Fin tube root wind damage detection device

Abstract

The present invention belongs to the technical field of economizer fin tube detection, and specifically relates to a fin tube root wind damage detection device, comprising a detector, a circumferential guiding mechanism and a transverse guiding mechanism. The detector is suspended above the fin tube and is used to detect the distance between itself and the surface of the fin tube body; the circumferential guiding mechanism is used to control the detector to rotate around the central axis of the fin tube body; the transverse guiding mechanism is used to control the detector to move parallel to the central axis of the fin tube body. The present invention uses the circumferential guiding mechanism to enable the detector to move circumferentially with the center of the pipeline as the axis, thereby realizing multiple measurements along the groove length. Each measurement can ensure that it is always perpendicular to the pipe wall, avoiding detection errors caused by tool tilt; it has stable height positioning relative to the pipe wall surface, which is convenient for obtaining the maximum depth value of the groove; multiple measurements are performed on the groove cross section through the transverse guiding mechanism, and multiple measurements of the irregular groove bottom can avoid missing the deepest position.

Description

Technical Field

[0001] The invention belongs to the technical field of economizer fin tube detection, and particularly relates to a fin tube root wind damage detection device. Background Art

[0002] In thermal power plants, economizers are arranged in the flue at the rear of the boiler. The installation environment is high in smoke and dust. The economizer consists of several finned tubes arranged from top to bottom along the airflow direction. The finned tubes include a tube body and fin plates perpendicular to the tube body. The fin plates are densely designed with a spacing of 20mm.

[0003] Because finned tubes are exposed to high-temperature, high-pressure airflow and steam, they are constantly swept by the airflow. To prevent wind erosion, the tube surface requires protection. Currently, this protection involves covering the tube wall with a layer of stainless steel tiles. However, due to limited machining precision, gaps form between the tiles and the base of the fins. The windward side of the fins acts as a barrier to the airflow, causing the airflow to turn sharply downward and flow into the gaps, resulting in severe wind erosion at the base of the fins. Wind erosion is the formation of grooves on the tube wall, which thins the tube wall and ultimately causes a tube burst under the influence of the high-temperature, high-pressure water or steam inside the tube. A tube burst inside a boiler requires shutdown for maintenance, resulting in significant economic losses. Therefore, power generation companies attach great importance to effectively reducing and preventing boiler tube bursts.

[0004] Inspecting the grooves caused by blowout and assessing the risk of tube burst are currently the only work that can be done. However, due to the small spacing between the fins, there are currently no tools for inspecting the grooves at the bottom, so conventional vernier calipers can only be used for inspection. The vernier caliper is a manual tool. Although it can display relatively accurate values, it is prone to reading errors due to unstable operation. Specifically, when operating the vernier caliper for measurement, first, the ruler should be perpendicular to the pipe wall, but since most of the pipe body is blocked by the fins, it is not easy for the operator to judge whether the ruler is currently perpendicular to the pipe wall. When it is tilted and standing at the bottom of the groove, the measured value has a certain error; second, due to the small spacing between the fins, the groove condition cannot be clearly observed. The vernier caliper blindly explores the groove, and often explores outside the groove or the side wall of the groove. At the same time, due to irregular wind erosion at the bottom of the groove, it is impossible to determine whether the measured position is the deepest part of the groove; third, manual operation is slow and repeated measurements are inefficient. Summary of the Invention

[0005] The technical problem to be solved by the present invention is that it is inconvenient and has low accuracy to measure the depth of the groove caused by wind loss on the wall of the finned tube in the prior art.

[0006] The present invention solves the above problems by adopting the following technical solutions:

[0007] A device for detecting wind damage at the root of a fin tube comprises a detector, a circumferential guide mechanism and a transverse guide mechanism, wherein the detector is suspended above the fin tube and is used to detect the distance between itself and the surface of the fin tube body; the circumferential guide mechanism is used to control the detector to rotate around the central axis of the fin tube body at a constant radius; and the transverse guide mechanism is used to control the detector to move parallel to the central axis of the fin tube body.

