CN212029170U - A pipeline leak detection device - Google Patents

Abstract

The utility model discloses a pipeline leakage detection device, which relates to the field of pipeline detection. The pipeline leak detection equipment includes a pipeline to be tested, a lower sealing tube, an upper sealing tube, a connecting nut sealing hose, a gas collection instrument and an air pump. The top of the outer wall of the lower sealing tube is fixedly connected with a lower sealing strip, and the outer wall of the upper sealing tube is The bottom is fixedly connected with an upper sealing strip, the pipeline to be tested is fixedly installed between the lower sealing strip and the upper sealing strip, the lower sealing tube is provided with a first connection table, the top of the first connection table is provided with a threaded rod, and the upper sealing tube is provided with There is a second connection table, the second connection table is provided with a connection hole, the lower sealing pipe and the upper sealing pipe are fixed and installed by a threaded rod, a connection hole and a connection nut, and a mounting hole is opened on the upper sealing pipe, and the installation hole is fixed A sealing hose is connected, and the gas collection instrument is fixedly connected with the air pump and the sealing hose. The pipeline leak detection equipment.

Description

A pipeline leak detection device

technical field

The utility model relates to the technical field of pipeline detection, in particular to a pipeline leakage detection device.

Background technique

Pipelines are widely used today, such as oil pipelines and natural gas pipelines, and pipelines will be damaged after long-term use, resulting in leakage of materials in the pipeline. Therefore, a pipeline leak detection device is required.

Today's pipeline leak detection equipment has the following shortcomings. For natural gas pipelines, leak detection is generally only performed at the connection of two pipelines, but pipeline leakage not only occurs at the connection of two pipelines, but also may occur in a single segment. Pipeline leakage caused by cracks on the pipe wall of the pipeline, so it is necessary to perform leak detection on the pipe wall of the pipeline, and some existing pipeline leak detection cannot perform leak detection on the pipe wall of a single-section pipeline, aiming at the shortcomings of the existing technology. , The utility model discloses a pipeline leakage detection device to solve the above problems.

Utility model content

(1) Technical problems solved

Aiming at the deficiencies of the prior art, the utility model discloses a pipeline leak detection device to solve the problems raised in the above background technology.

(2) Technical solutions

In order to achieve the above purpose, the present utility model is achieved through the following technical solutions: a pipeline leak detection device includes a pipeline to be measured, a lower sealing tube, an upper sealing tube, a sealing hose connecting a nut, a gas collection instrument and an air pump, the A lower sealing strip is fixedly connected to the top of the outer wall of the lower sealing tube, and an upper sealing strip is fixedly connected to the bottom of the outer wall of the upper sealing tube. The pipeline to be tested is fixedly installed between the lower sealing strip and the upper sealing strip. The lower sealing tube Two first connection platforms are arranged on the circular surface of the upper sealing tube, threaded rods are arranged on the tops of the two first connection platforms, and two second connection platforms are arranged on the circular surface of the upper sealing tube. The second connecting platform is provided with a connecting hole, the lower sealing pipe and the upper sealing pipe are fixedly installed by a threaded rod, a connecting hole and a connecting nut, and two mounting holes are opened on the circular surface of the upper sealing pipe , the two installation holes are fixedly connected with a sealing hose, the gas collection instrument is fixedly connected with one sealing hose, and the air pump is fixedly connected with another sealing hose.

Preferably, the lower sealing tube is a semi-circular hollow cylinder, the bottom of the lower sealing strip is in contact with the top of the outer wall of the lower sealing tube, 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 tube is a semi-circular hollow cylinder, the top of the upper sealing strip is in contact with the bottom of the outer wall of the upper sealing tube, and the bottom of the upper sealing strip is in contact with the outer surface of the pipe to be tested.

Preferably, when the top of the lower sealing strip is in contact with the outer surface of the pipe to be tested and the bottom of the upper sealing strip is in contact with the outer surface of the pipe to be tested, the top of the lower sealing strip is in contact with the bottom of the upper sealing strip.

Preferably, the two first connection platforms are symmetrically distributed with respect to the axis of the lower sealing tube, and both of the two first connection platforms are in contact with the top of the outer wall of the lower sealing tube.

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

Preferably, the installation 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 that is in contact with the inner wall of the sealing hose, and the bottom of the air pump is provided with a collection probe that is in contact with the inner wall of the sealing hose contact with the exhaust pipe.

