Pipeline connection seam air leakage detection device

Abstract

The utility model discloses a pipeline connection seam air leakage detection apparatus, comprising a clamping clamp, a top end of which is provided with a handle, and one side of the handle is provided with an air storage container; the pipeline winding belt is wound at the joint of the pipeline, one end of the pipeline winding belt is fixedly connected with the lower end of the first clamping plate of the clamping clip, the other end of the pipeline winding belt crosses the lower end of the second clamping plate of the clamping clip and is wound on the winder on the inner side of the first clamping plate, and the inner side of the pipeline winding belt is provided with a gas detection cavity in sealing contact with the pipeline; the gas storage belt is embedded in the pipeline winding belt, the gas storage belt is communicated with the gas storage container through a gas guide pipe, a pump body is arranged on the gas guide pipe, and a gas outlet hole communicated with the gas detection cavity is formed in the gas storage belt; the air pressure sensor is fixed on the inner wall of the air detection cavity; and the display is fixed at the other side end of the handle and is electrically connected with the air pressure sensor. The device is directly wound at the joint position of the pipeline, and has the advantages of simple structure, low cost and convenience in operation and carrying.

Description

TECHNICAL FIELD

[0001] The utility model relates to pipeline gas tightness detection device technical field more specifically relates to a pipeline connecting joint gas leakage detection device. BACKGROUND

[0002] The gas conveying pipeline is usually spliced by multiple pipelines, if the joint is not well treated, the gap leakage will occur, therefore, it is necessary to use the pipeline pressure detection device to detect, to avoid the leakage in the use process. Such as the pressure pipeline pressure detection device of detecting leakage point position disclosed by Chinese utility model CN201921579251.4, this device needs to set the side pressure pipe in the device on the pipeline outside, when encountering the elbow pipe, it cannot continue to move forward and detect, cannot meet the needs of complex pipeline detection.

[0003] In order to solve the above problems, the pipeline leakage detector disclosed by Chinese utility model CN202222895165.2 includes a shell, a telescopic drive wheel, two annular air bags and an air pump; the two annular air bags are respectively arranged at both ends of the shell, a multi-way electromagnetic valve is arranged in the shell, an air inlet is arranged on the peripheral wall of the shell, and the air pump is connected with the annular air bag and the air inlet through the multi-way electromagnetic valve and a hose; a control circuit board is arranged in the shell, and an air pressure sensor is arranged on the outer wall of the shell. The annular air bag is inflated by the air pump, the annular air bag expands and contacts the inner wall of the pipeline on both sides of the joint, so that a sealed space is formed between the annular air bag, the outer wall of the shell and the inner wall of the pipeline, the air pump inflates the sealed space again, the air pressure of the sealed space is detected by the air pressure sensor, and the air pressure data is transmitted to the operation terminal through the wireless transmission module, and the detection personnel of the operation terminal can know whether there is a gap at the pipeline joint according to the change of the air pressure data. And when encountering the curved pipeline, the drive wheel can be telescopic according to the actual situation, so that the detector can freely travel in the pipeline, and can adapt to the pipeline with different inner diameters.

[0004] However, the applicant finds that the above-mentioned pipeline leakage detector still has some deficiencies, such as the drive wheel in the detector needs to be driven by the motor to walk in the pipeline, but when the motor fails, the drive wheel cannot walk in the pipeline, and thus cannot reach the pipeline joint position, and finally cannot detect the joint leakage, and because the whole detector is in the pipeline, the device cannot be taken out from the pipeline; in addition, the detector includes many electrical elements, such as the air pump, the multi-way electromagnetic valve, the fisheye camera, the buzzer, the motor, the air pressure sensor, the wireless transmission module, etc., which leads to the complex structure of the detector, inconvenient to carry, and high cost.

