Supporting and driving frame for natural gas pipeline detection

Abstract

The utility model discloses a support driving frame for natural gas pipeline detection, and relates to the technical field of pipeline detection. The middle part of the detection frame is provided with a pipe passing hole, the inner side of the pipe passing hole is provided with at least three groups of conduit members and a plurality of ultrasonic sensors along the circumferential direction, the inner side of the detection frame is uniformly provided with sound insulation members along the circumferential side surface of the pipe passing hole, pipe members are clamped between the conduit members, and the bottom of the detection frame is provided with a plurality of moving assemblies. The moving assembly is used for cooperating with the conduit moving detection rack. According to the utility model, through carrying out comprehensive and low-interference detection on the peripheral side surface of the pipe fitting in the pipe passing hole, the detection efficiency and quality are improved, and support can be provided for the detection of the pipe fitting according to the actual detection condition that whether the pipe fitting is movable or not, so that the interference of the vibration of the pipe fitting to the detection result during the detection is effectively avoided.

Description

Technical Field

[0001] This utility model belongs to the field of pipeline inspection technology, and specifically relates to a support drive frame for natural gas pipeline inspection. Background Technology

[0002] When laying natural gas pipelines, it is necessary to ensure that the pipeline is seamless and free of defects to prevent gas leakage during the natural gas transportation process. Therefore, a comprehensive leak detection of the pipeline is required.

[0003] The patent specification with publication number CN218914581 U discloses a natural gas pipeline leak detection device, including a semi-circular arc-shaped walking plate with a through groove along its length and an arc-shaped guide groove on its side; annular teeth are provided on the inner side of the semi-circular arc-shaped walking plate; two sets of walking structures are respectively rotatably mounted on both ends of the semi-circular arc-shaped walking plate and elastically limited by two sets of limiting devices, so that their walking wheels abut against the surface of the natural gas pipeline; an n-shaped frame, with guide rods fixedly mounted on both sides inside, which slide and cooperate with the guide grooves; a first motor, fixedly mounted on one side of the n-shaped frame; a gear, which is drivenly connected to the output shaft of the first motor; the gear meshes with the annular teeth; and an ultrasonic sensor, mounted on the bottom of the top plate of the n-shaped frame and located in the through groove, facing the surface of the natural gas pipeline to detect leaks.

[0004] This type of detection device uses an arc-shaped mounting platform attached to the outside of the pipe, with motor-driven wheels on both sides of the platform. An ultrasonic sensor, driven by a motor, moves in an arc shape inside the platform. As the platform moves along the pipe, it can perform ultrasonic testing on the outside of the pipe through the arc-shaped motion. However, it has some drawbacks. First, it can only test one side of the pipe at a time. When testing the other side, the device needs to be reinstalled, resulting in a small coverage area per test. Second, the mounting platform can only be attached to the circumference of the pipe and cannot support it. To prevent interference from ambient noise during ultrasonic testing, an additional support structure is needed to support the pipe, making it impossible for the platform to maintain the stability of the pipe on its own during testing. Utility Model Content

[0005] The purpose of this utility model is to provide a support drive frame for natural gas pipeline inspection. The technical problem to be solved is as follows: Existing natural gas pipeline inspection devices cannot perform a comprehensive inspection of the pipeline periphery in one go, and cannot provide stable support for the pipeline during inspection, thus failing to prevent pipeline vibration from interfering with the inspection process.

[0006] The purpose of the utility model can be achieved through the following technical solutions:

[0007] A support drive frame for natural gas pipeline inspection includes an inspection frame. The inspection frame has a pipe passage hole in the middle. At least three sets of conduit fittings and multiple ultrasonic sensors are installed circumferentially on the inner side of the pipe passage hole. Sound insulation components are evenly arranged on the inner side of the inspection frame along the periphery of the pipe passage hole. Pipe fittings are sandwiched between each of the conduit fittings. Multiple moving components are installed at the bottom of the inspection frame. The moving components are used to move the inspection frame in coordination with the conduit fittings.

[0008] As a further embodiment of this utility model: the guide tube includes guide wheel strips, both ends of which are fitted with adjusting bolts on the inner side of the testing frame, and multiple guide wheels are evenly arranged and installed along the axis of the through-hole.

[0009] As a further embodiment of this utility model: a plurality of sensor frames are installed circumferentially on the inner side of the through-hole, a plurality of ultrasonic sensors are installed on the inner side of the sensor frames, and the sound insulation component is disposed on the outer side of the ultrasonic sensors.

[0010] As a further aspect of this utility model: the distance between the inner side of the ultrasonic sensor and the central axis of the through-hole is greater than the distance between the inner side of the conduit and the central axis of the through-hole.

