CN212029170U

CN212029170U - Pipeline leakage detection equipment

Info

Publication number: CN212029170U
Application number: CN201922209493.0U
Authority: CN
Inventors: 黄显平
Original assignee: Zhuhai Kangan Technology Engineering Co ltd
Current assignee: Zhuhai Kangan Technology Engineering Co ltd
Priority date: 2019-12-11
Filing date: 2019-12-11
Publication date: 2020-11-27
Anticipated expiration: 2029-12-11

Abstract

The utility model discloses a pipeline leakage detection equipment relates to the pipeline detection field. This pipeline leakage detection equipment is including the pipeline that awaits measuring, lower gland packing, go up the gland packing, coupling nut sealing hose, gaseous collection instrument and aspiration pump, the outer wall top fixedly connected with lower sealing strip of lower gland packing, the outer wall bottom fixedly connected with upper sealing strip of last gland packing, the pipeline fixed mounting that awaits measuring is between lower sealing strip and upper sealing strip, be provided with first joint table on the lower gland packing, the top of first joint table is provided with the threaded rod, be provided with the second on the last gland packing, the connecting hole has been seted up to the second joint table, pass through the threaded rod between lower gland packing and the last gland packing, connecting hole and coupling nut fixed mounting, the mounting hole has been seted up on the last gland packing, fixedly connected with sealing hose in the mounting hole, gaseous collection instrument and aspiration pump and sealing hose fixed connection. The pipeline leakage detection device.

Description

Pipeline leakage detection equipment

Technical Field

The utility model relates to a pipeline detection technology field specifically is a pipeline leakage check out test set.

Background

Pipelines are particularly widely applied nowadays, such as oil conveying pipelines, natural gas conveying pipelines and the like, and the pipelines can be damaged to cause leakage of substances in the pipelines under long-term use, so that a pipeline leakage detection device is needed.

Present pipeline leakage detection equipment exists following not enough, generally only leak detection to the junction of two sections pipelines to the pipeline of carrying the natural gas, but the leakage of pipeline not only takes place in the junction of two sections pipelines, still probably produce the crack on the pipe wall of single section pipeline and the pipeline that causes reveals, consequently need carry out leak detection to the pipe wall of pipeline, and the partial current pipeline leak detection can't leak detection to the pipe wall of single section pipeline, to prior art's not enough, the utility model discloses a pipeline leak detection equipment to solve above-mentioned problem.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

Not enough to prior art, the utility model discloses a pipeline leakage detection equipment to solve the problem that proposes among the above-mentioned background art.

(II) technical scheme

In order to achieve the above purpose, the utility model discloses a following technical scheme realizes: a pipeline leakage detection device comprises a pipeline to be detected, a lower sealing pipe, an upper sealing pipe, a connecting nut sealing hose, a gas collection instrument and an air pump, wherein the top of the outer wall of the lower sealing pipe is fixedly connected with a lower sealing strip, the bottom of the outer wall of the upper sealing pipe is fixedly connected with an upper sealing strip, the pipeline to be detected is fixedly installed between the lower sealing strip and the upper sealing strip, the round surface of the lower sealing pipe is provided with two first connecting tables, the tops of the two first connecting tables are respectively provided with a threaded rod, the round surface of the upper sealing pipe is provided with two second connecting tables, the two second connecting tables are respectively provided with a connecting hole, the lower sealing pipe and the upper sealing pipe are fixedly installed through the threaded rod, the connecting hole and the connecting nut, the round surface of the upper sealing pipe is provided with two mounting holes, and the two mounting holes are respectively and fixedly connected with the sealing hose, the gas collecting instrument is fixedly connected with one sealing hose, and the air pump is fixedly connected with the other sealing hose.

Preferably, the lower sealing pipe is a semicircular hollow cylinder, the bottom of the lower sealing strip is in contact with the top of the outer wall of the lower sealing pipe, and the top of the lower sealing strip is in contact with the outer surface of the pipeline to be tested.

Preferably, the upper sealing pipe is a semicircular hollow cylinder, the top of the upper sealing strip is in contact with the bottom of the outer wall of the upper sealing pipe, and the bottom of the upper sealing strip is in contact with the outer surface of the pipeline to be tested.

Preferably, when the top of the lower sealing strip contacts with the outer surface of the pipeline to be tested and the bottom of the upper sealing strip contacts with the outer surface of the pipeline to be tested, the top of the lower sealing strip is abutted against the bottom of the upper sealing strip.

