Intelligent detection auxiliary device for narrow-gap furnace tube

Abstract

The present application relates to nondestructive testing device, especially to a narrow gap furnace tube intelligent detection auxiliary device, including main body 1, angle adjusting mechanism and sensor mounting card 2 for installing sensor 3, the sensor mounting card 2 is swingably arranged on the main body 1, the angle adjusting mechanism is used to drive the sensor mounting card 2 swing, to make the sensor 3 rotate around its corresponding detection tube center axis, so that sensor 3 is smoothly inserted into the gap of adjacent two pipes to reach the detection working position.The narrow gap furnace tube intelligent detection auxiliary device of the present application can realize intelligent detection of the corrosion of the inner wall of the narrow gap furnace tube under the control of the appropriate control system, further, in some preferred embodiments, the narrow gap furnace tube intelligent detection auxiliary device is provided with a driving part to drive it to move along the axial direction of the furnace tube to realize intelligent detection, in addition, the detection auxiliary device adopts flexible power supply and communication mode to adapt to different working environments.

Description

Technical Field

[0001] This invention belongs to the field of nondestructive testing technology, specifically, it relates to an intelligent testing auxiliary device for narrow-gap furnace tubes. Background Technology

[0002] In the field of non-destructive testing (NDT), a wide variety of testing equipment and auxiliary equipment are available for different work environments to ensure the reliability of testing processes and the smooth progress of testing work. Under current NDT technology, the main techniques suitable for inspecting weld seams and internal wall corrosion of densely packed furnace tubes with narrow gaps include radiographic testing, ultrasonic phased array testing, far-field eddy current testing, array eddy current testing, and metal magnetic memory testing. However, when the furnace tubes are in their natural state, the dense arrangement of the tubes makes the testing environment confined, making it difficult for personnel to reach the working position. Furthermore, the distance between adjacent furnace tubes is approximately 20mm, making it difficult for testing equipment to penetrate between the tubes. Therefore, the aforementioned testing methods are often ineffective. Forcibly pulling apart the boiler tube panels and then disassembling them allows for testing, but this process is labor-intensive and can easily damage the tubes.

[0003] Some existing pipeline non-destructive testing (NDT) devices employ an extension rod and a testing device connected to it. The device is inserted into the gaps between furnace tubes by hand using the extension rod. However, due to the difficulty for operators to access certain production areas, the extension rod's length is insufficient to complete the testing in these areas, and the entire process requires manual assistance, which is time-consuming and labor-intensive, failing to meet the requirements for large-scale automated testing. Other existing pipeline NDT devices are designed to move along the inner wall of the pipeline to transport the testing device to a designated location. These devices are only suitable for large pipelines, have significant requirements on the pipeline's radial dimensions, and still struggle to meet the requirements for large-scale automated testing. Therefore, how to solve the problem of automated testing of corrosion on the inner walls of large-scale, narrow-gap, densely packed furnace tubes without separating or disassembling the tube screen has become a challenging issue in this field.

[0004] In view of this, it is necessary to design an intelligent detection auxiliary device for narrow gap furnace tubes that can overcome the above-mentioned technical difficulties and effectively solve or alleviate the above-mentioned technical defects. Summary of the Invention

[0005] The technical problem to be solved by the present invention is to provide an intelligent detection auxiliary device for narrow gap furnace tubes, which can realize non-destructive detection of corrosion on the inner wall of narrow gap furnace tubes.

[0006] To address the aforementioned technical problems, this invention provides an intelligent detection auxiliary device for narrow-gap furnace tubes, comprising a main body, an angle adjustment mechanism, and a sensor mounting clip for mounting a sensor. The sensor mounting clip is oscillatingly mounted on the main body. The angle adjustment mechanism drives the sensor mounting clip to oscillate, causing the sensor to rotate around the central axis of its corresponding detection tube, so that the sensor can be smoothly inserted into the gap between the detection tube and the adjacent furnace tube to reach the detection working position.

[0007] Preferably, the sensor mounting card is provided with a detachable connection structure for detachably mounting the sensor.

[0008] Preferably, the main body has a hole at its central axis through which the sensor mounting card can freely pass, the sensor mounting card is disposed in the hole, the size of the hole is set to allow the sensor mounting card to move freely therein, a connector is provided at the upper end of the side of the sensor mounting card that passes through the hole, the connector is hinged to the main body, the main body is provided with a sliding groove, and the hinged end of the connector is slidably disposed in the sliding groove.