[0011] As a further embodiment of this utility model: the moving component includes a motor frame mounted on the bottom surface of the detection frame, a shifting motor mounted on one side of the motor frame, a drive gear mounted on the output end of the shifting motor, two wheels mounted on the side of the motor frame away from the shifting motor, driven gears mounted inside the wheels, and both sides of the drive gear mesh with the adjacent driven gears.

[0012] The beneficial effects of this utility model are:

[0013] 1. By setting a pipe passage hole inside the testing frame, installing multiple sets of conduit fittings on the periphery of the pipe passage hole, the pipe fittings are confined and supported within the pipe passage hole, and multiple sets of ultrasonic sensors are evenly arranged along the outer periphery of the pipe fittings within the pipe passage hole. At the same time, sound insulation components are installed within the pipe passage hole to absorb external sound interference during testing, enabling the device to perform comprehensive and low-interference testing of the periphery of the pipe fittings located within the pipe passage hole in a single operation, thereby improving testing efficiency and quality.

[0014] 2. Under the adjustment of the diameter of each conduit fitting, it is not only convenient to move the fitting for comprehensive inspection, but also provides stable support for the movement inspection of the fitting. When the fitting is not easy to move, the inspection frame can be driven by the four moving components installed at the bottom of the inspection frame. At this time, the conduit fitting is used to support the fitting and ensure smooth movement of the inspection frame. That is, the device can provide support for the inspection of the fitting according to the actual inspection situation of whether the fitting can be moved, thereby effectively avoiding the interference of fitting vibration on the inspection results during the inspection. Attached Figure Description

[0015] The present invention will be further described below with reference to the accompanying drawings.

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the internal structure of the pipe fitting of this utility model;

[0018] Figure 3 This is a utility model Figure 2 Enlarged detail view of point A in the middle;

[0019] Figure 4 This is a structural schematic diagram of the mobile component of this utility model.

[0020] In the diagram: 1. Detection frame; 2. Pipe hole; 3. Conduit fitting; 31. Guide wheel strip; 32. Adjusting bolt; 33. Guide wheel; 4. Ultrasonic sensor; 5. Sound insulation component; 6. Pipe fitting; 7. Moving assembly; 71. Motor frame; 72. Shifting motor; 73. Drive gear; 74. Wheel body; 75. Driven gear; 8. Sensor frame. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.

[0022] like Figures 1 to 4 As shown, a support drive frame for natural gas pipeline inspection includes an inspection frame 1. A pipe passage hole 2 is provided in the middle of the inspection frame 1. Four sets of conduit fittings 3 and multiple ultrasonic sensors 4 are installed circumferentially on the inner side of the pipe passage hole 2. Sound insulation components 5 are evenly arranged on the inner side of the inspection frame 1 along the periphery of the pipe passage hole 2. Pipe fittings 6 are clamped between each conduit fitting 3. Four moving components 7 are installed at the bottom of the inspection frame 1. The moving components 7 are used to move the inspection frame 1 in coordination with the conduit fittings 3.

[0023] like Figure 2 and Figure 4 As shown, the guide tube 3 includes guide wheel strips 31. The two ends of the guide wheel strips 31 are fitted with adjusting bolts 32 on the inner side of the testing frame 1. Five guide wheels 33 are evenly arranged and installed on the guide wheel strips 31 along the axis of the pipe hole 2.

[0024] It should be noted that since the inner side of the guide wheel strip 31 faces the axis of the through hole 2, the distance between the inner side of the guide wheel strip 31 and the axis of the through hole 2 can be adjusted by adjusting the fixing depth of the adjusting bolts 32 installed on both sides. During adjustment, a nut or washer can be added to the end of the guide wheel strip 31 near the outer side of the detection frame 1, thereby realizing the clamping function of pipe fittings 6 of different diameters. Since the clamping object on the circumferential side of the pipe fitting 6 is the guide wheel 33, the detection surface can be switched by pushing the pipe fitting 6, thereby realizing the overall detection of the pipe fitting 6. When the pipe fitting 6 is limited and installed in the through hole 2, the support function of the pipe fitting 6 is realized to ensure that the pipe fitting 6 is in a stable state during detection.

[0025] Twelve sensor racks 8 are installed circumferentially on the inner wall of the through-hole 2. Two ultrasonic sensors 4 are installed on each sensor rack 8. The sound insulation component 5 is set on the outside of the conduit 3 and the ultrasonic sensors 4. The distance between the inner side of the ultrasonic sensor 4 and the central axis of the through-hole 2 is greater than the distance between the inner side of the conduit 3 and the central axis of the through-hole 2.

