Online nondestructive flaw detector for pressure pipeline detection

Abstract

The utility model provides an on-line nondestructive flaw detector for detecting a pressure pipeline. The online nondestructive flaw detector for pressure pipeline detection comprises a pipeline, a first annular cover, a second annular cover, a third annular cover and a fourth annular cover, a second hinge is installed at the joint of the rear ends of the first annular cover and the third annular cover, and a first hinge is installed at the joint of the rear ends of the second annular cover and the fourth annular cover. According to the online nondestructive flaw detector for detecting the pressure pipeline, provided by the utility model, the second annular cover, the fourth annular cover, the first annular cover and the third annular cover are connected through the first hinge and the second hinge, so that the online nondestructive flaw detector is convenient to mount and dismount; the output end of the motor drives the gear to rotate, and the gear and the gear ring rotate relatively, so that the arc-shaped plate drives the nondestructive inspection device to move along the annular groove through the sliding block so as to complete the inspection around the pipeline by one circle, all parts of the pipeline are inspected without dead angles through the interaction of the components, and the later use safety of the pipeline is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of pipeline flaw detection, in particular to an online non-destructive flaw detector for pressure pipeline detection. Background Art

[0002] After the metal pipe is formed, as well as the welds after the pipe is welded, non-destructive testing is required to check whether there are cracks, impurities, etc. in the metal pipe and the weld. It is an important inspection process, among which ultrasonic testing is more widely used.

[0003] The existing China Patent Network Publication No. CN114166940B discloses an online nondestructive flaw detector for pressure pipeline detection, including a fixed ring, a driving mechanism for driving the fixed ring to move along the pipeline is connected to the inside of the fixed ring, and the driving mechanism can move along pipelines of different diameters. A first rotating ring is rotatably connected to the inner side wall of the fixed ring, and a plurality of flaw detectors in a circular array are slidably connected to the inside of the first rotating ring. The flaw detectors are arranged opposite to each other in pairs, and the flaw detectors surround the pipeline for detecting the pipeline.

[0004] However, the above device still has a problem that the fixing ring is integrated. When encountering a pipe with other devices connected at both ends, it is necessary to disconnect one end of the pipe from the other devices and then put the fixing ring onto the outside of the pipe, making the detection process cumbersome.

[0005] Therefore, it is necessary to provide an online nondestructive flaw detector for pressure pipeline detection to solve the above technical problems. Utility Model Content

[0006] The utility model provides an online nondestructive flaw detector for pressure pipeline detection, which solves the problem that a fixing ring cannot be directly sleeved on the outside of the pipeline.

[0007] In order to solve the above technical problems, the utility model provides an online nondestructive flaw detector for pressure pipeline detection, comprising: a pipeline, an annular cover 1, an annular cover 2, an annular cover 3 and an annular cover 4, wherein a hinge 2 is installed at the rear end connection of the annular cover 1 and the annular cover 3, and a hinge 1 is installed at the rear end connection of the annular cover 2 and the annular cover 4, and an annular groove is provided on the opposite sides of the annular cover 1, the annular cover 2, the annular cover 3 and the annular cover 4, and a gear ring is installed on the inner wall of the annular groove, and an arc plate is in contact with the side walls of the annular cover 3 and the annular cover 4, a motor is installed on the top of the arc plate, a gear is installed on the output end of the motor, and the gear is meshed with the gear ring, a connecting rod is installed on the right end of the motor, and a slider is installed on the other end of the connecting rod, and the slider is in contact with the annular groove, and a nondestructive flaw detection device is installed at the bottom of the arc plate.

[0008] Preferably, the inner walls of the annular cover 1, the annular cover 2, the annular cover 3 and the annular cover 4 are evenly provided with a plurality of groups of circular grooves, and the inner walls of the plurality of groups of the circular grooves are slidably connected with round blocks.

[0009] Preferably, springs are installed between the tops of several groups of the round blocks and the inner walls of the circular grooves, and round rods are installed at the bottoms of several groups of the round blocks.

[0010] Preferably, guide wheels are installed at the bottom of several groups of round rods, and several groups of guide wheels are in close contact with the outer wall of the pipeline.

[0011] Preferably, protrusions are installed at the connection between the left side walls of the annular cover one and the annular cover three and the connection between the right side walls of the annular cover two and the annular cover four, and nuts are threadedly connected to the outer walls of each two groups of protrusions.

