An ultrasonic testing device for boiler tube inspection

Abstract

This utility model discloses an ultrasonic testing device for boiler pipeline flaw detection, including a rotating sleeve. The testing device body is located at the top side of the rotating sleeve. A testing groove is formed at the top of the rotating sleeve, and a fitting groove is formed inside the rotating sleeve. Rotating collars are located at both ends of the rotating sleeve. A first limiting ring is movably connected to one end of the rotating sleeve via the rotating collar, and a second limiting ring is movably connected to the other end of the rotating sleeve via the rotating collar. This utility model, through the rotating sleeve, testing device body, testing groove, fitting groove, rotating collar, first limiting ring, second limiting ring, first damping rubber ring, second damping rubber ring, and limiting ball, enables the device to perform ultrasonic flaw detection operations with a more stable connection to the boiler pipeline. In actual use, the operator first places the entire rotating sleeve onto the boiler pipeline.

Description

Technical Field

[0001] This utility model belongs to the field of boiler pipeline technology, specifically relating to an ultrasonic testing device for boiler pipeline flaw detection. Background Technology

[0002] Boiler tubes are steel tubes that are open at both ends and have a hollow cross section. Their length is relatively large compared to their circumference. According to the production method, they can be divided into seamless steel pipes and welded steel pipes. The specifications of steel pipes are expressed by their external dimensions and wall thickness. Their size range is very wide, from very small diameter capillary tubes to large diameter pipes with diameters of several meters. Steel pipes can be used for pipelines, thermal equipment, machinery industry, petroleum geological exploration, containers, chemical industry and special purposes.

[0003] In response, Chinese patent application number CN 217931530 U discloses an ultrasonic testing device for boiler pipe flaw detection, comprising a testing device body, a pair of fixing mechanisms, and a balancing mechanism. The fixing mechanisms are connected to both sides of the testing device body. Each fixing mechanism includes a storage compartment containing a fixing strap. A balancing mechanism is located on the lower side of the testing device body, with the fixing strap passing through the storage compartment. A fixing shaft is located within the storage compartment, and a rotating spring connects the fixing shaft and the fixing strap. A fixing buckle is connected to the storage compartment, and a snap fastener connects the fixing strap and the fixing buckle. The balancing mechanism includes a balancing plate, with a friction pad connected to the side of the balancing plate closest to the pipe being tested. This invention, through the design of the corresponding mechanisms on the ultrasonic testing device, reduces the possibility of vibration when the ultrasonic testing device is in contact with the pipe, improves the accuracy of the ultrasonic testing device, increases the efficiency of flaw detection, reduces the occurrence of safety accidents, and improves the safety of surrounding personnel.

[0004] However, when performing ultrasonic testing for boiler pipe flaw detection, this structure is limited by its own structure and can only perform direct rotational movement as a whole. It cannot perform more suitable limiting rotation operations on the side of the boiler pipe, and it cannot provide stable damping and limiting protection during rotation. At the same time, the equipment cannot perform more stable positioning and detection operations between boiler pipes, which cannot meet the needs of daily use. Therefore, improving and perfecting the above-mentioned problems has become an urgent issue to be solved. Utility Model Content

[0005] The purpose of this utility model is to provide an ultrasonic testing device for boiler pipe flaw detection, in order to solve the problem that existing structures, due to their own structural limitations, can only adopt direct rotational movement when performing ultrasonic testing operations for boiler pipe flaw detection. They cannot perform more suitable limiting rotation operations on the side of the boiler pipe, and cannot provide stable damping and limiting protection during rotation. At the same time, the device cannot perform more stable positioning and detection operations between boiler pipes, which cannot meet the needs of daily use.

[0006] To achieve the above objectives, the present invention provides the following technical solution: an ultrasonic testing device for boiler pipe flaw detection, comprising a rotating sleeve, a testing device body being provided at the top side of the rotating sleeve, a testing groove being provided at the top of the rotating sleeve, a connecting groove being provided inside the rotating sleeve, and rotating collars being provided at both ends of the rotating sleeve.

[0007] The first limiting ring and the second limiting ring are connected to one end of the rotating sleeve via a rotating shaft collar.

[0008] Preferably, an air supply frame is fixedly connected to the top of the first limiting ring and the second limiting ring, and an air control pump is provided at the top of the air supply frame, with air inlet slots provided at both ends of the air control pump.

[0009] Preferably, the inner wall of the first limiting ring is provided with a contraction ring airbag, and the inner wall of the contraction ring airbag is fixedly connected with an annular pressure ring.

