CN213930427U

CN213930427U - Underground high-pressure gas pipeline diffusion valve group device

Info

Publication number: CN213930427U
Application number: CN201921781878.8U
Authority: CN
Inventors: 王健; 杨阳; 金祖玲; 何哲; 李悦
Original assignee: Tianjin Gas Heat Planning Design And Research Institute Co ltd
Current assignee: Tianjin Gas Heat Planning Design And Research Institute Co ltd
Priority date: 2019-01-11
Filing date: 2019-10-23
Publication date: 2021-08-10
Anticipated expiration: 2029-10-23

Abstract

The utility model discloses a bury formula high pressure gas pipeline and diffuse valves device, include: the two valves are arranged in one well, two branches are connected and converged into one path and are connected with a relief well arranged at the tail end of a position which is more than or equal to 10 meters away from the main line directly-buried valve well. The utility model discloses, when any one side emergence accident in main direct-burried valve well both sides needs to reduce pipe network pressure and salvagees, close the main valve, open the relief well installation and diffuse the pipe, open stop valve, the ball valve that needs the side of diffusing in proper order, diffuse the operation.

Description

Underground high-pressure gas pipeline diffusion valve group device

Technical Field

The utility model belongs to the technical field of the gas pipeline safe operation, especially, relate to a bury formula high pressure gas pipeline and diffuse valves device.

Background

Along with the rapid development of economy in China and the continuous expansion of urban scale, the operating pressure of an urban gas pipeline main trunk line is increased, how to strengthen the safety management of an urban high-pressure gas pipeline and reduce the influence of high-pressure gas pipeline accidents on the surrounding environment and downstream users becomes a big subject of the development of the current gas industry; in addition, the above-ground gas valve chamber has difficulty in collecting land, which affects the beauty of the environment and is easily broken.

Disclosure of Invention

To the technical problem who exists among the above-mentioned prior art, the utility model aims at providing a bury formula high pressure gas pipeline and diffuse valves device.

For realizing the utility model discloses a purpose, the utility model provides a bury formula high pressure gas pipeline and diffuse valves device, include: the two valves are arranged in one well, two branches are connected and converged into one path and are connected with a relief well arranged at the tail end of a position which is more than or equal to 10 meters away from the main line directly-buried valve well.

Compared with the prior art, the beneficial effects of the utility model are that, when any one side emergence accident in main direct-burried valve well both sides needs to reduce pipe network pressure and salvagees, close the main valve, open the diffuse well installation and diffuse the pipe, open stop valve, the ball valve of the side of need diffusing in proper order, diffuse the operation.

Drawings

Fig. 1 is a schematic structural diagram of an embodiment of the present invention;

in the figure, a main line 1 directly-buried valve well, a first tee joint 2, a seamless steel pipe 3, a thrust pier 4, a cast steel ball valve 5, a cast steel stop valve 6, a bend 7, a welded steel flange with a radial butt joint 8, a second tee joint 9, a bleeding valve well 10, a bleeding well 11 and a flange blind plate 12 are arranged.

Detailed Description

The present invention will be described in further detail with reference to the following drawings and specific embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

It should be noted that "connected" and words used in this application to express "connected," such as "connected," "connected," and the like, include both direct connection of one element to another element and connection of one element to another element through another element.

It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict.

As shown in fig. 1, in this embodiment, a DN700 × DN200 tee is added on each side of the main line directly-buried valve well, a DN200 seamless steel pipe is connected, a DN200 ball valve and a stop valve are arranged behind each tee (two valves are installed in one well), two branches are connected and converged into one branch, and a relief well is arranged at the end of a position which is not less than 10 meters away from the main line directly-buried valve well.

When any one side of two sides of the main line directly-buried valve well is in an accident and needs to reduce the pressure of a pipe network for rush repair, the main line valve is closed, the relief well is opened to install the relief pipe, and the stop valve and the ball valve on the side needing relief are sequentially opened for relief operation.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of improvements and decorations can be made without departing from the principle of the present invention, and these improvements and decorations should also be regarded as the protection scope of the present invention.

Claims

1. The utility model provides a bury formula high pressure gas pipeline and diffuse group valve device which characterized in that includes: the two valves are arranged in one well, two branches are connected and converged into one path and are connected with a relief well arranged at the tail end of a position which is more than or equal to 10 meters away from the main line directly-buried valve well.