CN218671656U

CN218671656U - Device for detecting pipeline leakage

Info

Publication number: CN218671656U
Application number: CN202223413410.8U
Authority: CN
Inventors: 费张平; 姬辉辉; 马俊
Original assignee: Xuancheng Hengshuo Testing Technology Co ltd
Current assignee: Xuancheng Hengshuo Testing Technology Co ltd
Priority date: 2022-12-19
Filing date: 2022-12-19
Publication date: 2023-03-21
Anticipated expiration: 2032-12-19

Abstract

The utility model relates to a nondestructive test technical field, the utility model provides a device for pipeline leak testing, including positioning element, first elastic sealing element, the position sleeve, the gas-supply pipe, second elastic sealing element, third elastic sealing element, holding ring and the portion that compresses tightly, wherein, positioning element is by integrative solid tip that links to each other, trachea portion and hollow tip are constituteed, set up first through-hole on the pipe wall of trachea portion, first elastic sealing element, the position sleeve, third elastic sealing element and holding ring set up between positioning element outside solid tip and hollow tip with the axle center in proper order, set up the second through-hole on positioning sleeve's the section of thick bamboo wall, the gas-supply pipe link up hollow tip with the inboard of axle center setting at positioning element, the second sealing element sets up between gas-supply pipe inner outer wall and trachea portion inner wall, but compress tightly the outside of portion axial displacement ground assembly at hollow tip. The utility model discloses can improve pipeline prosthetic accuracy nature, efficiency and security.

Description

Device for detecting pipeline leakage

Technical Field

The utility model relates to a nondestructive test technical field especially relates to a device for pipeline leak testing.

Background

The pipeline is an important component of heat flow special equipment, and particularly in systems such as boilers and pressure vessels, the pipeline is a necessary carrier for realizing circulation and transmission of hot fluid. In order to maintain the safe operation of the heat flow special equipment, the whole system is usually checked and checked in a periodic detection mode, so that the risk item or the abnormal index can be timely remedied and repaired. Due to the operating characteristics of the heat flow special equipment, the repair work of the equipment has extremely high requirements on efficiency, and the equipment is generally required to be repaired without influencing the operation of the equipment system or at the cost of time as little as possible.

In practical application, when the pipeline in the pipeline leaks, the repair efficiency and the repair cost are comprehensively considered, the pipeline is repaired inside the pipeline and through welding, the repaired part needs to be detected after the repair is finished, whether the repaired part meets the operation requirement is verified, and the system which is stopped because of the repair work is restarted is used for verifying the repair work and has the following defects: 1. when the pipeline leakage still occurs to the repaired part due to the problems of assembly or welding and the like, the operation of the system needs to be closed again, so that the efficiency is low; 2. the system is restarted when whether the operation requirement is met or not by the uncertain repairing part, so that great potential safety hazards exist; 3. the heat fluid in the pipeline after the system is restarted can affect the welding tissue of the repair part, and the repair work in the early stage is damaged to a great extent.

Therefore, how to provide a more efficient and safe device for detecting pipeline leakage is an urgent problem to be solved.

SUMMERY OF THE UTILITY MODEL

In view of this, in order to overcome the deficiencies in the prior art, the present invention aims to provide a device for detecting pipeline leakage.

The utility model provides a device for pipeline leakage detection, including positioning element, first elastic sealing element, the position sleeve, the gas-supply pipe, second elastic sealing element, third elastic sealing element, the holding ring and the portion of compressing tightly, wherein, positioning element is by integrative solid tip that links to each other, trachea portion and hollow tip are constituteed, set up first through-hole on the pipe wall of trachea portion, first elastic element, the position sleeve, third elastic sealing element and holding ring set up between the solid tip in the positioning element outside and hollow tip with the axle center in proper order, set up the second through-hole on the section of thick bamboo wall of position sleeve, the gas-supply pipe link up hollow tip with the inboard that the axle center set up at positioning element, the second sealing element sets up between gas-supply pipe inner outer wall and trachea portion inner wall, but the portion of compressing tightly assembles the outside at hollow tip with axial displacement.

Further, the utility model is used for pipeline leak testing's device, solid tip is T shape.

Further, the utility model discloses a device for pipeline leak testing, first elastic sealing element's external diameter is greater than the outer tip external diameter of solid tip, and first elastic sealing element's internal bore diameter is less than the inner tip external diameter of solid tip.