[0008] Compared with the prior art, the present invention adopting the above structure has the following beneficial effects:

[0009] 1) A circumferential guide mechanism enables the detector to move circumferentially around the center of the pipe, allowing multiple measurements along the length of the groove. After movement, each measurement is guaranteed to be perpendicular to the pipe wall, avoiding detection errors caused by tool tilt. 2) Stable height positioning relative to the pipe wall surface ensures that the data from multiple measurements have a unified benchmark, facilitating the determination of the maximum depth of the groove. 3) Multiple measurements are performed on the groove cross section through a lateral guide mechanism, and multiple measurements of irregular groove bottoms can avoid missing the deepest position.

[0010] As a preferred embodiment, a further technical solution of the above structure is:

[0011] The circumferential guide mechanism includes: a C-shaped clamping ring with an arc length greater than or equal to 180 degrees, which grasps the outer wall surface of the fin tube body; a pillar, which is vertically fixed to the top of the C-shaped clamping ring, and a handle is provided on the top of the pillar.

[0012] The beneficial effects achieved by the above features are: the C-shaped clamping ring can effectively and conveniently grasp the central axis of the fin tube body, realize the rotation of the detector around the fin tube, and perform depth measurement at multiple positions along the length of the groove; the height support of the pillar enables the detector to have a stable reference value and avoids the fins from hurting the hands during operation.

[0013] The lateral guiding mechanism includes: a lateral through hole, which is provided on the surface of the pillar, and its axis is parallel to the central axis of the fin tube body, one end of which is a spring sleeve hole adapted for the coil spring, and the other end is a guide hole adapted for the guide rod; the guide rod is slidably installed in the lateral through hole, the front end protrudes from the outer wall of the spring sleeve hole, the rear end protrudes from the outer wall of the guide hole and the rear end is fixedly installed with a blocking piece; a mounting frame, in which the detector is installed, a window is provided on the lower surface of the mounting frame, and the side wall of the mounting frame is fixedly connected to the front end of the guide rod; the coil spring is sleeved on the guide rod, the front end abuts against the side wall of the mounting frame, and the rear end abuts against the rear side wall of the spring sleeve hole.

[0014] The beneficial effects obtained by the above features are as follows: the guide rod is used to drive the detector to move axially, and the spring facilitates the reset of the detector.

[0015] Optionally, the mounting frame includes a base plate fixed to the guide rod, side support plates fixed on both sides of the base plate, the inner wall of the side support plate is provided with a slide groove, the height of the slide groove matches the detector, and a lock hole is provided on either side support plate, and a locking bolt is installed in the lock hole.

[0016] Also optionally, the mounting frame includes a base plate fixed to the guide rod, U-slot pallets fixed on both sides of the base plate, the interval at the lower end of the U-slot pallet constitutes the window, a top clamp is installed on the upper end of the U-slot pallet, the top clamp is composed of a C-shaped clamp and a pressure plate, the C-shaped clamp includes an L-shaped fixed part and an L-shaped movable part, the movable part is elastically connected to the fixed part, the top clamp is fixed to the top of the detector and is located on the lower side of the upper end of the U-slot pallet, the upper surface of the top clamp is fixed with a screw, the pressure plate is arranged on the upper side of the upper end of the U-slot pallet, a through hole is provided on the pressure plate, the through hole is mounted on the screw, and a threaded sleeve is installed on the upper end of the screw.

[0017] Beneficial effects obtained from the above features: The detectors of the above two embodiments are movably mounted in the mounting frame, which can facilitate correction of the position of the laser emission point.

[0018] The detector includes a battery, a switch, a laser ranging module, a control circuit and a microprocessor, wherein the control pin of the laser ranging module is connected to the output pin of the microprocessor, the input pin of the microprocessor is connected to the switch, and the laser ranging module continuously measures after the switch is turned on.

[0019] The beneficial effects obtained by the above features are: distance measurement by laser, high reading accuracy and fast speed.

