A long-range sootblower inner wall blow-down thickness measuring device

Abstract

The application provides a long-range soot blower inner wall blow loss thickness measuring device, which comprises a base frame, an inner tube, a connecting cylinder base, a driving assembly, an extension assembly and a detection assembly; the first end of the inner tube is fixed to the first end of the base frame, and the second end of the inner tube is used for slidingly sleeving a soot blowing outer tube; the connecting cylinder base is fixed to the second end of the base frame and is sleeved on the periphery of the soot blowing outer tube; the extension assembly is located on the periphery of the soot blowing outer tube, the first end of the extension assembly is connected with the driving assembly, and the second end of the extension assembly is connected with the detection assembly; the driving assembly is arranged on the connecting cylinder base; the driving assembly drives the extension assembly to move in the length direction of the soot blowing outer tube, thereby driving the detection assembly to measure the thickness of the soot blowing outer tube. The device can realize long-range wall thickness detection on the inner wall of a small-diameter pipeline, solves the problem that traditional ultrasonic and magnetic powder detection cannot cover a long range, can timely find the blow loss defects of the inner wall of the soot blower, and reduces the safety hidden danger.

Description

Technical Field

[0001] This invention belongs to the field of thermal power plant equipment testing technology, specifically relating to a device for measuring the thickness of the inner wall of a long-range sootblower tube. Background Technology

[0002] Long-range sootblowers operate under harsh conditions, frequently being put into operation under prolonged high temperatures and unsteady fluid conditions. Problems such as thinning of the inner wall of the sootblower tube, weld breakage, and ash leakage from the sealing box occur frequently, which can easily lead to the sootblower tube falling off and damaging important equipment such as the slag removal machine, directly threatening the safe and economical operation of the unit.

[0003] The small inner diameter and long length of the sootblower tube make it difficult to detect the wall thickness of the small-diameter pipe over long distances using existing technology. This results in the defects in the inner wall of the sootblower not being detected in a timely manner, which in turn leads to the continuous deterioration and expansion of the defects, posing a huge safety hazard to the operation of the sootblowing system.

[0004] To address the aforementioned issues, it is necessary to propose a well-designed and effective device for measuring the thickness of the inner wall of a long-range sootblower tube that can effectively solve these problems. Summary of the Invention

[0005] The present invention aims to solve at least one of the technical problems existing in the prior art, and provides a device for measuring the thickness of the inner wall of a long-distance sootblower tube.

[0006] This invention provides a device for measuring the thickness of the inner wall of a long-range sootblower tube, comprising a base frame, an inner tube, a connecting cylinder seat, a drive assembly, a telescopic assembly, and a detection assembly; The first end of the inner tube is fixed to the first end of the base frame, and the second end of the inner tube is used to slidably sleeve the soot blowing outer tube. The connecting sleeve seat is fixed to the second end of the base frame, and the connecting sleeve seat is sleeved around the outer periphery of the soot blowing outer tube; The telescopic assembly is located around the outer periphery of the soot blowing tube, and the first end of the telescopic assembly is connected to the driving assembly, and the second end of the telescopic assembly is connected to the detection assembly. The driving component is disposed on the connecting cylinder seat; wherein, the driving component drives the telescopic component to move telescopically along the length direction of the soot blowing outer tube, thereby driving the detection component to measure the thickness of the soot blowing outer tube.

[0007] Optionally, the telescopic assembly includes a fixed frame, multiple movable frames, a mounting rod, and a synchronization assembly; The fixing frame is fixed to the connecting cylinder seat; Multiple movable frames are spaced apart, and a synchronization component is provided between adjacent movable frames and between the fixed frame and its adjacent movable frame. The synchronization component can cause the multiple movable frames to extend and retract synchronously under the drive of the drive component. The first end of the mounting rod is rotatably connected to the fixed frame or the movable frame, and the second end of the mounting rod is fixedly connected to the synchronization component.

[0008] Optionally, a mounting rod is provided on both the fixed frame and the outermost movable frame; Two mounting rods are provided on each of the multiple movable frames located in the middle.

