CN216896380U

CN216896380U - Natural gas line plugging device

Info

Publication number: CN216896380U
Application number: CN202220585509.7U
Authority: CN
Inventors: 黄建卫; 黎端; 邓东颖
Original assignee: Zhaoqing Enn Clean Energy Co ltd
Current assignee: Zhaoqing Enn Clean Energy Co ltd
Priority date: 2022-03-17
Filing date: 2022-03-17
Publication date: 2022-07-05
Anticipated expiration: 2032-03-17

Abstract

The utility model provides a natural gas pipeline plugging device which comprises a pipe body assembly, a first diffusing assembly, a second diffusing assembly, a maintenance valve and a barometer, wherein the first diffusing assembly is arranged on the pipe body assembly; in the utility model, during maintenance, the gas filling pipe is used for filling gas into the gas blocking bag, so that the gas blocking bag expands to block the inside of the gas pipe, the gas is prevented from diffusing to a maintenance section when the maintenance valve leaks inwards, and the safety of an operation party of the maintenance section is ensured; when the gas pipe is closed through the maintenance valve, if the barometer detects that the air pressure value in the gas pipe is greater than a set upper limit value, the maintenance valve is proved to have an internal leakage phenomenon, the bleeding valve of the second bleeding component is opened to bleed the gas in the gas pipe, and the safety performance of the gas pipe is ensured; spacing ring and inflation and deflation pipe's setting, the ring plays spacing effect to hindering the air pocket, avoids hindering the phenomenon that the air pocket appears removing in the gas pipe, guarantees the stability that the choke bag was placed, and inflation and deflation pipe is convenient for go out the gassing to the choke bag, makes the gas pipe normally carry the gas after being favorable to overhauing.

Description

Natural gas line plugging device

Technical Field

The utility model belongs to the technical field of natural gas pipelines, and particularly relates to a natural gas pipeline plugging device.

Background

The gas pipeline needs to be maintained regularly, so that the gas pipeline is convenient to maintain, unsafe conditions can be found in time, and safe and stable operation of the gas pipeline is guaranteed.

At present need diffuse the structure and carry out the evacuation and diffuse when taking gas operation to overhaul, nevertheless overhaul the valve sometimes and leak the condition and cause and can not empty the completion completely, cause to overhaul and can not normally go on, influence efficiency and have certain potential safety hazard, an urgent need to develop a natural gas line plugging device to solve above-mentioned problem, and the marketing and the application of being convenient for.

Therefore, the utility model of the natural gas pipeline plugging device is very necessary.

SUMMERY OF THE UTILITY MODEL

In order to solve the above technical problems, the present invention provides a natural gas pipeline plugging device to solve the above mentioned problems. A natural gas pipeline plugging device comprises a pipe body assembly, a first diffusing assembly, a second diffusing assembly, a maintenance valve and a barometer, wherein the maintenance valve is arranged in the middle above the pipe body assembly; the first diffusing assembly and the second diffusing assembly are arranged on the pipe body assembly and are positioned on two sides of the maintenance valve; the barometer is arranged on the pipe body assembly and is positioned on the maintenance valve and the second diffusion assembly;

the pipe body assembly comprises a gas pipe, a gas blocking bag, two limiting rings and a gas charging and discharging pipe, the limiting rings are arranged on the upper side and the lower side of the inside of the gas pipe, and the limiting rings are positioned on one side, away from the maintenance valve, of the second diffusing assembly; the gas barrier bag is arranged between the limiting rings and is positioned inside the gas pipe; the inflation and deflation pipe is arranged above the gas blocking bag, and the upper end of the inflation and deflation pipe penetrates through the gas pipe.

Preferably, the first diffusion assembly comprises a diffusion pipe, a flange plate and a diffusion valve, the diffusion pipe is arranged on the gas pipe, and the diffusion pipe is positioned on one side of the maintenance valve, which is far away from the second diffusion assembly; the flange plate is arranged at the upper end of the diffusing pipe; the bleeding valve is installed on the bleeding pipe.

