Movable ultrasonic guided wave long-distance efficient pipeline descaling equipment

Abstract

The invention provides movable ultrasonic guided wave long-distance pipeline descaling equipment which comprises an external supporting ring arranged on the outer side of a pipeline, and at least one power control walking mechanism is arranged on the external supporting ring. At least one descaling mechanism connected to the external supporting ring and at least one detection mechanism connected to the external supporting ring are arranged between the external supporting ring and the pipeline; the descaling mechanism comprises an ultrasonic descaling head and a lifting type angle adjusting assembly, and the ultrasonic descaling head is connected with the external supporting ring through the lifting type angle adjusting assembly; the detection mechanism comprises an ultrasonic detection head and a lifting type angle adjusting assembly, and the ultrasonic detection head is connected with the external supporting ring through the lifting type angle adjusting assembly; the descaling mechanism, the detection mechanism and the power control walking mechanism are all connected with the master control module, and the master control module is connected with the upper computer. The descaling mechanism acts on the outer wall of the pipeline for descaling, production halt caused by the fact that normal use in the pipeline is affected is avoided, meanwhile, capital cost spent on equipment disassembly is avoided, and scaling on the inner wall of the long-distance pipeline is efficiently and automatically removed.

Description

Technical Field

[0001] The present invention relates to the technical field of pipeline descaling, and in particular to a pipeline descaling device and a descaling method. Background Art

[0002] Long-distance transmission pipelines are widely used in energy transmission, chemical industry, water conservancy and other fields. Scaling on the inner wall of the pipeline is an inevitable problem during operation. Scaling on the inner wall of the pipeline will block the pipeline and affect the transportation efficiency, and even cause safety accidents such as pipeline deformation and bursting.

[0003] The existing descaling methods mainly include mechanical method, high-pressure water jet method, chemical cleaning method, pipe cleaning method and ultrasonic descaling method. Mechanical method, high-pressure water jet method and pipe cleaning method all require shutdown of production, while chemical cleaning method may produce residue. Ultrasonic descaling method has strict requirements on the installation of ultrasonic transducer, and the action range of a single ultrasonic transducer is only tens of centimeters. In contrast, ultrasonic guided waves have a larger coverage area due to propagation on the pipe wall. Although it has the advantage of long propagation distance, it still produces energy attenuation as the distance increases.

[0004] The possible attenuation of ultrasonic guided waves propagating on the pipe wall includes absorption, scattering and leakage. The cavitation effect caused by the energy leaked into the pipe liquid impacts the attachments on the inner wall of the pipe, which plays a role in removing the scale on the inner wall of the pipe. However, similar to power ultrasound, the effect of ultrasonic guided wave pipeline descaling is related to the power. However, as the ultrasonic guided wave propagates on the pipe wall, the energy of the guided wave will gradually decay. In order to solve the problem that ultrasonic guided waves will produce energy attenuation with the increase of distance, a movable ultrasonic guided wave long-distance pipeline efficient descaling device is proposed, including an external support ring, a descaling mechanism, a detection mechanism and a power control mechanism. The device can move on the outer wall of the pipe and automatically detect the scale inside the pipe. After moving to the fixed point of the pipe scale for descaling, it continues to detect and move to the next scale point to work, so as to automatically detect and descale the long-distance pipeline, solving the problem of limited distance of ultrasonic guided wave descaling operation in the long-distance pipeline.