[0009] Optionally, the synchronization component includes multiple pairs of links and multiple gears; The gear is fixedly connected to the second end of the mounting rod; Each pair of links is located between the adjacent movable frames and between the fixed frame and its adjacent movable frame; wherein, Each pair of links includes two links that are movably connected, and the ends of the two links are fixedly connected to their corresponding mounting rods.

[0010] Optionally, the drive assembly includes a hydraulic telescopic rod; The first end of the hydraulic telescopic rod is rotatably connected to the connecting rod, and the second end of the hydraulic telescopic rod is rotatably connected to the connecting cylinder seat.

[0011] Optionally, it may also include a limiting component, which is used to limit the telescopic component to telescopically move along the length direction of the soot blowing outer tube.

[0012] Optionally, the limiting assembly includes two opposing limiting rods and a plurality of sliding blocks; The first end of the limiting rod is fixed to the connecting cylinder seat, and the second end of the limiting rod extends along the length direction of the soot blowing outer tube; The plurality of sliding blocks are respectively slidably disposed on the limiting rod, and the sliding blocks are respectively fixedly connected to their corresponding movable frames.

[0013] Optionally, it also includes a snap-fit ​​assembly, which is disposed on the outermost movable frame, and the detection assembly is mounted on the snap-fit ​​assembly.

[0014] Optionally, the snap-fit ​​assembly includes a mounting plate, multiple housings, snap-fit ​​blocks, and elastic elements; The mounting plate is fixed to the outermost movable frame; Multiple housings are spaced apart from the mounting plate; The housing has sliding grooves on opposite sides, and the snap-fit ​​blocks are slidably connected inside the two sliding grooves. One end of the snap-fit ​​block extends into the housing through the sliding groove. The housing has protrusions inside, and the two snap-fit ​​blocks are elastically connected to the sidewalls of the protrusions through the elastic elements at one end of the two snap-fit ​​blocks extending into the housing.

[0015] Optionally, the detection assembly includes a top cover, an ultrasonic sensor, and multiple plug-in housings fixedly installed on one side of the top cover; The ultrasonic sensor is fixed to the top cover; The top cover is connected to the plug-in shell, which is used to slide onto the housing.

[0016] The long-range sootblower tube inner wall thickness measurement device provided by the present invention has a telescopic component located on the periphery of the sootblower outer tube, with the first end of the telescopic component connected to a driving component and the second end of the telescopic component connected to a detection component; the driving component is set in a connecting cylinder seat; wherein, the driving component drives the telescopic component to move telescopically along the length direction of the sootblower outer tube, thereby driving the detection component to measure the thickness of the sootblower outer tube, realizing long-range wall thickness detection of small-diameter pipe inner wall, solving the problem that traditional ultrasonic and magnetic particle detection cannot cover long distances, enabling timely detection of sootblower inner wall defects and reducing safety hazards. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of a long-distance sootblower tube inner wall blow-off thickness measurement device according to an embodiment of the present invention; Figure 2 This is a front view of a long-distance sootblower tube inner wall blow-off thickness measurement device according to another embodiment of the present invention; Figure 3 This is a schematic diagram of the soot blowing outer tube assembly according to another embodiment of the present invention; Figure 4 This is a schematic diagram of a telescopic component according to another embodiment of the present invention; Figure 5 This is a schematic diagram of a synchronization component according to another embodiment of the present invention; Figure 6 This is a position diagram of the snap-fit ​​component according to another embodiment of the present invention; Figure 7 This is a cross-sectional view of a snap-fit ​​assembly according to another embodiment of the present invention; Figure 8 This is a diagram of a detection component according to another embodiment of the present invention. Detailed Implementation

[0018] To enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0019] like Figures 1 to 8As shown, the present invention provides a device for measuring the thickness of the inner wall of a long-distance sootblower tube, including a base frame, an inner tube 5, a connecting cylinder seat 4, a drive assembly 37, a telescopic assembly 34, and a detection assembly 39.

[0020] The first end of the inner tube 5 is fixed to the first end of the base frame, and the second end of the inner tube 5 is used to slide and sleeve the outer tube 6.