[0012] Preferably, a handle is installed on the outer wall of the annular cover three.

[0013] Compared with the related art, the online nondestructive flaw detector for pressure pipeline detection provided by the utility model has the following beneficial effects:

[0014] The utility model provides an online nondestructive flaw detector for pressure pipeline detection. The annular cover 2, the annular cover 4, the annular cover 1 and the annular cover 3 connected by the hinge 1 and the hinge 2 are convenient for installation and disassembly. The output end of the motor drives the gear to rotate, and the gear and the gear ring rotate relatively, so that the arc plate drives the nondestructive flaw detector to move along the annular groove through the slider, thereby completing the detection around the pipeline. Through the interaction of the above components, every place of the pipeline is detected without leaving a dead angle, thereby ensuring the safety of the pipeline in later use. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 A structural schematic diagram of a preferred embodiment of an online non-destructive flaw detector for pressure pipeline detection provided by the utility model;

[0016] Figure 2 for Figure 1 A schematic diagram of the internal structure of the pipeline shown;

[0017] Figure 3 for Figure 1 A schematic diagram of the structure of the spring structure shown;

[0018] Figure 4 for Figure 1 An enlarged schematic diagram of part A is shown;

[0019] Figure 5 for Figure 2 An enlarged schematic diagram of part B is shown.

[0020] Numbers in the figure: 1, pipe, 2, annular cover one, 3, annular cover two, 4, handle, 5, annular cover three, 6, annular cover four, 7, bump, 8, annular groove, 9, nut, 10, gear ring, 11, guide wheel, 12, non-destructive flaw detection device, 13, circular groove, 14, motor, 15, spring, 16, hinge one, 17, round block, 18, round rod, 19, arc plate, 20, gear, 21, connecting rod, 22, slider, 23, hinge two. DETAILED DESCRIPTION

[0021] The utility model is further described below in conjunction with the accompanying drawings and implementation modes.

[0022] Please refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 ,in, Figure 1 A structural schematic diagram of a preferred embodiment of an online non-destructive flaw detector for pressure pipeline detection provided by the utility model;

[0023] Figure 2 for Figure 1 A schematic diagram of the internal structure of the pipeline shown; Figure 3 for Figure 1 A schematic diagram of the structure of the spring structure shown; Figure 4 for Figure 1 An enlarged schematic diagram of part A is shown; Figure 5 for Figure 2 An enlarged schematic diagram of part B is shown. The online nondestructive flaw detector for pressure pipeline detection includes: a pipeline 1, an annular cover 1 2, an annular cover 2 3, an annular cover 3 5 and an annular cover 4 6, wherein the annular cover 1 2 and the annular cover 3 5 are connected at the rear end with a hinge 23, and the annular cover 2 3 and the annular cover 4 6 are connected at the rear end with a hinge 16, and the opposite sides of the annular cover 1 2, the annular cover 2 3, the annular cover 3 5 and the annular cover 4 6 are provided with annular grooves 8, and the inner wall of the annular groove 8 is provided with a gear ring 10, and an arc plate 19 is in contact with the side walls of the annular cover 3 5 and the annular cover 4 6, and a motor 14 is installed on the top of the arc plate 19, and a gear 20 is installed on the output end of the motor 14, and the gear 20 is meshed with the gear ring 10, and a connecting rod 21 is installed on the right end of the motor 14, and a slider 22 is installed on the other end of the connecting rod 21, and the slider 22 is in contact with the annular groove 8, and a nondestructive flaw detection device 12 is installed at the bottom of the arc plate 19.

[0024] The inner walls of the annular cover 1 2 , the annular cover 2 3 , the annular cover 3 5 and the annular cover 4 6 are evenly provided with a plurality of groups of circular grooves 13 , and the inner walls of the plurality of groups of the circular grooves 13 are slidably connected with round blocks 17 .

[0025] Springs 15 are installed between the tops of several groups of the round blocks 17 and the inner wall of the circular groove 13 , and round rods 18 are installed at the bottoms of several groups of the round blocks 17 .

[0026] The bottom of the plurality of groups of round rods 18 are all provided with

[0027] The guide wheel 11, several groups of the guide wheels 11 are in close contact with the outer wall of the pipe 1. After the guide wheel 11 contacts the pipes 1 of different sizes, the spring 15 will be compressed or stretched so that the guide wheel 11 is always in contact with the outer wall of the pipe 1, so as to adapt to the pipes 1 of different sizes.