[0005] The utility model with application number 201020267367.7 provides a long pipeline high-efficiency ultrasonic anti-scaling / de-scaling device, which is used to remove / prevent dirt in the transport pipeline, and includes a power signal control mechanism and a plurality of actuators connected in the pipeline, and the power signal control mechanism is electrically connected to the actuators through cables; the actuators further include a plurality of transducers, which are uniformly annularly arrayed and inserted on a variable amplitude tube, and the inside of the transducers is isolated from the working medium in the pipe by an inner liner pipe, and has the same strength as the original pipeline, and is fixed by a pre-tightening flange combination on the outside, and the transducers are electrically connected to the power signal control mechanism through cables. According to the long pipeline high-efficiency ultrasonic anti-scaling / de-scaling device of the utility model, not only can the obvious descaling effect of the long-distance pipeline be achieved, but also the formation of dirt can be prevented, and the corrosion of metal by dissolved oxygen in water can be prevented, while reducing resistance and increasing flow rate. However, the device can only descale in fixed areas and descaling long pipes is achieved by setting transducers at certain intervals, which is costly and difficult to maintain. Summary of the invention

[0006] In view of the technical problem that energy attenuation affects the descaling distance in the prior art long-distance pipeline ultrasonic guided wave descaling process, the present invention proposes a movable ultrasonic guided wave long-distance pipeline descaling device to achieve efficient and automatic removal of inner wall scale in long-distance pipelines.

[0007] In order to achieve the above-mentioned object, the technical solution of the present invention is implemented as follows: a movable ultrasonic guided wavelength distance pipeline descaling device, comprising an external support ring arranged on the outside of the pipeline, at least one power-controlled walking mechanism is arranged on the external support ring, at least one descaling mechanism connected to the external support ring and at least one detection mechanism connected to the external support ring are arranged between the external support ring and the pipeline; The descaling mechanism includes an ultrasonic descaling head and a lifting angle adjustment component, and the ultrasonic descaling head is connected to the external support ring through the lifting angle adjustment component; The detection mechanism includes an ultrasonic detection head and a lifting angle adjustment component, and the ultrasonic detection head is connected to the external support ring through the lifting angle adjustment component; The descaling mechanism, the detection mechanism and the power control walking mechanism are all connected to the general control module, and the general control module is connected to the host computer.

[0008] An annular groove is arranged on the inner annular surface of the external support ring, and an annular support rod is arranged in the annular groove. One end of the annular support rod is slidably matched with the annular groove through a slider, and a pulley I is arranged at the other end of the annular support rod.

[0009] The external support ring is an annular member composed of a plurality of fixedly connected circular ring assemblies; the circular ring support rods are arranged on the corresponding circular ring assemblies along the circumferential direction.

[0010] The lifting-type angle adjustment component includes a solenoid valve lifting rod, telescopic rods are respectively arranged on both sides of the solenoid valve lifting rod, the upper end of the solenoid valve lifting rod is slidably matched with the annular groove, one end of the telescopic rod is hinged with a guide block, the guide block is slidably arranged in the annular groove, and the other end of the telescopic rod is hinged to the lower part of the solenoid valve lifting rod; the lower end of the solenoid valve lifting rod is fixed with an ultrasonic descaling head or an ultrasonic detection head.

[0011] The ultrasonic descaling head includes a wedge-shaped seat and an ultrasonic guided wave transducer I arranged on the wedge-shaped seat, the ultrasonic detection head includes an ultrasonic guided wave sensor II, the solenoid valve lifting rod, the ultrasonic guided wave transducer I and the ultrasonic guided wave sensor II are all connected to the general control module; the ultrasonic guided wave sensor II is an ultrasonic guided wave sensor with integrated transceiver.

[0012] The power-controlled walking mechanism includes a fixed block fixed on an external support ring and a power control unit arranged on the fixed block. A connecting rod is arranged on the fixed block. A pulley II is arranged at one end of the connecting rod away from the power control unit. The power control unit drives the pulley II to move along the pipeline through a transmission mechanism.

[0013] The power control unit includes a microprocessor module and a drive motor. The drive motor and the main control module are both connected to the microprocessor module. The transmission mechanism includes a transmission wheel III connected to the drive motor and a transmission wheel I coaxially arranged with the pulley II. The transmission wheel III is connected to the transmission wheel I through a transmission belt.

[0014] The connecting rod is an L-shaped connecting rod, and a transmission wheel II is arranged at the turning point of the L-shaped connecting rod. The transmission wheel III and the transmission wheel I are connected with the transmission wheel II through a transmission belt.

