CN110906172A - A leak monitoring device for a gas pipeline - Google Patents

Abstract

The invention provides a leakage monitoring device for a gas pipeline. The leakage monitoring device for a gas pipeline includes: a support rod and a sliding detection device; the support rod includes a grip part and a telescopic rod fixedly connected to the grip part, and the grip part A detergent box is arranged on it; the sliding detection device includes a first arc-shaped plate and a second arc-shaped plate; an electric push rod is connected between the second arc-shaped plate and the telescopic rod; the inner wall of the second arc-shaped plate is provided with multiple There are retractable balls, the inner wall of the first arc plate is provided with a plurality of limit through holes that cooperate with the balls and communicate with the cavity; the inner wall of the first arc plate and the inner wall of the second arc are provided with There are spray holes, and the detergent box is provided with a suction pump connected with the spray holes; it also includes gas sensors arranged on the first arc-shaped plate and the second arc-shaped plate for detecting combustible gas. The device can be slid on the high-altitude gas pipeline, and can perform double detection to locate the leakage position, with high accuracy.

Description

A leak monitoring device for a gas pipeline

technical field

The invention relates to the technical field of gas pipeline leakage monitoring, in particular to a leakage monitoring device for gas pipelines.

Background technique

After the overhead welding of the gas pipeline is completed, high-pressure gas is usually injected into the gas pipeline. After a period of time, it is checked whether the gas pressure in the gas pipeline has dropped. If the pressure drops, it can be considered that there is a leak in the gas pipeline. For some small welding trachoma, the inspection workers need to carry a ladder, climb up and down to inspect the welding parts in turn, which consumes a lot of physical strength; the monitoring work is slow; at the same time, the monitoring is not comprehensive, and the gas pipeline transportation process or other external reasons, It can also cause cracks in the gas pipeline. The inspection workers often ignore this aspect, so that the leaking parts are found and repeated operations are carried out many times, which affects the construction progress.

SUMMARY OF THE INVENTION

The purpose of the present invention is to provide a leakage monitoring device for gas pipelines in order to overcome the deficiencies of the prior art.

The present invention is achieved through the following technical solutions:

The invention provides a leakage monitoring device for a gas pipeline, the leakage monitoring device for a gas pipeline comprising: a support rod and a sliding detection device; wherein,

The support rod includes a handle portion and a telescopic rod fixedly connected to the handle portion, and a detergent box is arranged on the handle portion;

The sliding detection device includes a first arc-shaped plate and a second arc-shaped plate oppositely arranged at the top end of the telescopic rod; wherein an electric pusher is connected between the outer wall of the second arc-shaped plate and the telescopic rod. rod; the first arc-shaped plate has a cavity into which the second arc-shaped plate is inserted, the inner wall of the second arc-shaped plate is provided with a plurality of retractable balls, and the inner wall of the first arc-shaped plate is provided with a plurality of retractable balls. There are a plurality of limit through holes which are matched with the balls and communicate with the cavity; and the arc length of the second arc-shaped plate is greater than the arc length of the first arc-shaped plate; so The inner wall of the first arc-shaped plate and the inner wall of the second arc-shaped plate are provided with spray holes, and the detergent box is provided with a suction pump connected with the spray holes;

It also includes gas sensors arranged on the first arc-shaped plate and the second arc-shaped plate for detecting gas leakage, and the handle part is provided with an alarm connected to the gas sensors.

Preferably, the telescopic rod is an electric telescopic rod, and a control switch that is electrically connected to the electric telescopic rod, the electric push rod and the water pump is provided on the handle portion, respectively.

Preferably, the second arc-shaped plate is hinged to the top end of the telescopic rod through a rotating shaft; a plurality of grooves are spaced on the second arc-shaped plate along the direction of the inner arc surface; It is located in the groove, and at least part of it is exposed outside the corresponding groove; each groove is provided with a spring, and the free end of the spring is connected with an arc-shaped piece that interferes with the corresponding ball.

Preferably, the balls are hard rubber spheres.

