CN214147031U

CN214147031U - Pipeline plugging and isolating device

Info

Publication number: CN214147031U
Application number: CN202022653315.XU
Authority: CN
Inventors: 惠文颖; 牛健壮; 赵康; 朱钰; 程磊; 袁涛; 曹磊; 王宇; 吴月玲; 王鹏程
Original assignee: Liaoning Lianhai Petrochemical Group Co ltd
Current assignee: Liaoning Lianhai Petrochemical Group Co ltd
Priority date: 2020-11-17
Filing date: 2020-11-17
Publication date: 2021-09-07
Anticipated expiration: 2030-11-17

Abstract

The utility model provides a pipeline shutoff isolating device, belongs to pipeline shutoff technical field, including pipeline, pig, isolation bag, disk plugging device, isolation bag's ooff valve, isolation bag's gas tube, isolation bag's the wire rope that pulls of isolation bag links to each other with the pig, and isolation bag's gas tube passes the pig middle part, the trompil end is arranged in to the disk plugging device. The utility model discloses a pipeline does not trompil gets the isolation method of isolation bag, makes the pipeline fire isolation operation simple, safe.

Description

Pipeline plugging and isolating device

Technical Field

The utility model belongs to the technical field of the pipeline shutoff, especially, relate to a pipeline shutoff isolating device.

Background

When the damaged oil and gas pipelines are plugged, maintained and repaired, the adopted plugging process method is that two holes are usually formed in the pipelines, one hole is used for a lower plugging device, the other hole is used for a lower plugging bag or an isolation bag, and the plugging bag or the isolation bag is taken out from the hole after the plugging task is finished. The plugging and isolating method needs two holes, and has large workload and complex construction process.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, the utility model provides a pipeline shutoff isolating device can realize the shutoff isolation construction safely, efficient.

The utility model adopts the technical scheme as follows:

a pipeline blocking and isolating device comprises a pipe cleaner, an isolating bag and a disc type stopper, wherein the disc type stopper is arranged at the upper stream inside an opening end of a pipeline, the isolating bag comprises a switch valve of the isolating bag, an inflation pipe of the isolating bag, a traction steel wire rope of the isolating bag and an isolating bag body, the inflation pipe of the isolating bag is connected with the isolating bag body, the switch valve of the isolating bag is arranged at the other end of the inflation pipe of the isolating bag, the traction steel wire rope of the isolating bag is arranged outside the isolating bag body, the pipe cleaner comprises the pipe cleaner, a pipe cleaner sealing plate, a pipe cleaner partition plate, a pipe cleaner guide plate, a pipe cleaner framework, a pipe cleaner tail hook and a fastening bolt nut, the pipe cleaner sealing plate, the pipe cleaner partition plate and the pipe cleaner guide plate are fastened outside the pipe cleaner framework through the fastening bolt nut, the traction steel wire rope, the inflatable tube of the isolation bag penetrates through the middle part of the pipe cleaner framework, and the isolation bag is arranged at one end of the approximate disc type plugging device.

Furthermore, a traction steel wire rope of the isolation bag is connected with a tail hook of the pipe cleaner through a hoop.

The utility model has the advantages that:

the utility model relates to a pipeline shutoff isolating device, pipeline only need open a hole, and the isolation bag does not need other trompil to send and gets, and the isolation bag is taken out after going to the pump station along with the dredging pipe ware. A safe and efficient plugging and isolating method is provided for oil and gas pipelines.

Drawings

Fig. 1 is a schematic structural view of the isolation plugging device of the present invention;

FIG. 2 is a schematic view of the tube cleaning structure of the present invention;

fig. 3 is a schematic view of the isolation bag of the present invention.

In the figure: 1 is a pipeline; 2, a pipe cleaner; 3 is an isolation bag; 4 is a disc type plugging device; 5 is a hoop; 2.1 is a sealing plate of a pipe cleaner; 2.2 is a pipe cleaner clapboard; 2.3 is a pipe cleaner guide plate; 2.4 is a tube cleaner framework; 2.5 is a pipe cleaner tail hook; 2.6 is a fastening bolt and a fastening nut; 3.1 is a switch valve of the isolation capsule; 3.2 is an inflation tube of the isolation bag; 3.3 is a traction steel wire rope of the isolation bag; and 3.4 is an isolating capsule body.

Detailed Description

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

The utility model provides a pipeline shutoff isolating device, includes pipeline 1, pig 2, isolation bag 3, disk plugging device 4, clamp 5, pig 2 comprises pig closing plate 2.1, pig baffle 2.2, pig deflector 2.3, pig skeleton 2.4, pig tail hook 2.5, fastening bolt nut 2.6, fixes pig closing plate 2.1, pig baffle 2.2, pig deflector 2.3 on pig skeleton 2.4 through fastening bolt nut 2.6. The isolating bag 3 consists of an on-off valve 3.1 of the isolating bag, an inflation tube 3.2 of the isolating bag, a traction steel wire rope 3.3 of the isolating bag and an isolating bag body 3.4, and the isolating bag 3 and the pipe cleaner 2 are connected through the traction steel wire rope 3.3 of the isolating bag 3 and are fixed on a pipe cleaner tail hook 2.5 of the pipe cleaner 2 through a hoop 5. The air-filled tube 3.2 of the isolation capsule 3 passes through the middle part of the pig framework 2.4 of the pig 2, and the disc type stopper 4 is arranged at the upstream of the open end.

