Radiographic detection device for circumferential weld

Abstract

The utility model provides a circumferential weld ray detection device which comprises a first pipeline and a supporting base station, a bearing assembly used for supporting the first pipeline and a second pipeline is arranged on the upper end face of the supporting base station, and a detection assembly used for detecting the circumferential weld of the first pipeline and the second pipeline is arranged on the rear end face of the supporting base station. The electric push rod drives the connecting plate to descend, so that the connecting plate drives the ray flaw detector and the calibration lamp to move downwards together, the distance between the ray flaw detector and the circumferential weld joint is adjusted to the required distance by a detector, the ray flaw detector is started through the operation panel, the ray flaw detector can perform flaw detection on the circumferential weld joint, and the detection efficiency is improved. By controlling the low-speed motor to rotate forwards or backwards, the double-thread lead screw can drive the bearing rollers to synchronously move in different directions through the displacement seat and the roller supporting frame, so that detection personnel can carry out matching adjustment on the front-back distance of the bearing rollers according to the first pipeline and the second pipeline with different diameters.

Description

Technical Field

[0001] The utility model relates to the technical field of weld ray detection, in particular to a girth weld ray detection device. Background Art

[0002] The weld of two pipe joints is a typical girth weld. Welds of this shape are called girth welds in welding technology. After the girth welds of two pipes are completed, in order to ensure the normal operation of the butt joint pipes, the staff often need to use a radiographic flaw detector to test the quality of the girth welds.

[0003] In the prior art, when using the radiographic flaw detector for girth welds, most of them use binding straps to bind and fix the radiographic flaw detector to the annular side of the welded pipeline for detection. However, the binding straps are not only time-consuming and labor-intensive to bind and fix the radiographic flaw detector, but also inconvenient for the radiographic flaw detector to perform a comprehensive detection around the girth weld of the pipeline, and the practicality is poor. Utility Model Content

[0004] The utility model aims to provide a girth weld radiographic detection device to solve the problems raised in the above background technology.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A girth weld radiographic detection device comprises a first pipeline, a supporting base and a second pipeline, wherein the first pipeline is placed above the supporting base, the right end of the first pipeline is connected to the second pipeline, the upper end surface of the supporting base is provided with a supporting component for supporting the first pipeline and the second pipeline, and the rear end surface of the supporting base is provided with a detection component for detecting the girth weld between the first pipeline and the second pipeline.

[0007] Preferably, the detection component includes a support frame, an operation panel, a support side plate, an electric push rod, a connecting plate and a X-ray flaw detector. The support frame is fixedly connected to the middle position of the rear end surface of the support base, the rear end surface of the support frame is fixedly connected to the support side plate, the operation panel is installed on the right end surface of the support side plate, the electric push rod is installed on the upper side of the inner wall of the support frame, the connecting plate is installed at the lower end of the electric push rod, and the X-ray flaw detector is installed in the middle position of the lower end surface of the connecting plate.

[0008] Preferably, a calibration lamp is installed on the front side of the lower end face of the connecting plate, and the material of the calibration lamp is a laser light source laser lamp, and a limit rod is provided on the front side of the upper end face of the connecting plate.

[0009] Preferably, the supporting assembly includes a supporting roller, a roller support, a displacement seat, a low-speed motor and a double-threaded screw. A low-speed motor is installed on the front end face of the supporting base, and a double-threaded screw is connected to the rear end of the low-speed motor. Displacement seats are symmetrically arranged on the front and rear sides of the annular side of the double-threaded screw, and roller support frames are symmetrically arranged on the left and right sides of the upper end face of the displacement seat, and supporting rollers are arranged inside the roller support frame.

[0010] Preferably, an internal threaded through hole is opened in the middle position inside the displacement seat, and the internal threaded through hole is meshed with the double-threaded screw rod, and the roller support frame is concave in shape.

[0011] Preferably, a limiting cavity is provided on the upper end surface of the supporting base, and the limiting cavity matches the displacement seat, and four groups of supporting rollers are installed, and the four groups of supporting rollers have the same specifications.