[0009] Preferably, the angle adjustment mechanism includes a connecting wire and a return spring. The connecting wire is connected to the sensor mounting clip so that pulling the connecting wire controls the sensor mounting clip to swing around its hinge end, thereby causing the sensor to rotate around the central axis of the corresponding detection tube. The return spring is provided between the sensor mounting clip and the main body, and the return spring provides a spring force to drive the sensor mounting clip to rotate in the opposite direction around its hinge end, thereby causing the sensor to rotate in the opposite direction around the central axis of the corresponding detection tube.

[0010] Preferably, the narrow gap furnace tube intelligent detection auxiliary device includes multiple sensor mounting clips, and multiple holes corresponding to the sensor mounting clips are provided along the central axis of the main body. The angle adjustment mechanism includes multiple connecting lines corresponding to the sensor mounting clips. The left side surface of the main body is provided with multiple wire management holes to prevent the connecting lines from moving and pulleys to facilitate the positioning and sliding of the connecting lines. The wire management holes are used to gather all the connecting lines into a connecting wire bundle.

[0011] Preferably, the narrow gap furnace tube intelligent detection auxiliary device further includes a handheld operating end, which includes an operating rod and a handle. One end of the main body is provided with a mounting hole for mounting the handle. The end of the handle away from the main body is hinged to one end of the operating rod, and the other end of the operating rod is connected to the connecting wire harness.

[0012] Preferably, the narrow gap furnace tube intelligent detection auxiliary device further includes a drive mechanism for driving the main body to move axially along the furnace tube, the drive mechanism including at least one drive unit for driving the main body to move axially along the furnace tube.

[0013] Preferably, the drive unit includes a drive wheel and a drive motor for driving the drive wheel to rotate. The outer arc surface shape of the drive wheel is designed to fit against the outer surface of the furnace tube. A support wheel is provided on the side of the main body facing the furnace tube.

[0014] Preferably, the narrow gap furnace tube intelligent detection auxiliary device further includes a battery power supply component and a wireless communication component. The drive mechanism includes two drive units respectively disposed at the upper and lower ends of the main body. The drive unit includes a speed encoder for measuring the movement of the main body relative to the outer surface of the furnace tube. The drive motor and the speed encoder are both connected to the battery power supply component and the wireless communication component.

[0015] Preferably, the narrow-gap furnace tube intelligent detection auxiliary device further includes a camera for capturing and detecting information on damage to the outer surface of the furnace tube and / or a camera socket for mounting the camera.

[0016] Through the above technical solution, the sensor mounting card of the narrow gap furnace tube intelligent detection auxiliary device of the present invention can rotate around the central axis of the detection tube corresponding to the sensor under the drive of the angle adjustment mechanism. By rotating, one end of the sensor can be smoothly inserted into the gap between two adjacent pipes, so that the sensor reaches the detection working position. This avoids the damage that may be caused to the tube by pulling and unpulling the tube screen, and also reduces the manpower and time costs required to pull and unpulle the tube, thereby improving the detection efficiency.

[0017] Other features and advantages of the present invention will be described in detail in the following detailed description section. Attached Figure Description

[0018] Figure 1 This is a front view of the narrow-gap furnace tube intelligent detection auxiliary device according to a specific embodiment of the present invention; Figure 2 This is a left view of the intelligent detection auxiliary device for narrow gap furnace tubes according to a specific embodiment of the present invention; Figure 3 This is a top view of the narrow-gap furnace tube intelligent detection auxiliary device according to a specific embodiment of the present invention; Figure 4 This is a schematic diagram of the sensor mounting card of the narrow gap furnace tube intelligent detection auxiliary device according to a specific embodiment of the present invention; Figure 5This is a schematic diagram of the sensor mounting card and the main body connection part of the narrow gap furnace tube intelligent detection auxiliary device according to a specific embodiment of the present invention; Figure 6 This is a schematic diagram of the sensor rotating around the central axis of its corresponding detection furnace tube according to a specific embodiment of the present invention.

