CN211649475U

CN211649475U - Pipeline plugging device for gas engineering

Info

Publication number: CN211649475U
Application number: CN202020278998.2U
Authority: CN
Inventors: 张军
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-03-09
Filing date: 2020-03-09
Publication date: 2020-10-09
Anticipated expiration: 2030-03-09

Abstract

The utility model discloses a pipeline plugging device for gas engineering, including the pipeline, be fixed with air pump A and air pump B on the pipeline, air pump A with air pump B's air outlet all is connected with the air duct, the air duct inserts in the pipeline, air duct one end is connected with the gasbag, the both sides of gasbag all are provided with the inside casing, the inside casing is fixed with the pipeline inner wall, the inside casing is circular, the middle opening that sets up the square, air pump B right side is provided with the gas detector, the test probe of gas detector inserts in the pipeline; the utility model discloses a double-deck gasbag carries out the shutoff, is provided with the inside casing in the pipeline, utilizes the inside casing to restrict cylindric pipeline to control sealed mode, make after the gasbag inflation pack and inside casing inner wall paste tightly each other, thereby guarantee the leakproofness of shutoff, solved the not tight problem of current plugging device shutoff, the mode that adopts the shutoff of horizontal multilayer improves the leakproofness, has saved the cost and has also improved the security.

Description

Pipeline plugging device for gas engineering

Technical Field

The utility model belongs to the technical field of gas engineering, specifically be a pipeline plugging device for gas engineering.

Background

The natural gas pipeline refers to a pipeline for conveying natural gas (including associated gas produced by an oil field) from a mining place or a processing plant to a city gas distribution center or an industrial enterprise user, and is also called a gas transmission pipeline, and the gas transmission pipeline is assembled by connecting single pipes one by one. Modern gas collection pipelines and gas transmission pipelines are formed by connecting steel pipes through electric welding. The steel pipe has various types, such as a seamless pipe, a spiral seam pipe and a straight seam pipe, the seamless pipe is suitable for a pipeline with the pipe diameter of less than 529 mm, and the spiral seam pipe and the straight seam pipe are suitable for a large-diameter pipeline. In the gas engineering, because the gas pipeline is more, the condition of damage fault appears very easily, need salvage and maintain the gas pipeline, for this reason use plugging device to carry out the shutoff to the gas pipeline.

But current gas pipeline shutoff effect is relatively poor, for example chinese patent that publication number is CN208703399U pipeline plugging device for gas engineering, its gasbag adopts vertical inflation direction to fill the shutoff, and ordinary gas pipeline all is cylindric structure, this kind of shutoff mode is difficult to give the shutoff with the arcwall face completely through the gasbag inflation, for this reason need great pressure to let gasbag and curved pipe wall go to laminate, this not only needs the air pump that pressure is big, also can be higher to the quality requirement of gasbag simultaneously, the cost has been increased by a wide margin, the security is also not high.

Aiming at the problems in the related art, an effective solution is not provided at present, and therefore, a pipeline plugging device for gas engineering is provided.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

Not enough to prior art, the utility model provides a pipeline plugging device for gas engineering has advantages such as the leakproofness is strong, the security is high, has solved the poor, the security low scheduling problem of current pipeline plugging device leakproofness.

(II) technical scheme

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a pipeline plugging device for gas engineering, includes the pipeline, be fixed with air pump A and air pump B on the pipeline, air pump A with air pump B's air guide outlet all is connected with the air duct, the air duct inserts in the pipeline, air duct one end is connected with the gasbag, the both sides of gasbag all are provided with the inside casing, the inside casing is fixed with the pipeline inner wall, the inside casing is circularly, and the opening of square is seted up to the centre, air pump B right side is provided with the gas detector, the test probe of gas detector inserts in the pipeline.

In a further improvement, the air bag is cylindrical and horizontally arranged between the two inner frames.

In a further improvement, the cross section of the air bag is larger than the opening of the inner frame.

In a further improvement, the maximum length of the expansion of the air bag is larger than the distance between the two inner frames.

In a further improvement, the air guide pipe and the pipeline are sealed by welding.

In a further improvement, a signal pipe of a detection probe of the gas detector is sealed with the pipeline by welding.

(III) advantageous effects

Compared with the prior art, the utility model provides a pipeline plugging device for gas engineering possesses following beneficial effect:

1. this kind of pipeline plugging device for gas engineering, structural design is reasonable, and convenient to use adopts double-deck gasbag to carry out the shutoff, is provided with the inside casing in the pipeline, utilizes the inside casing to restrict cylindric pipeline to control sealed mode, make gasbag inflation back packing and inside casing inner wall paste each other tightly, thereby guarantee the leakproofness of shutoff.

2. This kind of pipeline plugging device for gas engineering has solved the not tight problem of current plugging device shutoff, adopts the mode of level multilayer shutoff to improve the leakproofness, has saved the cost and has also improved the security.