Preferably, the first diffusing component and the second diffusing component adopt the same structure; the lower end of the overhaul valve is positioned inside the gas pipe, and the overhaul valve is used for controlling the opening and closing of the gas pipe; the lower extreme of barometer is located the inside of gas pipe, and the barometer is used for detecting the atmospheric pressure in the gas pipe.

Preferably, one end of the gas pipe, which is far away from the first diffusing assembly, is an overhauling section; the gas blocking bag is used for blocking the inside of the gas pipe when being inflated; the limiting rings are symmetrically arranged and used for fixing the air barrier bag; the lower end of the inflation and deflation pipe is communicated with the inside of the air blocking bag, a sealing ring is arranged at the joint of the inflation and deflation pipe and the gas pipe, and an inflation and deflation valve is arranged at the upper end inside the inflation and deflation pipe.

Preferably, the lower end of the diffusing pipe is communicated with the inside of the gas pipe; the size of the flange plate is matched with that of the diffusing pipe, and the flange plate is used for connecting the diffusing pipe with a gas treatment system; the tail end of the bleeding valve is positioned in the bleeding pipe, and the bleeding valve is used for controlling the opening and the closing of the bleeding pipe.

Compared with the prior art, the utility model has the following beneficial effects:

1. according to the arrangement of the pipe body assembly, during maintenance, the gas filling pipe is used for filling gas into the gas barrier bag, so that the gas barrier bag is expanded to block the interior of the gas pipe, the gas is prevented from diffusing to the maintenance section when the maintenance valve is internally leaked, and the safety of the operation side of the maintenance section is ensured.

2. According to the arrangement of the second diffusing assembly and the barometer, when the gas pipe is closed through the maintenance valve, if the barometer detects that the pressure value in the gas pipe is larger than the set upper limit value, the maintenance valve is proved to have an inner leakage phenomenon, the diffusing valve of the second diffusing assembly is opened to diffuse gas in the gas pipe, and the safety performance of the gas pipe is guaranteed.

3. According to the gas check valve, due to the arrangement of the limit ring and the air inflation and deflation pipe, the limit ring has a limiting effect on the gas blocking bag, the phenomenon that the gas blocking bag moves in the gas pipe is avoided, the placing stability of the gas blocking bag is ensured, the air inflation and deflation pipe is convenient for deflating the gas blocking bag, and the gas pipe can convey gas normally after maintenance is finished.

Drawings

Fig. 1 is a schematic structural view of the present invention.

Fig. 2 is a schematic structural view of the tube assembly of the present invention.

FIG. 3 is a schematic diagram of a first dissipating assembly of the present invention.

In the figure:

the gas-liquid separation device comprises a pipe body component 1, a gas pipe 11, a gas blocking bag 12, a limiting ring 13, an inflation and deflation pipe 14, a first diffusion component 2, a diffusion pipe 21, a flange plate 22, a diffusion valve 23, a second diffusion component 3, a maintenance valve 4 and a barometer 5.

Detailed Description

The utility model is further described below with reference to the accompanying drawings:

example (b):

as shown in figures 1 to 3

The utility model provides a natural gas pipeline plugging device which comprises a pipe body assembly 1, a first diffusion assembly 2, a second diffusion assembly 3, an overhaul valve 4 and a barometer 5, wherein the overhaul valve 4 is arranged in the middle position above the pipe body assembly 1; the first diffusion component 2 and the second diffusion component 3 are arranged on the pipe body component 1, and the first diffusion component 2 and the second diffusion component 3 are positioned on two sides of the maintenance valve 4; the barometer 5 is arranged on the pipe body assembly 1, and the barometer 5 is positioned on the maintenance valve 4 and the second diffusion assembly 3; the first diffusion component 2 and the second diffusion component 3 adopt the same structure; the lower end of the maintenance valve 4 is positioned inside the gas pipe 11, and the maintenance valve 4 is used for controlling the opening and closing of the gas pipe 11; the lower end of the barometer 5 is located inside the gas pipe 11, and the barometer 5 is used to detect the gas pressure inside the gas pipe 11.

