Pipeline welding seam nondestructive testing device

Abstract

The utility model discloses a pipeline welding seam nondestructive testing device, which belongs to the technical field of pipeline welding seam detection and comprises a fixing pipe, a fixing ring is fixedly mounted at one end of the fixing pipe, and an annular fixing box is fixedly mounted at the other end of the fixing pipe. The installation positioning mechanism comprises two driving rings, the two driving rings are installed on the outer side of the fixing pipe in a sliding mode, two air cylinders are fixedly installed on one side of the fixing ring, and pistons of the air cylinders are fixedly connected with the two driving rings; and the driving impurity removal mechanism comprises an annular exhaust box, and the annular exhaust box is rotationally installed on one side of the annular fixing box. The end, facing the fixed pipe, of the air outlet of the exhaust pipe is bent, and the bent end is inclined rightwards, so that the bent end of the exhaust pipe and the fixed pipe are arranged at an angle of 45 degrees in the transverse direction, and therefore when the exhaust pipe exhausts air, the annular exhaust box can be driven to rotate, and meanwhile the device can be driven to move.

Description

Technical Field

[0001] This utility model belongs to the field of pipeline weld inspection technology, specifically, it relates to a non-destructive testing device for pipeline welds. Background Technology

[0002] Pipes are a widely used material, applied extensively in industry, agriculture, infrastructure, and daily life. Examples include common water pipes and gas pipes, as well as industrial oil and natural gas pipelines. To ensure welding quality, ultrasonic flaw detectors are used to inspect the weld joints after welding is completed.

[0003] CN220730125U discloses a non-destructive testing device for pipe welds, comprising a first fixing ring, a second fixing ring rotatably connected to one end of the first fixing ring, a clamping mechanism fixedly connected to one end of both the first and second fixing rings, a rotating mechanism rotatably connected to one end of both the first and second fixing rings, an adjusting mechanism at one end of the rotating mechanism, a probe fixedly connected to one end of the adjusting mechanism, and a main unit electrically connected to the other end of the probe. A first connecting plate is fixedly connected to one end of both the first and second fixing rings, and a first screw is screwed to the inner side of one end of the first connecting plate. The device is fixed to the outside of a steel pipe by clamping blocks. By rotating the first and second rotating rings, the probe can rotate around the steel pipe, enabling inspection of the entire circumference of the steel pipe. This facilitates the inspection of steel pipes of different diameters by operators, thereby improving inspection efficiency.

[0004] Existing testing equipment has difficulty cleaning impurities on pipelines when inspecting them, which can easily lead to inaccurate flaw detection. In addition, some sticky welding materials on the welds can also affect the test results.

[0005] To address the aforementioned issues, this application proposes a non-destructive testing device for pipeline welds. Utility Model Content

[0006] In view of the problems in the related technologies, this utility model proposes a non-destructive testing device for pipeline welds to overcome the above-mentioned technical problems existing in the existing related technologies.

[0007] To achieve the above objectives, the present invention adopts the following technical solution:

[0008] A non-destructive testing device for pipe welds includes a fixed pipe, one end of which is fixedly fitted with a fixing ring, and the other end of which is fixedly fitted with an annular fixing box.

[0009] The mounting and positioning mechanism includes two drive rings, which are slidably mounted on the outside of the fixed tube. Two cylinders are fixedly mounted on one side of the fixed ring, and the pistons of the cylinders are fixedly connected to the two drive rings.

[0010] The impurity removal mechanism includes an annular exhaust box, which is rotatably mounted on one side of an annular fixed box. Two vibration motors are fixedly mounted on one side of the annular exhaust box, and a striking block is mounted on the output shaft of the vibration motor. A mounting plate is fixedly mounted on the annular exhaust box, and a flaw detector is mounted on the mounting plate.

[0011] Preferably, the installation and positioning mechanism further includes eight push rods, which are slidably mounted on the fixed tube. One end of each push rod is rotatably connected to a roller, and the push rod is drivenly connected to the corresponding drive ring.

[0012] With the setting of eight push rods and the action of rollers, the pipe can be pushed and fixed to the pipe. At the same time, the operation of two sets of four push rods can simultaneously clamp and position square and round pipes.