[0005] Therefore, how to provide a pipeline joint leakage detection device which is simple in structure, low in cost and convenient to carry, and can detect leakage of straight pipe joints and leakage of curved pipe joints is a problem to be solved by those skilled in the art. Utility model content

[0006] Therefore, the utility model provides a pipeline joint leakage detection device which is simple in structure, low in cost and convenient to carry, and can detect leakage of straight pipe joints and leakage of curved pipe joints.

[0007] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme:

[0008] A pipeline joint leakage detection device, comprising:

[0009] A clamping clamp, the top end of the clamping clamp is fixed with a handle, one side end of the handle is fixed with a gas storage container;

[0010] A pipeline winding belt, the pipeline winding belt is sealingly wound at the joint of the pipeline, one end of the pipeline winding belt is fixedly connected with the lower end of the first clamping plate of the clamping clamp, the other end is wound on a winder on the inner side of the first clamping plate beyond the lower end of the second clamping plate of the clamping clamp, the inner side of the pipeline winding belt is provided with a gas detection cavity in sealing contact with the pipeline;

[0011] A gas storage belt, the gas storage belt is embedded in the pipeline winding belt, the gas storage belt is connected and communicated with the gas storage container through a gas guide pipe, the gas guide pipe is provided with a pump body for pumping the gas in the gas storage container to the gas storage belt, the gas storage belt is provided with a gas outlet hole communicated with the gas detection cavity on the belt wall;

[0012] A gas pressure sensor, the gas pressure sensor is fixed on the inner wall of the gas detection cavity;

[0013] A display, the display is fixed on the other side end of the handle, the display is electrically connected with the gas pressure sensor.

[0014] Compared with the prior art, the pipeline connecting joint leakage detection device has the advantages that: when in use, the first clamping plate and the second clamping plate of the clamping clamp are opened, a detection personnel winds the pipeline winding belt at the joint position of the pipeline by holding the other end of the pipeline winding belt, then winds the other end of the pipeline winding belt on the winding device, tightens the pipeline winding belt by the winding device, and makes the pipeline winding belt tightly wind on the pipeline; the first clamping plate and the second clamping plate are closed, the pump body pumps the gas in the gas storage container into the gas storage belt, the gas in the gas storage belt enters the gas detection cavity through the gas outlet, the gas pressure in the gas detection cavity is detected by the gas pressure sensor, and the detection result is displayed on the display; the detection personnel can know whether there is a gap at the pipeline joint by observing the change of the gas pressure, that is, if the pressure value of the gas detection cavity decreases, it indicates that the pipeline connecting joint has the problem of insufficient sealing, and if the pressure value of the gas detection cavity remains unchanged, it indicates that the pipeline connecting joint is in good sealing condition; after the detection is completed, the first clamping plate and the second clamping plate are opened again, the pipeline winding belt is loosened by the winding device, and finally the pipeline winding belt is taken off from the pipeline.

[0015] Therefore, the detection device directly winds the device at the joint position of the pipeline outside the pipeline by winding, and has the advantages of simple structure, low cost, convenient carrying, and avoiding the problem that the detection device built in the pipeline cannot be taken out when walking fails.

[0016] Further, the clamping clamp comprises: a horizontal plate, the first clamping plate, the second clamping plate and a contraction spring, two ends of the horizontal plate are respectively connected with upper ends of the first clamping plate and the second clamping plate, and two ends of the contraction spring are respectively fixedly connected with inner sides of the first clamping plate and the second clamping plate; and the handle is fixed on the top end of the horizontal plate.

[0017] The contraction spring is arranged, so that the first clamping plate and the second clamping plate can be automatically closed after being opened.

[0018] Further, an accommodating groove is formed in the inner side of the first clamping plate close to the lower end thereof, and the winding device comprises:

[0019] A winding roller shaft is rotatably installed on two opposite groove walls of the accommodating groove, and one end of the winding roller shaft protrudes from one side of the first clamping plate, and the other end of the pipeline winding belt is wound on the winding roller shaft.

[0020] A rotating disc is located on one side of the first clamping plate, and the rotating disc is fixedly connected with one end of the winding roller shaft.