[0020] The switch of the detector is arranged on the surface of the baffle, and a sleeve is installed outside the guide hole. One end of the sleeve is fixedly connected to the pillar, and the other end is installed with a cover, which contacts the switch.

[0021] The beneficial effects obtained by the above features are as follows: this structure integrates the control of the switch and the operation of adjusting the predetermined position of the detector, which is convenient to use.

[0022] The periphery of the baffle is sealed with the inner wall of the sleeve, and air holes are provided on the sealing cover.

[0023] The beneficial effects obtained by the above features are as follows: this structure can slow down the speed at which the detector retracts, and for grooves with smaller widths, the detector has sufficient time to process data.

[0024] A magnet is provided on the side of the support, and the magnet is attracted to the fin plate, and the attraction force allows the magnet to slide on the surface of the fin plate.

[0025] The beneficial effects obtained by the above features are as follows: the magnetic attraction suppresses the axial swing of the pillar, but has little resistance to the circumferential movement of the pillar, which can enhance the stability of the detector during circumferential movement and avoid misalignment of the detection laser tilt. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 This is an overall structural diagram of the detection device provided by the present invention;

[0027] Figure 2 This is an assembly structure diagram of the guide rod of the detection device provided by the present invention;

[0028] Figure 3 This is the first embodiment of the mounting bracket of the present invention;

[0029] Figure 4 This is the second embodiment of the mounting bracket of the present invention;

[0030] Figure 5 This is an exploded view of the second embodiment of the mounting bracket of the present invention;

[0031] Figure 6 It is a schematic diagram of the structure of the detector of the detection device provided by the present invention;

[0032] Figure 7 This is a schematic diagram of the installation position of the detection device provided by the present invention in use state;

[0033] Figure 8 This is a schematic diagram of the circumferential guide mechanism of the present invention driving the detector to perform multi-point measurement along the groove;

[0034] Figure 9 It is a schematic diagram of the transverse guiding mechanism of the present invention driving the detector to perform multi-point measurement on the cross section of the groove A position.

[0035] In the figure: 1. Circumferential guide mechanism; 101. C-shaped retaining ring; 102. Support pillar; 103. Handle; 104. Magnet; 2. Transverse guide mechanism; 201. Mounting bracket; 202. Coil spring; 203. Guide rod; 204. Baffle; 3. Detector; 301. Laser ranging module; 302. Microprocessor; 303. Display module; 304. Battery; 4. Sleeve; 5. Switch; 6. Cover; 7. Air hole; 8. Fin tube body; 9. Fin plate; 10. Groove;

[0036] 2011, base plate; 2012, side support plate; 2013, slideway; 2014, locking bolt; 2015, U-groove support plate; 2016, fixed part; 2017, pressure plate; 2018, threaded sleeve; 2019, movable part; 2020, screw;

[0037] A, B and C are the positions of different measurement sections taken by the detector in the longitudinal direction of the groove; ① to ⑦ are different measurement points of the detector on a measurement section. DETAILED DESCRIPTION

[0038] The present invention will be further described below with reference to the embodiments, the purpose of which is only to provide a better understanding of the content of the present invention. Therefore, the examples given do not limit the scope of protection of the present invention.

[0039] See also Figures 1 to 2 The fin tube root wind damage detection device provided by the present invention includes a detector 3, a circumferential guide mechanism 1 and a transverse guide mechanism 2;

[0040] The detector 3 is suspended above the fin tube and is used to detect the distance between itself and the surface of the fin tube body 8;

[0041] The circumferential guide mechanism 1 is used to control the detector 3 to rotate around the central axis of the fin tube body 8 at a constant radius;

[0042] The transverse guiding mechanism 2 is used to control the detector 3 to move parallel to the central axis of the fin tube body 8.

[0043] As an option, the circumferential guide mechanism 1 comprises:

[0044] A C-shaped clamping ring 101, whose arc length is greater than or equal to 180 degrees, is gripped against the outer wall surface of the fin tube body 8;

[0045] The pillar 102 is vertically fixed to the top of the C-shaped clamping ring 101, and a handle 103 is provided on the top of the pillar 102.