[0021] The connecting sleeve 4 is fixed to the second end of the base frame, and the connecting sleeve 4 is sleeved around the outer periphery of the soot blowing outer tube 6.

[0022] The telescopic component 34 is located around the outer periphery of the soot blowing outer tube 6, and the first end of the telescopic component 34 is connected to the drive component 37, and the second end of the telescopic component 34 is connected to the detection component 39.

[0023] The driving component 37 is disposed on the connecting cylinder seat 4; wherein, the driving component 37 drives the telescopic component 34 to move telescopically along the length direction of the soot blowing outer tube 6, thereby driving the detection component 39 to measure the thickness of the soot blowing outer tube 6.

[0024] Specifically, such as Figure 1 As shown, in this embodiment, the base frame includes a top plate 2 fixedly installed between multiple support frames 1. Side plates 3 are fixedly installed at both ends of the top plate 2. The side plates 3 include a first sub-plate 301 and a second sub-plate 302. The first sub-plate 301 (… Figure 1 An inner tube 5 is installed inside the side plate (near the left side). Specifically, the first sub-plate 301 has a through hole, through which the inner tube 5 is inserted into the first sub-plate 301; an outer tube 6 for blowing soot is slidably connected to the outside of the inner tube 5, and the second sub-plate 302 ( Figure 1 A connecting sleeve seat 4 is fixedly installed on the outer side (the side opposite to the support frame 1) of the side plate (closer to the right side). A telescopic component 34 is fixedly installed on the connecting sleeve seat 4. The connecting sleeve seat 4 is fixedly installed in the middle of the first sub-plate 301. The connecting sleeve seat 4 is sleeved on the outer periphery of the soot blowing outer tube 6, and the soot blowing outer tube 6 can slide relative to the connecting sleeve seat 4. The first sub-plate 301 is provided with a sleeve hole, and the first sub-plate 301 is fixed on the connecting sleeve seat 4 through the sleeve hole.

[0025] The long-range sootblower tube inner wall thickness measurement device provided by the present invention has a telescopic component located on the periphery of the sootblower outer tube, with the first end of the telescopic component connected to a driving component and the second end of the telescopic component connected to a detection component; the driving component is set in a connecting cylinder seat; wherein, the driving component drives the telescopic component to move telescopically along the length direction of the sootblower outer tube, thereby driving the detection component to measure the thickness of the sootblower outer tube, realizing long-range wall thickness detection of small-diameter pipe inner wall, solving the problem that traditional ultrasonic and magnetic particle detection cannot cover long distances, enabling timely detection of sootblower inner wall defects and reducing safety hazards.

[0026] For example, such as Figure 3 As shown, the soot blowing outer tube 6 includes a first tube section 7, a second tube section 8, and a nozzle 9 connected in sequence. Specifically, a welding part 11 is provided between the first tube section 7 and the second tube section 8, and between the second tube section 8 and the nozzle 9. That is, the first tube section 7, the second tube section 8, and the nozzle 9 are welded together in sequence. One end of the nozzle 9 is provided with an air outlet 10. For example, the air outlet 10 can be opened on the outer peripheral wall of the nozzle 9 to ensure that the soot blowing medium can be sprayed out normally to achieve the soot blowing function. At the same time, while retaining the core soot blowing function, the soot blowing outer tube 6 can also be used as the thickness measurement object of the detection component 39. The first tube section 7, the second tube section 8, and the nozzle 9 are fixedly connected by the welding part 11 to strengthen the connection strength between each section, resist the impact of high temperature fluid on the tube body during the soot blowing process, and avoid soot blowing failure or pipe falling due to tube section disconnection.

[0027] For example, such as Figure 4 As shown, the telescopic assembly 34 includes a fixed frame 13, multiple movable frames 14, a mounting rod 17, and a synchronization assembly 36; the fixed frame 13 is fixed to the connecting cylinder seat 4.

[0028] Multiple movable frames 14 are spaced apart, and a synchronization component 36 is provided between adjacent movable frames 14 and between the fixed frame 13 and its adjacent movable frames 14. The synchronization component 36 can cause multiple movable frames 14 to extend and retract synchronously under the drive of the drive component 37.