[0019] Explanation of reference numerals in the attached figures Detailed Implementation

[0020] The embodiments of the present invention will be further described in detail below with reference to the accompanying drawings and examples. The detailed description of the following embodiments and the accompanying drawings are used to illustrate the principles of the present invention by way of example, but should not be used to limit the scope of the present invention. The present invention can be implemented in many different forms and is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

[0021] These embodiments are provided to make the invention thorough and complete, and to fully express the scope of the invention to those skilled in the art. It should be noted that, unless otherwise specifically stated, the relative arrangement of components and steps, and the composition and values ​​of materials described in these embodiments should be interpreted as merely exemplary and not as limiting.

[0022] It should be noted that, in the description of this invention, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," and "outer," etc., indicating orientation or positional relationships, are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this invention. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0023] Furthermore, the terms "first," "second," and similar terms used in this invention do not indicate any order, quantity, or importance, but are merely used to distinguish different parts. Terms such as "comprising" or "including" mean that the element preceding the term encompasses the element listed after the term, and do not exclude the possibility of encompassing other elements as well.

[0024] It should also be noted that, in the description of this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this invention depending on the specific circumstances. When a specific device is described as being located between a first device and a second device, an intermediary device may or may not be present between the specific device and the first or second device.

[0025] All terms used in this invention have the same meaning as understood by one of ordinary skill in the art to which this invention pertains, unless otherwise specifically defined. It should also be understood that terms defined in general dictionaries should be interpreted as having meanings consistent with their meanings in the context of the relevant art, and not as idealized or highly formalized, unless expressly defined herein.

[0026] Techniques, methods, and equipment known to those skilled in the art may not be discussed in detail, but where appropriate, they should be considered part of the specification.

[0027] like Figure 1 and Figure 6 As shown, the intelligent furnace tube detection auxiliary device of the present invention includes a main body 1, an angle adjustment mechanism, and a sensor mounting clip 2 for mounting a sensor 3. The sensor mounting clip 2 is swayably mounted on the main body 1, and the sensor mounting clip 2 is set corresponding to the pipe gap. The angle adjustment mechanism can drive the sensor mounting clip 2 to swing, so that the sensor 3 connected to the sensor mounting clip 2 swings around the central axis of one of the two adjacent pipes, allowing the sensor 3 to smoothly penetrate into the gap between the two adjacent pipes. Thus, the intelligent furnace tube detection auxiliary device of the present invention can send the sensor 3 into the detection working position between the narrow gap furnace tubes and realize intelligent detection without pulling and unpulling the tube screen, reducing the labor and time costs of pulling and unpulling the tube screen, and avoiding possible damage to the tubes caused by pulling and unpulling the tube screen. In some preferred embodiments, the intelligent furnace tube detection auxiliary device is made of non-ferromagnetic material to avoid interference with the detection work.

[0028] As a preferred implementation method, such as Figure 1 As shown, the sensor mounting card 2 is provided with a detachable connection structure for detachable installation of the sensor 3, which facilitates the replacement of the sensor 3 according to the shape, size, gap of the tube and the detection position in the actual situation.

[0029] As a preferred implementation method, such as Figure 1 and Figure 5As shown, a hole 101 is provided at the central axis of the main body 1. The end of the sensor mounting card 2 away from the sensor 3 passes through the hole 101. The size of the hole 101 is set to be suitable for the sensor mounting card 2 to move freely in it. In this embodiment, the height of the hole 101 is a certain size (5-10mm) greater than the height of the sensor mounting card 2. The height direction of the hole 101 is the same as the height direction of the main body 1, so that the sensor mounting card 2 can move or swing in the height direction of the main body 1. A connector 201 is provided at the upper end of the side of the sensor mounting card 2 that passes through the hole 101. The main body 1 is provided with a sliding groove 106. The pin 202 passes through the corresponding hole on the connector 201 and is slidably disposed in the sliding groove 106, so that the sensor mounting card 2 can swing relative to the main body 1 and move along the height direction of the main body 1. Thus, the sensor mounting card 2 rotates relative to the main body and moves along the height direction of the main body 1 under the drive of the angle adjustment mechanism, driving the sensor 3 to rotate around the central axis of the tube.

