CN210322220U

CN210322220U - Pipeline pressurization leak detection system

Info

Publication number: CN210322220U
Application number: CN201921531323.8U
Authority: CN
Inventors: 郑阳; 富跃武; 顾礼新
Original assignee: Shanghai Clear Environmental Protection Science And Technology Co ltd
Current assignee: Shanghai Clear Environmental Protection Science And Technology Co ltd
Priority date: 2019-09-16
Filing date: 2019-09-16
Publication date: 2020-04-14
Anticipated expiration: 2029-09-16

Abstract

The utility model discloses a pipeline pressurization leak hunting system, include: a medium line for conveying a pressure medium; two hollow elastic bodies which are communicated with each other; the medium pipeline comprises a first pipeline communicated with the hollow elastic body and a second pipeline arranged in parallel with the first pipeline; the first pipeline is provided with a pressure gauge, and the second pipeline is provided with a pressure gauge; when the two hollow elastic bodies are respectively arranged at two ends of the internal channel of the pipeline, pressure media are filled into the hollow elastic bodies through the first pipeline, the side walls of the hollow elastic bodies are pressed and expanded along the radial direction of the pipeline to be attached to the inner side walls of the pipeline, so that the internal channel between the two hollow elastic bodies forms a sealed space, and the second pipeline is communicated with the sealed space. The utility model discloses compact structure, simple, easily realize, portable and safety in utilization are high.

Description

Pipeline pressurization leak detection system

Technical Field

The utility model relates to a pipeline leak hunting technical field indicates a pipeline pressurization leak hunting system especially.

Background

In daily life, the pipeline generally plays a role in conveying fluid, so that the pipeline needs to be ensured to be leak-free, so as to ensure that a medium conveyed in the pipeline cannot flow out, and the medium is wasted; when the pipeline is used for conveying toxic, harmful or explosive fluids, safety accidents are even caused, and even the health or life of human bodies or the environment is damaged, so that the leakage detection of the pipeline becomes an indispensable inspection item in the production or use process of the pipeline. How to provide a pipeline leakage detection system which is portable and safe to use is a difficult problem to be solved by the technical personnel in the field.

Disclosure of Invention

The utility model aims at providing a pipeline pressurization leak hunting system, compact structure, simple, easily realization, portable and safety in utilization are high.

The utility model provides a technical scheme as follows:

a pipeline pressurization leak detection system, comprising:

a medium line for conveying a pressure medium;

two hollow elastic bodies which are communicated with each other;

the medium pipeline comprises a first pipeline communicated with the hollow elastic body and a second pipeline arranged in parallel with the first pipeline;

the first pipeline is provided with a pressure gauge, and the second pipeline is provided with a pressure gauge;

when the two hollow elastic bodies are respectively arranged at two ends of an internal channel of a pipeline, pressure media are filled into the hollow elastic bodies through the first pipeline, the side walls of the hollow elastic bodies expand under pressure along the radial direction of the pipeline to be attached to the inner side wall of the pipeline, so that a sealed space is formed in the internal channel between the two hollow elastic bodies, and the second pipeline is communicated with the sealed space.

In the technical scheme, the two hollow elastic bodies are communicated with each other, so that the first pipeline is only communicated with one hollow elastic body; meanwhile, the pressure gauge can represent whether the hollow elastic body is attached to the inner wall of the pipeline or not, and can represent whether the hollow elastic body is attached to the inner wall of the pipeline all the time, so that the pressure stabilizing condition of the hollow elastic body is represented; preferably, the sealing space and the pressure medium filled in the hollow elastomer are the same, so that the medium pipeline of the utility model is simplified; preferably, the arrangement of the pressure gauge enables a worker to avoid observing and judging whether the hollow elastic body is attached to the pipeline by human eyes, so that the phenomenon that the hollow elastic body is not attached to the inner side wall of the pipeline to cause distortion of pipeline leakage detection or the phenomenon that the hollow elastic body influences the service life of the hollow elastic body due to transitional expansion or directly bursts and the like is avoided, and the scientificity and the accuracy of pipeline leakage detection and the use safety are improved due to the arrangement of the pressure gauge; thereby whether leak hunting result is accurate and scientific through the pressure quick judgement pipeline of manometer detection seal space's pressure.

Further preferably, a plurality of said hollow elastic bodies adapted to different inner diameter sizes of pipes are alternatively connected to said first pipe.