[0015] A limiting groove is provided at the bottom of the fixing block, and the limiting groove matches with a limiting protrusion provided on the outer ring surface of the external supporting ring.

[0016] A descaling method for a movable ultrasonic waveguide long-distance pipeline descaling device: When the location of the scale layer is determined, the external support ring is installed at the location of the scale layer, and the solenoid valve lifting rod and the telescopic rod are adjusted by the main control module to make the ultrasonic guided wave transducer I close to the outer wall of the pipeline. The ultrasonic guided wave transducer I emits a sinusoidal signal modulated by the Hanning window to cause cavitation effect in the liquid in the pipeline, thereby removing the scale layer in the pipeline; When the location of the scale layer is uncertain: S1: Install the external support ring on the outside of the pipeline, and adjust the solenoid valve lifting rod and telescopic rod through the main control module to make the ultrasonic guided wave sensor II close to the outer wall of the pipeline; S2: The upper computer controls the general control module and uses the ultrasonic guided wave sensor II to detect the scale layer in the pipeline. When the scale layer is detected, the solenoid valve lifting rod is controlled to lift up to separate the ultrasonic guided wave sensor II from the pipeline. S4: Control the power control unit to drive pulley II, drive the descaling equipment to move to the scale layer, adjust the solenoid valve lifting rod and telescopic rod through the main control module to make the ultrasonic guided wave transducer I close to the outer wall of the pipeline, and use the ultrasonic guided wave transducer I to send a sinusoidal signal modulated by the Hanning window to cause the liquid in the pipeline to produce a cavitation effect, thereby removing the scale layer in the pipeline; S5: After the descaling is completed, the ultrasonic guided wave transducer I stops emitting sinusoidal signals, and the solenoid valve lifting rod and telescopic rod are adjusted to make the ultrasonic guided wave sensor II close to the pipeline to detect the descaling effect and find the next scale layer; S6: Repeat steps S2-S5 until the descaling of the pipeline is completed.

[0017] The beneficial effects of the present invention are as follows: the present invention has a sophisticated structure, and the descaling equipment is driven by a power-controlled walking mechanism to achieve efficient and automatic removal of inner wall scale in long-distance pipelines. In the present invention, the external support ring can be composed of a plurality of circular ring assemblies, and the number of circular ring assemblies can be increased or decreased according to the thickness of the pipeline. At the same time, the present invention utilizes the output signal of the ultrasonic guided wave sensor to cause the pressure change of the liquid in the pipeline to cause the cavitation nucleus to produce inertial cavitation, and the impact force released by the ruptured cavitation nucleus can effectively remove and peel off the scale layer attached to the inner wall of the pipeline. In addition, by replacing the ultrasonic guided wave sensor on the descaling equipment, the amplification power can be controlled without causing damage to the pipeline body structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0019] Figure 1 It is a structural schematic diagram of the present invention.

[0020] Figure 2 It is a schematic structural diagram of the external support ring of the present invention.

[0021] Figure 3 It is a structural schematic diagram of the descaling mechanism of the present invention.

[0022] Figure 4 It is a structural schematic diagram of the detection mechanism of the present invention.

[0023] Figure 5It is a structural schematic diagram of the power-controlled walking mechanism of the present invention.

[0024] Figure 6 It is a schematic diagram of the flow of the descaling method of the present invention.