[0021] A locking screw is screwed on the rotating disc, and the tail end of the locking screw is in contact with the top of one side wall of the first clamping plate.

[0022] The beneficial effects produced by the above technical scheme are that after the pipeline is wound on the winding roller shaft, the detection personnel rotates the rotating disc, the rotating disc drives the winding roller shaft to rotate, and then the pipeline winding belt is tightened, then the locking screw is twisted to make the tail end of the locking screw tightly abut against the side wall of the first clamping plate, and then the rotating disc is fixed by the locking screw to avoid the reverse rotation of the rotating disc causing the pipeline winding belt to no longer tightly wind the pipeline and causing side leakage, which leads to poor detection effect.

[0023] Further, the outer edge surface of the rotating disc is a friction surface.

[0024] The beneficial effects produced by the above technical scheme are that the friction between the detection personnel and the outer edge surface of the rotating disc can be increased, and the rotating disc can be easily rotated by the detection personnel.

[0025] Further, the gas outlet holes and the gas pressure sensors are multiple, multiple partition plates are fixed on the inner wall of the gas detection cavity at intervals, the gas detection cavity is divided into multiple sub-detection cavities by the multiple partition plates, the multiple gas outlet holes and the multiple sub-detection cavities one-to-one correspond and communicate, and the gas pressure sensors are fixed on the cavity wall of each sub-detection cavity.

[0026] The beneficial effects produced by the above technical scheme are that the partition plates make the gas pressure of each sub-detection cavity independent and not interfere with each other, and the multiple sub-detection cavities are arranged around the pipeline joint at 360°, so that when the pressure of a certain sub-detection cavity changes, the specific leakage point of the pipeline joint can be quickly known, and then only the leakage point needs to be repaired in the later period, without the need to repair the entire joint, which greatly improves the repair efficiency.

[0027] Further, the two opposite side walls of the pipeline winding belt are fixed with sealing belts for sealing winding with the pipeline, the two opposite inner side walls of the two sealing belts are respectively fixedly connected with the two side ends of the multiple partition plates, and the opposite inner side walls of the two sealing belts and the inner side wall of the gas storage belt enclose the sub-detection cavity.

[0028] The beneficial effects produced by the above technical scheme are that the sealing belts can improve the sealing winding effect of the pipeline winding belt and ensure that the sub-detection cavity is a closed space.

[0029] Further, the bottom of the sealing belt has a compression wrinkle section, and the bottom surface of the compression wrinkle section is a sealing concave surface that is vacuum adsorbed and attached to the outer wall of the pipeline.

[0030] The beneficial effects produced by the above technical scheme are that when the sealing band is tightly wound on the pipeline, the compressed wrinkle section of the sealing band is continuously compressed, so that the sealing concave surface is more fitted to the pipeline wall, and the air inside the sealing concave surface is discharged to form a vacuum inside and firmly seal and suck to the pipeline, thereby ensuring the airtightness of the sub-detection cavity.

[0031] Further, the gas in the gas storage container is colored gas, and the pipeline winding band is a transparent band.

[0032] The beneficial effects produced by the above technical scheme are that when the sealing band is tightly wound on the pipeline, the compressed wrinkle section of the sealing band is continuously compressed, so that the sealing concave surface is more fitted to the pipeline wall, and the air inside the sealing concave surface is discharged to form a vacuum inside and firmly seal and suck to the pipeline, thereby ensuring the airtightness of the sub-detection cavity. BRIEF DESCRIPTION OF DRAWINGS

[0033] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or the prior art description. Obviously, the drawings in the following description are only the embodiments of the present application, and for those skilled in the art, other drawings can also be obtained without creative labor on the basis of the provided drawings.

[0034] Figure 1 A schematic view of the pipeline joint gas leakage detection device provided by the present application wound on a pipeline.

[0035] Figure 2 A structural schematic view of the pipeline joint gas leakage detection device provided by the present application.

