CN211289600U

CN211289600U - Pipeline flange leakage monitoring alarm device

Info

Publication number: CN211289600U
Application number: CN201922268521.6U
Authority: CN
Inventors: 陈琛; 孙茂军
Original assignee: China Yangtze Power Co Ltd
Current assignee: China Yangtze Power Co Ltd
Priority date: 2019-12-17
Filing date: 2019-12-17
Publication date: 2020-08-18
Anticipated expiration: 2029-12-17

Abstract

The utility model provides a pipeline flange leakage monitoring alarm device, is including setting up the shell body in pipeline flange department, and the shell body has formed a sealed space with pipeline flange parcel, is equipped with the leakage monitoring sensor in the lowest of shell body. The leakage monitoring sensor is a wireless water leakage alarm sensor which is used for being in wireless connection with the monitoring center, and the leakage monitoring sensor is used for being electrically connected with the monitoring center. The installation is simple, need not reform transform original pipeline, can carry out the leakage detection to flange joint on the pipeline, has reduced and has patrolled and examined intensity.

Description

Pipeline flange leakage monitoring alarm device

Technical Field

The utility model belongs to pipeline seepage detection device field, in particular to pipeline flange seepage monitoring alarm device.

Background

The pipeline is generally used in liquid medium conveying, the connecting mode comprises flange connection, threaded connection, welding and the like, but no matter what connecting mode, the condition that leakage is caused by the defects of sealing damage, loosening of fastening threads, joint cracks and the like exists, the leakage is usually gradually developed into jet leakage from light and micro leakage, even pipe explosion is caused, a large amount of conveying waste is caused, and very large hidden dangers are brought to some special media and medium leakage. At present, pipeline leakage detection devices in the market mainly function to determine a leakage position or determine whether a pipeline leaks after the pipeline leaks, and the following problems generally exist in the devices: firstly, the management leakage cannot be monitored in time, and the management leakage is often detected to a certain degree through visual inspection or other monitoring technologies, so that the leakage part can be determined; secondly, if the number of pipeline joints is large, the pipeline is long or the pipeline is buried underground, the specific leakage position cannot be visually detected, and multiple segmented monitoring is needed.

Disclosure of Invention

In view of the technical problem that the background art exists, the utility model provides a pipeline flange seepage monitoring alarm device, the installation is simple, need not reform transform original pipeline, can carry out the seepage detection to the flange joint on the pipeline, has reduced and has patrolled and examined intensity.

In order to solve the technical problem, the utility model discloses following technical scheme has been taken and has been realized:

the utility model provides a pipeline flange leakage monitoring alarm device, is including setting up the shell body in pipeline flange department, and the shell body has formed a sealed space with pipeline flange parcel, is equipped with the leakage monitoring sensor in the lowest of shell body.

In the preferred scheme, the leakage monitoring sensor is a wireless water leakage alarm sensor which is used for being wirelessly connected with a monitoring center, and the leakage monitoring sensor is used for being electrically connected with the monitoring center.

In a preferred scheme, the wireless water leakage alarm sensor is a LoRa wireless water leakage alarm sensor.

In the preferred scheme, the outer casing include install the first outer casing at vertical pipeline, the upper portion of first outer casing is the drum structure, the lower part of first outer casing is the funnel structure, has installed leakage monitoring sensor in the bottom edge of first outer casing.

In a preferred scheme, the first outer shell is composed of a left first half outer shell and a right first half outer shell, one end of each of the two first half outer shells is connected through a hinge, and the other end of each of the two first half outer shells is connected through a buckle; two edges all are equipped with the arc sealing washer about the first shell body, and the edge that two first half shell body agrees with all is equipped with the elastic sealing pad.

In the preferred scheme, the outer shell comprises a second outer shell arranged on the horizontal pipeline, two ends of the second outer shell are of a cylindrical structure, the middle section of the second outer shell is of an annular structure protruding outwards, and the bottom of the middle section of the second outer shell is provided with a leakage monitoring sensor.

In a preferred scheme, the second outer shell is composed of an upper second half outer shell and a lower second half outer shell, and the two second half outer shells are connected through a buckle.

In a preferable scheme, an elastic sealing gasket is arranged at the edge joint of the second half outer shell; arc-shaped sealing rings are arranged at the joints of the left end and the right end of the second outer shell and the pipeline.