[0026] It should be noted that during the inspection of pipe fitting 6, each conduit fitting 3 clamps pipe fitting 6, and each ultrasonic sensor 4, which is close to pipe fitting 6 and evenly arranged along the circumference of pipe fitting 6, performs ultrasonic inspection on pipe fitting 6. During inspection, the sound insulation component 5 installed inside the pipe hole 2 absorbs and blocks the sound from the external environment. Preferably, the sound insulation component 5 is a sound insulation cotton strip, thereby avoiding interference from external sound during ultrasonic inspection and improving sound purity. Therefore, when noise occurs in pipe fitting 6 during the sound wave inspection, the direction and location of the noise can be located to determine if there is a defect in pipe fitting 6 at that location. In addition, the circumference of pipe fitting 6 can be inspected in all directions at once during the inspection process. After the pipe fitting 6 inside the pipe hole 2 is inspected, the pipe fitting 6 is pushed to achieve the overall inspection of pipe fitting 6, thereby improving inspection efficiency. Since the ultrasonic sensor 4 is installed on the outer side of pipe fitting 6 compared to the conduit fitting 3, it can effectively emit ultrasonic waves during inspection, avoiding insufficient inspection coverage to cover the circumference of pipe fitting 6.

[0027] like Figure 4 As shown, the moving component 7 includes a motor frame 71 fixedly installed on the bottom surface of the detection frame 1. A shift motor 72 is installed on one side of the motor frame 71. A drive gear 73 is installed at the output end of the shift motor 72. Two wheels 74 are installed on the side of the motor frame 71 away from the shift motor 72. Driven gears 75 are installed inside the wheels 74. Both sides of the drive gear 73 mesh with the adjacent driven gears 75.

[0028] It should be noted that when the pipe fitting 6 under test is in a fixed state and not easy to move, the detection method of pushing the pipe fitting 6 to move inside the pipe hole 2 can be changed to driving the detection frame 1 to move for detection. Driving the detection frame 1 can be achieved by the moving component 7 installed at the bottom. Specifically, when the shifting motor 72 rotates, the connected drive gear 73 drives the driven gear 75 on the two wheel bodies 74 to rotate, and the two wheel bodies 74 rotate accordingly, thereby driving the detection frame 1 to move for detection. At this time, the pipe fitting 6 can remain stationary, and the guide tube 3 plays an auxiliary support role. In addition, when detecting the pipe fitting 6, whether pushing the pipe fitting 6 or driving the detection frame 1, the pipe fitting 6 can be stably supported by the guide tube 3 to avoid shaking, thereby avoiding the influence of noise on the inspection.

[0029] The above description provides a detailed account of one embodiment of the present invention. However, this description is merely a preferred embodiment and should not be construed as limiting the scope of the present invention. All equivalent variations and improvements made within the scope of the claims of the present invention should still fall within the patent coverage of the present invention.

Claims

1. A support drive frame for natural gas pipeline inspection, comprising an inspection frame (1), wherein a through-hole (2) is provided in the middle of the inspection frame (1), characterized in that, At least three sets of conduit fittings (3) and multiple ultrasonic sensors (4) are installed circumferentially on the inner side of the through-hole (2). Sound insulation components (5) are evenly arranged on the inner side of the detection frame (1) along the periphery of the through-hole (2). A pipe fitting (6) is sandwiched between each of the conduit fittings (3). Multiple moving components (7) are installed at the bottom of the detection frame (1). The moving components (7) are used to move the detection frame (1) in coordination with the conduit fittings (3).

2. The support drive frame for natural gas pipeline inspection according to claim 1, characterized in that, The guide tube (3) includes a guide wheel strip (31), both ends of which are fitted with adjusting bolts (32) on the inner side of the detection frame (1). Multiple guide wheels (33) are evenly arranged and installed on the guide wheel strip (31) along the axis of the through hole (2).

3. The support drive frame for natural gas pipeline inspection according to claim 1, characterized in that, Multiple sensor brackets (8) are installed circumferentially on the inner side of the through hole (2), and multiple ultrasonic sensors (4) are installed on the inner side of the sensor brackets (8). The sound insulation component (5) is disposed on the outer side of the ultrasonic sensor (4).

4. The support drive frame for natural gas pipeline inspection according to claim 1, characterized in that, The distance between the inner side of the ultrasonic sensor (4) and the central axis of the through hole (2) is greater than the distance between the inner side of the conduit (3) and the central axis of the through hole (2).

5. A support drive frame for natural gas pipeline inspection according to claim 1, characterized in that, The moving component (7) includes a motor frame (71) mounted on the bottom surface of the detection frame (1). A shift motor (72) is mounted on one side of the motor frame (71). A drive gear (73) is mounted on the output end of the shift motor (72). Two wheels (74) are mounted on the side of the motor frame (71) away from the shift motor (72). A driven gear (75) is mounted on the inner side of the wheel (74). Both sides of the drive gear (73) mesh with the adjacent driven gear (75).

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