Preferably, two first connecting tables are symmetrically distributed about the axis of the lower sealing pipe, and both first connecting tables are in contact with the top of the outer wall of the lower sealing pipe.

Preferably, the two connecting holes are symmetrically distributed about the axis of the upper sealing pipe, and both the two connecting holes are in contact with the top of the outer wall of the upper sealing pipe.

Preferably, the mounting hole is in contact with the outer wall of the sealing hose, the bottom of the gas collection instrument is provided with a collection probe in contact with the inner wall of the sealing hose, and the bottom of the air pump is provided with an air suction pipe in contact with the inner wall of the sealing hose.

The utility model discloses a pipeline leakage detection equipment, its beneficial effect who possesses as follows:

1. this pipeline leak testing equipment is through setting up down the sealed tube, go up the sealed tube, gaseous collection instrument and aspiration pump etc for the pipeline that awaits measuring and down can produce the cavity between sealed tube and the last sealed tube, the air pump extracts the gas in the cavity, make the cavity become the vacuum, gaseous collection instrument is gathering the gas in the vacuum cavity, if gaseous collection instrument detects the natural gas in the vacuum cavity, then explain that the pipe wall of this section pipeline has produced the crack and cause the pipeline to reveal, the device has the pipe wall that can carry out leak testing's function to single section pipeline.

2. This pipeline leakage detection equipment is through setting up bottom sealing strip, upper sealing strip and sealing hose etc for the device can prevent when using that external and cavity from producing gas exchange through the gap between bottom seal pipe and the upper seal pipe, can avoid external and cavity to produce gas exchange through gas acquisition instrument and aspiration pump installation department again, makes the device have can be to the pipeline that awaits measuring and the cavity between bottom seal pipe and the upper seal pipe totally enclosed's function.

Drawings

FIG. 1 is a schematic structural view of the present invention;

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

FIG. 3 is a side sectional view of the present invention;

FIG. 4 is a front sectional view of the present invention;

FIG. 5 is a schematic view of the structure of the lower sealing tube of the present invention;

fig. 6 is a schematic view of the lower sealing tube structure of the present invention.

In the figure: the device comprises a pipeline to be tested 1, a lower sealing pipe 2, a lower sealing strip 201, a first 202 connecting table, a 203 threaded rod, an upper sealing pipe 3, an upper sealing strip 301, a second 302 connecting table, a 303 connecting hole, a 304 mounting hole, a 4 connecting nut, a 5 sealing hose, a 6 gas collecting instrument, a 601 collecting probe, a 7 air pump and a 701 air extracting pipe.

Detailed Description

The embodiment of the utility model provides a pipeline leakage detection equipment, as shown in fig. 1-6, including pipeline 1 that awaits measuring, lower gland 2, go up gland 3, coupling nut 4 sealing hose 5, gas acquisition instrument 6 and aspiration pump 7, the outer wall top fixedly connected with lower sealing strip 201 of lower gland 2, lower gland 2 is semicircle empty cylinder, the bottom of lower gland 201 contacts with the outer wall top of lower gland 2, the outer wall bottom fixedly connected with upper sealing strip 301 of going up gland 3, it is semicircle empty cylinder to go up gland 3, the top of upper sealing strip 301 contacts with the outer wall bottom of last gland 3, the top of lower sealing strip 201 contacts with the surface of pipeline 1 that awaits measuring, the bottom of upper sealing strip 301 contacts with the surface of pipeline 1 that awaits measuring, pipeline 1 fixed mounting that awaits measuring is between lower sealing strip 201 and upper sealing strip 301, the top of lower sealing strip 201 contacts with the surface of pipeline 1 that awaits measuring and the bottom of upper sealing strip 301 contacts with the surface of pipeline 1 that awaits measuring and the When the surface of saying 1 contacts, the top of lower sealing strip 201 offsets with the bottom of upper sealing strip 301, can make the pipeline 1 that awaits measuring and form the cavity between lower sealing tube 2 and the upper sealing tube 3 like this, and lower sealing strip 201 and upper sealing strip 301 are for having certain elastic rubber material, through lower sealing strip 201 and upper sealing strip 301 in close contact with, can prevent that cavity and external production gas from exchanging.