[0029] The first end of the mounting rod 17 is rotatably connected to the fixed frame 13 or the movable frame 14, and the second end of the mounting rod 17 is fixedly connected to the synchronization component 36.

[0030] In this embodiment, both the fixed frame 13 and the outermost movable frame 14 are provided with one mounting rod 17. The multiple movable frames 14 located in the middle are each provided with two mounting rods 17.

[0031] Specifically, refer to Figure 1 and Figure 4The telescopic assembly 34 includes a fixed frame 13 and a movable frame 14. The movable frame 14 includes a first sub-frame 141, a second sub-frame 142, and a third sub-frame 143 arranged sequentially in a direction away from the fixed frame 13. A fixed seat 12 is fixedly installed on the second sub-plate 302. The fixed frame 13 is fixedly connected to the fixed seat 12. Mounting rods 17 are rotatably installed on both the fixed frame 13 and the movable frame 14. Specifically, along the telescopic movement direction of the movable frame 14, one mounting rod 17 is rotatably connected to the fixed frame 13 and the third sub-frame 143. Two mounting rods 17 are rotatably connected to the first sub-frame 141 and the second sub-frame 142 located between the fixed frame 13 and the third sub-frame 143. Specifically, the fixed frame 13, the first sub-frame 141, the second sub-frame 142, and the third sub-frame 143 all include hollow rectangular plates. Along the radial direction of the soot blowing outer pipe 6, a rotating groove is provided on one side frame of the hollow rectangular plates of the fixed frame 13 and the third sub-frame 143. The mounting rods 17 are rotatably connected in the rotating groove.

[0032] In this embodiment, a multi-segment moving frame design is adopted to achieve long-distance, wide-range telescopic movement, enabling the detection range to cover the entire sootblowing pipe. A synchronization component ensures the consistency of movement of multiple moving frames during telescopic processes, avoiding jamming, tilting, or damage caused by asynchrony, and guaranteeing a smooth and accurate detection process. The fixed frame is firmly connected to the side plate via a fixed base, ensuring a stable starting point for power transmission of the telescopic assembly and preventing overall displacement due to loosening of the fixed end during telescopic movement.

[0033] For example, such as Figure 4 As shown, the synchronization component 36 includes multiple pairs of connecting rods 18 and multiple gears 20; the gears 20 are fixedly connected to the second end of the mounting rod 17; each pair of connecting rods 18 is located between the adjacent movable frames 14 and between the fixed frame 13 and its adjacent movable frames 14; wherein, each pair of connecting rods includes two connecting rods 18 that are movably connected, and the ends of the two connecting rods 18 are fixedly connected to their corresponding mounting rods 17.

[0034] Specifically, in some embodiments, such as Figure 4 and Figure 5As shown, the synchronization component 36 includes six connecting rods 18 and four gears 20. Each pair of connecting rods 18 forms a first rod group, a second rod group, and a third rod group, respectively. The first rod group, the second rod group, and the third rod group are respectively fixedly installed on the mounting rods 17 of the first sub-frame 141, the second sub-frame 142, and the third sub-frame 143. The four gears 20 are respectively fixedly installed on the four mounting rods 17 located on the first sub-frame 141 and the second sub-frame 142, and the two gears 20 on each sub-frame are meshed together. The two connecting rods 18 of each rod group are hinged together. Specifically, the two connecting rods 18 of each rod group are connected by a rotating shaft 19. When the drive component 37 drives a certain mounting rod 17 to rotate, the adjacent mounting rods 17 are driven to rotate synchronously in opposite directions through the meshing transmission of the gears 20. Then, through the cooperation of the connecting rods 18 and the rotating shaft 19, the first sub-frame 141, the second sub-frame 142, and the third sub-frame 143 achieve the same extension and retraction speed and displacement.

[0035] In this embodiment, a creative combination of gear meshing transmission and linkage mechanism is employed. Gear transmission ensures the accuracy and synchronization of power transmission, while the linkage mechanism efficiently converts the rotational motion of the mounting rod into the linear telescopic motion of the moving frame. This composite design ensures precise and coordinated movement of the entire telescopic assembly.