Among this technical scheme, the accessible is changed different cavity elastomers and is realized the leak hunting of different internal diameter size's pipeline, has practiced thrift use cost greatly, carries the leak hunting test of a this system alright realization a plurality of different pipe diameters's pipeline, has improved the utility model discloses an application scope and practicality.

Further preferably, the hollow elastic body comprises two end plates which are spaced along the length direction of the pipeline and are arranged oppositely, and elastic bodies which are respectively connected with the outer side walls of the two end plates in a sealing mode.

Among this technical scheme, the position that the cavity elastomer can take place deformation only is the elastomer of the inside wall contact of needs with the pipeline to guaranteed that the elastomer only can follow the radial direction inflation of pipeline when taking place deformation, accelerated the speed of the inside wall of cavity elastomer laminating pipeline, improved the utility model discloses a work efficiency.

Further preferably, the elastomer is a single layer structure or a multilayer structure.

In the technical scheme, the elastomer can be arranged into a single layer or multiple layers according to requirements, so that the diversification of the product is realized.

Further preferably, the distance between the two hollow elastic bodies is adjustable.

Among this technical scheme, satisfied the detection demand of the pipeline of different length, further improved the utility model discloses an application scope and application range.

Further preferably, the second pipeline penetrates through one of the hollow elastic bodies and then is communicated with the sealed space, and the outer side wall of the second pipeline is connected with the hollow elastic body in a sealing mode.

Among this technical scheme, one of them cavity elastomer is worn to establish by the second pipeline to further reduced the utility model discloses a space occupancy makes the utility model discloses it changes in carrying.

Further preferably, the first line is provided with a pressure control valve.

Among this technical scheme, the control valve has realized the control of pressure medium delivery volume, improves the utility model discloses the stability and the security of operation.

Further preferably, the exhaust valve is further included, and the exhaust valve is arranged on the hollow elastic body or the first pipeline.

In the technical scheme, the emptying valve can discharge the pressure medium in the hollow elastic body, so that the expanded hollow elastic body can be restored to the original shape, the hollow elastic body is convenient to take and place in a pipeline, the hollow elastic body is not required to be taken down in an expansion state in the pipeline, the abrasion of the hollow elastic body when the pipeline is taken down is reduced, and the service life of the hollow elastic body is prolonged.

Further preferably, the second line is provided with a pressure control valve.

Further preferably, the device further comprises an air release valve, and the air release valve is arranged on the second pipeline.

Among this technical scheme, the open valve can emit the pressure medium in the confined space to the cavity elastomer of having avoided discharge pressure medium pops out the pipeline owing to the effect of confined space pressure, avoids the accidental injury staff, also avoids two cavity elastomers of intercommunication to break off because of the motion of keeping away from each other simultaneously, leads to the unable use of this system, consequently, has improved the utility model discloses the stability and the security of operation.

The utility model provides a pair of pipeline pressurization leak hunting system can bring following at least one beneficial effect:

1. in the utility model, the first pipeline is only communicated with one of the hollow elastic bodies; meanwhile, the pressure gauge can represent whether the hollow elastic body is attached to the inner wall of the pipeline or not, and can represent whether the hollow elastic body is attached to the inner wall of the pipeline all the time, so that the pressure stabilizing condition of the hollow elastic body is represented; preferably, the sealing space and the pressure medium filled in the hollow elastomer are the same, so that the medium pipeline of the utility model is simplified; preferably, the arrangement of the pressure gauge enables a worker to avoid observing and judging whether the hollow elastic body is attached to the pipeline by human eyes, so that the phenomenon that the hollow elastic body is not attached to the inner side wall of the pipeline to cause distortion of pipeline leakage detection or the phenomenon that the hollow elastic body influences the service life of the hollow elastic body due to transitional expansion or directly bursts and the like is avoided, and the scientificity and the accuracy of pipeline leakage detection and the use safety are improved due to the arrangement of the pressure gauge; thereby whether leak hunting result is accurate and scientific through the pressure quick judgement pipeline of manometer detection seal space's pressure.

2. In the utility model, the leak detection of pipelines with different inner diameter sizes can be realized by replacing different hollow elastic bodies, thereby greatly saving the use cost, and the leak detection test of pipelines with different pipe diameters can be realized by carrying one system; the distance between two cavity elastomers is adjustable, has satisfied the detection demand of the pipeline of different length, makes the utility model is suitable for a pipeline of different length, different internal diameter size has improved greatly the utility model discloses an application scope and application range.

3. The utility model discloses in, the setting of atmospheric valve and control valve has further improved the utility model discloses an operating stability and security.