The device is through setting up sealing strip 201 down, upper sealing strip 301 and sealing hose 5 etc for the device can prevent when using that external and cavity from producing gaseous exchange through the gap between lower gland 2 and the last gland 3, can avoid external and cavity to produce gaseous exchange through gaseous collection instrument 6 and aspiration pump 7 installation department again, makes the device have can be to the pipeline 1 that awaits measuring and the cavity between lower gland 2 and the last gland 3 totally enclosed's function.

The round surface of the upper sealing tube 3 is provided with two mounting holes 304, the two mounting holes 304 are both fixedly connected with a sealing hose 5, the mounting holes 304 are contacted with the outer wall of the sealing hose 5, the gas collecting instrument 6 is fixedly connected with one sealing hose 5, the bottom of the gas collecting instrument 6 is provided with a collecting probe 601 contacted with the inner wall of the sealing hose 5, the gas collecting instrument 6 is model AS8700A, can collect the concentration of gas such AS natural gas and then display the gas concentration in the detection area, the air pump 7 is fixedly connected with another sealing hose 5, the bottom of the air pump 7 is provided with an air pumping pipe 701 contacting with the inner wall of the sealing hose 5, this aspiration pump 7 model is 65938A, and the work through aspiration pump 7 can extract the gas in the cavity, and sealing hose 5 is for having certain elastic rubber material, prevents that cavity and external installation department through gas acquisition instrument 6 and aspiration pump 7 from producing gas exchange.

The device is through setting up down sealed tube 2, go up sealed tube 3, gaseous collection instrument 6 and aspiration pump 7 etc, make pipeline 1 that awaits measuring and sealed tube 2 and last sealed tube 3 between can produce the cavity down, the gas in the aspiration pump 7 extraction cavity, make the cavity become the vacuum, gaseous collection instrument 6 is gathering the gas in the vacuum cavity, if gaseous collection instrument 6 detects the natural gas in the vacuum cavity, then explain that the pipe wall of this section pipeline has produced the crack and cause the pipeline to reveal, the device has the function that can carry out leak detection to the pipe wall of single section pipeline.

The round surface of the lower sealing tube 2 is provided with two first connecting platforms 202, the two first connecting platforms 202 are symmetrically distributed about the axis of the lower sealing tube 2, the two first connecting platforms 202 are connected with the top of the outer wall of the lower sealing tube 2, the tops of the two first connecting platforms 202 are provided with threaded rods 203, the round surface of the upper sealing tube 3 is provided with two second connecting platforms 302, the two connecting holes 303 are symmetrically distributed about the axis of the upper sealing tube 3, the two second connecting platforms 302 are provided with connecting holes 303, the two connecting holes 303 are contacted with the top of the outer wall of the upper sealing tube 3, when the device is installed, the threaded rod 203 of the first connection stage 202 is inserted through the connection hole 303 of the second connection stage 302, and the connection nut 4 is screwed into the connection hole 303, so that the lower sealing pipe 2 and the upper sealing pipe 3 are fixedly installed through the threaded rod 203, the connecting hole 303 and the connecting nut 4.

In summary, the following steps: the pipeline leakage detection equipment has the advantages that through the arrangement of the lower sealing pipe 2, the upper sealing pipe 3, the gas collection instrument 6, the air pump 7 and the like, a cavity can be formed between the pipeline 1 to be detected and the lower sealing pipe 2 and the upper sealing pipe 3, the air pump 7 can be used for pumping gas in the cavity to enable the cavity to be vacuum, the gas collection instrument 6 is used for collecting gas in the vacuum cavity, if the gas collection instrument 6 detects natural gas in the vacuum cavity, the pipeline leakage caused by cracks generated on the pipe wall of the pipeline is indicated, the device has the function of detecting leakage of the pipe wall of a single-section pipeline, through the arrangement of the lower sealing strip 201, the upper sealing strip 301, the sealing hose 5 and the like, the device can be used for preventing gas exchange between the outside and the cavity through a gap between the lower sealing pipe 2 and the upper sealing pipe 3, and also can be prevented from being generated at the installation position of the gas collection instrument 6 and the air pump 7, so that the device has the function of completely sealing the cavity between the pipeline 1 to be tested and the lower sealing pipe 2 and the upper sealing pipe 3.