[0046] See also Figure 8 The C-shaped clamping ring 101 effectively and conveniently grasps the center of the fin tube body 8, realizes the coaxial rotation of the detector 3 around the fin tube, and performs depth measurement at multiple positions along the length of the groove 10, such as Figure 8 At positions A, B, and C, the height of support 102 ensures a stable rotation radius for detector 3, preventing hand injuries from the fins during operation. The depth of groove 10 is calculated by subtracting the distance L2 from the pipe wall from the distance L1 from the bottom of the groove. This stable baseline ensures that the distance L2 from detector 3 to the pipe wall remains constant when the device measures at different positions in groove 10. Therefore, only the difference between L2 and a value greater than L2 is calculated, reducing the computational effort.

[0047] The support column 102 may adopt a retractable structure.

[0048] As an option, the lateral guiding mechanism 2 comprises:

[0049] A transverse through hole is provided on the surface of the support 102, with its axis parallel to the central axis of the fin tube body 8, one end of which is a spring sleeve hole adapted to the coil spring 202, and the other end is a guide hole adapted to the guide rod 203;

[0050] The guide rod 203 is slidably mounted in the transverse through hole, with its front end protruding from the outer wall of the spring sleeve hole and its rear end protruding from the outer wall of the guide hole and a blocking piece 204 fixedly mounted on the rear end;

[0051] The mounting frame 201 has the detector 3 mounted therein, a window is provided on the lower surface of the mounting frame 201, and the side wall of the mounting frame 201 is fixedly connected to the front end of the guide rod 203;

[0052] The coil spring 202 is sleeved on the guide rod 203, with its front end abutting against the side wall of the mounting frame 201 and its rear end abutting against the rear side wall of the spring sleeve hole.

[0053] See also Figure 9 The guide rod 203 is used to drive the detector 3 to move axially, and the coil spring 202 facilitates the translation and retraction of the detector 3. In this solution, the detector 3 measures the depth of multiple points on the cross section of the groove 10 during the retraction process using the coil spring 202, such as Figure 9 Among the seven measurement points ① to ⑦, ① to ⑤ are all in the groove. ② is the deepest point of groove 10, showing the maximum distance value. After ⑥, the values ​​have no fluctuation or very small fluctuation, indicating that the laser hits the pipe wall surface and the measurement of this position ends.

[0054] See also Figure 6 Detector 3 includes a battery 304, a switch 5, a laser ranging module 301, a control circuit, and a microprocessor 302. The control pin of laser ranging module 301 is connected to the output pin of microprocessor 302, and the input pin of microprocessor 302 is connected to switch 5. Laser ranging module 301 continuously measures when switch 5 is turned on. Of course, detector 3 is not limited to only the aforementioned electronic components; it may also be configured with a display module 303 and a host computer. Display module 303 intelligently displays measurement results (e.g., displaying only the highest value after a series of measurements, or displaying all feedback values ​​sequentially). Laser ranging provides high accuracy and speed, and can be combined with a microprocessor 302 or host computer for automated comparison, directly providing the deepest value.

[0055] The detector 3 of this solution is assembled and installed with electronic components based on the laser ranging module 301. The laser ranging module 301 is preferably a smaller electronic module product with a ranging range of less than 1 meter and an accuracy of 0.01, which can meet the requirements, such as: Features FSTOF2002x0D, Microspace Technology MT-01P, etc.

[0056] As an embodiment of the present solution, since the detector 3 is designed to move along the length of the groove 10, multiple cross sections on the groove 10 are selected, and then multiple measurements are performed laterally on each "cross section" to comprehensively detect the degree of damage to the tube body. The laser ranging module does not work when the detector 3 rotates around the fin tube, and laser measurement is performed when multiple consecutive detections are required on each cross section of the groove 10. For ease of operation, the microprocessor 302 and the control circuit can be used to control the operation of the laser ranging module 301. Those skilled in the art can select the corresponding microprocessor 302, circuit board module, etc. according to the type and function of the laser ranging module 301, and do not need to make creative work, so the structure of the detector 3 is not described in detail.