[0030] As a preferred implementation method, such as Figure 1 , Figure 4 and Figure 6 As shown, in this embodiment, the angle adjustment mechanism includes a connecting line 4 and a return spring 5. The connecting line 4 is connected to the sensor mounting card 2, and the return spring 5 is provided between the sensor mounting card 2 and the main body 1. By pulling the connecting line 4, the sensor mounting card 2 is driven to rotate around its hinge end, so that the sensor 3 can be smoothly inserted into the gap between two adjacent pipes. When the connecting line 4 is released, the return spring 5 retracts, and the sensor mounting card 2 rotates in the opposite direction around its hinge end under the drive of the return spring 5, driving the sensor 3 to rotate in the opposite direction around the central axis of its corresponding detection pipe, so that the sensor 3 penetrates into the gap between two adjacent pipes. In addition, since the hinge end of the connector 201 can slide along the sliding groove 106 and the return spring 5 is installed between the sensor mounting card 2 and the main body 1, the sensor mounting card 2 can elastically displace along the height direction of the main body 1. Thus, during the process of the sensor penetrating into the gap between two pipes and during the process of the narrow gap furnace tube intelligent detection auxiliary device moving along the axial direction of the pipe for detection, the sensor 3 can effectively contact the pipe without squeezing, avoiding friction and jamming between the sensor 3 and the pipe.

[0031] As a preferred implementation method, such as Figure 2As shown, the intelligent detection auxiliary device for furnace tubes in this embodiment includes multiple sensor mounting clips 2. Multiple holes 101 are provided along the central axis of the main body 1, and each hole 101 contains a sensor mounting clip 2. The axial direction of the main body 1 is aligned with the arrangement direction of the narrow-gap pipes, so that each sensor mounting clip 2 corresponds to a pipe gap. The angle adjustment mechanism includes multiple connecting lines 4 corresponding one-to-one with the sensor mounting clips 2. Multiple cable management holes 102 are provided on the left side surface of the main body 1 to prevent the connecting lines 4 from shifting, and pulleys 103 facilitate the positioning and sliding of the connecting lines 4. The cable management holes 102 are used for… All connecting wires 4 are gathered into a connecting wire harness 6, so that pulling the connecting wire harness 6 can drive multiple sensors 3 to rotate around the central axis of their corresponding detection tubes. After releasing the connecting wire harness 6, under the action of the return spring, each sensor 3 can rotate around the central axis of its corresponding detection tube, so that each sensor 3 is smoothly placed in the detection working position between the pipes. The narrow gap furnace tube intelligent detection auxiliary device moves along the axis of the tube and simultaneously detects multiple furnace tubes with densely arranged narrow gaps. The detection efficiency is high, and the cost of this detection auxiliary device to detect the gaps of multiple furnace tubes at the same time is low.

[0032] As a preferred implementation method, such as Figure 2 As shown, the narrow-gap furnace tube intelligent detection auxiliary device of this embodiment also includes a handheld operating end 7. The handheld operating end 7 includes an operating rod 701 and a handle 702. One end of the main body 1 is provided with a mounting hole 104 for mounting the handle 702. The end of the handle 702 away from the main body 1 is hinged to one end of the operating rod 701. The other end of the operating rod 701 is connected to the connecting wire harness 6. The handheld operating end 7 facilitates the operator to hold and move the narrow-gap furnace tube intelligent detection auxiliary device. By holding the operating rod 701, the operating rod 701 rotates around its hinge axis. The movable end of the operating rod 701 pulls the connecting wire harness 6, and the connecting wire harness 6 pulls the sensor mounting clips 2, causing the outer ends of each sensor mounting clip 2 to swing downward, so that the outer ends of each sensor 3 can be smoothly inserted into their corresponding pipe gaps. After releasing the operating rod 701, each sensor mounting clip 2 returns to a horizontal position under the pull of the return spring 5, so that each sensor 3 rotates around the central axis of the detection tube. Thus, the operating rod 701 facilitates the operator to simultaneously send multiple sensors into the gaps of the furnace tube. Furthermore, the narrow gap furnace tube intelligent detection auxiliary device of the present invention can extend the length of the main body 1 by installing an extension member in order to detect more tubes at the same time. In some embodiments, both ends of the main body are provided with mounting holes 104, which can be used to install the handheld operating end 7 or to install the extension member.