The working principle is as follows: when the user uses the device, fix the below at the pipeline 1 that awaits measuring with lower seal pipe 2 fixed connection's lower sealing strip 201 earlier, again will fix the top seal 301 at the pipeline 1 that awaits measuring with top seal pipe 3 fixed connection, the threaded rod 203 that sets up on lower sealing strip 201 and top seal 301 counterbalance and the first linking platform 202 at this moment passes the connecting hole 303 of seting up on the second linking platform 302, again with connecting nut 4 threaded mounting on threaded rod 203, can make lower seal pipe 2, lower sealing strip 201, top seal pipe 3 and top seal 301 are with the pipeline 1 that awaits measuring completely, and make and await measuring between pipeline 1 and lower seal pipe 2 and the top seal pipe 3 vacuole formation, because lower sealing strip 201 and top seal 301 sealing effect, make the cavity and the external unable gas exchange that produces.

Then, the air pump 7 is started firstly, so that the air around the pipeline to be detected 1 is pumped away through the air pumping pipe 701, a cavity between the pipeline to be detected 1 and the lower sealing pipe 2 and the upper sealing pipe 3 is vacuum, finally, the air collecting instrument 6 is started, so that the collecting probe 601 collects the air in the vacuum cavity, if a crack exists on the pipeline to be detected 1, so that the natural gas in the pipeline to be detected 1 is leaked, the collecting probe 601 can collect the natural gas and then generate a signal, and the fact that the pipeline is leaked is shown.

The basic principles and the main features of the invention and the advantages of the invention have been shown and described above. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a pipeline leak testing equipment, includes pipeline (1) that awaits measuring, lower gland (2), goes up gland (3), coupling nut (4) seal hose (5), gas acquisition instrument (6) and aspiration pump (7), its characterized in that: the top of the outer wall of the lower sealing pipe (2) is fixedly connected with a lower sealing strip (201), the bottom of the outer wall of the upper sealing pipe (3) is fixedly connected with an upper sealing strip (301), and the pipeline (1) to be tested is fixedly arranged between the lower sealing strip (201) and the upper sealing strip (301);

the round surface of lower sealed tube (2) is provided with two first connection platforms (202), two the top of first connection platform (202) all is provided with threaded rod (203), the round surface of going up sealed tube (3) is provided with two seconds and links platform (302), two connecting hole (303) have all been seted up to second connection platform (302), down sealed tube (2) and go up between sealed tube (3) through threaded rod (203), connecting hole (303) and connecting nut (4) fixed mounting, the round surface of going up sealed tube (3) has seted up two mounting holes (304), two equal fixedly connected with seal hose (5) in mounting hole (304), gas acquisition instrument (6) and a seal hose (5) fixed connection, aspiration pump (7) and another seal hose (5) fixed connection.

2. The apparatus according to claim 1, wherein: lower sealed tube (2) are semicircle hollow cylinder, the bottom of lower sealing strip (201) contacts with the outer wall top of lower sealed tube (2), the top of lower sealing strip (201) contacts with the surface of pipeline (1) that awaits measuring.

3. The apparatus according to claim 1, wherein: go up sealed tube (3) and be the semicircle hollow cylinder, the top of going up sealing strip (301) contacts with the outer wall bottom of last sealed tube (3), the bottom of going up sealing strip (301) contacts with the surface of the pipeline (1) that awaits measuring.

4. The apparatus according to claim 2, wherein: the top of bottom sealing strip (201) contacts with the surface of the pipeline (1) that awaits measuring and when the bottom of top sealing strip (301) contacts with the surface of the pipeline (1) that awaits measuring, the top of bottom sealing strip (201) offsets with the bottom of top sealing strip (301).

5. The apparatus according to claim 1, wherein: the two first connecting tables (202) are symmetrically distributed about the axis of the lower sealing pipe (2), and the two first connecting tables (202) are in contact with the top of the outer wall of the lower sealing pipe (2).

6. The apparatus according to claim 1, wherein: the two connecting holes (303) are symmetrically distributed about the axis of the upper sealing pipe (3), and the two connecting holes (303) are in contact with the top of the outer wall of the upper sealing pipe (3).

7. The apparatus according to claim 1, wherein: the mounting hole (304) contacts with the outer wall of the sealing hose (5), the bottom of the gas collection instrument (6) is provided with a collection probe (601) which contacts with the inner wall of the sealing hose (5), and the bottom of the air pump (7) is provided with an air suction pipe (701) which contacts with the inner wall of the sealing hose (5).