[0057] See also Figure 3 In the first embodiment of the mounting frame 201, the mounting frame 201 includes a base plate 2011 fixed to a guide rod 203. Side support plates 2012 are fixed to either side of the base plate 2011. Slide grooves 2013 are provided on the inner walls of the side support plates 2012. The height of the slide grooves 2013 matches that of the detector 3. Locking holes are provided on either side support plates 2012, and locking bolts 2014 are installed in the lock holes. The detector 3 moves along the slide grooves 2013 to adjust its position, and the locking bolts 2014 are used to secure the detector 3.

[0058] See also Figure 4 、 Figure 5 , Embodiment 2 of the mounting frame 201, the mounting frame 201 includes a base plate 2011 fixed to the guide rod 203, and U-groove support plates 2015 are fixed on both sides of the base plate 2011. The interval at the lower end of the U-groove support plate 2015 constitutes the window, and a top clamp is installed on the upper end of the U-groove support plate 2015. The top clamp consists of a C-shaped clamp and a pressure plate 2017. The C-shaped clamp includes an L-shaped fixed portion 2016 and an L-shaped movable portion 2019. The movable portion 2019 is elastically connected to the fixed portion 2016. The top clamp is fixed to the top of the detector 3 and is located at the lower side of the upper end of the U-groove support plate 2015. The upper surface of the top clamp is fixed with a screw 2020, and the pressure plate 2017 is arranged on the upper side of the upper end of the U-groove support plate 2015. A through hole is provided on the pressure plate 2017, and the through hole is sleeved on the screw 2020. A threaded sleeve 2018 is installed on the upper end of the screw 2020.

[0059] Because the groove 10 caused by wind damage is located at the root of the windward surface of the fin plate 9, the laser ranging module 301 is a fixed design. If there is an assembly error, it is easy to move beyond the limit during movement and cannot be adjusted, causing the laser to hit the fin plate 9, resulting in a large number of invalid results. In the above two embodiments, the detector 3 is movably mounted in the mounting frame 201. The movable mounting structure allows the laser emission point to stop at a position near the side surface of the fin plate 9 when moving closer to the fin plate 9, thereby effectively detecting the range of the groove 10. In particular, in the above embodiment 2, the top clamp is used to clamp the top of the detector 3. After loosening the threaded sleeve 2018, the threaded sleeve 2018 is pulled, driving the stud 220 and also driving the detector 3 to move. After tightening the threaded sleeve 2018, the pressure plate 217 is pressed against the top clamp to lock the position, making it easier to adjust the position of the detector 3 and providing better stability after positioning. The window is used to allow the laser to pass through and directly emit to the surface of the tube body.

[0060] In the detector 3, there are multiple options for the type of switch 5 and the type of laser ranging module 301. By selecting a high-frequency sensor, cooperating with the microprocessor 302 and the control circuit to continuously collect data, the switch 5 can be turned on and off actively or automatically according to the detection situation.

[0061] Optionally, the switch 5 of the detector 3 is set on the surface of the baffle 204, and a sleeve 4 is installed outside the guide hole. One end of the sleeve 4 is fixed to the pillar 102, and the other end is installed with a cover 6. When the coil spring 202 is compressed, the cover 6 abuts against the switch 5.

[0062] See also Figure 9 The pillar 102 is provided with a magnet 104 on its side. The magnet 104 is attracted to the fin plate 9, and the attraction force allows the magnet 104 to slide on the surface of the fin plate 9. The magnetic attraction suppresses the axial swing of the pillar 102, but has little resistance to the circumferential movement of the pillar 102. This can enhance the stability of the detector 3 during circumferential movement and prevent the detection laser from tilting and misaligning.