In this embodiment, the pipe body assembly 1 includes a gas pipe 11, an air blocking bag 12, two limiting rings 13 and an air charging and discharging pipe 14, the two limiting rings 13 are installed on the upper and lower sides inside the gas pipe 11, and the limiting rings 13 are located on one side of the second diffusing assembly 3 away from the maintenance valve 4; the gas-blocking bag 12 is arranged between the limiting rings 13, and the gas-blocking bag 12 is positioned inside the gas pipe 11; the inflation and deflation pipe 14 is arranged above the gas blocking bag 12, and the upper end of the inflation and deflation pipe 14 penetrates above the gas pipe 11; one end of the gas pipe 11, which is far away from the first diffusion assembly 2, is an overhaul section; the gas-blocking bag 12 is used for blocking the inside of the gas pipe 11 when being inflated; the limiting rings 13 are symmetrically arranged, and the limiting rings 13 are used for fixing the air-blocking bag 12; the lower end of the inflation and deflation pipe 14 is communicated with the inside of the gas barrier bag 12, a sealing ring is arranged at the joint of the inflation and deflation pipe 14 and the gas pipe 11, and an inflation and deflation valve is arranged at the upper end of the inside of the inflation and deflation pipe 14; during maintenance, the inflation pipe 14 is used for inflating the air blocking bag 12, so that the air blocking bag 12 expands to block the inside of the gas pipe 11, the gas is prevented from diffusing to a maintenance section when the maintenance valve 4 leaks inwards, and the safety of an operation party of the maintenance section is ensured; the spacing ring 13 plays spacing effect to hindering the gas pocket 12, avoids hindering the phenomenon that gas pocket 12 appears removing in gas pipe 11, guarantees to hinder the stability that gas pocket 12 placed, fills inflation pipe 14 and is convenient for deflate hindering gas pocket 12, is favorable to making gas pipe 11 normally carry the gas after the maintenance finishes.

In this embodiment, the first diffusion assembly 2 includes a diffusion pipe 21, a flange 22 and a diffusion valve 23, the diffusion pipe 21 is installed on the gas pipe 11, and the diffusion pipe 21 is located on one side of the maintenance valve 4 away from the second diffusion assembly 3; the flange 22 is arranged at the upper end of the diffusing pipe 21; the bleeding valve 23 is installed on the bleeding pipe 21; the lower end of the diffusing pipe 21 is communicated with the inside of the gas pipe 11; the size of the flange plate 22 is matched with that of the diffusing pipe 21, and the flange plate 22 is used for connecting the diffusing pipe 21 with a gas treatment system; the end of the bleed valve 23 is located inside the bleed pipe 21, and the bleed valve 23 is used for controlling the opening and closing of the bleed pipe 21; when closing gas pipe 11 through overhauing valve 4, if barometer 5 detects that 11 interior air pressure values of gas pipe are greater than the settlement upper limit value, the phenomenon of leaking in the evidence overhauls valve 4 exists opens the diffusion valve 23 of second diffusion subassembly 3, diffuses 11 internal gas of gas pipe, guarantees gas pipe 11's security performance.

According to the utility model, during maintenance, the inflation pipe 14 is used for inflating the air blocking bag 12, so that the air blocking bag 12 expands to block the interior of the air pipe 11, the gas is prevented from diffusing to a maintenance section when the maintenance valve 4 leaks inwards, and the safety of an operation party of the maintenance section is ensured; spacing ring 13 plays spacing effect to hindering air pocket 12, avoid hindering the phenomenon that air pocket 12 appears removing in gas pipe 11, guarantee to hinder the stability that air pocket 12 placed, inflation and deflation pipe 14 is convenient for bleed to hindering air pocket 12, be favorable to making gas pipe 11 normally carry the gas after the maintenance is finished, when closing gas pipe 11 through maintenance valve 4, if barometer 5 detects 11 interior gas pressure values of gas pipe and is greater than the settlement upper limit value, prove that maintenance valve 4 exists the phenomenon of interior hourglass, open the valve 23 that diffuses of second diffusion subassembly 3, diffuse gas in gas pipe 11, guarantee gas pipe 11's security performance.