Further, the utility model is used for pipeline leak testing's device, the both ends of positioning sleeve set up sleeve location portion, and the external diameter of sleeve location portion is less than the outer tip external diameter of solid tip.

Further, the utility model discloses a device for pipeline leak testing, the inboard that air duct portion is close to hollow tip one side sets up the seal groove, and the second sealing member sets up in the seal groove with the axle center.

Further, the utility model is used for pipeline leakage detection's device, second elastic sealing element's external diameter equals first elastic sealing element's external diameter, and second elastic sealing element's inner aperture is less than the external diameter of trachea portion.

Further, the utility model discloses a device for pipeline leak testing, the interior tip of hollow tip sets up external screw thread portion.

Further, the utility model discloses a device for pipeline leak testing, the interior tip inboard of portion that compresses tightly sets up the internal thread portion that matches with external screw thread portion.

Further, the utility model is used for pipeline leak testing's device, the external diameter of holding ring equals the external diameter of sleeve location portion, and the internal diameter of holding ring is greater than the external diameter of trachea portion.

The utility model is used for pipeline leak testing's device has following beneficial effect:

1. after the repair work is finished, the system does not need to be restarted, the repair part can be quickly detected, and the accuracy of pipeline repair is improved;

2. the method can avoid the problem that when the pipeline leakage still occurs to the repaired part due to the problems of assembly, welding and the like, the operation of the system is closed again, and the pipeline repairing efficiency is improved;

3. potential safety hazards caused by restarting the system when the operation requirement of the part which is not clearly repaired is met are eliminated, and the safety of pipeline repair is improved.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic structural view of the device for detecting pipeline leakage of the present invention.

Fig. 2 is a schematic view of the application principle of the device for detecting the leakage of the pipeline of the present invention.

In the figure, 001-solid end part, 002-airway tube part, 003-hollow end part, 004-first through hole, 005-sealing groove, 006-external thread part, 007-first elastic sealing part, 008-positioning sleeve, 009-second through hole, 010-sleeve positioning part, 011-airway tube, 012-second elastic sealing part, 013-third elastic sealing part, 014-positioning ring, 015-pressing part, 016-internal thread part, 017-pipeline and 018-inner lining tube.

Detailed Description

The embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

As shown in fig. 1, the device for detecting pipeline leakage of the present embodiment includes a positioning component, a first elastic seal 007, a positioning sleeve 008, an air pipe 011, a second elastic seal 012, a third elastic seal 013, a positioning ring 014, and a pressing portion 015.

Specifically, the locating part is by integrative solid tip 001 that links to each other, trachea portion 002 and hollow tip 003 are constituteed, set up first through-hole 004 on the pipe wall of trachea portion 002, first elastic sealing element 007, positioning sleeve 008, third elastic sealing element 013 and holding ring 014 set up between solid tip 001 in the locating part outside and hollow tip 003 with the axle center in proper order, set up second through-hole 009 on positioning sleeve 008's the section of thick bamboo wall, the gas-supply pipe 011 link up hollow tip 003 with the inboard of axle center setting at the locating part, second elastic sealing element 012 sets up between gas-supply pipe 011 inner outer wall and trachea portion 002 inner wall.

In order to realize the technical purpose of detecting the pipeline leakage of the device of the embodiment:

in the device of the present embodiment, the solid end 001 is T-shaped, the outer diameter of the first elastic sealing member 007 is larger than the outer diameter of the outer end of the solid end 001, and the inner diameter of the first elastic sealing member 007 is smaller than the outer diameter of the inner end of the solid end 001. The both ends of position sleeve 008 set up sleeve location portion 010, and the external diameter of sleeve location portion 010 is less than the outer tip external diameter of solid tip 001.

A seal groove 005 is provided inside the air duct section 002 on the side closer to the hollow end 003, and the second elastic packing 012 is coaxially provided in the seal groove 005. The outer diameter of the third elastic sealing member 013 is equal to the outer diameter of the first elastic sealing member 007, and the inner diameter of the third elastic sealing member 013 is smaller than the outer diameter of the airway tube portion 002. The outer diameter of the positioning ring 014 is equal to the outer diameter of the sleeve positioning portion 010, and the inner diameter of the positioning ring 014 is larger than the outer diameter of the airway tube portion 002.

The inner end of the hollow end 003 is provided with an externally threaded portion 006. An internal thread portion 016 matching with the external thread portion 006 is provided inside the inner end portion of the pressing portion 015. The pressing portion 015 is axially movably fitted to the outside of the hollow end portion 003.