[0033] As a preferred implementation method, such as Figure 1As shown, the narrow-gap furnace tube intelligent inspection auxiliary device of this embodiment also includes a drive mechanism for driving the main body 1 to move axially along the furnace tube. The drive mechanism includes at least one drive unit for driving the main body 1 to move axially along the furnace tube. By driving the main body 1 to move axially along the furnace tube through the drive unit, automated non-destructive inspection of narrow-gap dense furnace tubes is realized, reducing labor costs. In a further preferred embodiment, such as... Figure 2 As shown, the power supply of the narrow gap furnace tube intelligent detection auxiliary device in this embodiment includes two methods: battery power supply component 13 and cable power supply. The device communicates with the control system using two methods: wireless communication component 14 and cable communication. Cable power supply and cable communication are conventionally used. When the narrow gap furnace tube intelligent detection auxiliary device is running in a special working position, it is difficult to use cable power supply and communication. Battery power supply and wireless communication can be used to enable the device to complete the detection. Thus, the narrow gap furnace tube intelligent detection auxiliary device of the present invention can go to the location that is difficult for humans to reach for detection.

[0034] As a preferred implementation method, such as Figure 1 and Figure 3 As shown, the drive unit includes a drive wheel 10 and a drive motor 9 for driving the drive wheel 10 to rotate. The outer arc shape of the drive wheel 10 is designed to fit against the outer surface of the furnace tube. In this embodiment, a drive wheel 10 and a drive motor 9 are provided at each end of the main body. The upper drive wheel 10 is mounted on the first sensor mounting card 2, and the lower drive wheel 10 is staggered from the second-to-last sensor mounting card 2. The two drive wheels 10 allow the main body 1 to be relatively stably hung on the furnace tube. Driven by the drive motor 9, the drive wheels 10 can drive the main body 1 to move along the axial direction of the furnace tube, so as to facilitate automatic control and movement of the narrow-gap furnace tube intelligent detection auxiliary device of the present invention. The dynamic detection and narrow-gap furnace tube intelligent detection auxiliary device also includes support wheels 12. The support wheels 12 are installed on the side of the main body 1 facing the pipe. In this embodiment, support wheels 12 are provided at both the upper and lower ends. The support wheels 12 support the main body 1 and prevent the main body 1 from directly contacting the pipe, thereby avoiding strong squeezing, friction and jamming between the main body 1 and the pipe. In some preferred embodiments, the curvature of the outer arc surface of the drive wheel 10 and the support wheel 12 is slightly smaller than the curvature of the outer cylindrical surface of the pipe. On the one hand, this ensures the stability of the drive wheel 10 and the support wheel 12 on the pipe. On the other hand, it ensures that the drive wheel 10 and the support wheel 12 have sufficient friction with the outer surface of the pipe to drive the main body 1 to move along the axial direction of the pipe.

[0035] As a preferred implementation method, such as Figure 1As shown, the drive mechanism includes two drive units. The narrow-gap furnace tube intelligent detection auxiliary device also includes two speed encoders 11 corresponding to each drive unit. The speed encoders 11 are used to measure the axial movement speed of the main body 1 along the pipe under the drive of the drive units. In this embodiment, one drive unit is provided at each of the upper and lower ends, and each drive unit is provided with one speed encoder 11. The two speed encoders 11 are used to measure the movement speed of the two ends of the main body 1 along the pipe under the drive of the drive units. A controller can be added outside the narrow-gap furnace tube intelligent detection auxiliary device. The controller and the drive motor 9 can communicate via cable or via a wireless communication component 14. The controller controls the two drive motors 9 according to the measurement results of the two speed encoders 11, so that the two ends of the main body 1 move synchronously, effectively controlling the detection speed, ensuring the implementation of the detection work, improving the movement accuracy of the narrow-gap furnace tube intelligent detection auxiliary device, and making the positioning more accurate. Based on the above technical solution of the present invention, it can be understood that multiple drive units can be provided.

[0036] As a preferred implementation method, such as Figure 3 As shown, it also includes a camera 15 for monitoring damage to the outer wall of the pipe and / or a camera socket for mounting the camera 15. This embodiment is provided with multiple cameras 15 corresponding one-to-one with the sensor mounting card 2. The camera 15 facilitates the placement of the sensor in the detection working position and the detection of whether the sensor 3 is in the normal working position. It can also observe and record the surface condition of the outer wall of the pipe.