[0036] For example, such as Figure 4 and Figure 5 As shown, the drive assembly 37 includes a hydraulic telescopic rod 22; the first end of the hydraulic telescopic rod 22 is rotatably connected to the connecting rod 18, and the second end of the hydraulic telescopic rod 22 is rotatably connected to the connecting cylinder seat 4.

[0037] Specifically, in some embodiments, the drive assembly 37 includes a hydraulic telescopic rod 22, which is connected to the fixed base 12 via a second mounting base 23. The fixed base 12 is fixedly connected to the second sub-plate 302, and one end of the hydraulic telescopic rod 22 is rotatable relative to the second mounting base 23. The other end of the hydraulic telescopic rod 22, away from the second mounting base 23, is rotatably mounted with a first mounting base 21. The hydraulic telescopic rod 22 is fixedly mounted on the first rod group and rotatably connected to the connecting rod 18 of the fixed frame 13 via the first mounting base 21. The hydraulic telescopic rod 22 is fixedly mounted on the fixed base 12. One end of the hydraulic telescopic rod 22 of the drive assembly 37 is rotatably connected to the connecting rod 18 via the first mounting base 21, and the other end is rotatably connected to the fixed base 12 via the second mounting base 23. When the hydraulic telescopic rod 22 extends or retracts, it pushes or pulls the connecting rod 18 via the first mounting base 21, thereby driving the mounting rod 17 to rotate around the axis, ultimately converting it into the telescopic movement of the moving frame 14, providing continuous and stable power to the telescopic assembly 34.

[0038] In this embodiment, a hydraulic telescopic rod is used as the driving source, which has greater driving force and smoother output characteristics compared with driving methods such as motors and cylinders.

[0039] For example, the device also includes a limiting component 35 for limiting the telescopic component 34 to telescopically move along the length of the soot blowing tube 6.

[0040] For example, such as Figure 4 and Figure 5 As shown, the limiting assembly 35 includes two opposing limiting rods 16 and a plurality of sliding blocks 15; the first end of the limiting rod 16 is fixed to the connecting cylinder seat 4, and the second end of the limiting rod 15 extends along the length direction of the soot blowing outer tube 6; the plurality of sliding blocks 15 are respectively slidably disposed on the limiting rods 16, and the sliding blocks 15 are respectively fixedly connected to their corresponding moving frames 14.

[0041] Specifically, such as Figure 4 and Figure 5 As shown, in some embodiments, the limiting assembly 35 includes two limiting rods 16 and six sliding blocks 15. Along the radial direction of the sootblowing outer tube 6, the two limiting rods 16 are fixedly installed at intervals on the second sub-plate 302. The sliding blocks 15 are respectively fixedly arranged on opposite sides of the first sub-frame 141, the second sub-frame 142, and the third sub-frame 143, and are slidably connected to the two limiting rods 16 through the sliding blocks 15. Specifically, the sliding blocks 15 are provided with sliding holes, and the sliding blocks 15 are slidably connected to the limiting rods 16 through the sliding holes. Further, the limiting rods 16 are provided with limiting grooves, and the sliding hole walls of the sliding blocks 15 are provided with limiting protrusions; and / or, the limiting rods 16 are cylindrical rods, and the sliding holes are circular holes adapted to their shape. With this design, the groove structure or cylindrical surface constraint of the limiting rods 16 can restrict the moving frame 14 to move only linearly along the axial direction of the limiting rods 16, preventing the moving frame 14 from tilting left and right or shifting up and down during extension and retraction.

[0042] In this embodiment, the limiting component provides rigid guidance and constraint for the movement of the telescopic component, ensuring that it moves strictly in a straight line along the axial direction of the sootblowing outer tube. This effectively prevents radial offset or torsion that may occur during long-stroke telescopic movement, thereby ensuring a constant distance between the detection component and the tube wall and improving the accuracy of the thickness measurement data. The sliding engagement between the sliding block and the limiting rod achieves low-friction, high-precision linear guidance. This structure is simple and reliable, significantly reducing the driving load while ensuring the smoothness of the moving frame's movement, further guaranteeing the accuracy of the detection path.