[0025] In the figure, 1 is a pipeline, 2 is an external support ring, 21 is a circular ring assembly, 22 is a circular ring support rod, 23 is a slider, 24 is a protrusion, 3 is a descaling mechanism, 31 is an ultrasonic guided wave transducer I, 32 is a telescopic rod, 33 is a solenoid valve lifting rod, 34 is a slider, 35 is a wedge seat, 41 is an ultrasonic guided wave sensor II, 5 is a power control walking mechanism, 51 is a power control unit, 52 is a connecting rod, 53 is a pulley II, 54 is a mechanism connecting block, 55 is a transmission wheel I, 56 is a transmission wheel II, and 57 is a transmission wheel III. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0027] Example 1 like Figure 1As shown, a movable ultrasonic guided wave long-distance pipeline descaling device includes an external support ring 2 arranged on the outside of a pipeline 1, at least one power-controlled walking mechanism 5 is arranged on the external support ring 2, and at least one descaling mechanism 3 connected to the external support ring 2 and at least one detection mechanism 4 connected to the external support ring 2 are arranged between the external support ring 2 and the pipeline 1. The descaling mechanism 3 includes an ultrasonic descaling head and a lifting angle adjustment component, and the ultrasonic descaling head is connected to the external support ring 2 through the lifting angle adjustment component. The detection mechanism 4 includes an ultrasonic detection head and a lifting angle adjustment component, and the ultrasonic detection head is connected to the external support ring 2 through the lifting angle adjustment component. The descaling mechanism 3, the detection mechanism 4 and the power-controlled walking mechanism 5 are all connected to the main control module, and the main control module is connected to the host computer. Among them, the pipeline 1 is a liquid-filled pipeline in industrial production, the external support ring 2 is a descaling equipment frame, and the descaling mechanism 3 is mainly used to descale the inside of the pipeline or detect the scale layer through ultrasonic guided waves. The lifting angle adjustment component is mainly used to control the lifting of the ultrasonic descaling head and the ultrasonic detection head during descaling, and to lower the ultrasonic descaling head and the ultrasonic detection head during descaling or detection, so that the ultrasonic descaling head and the ultrasonic detection head are close to the surface of the pipeline 1. At the same time, during descaling or detection, the lifting angle adjustment component can be used to adjust the angle between the bottom surface of the ultrasonic descaling head and the ultrasonic detection head and the surface of the pipeline 1, so that the ultrasonic descaling head and the ultrasonic detection head are tangent to the surface of the pipeline 1 to prevent the ultrasonic guided wave from being damaged during the conduction process. The power control walking mechanism 5 is mainly used to drive the descaling equipment to move along the pipeline 1, so as to realize the cleaning of the entire pipeline 1 by using the descaling equipment.

[0028] like Figure 2 As shown, an annular groove is provided on the inner annular surface of the external support ring 2, and an annular support rod 22 is provided in the annular groove. One end of the annular support rod 22 is slidably matched with the annular groove through a slider 23, and the other end of the annular support rod 22 is provided with a pulley I 25. In this embodiment, the external support ring 2 can adopt an integrated annular structure, and the annular support rod 22 is matched with the annular groove through a slider. The annular support rod 22 can be manually pushed to change its position in the annular groove to achieve its position adjustment.

[0029] Example 2 A movable ultrasonic waveguide long-distance pipeline descaling device, in this embodiment, the external support ring 2 is a ring-shaped member composed of a plurality of fixedly connected circular ring assemblies 21; two adjacent circular ring assemblies 21 are fixedly connected by flange bolts, and other fixing methods such as welding can also be used as needed. The circular ring support rods 22 are arranged on the corresponding circular ring assemblies 21 along the circumferential direction to ensure the stability of the circular ring assemblies 21.

[0030] The circular ring support rod 22 is mainly used to support the circular ring formed by the circular ring assembly 21. At the same time, the circular ring support rod 22 has the same length, which can ensure that the center of the descaling device coincides with the center of the pipeline 1, preventing the descaling mechanism 3 from deviating and affecting the descaling effect.

