Heating furnace pipeline corrosion detection device and method

Abstract

The present application provides a device and method for detecting corrosion in heating furnace pipelines, which relate to the field of pipeline detection technology. The device comprises a main body; a detection mechanism for performing contact ultrasonic thickness measurement on the interior of the pipeline; and a moving mechanism for controlling the movement of the main body and the detection mechanism on the inner wall of the pipeline. The device and method for detecting corrosion in heating furnace pipelines, through the mutual combination of the detection mechanism and the moving mechanism, can achieve overall rotational lateral movement of the detection head, thereby driving the detection head to move deep into the interior of the pipeline for abutment-type contact ultrasonic detection. Without the need for handheld operation by an operator, the entire device detects from the interior of the pipeline, thereby increasing the accuracy of the detection data.

Description

Technical Field

[0001] The present invention relates to the technical field of pipeline detection, and in particular to a device and method for detecting corrosion of heating furnace pipelines. Background Art

[0002] In existing industrial production and life, pipelines can be seen everywhere. Pipelines have brought great convenience to people's lives. However, due to the complex working environment of pipelines, pipelines will corrode during long-term use. Especially for some pipelines with higher pressure, excessive corrosion will inevitably cause damage to the pipelines. Therefore, in actual use, people will regularly use detection equipment to inspect pipelines. Ultrasonic detection equipment is a commonly used detection equipment in pipeline inspection. Ultrasonic detection equipment mainly uses the principle of ultrasonic flaw detection to perform pipeline inspection.

[0003] At present, when the pipelines of the heating furnace are in use, a certain degree of flue gas corrosion may occur inside after long-term use. If it is not checked in time, it is easy to cause damage to the pipeline, resulting in gas leakage, and ultimately causing serious damage to the equipment. In the existing technology, detection and inspection are generally carried out based on wall thickness, and ultrasound is often used to contact the surface of the pipeline and measure its thickness using ultrasound to determine the corrosion state of the pipeline. However, this method is to detect from the outside. If a certain degree of impurities are attached to the internal pipeline, it will affect the value of the ultrasonic detection. Therefore, detection is generally carried out from the inside of the pipeline, which has higher accuracy. However, the current pipeline is laid for a long time, and the operator cannot directly enter the pipeline, or entering the pipeline is cumbersome, resulting in the problem of obstruction of the detection process. Therefore, a heating furnace pipeline corrosion detection device and method are proposed to solve the above-mentioned problems. Summary of the Invention

[0004] In response to the shortcomings of the existing technology, the present invention provides a device and method for detecting corrosion of heating furnace pipelines, which solves the problems in the existing technology of detecting the corrosion degree of heating furnace pipelines, such as inaccurate values detected from the outside by using ultrasound, inability to directly penetrate deep into the inside, and the adhesion of impurities inside affecting the accuracy of the detection values.

[0005] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: a heating furnace pipeline corrosion detection device, comprising a main body; a detection mechanism for performing contact ultrasonic thickness measurement on the interior of the pipeline; a moving mechanism for controlling the movement of the main body and the detection mechanism on the inner wall of the pipeline; the moving mechanism comprises a driving device and a resistance device, the driving device drives the resistance device to perform abutment-type contact movement in pipelines of different diameters, the moving mechanism is arranged inside the main body, and the detection mechanism is arranged on the main body, and the detection mechanism can follow the movement of the moving mechanism, while forming abutment detection thickness in pipelines of different diameters and cleaning impurities on the internal pipe wall.

[0006] Furthermore, the main body is connected to a fixed sleeve via a connecting column, one end of the fixed sleeve is rotatably connected to a rotating sleeve, and the detection mechanism is connected to the rotating sleeve.

[0007] Furthermore, the detection mechanism includes a resistance rod, one end of which is rotatably connected to a support, the resistance rod is connected to a rotating sleeve, a cleaning plate is connected to the support, and a detection head is provided on the cleaning plate.

[0008] Furthermore, the driving device includes a driving motor, which is fixed inside the main body. The output end of the driving motor is connected to a worm, and one end of the worm is connected to a fixed shaft.

[0009] Furthermore, one end of the fixed shaft is connected to a top plate, the fixed shaft is connected to the rotating sleeve through a connecting rod, the middle part of the resistance rod is rotatably connected to the rotating sleeve, the left end of the resistance rod is abutted against a pressing plate, the pressing plate is slidably connected to the fixed shaft, a pressure spring is provided between the top plate and the pressing plate, and a blade is fixedly connected to the resistance rod.