[0037] This invention provides a preferred embodiment, such as... Figure 2As shown, all parts of this embodiment are made of non-ferromagnetic materials to avoid interference with the detection work. The narrow gap furnace tube intelligent detection auxiliary device of this embodiment includes a main body 1, an angle adjustment mechanism and a sensor mounting card 2, a handheld operating terminal 7, a drive unit, a support wheel 12, a speed encoder 11 and a camera 15. The sensor mounting card 2 is equipped with a sensor 3 and related devices to ensure the normal operation of the sensor 3. The main body 1 has multiple holes 101 along its central axis. The length direction of the holes 101 is consistent with the orientation of the central axis of the main body 1. The length of the holes 101 is about 6 mm longer than the length of the sensor mounting card 2. The width of the holes 101 is kept small while ensuring the free movement of the sensor mounting card 2. A connector 201 is provided on the upper part of one end of the sensor mounting card 2 that passes through the hole 101. A sliding groove 106 is provided on the side of the main body away from the sensor 3. The pin 202 passes through the corresponding hole on the connector 201 and is slidably disposed in the sliding groove 106. The angle adjustment mechanism includes a connecting wire 4 and a reset spring 5. The upper part of the sensor mounting card 2 near the sensor 3 is connected to the main body 1 through the reset spring 5, and the connecting wire 4 is connected to the end of the sensor mounting card 2 away from the sensor 3. On the side of the main body 1 away from the sensor 3, there are also multiple cable management holes 102 to prevent the connecting wires 4 from moving around, and pulleys 103 to facilitate the positioning and sliding of the connecting wires 4. The connecting wires 4 of each sensor mounting card 2 are gathered into a connecting wire bundle 6 after passing through the pulleys 103 and the cable management holes 102. One end of the main body 1 is provided with a mounting hole 106. The handheld operating end 7 includes an operating rod 701 and a handle 702. The handle 702 is connected to the main body 1 through the mounting hole 106. The mounting hole 106 can also be used to install an extension piece. The extension piece is used to extend the main body 1 so that the narrow gap furnace tube intelligent detection auxiliary device can detect more pipes at the same time. The extension piece is also provided with a mounting hole 106 to install the handheld operating end 7 or to further extend it. The end of the handle 702 away from the main body 1 is hinged to the operating rod 701. The movable end of the operating rod 701 is connected to the connecting wire bundle 6.Pressing the operating lever 701 pulls the connecting harness 6, which in turn pulls the end of the sensor mounting clip 2 away from the sensor 3, causing the sensor 3 to swing downwards. This positions the end of the sensor 3 away from the sensor mounting clip 2 suitable for insertion into the gap of a narrow-gap, densely packed furnace tube. After inserting it into the gap, releasing the operating lever 701 causes the sensor 3 to swing upwards back to a horizontal position under the action of the return spring 5. This allows the sensor 3 to rotate around the central axis of the corresponding detection tube, thus placing the sensor 3 into the gap of the furnace tube. This device can insert the sensor 3 into multiple gaps of narrow-gap, densely packed furnace tubes. This design avoids damage to the pipes caused by pulling and unpulling the tube screen, and is easy to operate, reducing the labor and time costs associated with opening and closing the pipes. It is highly efficient. Furthermore, because the pin 202 can slide along the sliding groove 106 and a return spring 5 connects the sensor mounting clip 2 and the main body, the sensor mounting clip 2 can move elastically along the axial direction of the main body 1. This ensures that the sensor 3 maintains effective contact with the pipe during the process of placing the sensor into the pipe gap and during the movement of the narrow-gap furnace tube intelligent detection auxiliary device along the pipe, without generating strong pressure, thus preventing friction and jamming between the sensor 3 and the pipe. A camera 15 is also installed at the corresponding position of each sensor 3 to observe and record the surface condition of the outer wall of the pipe, facilitating the placement of the sensor 3 in the detection working position and checking whether the sensor 3 is working in the normal operating position. A drive unit is installed at each end of the main body 1, corresponding to one side of the sensor 3. Each drive unit includes a drive motor 9 and a drive wheel 10. The drive wheels 10 at both ends hang the main body 1 on the pipe. The curvature of the outer arc surface of the drive wheel 10 is slightly less than the curvature of the outer surface of the pipe to ensure that the main body 1 is securely hung on the pipe and that there is sufficient friction between the drive wheel 10 and the outer surface of the pipe, so that the drive wheel 10, driven by the drive motor 9, can move the main body 1 axially along the pipe. Speed ​​encoders 11 are also installed at the locations of the drive wheels 10 at both ends of the main body 1 to measure the axial movement speed of the main body 1 at both ends under the drive of the drive wheels 10. Based on the measured data, the drive motors 9 at both ends are controlled to control the synchronous movement of the two ends of the main body 1. This allows the narrow-gap furnace tube intelligent detection auxiliary device to automatically move along the pipe at a predetermined detection speed, achieving automatic detection of narrow-gap dense furnace tubes. Support wheels 12 are also provided at both ends of the main body 1 near the sensor 3. The curvature of the outer arc surface of the support wheel 12 is slightly smaller than the curvature of the outer surface of the pipe, so that the support wheel 12 can support the main body 1 more stably, avoid the main body 1 from directly contacting the pipe, and thus avoid strong squeezing, friction and jamming between the main body 1 and the pipe.A battery power supply component 13 and a wireless communication component 14 are located on the side of the main body 1 furthest from the sensor 3. The power supply modes of this narrow-gap furnace tube intelligent detection auxiliary device include cable power supply and battery power supply, and the communication modes include wireless communication and cable communication. Normally, cable power supply and cable communication are used. However, when the device is detecting in a special location where cable power supply and communication are difficult, battery power supply and wireless communication are used instead. The wireless communication component 14 receives control signals and transmits them to the controller. The controller then controls the drive motor 9 to rotate the drive wheel 10, causing it to automatically penetrate the special location at a predetermined speed for detection. A folded edge 105 is provided on the side of the main body 1 furthest from the sensor 3 to shield and protect components such as the connecting wire 4, battery power supply component 13, pulley 103, and wireless communication component 14. This narrow-gap furnace tube intelligent detection auxiliary device also includes a manual detection mode, allowing operators to manually move the device for repeated detection at a single location, verifying the correlation between detection speed, dynamic signals, peak signals, etc., to more accurately determine the detection results. The narrow-gap furnace tube intelligent detection auxiliary device of this preferred embodiment can automatically detect multiple pipe gaps of narrow-gap dense furnace tubes at the same time without pulling and unpulling the tube screen, avoiding the damage caused by pulling and unpulling the tube screen, reducing the labor and time costs of pulling and unpulling the tube screen, improving detection efficiency, and can go deep into special working positions for detection.