[0063] The width of the C-shaped clamp 101 of the present invention is slightly smaller than the distance between the two fin plates 9, so that it can probe the surface of the fin tube body 8; the support 102 can be of the same thickness, but the width should be slightly larger to facilitate supporting the guide rod 203 and the detector 3; the handle 103 is made of a cylinder and a sphere with a diameter of 4cm-5cm and is held in the palm of the hand; the mounting frame 201 should have a structure that is convenient for the thumb to hook and pull, such as the screw 2020 structure at the top of the pressure plate 2017.

[0064] See also Figures 7 to 9The method of using the present invention is as follows: First, the operator holds the handle 103 with four fingers to operate the detection device, inserts the C-shaped retaining ring 101 into the back side of the fin plate 9 where the groove 10 to be detected is located, and if there is a magnet 104, it is attracted to the fin plate 9; Second, the thumb pulls the mounting bracket 201 to move the detector 3 toward the surface of the support 102, pulls it to the bottom and presses it; Third, use the other hand to adjust the position of the detector 3 in the mounting bracket 201 so that the laser emission point is aligned with the tube wall surface at the root of the fin plate 9; Fourth, release the mounting bracket 201, and the detector 3 retreats due to the spring; The fourth step is to pull the device downward to rotate when searching, so that the detector 3 is aligned with the range of the groove 10; the fifth step is to use the thumb to pull the mounting bracket 201 inward, and when the switch 5 contacts the cover 6, the power is turned on, and the laser ranging module 301 is kept powered through the microprocessor 302. After the switch 5 is turned on, the mounting bracket 201 is immediately released, and the coil spring 202 pushes the detector 3 to move outward from the root of the fin plate. The laser ranging module 301 performs multiple measurements at a high frequency, thereby obtaining the values ​​of multiple points at the bottom of the groove 10.

[0065] Taking into account the small width of the groove 10 caused by wind damage, the detection frequency of the laser ranging module 301 is limited by factors such as the model, the processing speed of the microprocessor 302, and the response speed of the circuit. The unconstrained retraction speed will cause the laser ranging module to move too fast and fail to obtain a sufficient number of data on the groove 10. Therefore, this solution also provides an embodiment that can slow down the movement speed of the detector 3. It is improved on the basis of the above-mentioned embodiment of the sleeve 4, specifically: the periphery of the baffle 204 is sealed with the inner wall of the sleeve 4, and an air hole 7 is provided on the wall of the sleeve 4 or on the cover 6. Under the action of a strong finger pull, the baffle 204 moves toward the cover 6, and the air in the sleeve 4 is discharged through the air hole 7. The strong finger force allows the air to be discharged quickly, so the air hole 7 has little impact on the operation. After the baffle 204 is in contact with the cover 6, a vacuum is formed in the sleeve 4. When the baffle 204 moves away from the cover 6 under the action of the coil spring 202, the vacuum creates resistance to the baffle 204. The presence of the air hole 7 allows air to enter the sleeve 4 slowly, forcing the baffle 204 to move slowly. To reduce the air filling speed, the provision of a single air hole 7 is sufficient.

[0066] Compared with the prior art, the present invention adopting the above structure has the following beneficial effects:

[0067] 1) A circumferential guide mechanism enables the detector to use the center of the pipe as the axis, achieving multiple measurements along the length of the groove. After movement, each measurement is guaranteed to be perpendicular to the pipe wall, avoiding detection errors caused by tool tilt. 2) Stable height positioning relative to the pipe wall surface ensures that the data from multiple measurements have a unified benchmark, facilitating the determination of the maximum depth of the groove. 3) A lateral guide mechanism enables multiple measurements on the groove cross section. Multiple measurements of irregular groove bottoms can avoid missing the deepest position.

[0068] The above description is only a preferred embodiment of the present invention and does not limit the scope of the present invention. Any equivalent changes made using the contents of the present invention specification and its drawings are included in the scope of the present invention.