This patent can reach following beneficial effect:

simple structure, the device only need install the shell body additional at pipeline flange junction, need not to reform transform former pipeline, can realize the nondestructive monitoring of pipeline.

The principle is simple: the outer shell is utilized to encapsulate the leakage detection sensor and the pipeline flange together, when the pipeline flange leaks, the leakage detection sensor is connected with a circuit under the action of a medium and sends a signal, and after receiving the signal, the monitoring center can determine the occurrence and the occurrence position of the pipeline leakage according to the preset leakage detection sensor number and position information and send an alarm signal, so that the pipeline leakage can be detected and positioned accurately in time.

Drawings

The invention will be further explained with reference to the following figures and examples:

fig. 1 is an installation schematic view of the present invention, in which a first outer shell is installed on a vertical pipeline;

fig. 2 is an installation schematic view of the present invention, when the second housing is installed on the horizontal pipe;

fig. 3 is a schematic diagram of data transmission between the leakage monitoring sensor and the monitoring center of the present invention;

FIG. 4 is a flow chart of the present invention;

fig. 5 is a first three-dimensional structure diagram of the first outer casing of the present invention;

fig. 6 is a second three-dimensional structure diagram of the first outer casing of the present invention;

fig. 7 is a three-dimensional structure diagram of the second housing of the present invention.

In the figure: pipeline flange 1, shell body 2, seepage monitoring sensor 3, arc sealing washer 4, elastic seal pad 5, hasp 6.

Detailed Description

The preferred scheme is as shown in fig. 1-4, a pipeline flange leakage monitoring alarm device, including setting up shell body 2 in pipeline flange 1 department, shell body 2 has formed a sealed space with pipeline flange 1 parcel, is equipped with leakage monitoring sensor 3 in the lowest of shell body 2, and leakage monitoring sensor 3 is used for being connected with the surveillance center electricity. The leakage monitoring sensor 3 is a wireless water leakage alarm sensor which is used for being in wireless connection with a monitoring center. The wireless water leakage alarm sensor is a LoRa wireless water leakage alarm sensor.

LoRa wireless LEAK alarm sensor adopts and soaks formula wireless alarm sensor XW-LORA-LEAK based on long-distance radio technology of LoRa, the sensor has built-in button power, under the normal condition, the sensor is in the state of opening a circuit, when the sensor is soaked by liquid, sensor circuit communicates under liquid conductive action, the sensor sends alarm signal, transmit its identity code signal to the surveillance center through external LoRa gateway, the surveillance center sends the warning suggestion and reports leakage position information through the received signal code, the managers of being convenient for in time, accurate grasp leakage information and leakage position, improve the response timeliness. In order to avoid the interference of wireless transmission receiving the enclosure space of the outer shell 2, preferentially, the outer shell 2 at the installation position of the leakage monitoring sensor 3 is provided with an installation hole, the installation hole is used for installing the leakage monitoring sensor 3, and then sealant is coated for waterproof treatment.

Because common pipeline includes vertical setting and horizontal setting, this technical scheme has adopted different shell body 2 structures respectively to two kinds of pipeline types, introduces as follows:

when the pipeline is vertically arranged, the structure of installing the outer shell 2 at the pipeline flange 1 is shown in fig. 1/5/6, the outer shell 2 comprises a first outer shell installed on the vertical pipeline, the upper part of the first outer shell is of a cylinder structure, the lower part of the first outer shell is of a funnel structure, and the bottom edge of the first outer shell is provided with the leakage monitoring sensor 3. The first outer shell is composed of a left first half outer shell and a right first half outer shell, one end of the two first half outer shells is connected through a hinge, and the other end of the two first half outer shells is connected through a hasp 6; two edges all are equipped with arc sealing washer 4 about the first shell body, and the edge that two first half shell body agrees with all is equipped with the elastic sealing pad 5. The arc-shaped sealing ring 4 is adhered to the edges of the upper opening and the lower opening of the first shell body through glue, and the elastic sealing gasket 5 is adhered to the edge of the joint of the two first half shell bodies through glue. Because the elastic sealing gasket 5 has a certain elasticity, when the two first half outer shells are closed, the two first half outer shells can be locked through the buckle 6, so that the sealing effect is achieved. The fastener 6 may be a type 433 fastener commercially available from TANJA/Tianjia.