[0010] Furthermore, the detection mechanism also includes a shooting device, which includes a fixed frame, the fixed frame is fixed on the cleaning plate, a CCD camera is slidably connected to the fixed frame, the bottom of the detection head is fixedly connected to the base plate, the bottom of the base plate is connected to the fixed frame through a small spring, and the upper and lower parts of the base plate are both equipped with switch contacts for controlling the shooting of the CCD camera.

[0011] Furthermore, the moving mechanism includes a worm gear, which is meshed with a worm, and the axis of the worm gear is fixedly connected to a connecting shaft, and both ends of the connecting shaft are rotatably connected to the main body, and the connecting shaft is also fixedly connected to a pulley 2, and the pulley 2 is connected to the pulley 1 through a belt transmission, and the side of the pulley 1 is fixedly connected to a roller, and the axis of the roller is rotatably connected to a parallel frame 1 through a connecting rod, and one end of the parallel frame 1 is rotatably connected to the connecting shaft, and the parallel frame 1 is rotatably connected to a parallel frame 2 through a parallel rod, and both sides of the parallel frame 2 are rotatably connected to the rear wheels, and the bottom of the parallel frame 2 is rotatably connected to the main body, and the parallel frame 1 is connected to a tension spring, and one end of the tension spring is connected to a fixed sleeve.

[0012] Furthermore, it also includes a wire-releasing and winding device, which includes a clamping shaft, which is rotatably connected to the inside of the main body, a wire wound around the clamping shaft, and the detection head is electrically connected to the controller through the wire. A coil spring is provided inside the main body, one end of the coil spring is connected to the clamping shaft, and the other end of the coil spring is connected to the main body.

[0013] A method for detecting corrosion of heating furnace pipelines.

[0014] Step A: Adaptive support, using the oblique stretching of the tension spring to control the parallel frame 1 and the parallel frame 2 to move in a parallelogram, ensuring that the roller and the rear wheel are in parallel contact with the inner wall of the pipe;

[0015] Step B: Move. The rotation of the drive motor will drive the rotation of the worm, which in turn drives the three worm wheels to rotate. The belt transmission will drive the rotation of the roller, thereby generating driving force for the entire device to move.

[0016] Step C: Cleaning: The rotation of the driving motor will drive the rotation of the fixed shaft, and then drive the rotating sleeve to rotate. The rotating sleeve will drive the interference rod and the cleaning plate to rotate. The rotation of the cleaning plate will rotate and clean the inner wall of the pipe;

[0017] Step D: Rotational movement detection. The movement of the equipment and the rotation of the cleaning plate drive the probe to rotate and move laterally on the inner wall of the pipe. The operator controls the start and stop of the probe according to the buttons of the controller, and finally performs abutment-type rotational thickness measurement in the pipe.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] Compared with the prior art, the heating furnace pipeline corrosion detection device and method provided by the present invention have the following beneficial effects:

[0020] 1. The heating furnace pipeline corrosion detection device and method, through the mutual combination of the detection mechanism and the moving mechanism, can realize the overall rotation and lateral movement of the detection head, thereby driving the detection head to move deep into the interior of the pipeline to perform abutment-type contact ultrasonic detection. No handheld operation by the operator is required, and the entire device detects from the inside of the pipeline, thereby increasing the accuracy of the detection data.

[0021] 2. The heating furnace pipe corrosion detection device and method can clean impurities attached to the inner wall by using a cleaning plate when the entire device rotates, and the detection head at the rear position further improves the detection head from being affected by the attachment of impurities during detection, thereby preventing detection errors.

[0022] 3. The heating furnace pipeline corrosion detection device and method uses a CCD camera to control the CCD camera to take pictures whenever the cleaning plate fluctuates. Because the fluctuating state may be the adhesion of impurities or pits after corrosion, the overall fluctuating process is used to directly capture the position and transmit it to the rear operator, who will judge the position, thereby facilitating the operator to check the situation inside the pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a schematic diagram of the overall structure of a heating furnace pipeline corrosion detection device proposed by the present invention;

[0024] Figure 2 This is a schematic diagram of the connection between the driving device and the moving device of the heating furnace pipeline corrosion detection device proposed by the present invention;

[0025] Figure 3 This is a schematic diagram of the detection mechanism of a heating furnace pipeline corrosion detection device proposed by the present invention;

[0026] Figure 4 This is a schematic diagram of the cleaning plate structure of a heating furnace pipeline corrosion detection device proposed by the present invention;

[0027] Figure 5 This is a schematic diagram of the structure of a photographing device for detecting corrosion of heating furnace pipes proposed by the present invention;

[0028] Figure 6 This is a schematic diagram of the connection of a tension spring in a heating furnace pipeline corrosion detection device proposed by the present invention;

[0029] Figure 7 This is a schematic diagram of a winding device of a heating furnace pipeline corrosion detection device proposed by the present invention.