[0043] For example, such as Figure 6 and Figure 7As shown, the device also includes a snap-fit ​​assembly 38, which is disposed on the outermost movable frame 14, and the detection assembly 39 is mounted on the snap-fit ​​assembly 38.

[0044] The snap-fit ​​assembly 39 includes a mounting plate 25, multiple housings 26, snap-fit ​​blocks 28, and elastic elements 29. The mounting plate 25 is fixed to the outermost movable frame 14. The multiple housings 26 are spaced apart and surround the mounting plate 25. Sliding grooves are formed on opposite sides of each housing 26, and the snap-fit ​​blocks 28 are slidably connected inside each of the two sliding grooves. One end of each snap-fit ​​block 28 extends into the housing 26 through the sliding groove. A protrusion is provided inside the housing 26, and the ends of the two snap-fit ​​blocks 28 extending into the housing 26 are elastically connected to the sidewalls of the protrusions via the elastic elements 29. The elastic element 29 can be a spring.

[0045] Specifically, such as Figure 6 and Figure 7 As shown, in some embodiments, the snap-fit ​​assembly 38 includes a mounting plate 25, a housing 26, and snap-fit ​​blocks 28. The mounting plate 25 is annular and is connected to the third sub-frame 143 via fixing blocks 24. There are multiple fixing blocks 24 arranged circumferentially along the annular mounting plate 25. Multiple housings 26 are fixedly mounted on the side of the mounting plate 25 away from the fixing blocks 24. Along the axial direction of the annular mounting plate 25, multiple housings 26 and multiple fixing blocks 24 are arranged in a one-to-one correspondence. Sliding grooves 27 are provided on opposite sides of the housings 26. The snap-fit ​​blocks 28 are slidably connected inside the two sliding grooves 27, and one end of the snap-fit ​​block extends into the housing 26 through the sliding groove 27. The housing 26 is provided with protrusions. The ends of the two snap-fit ​​blocks 28 that extend into the housing 26 are elastically connected to the sidewall of the protrusions via a spring 29.

[0046] In this embodiment, a dedicated snap-fit ​​assembly is used to install the detection assembly, achieving a modular connection between the detection assembly and the telescopic assembly. This makes the installation, disassembly, and maintenance of the detection assembly very convenient, allowing for quick completion without tools, and significantly reducing equipment maintenance costs and time.

[0047] For example, such as Figure 8 As shown, the detection component 39 includes a top cover 32, an ultrasonic sensor 33, and a plurality of plug-in shells 30 fixedly installed on one side of the top cover 32; the ultrasonic sensor 33 is fixed to the top cover 32; the top cover 32 is connected to the plug-in shells 30, and the plug-in shells 30 are used to slide into the housing 26.

[0048] Specifically, in some embodiments, the detection component 39 includes a top cover 32, an ultrasonic sensor 33, and multiple plug-in shells 30 fixedly installed on one side of the top cover 32. The ultrasonic sensor 33 is fixed on the side of the top cover 32 away from the plug-in shells 30. The plug-in shells 30 are used to slide into the housing 26. Both sides of the plug-in shells 30 are provided with locking interfaces 31. The sliding grooves 27 on both sides of the housing 26 provide sliding channels for the locking blocks 28. When the plug-in shells 30 of the detection component 39 are inserted into the housing 26, the plug-in shells 30 squeeze the locking blocks 28, causing the locking blocks 28 to move along the sliding grooves 27 into the housing 26 and compress the spring 29. When the locking interfaces 31 of the plug-in shells 30 are aligned with the locking blocks 28, the spring 29 releases its elastic potential energy, pushing the locking blocks 28 into the locking interfaces 31, thereby achieving rapid fixation of the detection component 39.