[0031] like Figure 3 As shown, the lifting angle adjustment assembly includes a solenoid valve lifting rod 33, and telescopic rods 32 are respectively arranged on both sides of the solenoid valve lifting rod 33. By adjusting the extension length of the two telescopic rods on both sides, the inclination angle of the solenoid valve lifting rod 33 is changed to achieve the purpose of adjusting the working angle of the ultrasonic descaling head or the ultrasonic detection head. The upper end of the solenoid valve lifting rod 33 is slidably matched with the annular groove, and one end of the telescopic rod 32 is hinged with a guide block 34, which is slidably arranged in the annular groove. When the position of the descaling mechanism 3 or the detection mechanism 4 needs to be adjusted, the telescopic rod 32 and the solenoid valve lifting rod 33 can be driven to move by sliding the upper end of the solenoid valve lifting rod 33 and the guide block 34, thereby adjusting the position of the descaling mechanism 3 or the detection mechanism 4. The other end of the telescopic rod 32 is hinged to the lower part of the solenoid valve lifting rod 33. When the solenoid valve lifting rod 33 is extended or lifted, one end of the telescopic rod 32 hinged to the solenoid valve lifting rod 33 will change the angle between the telescopic rod 32 and the solenoid valve lifting rod 33 in accordance with the action of the solenoid valve lifting rod 33, and extend or contract under the stretching or compression of the solenoid valve lifting rod 33. An ultrasonic descaling head or an ultrasonic detection head is fixed to the lower end of the solenoid valve lifting rod 33. The ultrasonic descaling head includes a wedge-shaped seat 35 and an ultrasonic guided wave transducer Ⅰ31 disposed on the wedge-shaped seat. Depending on the model of the pipeline 1, the wedge-shaped seat can be replaced to make it fit the outer wall of the pipeline more closely and increase the energy transmission efficiency. The solenoid valve lifting rod 33 and the ultrasonic guided wave transducer Ⅰ31 are both connected to the main control module.

[0032] Among them, the solenoid valve lifting rod 33 is mainly used to control the ultrasonic guided wave transducer I 31 to be close to or away from the pipeline 1, ensuring that the ultrasonic guided wave transducer I 31 is close to the pipeline 1 when outputting the sinusoidal signal to prevent energy loss. When the descaling equipment moves, the solenoid valve lifting rod 33 lifts the ultrasonic guided wave transducer I 31 to prevent the ultrasonic guided wave transducer I 31 from contacting the pipeline 1 during movement and causing wear. The telescopic rod 32 is mainly used to limit the position of the solenoid valve lifting rod 33 to prevent the solenoid valve lifting rod 33 from breaking and being damaged during contact with the pipeline 1. At the same time, through the cooperation of the two telescopic rods 32, the angle between the ultrasonic guided wave transducer I 31 and the surface of the pipeline 1 can be controlled to ensure that the ultrasonic guided wave transducer I 31 is in tangential contact with the pipeline 1. The ultrasonic guided wave transducer I 31 is mainly used to output a sinusoidal signal to descale the pipeline 1.

[0033] like Figure 4As shown, according to different actual needs, the ultrasonic guided wave transducer I 31 on the lower side of the other end of the solenoid valve lifting rod 33 can be replaced with an ultrasonic detection head. The ultrasonic detection head includes an ultrasonic guided wave sensor II 41, which is connected to the main control module; the ultrasonic guided wave sensor II 41 is an ultrasonic guided wave sensor with integrated transceiver. The ultrasonic guided wave sensor II 41 is mainly used to send and receive ultrasonic signals, and transmit the collected ultrasonic signals to the upper computer to analyze the location of the scale layer.

[0034] like Figure 5 As shown, the power control walking mechanism 5 includes a fixed block 54 fixed on the external support ring 2 and a power control unit 51 arranged on the fixed block 54, a connecting rod 52 is arranged on the fixed block 54, and the connecting rod 52 is fixedly connected to the fixed block 54 by screws, and a pulley II 53 is arranged at one end of the connecting rod 52 away from the power control unit 51, and the power control unit 51 drives the pulley II 53 to move along the pipeline 1 through a transmission mechanism. Among them, the transmission mechanism can be selected from a belt drive or a chain drive.

[0035] The other structures and principles are the same as those in Example 1.