[0030] In the figure: 1. Main body; 101. Fixed sleeve; 102. Rotating sleeve; 103. Pressing piece; 104. Top piece; 105. Pressure spring; 2. Detection mechanism; 201. Contact rod; 202. Blade; 203. Cleaning plate; 204. Support; 205. Detection head; 2051. Fixed frame; 2052. CCD camera; 2053. Bottom plate; 2054. Small spring; 2055. Switch contact; 206 , wire; 207, clamping shaft; 208, coil spring; 209, controller; 3, connecting column; 4, moving mechanism; 401, driving motor; 402, worm; 403, worm gear; 404, parallel frame 1; 405, parallel frame 2; 406, roller; 407, pulley 1; 408, pulley 2; 409, connecting shaft; 410, tension spring; 411, fixed shaft; 412, parallel rod; 413, rear wheel. DETAILED DESCRIPTION

[0031] To make the purpose, technical solutions and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them.

[0032] Example 1

[0033] See also Figures 1 to 7 A heating furnace pipeline corrosion detection device includes a main body 1; a detection mechanism 2, which is used to perform contact ultrasonic thickness measurement on the inside of the pipeline; a moving mechanism 4, which is used to control the movement of the main body 1 and the detection mechanism 2 on the inner wall of the pipeline; the moving mechanism 4 includes a driving device and a resistance device, and the driving device drives the resistance device to perform pressure contact movement in pipelines of different diameters.

[0034] In this embodiment, the main body 1 is connected to the fixed sleeve 101 through the connecting column 3 , one end of the fixed sleeve 101 is rotatably connected to the rotating sleeve 102 , and the detection mechanism 2 is connected to the rotating sleeve 102 .

[0035] Furthermore, the detection mechanism 2 includes a resisting rod 201, one end of which is rotatably connected to a support 204. The resisting rod 201 is connected to the rotating sleeve 102. A cleaning plate 203 is connected to the support 204, and a detection head 205 is provided on the cleaning plate 203. The drive device includes a drive motor 401, which is fixed inside the main body 1. The output end of the drive motor 401 is connected to a worm 402, and one end of the worm 402 is connected to a fixed shaft 411. The rotation of the drive motor 401 also drives the rotation of the fixed shaft 411, and the rotation of the fixed shaft 411 drives the rotation of the rotating sleeve 102. Therefore, the resisting rod 201 connected to it will rotate about the center of the rotating sleeve 102. The detection head 205 at the rear will rotate along with the cleaning plate 203 after cleaning the impurities, thereby performing a rotation-forward automatic detection of the pipe wall.

[0036] Furthermore, one end of fixed shaft 411 is connected with top plate 104, fixed shaft 411 is connected with rotating sleeve 102 by connecting rod, the middle part of resisting rod 201 is rotated and connected on rotating sleeve 102, the left end of resisting rod 201 abuts pressing plate 103, pressing plate 103 is slidably connected on fixed shaft 411, and is provided with pressing spring 105 between top plate 104 and pressing plate 103, and is fixedly connected with blade 202 on resisting rod 201. The effect of blade 202 is that the smoke of inside is rotated and cleaned, avoids the smoke in heating furnace pipeline to cause unclear taking a picture. Will provide lateral movement force on pressing plate 103 by the pressing spring 105 that is provided with, and pressing plate 103 will promote resisting rod 201 and do lever motion, and then control cleaning plate 203 to be attached on tube wall all the time, can also carry out elastic contact type detection while cleaning. Furthermore, when the abutment rod 201 rotates, the pressing piece 103 will not interfere with the motion of the abutment rod 201 . Since the abutment rod 201 is in an abutting state, the abutment rod 201 will rotate and slide on the side of the pressing piece 103 .