The utility model discloses a pipeline leak detection device, which has the following beneficial effects:

1. The pipeline leak detection equipment is equipped with a lower sealing tube, an upper sealing tube, a gas collection instrument and an air pump, etc., so that a cavity will be formed between the pipeline to be tested and the lower sealing tube and the upper sealing tube, and the air pump will extract the cavity. If the gas collection instrument detects natural gas in the vacuum cavity, it means that the pipe wall of this section of pipeline has been cracked, causing the pipeline to leak. , the device has the function of being able to perform leak detection on the pipe wall of a single-section pipe.

2. The pipeline leakage detection equipment is provided with a lower sealing strip, an upper sealing strip and a sealing hose, etc., so that the device can prevent gas exchange between the outside world and the cavity through the gap between the lower sealing tube and the upper sealing tube during use, and also The gas exchange between the outside world and the cavity can be avoided through the installation of the gas collection instrument and the air pump, so that the device has the function of completely sealing the cavity between the pipeline to be measured and the lower sealing tube and the upper sealing tube.

Description of drawings

Fig. 1 is the structural representation of the utility model;

Fig. 2 is the structure schematic diagram when the utility model is used;

Figure 3 is a side sectional view of the utility model;

Fig. 4 is the front sectional view of the utility model;

5 is a schematic structural diagram of the lower sealing tube of the present invention;

FIG. 6 is a schematic structural diagram of the lower sealing tube of the present invention.

In the picture: 1 Pipe to be tested, 2 lower sealing pipe, 201 lower sealing strip, 202 first connection table, 203 threaded rod, 3 upper sealing pipe, 301 upper sealing strip, 302 second connection table, 303 connecting hole, 304 installation Holes, 4 connecting nuts, 5 sealing hoses, 6 gas collection instruments, 601 collection probes, 7 air pumps, 701 air pipes.

Detailed ways

An embodiment of the present utility model provides a pipeline leak detection device, as shown in Figures 1-6, including a pipeline to be tested 1, a lower sealing tube 2, an upper sealing tube 3, a connecting nut 4, a sealing hose 5, and a gas collection instrument 6 With the air pump 7, a lower sealing strip 201 is fixedly connected to the top of the outer wall of the lower sealing tube 2, the lower sealing tube 2 is a semi-circular hollow cylinder, the bottom of the lower sealing strip 201 is in contact with the top of the outer wall of the lower sealing tube 2, and the upper sealing tube is in contact with the top of the outer wall of the lower sealing tube 2. The bottom of the outer wall of 3 is fixedly connected with an upper sealing strip 301, the upper sealing tube 3 is a semi-circular hollow cylinder, the top of the upper sealing strip 301 is in contact with the bottom of the outer wall of the upper sealing tube 3, and the top of the lower sealing strip 201 is in contact with the pipeline 1 to be tested. The outer surface of the upper sealing strip 301 is in contact with the outer surface of the pipeline 1 to be tested, the pipeline 1 to be tested is fixedly installed between the lower sealing strip 201 and the upper sealing strip 301, and the top of the lower sealing strip 201 is in contact with the pipeline 1 to be tested. When the outer surface of the upper sealing strip 301 is in contact with the outer surface of the pipe 1 to be tested, the top of the lower sealing strip 201 is in contact with the bottom of the upper sealing strip 301, so that the pipe to be tested 1 and the lower sealing pipe 2 and the A cavity is formed between the upper sealing tube 3, and the lower sealing strip 201 and the upper sealing strip 301 are made of rubber material with a certain elasticity. The close contact between the lower sealing strip 201 and the upper sealing strip 301 can prevent the cavity from being exchanged with the outside world. .

The device is provided with the lower sealing strip 201, the upper sealing strip 301 and the sealing hose 5, etc., so that the device can prevent gas exchange between the outside world and the cavity through the gap between the lower sealing tube 2 and the upper sealing tube 3 during use, and also The gas exchange between the outside world and the cavity can be avoided through the installation 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 to be measured 1 and the lower sealing tube 2 and the upper sealing tube 3 .

Two installation holes 304 are opened on the circular surface of the upper sealing tube 3, and the sealing hose 5 is fixedly connected to the two installation holes 304. The hose 5 is fixedly connected, and the bottom of the gas collection instrument 6 is provided with a collection probe 601 in contact with the inner wall of the sealed hose 5. The gas collection instrument 6 is model AS8700A, which can collect the concentration of gases such as natural gas and then display the gas in the detection area. Concentration, the air pump 7 is fixedly connected with another sealing hose 5, and the bottom of the air pump 7 is provided with an air extraction pipe 701 that is in contact with the inner wall of the sealing hose 5, and the air pump 7 model is 65938A, and the work of the air pump 7 can To extract the gas in the cavity, the sealing hose 5 is made of rubber material with certain elasticity to prevent gas exchange between the cavity and the outside through the installation of the gas collection instrument 6 and the air pump 7 .