Drawings

The above features, technical features, advantages and modes of operation of a pressurized leak detection system for pipes are further described in the following detailed description of preferred embodiments in a clearly understandable manner, in conjunction with the accompanying drawings.

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

The reference numbers illustrate:

1. the pipeline pressure control device comprises a medium pipeline, 11, a first pipeline, 12, a second pipeline, 2, a hollow elastic body, 21, an end plate, 22, an elastic body, 23, a wire body, 24, a mounting piece, 25, a telescopic pipe, 261, a first through pipe, 262, a second through pipe, 263, a third through pipe, 264, a fourth through pipe, 3, a pressure gauge, 4, a pipeline, 41, a sealed space and 5, a pressure control valve. 6. And (4) an emptying valve.

Detailed Description

In order to more clearly illustrate embodiments of the present invention or technical solutions in the prior art, specific embodiments of the present invention will be described below with reference to the accompanying drawings. It is obvious that the drawings in the following description are only examples of the invention, and that for a person skilled in the art, other drawings and embodiments can be obtained from these drawings without inventive effort.

For the sake of simplicity, the drawings only schematically show the parts relevant to the present invention, and they do not represent the actual structure of the product. In addition, in order to make the drawings concise and understandable, components having the same structure or function in some of the drawings are only schematically illustrated or only labeled. In this document, "one" means not only "only one" but also a case of "more than one".

In this context, it is to be understood that, unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

The utility model discloses in, as shown in fig. 1, a pipeline pressurization leak hunting system includes: a medium line 1 for conveying a pressure medium; two hollow elastic bodies 2 communicating with each other; the medium pipeline 1 comprises a first pipeline 11 communicated with the hollow elastic body 2 and a second pipeline 12 arranged in parallel with the first pipeline 11; the first pipeline 11 is provided with a pressure gauge 3, and the second pipeline 12 is provided with a pressure gauge 3; when the two hollow elastic bodies 2 are respectively arranged at two ends of the internal channel of the pipeline 4, the first pipeline 11 is used for filling pressure medium into the hollow elastic bodies 2, the side walls of the hollow elastic bodies 2 are pressed and expanded along the radial direction of the pipeline 4 to be attached to the inner side wall of the pipeline 4, so that the internal channel between the two hollow elastic bodies 2 forms a sealed space 41, and the second pipeline 12 is communicated with the sealed space 41. In practical application, when the pipeline 4 needs to be subjected to leak detection operation, only two hollow elastic bodies 2 which are communicated with each other need to be accommodated in the inner spaces of the two ends of the pipeline 4 respectively, then, the hollow elastic body 2 is inflated by injecting a pressure medium into the hollow elastic body 2 through the first pipeline 11, by observing the pressure gauge 3 provided on the first pipe 11, when the value of the pressure gauge 3 is stable or fluctuates little, it is indicated that the inner wall of the pipe 4 is in sealing contact with the outer side wall of the hollow elastic body 2, and at this time, the inner channel of the pipe 4 directly located at two hollow elastic bodies 2 forms a sealed space 41, then, a pressure medium is charged into the sealed space 41 through the second pipe 12, and the pressure gauge 3 provided to the second pipe 12 is observed, when the numerical value of the pressure gauge 3 is stable or fluctuates little, the pipeline 4 is a leakage-free pipeline and is regarded as a qualified product; when the value of the pressure gauge 3 fluctuates all the time and cannot be stabilized all the time, the pipeline 4 is a leakage pipeline and is regarded as an unqualified product. It is worth explaining, the utility model discloses whether leak hunting in order to decide pipeline 4 can get into market when both being applicable to pipeline 4 production, also be applicable to pipeline 4 and leak hunting in order to decide whether need to change pipeline 4 under the user state, avoid the fluidic leakage in pipeline 4.