[0037] In addition, the detection mechanism 2 also includes a shooting device, which includes a fixed frame 2051, the fixed frame 2051 is fixed on the cleaning plate 203, and a CCD camera 2052 is slidably connected to the fixed frame 2051. The bottom of the detection head 205 is fixedly connected to the base plate 2053, and the bottom of the base plate 2053 is connected to the fixed frame 2051 through a small spring 2054. The upper and lower parts of the base plate 2053 are both equipped with switch contacts 2055 for controlling the shooting of the CCD camera 2052. The entire device takes into account the need to take pictures and keep records of the corroded areas, so a CCD camera 2052 is set up. When the cleaning plate 203 generates a large vibration during rotation or movement, it will drive the detection head 205 and the base plate 2053 to move up and down, and squeeze the small spring 2054, thereby driving the switch contacts 2055 at the upper and lower positions of the base plate 2053 to move up and down, and then contact the fixing frame 2051 or the bottom of the CCD camera 2052, and finally trigger the button of the CCD camera 2052 to shoot. When the entire device is in normal movement, the CCD camera 2052 will not record. It will only shoot the unknown when the fluctuation triggers the switch.

[0038] In addition, the moving mechanism 4 includes a worm gear 403, which is engaged with the worm 402. The axis of the worm gear 403 is fixedly connected to the connecting shaft 409, and both ends of the connecting shaft 409 are rotatably connected to the main body 1. The connecting shaft 409 is also fixedly connected to the pulley 2 408, which is connected to the pulley 1 407 through a belt. The side of the pulley 1 407 is fixedly connected to the roller 406, and the axis of the roller 406 is rotatably connected to the parallel frame 1 404 through a connecting rod. One end of the parallel frame 1 404 is rotatably connected to the connecting shaft 409. The parallel frame 1 404 is rotatably connected to the parallel frame 2 405 through a parallel rod 412, and the two sides of the parallel frame 2 405 are rotatably connected to the rear wheels 413. The rotation of the driving motor 401 will drive the rotation of the worm 402, and the rotation of the worm 402 will drive the rotation of the worm wheel 403, and then drive the connecting shaft 409 to rotate, and the connecting shaft 409 will drive the rotation of the pulley 2 408, and the belt transmission will drive the pulley 1 407 and the roller 406 to rotate, and finally the roller 406 is used as the driving force to drive the entire device forward. The bottom of the parallel frame 2 405 is rotatably connected to the main body 1, and the parallel frame 1 404 is connected to a tension spring 410, and one end of the tension spring 410 is connected to the fixed sleeve 101. The three tension springs 410 are stretched to drive the parallel frame 1 404 and the parallel frame 2 405 to move in a parallelogram shape, thereby controlling the roller 406 and the rear wheel 413 to always adhere to the pipe wall. Moreover, the tension springs 410 are in a stretchable state, so the parallel frame 1 404 and the parallel frame 2 405 can be adaptively adjusted according to the diameter of the pipe wall, so that the roller 406 and the rear wheel 413 are against pipes of different diameters.

[0039] It is worth noting that it also includes a wire-releasing and winding device, which includes a clamping shaft 207, which is rotatably connected to the inside of the main body 1, and a wire 206 is wound around the clamping shaft 207. The detection head 205 is electrically connected to the controller 209 through the wire 206. A coil spring 208 is provided inside the main body 1, and one end of the coil spring 208 is connected to the clamping shaft 207, and the other end of the coil spring 208 is connected to the main body 1. When the device moves forward, it will pull the card shaft 207 to rotate and pay out the line, because the detection head 205 needs to be connected to the controller 209 through the wire 206 to transmit the data back to the terminal, and the operator can control the real-time detection of the detection head 205 through the button of the controller 209 according to the distance of the pay-out, and finally form a segmented detection. The purpose of the coil spring 208 is to prevent it from being entangled with the wire 206 when the device returns. Therefore, when the device returns, the coil spring 208 will also rely on elastic force to rewind the wire 206. The overall principle is similar to the contraction and expansion of the tape measure. The operator can also directly measure the distance the device has moved based on the length of the pay-out.

[0040] Example 2

[0041] A method for detecting corrosion of heating furnace pipelines;

[0042] Step A: Adaptive support, using the oblique stretching of the tension spring 410 to control the parallel frame 1 404 and the parallel frame 2 405 to move in a parallelogram, ensuring that the roller 406 and the rear wheel 413 are in parallel contact with the inner wall of the pipe;

[0043] Step B: Movement: The rotation of the drive motor 401 will drive the rotation of the worm 402, which in turn drives the three worm wheels 403 to rotate. The belt transmission will drive the rotation of the roller 406, thereby generating driving force for the entire device to move;

[0044] Step C: Cleaning: The rotation of the driving motor 401 will drive the rotation of the fixed shaft 411, and then drive the rotating sleeve 102 to rotate. The rotating sleeve 102 will drive the interference rod 201 and the cleaning plate 203 to rotate. The rotation of the cleaning plate 203 will rotate and clean the inner wall of the pipe;

[0045] Step D: Rotational movement detection. The movement of the equipment and the rotation of the cleaning plate 203 drive the detection head 205 to rotate and move laterally on the inner wall of the pipe. The operator controls the start and stop of the detection head 205 according to the button of the controller 209, and finally performs abutment-type movement and rotation-type thickness measurement in the pipe.