[0036] Figure 3 A Figure 2 An enlarged schematic view of the structure of the local part A.

[0037] Figure 4 A side view cross-sectional schematic view of the pipeline joint gas leakage detection device provided by the present application wound on a pipeline.

[0038] Figure 5 A plan view of the gas detection cavity.

[0039] Figure 6 A cross-sectional view of the sealing band. DETAILED DESCRIPTION

[0040] The technical solutions in the embodiments of the utility model will be apparently and completely described in connection with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all the other embodiments obtained by the ordinary skilled in the art without creative labor belong to the scope of protection of the utility model.

[0041] As Figures 1-6 The utility model discloses a pipeline connecting joint gas leakage detection device, comprising:

[0042] Clamping clamp 1, the top of clamping clamp 1 is fixed with handle 2, one side end of handle 2 is fixed with gas storage container 3;

[0043] Pipeline winding belt 4, pipeline winding belt 4 is sealed and wound at the joint of pipeline 100, one end of pipeline winding belt 4 is fixedly connected with the lower end of the first clamping plate 12 of clamping clamp 1, the other end is wound on the rewinder 5 on the inner side of the first clamping plate 12 beyond the lower end of the second clamping plate 13 of clamping clamp 1, and the inner side of pipeline winding belt 4 has gas detection cavity 41 in sealed contact with pipeline 100;

[0044] Gas storage belt 6, gas storage belt 6 is embedded in the inside of pipeline winding belt 4, gas storage belt 6 is connected and communicated with gas storage container 3 through gas guide pipe 7, pump body 8 for pumping the gas in gas storage container 3 to gas storage belt 6 is arranged on gas guide pipe 7, and the belt wall of gas storage belt 6 is provided with gas outlet hole 61 communicated with gas detection cavity 41;

[0045] Gas pressure sensor 9, gas pressure sensor 9 is fixed on the inner wall of gas detection cavity 41;

[0046] Display 10, display 10 is fixed on the other side end of handle 2, and display 10 is electrically connected with gas pressure sensor 9.

[0047] Specifically, clamping clamp 1 includes: horizontal plate 11, first clamping plate 12, second clamping plate 13, contraction spring 14, both ends of horizontal plate 11 are integrally connected or hinged with the upper end of first clamping plate 12 and second clamping plate 13, when first clamping plate 12 and second clamping plate 13 are integrally connected with both ends of horizontal plate 11, the connecting position of first clamping plate 12 and second clamping plate 13 with horizontal plate 11 is elastically connected, so that the folding of first clamping plate 12 and second clamping plate 13 can be realized, and both ends of contraction spring 14 are fixedly connected with the inner side of first clamping plate 12 and second clamping plate 13 respectively, handle 2 is fixed on the top end of horizontal plate 11.

[0048] In some embodiments, the inner side of first clamping plate 12 close to the lower end is provided with accommodating groove 121, and rewinder 5 includes:

[0049] A winding roller shaft 51 is rotatably installed on two opposite groove walls of the accommodating groove 121, and one end of the winding roller shaft 51 extends out of one side of the first clamping plate 12, and the other end of the pipe winding belt 4 is wound on the winding roller shaft 51.

[0050] A rotating disc 52 is located on one side of the first clamping plate 12, and the rotating disc 52 is fixedly connected to one end of the winding roller shaft 51.

[0051] A locking screw 53 is screwed on the rotating disc 52, and the tail end of the locking screw 53 is in contact with the top of the side wall of the first clamping plate 12.

[0052] The outer edge surface of the rotating disc 52 is a friction surface, which can be a friction pattern, or a friction protrusion, or a friction tooth.

[0053] In some embodiments, the gas outlet holes 61 and the air pressure sensors 9 are both multiple, multiple partition plates 15 are fixed on the inner wall of the gas detection cavity 41, the multiple partition plates 15 divide the gas detection cavity 41 into multiple sub-detection cavities 411, the multiple gas outlet holes 61 correspond to and communicate with the multiple sub-detection cavities 411 one by one, and the cavity wall of each sub-detection cavity 411 is fixed with an air pressure sensor 9.