[0036] Example 3 A movable ultrasonic waveguide long-distance pipeline descaling device, in this embodiment, in order to cooperate with the external support ring 2 and prevent the connecting rod 52 from colliding with the external support ring 2, the connecting rod 52 is an L-shaped connecting rod, and a transmission wheel II 56 is arranged at the turning point of the L-shaped connecting rod, and the transmission wheel III 57 and the transmission wheel I 55 are connected to the transmission wheel II 56 through a transmission belt. A limiting groove is provided at the bottom of the fixed block 54, and the limiting groove cooperates with the limiting protrusion 24 arranged on the outer ring surface of the external support ring 2 to achieve plug-in or snap-fit ​​positioning, so that the power control unit 51 is evenly installed on the external support ring 2, ensuring that the descaling device can stably move along the pipeline 1.

[0037] Among them, a notch is provided on the lower side of the fixing block 54, which is connected to the protrusion on the outer side of the ring assembly 21 through the notch, so that the power control walking mechanism 5 is fixed on the descaling device. In order to further ensure the stability of the fixing block 54, bolts can be used to reinforce the lower part of the fixing block 54 and the protrusion. The power control unit 51 includes a microprocessor module and a drive motor. The drive motor and the general control module are both connected to the microprocessor module. The transmission mechanism includes a transmission wheel III 57 connected to the drive motor and a transmission wheel I 55 coaxially arranged with the pulley II 53. The transmission wheel III 57 is connected to the transmission wheel I 55 through a transmission belt. The microprocessor module is mainly used to control the drive motor according to the command of the general control module. The drive motor is mainly used to drive the transmission shaft to rotate. The rotating shaft is mainly used to drive the transmission wheel I 55 to rotate, and then drive the pulley II 53 to rotate.

[0038] As a preferred solution, the connecting rod 52 is an L-shaped connecting rod, and a transmission wheel II 56 is arranged at the turning point of the L-shaped connecting rod, and the transmission wheel III 57 and the transmission wheel I 55 are connected to the transmission wheel II 56 through a transmission belt. The pulley II 53 can be an ordinary pulley or a universal Furley wheel. When the pulley II 53 uses a universal Furley wheel, the pipeline descaling device can rotate along the pipeline 1 in a circular direction, thereby driving the ultrasonic guided wave transducer I 31 and the ultrasonic guided wave sensor II 41 to move around the pipeline 1, and the user can manually adjust it to more accurately lock and remove the scale layer.

[0039] When the descaling device moves, the microprocessor module of the power control unit 51 controls the driving motor to rotate, and the transmission shaft connected to the driving motor drives the transmission wheel Ⅰ 55 to rotate, and the transmission belt wrapped around the outside of the transmission wheel Ⅰ 55 moves. The transmission belt drives the transmission wheel Ⅱ 56 and the transmission wheel Ⅲ 57 on the connecting rod 52 to rotate, and the transmission wheel Ⅲ 57 drives the pulley Ⅱ 53 to rotate, thereby driving the descaling device to move on the pipeline.

[0040] The other structures and principles are the same as those in Example 2.

[0041] Example 4 A method for using the movable ultrasonic waveguide wavelength-distance pipeline descaling device as described in the above embodiment 2 or 3, such as Figure 6 shown.

[0042] When the location of the scale layer is determined, the external support ring 2 is installed at the location of the scale layer, and the solenoid valve lifting rod 33 and the telescopic rod 32 are adjusted by the main control module to make the ultrasonic guided wave transducer I 31 close to the outer wall of the pipeline 1, and the ultrasonic guided wave transducer I 31 emits a sinusoidal signal energy modulated by the Hanning window to cause a cavitation effect in the liquid in the pipeline, thereby removing the scale layer in the pipeline 1; When the location of the scale layer is uncertain: S1: Install the external support ring 2 on the outside of the pipeline 1, and adjust the solenoid valve lifting rod 33 and the telescopic rod 32 through the main control module to make the ultrasonic guided wave sensor II 41 close to the outer wall of the pipeline 1.