It is further preferred that a plurality of hollow elastic bodies 2 adapted to pipes 4 of different inner diameter sizes are replaceably connected to the first piping 11. Leak hunting through changing cavity elastomer 2 in order to realize the different pipeline 4 of multiple internal diameter size, improved the utility model discloses a use probability practices thrift the cost. Preferably, a pair of hollow elastic bodies 2 can be adapted to pipes 4 of different inner diameter sizes. In order to facilitate the taking and placing of the hollow elastic body 2 in the inner channel of the pipe 4, the outer diameter of the hollow elastic body 2 along the radial direction of the pipe 4 is preferably smaller than the inner diameter of the pipe 4, so that the hollow elastic body 2 can be applied to more than one pipe 4 with inner diameter according to the elastic performance of the hollow elastic body 2, if the deformation capacity of the hollow elastic body 2 is larger, the hollow elastic body 2 is applied to more pipes 4 with different inner diameter, and if the deformation capacity of the hollow elastic body 2 is smaller, the hollow elastic body 2 is applied to fewer pipes 4 with different inner diameter. Preferably, the hollow elastic body 2 includes two end plates 21 spaced apart and oppositely disposed along the length direction of the pipe 4, and elastic bodies 22 respectively sealingly connected to outer side walls of the two end plates 21. Specifically, the elastic body 22 may be disposed between the two end plates 21, the outer wall surfaces of the two end plates 21 (i.e., the elastic body 22 wraps the outer side walls of the end plates 21), or the elastic body 22 wraps the outer sides of the two end plates 21. Preferably, the elastic body 22 may have a single-layer structure or a multi-layer structure, and in practical applications, the elastic body 22 may be a single-layer hose or a multi-layer hose, or may be a rubber skin having elastic properties, so that the elastic body 22 and the two end plates 21 together enclose the hollow elastic body 2. The setting of end plate 21 makes the expanded direction of hollow elastomer 2 mainly be the radial direction of pipeline 4 for hollow elastomer 2 is changeed in the sealed laminating of the inner wall that realizes hollow elastomer 2 and pipeline 4 in the inflation process, thereby has guaranteed the reliability and the authenticity of leak hunting. Preferably, the end plate 21 is detachably connected to the elastic body 22, for example, when the elastic body is a hose, the radial dimension of the end plate 21 is larger than the inner diameter dimension of the elastic body 22, so that the elastic body 22 is ensured to be replaceably installed with the end plate 21 having different radial dimensions, and replacement installation of the hollow elastic body 2 suitable for the pipes 4 having different inner diameter dimensions is further realized. Of course, the entire hollow elastic body 2 may be directly replaced.

Further preferably, the distance between the two hollow elastic bodies 2 is adjustable. The distance between the two hollow elastic bodies 2 is preferably adjustable through a wire body 23, wherein one side of one hollow elastic body 2 close to the other hollow elastic body 2 is respectively provided with a mounting piece 24, and the distance between the two hollow elastic bodies 2 can be adjusted by directly fastening or loosening two ends of the wire body 23 after the wire body passes through the two cases respectively; of course, the connection and disconnection of the two ends of the wire 23 may be realized by other parts such as a buckle. The thread body 23 may be a thread body with elastic property, such as a rubber band or a rubber strip, or a thread body without elastic property, such as a cloth strip or a rope. In practical application, after the distance between the two hollow elastic bodies 2 is adjusted according to the length of the pipeline 4 needing to be subjected to leak detection, the hollow elastic bodies 2 are accommodated in the inner channel of the pipeline 4. Preferably, the second pipeline 12 penetrates one of the hollow elastic bodies 2 and then is communicated with the sealed space 41, and the outer side wall of the second pipeline 12 is connected with the hollow elastic body 2 in a sealing manner. Preferably, the first pipeline 11 is respectively communicated with the two hollow elastic bodies 2, preferably, the two hollow elastic bodies 2 are communicated through a telescopic pipe 25, and the telescopic pipe 25 can be a hose or a folding pipe. Preferably, the pipeline contacting with the hollow elastic body 2 is a hard pipeline, wherein the hollow elastic body 2 close to the pressure gauge 3 side is connected through a third pipe 263, the hollow elastic body 2 far away from the pressure gauge 3 side is connected through a second pipe 262, and since the pipeline of the hollow elastic body 2 far away from the pressure gauge 3 side needs to penetrate through the hollow elastic body 2 close to the pressure gauge 3 side and then is connected with the hollow elastic body 2 far away from the pressure gauge 3 side, the pipeline penetrating through the hollow elastic body 2 close to the pressure gauge 3 side is a first pipe 261, and the pipeline penetrating through the hollow elastic body 2 and then communicating with the sealed space 41 is a fourth pipe 264; the first through pipe 261, the second through pipe 262, the third through pipe 263, and the fourth through pipe 264 are all hard pipes, and the pipe provided in the two hollow elastic bodies 2 to communicate them is preferably a hose.