The device is provided with the lower sealing strip 201, the upper sealing strip 301 and the sealing hose 5, etc., so that the device can prevent gas exchange between the outside world and the cavity through the gap between the lower sealing tube 2 and the upper sealing tube 3 during use, and also The gas exchange between the outside world and the cavity can be avoided through the installation 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 to be measured 1 and the lower sealing tube 2 and the upper sealing tube 3 .

By setting the lower sealing tube 2, the upper sealing tube 3, the gas collecting instrument 6, the air pump 7, etc., the device makes a cavity between the pipeline to be measured 1 and the lower sealing tube 2 and the upper sealing tube 3, and the air pump 7 extracts The gas in the cavity makes the cavity a vacuum, and the gas collection instrument 6 is collecting the gas in the vacuum cavity. If the gas collection instrument 6 detects natural gas in the vacuum cavity, it means that the pipe wall of this section of pipeline has been Cracks are generated to cause pipeline leakage, and the device has the function of performing leak detection on the pipe wall of a single-section pipeline.

Two first connection platforms 202 are arranged on the circular surface of the lower sealing tube 2 , and the two first connection platforms 202 are symmetrically distributed with respect to the axis of the lower sealing tube 2 . The tops are connected to each other, the tops of the two first connection platforms 202 are provided with threaded rods 203 , the circular surface of the upper sealing tube 3 is provided with two second connection platforms 302 , and the two connection holes 303 are related to the axis of the upper sealing tube 3 . Symmetrically distributed, the two second connecting stages 302 are both provided with connecting holes 303, and both connecting holes 303 are in contact with the top of the outer wall of the upper sealing tube 3. When the device is installed, the threaded rods 203 on the first connecting stage 202 will meet. Pass through the connecting hole 303 on the second connecting table 302, and then screw the connecting nut 4 to the connecting hole 303, so that the lower sealing tube 2 and the upper sealing tube 3 pass through the threaded rod 203, the connecting hole 303 and the connecting nut 4 fixed installation.

To sum up: the pipeline leakage detection equipment is provided with the lower sealing tube 2, the upper sealing tube 3, the gas collection instrument 6 and the air pump 7, etc., so that there is a A cavity is generated, the air pump 7 extracts the gas in the cavity, and the cavity becomes a vacuum. The gas collection instrument 6 is collecting the gas in the vacuum cavity. If the gas collection instrument 6 detects natural gas in the vacuum cavity, then It shows that the pipe wall of this section of pipeline has been cracked and caused pipeline leakage. The device has the function of being able to perform leak detection on the pipe wall of a single section of pipeline. Pipe 5, etc., so that when the device is in use, it can prevent gas exchange between the outside and the cavity through the gap between the lower sealing pipe 2 and the upper sealing pipe 3, and can prevent the outside and the cavity from being installed through the gas collection instrument 6 and the air pump 7. Gas exchange occurs at the place, so that the device has the function of being able to completely seal the cavity between the pipeline to be tested 1 and the lower sealing tube 2 and the upper sealing tube 3 .

Working principle: when the user uses the device, firstly fix the lower sealing strip 201 fixedly connected with the lower sealing tube 2 under the pipe 1 to be tested, and then fix the upper sealing strip 301 fixedly connected with the upper sealing tube 3 on the Measure the top of the pipe 1, at this time, the lower sealing strip 201 and the upper sealing strip 301 are abutting, and the threaded rod 203 provided on the first connecting table 202 passes through the connecting hole 303 opened on the second connecting table 302, and then the connecting nut 4 is threaded Installed on the threaded rod 203, the lower sealing tube 2, the lower sealing strip 201, the upper sealing tube 3 and the upper sealing strip 301 can completely seal the pipeline 1 to be tested, and the pipeline 1 to be tested is sealed with the lower sealing tube 2 and the upper sealing tube 1. A cavity is formed between the tubes 3, and due to the sealing effect of the lower sealing strip 201 and the upper sealing strip 301, the cavity cannot exchange gas with the outside world.