The technical solutions of the present invention or similar technical solutions designed by those skilled in the art based on the teachings of the technical solutions of the present invention are all within the scope of the present invention to achieve the above technical effects.

Claims

1. The utility model provides a natural gas line plugging device which characterized in that: the pipe body assembly comprises a pipe body assembly (1), a first diffusing assembly (2), a second diffusing assembly (3), a maintenance valve (4) and a barometer (5), wherein the maintenance valve (4) is arranged in the middle position above the pipe body assembly (1); the first diffusing component (2) and the second diffusing component (3) are arranged on the pipe body component (1), and the first diffusing component (2) and the second diffusing component (3) are positioned on two sides of the maintenance valve (4); the barometer (5) is arranged on the pipe body assembly (1), and the barometer (5) is positioned on the maintenance valve (4) and the second diffusion assembly (3);

the gas pipe assembly (1) comprises a gas pipe (11), a gas barrier bag (12), two limiting rings (13) and a gas charging and discharging pipe (14), the limiting rings (13) are arranged on the upper side and the lower side of the interior of the gas pipe (11), and the limiting rings (13) are positioned on one side, away from the maintenance valve (4), of the second diffusion assembly (3); the gas blocking bag (12) is arranged between the limiting rings (13), and the gas blocking bag (12) is positioned inside the gas pipe (11); the inflation and deflation pipe (14) is arranged above the gas blocking bag (12), and the upper end of the inflation and deflation pipe (14) penetrates above the gas pipe (11).

2. The natural gas pipeline plugging device of claim 1, wherein: the first diffusion assembly (2) comprises a diffusion pipe (21), a flange plate (22) and a diffusion valve (23), the diffusion pipe (21) is installed on the gas pipe (11), and the diffusion pipe (21) is located on one side, away from the second diffusion assembly (3), of the maintenance valve (4); the flange plate (22) is arranged at the upper end of the diffusing pipe (21); the bleeding valve (23) is mounted on the bleeding pipe (21).

3. The natural gas pipeline plugging device of claim 1, wherein: the first diffusing component (2) and the second diffusing component (3) adopt the same structure; the lower end of the maintenance valve (4) is positioned in the gas pipe (11), and the maintenance valve (4) is used for controlling the opening and closing of the gas pipe (11); the lower extreme of barometer (5) is located the inside of gas pipe (11), and barometer (5) are used for detecting the atmospheric pressure in gas pipe (11).

4. The natural gas pipeline plugging device of claim 1, wherein: one end of the gas pipe (11) departing from the first diffusing assembly (2) is an overhauling section; the gas blocking bag (12) is used for blocking the interior of the gas pipe (11) when being inflated; the limiting rings (13) are symmetrically arranged, and the limiting rings (13) are used for fixing the air blocking bags (12); the lower end of the inflation and deflation pipe (14) is communicated with the interior of the gas blocking bag (12), a sealing ring is arranged at the joint of the inflation and deflation pipe (14) and the gas pipe (11), and an inflation and deflation valve is arranged at the upper end of the interior of the inflation and deflation pipe (14).

5. The natural gas pipeline plugging device of claim 2, wherein: the lower end of the diffusing pipe (21) is communicated with the inside of the gas pipe (11); the size of the flange plate (22) is matched with that of the diffusing pipe (21), and the flange plate (22) is used for connecting the diffusing pipe (21) with a gas treatment system; the tail end of the bleeding valve (23) is positioned in the interior of the bleeding pipe (21), and the bleeding valve (23) is used for controlling the opening and closing of the bleeding pipe (21).