The beneficial effects of the present invention are: through the electric telescopic rod provided, the worker can adjust the height on the ground to perform the detection operation, and the electric push rod is provided to connect the second arc-shaped plate, which is convenient for adjustment, and is suitable for pipelines of different diameters. For testing, multiple balls fit the gas pipeline to slide, which makes the testing work more convenient and labor-saving; at the same time, if the detergent is sprayed on the pipeline, it can be judged as a leaking part, and it is equipped with a gas sensor to perform double detection and enhance the The detection effect has certain practical value.

Description of drawings

FIG. 1 is a schematic structural diagram of a leakage monitoring device for a gas pipeline provided by an embodiment of the present invention.

Detailed ways

Please refer to FIG. 1 . FIG. 1 is a schematic structural diagram of a leakage monitoring device for a gas pipeline provided by an embodiment of the present invention.

The invention provides a leakage monitoring device for a gas pipeline, the leakage monitoring device for a gas pipeline comprising: a support rod and a sliding detection device; wherein,

The support rod 1 includes a handle portion 2 and a telescopic rod fixedly connected to the handle portion 2, and the handle portion 2 is provided with a detergent box 4;

The sliding detection device includes a first arc-shaped plate 6 and a second arc-shaped plate 7 which are oppositely arranged at the top end of the telescopic rod; wherein, the outer wall of the second arc-shaped plate 7 is connected with the telescopic rod There is an electric push rod 8; the first arc-shaped plate 6 has a cavity into which the second arc-shaped plate 7 is inserted, and the inner wall of the second arc-shaped plate 7 is provided with a plurality of retractable balls 9, so The inner wall of the first arc-shaped plate is provided with a plurality of limit through holes that cooperate with the balls 9 and communicate with the cavity; and the arc length of the second arc-shaped plate 7 is greater than that of the first arc-shaped plate 7. The arc length of the arc plate 6; the inner wall of the first arc plate 6 and the inner wall of the second arc are provided with spray holes, and the detergent box 4 is provided with the spray holes. The connected suction pump 5;

It also includes a gas sensor 10 arranged on the first arc-shaped plate 6 and the second arc-shaped plate 7 for detecting gas leakage, and the handle part 2 is provided with an alarm connected to the gas sensor 10 11.

The beneficial effects of the present invention are: through the electric telescopic rod provided, the worker can adjust the height on the ground to perform the detection operation, and the electric push rod is provided to connect the second arc-shaped plate, which is convenient for adjustment, and is suitable for pipelines of different diameters. For testing, multiple balls fit the gas pipeline to slide, which makes the testing work more convenient and labor-saving; at the same time, if the detergent is sprayed on the pipeline, it can be judged as a leaking part, and it is equipped with a gas sensor to perform double detection and enhance the The detection effect has certain practical value.

In order to facilitate the understanding of the leakage monitoring device for a gas pipeline provided by the embodiments of the present invention, it will be described in detail below with reference to specific embodiments.

Continuing to refer to FIG. 1 , the present invention provides a leakage monitoring device for a gas pipeline. The leakage monitoring device for a gas pipeline includes: a support rod 1 and a sliding detection device; wherein,

The support rod 1 includes a handle portion 2 and a telescopic rod fixedly connected to the handle portion 2, and the handle portion 2 is provided with a detergent box 4;

The sliding detection device includes a first arc-shaped plate 6 and a second arc-shaped plate 7 that are oppositely arranged at the top end of the telescopic rod; wherein, an electric push rod 8 is connected between the outer wall of the second arc-shaped plate 7 and the telescopic rod; The arc-shaped plate 6 has a cavity into which the second arc-shaped plate 7 is inserted. The inner wall of the second arc-shaped plate 7 is provided with a plurality of retractable balls 9. The balls 9 of the device are hard rubber balls. The inner wall of the first arc-shaped plate is provided with a plurality of limit through holes that cooperate with the balls 9 and communicate with the cavity; and the arc length of the second arc-shaped plate 7 is greater than that of the first arc-shaped plate 6. ; The inner wall of the first arc plate 6 and the inner wall of the second arc are provided with spray holes, and the detergent box 4 is provided with a suction pump 5 connected with the spray holes; Specifically, the telescopic rod is an electric telescopic rod 3 , the handle part 2 is provided with a control switch 12 electrically connected to the electric telescopic rod 3, the electric push rod 8 and the water pump respectively.