After that, start the air pump 7 first, so that the gas around the pipeline 1 to be measured is pumped away through the air extraction pipe 701, so that the cavity between the pipeline 1 to be measured, the lower sealing tube 2 and the upper sealing tube 3 is a vacuum, and finally the gas collection instrument is started. 6. Make the collection probe 601 collect the gas in the vacuum cavity. If there is a crack on the pipeline 1 to be tested and the natural gas in the pipeline 1 to be tested leaks, the collection probe 601 can collect the natural gas and then generate a signal, indicating that the pipeline has been generated. Give way.

The basic principles and main features of the present invention and the advantages of the present invention are shown and described above. It should be understood by those skilled in the art that the present invention is not limited by the above-mentioned embodiments. The above-mentioned embodiments and descriptions only illustrate the principle of the present invention. Without departing from the spirit and scope of the present invention, the present invention There will also be various changes and improvements in the new model, which all fall within the scope of the claimed invention. The claimed scope of the present invention is defined by the appended claims and their equivalents.

Claims (7)

1. A pipeline leak detection device, comprising a pipeline to be tested (1), a lower sealing tube (2), an upper sealing tube (3), a connecting nut (4), a sealing hose (5), and a gas collection instrument (6) and an air suction pump (7), characterized in that: a lower sealing strip (201) is fixedly connected to the top of the outer wall of the lower sealing tube (2), and an upper sealing strip (201) is fixedly connected to the bottom of the outer wall of the upper sealing tube (3). 301), the pipeline (1) to be tested is fixedly installed between the lower sealing strip (201) and the upper sealing strip (301); Two first connection platforms (202) are arranged on the circular surface of the lower sealing tube (2), and threaded rods (203) are arranged on the tops of the two first connection platforms (202). Two second connection platforms (302) are arranged on the circular surface of the tube (3), and both of the second connection platforms (302) are provided with connecting holes (303), and the lower sealing tube (2) and the upper A threaded rod (203), a connecting hole (303) and a connecting nut (4) are used for fixed installation between the sealing pipes (3), and two mounting holes (304) are opened on the circular surface of the upper sealing pipe (3). , the two mounting holes (304) are fixedly connected with a sealing hose (5), the gas collection instrument (6) is fixedly connected with one sealing hose (5), and the air pump (7) is connected with the other The sealing hose (5) is fixedly connected. 2. A pipeline leak detection device according to claim 1, characterized in that: the lower sealing pipe (2) is a semi-circular hollow cylinder, and the bottom of the lower sealing strip (201) is connected to the lower sealing pipe (2). ) is in contact with the top of the outer wall of the lower sealing strip (201), and the top of the lower sealing strip (201) is in contact with the outer surface of the pipe to be tested (1). 3. A pipeline leak detection device according to claim 1, characterized in that: the upper sealing pipe (3) is a semi-circular hollow cylinder, and the top of the upper sealing strip (301) is connected to the upper sealing pipe (3). ) is in contact with the bottom of the outer wall of the upper sealing strip (301), and the bottom of the upper sealing strip (301) is in contact with the outer surface of the pipeline (1) to be tested. 4. A pipeline leak detection device according to claim 2, wherein the top of the lower sealing strip (201) is in contact with the outer surface of the pipeline (1) to be tested, and the bottom of the upper sealing strip (301) is in contact with the outer surface of the pipeline (1) to be tested. When in contact with the outer surface of the pipeline (1) to be tested, the top of the lower sealing strip (201) abuts against the bottom of the upper sealing strip (301). 5. A pipeline leak detection device according to claim 1, characterized in that: the two first connection platforms (202) are symmetrically distributed about the axis of the lower sealing pipe (2), and the two first connection platforms (202) are symmetrically distributed with respect to the axis of the lower sealing pipe (2). The tables (202) are all in contact with the top of the outer wall of the lower sealing tube (2). 6. A pipeline leak detection device according to claim 1, characterized in that: the two connecting holes (303) are symmetrically distributed with respect to the axis of the upper sealing pipe (3), and the two connecting holes (303) Both are in contact with the top of the outer wall of the upper sealing tube (3). 7. A pipeline leak detection device according to claim 1, characterized in that: the installation hole (304) is in contact with the outer wall of the sealing hose (5), and the bottom of the gas collection instrument (6) is provided with There is a collection probe (601) in contact with the inner wall of the sealing hose (5), and a suction pipe (701) in contact with the inner wall of the sealing hose (5) is provided at the bottom of the air pump (7).

Images