[0013] Preferably, four push plates are fixedly installed on one side of the drive ring. The push plates are provided with wedge-shaped grooves, and movable shafts are slidably connected to the inner walls of the wedge-shaped grooves. The movable shafts are fixedly connected to the corresponding push rods.

[0014] The sliding connection between the movable shaft and the wedge groove allows the laterally moving drive ring to push the push rod through the push plate.

[0015] Preferably, the drive impurity removal mechanism further includes multiple exhaust pipes, which are fixedly installed inside the annular exhaust box. The outlets of the multiple exhaust pipes are bent toward one end of the fixed pipe, and the bent end is angled to the right, so that the bent end of the exhaust pipe and the fixed pipe are set at a 45-degree angle in the transverse direction.

[0016] By setting up multiple exhaust pipes, the high-pressure gas from the annular exhaust box can be applied to the pipeline to clean impurities. At the same time, the bend of the exhaust pipe outlet towards the fixed pipe end causes the exhaust pipe to be pushed by the wind force, thereby moving the annular exhaust box and the annular fixed box. This automatically drives the device to move and detect flaws on the pipeline. Furthermore, the bend end of the exhaust pipe is set at a 45-degree angle to the fixed pipe in the lateral direction, so that the exhaust gas is discharged obliquely to the rear. This allows the exhaust pipe to not only move the device but also rotate automatically, thus making the impurity removal more comprehensive.

[0017] Preferably, two air pumps are installed on one side of the annular exhaust box, the air pumps are connected to the annular exhaust box, and the air pumps cooperate with the exhaust pipe.

[0018] By installing an air pump, a power source can be injected into the annular exhaust box, and then applied to the pipeline through the exhaust pipe.

[0019] Preferably, a plurality of locking blocks are fixedly installed on one side of the annular fixing box, and the locking blocks are slidably connected to the corresponding annular exhaust box.

[0020] By setting up the card block and sliding it with the annular exhaust box, the annular exhaust box can be positioned.

[0021] Preferably, one side of the annular fixing box is provided with an annular connecting hole, and one side of the annular exhaust box is provided with multiple air inlets, which are connected to the annular connecting hole.

[0022] The annular connecting hole and the air inlet hole are interconnected, allowing the annular fixed box and the annular exhaust box to be connected, so that the gas in the annular fixed box can be injected into the annular exhaust box at any time.

[0023] In summary, the technical effects and advantages of this utility model are as follows:

[0024] The sliding connection between the wedge groove and the movable shaft, and the sliding connection between the push rod and the fixed pipe, enable the moving drive ring to drive the roller to clamp and position the pipe, thereby facilitating the installation of the fixed pipe on the pipeline.

[0025] The exhaust duct is bent towards one end of the fixed duct, and the bent end is angled to the right, so that the bent end of the exhaust duct and the fixed duct are set at a 45-degree angle in the horizontal direction. Thus, when the exhaust duct is venting air, it can drive the annular exhaust box to rotate and also drive the device to move. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0027] Figure 2 This is a side view of the structure of this utility model;

[0028] Figure 3 This is a schematic diagram of the annular exhaust box structure of this utility model;

[0029] Figure 4 This is a schematic diagram of the annular fixing box structure of this utility model;

[0030] Figure 5 This is a schematic diagram of the transmission connection structure between the push plate and the push rod of this utility model.

[0031] In the picture:

[0032] 1. Fixed pipe; 2. Fixed ring; 3. Annular fixed box; 4. Installation positioning mechanism; 41. Drive ring; 42. Top rod; 43. Roller; 44. Push plate; 45. Wedge groove; 46. Movable shaft; 47. Cylinder; 5. Drive impurity removal mechanism; 51. Annular exhaust box; 52. Exhaust pipe; 53. Air pump; 54. Annular connecting hole; 55. Air inlet; 6. Locking block; 7. Mounting plate; 8. Flaw detector; 9. Vibration motor; 10. Tapping block. Detailed Implementation

[0033] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0034] Reference Figure 1-5 A non-destructive testing device for pipe welds includes a fixed pipe 1, a fixed ring 2 fixedly installed at one end of the fixed pipe 1, and an annular fixed box 3 fixedly installed at the other end of the fixed pipe 1.

[0035] The mounting positioning mechanism 4 includes two drive rings 41, which are slidably mounted on the outside of the fixed tube 1. Two cylinders 47 are fixedly mounted on one side of the fixed ring 2, and the pistons of the cylinders 47 are fixedly connected to the two drive rings 41.