[0010] Preferably, the inner top wall of the first limiting ring is provided with a top pressure airbag, and the bottom end of the top pressure airbag is fixedly connected to a top pressure plate.

[0011] Preferably, a first damping rubber ring is provided on one end edge of the first limiting ring, and a second damping rubber ring is provided on the edge of the rotating shaft ring.

[0012] Preferably, the inner wall of the socket groove is uniformly provided with limiting balls.

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

[0014] 1. This ultrasonic testing equipment for boiler pipeline flaw detection, through its rotating sleeve, testing equipment body, testing groove, connecting groove, rotating collar, first limiting ring, second limiting ring, first damping rubber ring, second damping rubber ring, and limiting ball, enables the equipment to perform ultrasonic flaw detection operations with a more stable connection to the boiler pipeline. In actual use, the operator first places the rotating sleeve entirely onto the boiler pipeline, and then drives the rotating sleeve to rotate between the first and second limiting rings through the rotating collars at both ends of the rotating sleeve. The adjustment operation allows the inspection equipment body on the side of the rotating sleeve to rotate rapidly around the boiler pipe. Rapid ultrasonic testing of the boiler pipe is then performed at the inspection slot of the rotating sleeve. Simultaneously, during rotation, damping adjustment is achieved through the second damping rubber ring on the edge of the rotating shaft collar and the first damping rubber ring at one end of the first and second limiting rings. Furthermore, the limiting ball on the inner wall of the sleeve groove can also roll and limit the movement of the pipe side, ensuring stable rotational inspection and demonstrating the practicality of the equipment design.

[0015] 2. This ultrasonic testing equipment for boiler pipeline flaw detection, through its rotating frame, first limiting ring, second limiting ring, gas supply frame, control pump, air inlet mesh groove, contraction ring airbag, annular pressure ring, top pressure airbag, and top pressure plate, further improves the overall performance of the equipment. During daily use, operators can start the control pump at the top of the gas supply frame to draw air from the air inlet mesh grooves at both ends. The gas supply frame then synchronously inflates the first and second limiting rings, causing the contraction ring airbags inside to drive the annular pressure ring on the inner wall to stably press against both ends of the pipeline inspection position, thus stabilizing the entire equipment on the pipeline. Simultaneously, the gas supply frame can inflate the internal top pressure airbag. The top pressure plate at one end of the top pressure airbag abuts against the top of the testing equipment body, providing overall positioning and fixing for the rotating frame and the testing equipment body, ensuring stable positioning during daily movement and demonstrating the comprehensiveness of the equipment design. Attached Figure Description

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

[0017] Figure 2 This is an overall schematic diagram of the rotating sleeve structure of this utility model;

[0018] Figure 3 This is a schematic diagram of the overall structure of the first limiting ring of this utility model;

[0019] Figure 4 This utility model Figure 1 An enlarged schematic diagram of the structure at point A in the middle.

[0020] In the diagram: 1. Rotating sleeve; 2. Detection equipment body; 3. Detection slot; 4. Sleeve slot; 5. Rotating collar; 6. First limiting ring; 7. Second limiting ring; 8. Gas delivery frame; 9. Air control pump; 10. Air inlet mesh slot; 11. Contraction ring airbag; 12. Annular pressure ring; 13. Top pressure airbag; 14. Top pressure plate; 15. First damping rubber ring; 16. Second damping rubber ring; 17. Limiting ball. 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 protection scope of the present utility model.

[0022] This utility model provides an ultrasonic testing device for boiler pipe flaw detection, as shown in the figure. It includes a rotating sleeve 1, a testing device body 2 located at the top side of the rotating sleeve 1, a testing groove 3 at the top of the rotating sleeve 1, a connecting groove 4 inside the rotating sleeve 1, rotating collars 5 at both ends of the rotating sleeve 1, a first damping rubber ring 15 at one edge of a first limiting ring 6, a second damping rubber ring 16 at the edge of the rotating collar 5, and limiting balls 17 evenly distributed on the inner wall of the connecting groove 4. Through the rotating collars 5 at both ends of the rotating sleeve 1, the rotating sleeve 1 is driven to rotate and adjust between the first limiting ring 6 and the second limiting ring 7. This allows the testing device body 2 on the side of the rotating sleeve 1 to rotate and adjust rapidly around the boiler pipe, enabling rapid ultrasonic flaw detection of the boiler pipe at the testing groove 3 of the rotating sleeve 1.