[0054] In some embodiments, the two opposite side walls of the pipe winding belt 4 are fixed with sealing belts 16 for sealing winding with the pipe 100, the sealing belts 16 can be of rubber material or plastic material, the two side ends of the multiple partition plates 15 are fixedly connected to the opposite inner side walls of the two sealing belts 16, and the opposite inner side walls of the adjacent two partition plates 15 and the two sealing belts 16 and the inner side wall of the gas storage belt 6 enclose the sub-detection cavity 411. The bottom of the sealing belt 16 has a compression wrinkle section 161, and the bottom surface of the compression wrinkle section 161 is a sealing concave surface 1611 which is vacuum adsorbed and attached to the outer wall of the pipe 100.

[0055] In some embodiments, the gas in the gas storage container 3 can be colored gas, and the pipe winding belt 4 is a transparent rubber belt or a plastic belt.

[0056] In the above embodiments, the display 10 can be provided with a power supply battery and a switch for controlling the start and stop of the pump body 8. Of course, the battery and the switch can also be arranged on the handle 2.

[0057] The detection device adopts a gas detection mode to perform wrapped detection on the pipe welding seam, and when performing detection, the first clamping plate 12 and the second clamping plate 13 of the clamping clamp 1 are opened, a detection personnel winds the other end of the pipe winding belt 4 at the joint position of the pipe 100, then winds the other end of the pipe winding belt 4 on the winding roller shaft 51, tightens the pipe winding belt 4 by rotating the rotating disc 52, so that the pipe winding belt 4 is tightly wound on the pipe 100, then the contraction spring 14 closes the first clamping plate 12 and the second clamping plate 13, the pump body 8 pumps the gas in the gas storage container 3 into the gas storage belt 6, the gas in the gas storage belt 6 enters the sub-detection cavities 411 through the gas outlet 61, the plurality of gas pressure sensors 9 detect the gas pressures of the corresponding sub-detection cavities 411 respectively, and the gas pressures are displayed on the display 10, so that the detection personnel can know whether there is a gap at the pipe joint and the position of a leakage point of the joint by observing the change of the gas pressures, that is, if the pressure value of a certain sub-detection cavity 411 becomes smaller, it indicates that the pipe joint at the position has a problem of insufficient sealing, and it is known that this is a leakage point, and if the pressure value of a certain sub-detection cavity 411 remains unchanged, it indicates that the pipe joint at the position has perfect sealing. After detection is completed, the first clamping plate 12 and the second clamping plate 13 are opened again, the pipe winding belt 4 is loosened by the winder 5, and finally the pipe winding belt 4 is removed from the pipe 100.

[0058] Compared with the conventional visual observation, the detection device is more accurate, and compared with the special detection equipment, the detection device is more convenient and has a lower cost. In addition, the detection device has a small size and a light weight, is convenient for a worker to carry and use, and has a simple operation and a good detection effect. In addition, the detection device can directly wind the straight pipe joint and the elbow pipe joint to perform the leakage detection.

[0059] The embodiments in the specification are described in a progressive manner, and each embodiment focuses on the difference from other embodiments. The same or similar parts of each embodiment can be referred to each other. For the device disclosed by the embodiments, since it corresponds to the method disclosed by the embodiments, the description is relatively simple, and the related parts can be referred to the method part.