[0012] Preferably, a digital scale line is arranged on the right side of the upper end surface of the support base, and a control panel is installed on the right side of the front end surface of the support base.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] 1. After the welding of the first pipeline and the second pipeline is completed, the utility model drives the connecting plate to descend through the electric push rod, so that the connecting plate drives the X-ray flaw detector and the calibration lamp to move downward together, so that the inspector can adjust the distance between the lower end face of the X-ray flaw detector and the girth weld to the required distance, and the calibration lamp is operated to irradiate the laser line downward, so that the inspector can adjust the girth weld of the first pipeline and the second pipeline to be directly below the X-ray flaw detector, and start the X-ray flaw detector through the operation panel, so that the X-ray flaw detector can detect the volume defects such as pores, slag inclusions, and incomplete penetration at the girth weld;

[0015] 2. The utility model can control the low-speed motor to rotate forward or reversely, so that the double-threaded screw can drive the supporting roller to move synchronously in different directions through the displacement seat and the roller support frame, so that the inspection personnel can match and adjust the front and rear spacing of the supporting roller according to the first pipe and the second pipe of different diameters. By setting the supporting roller, it is convenient for the inspection personnel to rotate the first pipe and the second pipe, so that the X-ray flaw detector can perform a comprehensive inspection on the circumferential weld, and the utility model has good practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the main structure of the utility model;

[0017] Figure 2 It is a structural diagram of the supporting component and the detection component in the utility model;

[0018] Figure 3 It is a structural diagram of the supporting assembly in the utility model;

[0019] Figure 4 It is a structural diagram of the detection component in the utility model;

[0020] Figure 5 It is a structural diagram of the displacement seat in the utility model.

[0021] In the figure: 1. first pipeline; 2. supporting base; 21. digital scale line; 3. supporting assembly; 31. supporting roller; 32. roller support frame; 33. displacement seat; 34. low-speed motor; 35. double-threaded screw; 36. limiting cavity; 37. internal threaded through hole; 4. second pipeline; 5. detection assembly; 51. supporting frame; 52. operating panel; 53. supporting side plate; 54. limiting rod; 55. electric push rod; 56. connecting plate; 57. calibration lamp; 58. X-ray flaw detector. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] See also Figure 1-5 , the utility model provides a technical solution:

[0024] Embodiment 1:

[0025] A girth weld X-ray detection device includes a first pipeline 1, a support base 2 and a second pipeline 4, the first pipeline 1 is placed above the support base 2, the right end of the first pipeline 1 is connected to the second pipeline 4, the right end of the first pipeline 1 and the left end of the second pipeline 4 are connected by welding, the upper end surface of the support base 2 is provided with a supporting component 3 for supporting the first pipeline 1 and the second pipeline 4, the rear end surface of the support base 2 is provided with a detection component 5 for detecting the girth weld of the first pipeline 1 and the second pipeline 4, a control panel is installed on the right side of the front end surface of the support base 2, the control panel is connected to the low-speed motor 34, the calibration light 57 and the electric push rod 55 respectively through wires, the control panel facilitates the detection personnel to control the low-speed motor 34, the calibration light 57 and the electric push rod 55 respectively, because the internal detailed structure and working principle of the control panel belong to the relatively mature technology in the prior art, they will not be described in detail here.

[0026] The detection component 5 includes a support frame 51, an operation panel 52, a support side plate 53, an electric push rod 55, a connecting plate 56 and a X-ray flaw detector 58. The support frame 51 is fixedly connected to the middle position of the rear end surface of the support base 2, and the support frame 51 is connected to the support base 2 by welding. The support frame 51 is L-shaped, and the L-shaped support frame 51 will support the electric push rod 55. The rear end surface of the support frame 51 is fixedly connected to the support side plate 53, and the support side plate 53 is connected to the support frame 51 by welding. The support side plate 53 will support the operation panel 52. An electric push rod 55 is installed on the upper side of the inner wall of the support frame 51. When working, the electric push rod 55 will drive the connecting plate 56 to move up and down. A connecting plate 56 is installed at the lower end of the electric push rod 55, and the connecting plate 56 will support the X-ray flaw detector 58 and the calibration lamp 57.

[0027] A radiographic flaw detector 58 is installed in the middle position of the lower end surface of the connecting plate 56. The center position of the lower end surface of the radiographic flaw detector 58 is on the same center line as the center position of the supporting base 2. When working, the radiographic flaw detector 58 will perform flaw detection on volume defects such as pores, slag inclusions, and incomplete penetration in the welds of the first pipeline 1 and the second pipeline 4 below. An operation panel 52 is installed on the right end surface of the supporting side plate 53. The operation panel 52 not only facilitates the inspection personnel to control the operation of the radiographic flaw detector 58, but also can display the working status of the radiographic flaw detector 58. Since the internal detailed structure and working principle of the radiographic flaw detector 58 and the operation panel 52 are relatively mature technologies in the prior art, they will not be described in detail here. A signal line is connected between the operation panel 52 and the radiographic flaw detector 58, and the signal line facilitates the signal connection between the operation panel 52 and the radiographic flaw detector 58.

