stopper pin 6 prevents the valve seat support ring 7 from rotating, and makes it advance straight or retreat.

Preferably, a support ring sealing ring 8 is arranged between the valve seat support ring 7 and the valve body 1, a valve rod is arranged in the ball body 3, and the valve rod comprises an upper valve rod 9 at the upper end of the ball body 3 and a lower valve rod 2 at the lower end.

The lower valve rod 2 fixes and supports the ball 3. The upper valve rod 9 is inserted into the sphere 3 and is connected with the worm gear operator 15, and the valve is closed or opened along with the clockwise or anticlockwise rotation of the worm gear operator 15.

Preferably, a valve cover 14 is arranged on the valve body 1, the upper end of the upper valve rod 9 extends out of the valve cover 14, the top end of the upper valve rod 9 is connected with a worm gear operator 15, and a gland 10 is connected between the valve cover 14 and the upper valve rod 9. The gland 10 forms a sealing cavity with the valve body 1, the valve cover 14, the upper valve rod 9 and sealing elements of each part.

Preferably, a valve rod sealing ring 12 is arranged between the gland 10 and the upper valve rod 9, a gland sealing ring 11 is arranged between the gland 10 and the valve cover 14, and a valve cover sealing ring 13 is arranged between the valve cover 14 and the valve body 1.

As a preferred embodiment, all sealing rings in the utility model are O-shaped sealing rings.

The working principle of the top-mounted integrated fixed ball valve of the utility model is as follows:

the valve body 1 is a valve body and is connected with a pipeline, and forms an opening and closing channel with the valve seat support ring 7, the valve seat 4, the ball body 3, the valve cover 14, the upper valve rod 9, the gland 10 and sealing elements of all parts, so that medium can be cut off or flow can be conducted. The ball body 3 forms an opening and closing channel with the valve body 1, the valve seat 4, the valve seat supporting ring 7 and the valve seat supporting ring 7, and the worm gear operator 15 and the valve rod drive the ball body 3 to rotate 90 degrees clockwise or anticlockwise, so that the valve can be closed or opened. As shown in fig. 3, the valve seat support ring 7 is connected with the adjusting ring 5 through threads, and when the valve is assembled, one end of the stop pin 6 is fixed in the valve body 1, and the other end is inserted into a corresponding limit groove of the valve seat support ring 7. The seat support ring 7 can only be linearly moved closer to or further from the ball 3 when the adjustment ring 5 is rotated under the restriction of the stopper pin 6 and the stopper groove in the seat support ring 7. Near the ball 3, an initial pretension of the valve can be established. When keeping away from spheroid 3, can form spheroid 3 assembly space, make things convenient for spheroid 3 to pack into or take out, realize the online maintenance of valve.

The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the utility model.

Claims

1. The utility model provides a fixed ball valve of online maintenance top mounted integral type, its characterized in that, including valve body (1), install disk seat (4) in valve body (1), install spheroid (3) between disk seat (4), spheroid (3) are connected with disk seat (4), disk seat (4) are inlayed in disk seat holding ring (7), the cover is equipped with adjusting ring (5) on disk seat holding ring (7), be provided with the internal thread on adjusting ring (5), be provided with on disk seat holding ring (7) with adjusting ring (5) complex external screw thread, install retaining pin (6) in valve body (1), offer on disk seat holding ring (7) with retaining pin (6) complex spacing groove, still offered the movable groove that is used for disk seat holding ring (7) to remove on valve body (1).

2. The on-line maintenance top-loading integrated fixed ball valve according to claim 1, wherein a support ring sealing ring (8) is arranged between the valve seat support ring (7) and the valve body (1), a valve rod is arranged on the ball body (3), and the valve rod comprises an upper valve rod (9) at the upper end of the ball body (3) and a lower valve rod (2) at the lower end of the ball body.

3. The on-line maintenance top-loading integrated fixed ball valve according to claim 2, wherein a valve cover (14) is installed on the valve body (1), the upper end of the upper valve rod (9) extends out of the valve cover (14), the top end of the upper valve rod (9) is connected with a worm gear operator (15), and a gland (10) is connected between the valve cover (14) and the upper valve rod (9).

4. An on-line maintenance top-loading integrated fixed ball valve according to claim 3, characterized in that a valve rod sealing ring (12) is arranged between the gland (10) and the upper valve rod (9), a gland sealing ring (11) is arranged between the gland (10) and the valve cover (14), and a valve cover sealing ring (13) is arranged between the valve cover (14) and the valve body (1).