When the pipeline is horizontally arranged, the structure for installing the outer shell 2 at the pipeline flange 1 is shown in fig. 2/7, the outer shell 2 comprises a second outer shell installed on the horizontal pipeline, the two ends of the second outer shell are in a cylindrical structure, the middle section of the second outer shell is in an annular structure protruding outwards, and the leakage monitoring sensor 3 is installed at the bottom of the middle section of the second outer shell. The second outer shell is composed of an upper second half outer shell and a lower second half outer shell, and the two second half outer shells are connected through a buckle 6. An elastic sealing gasket 5 is arranged at the joint of the edge of the second half outer shell; the joints of the left end and the right end of the second outer shell and the pipeline are provided with arc-shaped sealing rings 4. The installation principle of second shell body is the same with first shell body, and the difference is, second shell body middle part has outstanding annular structure, consequently adopts and is difficult for adopting hinge connection.

The working principle of the whole device is described in the following with reference to the attached drawings 1 to 4:

leakage detection sensor 3 installs at the lower extreme of shell body 2, no matter be at vertical pipeline or horizontal pipeline, and leakage detection sensor 3 mounted position need guarantee the lower extreme at shell body 2. When no leakage occurs to a common pipeline, no medium is dried in a sealing cavity of the outer shell 2, when leakage occurs to the pipeline flange 1, the liquid medium can flow into the cavity of the outer shell 2 and converges to the lowest part of the cavity under the action of gravity, namely the lowest point of the outer shell 2, the leakage detection sensor 3 arranged at the lowest part sends a corresponding signal and transmits the signal to a monitoring center through a wireless transmission technology under the action of the medium, after the leakage detection sensor 3 receives the signal, a pipeline leakage alarm signal is sent out, the serial number and the predefined position of the leakage detection sensor 3 are sent out according to the signal, and a leakage position signal is sent out simultaneously, so that the pipeline leakage can be detected, reported and positioned timely.

Claims

1. The utility model provides a pipeline flange leakage monitoring alarm device which characterized in that: including setting up shell body (2) in pipeline flange (1) department, shell body (2) have formed a sealed space with pipeline flange (1) parcel, are equipped with leakage monitoring sensor (3) in the lowest of shell body (2).

2. The pipe flange leakage monitoring alarm device of claim 1, wherein: the leakage monitoring sensor (3) is a wireless water leakage alarm sensor which is used for being in wireless connection with a monitoring center, and the leakage monitoring sensor (3) is used for being electrically connected with the monitoring center.

3. The pipe flange leakage monitoring alarm device of claim 2, wherein: the wireless water leakage alarm sensor is a LoRa wireless water leakage alarm sensor.

4. The pipe flange leakage monitoring alarm device of claim 1, wherein: the outer shell (2) comprises a first outer shell arranged on a vertical pipeline, the upper portion of the first outer shell is of a cylinder structure, the lower portion of the first outer shell is of a funnel structure, and the bottom edge of the first outer shell is provided with a leakage monitoring sensor (3).

5. The pipe flange leakage monitoring alarm device of claim 4, wherein: the first outer shell is composed of a left first half outer shell and a right first half outer shell, one end of the two first half outer shells is connected through a hinge, and the other end of the two first half outer shells is connected through a hasp (6); two edges all are equipped with arc sealing washer (4) about the first shell body, and the edge that two first half shell body agrees with all is equipped with the elastic sealing pad (5).

6. The pipe flange leakage monitoring alarm device of claim 1, wherein: the outer shell (2) comprises a second outer shell arranged on the horizontal pipeline, the two ends of the second outer shell are of cylinder structures, the middle section of the second outer shell is of an annular structure protruding outwards, and the bottom of the middle section of the second outer shell is provided with a leakage monitoring sensor (3).

7. The pipe flange leakage monitoring alarm device of claim 6, wherein: the second outer shell is composed of an upper second half outer shell and a lower second half outer shell, and the two second half outer shells are connected through a hasp (6).

8. The pipe flange leakage monitoring alarm device of claim 7, wherein: an elastic sealing gasket (5) is arranged at the joint of the edge of the second half outer shell; the joints of the left end and the right end of the second outer shell and the pipeline are provided with arc-shaped sealing rings (4).