[0060] The above description of the disclosed embodiments enables a person skilled in the art to implement or use the present application. Various modifications of the embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A pipe joint leak detection apparatus, characterized by, The utility model provides a kind of pipe clamp, including: Clamping clamp (1), the top end of the clamping clamp (1) is fixed with handle (2), one side end of the handle (2) is fixed with gas storage container (3); Pipe winding belt (4) is sealingly wound at the joint of pipe (100), one end of the pipe winding belt (4) is fixedly connected with the lower end of the first clamping plate (12) of the clamping clamp (1), the other end is wound on the winding device (5) on the inner side of the first clamping plate (12) by the lower end of the second clamping plate (13) of the clamping clamp (1), the inner side of the pipe winding belt (4) has gas detection cavity (41) in sealing contact with the pipe (100); Gas storage belt (6) is embedded inside the pipe winding belt (4), the gas storage belt (6) is connected and communicated with the gas storage container (3) by gas guide pipe (7), pump body (8) for pumping the gas in the gas storage container (3) to the gas storage belt (6) is arranged on the gas guide pipe (7), the gas outlet (61) for communicating with the gas detection cavity (41) is formed in the belt wall of the gas storage belt (6); Gas pressure sensor (9) is fixed on the inner wall of the gas detection cavity (41); Display (10) is fixed on the other side end of the handle (2), the display (10) is electrically connected with the gas pressure sensor (9).

2. A pipeline joint leak detection apparatus according to claim 1, wherein, The clamping clamp (1) includes: horizontal plate (11), the first clamping plate (12), the second clamping plate (13), the retraction spring (14), the upper end of the first clamping plate (12) and the second clamping plate (13) is connected with the both ends of the horizontal plate (11), the inner side of the first clamping plate (12), the second clamping plate (13) is fixedly connected with the both ends of the retraction spring (14);The handle (2) is fixed on the top end of the horizontal plate (11).

3. A pipeline joint leak detection apparatus according to claim 1, wherein, The inner side of the first clamping plate (12) is close to the lower end and is provided with accommodating groove (121), and the winding device (5) includes: Winding roller shaft (51), the both ends of the winding roller shaft (51) are rotatably installed on the two opposite groove walls of the accommodating groove (121), and one end of the winding roller shaft (51) extends out of one side of the first clamping plate (12), and the other end of the pipe winding belt (4) is wound on the winding roller shaft (51); Rotary disc (52), the rotary disc (52) is located on one side of the first clamping plate (12), and one end of the rotary disc (52) is fixedly connected with the winding roller shaft (51); Locking screw (53), the locking screw (53) is screwed on the rotary disc (52), and the tail end of the locking screw (53) is in contact with the top of one side wall of the first clamping plate (12).

4. A pipeline joint leak detection apparatus according to claim 3, wherein, The outer edge surface of the rotary disc (52) is a friction surface.

5. A pipeline joint leak detection apparatus according to any one of claims 1 to 4, wherein, The air outlet holes (61) and the air pressure sensors (9) are multiple, multiple partition plates (15) are fixed on the inner wall of the air detection cavity (41) at intervals, the air detection cavity (41) is divided into multiple sub-detection cavities (411) by the multiple partition plates (15), multiple air outlet holes (61) correspond to and communicate with multiple sub-detection cavities (411) one by one, and the cavity wall of each sub-detection cavity (411) is fixed with the air pressure sensor (9).

6. A pipeline joint leak detection apparatus according to claim 5, wherein, The sealing bands (16) for sealing winding with the pipeline (100) are fixed on the two opposite side walls of the pipeline winding belt (4), the two side ends of the multiple partition plates (15) are fixedly connected with the opposite inner side walls of the two sealing bands (16), and the opposite inner side walls of the two adjacent partition plates (15) and the two sealing bands (16) and the inner side wall of the gas storage belt (6) enclose the sub-detection cavity (411).

7. A pipeline joint leak detection apparatus according to claim 6, wherein, The bottom of the sealing band (16) has a compression wrinkle section (161), and the bottom surface of the compression wrinkle section (161) is a sealing concave surface (1611) which is vacuum adsorbed and attached to the outer wall of the pipeline (100).

8. A pipeline joint leak detection apparatus according to any one of claims 1-4, 6, 7, wherein, The gas in the gas storage container (3) is colored gas, and the pipeline winding belt (4) is a transparent belt.

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