A method of pipeline block isolation, the method comprising the steps of:

1, drilling a hole in a pipeline and setting a disc type plugging device;

2) pipe breaking and cleaning: breaking off the damaged pipe, taking down the damaged pipe, and cleaning the inner side of the pipe orifice part of the pipeline;

3) connecting: the isolation bag is connected with a pipe cleaner through a traction steel wire rope of the bag, and an inflation tube of the isolation bag penetrates through the pipe cleaner;

4) and (3) inflating: inflating the isolation bag to slightly pressurize;

5) putting an isolation capsule and a pipe cleaner into a pipeline: putting the pipe cleaner and the isolation bag into the pipeline, wherein the isolation bag is put into the pipeline firstly;

6) secondary inflation: then the isolation bag is inflated, and the pressure reaches the rated pressure of the isolation bag;

7) pipe breaking: closing the air inflation pipe valve of the isolation bag, and disconnecting the air inflation pipe and putting the air inflation pipe into the pipeline;

8) plugging and isolating;

9) recovering the pipe cleaner and the isolation capsule: after the pipeline welding fire is completed, the disc type plugging is withdrawn to seal the hole, the pipe cleaner and the isolation bag are left in the closed pipeline together, and after the pipeline is normally operated under pressure, the isolation bag is broken and is taken out from a downstream pump station along with the operation of the pipe cleaner.

The pipe cleaner and the isolation capsule are connected into a whole.

Example 1:

opening a hole: and a lower disc type plugging device 4.

Pipe breaking and cleaning: breaking the damaged pipe, taking down the damaged pipe, and cleaning the inner side of the pipe orifice part of the broken pipe section on the pipeline 1;

connecting: the isolation bag 3 is connected with the pipe cleaner 2 through a traction steel wire rope 3.3 of the bag, and an inflation tube 3.2 of the isolation bag 3 penetrates through the pipe cleaner 2;

and (3) inflating: inflating the isolation bag 3 for micro-positive pressure;

placing the isolation capsule 3 and the pig 2 into the pipeline: putting the pipe cleaner 2 and the isolation capsule 3 into the pipeline together, wherein the isolation capsule 3 is put into the pipeline 1 firstly;

secondary inflation: then the isolation bag 3 is inflated, and the pressure reaches the rated pressure of the isolation bag 3;

pipe breaking: the air inflation switch valve 3.1 of the isolation bag 3 is closed, and the air inflation tube 3.2 is disconnected and is placed into the pipeline 1;

plugging and isolating: plugging isolation is realized;

recovery of pig 2 and isolation capsule 3: after the pipeline welding fire is completed, the disc type plugging device 4 is withdrawn for sealing holes, the pipe cleaner 2 and the isolation bag 3 are left in the closed pipeline 1 together, and after the pipeline is normally operated under pressure, the isolation bag 3 can be broken and is taken out from a downstream pump station along with the operation of the pipe cleaner 2.

The utility model relates to a pipeline shutoff keeps apart processing method, the pipeline only needs to open a hole, keeps apart the bag and need not open the hole in addition and send and get, keeps apart the bag and takes out after dredging pipe ware arrives the pump station.

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 modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.

Claims

1. A pipeline plugging and isolating device is characterized in that: including dredging ware (2), isolation bag (3), disk plugging device (4), pipeline open end inside upper reaches are arranged in to disk plugging device (4), isolation bag (3) are including ooff valve (3.1), the gas tube (3.2), the traction wire rope (3.3), the isolation bag of isolation bag, gas tube (3.2) and the isolation bag of isolation bag link to each other with isolation bag (3.4), the gas tube (3.2) other end of isolation bag is equipped with ooff valve (3.1) of isolation bag, isolation bag (3.4) outside is equipped with traction wire rope (3.3) of isolation bag, dredging ware (2) include dredging ware (2) are by sealing plate (2.1), dredging ware baffle (2.2), dredging ware deflector (2.3), dredging ware skeleton (2.4), dredging ware tail hook (2.5), bolt fastening nut (2.6), dredging ware (2.1), The pipeline cleaner baffle plate (2.2) and the pipeline cleaner guide plate (2.3) are fastened outside the pipeline cleaner framework (2.4) through fastening bolts and nuts (2.6), a traction steel wire rope (3.3) of the isolation bag (3) is connected with a pipeline cleaner tail hook (2.5) of the pipeline cleaner (2), an inflation tube (3.2) of the isolation bag (3) penetrates through the middle part of the pipeline cleaner framework (2.4), and the isolation bag (3) is arranged at one end close to the disc type plugging device (4).

2. The pipeline plugging and isolating device of claim 1, wherein: the traction steel wire rope (3.3) of the isolation capsule is connected with the pipe cleaner tail hook (2.5) through a hoop (5).