[0028] A protrusion 7 is installed at the connection between the left end side wall of the annular cover 1 2 and the annular cover 3 5 and the connection between the right end side wall of the annular cover 2 3 and the annular cover 4 6. The outer wall of each two groups of the protrusions 7 is threadedly connected with a nut 9. The outer wall of the protrusion 7 is provided with an external thread. The annular cover 1 2 and the annular cover 3 5 or the annular cover 2 3 and the annular cover 4 6 can be opened by removing the nut 9 from the protrusion 7.

[0029] A handle 4 is installed on the outer wall of the annular cover 3 5 .

[0030] The working principle of the online nondestructive flaw detector for pressure pipeline detection provided by the utility model is as follows: the annular cover three 5 and the annular cover four 6 are respectively installed on the pipeline 1, and then the annular cover one 2 and the annular cover two 3 are closed with the annular cover three 5 and the annular cover four 6 respectively, and the output end of the motor 14 drives the gear 20 to rotate, and the gear 20 and the gear ring 10 rotate relative to each other, so that the arc plate 19 drives the nondestructive flaw detection device 12 to move along the annular groove 8 through the slider 22, thereby completing the detection around the pipeline 1 for one circle.

[0031] Compared with the related art, the online nondestructive flaw detector for pressure pipeline detection provided by the utility model has the following beneficial effects:

[0032] The annular cover 2 3, annular cover 4 6, annular cover 1 2 and annular cover 3 5 connected by hinge 1 16 and hinge 2 23 are convenient for installation and disassembly; the output end of the motor 14 drives the gear 20 to rotate, and the gear 20 and the gear ring 10 rotate relatively, so that the arc plate 19 drives the non-destructive flaw detection device 12 to move along the annular groove 8 through the slider 22, thereby completing a detection around the pipeline 1. Through the interaction of the above components, every place of the pipeline 1 is detected without leaving a blind spot, ensuring the safety of the pipeline 1 in the later use.

[0033] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. An online nondestructive flaw detector for pressure pipeline detection, characterized in that: include: A pipeline, an annular cover 1, an annular cover 2, an annular cover 3 and an annular cover 4, wherein a hinge 2 is installed at the rear end connection of the annular cover 1 and the annular cover 3, and a hinge 1 is installed at the rear end connection of the annular cover 2 and the annular cover 4, and an annular groove is provided on the opposite sides of the annular cover 1, the annular cover 2, the annular cover 3 and the annular cover 4, and a gear ring is installed on the inner wall of the annular groove, and an arc plate is fitted and contacted between the side walls of the annular cover 3 and the annular cover 4, a motor is installed on the top of the arc plate, a gear is installed on the output end of the motor, and the gear is meshed and connected with the gear ring, a connecting rod is installed on the right end of the motor, and a slider is installed on the other end of the connecting rod, and the slider is fitted and slidably connected with the annular groove, and a non-destructive flaw detection device is installed at the bottom of the arc plate.

2. The online nondestructive flaw detector for pressure pipeline detection according to claim 1 is characterized in that: The inner walls of the annular cover 1, the annular cover 2, the annular cover 3 and the annular cover 4 are evenly provided with a plurality of groups of circular grooves, and the inner walls of the plurality of groups of the circular grooves are slidably connected with round blocks.

3. The online nondestructive flaw detector for pressure pipeline detection according to claim 2 is characterized in that: Springs are installed between the tops of several groups of round blocks and the inner walls of the circular grooves, and round rods are installed at the bottoms of several groups of round blocks.

4. The online nondestructive flaw detector for pressure pipeline detection according to claim 3 is characterized in that: The bottoms of several groups of round rods are all equipped with guide wheels, and several groups of guide wheels are in close contact with the outer wall of the pipeline.

5. The on-line nondestructive flaw detector for pressure pipeline detection according to claim 1 is characterized in that: The left side wall connection of the annular cover 1 and the annular cover 3 and the right side wall connection of the annular cover 2 and the annular cover 4 are both equipped with protrusions, and the outer walls of each two groups of protrusions are threadedly connected with nuts.

6. The online nondestructive flaw detector for pressure pipeline detection according to claim 1, characterized in that: A handle is installed on the outer wall of the annular cover three.

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