CN211716013U

CN211716013U - Online leaking stoppage tool for local slight damage of high-pressure gas pipeline corrugated compensator

Info

Publication number: CN211716013U
Application number: CN201922330580.1U
Authority: CN
Inventors: 蒋建波; 何国锋; 赵修远; 蔡冲冲; 马克申
Original assignee: Jiangsu Yonggang Group Co Ltd
Current assignee: Jiangsu Yonggang Group Co Ltd
Priority date: 2019-12-23
Filing date: 2019-12-23
Publication date: 2020-10-20
Anticipated expiration: 2029-12-23

Abstract

The utility model discloses a local slight damage online leaking stoppage instrument of high pressure gas pipeline corrugated compensator, the device compress tightly the clamp plate on the gas leakage department surface of corrugated compensator bellows through simple support and adjusting bolt, and easy operation is swift, and interim leaking stoppage is effectual, can maintain longer time relatively, provides sufficient preparation time for further restoreing or changing.

Description

Online leaking stoppage tool for local slight damage of high-pressure gas pipeline corrugated compensator

Technical Field

The utility model belongs to the technical field of high-pressure gas pipeline carries, especially a local slight damage online leaking stoppage instrument of high-pressure gas pipeline ripple compensator.

Background

The gas pipeline corrugated compensator is a compensation element, absorbs the size change caused by the expansion and contraction of the pipeline and the like, and is one of important spare parts of pipeline system equipment. Because the motion of the gas pipeline changes in the conveying process and the medium is high-pressure gas with a certain corrosion effect, the side wall of the corrugated pipe can crack and damage slightly after the corrugated compensator runs for a period of time.

The current common practice is to directly replace the corrugated compensator, but the replacement inevitably causes the gas conveying process to have to be suspended and interrupted, and the production efficiency is influenced. Some methods of repairing the ripple compensator are provided in the prior patents. For example, patent CN102261538B provides an on-line repairing method for a corrugated compensator of a gas pipeline, which comprises the steps of plugging a leak point with a wooden nail or plastering yellow mud, cutting a new compensator with a slightly larger diameter into eight pieces of supplementary materials on average, splicing the supplementary materials outside the damaged corrugated compensator, and finally welding. Although the mode can not cause the pipeline to be stopped, the process is applied to the occasion that the corrugated compensator is continuously used for a long time, is not suitable for the occasion that only temporary quick plugging is needed and then further repair or replacement is carried out, and has the disadvantages of complex operation, high requirement on operators and long time consumption.

For example, patent nos. CN201916641U and CN201925656U are both made by completely wrapping the surface of the original corrugated compensator with a sleeve and filling various fillers between the sleeve and the corrugated compensator. The whole structure is complex, the operation is complex, and the method is not suitable for temporary quick repair occasions.

Disclosure of Invention

In order to solve the problems of the prior art, the utility model provides an online plugging tool for the local slight damage of the corrugated compensator of the high-pressure gas pipeline, which can perform the rapid online plugging on the air leakage point of the corrugated compensator, and is simple, rapid and safe; and safe construction conditions are provided for the whole package or replacement of the subsequent corrugated compensator. The method is realized by the following technical scheme.

An online leakage stoppage tool for a local slight damage of a corrugated compensator of a high-pressure gas pipeline comprises a support, an adjusting bolt and a pressing plate, wherein two ends of the support are respectively fixed on end connecting pipes at two ends of a corrugated pipe, and the support is provided with at least 2 threaded through holes; the surface of one side of the pressure plate is concave and matched with the surface of the air leakage part; the adjusting bolt penetrates through the threaded through hole to press the pressing plate on the surface of the corrugated pipe, so that the center of the inner concave surface of the pressing plate is attached to the air leakage position.

The principle of the leakage stopping tool is that the pressure plate is pressed on the surface of the corrugated pipe of the corrugated compensator by using the adjusting bolt, and the leakage point on the surface is compressed, so that high-pressure coal gas is prevented from leaking. Because the corrugated compensator generates and keeps certain deformation for a long time when high-pressure gas is conveyed, if the gas pipeline continues to operate after being plugged by the plugging tool, the corrugated compensator can not generate new obvious deformation in a short time, and further the tightness of the joint of the pressing plate and the surface of the corrugated pipe can not be influenced. The purpose of the leakage stopping tool is to realize quick temporary leakage stopping of the corrugated pipe of the corrugated compensator, and the leakage stopping effect can be kept for a period of time after effective leakage stopping, so that the temporary emergency effect is achieved. When further processing is needed, the adjusting bolt is directly screwed off, and the pressing plate is taken down, so that the next processing can be carried out.