[0043] S2: The upper computer controls the overall control module and uses the ultrasonic guided wave sensor II 41 to detect the scale layer in the pipeline 1. When the scale layer is detected, the solenoid valve lifting rod 33 is controlled to lift up, so that the ultrasonic guided wave sensor II 41 is separated from the pipeline 1.

[0044] S4: Control the power control unit 51 to drive the pulley II 53, drive the descaling equipment to move to the scale layer, adjust the solenoid valve lifting rod 33 and the telescopic rod 32 through the main control module to make the ultrasonic guided wave transducer I 31 close to the outer wall of the pipeline 1, and use the ultrasonic guided wave transducer I 31 to emit sinusoidal signal energy modulated by the Hanning window to cause cavitation effect in the liquid in the pipeline, so as to remove the scale layer in the pipeline 1.

[0045] S5: After the descaling is completed, the ultrasonic guided wave transducer I 31 stops emitting sinusoidal signal energy, and the solenoid valve lifting rod 33 and the telescopic rod 32 are adjusted to make the ultrasonic guided wave sensor II 41 close to the pipeline 1 to detect the descaling effect and find the next scale layer.

[0046] S6: Repeat steps S2-S5 until the descaling work on the pipeline 1 is completed.

[0047] The other structures and principles are the same as those in Example 3.

[0048] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A movable ultrasonic waveguide long-distance pipeline descaling device, characterized in that: The invention comprises an external support ring (2) arranged outside a pipeline (1), at least one power-controlled walking mechanism (5) being arranged on the external support ring (2), at least one descaling mechanism (3) connected to the external support ring (2) and at least one detection mechanism (4) connected to the external support ring (2) being arranged between the external support ring (2) and the pipeline (1); The descaling mechanism (3) comprises an ultrasonic descaling head and a lifting angle adjustment component, and the ultrasonic descaling head is connected to the external support ring (2) via the lifting angle adjustment component; The detection mechanism (4) comprises an ultrasonic detection head and a lifting angle adjustment component, and the ultrasonic detection head is connected to the external support ring (2) via the lifting angle adjustment component; The descaling mechanism (3), the detection mechanism (4) and the power control walking mechanism (5) are all connected to the general control module, and the general control module is connected to the host computer.

2. The movable ultrasonic waveguide long-distance pipeline descaling device according to claim 1 is characterized in that: An annular groove is provided on the inner annular surface of the outer support ring (2), a circular support rod (22) is provided in the circular groove, one end of the circular support rod (22) is slidably engaged with the annular groove via a slider (23), and a pulley I (25) is provided at the other end of the circular support rod (22).

3. The movable ultrasonic waveguide long-distance pipeline descaling device according to claim 2 is characterized in that: The outer support ring (2) is an annular member composed of a plurality of fixedly connected annular assemblies (21); the annular support rods (22) are arranged on the corresponding annular assemblies (21) along the circumferential direction.

4. The movable ultrasonic waveguide long-distance pipeline descaling device according to claim 2 or 3, characterized in that: The lifting angle adjustment assembly comprises a solenoid valve lifting rod (33), telescopic rods (32) are respectively arranged on both sides of the solenoid valve lifting rod (33), the upper end of the solenoid valve lifting rod (33) is slidably matched with the annular groove, one end of the telescopic rod (32) is hinged with a guide block (34), the guide block (34) is slidably arranged in the annular groove, and the other end of the telescopic rod (32) is hinged to the lower part of the solenoid valve lifting rod (33); an ultrasonic descaling head or an ultrasonic detection head is fixed to the lower end of the solenoid valve lifting rod (33).

5. The movable ultrasonic waveguide long-distance pipeline descaling device according to claim 4 is characterized in that: The ultrasonic descaling head comprises a wedge-shaped seat (35) and an ultrasonic guided wave transducer I (31) arranged on the wedge-shaped seat, the ultrasonic detection head comprises an ultrasonic guided wave sensor II (41), the solenoid valve lifting rod (33), the ultrasonic guided wave transducer I (31) and the ultrasonic guided wave sensor II (41) are all connected to the main control module; the ultrasonic guided wave sensor II (41) is an ultrasonic guided wave sensor with a transmitting and receiving integrated function.