[0036] The impurity removal mechanism 5 includes an annular exhaust box 51, which is rotatably mounted on one side of an annular fixed box 3. Two vibration motors 9 are fixedly mounted on one side of the annular exhaust box 51. A striking block 10 is mounted on the output shaft of the vibration motor 9. A mounting plate 7 is fixedly mounted on the annular exhaust box 51, and a flaw detector 8 is mounted on the mounting plate 7.

[0037] Reference Figure 1 and Figure 5 The installation and positioning mechanism 4 also includes eight push rods 42, which are slidably mounted on the fixed pipe 1. One end of each push rod 42 is rotatably connected to a roller 43, and the push rod 42 is connected to the corresponding drive ring 41. Four push plates 44 are fixedly mounted on one side of the drive ring 41. The push plates 44 have wedge-shaped grooves 45, and a movable shaft 46 is slidably connected to the inner wall of the wedge-shaped grooves 45. The movable shaft 46 is fixedly connected to the corresponding push rod 42. Through the sliding connection between the movable shaft 46 and the wedge-shaped grooves 45, the laterally moving drive ring 41 can push the push rods 42 to move through the push plates 44. With the setting of eight push rods 42 and the action of the rollers 43, the pipe can be pushed, thereby fixing the fixed pipe 1 on the pipe. At the same time, through the operation of two sets of four push rods 42, square and round pipes can be clamped and positioned simultaneously.

[0038] Reference Figure 3The impurity removal mechanism 5 also includes multiple exhaust pipes 52, which are fixedly installed inside the annular exhaust box 51. The outlets of the multiple exhaust pipes 52 are bent towards one end of the fixed pipe 1, and the bent end is angled to the right, so that the bent end of the exhaust pipe 52 and the fixed pipe 1 are set at a 45-degree angle in the horizontal direction. Through the arrangement of multiple exhaust pipes 52, the high-pressure gas of the annular exhaust box 51 can be applied to the pipeline to clean the impurities on the pipeline. At the same time, the bending of the outlet of the exhaust pipe 52 towards the fixed pipe 1 causes the exhaust pipe 52 to push the annular exhaust box 51 and the annular fixed box 3 to move under the reverse thrust of the wind, thereby automatically driving the device to move and detect flaws on the pipeline. The 45-degree angle between the bent end of the exhaust pipe 52 and the fixed pipe 1 in the horizontal direction causes the gas discharged from the exhaust pipe 52 to be angled to the rear, so that the exhaust pipe 52 not only drives the device to move, but also drives the exhaust pipe 52 to rotate automatically, thereby making the impurity removal more comprehensive.

[0039] Reference Figure 1 Two air pumps 53 are installed on one side of the annular exhaust box 51. The air pumps 53 are connected to the annular exhaust box 51 and cooperate with the exhaust pipe 52. An annular connecting hole 54 is opened on one side of the annular fixed box 3, and multiple air inlets 55 are opened on one side of the annular exhaust box 51. The air inlets 55 are connected to the annular connecting hole 54. Through the air pumps 53, a power source can be injected into the annular exhaust box 51 and act on the pipe through the exhaust pipe 52. Through the connection between the annular connecting hole 54 and the air inlets 55, the annular fixed box 3 and the annular exhaust box 51 are connected to each other, so that the gas in the annular fixed box 3 can be injected into the annular exhaust box 51 at any time.

[0040] Reference Figure 2 Multiple locking blocks 6 are fixedly installed on one side of the annular fixed box 3. The locking blocks 6 are slidably connected to the corresponding annular exhaust box 51. By setting the locking blocks 6 and sliding them with the annular exhaust box 51, the annular exhaust box 51 can be positioned.