Preferably, the surface of one side of the pressure plate, which is far away from the air leakage position, is the same as the surface of one side of the pressure plate, which is concave inwards, and the pressure plate is pressed by the adjusting bolt along the radial direction of the corrugated pipe. The shape of clamp plate is similar to convex tile shape, and 2 side surface radians of clamp plate are the same (being parallel to each other promptly), and the bolt compresses tightly the clamp plate along the bellows is radial for the clamp plate atress is more even, and is inseparabler with the laminating of bellows surface.

Preferably, the surface of the pressure plate, which is far away from one side of the air leakage position, is provided with a limiting blind hole, and the position of each limiting blind hole corresponds to 1 threaded through hole.

Preferably, an elastic rubber layer is arranged on one concave side surface of the pressure plate. The elastic rubber layer deforms when the pressing plate is pressed tightly, so that the pressing plate and the surface of the corrugated pipe are combined more tightly.

Preferably, the length of the inner concave surface of the pressure plate is 1/25-1/20 of the outer circumference of the corrugated pipe. The purpose of limiting the length of the concave surface of the pressing plate is to ensure that the pressing plate is stressed uniformly to a certain degree and improve the pressing effect.

Preferably, a nut is welded at the threaded through hole, so that the adjusting bolt penetrates through the threaded through hole and the nut. The cooperation effect of screw thread through-hole and nut can guarantee that adjusting bolt does not become flexible.

Preferably, two ends of the support are fixed on the end connecting pipes at two ends of the corrugated pipe in a welding mode.

Compared with the prior art, the beneficial effects of the utility model are that: the on-line quick plugging tool for the high-pressure gas pipeline corrugated compensator is simple and quick to operate, good in temporary plugging effect, capable of being maintained for a long time relatively and providing sufficient preparation time for further repair or replacement.

Drawings

FIG. 1 is a front view of an in-line lost circulation tool according to example 1;

FIG. 2 is a top view of the in-line lost circulation tool of example 1;

FIG. 3 is a cross-sectional view taken at A-A of FIG. 2;

FIG. 4 is a top view of the in-line lost circulation tool of example 2;

FIG. 5 is a cross-sectional view at B-B of FIG. 4;

FIG. 6 is a schematic structural view of a press plate of the on-line plugging tool according to example 2;

FIG. 7 is a cross-sectional view of the platen of FIG. 5 at C-C;

in the figure: 1. a support; 2. adjusting the bolt; 3. pressing a plate; 4. a bellows; 5. a gas leakage position; 6. end connecting pipes; 7. a threaded through hole; 8. an elastic rubber layer; 9. and limiting blind holes.

Detailed Description

The technical solutions of the embodiments in this patent will be described clearly and completely with reference to the accompanying drawings, and it is obvious that the described embodiments are only some embodiments, not all embodiments, of this patent. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the patent without making creative efforts, shall fall within the protection scope of the patent.

In the description of this patent, it is noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", "top", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience in describing the patent and for simplicity in description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the patent. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of this patent, it is noted that, unless expressly stated or limited otherwise, the terms "mounted," "connected," and "communicating" are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. It is to be noted that all the figures are exemplary representations. The meaning of the above terms in this patent may be specifically understood by those of ordinary skill in the art.

The patent is described in further detail below with reference to specific embodiments and with reference to the attached drawings.

Example 1

As shown in fig. 1-3, the on-line leak stoppage tool for the local slight damage of the high-pressure gas pipeline corrugated compensator provided by the embodiment includes a support 1, an adjusting bolt 2 and a pressing plate 3, wherein two ends of the support 1 are respectively welded on end connecting pipes 6 at two ends of a corrugated pipe 4, and the support 1 is provided with 2 threaded through holes 7; the surface of one side of the pressing plate 3 is concave and matched with the surface of the air leakage position 5, and the surface of one side of the pressing plate 3, which is far away from the air leakage position 5, is a plane; the adjusting bolt 2 penetrates through the threaded through hole 7 to tightly press the pressing plate 3 on the surface of the corrugated pipe 4, so that the center of the inner concave surface of the pressing plate 3 is attached to the air leakage position 5.