In order to enable the balls 9 to be engaged in the corresponding limit through holes after retracting, the second arc-shaped plate 7 is hinged to the top end of the telescopic rod through the rotating shaft; the second arc-shaped plate 7 is arranged at intervals along the direction of its inner arc surface There are a plurality of grooves; the balls 9 are limited to the grooves in a one-to-one correspondence, and at least parts are exposed outside the corresponding grooves. Each groove is provided with a spring, and the free end of the spring is connected with an arc-shaped piece that interferes with the corresponding ball 9 . The second arc plate of the device can selectively set two balls 9 at the ends 1-2 to be retractable, so as to facilitate the adjustment of the diameter of the sliding detection device.

More preferably, it also includes a gas sensor 10 for detecting gas leakage disposed on the first arc-shaped plate 6 and the second arc-shaped plate 7 , and an alarm 11 connected to the gas sensor 10 is disposed on the handle part 2 .

When the device is used specifically, the length of the electric telescopic rod 3 is adjusted according to the height of the pipeline, so that the sliding detection device surrounds the outer wall of the gas pipeline, and the electric push rod 8 is activated to make the second arc-shaped plate 7 enter the first arc-shaped plate 6 . Inside, the retractable balls 9 are snapped into the limit through holes, and adjusted so that multiple balls 9 all fit on the outer wall of the gas pipeline, making sliding more labor-saving, start the suction pump 5, and spray detergent water, which can be soapy water. Or washing powder water, at the same time there is a gas sensor 10 for gas detection, if there is a bubbling part or the alarm 11 gives an alarm, you need to stop and observe carefully. It avoids maintenance workers from reciprocating climbing operations, and the device can comprehensively detect the gas pipeline; it needs to be specified that the gas sensor 10 can also be replaced with a gas alarm when detecting the pipeline for natural gas circulation, which can be closer to the leaking part.

It can be seen from the above description that the provided electric telescopic rod 3 enables workers to adjust the height on the ground to perform detection operations, and an electric push rod 8 is provided to connect the second arc-shaped plate 7 for convenient adjustment. When the pipeline is detected, a plurality of balls 9 slide against the gas pipeline, which makes the detection work more convenient and labor-saving. It has certain practical value to carry out double detection and enhance the detection effect.

The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present invention shall be included in the protection scope of the present invention. Inside.

Claims (4)

1. A leakage monitoring device for a gas pipeline, comprising: a support rod and a sliding detection device; wherein,

the support rod comprises a holding part and a telescopic rod fixedly connected with the holding part, and a detergent box is arranged on the holding part;

the sliding detection device comprises a first arc-shaped plate and a second arc-shaped plate which are oppositely arranged at the top end of the telescopic rod; an electric push rod is connected between the outer wall of the second arc-shaped plate and the telescopic rod; the first arc-shaped plate is provided with a cavity into which the second arc-shaped plate is inserted, the inner wall of the second arc-shaped plate is provided with a plurality of telescopic balls, and the inner wall of the first arc-shaped plate is provided with a plurality of limiting through holes which are matched with the balls and communicated with the cavity; and the arc length of the second arcuate plate is greater than the arc length of the first arcuate plate; spray holes are formed in the inner wall of the first arc-shaped plate and the inner wall of the second arc-shaped plate, and a water suction pump connected with the spray holes is arranged in the detergent box;

still including setting up be in first arc with be used for detecting the gas sensor that gas leaked on the second arc, the portion of holding is provided with the connection the siren of gas sensor.

2. The leakage monitoring device for the gas pipeline according to claim 1, wherein the telescopic rod is an electric telescopic rod, and the grip portion is provided with a control switch electrically connected to the electric telescopic rod, the electric push rod and the water pump respectively.

3. The leakage monitoring device for the gas pipeline according to claim 1, wherein the second arc-shaped plate is hinged to the top end of the telescopic rod through a rotating shaft; a plurality of grooves are formed in the second arc-shaped plate at intervals along the direction of the inner arc surface of the second arc-shaped plate; the balls are limited in the grooves in a one-to-one correspondence manner, and at least parts of the balls are exposed out of the corresponding grooves; and a spring is arranged in each groove, and the free end of each spring is connected with an arc-shaped sheet which is abutted to the corresponding ball.

4. A leak monitoring device for a gas pipe according to claim 3, characterized in that the ball is a hard rubber sphere.

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