[0049] like Figures 1 to 8 As shown, the working process of the long-range sootblower tube inner wall wear thickness measuring device of the present invention is as follows: Check each core component of the device to ensure that the support frame 1 is free from deformation, the top plate 2 and the side plate 3 are securely connected, the first section 7, the second section 8 and the welding part 11 of the blower tube 6 and the nozzle 9 are free from cracks, the air outlet 10 is free from blockage, the ultrasonic sensor 33 is in normal sensitivity, the hydraulic telescopic rod 22 is free from leakage, the spring 29 is in good elasticity and the locking block 28 slides smoothly.

[0050] Start the hydraulic telescopic rod 22 of the drive assembly 37. Through the rotational connection of the first mounting base 21 and the second mounting base 23, drive the connecting rod 18 and the mounting rod 17 to move. This drives the three moving frames 14 of the telescopic assembly 34 to extend and retract along the direction of the limiting rod 16. Observe the cooperation between the sliding block 15 and the limiting rod 16 to ensure that the moving frames 14 are not stuck or tilted and achieve linear motion. Through the meshing transmission of the gear 20 of the synchronization assembly 36, ensure that the mounting rods 17 of the two middle moving frames 14 rotate synchronously and that the extension and retraction speeds of the three moving frames 14 are consistent. This prevents the detection assembly 39 from tilting. After debugging is completed.

[0051] The hydraulic telescopic rod 22 is activated, and the telescopic component 34 is gradually extended by hydraulic drive. The mounting rod 17 achieves progressive extension of the moving frame 14 by rotation. The synchronization component 36 ensures that the three moving frames 14 move synchronously through gear 20 meshing. The limiting component 35 strictly limits the extension direction. The detection component 39 moves into the sootblowing outer tube 6 synchronously with the moving frame 14 until it reaches the preset position at the end of the pipe. The ultrasonic sensor 33 works continuously during the movement, performing a 360-degree full-coverage detection of the inner wall of the sootblower tube and collecting tube wall thickness data in real time.

[0052] Because multiple ultrasonic sensors 33 are evenly distributed on the mounting plate 25, they can simultaneously capture thickness information at different positions along the circumference and axial direction of the pipe, avoiding localized blow damage and missed detection. If abnormal data is detected during the test, the precise speed adjustment function of the hydraulic telescopic rod 22 controls the detection component 39 to stay in the abnormal area and repeatedly collect data. The synchronization component 36 ensures that the detection component 39 does not deviate during the stay, and the limit component 35 prevents changes in the distance between the sensor and the pipe wall due to vibration, ensuring the reliability of the supplementary test data. After the test is completed, the hydraulic telescopic rod 22 is started in reverse to drive the telescopic component. 34. During retraction, the moving frame 14 gradually resets along the limiting rod 16, and the detection component 39 smoothly exits the soot blowing outer tube 6. During the retraction process, the synchronization component 36 continuously ensures the synchronous movement of the moving frame 14, preventing the detection component 39 from rubbing against the inner wall of the pipe. If the ultrasonic sensor 33 is damaged due to prolonged use, press the locking blocks 28 on both sides of the housing 26, compress the spring 29 to disengage the locking blocks 28 from the locking interface 31 of the plug housing 30, and pull the damaged ultrasonic sensor 33 out of the plug housing 30 along the sliding groove 27 to complete the quick disassembly. Then, install a new ultrasonic sensor 33.

[0053] Next, check the mounting rod 17, connecting rod 18, and gear 20 of the telescopic assembly 34 for wear. If the meshing clearance of gear 20 is too large, it needs to be replaced in time. Check whether the snap-fit ​​block 28 and spring 29 are deformed, and whether the sliding groove 27 has scratches. If necessary, apply grease to reduce friction. Perform precision calibration on the ultrasonic sensor 33 regularly to ensure that the thickness measurement error is within the allowable range. Test the extension speed and driving force of the hydraulic telescopic rod 22 and add hydraulic oil to the specified level. Check the rotation flexibility of the shaft 19 of the synchronization assembly 36 to avoid jamming that may affect the synchronization accuracy.

[0054] It is understood that the above embodiments are merely exemplary implementations used to illustrate the principles of the present invention, and the present invention is not limited thereto. For those skilled in the art, various modifications and improvements can be made without departing from the spirit and essence of the present invention, and these modifications and improvements are also considered to be within the scope of protection of the present invention.