[0028] A calibration lamp 57 is installed on the front side of the lower end face of the connecting plate 56, and the calibration lamp 57 is made of a laser light source. The calibration lamp 57 made of a laser light source will irradiate a clear laser line downward when working. When the laser line is irradiated on the circumferential weld between the first pipeline 1 and the second pipeline 4, it indicates that the circumferential weld between the first pipeline 1 and the second pipeline 4 has been aligned with the X-ray flaw detector 58, so that the staff can more conveniently adjust the position of the circumferential weld between the first pipeline 1 and the second pipeline 4 to the left and right. A limit rod 54 is provided on the front side of the upper end face of the connecting plate 56, and the lower end of the limit rod 54 is connected to the upper end of the connecting plate 56 by welding. The limit rod 54 will limit the connecting plate 56 to prevent the connecting plate 56 from offset or shaking during the lifting and use process.

[0029] Embodiment 2:

[0030] On the basis of the first embodiment, in this embodiment, by controlling the low-speed motor 34 to rotate forward or reverse, the double-threaded screw 35 can drive the supporting roller 31 to move synchronously in opposite directions through the displacement seat 33 and the roller support frame 32, so that the inspection personnel can match and adjust the front and rear spacing of the supporting roller 31 according to the first pipe 1 and the second pipe 4 with different diameters. By setting the supporting roller 31, it is convenient for the inspection personnel to rotate the first pipe 1 and the second pipe 4, so that the X-ray flaw detector 58 can perform a comprehensive inspection on the circumferential weld.

[0031] The supporting assembly 3 includes a supporting roller 31, a roller support frame 32, a displacement seat 33, a low-speed motor 34 and a double-threaded screw 35. A low-speed motor 34 is installed on the front end surface of the supporting base 2. The low-speed motor 34 will drive the double-threaded screw 35 to rotate at a low speed. The rear end of the low-speed motor 34 is connected to the double-threaded screw 35. The external thread on the front side of the annular side of the double-threaded screw 35 rotates in opposite directions to the external thread on the rear side of the annular side. The double-threaded screw 35 with opposite thread rotation directions will drive the displacement seats 33 on the front and rear sides to move synchronously in different directions when rotating. The displacement seats 33 are symmetrically arranged on the front and rear sides of the annular side of the double-threaded screw 35. Two groups of displacement seats 33 are arranged, and the specifications of the two groups of displacement seats 33 are the same. The displacement seats 33 will not only support the roller support frame 32, but also drive the roller support frame 32 to move forward and backward.

[0032] Roller brackets 32 are symmetrically arranged on the left and right sides of the upper end surface of the displacement seat 33. There are four groups of roller brackets 32, and the four groups of roller brackets 32 have the same specifications. The roller brackets 32 are connected to the displacement seat 33 by welding. The roller brackets 32 are concave in shape. The four groups of roller brackets 32 with a concave shape will support the four groups of supporting rollers 31. Supporting rollers 31 are arranged inside the roller brackets 32. There are four groups of supporting rollers 31 installed, and the four groups of supporting rollers 31 have the same specifications. The supporting rollers 31 are rotatable structures. The four rotatable groups of supporting rollers 31 will not only support the first pipe 1 and the second pipe 4, but also make the first pipe 1 and the second pipe 4 more labor-saving and convenient when rotating.

[0033] An internal threaded through hole 37 is provided in the middle position inside the displacement seat 33, and the internal threaded through hole 37 is meshed with the double-threaded screw rod 35. The internal threaded through hole 37 facilitates the double-threaded screw rod 35 to drive the displacement seat 33 to move forward and backward. A limit cavity 36 is provided on the upper end surface of the support base 2, and the limit cavity 36 matches the displacement seat 33. The limit cavity 36 will limit and guide the displacement seat 33 to prevent the displacement seat 33 from being offset during movement and use. A digital scale line 21 is provided on the right side of the upper end surface of the support base 2. The digital scale line 21 facilitates the inspection personnel to observe the position of the displacement seat 33, so that the inspection personnel can match and adjust the distance between the front and rear displacement seats 33 according to the first pipe 1 and the second pipe 4 with different diameters.