Further preferably, the first line 11 is provided with a pressure control valve 5. In practical application, when the pressure gauge 3 on the first pipeline 11 is stable or fluctuates slightly, the pressure control valve 5 can be closed to stop introducing the pressure medium, so that the stability of the internal pressure of the hollow elastic body 2 is ensured, the sealing and fitting between the hollow elastic body and the inner wall of the pipeline 4 is realized and ensured, meanwhile, whether the hollow elastic body 2 leaks or not can be ensured by observing the pressure gauge 3, the usability of the hollow elastic body 2 is ensured, and the sealing performance of the sealed space 41 is ensured (the situation that the sealed space 41 cannot realize sealing due to the air leakage of the hollow elastic body 2 is avoided). Preferably, the air release valve 6 is further included, and the air release valve 6 is arranged on the hollow elastic body 2 or the first pipeline 11. Because the sealed laminating in the inner wall of pipeline 4 after the inflation of cavity elastomer 2, cavity elastomer 2 under the inflation state is difficult for pipeline 4 to take off, consequently, discharges the pressure medium of the inside of cavity elastomer 2 through atmospheric valve 6 and makes cavity elastomer 2 reconversion, and then realizes getting of cavity elastomer 2 and put the convenience. Preferably, the second line 12 is provided with a pressure control valve 5. The pressure control valve 5 realizes the letting in or stopping of pressure medium, guarantees the utility model discloses the stability of operation. Preferably, still include atmospheric valve 6, atmospheric valve 6 locates second pipeline 12, when confined space 41 is full of pressure medium, can pop out pipeline 4 under confined space 41's pressure medium's effect after the pressure medium of the inside of hollow elastomer 2 is discharged, because the opposite direction of two hollow elastomer 2 movements, lead to the line body 23 or the flexible pipe 25 between two hollow elastomer 2 to snap easily, behind the pressure medium of confined space 41 through atmospheric valve 6 discharge, the pressure medium of the inside of hollow elastomer 2 of discharging again, guaranteed like this the utility model discloses the security of operation. Preferably, the pipeline provided with the evacuation valve, the first through pipe 261 and the third through pipe 263 are connected in parallel, and the pressure gauge 3 and the pressure control valve 5 are arranged on the pipeline between the connecting point of the pipeline of the evacuation valve, the first through pipe 261 and the third through pipe 263 and the device for providing the pressure medium; the fourth pipe 264 is connected in parallel with a pipeline provided with an emptying valve 6, and the pressure gauge 3 and the pressure control valve 5 are arranged on a pipeline between a connecting point of the fourth pipe 264 and the pipeline provided with the emptying valve 6 and a device for providing pressure medium; and the pressure gauges 3 are all arranged close to the hollow elastic body 2. In practical applications, the pressure medium may be a gas or a liquid, and the pressure medium may also be a colored fluid or a scented fluid. The device for providing the pressure medium can be a part of the utility model, and when the pressure medium in the device for providing the pressure medium is the pressure medium, a pump body is not required to be arranged; when the pressure medium in the device for providing the pressure medium is the non-pressure medium, the pipe pump body can be communicated with the pressure medium to provide the conveying power of the pressure medium.

It should be noted that the above embodiments can be freely combined as necessary. 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 system for leak detection by pressurizing a pipeline, comprising:

a medium line for conveying a pressure medium;

two hollow elastic bodies which are communicated with each other;

2. The line pressurizing leak detection system according to claim 1, wherein:

a plurality of said hollow elastomer bodies adapted for use with conduits of different inner diameter sizes may be alternatively connected to said first conduit.

3. The line pressurizing leak detection system according to claim 1, wherein:

the hollow elastic body comprises two end plates which are arranged oppositely and spaced along the length direction of the pipeline, and elastic bodies which are respectively connected with the outer side walls of the two end plates in a sealing mode.

4. The line pressurizing leak detection system according to claim 3, wherein:

the elastomer is of a single-layer structure or a multi-layer structure.

5. The line pressurizing leak detection system according to claim 1, wherein:

the distance between the two hollow elastic bodies is adjustable.

6. The line pressurizing leak detection system according to claim 1, wherein:

the second pipeline penetrates through one of the hollow elastic bodies and then is communicated with the sealed space, and the outer side wall of the second pipeline is connected with the hollow elastic body in a sealing mode.

7. The line pressurizing leak detection system according to any one of claims 1-6, wherein:

the first pipeline is provided with a pressure control valve.

8. The line pressure leak detection system according to any of claims 1-6, further comprising:

and the emptying valve is arranged on the hollow elastic body or the first pipeline.

9. The line pressurizing leak detection system according to any one of claims 1-6, wherein:

the second pipeline is provided with a pressure control valve.

10. The line pressure leak detection system according to any of claims 1-6, further comprising:

and the emptying valve is arranged on the second pipeline.