Drawings

Fig. 1 is a front view of the present invention;

FIG. 2 is a schematic structural view of the present invention during plugging;

fig. 3 is a sectional view of the pipeline of the present invention.

In the figure: 1. a pipeline; 2. an air pump A; 3. an air duct; 4. an air bag; 5. an air pump B; 6. an inner frame; 7. gas detector.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-3, the present invention provides a technical solution: the utility model provides a pipeline plugging device for gas engineering, includes pipeline 1, be fixed with air pump A2 and air pump B5 on the pipeline 1, air pump A2 with air pump B5's air guide outlet all is connected with air duct 3, air duct 3 inserts in the

pipeline

1, 3 one end of air duct are connected with gasbag 4, the both sides of gasbag 4 all are provided with inside casing 6, inside casing 6 is fixed with pipeline 1 inner wall, inside casing 6 is circularly, and the opening of square is seted up to the centre, air pump B5 right side is provided with gas detector 7, gas detector 7's test probe inserts in the pipeline 1.

As shown in fig. 1, the airbag 4 is in a cylindrical shape, is horizontally disposed between two inner frames 6, and is closed by the airbag 4 being in close contact with the inner frames 6 on the left and right sides, and the cross section of the airbag 4 is larger than the opening of the inner frame 6, so that the airbag 4 completely closes the opening of the inner frame.

As shown in fig. 2, the maximum expanded length of the air bag 4 is greater than the distance between the two inner frames 6, so that the air bag 4 can be tightly attached to the inner frames 6 on the two sides, the air duct 3 is sealed with the pipeline 1 by welding, a signal pipe of a detection probe of the gas detector 7 is sealed with the pipeline 1 by welding, the sealing degree of the welding is high, and the gas leakage is avoided. The air pump A2 and the air pump B5 are YJ-CQB 01.

The gas detector 7 is of E63M/snoroper-4 type.

The electrical components presented in the document are electrically connected to an external master controller and 220V commercial power, and the master controller can be a conventional known device controlled by a computer or the like.

The working principle is as follows: when needs carry out the shutoff to gas pipeline 1, accessible air pump A2 and air pump B5, aerify in gasbag 4, gasbag 4 expands to both sides, inflation back gasbag 4 pastes tightly each other with the left and right sides and inside casing 6, utilize gasbag 4 and the inside casing 6 mode of pasting tightly to carry out the shutoff with pipeline 1, and single gasbag 4 has carried out two shutoff, the effect of quadruple shutoff is then played to two gasbags 4, the leakproofness of shutoff can be better, accessible gas detector 7 detects the judgement whether shutoff is complete to the gas content in the pipeline 1 after the shutoff is accomplished. When the plugging is not needed, air can be simultaneously pumped by the air pump A2 and the air pump B5, and the air in the corresponding air bag 4 is pumped out, so that the air bag 4 is not tightly attached to the inner frames 6 at two sides, and the fuel gas from one side of the pipeline 1 can smoothly enter the pipeline 1 through the opening of the inner frame 6.

To sum up, the utility model has reasonable structural design and convenient use, adopts the double-layer air bag 4 for plugging, is provided with the inner frame 6 in the pipeline 1, utilizes the inner frame 6 to limit the cylindrical pipeline 1, and leads the air bag 4 to be filled after expansion and to be attached to the inner wall of the inner frame 6 in a left-right sealing mode, thereby ensuring the sealing performance of plugging; the problem of current plugging device shutoff not tight is solved, adopts the mode of level multilayer shutoff to improve the leakproofness, has saved the cost and has also improved the security.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "both ends", "one end", "the other end" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element to which the reference is made must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes may be made in these embodiments, and that modifications may be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a pipeline plugging device for gas engineering, includes pipeline (1), its characterized in that: be fixed with air pump A (2) and air pump B (5) on pipeline (1), air pump A (2) with the gas guide mouth of air pump B (5) goes out and all is connected with air duct (3), air duct (3) are inserted in pipeline (1), air duct (3) one end is connected with gasbag (4), the both sides of gasbag (4) all are provided with inside casing (6), inside casing (6) are fixed with pipeline (1) inner wall, inside casing (6) are circularly, and the opening of square is seted up to the centre, air pump B (5) right side is provided with gas detector (7), the test probe of gas detector (7) inserts in pipeline (1).

2. The pipeline plugging device for the gas engineering according to claim 1, wherein: the air bag (4) is cylindrical and horizontally arranged between the two inner frames (6).

3. The pipeline plugging device for the gas engineering according to claim 1, wherein: the section of the air bag (4) is larger than the opening of the inner frame (6).

4. The pipeline plugging device for the gas engineering according to claim 1, wherein: the maximum expanded length of the air bag (4) is larger than the distance between the two inner frames (6).

5. The pipeline plugging device for the gas engineering according to claim 1, wherein: the air duct (3) and the pipeline (1) are sealed by welding.

6. The pipeline plugging device for the gas engineering according to claim 1, wherein: and a signal pipe of a detection probe of the gas detector (7) is sealed with the pipeline (1) by welding.