[0046] The working principle is that the operator first needs to place the entire equipment at the position of the heating furnace pipe mouth, and then through the stretching of the three tension springs 410, the parallel frame 1 404 and the parallel frame 2 405 will be driven to move in a parallelogram, thereby controlling the roller 406 and the rear wheel 413 to always fit against the pipe wall. In addition, the tension spring 410 is in a stretchable state, so the parallel frame 1 404 and the parallel frame 2 405 can be adaptively adjusted according to the diameter of the pipe wall, so that the roller 406 and the rear wheel 413 are against pipes of different diameters. Then, the rotation of the drive motor 401 will drive the rotation of the worm 402, and the rotation of the worm 402 will drive the rotation of the worm wheel 403, and then drive the connecting shaft 409 to rotate, and the connecting shaft 409 will drive the rotation of the pulley 2 408, and the belt transmission will drive the pulley 1 407 and the roller 406 to rotate, and finally the roller 406 is used as the driving force to drive the entire device forward, and the entire moving mechanism 4 is provided with three groups, distributed in an array with the center of the main body 1, and the support of the triangular position can greatly ensure the stability of the equipment during movement. At the same time, the rotation of the driving motor 401 will also drive the rotation of the fixed shaft 411, and the rotation of the fixed shaft 411 will drive the rotation of the rotating sleeve 102, so the interference rod 201 connected thereto will rotate with the center of the rotating sleeve 102, and finally drive the cleaning plate 203 to rotate, and the three surfaces of the cleaning plate 203 are provided with grooves to clean impurities in the forward direction and the circumferential direction, and the detection head 205 at the rear will follow the cleaning plate 203 that has cleaned the impurities to rotate, and then perform a rotational forward automatic detection of the pipe wall. The entire device takes into account the need to take pictures and keep records of the corroded areas, so a CCD camera 2052 is set up. When the cleaning plate 203 generates a large vibration during rotation or movement, it will drive the detection head 205 and the base plate 2053 to move up and down, and squeeze the small spring 2054, thereby driving the switch contacts 2055 at the upper and lower positions of the base plate 2053 to move up and down, and then contact the fixing frame 2051 or the bottom of the CCD camera 2052, and finally trigger the button shooting of the CCD camera 2052. Because the detection head 205 also rotates when the cleaning plate 203 rotates, the small spring 2054 can also always provide elastic force to keep the detection head 205 against the pipe wall to achieve ultrasonic detection. If the fluctuation generated when the detection head 205 abuts during rotation or movement is large, the pipe wall may be in a state of corrosion or depression. Therefore, according to this situation, the fluctuation position can be photographed and sampled, and transmitted to the operator at the rear for analysis, which is convenient for later maintenance and repair. When the detection is completed, the driving motor 401 can be controlled to reverse, thereby driving the entire device to move in the opposite direction and achieve automatic retraction and return.

[0047] Those skilled in the art can clearly understand that, for the convenience and brevity of description, the specific working process of the described module can refer to the corresponding process in the aforementioned method embodiment, and will not be repeated here.