[0041] Working principle: During operation, the fixed pipe 1 is placed on the outside of the pipeline. The two cylinders 47 are switched on, and their pistons drive the two drive rings 41 to move. The drive rings 41 then drive the push plate 44 to move. Through the sliding connection between the movable shaft 46 and the wedge groove 45, the laterally moving drive rings 41 can push the push rods 42 through the push plate 44. With the eight push rods 42 and the action of the rollers 43, the pipeline is pushed, thus fixing the fixed pipe 1 onto the pipeline. Simultaneously, the operation of two sets of four push rods 42 allows for the simultaneous clamping and positioning of square and round pipelines. Then, the air pump 53 is switched on, injecting gas into the annular fixed box 3. Through the interconnection between the annular connecting hole 54 and the air inlet 55, the annular fixed box 3 and the annular exhaust box are connected. The interconnectedness of the components 51 allows gas from the annular fixed box 3 to be injected into the annular exhaust box 51 at any time and discharged through the exhaust pipe 52. The arrangement of multiple exhaust pipes 52 enables the high-pressure gas from the annular exhaust box 51 to act on the pipeline, thereby cleaning impurities on the pipeline. Simultaneously, the bend of the exhaust pipe 52's outlet towards the fixed pipe 1 causes the exhaust pipe 52 to be pushed by the reverse force of the wind, thus moving the annular exhaust box 51 and the annular fixed box 3. This automatically drives the device to move and inspect the pipeline. Furthermore, the bend of the exhaust pipe 52 is set at a 45-degree angle to the fixed pipe 1 in the lateral direction, causing the gas discharged from the exhaust pipe 52 to be obliquely backward. This allows the exhaust pipe 52 to not only move the device but also automatically rotate, resulting in more comprehensive impurity removal.

[0042] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A device for non-destructive testing of a pipe weld, comprising a stationary pipe (1), characterised in that, One end of the fixed pipe (1) is fixedly installed with a fixed ring (2), and the other end of the fixed pipe (1) is fixedly installed with an annular fixed box (3); A positioning mechanism (4) is installed, comprising two driving rings (41), the two driving rings (41) are slidingly installed on the outside of the fixed pipe (1), one side of the fixed ring (2) is fixedly installed with two air cylinders (47), and the piston of the air cylinder (47) is fixedly connected with the two driving rings (41); A driving impurity removal mechanism (5) is installed, comprising an annular exhaust box (51), the annular exhaust box (51) is rotatably installed on one side of the annular fixed box (3), two vibration motors (9) are fixedly installed on one side of the annular exhaust box (51), a knocking block (10) is installed on the output shaft of the vibration motor (9), an installation plate (7) is fixedly installed on the annular exhaust box (51), and a flaw detector (8) is installed on the installation plate (7).

2. A device for non-destructive testing of a pipe weld according to claim 1, characterized in that The positioning mechanism (4) further comprises eight jack rods (42), the eight jack rods (42) are slidingly installed on the fixed pipe (1), one end of the jack rod (42) is rotatably connected with a roller (43), and the jack rod (42) is in transmission connection with the corresponding driving ring (41).

3. A device for non-destructive testing of a pipe weld according to claim 2, characterized in that One side of the driving ring (41) is fixedly installed with four push plates (44), the push plate (44) is provided with a wedge-shaped groove (45), the inner wall of the wedge-shaped groove (45) is slidingly connected with a movable shaft (46), and the movable shaft (46) is fixedly connected with the corresponding jack rod (42).

4. The apparatus of claim 1, wherein, The driving impurity removal mechanism (5) further comprises a plurality of exhaust pipes (52), the plurality of exhaust pipes (52) are fixedly installed on the inside of the annular exhaust box (51), the air outlets of the plurality of exhaust pipes (52) are bent towards one end of the fixed pipe (1), and the bent end is obliquely arranged to the right, so that the bent end of the exhaust pipe (52) and the fixed pipe (1) are arranged at an angle of forty-five degrees in the transverse direction.

5. A device for non-destructive testing of a pipe weld according to claim 4, characterized in that One side of the annular exhaust box (51) is provided with two air pumps (53), the air pump (53) and the annular exhaust box (51) are in communication, and the air pump (53) cooperates with the exhaust pipe (52).

6. A device for non-destructive testing of a pipe weld according to claim 5, characterized in that One side of the annular fixed box (3) is fixedly installed with a plurality of clamping blocks (6), and the clamping block (6) is slidingly connected with the corresponding annular exhaust box (51).

7. A pipeline weld non-destructive testing apparatus as defined in claim 6, wherein, One side of the annular fixed box (3) is provided with an annular connecting hole (54), and one side of the annular exhaust box (51) is provided with a plurality of air inlet holes (55), the air inlet hole (55) and the annular connecting hole (54) are in communication.

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