Example 2

As shown in fig. 4-7, the on-line leakage stoppage tool for the local slight damage of the corrugated compensator of the high-pressure gas pipeline provided by the embodiment includes a support 1, an adjusting bolt 2 and a pressing plate 3, wherein the support 1 is over against an air leakage part 5 of a corrugated pipe 4 of the corrugated compensator, two ends of the support 1 are respectively welded on end connecting pipes 6 at two ends of the corrugated pipe 4, and the support 1 is provided with 2 threaded through holes 7; the surface of one side of the pressing plate 3 is concave and matched with the surface of an air leakage position 5, and the surface of one side of the pressing plate 3, which is far away from the air leakage position 5, is the same as the surface of the concave side of the pressing plate 3 in shape; an elastic rubber layer 8 is arranged on the surface of one concave side of the pressing plate 3; the surface of one side, away from the air leakage part 5, of the pressing plate 3 is provided with a limiting blind hole 9, and the position of each limiting blind hole 9 corresponds to 1 threaded through hole 7; adjusting bolt 2 is followed bellows 4 radially passes screw thread through-hole 7 will clamp plate 3 is pressed 4 circumferencial direction of bellows compress tightly 4 surfaces, make gas leakage department 5 laminate in 3 internal concave surfaces of clamp plate are positive.

Compared with embodiment 1, the embodiment changes the shape of the surface of the pressure plate on the side far away from the inner recess, and adjusts the screwing direction of the adjusting bolt. The elastic rubber layer is arranged on the concave side surface of the pressing plate, so that the pressing plate and the corrugated pipe are attached more tightly, and the position of the bolt can be fixed by the limiting blind hole.

The above embodiments describe the implementation of the present invention in detail, however, the present invention is not limited to the specific details of the above embodiments. Within the scope of the claims and the technical idea of the present invention, various simple modifications and changes can be made to the technical solution of the present invention, and these simple modifications all belong to the protection scope of the present invention.

Claims

1. An online leakage stoppage tool for a local slight damage of a corrugated compensator of a high-pressure gas pipeline is characterized by comprising a support, an adjusting bolt and a pressing plate, wherein two ends of the support are respectively fixed on end connecting pipes at two ends of a corrugated pipe, and the support is provided with at least 2 threaded through holes; the surface of one side of the pressure plate is concave and matched with the surface of the air leakage part; the adjusting bolt penetrates through the threaded through hole to press the pressing plate on the surface of the corrugated pipe, so that the center of the inner concave surface of the pressing plate is attached to the air leakage position.

2. The tool for on-line leakage stoppage due to local slight damage of the high-pressure gas pipeline corrugated compensator as claimed in claim 1, wherein the surface of one side of the pressure plate, which is far away from the gas leakage part, has the same shape as the surface of one side of the pressure plate, which is concave inwards, and the pressure plate is pressed by the adjusting bolt along the radial direction of the corrugated pipe.

3. The on-line leakage stoppage tool for the local slight damage of the high-pressure gas pipeline corrugated compensator as claimed in claim 1 or 2, wherein the surface of one side of the pressure plate, which is far away from the gas leakage position, is provided with a limiting blind hole, and the position of each limiting blind hole corresponds to 1 threaded through hole.

4. The on-line leak stoppage tool for the local slight damage of the corrugated compensator of the high-pressure gas pipeline as recited in claim 1, wherein an elastic rubber layer is arranged on the concave side surface of the pressure plate.

5. The tool for on-line leak stoppage due to partial minor damage of the corrugated compensator for high pressure gas pipelines as claimed in claim 1, wherein the length of the inner concave surface of the pressure plate is 1/25-1/20 of the outer circumference of the corrugated pipe.

6. The tool for on-line leak stoppage of local slight damage of the high-pressure gas pipeline ripple compensator according to claim 1, wherein a nut is welded at the threaded through hole, so that the adjusting bolt passes through the threaded through hole and the nut.

7. The tool for on-line leak stoppage of local slight damage of the corrugated compensator of the high-pressure gas pipeline as claimed in claim 1, wherein both ends of the support are fixed on the end pipes at both ends of the corrugated pipe by welding.