Claims

1. A fin tube root wind damage detection device, characterized in that: include: The detector (3) is suspended above the fin tube and is used to detect the distance between the detector and the surface of the fin tube body (8); the detector (3) includes a laser distance measuring module (301), a switch (5), a battery (304), a control circuit and a microprocessor (302), wherein the control pin of the laser distance measuring module (301) is connected to the output pin of the microprocessor (302), the input pin of the microprocessor (302) is connected to the switch (5), and the laser distance measuring module (301) continuously measures after the switch (5) is turned on; A circumferential guide mechanism (1) is used to control the detector (3) to rotate around the central axis of the fin tube body (8) at a constant radius; it comprises: A C-shaped clamping ring (101) having an arc length of 180 degrees or more, which is gripped against the outer wall surface of the fin tube body (8); A support (102) is vertically fixed to the top of the C-shaped clamp (101), and a handle (103) is provided on the top of the support (102); The transverse guide mechanism (2) is used to control the detector (3) to move parallel to the central axis of the fin tube body (8), and comprises: A transverse through hole is provided on the surface of the support (102), the axis of which is parallel to the central axis of the fin tube body (8), one end of which is a spring sleeve hole adapted to the coil spring (202), and the other end of which is a guide hole adapted to the guide rod (203); A guide rod (203) is slidably mounted in the transverse through hole, with a front end protruding from the outer wall of the spring sleeve hole and a rear end protruding from the outer wall of the guide hole and a baffle (204) fixedly mounted on the rear end; A mounting frame (201) is provided with the detector (3) therein, a window is provided on the lower surface of the mounting frame (201), and a side wall of the mounting frame (201) is fixedly connected to the front end of the guide rod (203); The coil spring (202) is sleeved on the guide rod (203), with its front end abutting against the side wall of the mounting frame (201) and its rear end abutting against the rear side wall of the spring sleeve hole.

2. The fin tube root wind damage detection device according to claim 1, characterized in that: The mounting frame (201) comprises a base plate (2011) fixedly connected to the guide rod (203), side support plates (2012) fixedly connected to both sides of the base plate (2011), inner walls of the side support plates (2012) are provided with slide grooves (2013), the height of the slide grooves (2013) matches that of the detector (3), and locking holes are provided on either side support plates (2012), and locking bolts (2014) are installed in the lock holes.

3. The fin tube root wind damage detection device according to claim 1, characterized in that: The mounting frame (201) includes a base plate (2011) fixedly connected to the guide rod (203), U-groove support plates (2015) fixedly connected to both sides of the base plate (2011), the interval at the lower end of the U-groove support plate (2015) forming the window, and a top clamp is installed at the upper end of the U-groove support plate (2015), the top clamp consists of a C-shaped clamp and a pressure plate (2017), the C-shaped clamp includes an L-shaped fixed portion (2016) and an L-shaped movable portion (2019), the movable portion (2019) is elastically connected to the fixing portion (2016), the top clamp is fixed to the top of the detector (3) and is located on the lower side of the upper end of the U-groove support plate (2015), the upper surface of the top clamp is fixedly connected to the screw (2020), the pressure plate (2017) is arranged on the upper side of the upper end of the U-groove support plate (2015), the pressure plate (2017) is provided with a through hole, the through hole is sleeved on the screw (2020), and the upper end of the screw (2020) is installed with a threaded sleeve (2018).

4. The fin tube root wind damage detection device according to claim 1, characterized in that: The switch (5) of the detector (3) is arranged on the surface of the baffle (204), and a sleeve (4) is installed outside the guide hole. One end of the sleeve (4) is fixed to the support (102), and the other end is installed with a cover (6), and the cover (6) is in contact with the switch (5).

5. The fin tube root wind damage detection device according to claim 1, characterized in that: The periphery of the baffle (204) is sealed with the inner wall of the sleeve (4), and an air hole (7) is provided on the sealing cover (6).

6. The fin tube root wind damage detection device according to claim 1, characterized in that: A magnet (104) is provided on the side of the pillar (102), and the magnet (104) is attracted to the fin plate (9), and the attraction force allows the magnet (104) to slide on the surface of the fin plate (9).

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