[0038] As can be seen from the above description, the advantages of the present invention are as follows: First, the intelligent detection auxiliary device for narrow-gap furnace tubes of the present invention can detect the gap of narrow-gap furnace tubes without pulling or untying the tubes, avoiding damage to the tubes and improving detection efficiency; Second, the intelligent detection auxiliary device for narrow-gap furnace tubes can simultaneously detect multiple pipes of densely packed narrow-gap furnace tubes; Third, the drive unit enables automatic detection and has flexible power supply and communication modes, allowing the intelligent detection auxiliary device for narrow-gap furnace tubes to enter special working positions for automatic detection; Fourth, the sliding groove and return spring can prevent the sensor from being squeezed and jammed by the pipe during sensor placement and device movement; Fifth, the support wheels can prevent the main body and pipe from being squeezed and jammed during device movement; Sixth, speed encoders are set at both ends of the main body to keep the moving speed of both ends of the main body synchronized, making the movement process smoother and easier to position; Seventh, a camera is installed at the corresponding position of the sensor to observe and record the surface condition of the outer wall of the tube, further improving the accuracy of detection and also facilitating the guidance of placing the sensor in the working position and monitoring whether the sensor is in the normal working position.

[0039] The preferred embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the specific details of the above embodiments. Within the scope of the technical concept of the present invention, various simple modifications can be made to the technical solution of the present invention, and these simple modifications all fall within the protection scope of the present invention.

[0040] It should also be noted that the various specific technical features described in the above embodiments can be combined in any suitable manner without contradiction. To avoid unnecessary repetition, the present invention will not describe the various possible combinations separately.

[0041] Furthermore, various different embodiments of the present invention can be combined in any way, as long as they do not violate the spirit of the present invention, they should also be regarded as the content disclosed by the present invention.