[0048] While 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 these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A heating furnace pipeline corrosion detection device, characterized in that: include Subject (1); A detection mechanism (2) is used for performing contact ultrasonic thickness measurement on the interior of the pipeline; A moving mechanism (4) is used to control the movement of the main body (1) and the detection mechanism (2) on the inner wall of the pipe; The moving mechanism (4) includes a driving device and a resistance device, the driving device drives the resistance device to perform a resistance-type contact movement in pipes of different diameters, the moving mechanism (4) is arranged inside the main body (1), and the detection mechanism (2) is arranged on the main body (1), and the detection mechanism (2) can follow the movement of the moving mechanism (4) while forming a resistance detection thickness in pipes of different diameters and cleaning impurities on the internal pipe wall; The main body (1) is connected to a fixed sleeve (101) via a connecting column (3); one end of the fixed sleeve (101) is rotatably connected to a rotating sleeve (102); and the detection mechanism (2) is connected to the rotating sleeve (102); The detection mechanism (2) includes a resisting rod (201), one end of the resisting rod (201) is rotatably connected to a support (204), the resisting rod (201) is connected to the rotating sleeve (102), a cleaning plate (203) is connected to the support (204), and a detection head (205) is provided on the cleaning plate (203); The driving device comprises a driving motor (401), the driving motor (401) is fixed inside the main body (1), the output end of the driving motor (401) is connected to a worm (402), and one end of the worm (402) is connected to a fixed shaft (411); One end of the fixed shaft (411) is connected to a top plate (104), the fixed shaft (411) is connected to the rotating sleeve (102) via a connecting rod, the middle portion of the resisting rod (201) is rotatably connected to the rotating sleeve (102), the left end of the resisting rod (201) is in contact with a pressing plate (103), the pressing plate (103) is slidably connected to the fixed shaft (411), a pressing spring (105) is provided between the top plate (104) and the pressing plate (103), and the blade (202) is fixedly connected to the resisting rod (201); The detection mechanism (2) further comprises a photographing device, the photographing device comprising a fixing frame (2051), the fixing frame (2051) being fixed on the cleaning plate (203), a CCD camera (2052) being slidably connected to the fixing frame (2051), a bottom plate (2053) being fixedly connected to the bottom of the detection head (205), the bottom of the bottom plate (2053) being connected to the fixing frame (2051) via a small spring (2054), and switch contacts (2055) for controlling the photographing of the CCD camera (2052) being installed on both the upper and lower parts of the bottom plate (2053).

2. The heating furnace pipeline corrosion detection device according to claim 1, characterized in that: The moving mechanism includes a worm wheel (403), the worm wheel (403) is meshed with the worm (402), the axis of the worm wheel (403) is fixedly connected to a connecting shaft (409), both ends of the connecting shaft (409) are rotatably connected to the main body (1), and the connecting shaft (409) is also fixedly connected to a pulley 2 (408), the pulley 2 (408) is connected to the pulley 1 (407) through a belt transmission, the side of the pulley 1 (407) is fixedly connected to a roller (406), and the axis of the roller (406) is connected to the main body (1) through a connecting rod. The parallel frame 1 (404) is rotatably connected, one end of the parallel frame 1 (404) is rotatably connected to the connecting shaft (409), the parallel frame 1 (404) is rotatably connected to the parallel frame 2 (405) via a parallel rod (412), both sides of the parallel frame 2 (405) are rotatably connected to rear wheels (413), the bottom of the parallel frame 2 (405) is rotatably connected to the main body (1), the parallel frame 1 (404) is connected to a tension spring (410), and one end of the tension spring (410) is connected to the fixed sleeve (101).

3. The heating furnace pipeline corrosion detection device according to claim 2, characterized in that: The invention also includes a wire-releasing and winding device, wherein the wire-releasing and winding device includes a clamping shaft (207), the clamping shaft (207) is rotatably connected to the inside of the main body (1), a wire (206) is wound around the clamping shaft (207), the detection head (205) is electrically connected to the controller (209) through the wire (206), and a coil spring (208) is provided inside the main body (1), one end of the coil spring (208) is connected to the clamping shaft (207), and the other end of the coil spring (208) is connected to the main body (1).

4. A method for detecting corrosion of heating furnace pipelines, characterized in that: The device for detecting corrosion of a heating furnace pipeline according to claim 3 further comprises the following steps: Step A: Adaptive support, using the oblique stretching of the stretching spring (410) to control the parallel frame 1 (404) and the parallel frame 2 (405) to move in a parallelogram, ensuring that the roller (406) and the rear wheel (413) are in parallel contact with the inner wall of the pipe; Step B: Movement: The rotation of the driving motor (401) will drive the rotation of the worm (402), which in turn drives the three worm wheels (403) to rotate, and the belt transmission will drive the rotation of the roller (406), thereby generating driving force for the entire device to move; Step C: Cleaning: The rotation of the driving motor (401) will drive the rotation of the fixed shaft (411), and then drive the rotating sleeve (102) to rotate. The rotating sleeve (102) will drive the interference rod (201) and the cleaning plate (203) to rotate. The rotation of the cleaning plate (203) will rotate and clean the inner wall of the pipe; Step D: Rotational movement detection, through the movement of the equipment and the rotation of the cleaning plate (203), the detection head (205) is driven to rotate and move laterally on the inner wall of the pipeline. The operator controls the start and stop of the detection head (205) according to the button of the controller (209), and finally performs abutment movement and rotation thickness measurement on the pipeline.

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