Claims

1. A device for measuring the thickness of the inner wall of a long-range sootblower tube, characterized in that, Includes base frame, inner tube, connecting cylinder base, drive assembly, telescopic assembly and detection assembly; The first end of the inner tube is fixed to the first end of the base frame, and the second end of the inner tube is used to slidably sleeve the soot blowing outer tube. The connecting sleeve seat is fixed to the second end of the base frame, and the connecting sleeve seat is sleeved around the outer periphery of the soot blowing outer tube; The telescopic assembly is located around the outer periphery of the soot blowing tube, and the first end of the telescopic assembly is connected to the driving assembly, and the second end of the telescopic assembly is connected to the detection assembly. The driving component is disposed on the connecting cylinder seat; wherein, the driving component drives the telescopic component to move telescopically along the length direction of the soot blowing outer tube, thereby driving the detection component to measure the thickness of the soot blowing outer tube.

2. The apparatus according to claim 1, characterized in that, The telescopic assembly includes a fixed frame, multiple movable frames, a mounting rod, and a synchronization assembly; The fixing frame is fixed to the connecting cylinder seat; Multiple movable frames are spaced apart, and a synchronization component is provided between adjacent movable frames and between the fixed frame and its adjacent movable frame. The synchronization component can cause the multiple movable frames to extend and retract synchronously under the drive of the drive component. The first end of the mounting rod is rotatably connected to the fixed frame or the movable frame, and the second end of the mounting rod is fixedly connected to the synchronization component.

3. The apparatus according to claim 2, characterized in that, Both the fixed frame and the outermost movable frame are provided with a mounting rod; Two mounting rods are provided on each of the multiple movable frames located in the middle.

4. The apparatus according to claim 3, characterized in that, The synchronization component includes multiple pairs of linkages and multiple gears; The gear is fixedly connected to the second end of the mounting rod; Each pair of links is located between the adjacent movable frames and between the fixed frame and its adjacent movable frame; wherein, Each pair of links includes two links that are movably connected, and the ends of the two links are fixedly connected to their corresponding mounting rods.

5. The apparatus according to claim 4, characterized in that, The drive assembly includes a hydraulic telescopic rod; The first end of the hydraulic telescopic rod is rotatably connected to the connecting rod, and the second end of the hydraulic telescopic rod is rotatably connected to the connecting cylinder seat.

6. The apparatus according to claim 2, characterized in that, It also includes a limiting component, which is used to limit the telescopic component to telescopically move along the length direction of the soot blowing outer tube.

7. The apparatus according to claim 6, characterized in that, The limiting component includes two opposing limiting rods and multiple sliding blocks; The first end of the limiting rod is fixed to the connecting cylinder seat, and the second end of the limiting rod extends along the length direction of the soot blowing outer tube; The plurality of sliding blocks are respectively slidably disposed on the limiting rod, and the sliding blocks are respectively fixedly connected to their corresponding movable frames.

8. The apparatus according to claim 2, characterized in that, It also includes a snap-fit ​​assembly, which is disposed on the outermost movable frame, and the detection assembly is mounted on the snap-fit ​​assembly.

9. The apparatus according to claim 8, characterized in that, The snap-fit ​​assembly includes a mounting plate, multiple housings, snap-fit ​​blocks, and elastic elements; The mounting plate is fixed to the outermost movable frame; Multiple housings are spaced apart from the mounting plate; The housing has sliding grooves on opposite sides, and the snap-fit ​​blocks are slidably connected inside the two sliding grooves. One end of the snap-fit ​​block extends into the housing through the sliding groove. The housing has protrusions inside, and the two snap-fit ​​blocks are elastically connected to the sidewalls of the protrusions through the elastic elements at one end of the two snap-fit ​​blocks extending into the housing.

10. The apparatus according to claim 9, characterized in that, The detection assembly includes a top cover, an ultrasonic sensor, and multiple plug-in housings fixedly installed on one side of the top cover. The ultrasonic sensor is fixed to the top cover; The top cover is connected to the plug-in shell, which is used to slide onto the housing.

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