The device for detecting pipeline leakage in the embodiment is suitable for picking up the leakage of the repaired pipeline, and the application principle is as follows:

as shown in fig. 2, when a pipe 017 in a pipeline is leaked, the pipe 017 is repaired while being welded by lining a pipe 018 inside the pipe 017, and when a leakage detection is performed on a repaired portion, the assembled device of the present embodiment of a corresponding specification is selected according to an inner diameter of the pipe 017 and a specification of the lining pipe 018, and is inserted into the pipe 017, wherein an axial length of a positioning sleeve 008 is equal to an axial length of the lining pipe 018, a first elastic seal 007 penetrates the lining pipe 018 under an external force due to elastic properties thereof at one end thereof, a third elastic seal 013 is located at the other end thereof, and a pressing portion 015 is rotated to sequentially press a positioning ring 014, a third elastic seal 013, the positioning sleeve 008 and the first elastic seal 018, and the first elastic seal 013 and the third elastic seal 013 are radially expanded under an axial pressure, thereby forming a space for gas introduction between both ends of the lining pipe 018; the gas of an external gas source (not shown) is input into the inner cavity of the air duct portion 002 through the air duct 011, and the second elastic sealing member 012 arranged between the outer wall of the inner end of the air duct 011 and the inner wall of the air duct portion 002 can prevent the input gas from reversely flowing out and leaking; the gas entering the inner cavity of the airway tube section 002 flows out through the first through hole 004 and the second through hole 009 to the space formed by the inner liner tube 018 and the first and third

elastic sealing members

007 and 013. After the gas is input, if the air pressure of the external gas source is kept stable, the repaired part has no leakage defect, and if the air pressure of the external gas source is changed in a short time, the repaired part has the leakage defect.

In practical applications, the apparatus for detecting pipeline leakage of the present embodiment has the following advantages:

2. the method can avoid that the operation of the system is closed again when the pipeline still leaks due to the problems of assembly, welding and the like of the repaired part, thereby improving the efficiency of pipeline repair;

The above description is only for the specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention should be covered by the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. The utility model provides a device for pipeline leak testing, a serial communication port, the device is including positioning element, first elastic sealing element, the position sleeve, the gas-supply pipe, second elastic sealing element, third elastic sealing element, holding ring and compress tightly the portion, wherein, positioning element is by integrative continuous solid tip, trachea portion and hollow tip are constituteed, set up first through-hole on the pipe wall of trachea portion, first elastic sealing element, the position sleeve, third elastic sealing element and holding ring set up between positioning element outside solid tip and hollow tip with the axle center in proper order, set up the second through-hole on the section of thick bamboo wall of position sleeve, the gas-supply pipe link up hollow tip and axle center setting in positioning element's inboard, the second sealing element sets up between gas-supply pipe inner outer wall and trachea portion inner wall, but compress tightly the portion assembles the outside at hollow tip axially moving.

2. The apparatus of claim 1, wherein the solid end portion is T-shaped.

3. The apparatus for pipeline leak detection as defined in claim 1, wherein the first resilient seal has an outer diameter greater than an outer diameter of an outer end portion of the solid end portion, and an inner bore diameter less than an outer diameter of an inner end portion of the solid end portion.

4. The apparatus of claim 1, wherein sleeve locating portions are provided at both ends of the locating sleeve, and an outer diameter of the sleeve locating portions is smaller than an outer end outer diameter of the solid end portion.

5. The apparatus for pipeline leak detection as set forth in claim 1, wherein a sealing groove is provided in an inner side of the air duct portion on a side close to the hollow end portion, and the second sealing member is coaxially disposed in the sealing groove.

6. The device for duct leak detection as defined in claim 1, wherein the second elastic sealing member has an outer diameter equal to that of the first elastic sealing member, and an inner diameter smaller than that of the airway tube.

7. The apparatus for pipe leak detection as defined in claim 1, wherein an inner end portion of the hollow end portion is provided with an external thread portion.

8. The apparatus for pipe leakage detection according to claim 7, wherein an internal thread portion matching the external thread portion is provided inside the inner end portion of the pressing portion.

9. The apparatus for pipe leak detection according to claim 1, wherein an outer diameter of the positioning ring is equal to an outer diameter of the sleeve positioning portion, and an inner diameter of the positioning ring is larger than an outer diameter of the air duct portion.