Claims

1. A smart detection auxiliary device for narrow-gap furnace tubes, characterized in that, The device includes a main body (1), an angle adjustment mechanism, and a sensor mounting clip (2) for mounting a sensor (3). The sensor mounting clip (2) is swayably mounted on the main body (1). The angle adjustment mechanism is used to drive the sensor mounting clip (2) to sway so that the sensor (3) rotates around the central axis of its corresponding detection tube, so that the sensor (3) can be smoothly inserted into the gap between the detection tube and the adjacent furnace tube to reach the detection working position. The sensor mounting card (2) is provided with a detachable connection structure for detachably mounting the sensor (3); The main body (1) has a hole (101) at its central axis through which the sensor mounting card (2) can pass freely. The sensor mounting card (2) is disposed in the hole (101). The size of the hole (101) is set to be suitable for the sensor mounting card (2) to move freely therein. A connector (201) is provided at the upper end of the side of the sensor mounting card (2) that passes through the hole (101). The connector (201) is hinged to the main body (1). The main body (1) is provided with a sliding groove (106). The hinged end of the connector (201) is slidably disposed in the sliding groove (106).

2. The intelligent detection auxiliary device for narrow-gap furnace tubes according to claim 1, characterized in that, The angle adjustment mechanism includes a connecting line (4) and a reset spring (5). The connecting line (4) is connected to the sensor mounting card (2) so that by pulling the connecting line (4), the sensor mounting card (2) can be controlled to swing around its hinge end, thereby causing the sensor (3) to rotate around the central axis of the corresponding detection tube. The reset spring (5) is provided between the sensor mounting card (2) and the main body (1). The reset spring (5) provides a spring force to drive the sensor mounting card (2) to rotate in the opposite direction around its hinge end, thereby causing the sensor (3) to rotate in the opposite direction around the central axis of the corresponding detection tube.

3. The intelligent detection auxiliary device for narrow gap furnace tubes according to claim 2, characterized in that, The body (1) includes multiple sensor mounting clips (2), and multiple holes (101) corresponding to the sensor mounting clips (2) are provided along the central axis of the body (1). The angle adjustment mechanism includes multiple connecting lines (4) corresponding to the sensor mounting clips (2). The left side surface of the body (1) is provided with multiple cable management holes (102) to prevent the connecting lines (4) from moving and pulleys (103) to facilitate the positioning and sliding of the connecting lines (4). The cable management holes (102) are used to gather all the connecting lines (4) together to form a connecting cable bundle (6).

4. The intelligent detection auxiliary device for narrow gap furnace tubes according to claim 3, characterized in that, It also includes a handheld operating end (7), which includes an operating rod (701) and a handle (702). One end of the main body (1) is provided with a mounting hole (104) for mounting the handle (702). The end of the handle (702) away from the main body (1) is hinged to one end of the operating rod (701), and the other end of the operating rod (701) is connected to the connecting wire harness (6).

5. The intelligent detection auxiliary device for narrow gap furnace tubes according to claim 1, characterized in that, It also includes a drive mechanism for driving the body (1) to move axially along the furnace tube, the drive mechanism including at least one drive unit for driving the body (1) to move axially along the furnace tube.

6. The intelligent detection auxiliary device for narrow-gap furnace tubes according to claim 5, characterized in that, The drive unit includes a drive wheel (10) and a drive motor (9) for driving the drive wheel (10) to rotate. The outer arc shape of the drive wheel (10) is used to fit against the outer surface of the furnace tube. The main body (1) is provided with a support wheel (12) on the side facing the furnace tube.

7. The intelligent detection auxiliary device for narrow-gap furnace tubes according to claim 6, characterized in that, It also includes a battery power supply component (13) and a wireless communication component (14). The drive mechanism includes two drive units respectively disposed at the upper and lower ends of the main body (1). The drive unit includes a speed encoder (11) for measuring the movement of the main body (1) relative to the outer surface of the furnace tube. The drive motor (9) and the speed encoder (11) are both connected to the battery power supply component (13) and the wireless communication component (14).

8. The intelligent detection auxiliary device for narrow gap furnace tubes according to claim 1, characterized in that, It also includes a camera (8) for capturing information on damage to the outer surface of the furnace tube and / or a camera port for mounting the camera (8).

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