[0023] A first limiting ring 6 and a second limiting ring 7 are connected to one end of a rotating sleeve 1 via a rotating shaft ring 5, and the other end of the rotating sleeve 1 is connected to a second limiting ring 7 via a rotating shaft ring 5. An air delivery frame 8 is fixedly connected to the top of the first limiting ring 6 and the second limiting ring 7. A control air pump 9 is installed at the top of the air delivery frame 8, and air inlet slots 10 are installed at both ends of the control air pump 9. A contraction ring airbag 11 is installed on the inner wall of the first limiting ring 6, and an annular pressure ring is fixedly connected to the inner wall of the contraction ring airbag 11. 12. A top pressure airbag 13 is provided on the inner top wall of the first limiting ring 6. A top pressure plate 14 is fixedly connected to the bottom end of the top pressure airbag 13. The air pump 9 at the top of the air delivery frame 8 is started, so that it draws air from the air inlet mesh grooves 10 at both ends. Then, the air delivery frame 8 performs synchronous inflation operation into the interior of the first limiting ring 6 and the second limiting ring 7, so that the contraction ring airbag 11 inside the first limiting ring 6 and the second limiting ring 7 drives the annular pressure ring 12 on the inner wall to stably press against both ends of the pipeline detection position.

[0024] Working principle: The operator first places the rotating sleeve 1 entirely onto the boiler pipe. Then, through the rotating collars 5 at both ends of the rotating sleeve 1, the rotating sleeve 1 is rotated between the first limiting ring 6 and the second limiting ring 7. This allows the detection device body 2 on the side of the rotating sleeve 1 to rotate rapidly around the boiler pipe, performing rapid ultrasonic flaw detection on the boiler pipe at the detection groove 3 of the rotating sleeve 1. Simultaneously, during rotation, the rotating sleeve 1 can be damped by the second damping rubber ring 16 on the edge of the rotating collar 5 and the first damping rubber ring 15 at one end of the first limiting ring 6 and the second limiting ring 7. Furthermore, the limiting ball 17 on the inner wall of the sleeve groove 4 can also roll and limit the movement of the device, ensuring the rotation... To ensure stable operation of the rotating detection, during daily use, the operator can start the air pump 9 at the top of the air supply frame 8 to draw air from the air inlet slots 10 at both ends. Then, the air supply frame 8 synchronously inflates the first limiting ring 6 and the second limiting ring 7, causing the contraction ring airbag 11 inside the first limiting ring 6 and the second limiting ring 7 to drive the annular pressure ring 12 on the inner wall to stably press against both ends of the pipeline detection position, thus stabilizing the overall equipment on the pipeline. At the same time, the air supply frame 8 can also inflate the internal pressure airbag 13. The pressure plate 14 at one end of the pressure airbag 13 is attached to the top of the detection equipment body 2, thus limiting and fixing the rotating sleeve 1 and the detection equipment body 2 as a whole, ensuring stable positioning during daily movement.

[0025] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. 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. An ultrasonic testing apparatus for boiler tube inspection, comprising a rotating sleeve (1), characterized in that: The rotating sleeve (1) has a detection device body (2) on its side top, a detection groove (3) on its top, a sleeve groove (4) inside, and rotating collars (5) at both ends. The first limiting ring (6) and the second limiting ring (7) are connected to one end of the rotating sleeve (1) via a rotating shaft ring (5) and the other end of the rotating sleeve (1) via a rotating shaft ring (5).

2. The ultrasonic testing apparatus for boiler tube inspection according to claim 1, characterized in that: The top ends of the first limiting ring (6) and the second limiting ring (7) are fixedly connected to the gas delivery frame (8), the top end of the gas delivery frame (8) is provided with a control gas pump (9), and the two ends of the control gas pump (9) are provided with air inlet mesh grooves (10).

3. The ultrasonic testing apparatus for boiler tube inspection according to claim 1, wherein: The inner wall of the first limiting ring (6) is provided with a contraction ring airbag (11), and the inner wall of the contraction ring airbag (11) is fixedly connected with an annular pressure ring (12).

4. The ultrasonic testing apparatus for boiler tube inspection according to claim 1, wherein: The inner top wall of the first limiting ring (6) is provided with a top pressure airbag (13), and the bottom end of the top pressure airbag (13) is fixedly connected to a top pressure plate (14).

5. The ultrasonic testing equipment for boiler pipeline flaw detection according to claim 1, characterized in that: The first limiting ring (6) has a first damping rubber ring (15) on one end edge, and the rotating shaft ring (5) has a second damping rubber ring (16) on its edge.

6. The ultrasonic testing equipment for boiler pipeline flaw detection according to claim 1, characterized in that: The inner wall of the socket groove (4) is uniformly provided with limiting balls (17).

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