[0034] Working principle: After the welding of the first pipe 1 and the second pipe 4 is completed, the inspector first wears external radiation protection clothing, and then controls the low-speed motor 34 to rotate forward through the control panel, so that the low-speed motor 34 drives the double-threaded screw 35 to rotate forward at a low speed, and the forward-rotating double-threaded screw 35 will drive the displacement seats 33 on the front and rear sides to move inward synchronously, and then the displacement seat 33 drives the supporting roller 31 to move inward synchronously through the roller support frame 32. Similarly, when the low-speed motor 34 is controlled to be reversed, the displacement seat 33 can drive the supporting roller 31 to move outward synchronously through the roller support frame 32, so that the inspector can match and adjust the front and rear spacing of the supporting roller 31 according to the diameters of the first pipe 1 and the second pipe 4; after the adjustment is completed, the welded first pipe 1 and the second pipe 4 can be moved and placed on the supporting roller 31 (reference Figure 1 ), and then the calibration lamp 57 is powered on through the control panel, so that the calibration lamp 57 irradiates the laser line downwards. At this time, the inspector then displaces the first pipeline 1 and the second pipeline 4 laterally, so that the girth weld of the first pipeline 1 and the second pipeline 4 is irradiated by the calibration lamp 57, so as to avoid misalignment between the girth weld of the first pipeline 1 and the second pipeline 4 and the X-ray flaw detector 58; then the inspector controls the electric push rod 55 to extend through the control panel, so that the electric push rod 55 drives the X-ray flaw detector 58 and the calibration lamp 57 to move downwards together through the connecting plate 56, and moves downwards until the distance between the lower end surface of the X-ray flaw detector 58 and the girth weld is the required distance, and then the X-ray flaw detector 58 can be started through the operation panel 52. The linear flaw detector 58 performs flaw detection on the volume defects such as pores, slag inclusions, and incomplete penetration at the girth weld of the first pipeline 1 and the second pipeline 4 below. During this process, the inspection personnel only need to slowly rotate the first pipeline 1 and the second pipeline 4 by hand, so that the ray flaw detector 58 can perform a comprehensive inspection of the girth weld of the first pipeline 1 and the second pipeline 4; after the inspection is completed, the connecting plate 56 is driven to rise by the electric push rod 55, so that the connecting plate 56 drives the ray flaw detector 58 to move up to the initial position together, and then the inspected first pipeline 1 and the second pipeline 4 can be moved away, and then the above operation can be repeated to inspect the girth weld of the next group of first pipelines 1 and second pipelines 4 after welding.

[0035] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A girth weld radiographic inspection device, comprising a first pipeline (1), a supporting base (2) and a second pipeline (4), characterized in that: A first pipeline (1) is placed above the support base (2), the right end of the first pipeline (1) is connected to a second pipeline (4), the upper end surface of the support base (2) is provided with a supporting component (3) for supporting the first pipeline (1) and the second pipeline (4), and the rear end surface of the support base (2) is provided with a detection component (5) for detecting the girth weld between the first pipeline (1) and the second pipeline (4); The supporting assembly (3) comprises a supporting roller (31), a roller support frame (32), a displacement seat (33), a low-speed motor (34) and a double-threaded screw (35); the front end surface of the supporting base (2) is mounted with a low-speed motor (34); the rear end of the low-speed motor (34) is connected with a double-threaded screw (35); the displacement seats (33) are symmetrically arranged on the front and rear sides of the annular side surface of the double-threaded screw (35); the roller support frame (32) is symmetrically arranged on the left and right sides of the upper end surface of the displacement seat (33); and the supporting roller (31) is arranged inside the roller support frame (32).

2. A girth weld radiographic inspection device according to claim 1, characterized in that: The detection assembly (5) comprises a support frame (51), an operation panel (52), a support side plate (53), an electric push rod (55), a connecting plate (56) and a radiographic flaw detector (58); the support frame (51) is fixedly connected to the middle position of the rear end surface of the support base (2); the rear end surface of the support frame (51) is fixedly connected to the support side plate (53); the right end surface of the support side plate (53) is mounted with the operation panel (52); the upper side of the inner wall of the support frame (51) is mounted with the electric push rod (55); the lower end of the electric push rod (55) is mounted with the connecting plate (56); and the radiographic flaw detector (58) is mounted at the middle position of the lower end surface of the connecting plate (56).

3. A girth weld radiographic inspection device according to claim 2, characterized in that: A calibration lamp (57) is installed on the front side of the lower end face of the connecting plate (56), and the calibration lamp (57) is made of a laser light source. A limit rod (54) is provided on the front side of the upper end face of the connecting plate (56).

4. A girth weld radiographic inspection device according to claim 1, characterized in that: An internal threaded through hole (37) is provided in the middle of the displacement seat (33), and the internal threaded through hole (37) is meshed with the double-threaded screw rod (35), and the roller support frame (32) is concave in shape.

5. The girth weld radiographic inspection device according to claim 1, characterized in that: The upper end surface of the support base (2) is provided with a limit cavity (36), and the limit cavity (36) matches the displacement seat (33). Four groups of support rollers (31) are installed, and the four groups of support rollers (31) have the same specifications.

6. A girth weld radiographic inspection device according to claim 1, characterized in that: A digital scale line (21) is provided on the right side of the upper end surface of the support base (2), and a control panel is installed on the right side of the front end surface of the support base (2).

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