6. The movable ultrasonic waveguide long-distance pipeline descaling device according to claim 1 or 5, characterized in that: The power-controlled walking mechanism (5) comprises a fixed block (54) fixed on the external support ring (2) and a power control unit (51) arranged on the fixed block (54); a connecting rod (52) is arranged on the fixed block (54); a pulley II (53) is arranged at one end of the connecting rod (52) away from the power control unit (51); the power control unit (51) drives the pulley II (53) to move along the pipeline (1) through a transmission mechanism.

7. The movable ultrasonic waveguide long-distance pipeline descaling device according to claim 6 is characterized in that: The power control unit (51) comprises a microprocessor module and a drive motor, the drive motor and the main control module are both connected to the microprocessor module, the transmission mechanism comprises a transmission wheel III (57) connected to the drive motor and a transmission wheel I (55) coaxially arranged with the pulley II (53), and the transmission wheel III (57) is connected to the transmission wheel I (55) via a transmission belt.

8. The movable ultrasonic waveguide long-distance pipeline descaling device according to claim 7 is characterized in that: The connecting rod (52) is an L-shaped connecting rod, and a transmission wheel II (56) is arranged at the turning point of the L-shaped connecting rod. The transmission wheel III (57) and the transmission wheel I (55) are connected to the transmission wheel II (56) through a transmission belt.

9. The movable ultrasonic waveguide long-distance pipeline descaling device according to claim 7 or 8, characterized in that: The bottom of the fixing block (54) is provided with a limiting groove, and the limiting groove cooperates with a limiting protrusion (24) provided on the outer ring surface of the outer support ring (2).

10. A descaling method for a movable ultrasonic waveguide long-distance pipeline descaling device as claimed in claim 9, characterized in that: When the location of the scale layer is determined, the external support ring (2) is installed at the location of the scale layer, and the solenoid valve lifting rod (33) and the telescopic rod (32) are adjusted by the main control module to make the ultrasonic guided wave transducer I (31) close to the outer wall of the pipeline (1). The ultrasonic guided wave transducer I (31) emits a sinusoidal signal modulated by a Hanning window to cause a cavitation effect in the liquid in the pipeline, thereby removing the scale layer in the pipeline (1); When the location of the scale layer is uncertain: S1: Install the external support ring (2) on the outside of the pipeline (1), and adjust the solenoid valve lifting rod (33) and the telescopic rod (32) through the main control module so that the ultrasonic guided wave sensor II (41) is close to the outer wall of the pipeline (1); S2: The upper computer controls the overall control module to detect the scale layer in the pipeline (1) using the ultrasonic guided wave sensor II (41). When the scale layer is detected, the solenoid valve lifting rod (33) is controlled to lift, so that the ultrasonic guided wave sensor II (41) is separated from the pipeline (1); S4: Controlling the power control unit (51) to drive the pulley II (53) to drive the descaling device to move to the scale layer, adjusting the solenoid valve lifting rod (33) and the telescopic rod (32) through the main control module to make the ultrasonic guided wave transducer I (31) close to the outer wall of the pipeline (1), and using the ultrasonic guided wave transducer I (31) to emit a sinusoidal signal modulated by the Hanning window to cause the liquid in the pipeline to produce a cavitation effect, thereby removing the scale layer in the pipeline (1); S5: After the descaling is completed, the ultrasonic guided wave transducer I (31) stops emitting the sinusoidal signal, and the solenoid valve lifting rod (33) and the telescopic rod (32) are adjusted so that the ultrasonic guided wave sensor II (41) is closely attached to the pipeline (1) to detect the descaling effect and find the next scale layer; S6: Repeat steps S2-S5 until the descaling work on the pipeline (1) is completed.

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