A steel curtain belt reinforced wear-resistant composite pipeline and defect detection device

Abstract

The present invention discloses a steel curtain belt reinforced wear-resistant composite pipeline and a defect detection device, which relate to the field of defect detection technology, and include a pipe body, wherein the cross-sectional structure of the pipe body is an inner lining transmission layer, a reinforcement layer and an outer protective layer arranged in sequence from the inside to the outside, and the reinforcement layer is bonded and composited with the inner lining transmission layer and the outer protective layer as a whole; the reinforcement layer is made of a steel curtain belt in the form of a prepreg tape by bidirectional winding, and the steel curtain belt, a material of the reinforcement layer, is a tape material with extremely high tensile strength. After being made into a pipeline, its pressure resistance is stronger than that of pipelines made of other types of reinforcement materials; the pipeline made of the steel curtain belt as the reinforcement layer material, while ensuring the internal pressure resistance of the pipeline, also has strong external impact resistance.

Description

Technical Field

[0001] The invention relates to the technical field of defect detection, in particular to a steel curtain belt reinforced wear-resistant composite pipeline and a defect detection device. Background Art

[0002] With the advancement of green mine construction and the development of mine construction, various industries have increasingly higher requirements for pipeline materials, especially in the fields of mineral mining, coal production, chemical industry, energy, etc. Pipelines not only need to withstand high pressure, high temperature, and corrosive fluid erosion, but also need to have sufficient wear resistance and long-term stability. Although traditional steel pipes, polyethylene pipes and other pipelines meet basic needs to a certain extent, they often have problems such as poor corrosion resistance, insufficient pressure bearing capacity, and high maintenance costs when facing complex and harsh industrial environments;

[0003] A boiler pipe ultrasonic detection device described in a patent application with announcement number CN109239194B includes an ultrasonic detector body, a data cable is installed on the top of the ultrasonic detector body, and a plug is installed at one end of the data cable, a connecting block is installed on one side of the plug, a connecting rod is installed at the bottom of the connecting block, and a universal ball is installed on one side of the connecting block, a universal ball seat is installed on one side of the universal ball, and a flaw detection metal block is installed on one side of the universal ball seat, and a protective rubber stick is installed on one side of the damping spring.

[0004] In this context, the steel cord reinforced wear-resistant pipe technology came into being. This technology introduces steel cord as a reinforcement layer material, combines a wear-resistant inner lining layer, wraps a strip made of steel cord as a reinforcement layer, and a polyethylene outer protective layer to form a three-layer composite structure pipeline. This design not only significantly improves the pressure bearing capacity and wear resistance of the pipeline, but also gives it excellent corrosion resistance, flame retardancy and antistatic properties by adding flame retardant and antistatic materials. In addition, traditional steel pipes have poor wear resistance and high costs. A large number of connecting joints and elbows are required during the installation and laying process. When used under long-term wear-resistant conditions, they not only need to be replaced frequently, but also have high installation costs. Although the cost of traditional polyethylene can be reduced compared to steel pipes, its poor wear resistance makes the replacement frequency of this type of pipeline faster under long-term wear-resistant conditions, and the replaced pipeline cannot be reused, which does not meet the original intention of green mine construction. Therefore, it is necessary to improve the above problems;

[0005] In addition, after long-term use, pipe joints will age to a certain extent and cause leakage at the defects. Currently, pipe joints are usually inspected by staff using handheld ultrasonic probes, but manual inspection relies heavily on the experience and technical level of the inspectors. Different inspectors may obtain different test results, making it difficult to ensure the reliability and consistency of the test results. In addition, manual inspection may be difficult for complex or difficult-to-reach pipe joint structures. For example, in a narrow space or a high-temperature and high-pressure environment, inspectors may not be able to use the probe effectively for inspection. Summary of the invention

[0006] In view of the deficiencies in the prior art, the present invention provides a steel curtain belt reinforced wear-resistant composite pipe and a defect detection device, which achieves the purpose of solving the above-mentioned problems.

[0007] To achieve the above objectives, the present invention is implemented through the following technical solutions: a steel curtain belt reinforced wear-resistant pipe, including a pipe body, the cross-sectional structure of the pipe body is an inner lining transmission layer, a reinforcement layer and an outer protective layer arranged in sequence from the inside to the outside, and the reinforcement layer is bonded and composited with the inner lining transmission layer and the outer protective layer; the reinforcement layer is made of a steel curtain belt in the form of a prepreg tape by bidirectional winding.

[0008] Preferably, the lining transmission layer is made of ultra-high molecular weight polyethylene material;

[0009] The lining transmission layer comprises a wear-resistant layer and an inner lining layer, and the wear-resistant layer and the inner lining layer are extruded by a co-extrusion process. The wear-resistant layer is made of elastic polyolefin material, and the inner lining layer is made of high-density polyethylene or heat-resistant polyethylene material.

[0010] Preferably, the outer protective layer is made of high-density polyethylene or heat-resistant polyethylene material, and masterbatch or flame-retardant antistatic material is added to the outer protective layer.

[0011] A steel curtain belt reinforced wear-resistant composite pipeline defect detection device, wherein a joint is fixedly connected and installed at one end of the pipe body, and an ultrasonic detection mechanism is provided on the pipe body and the outer wall of the joint;

[0012] The ultrasonic detection mechanism comprises:

[0013] A moving plate, wherein the moving plate is an arc-shaped plate-shaped structure, a roller is provided on one side of the moving plate, and the moving plate is used to be activated to control the rotation of the roller;

[0014] A fixed slide, wherein the fixed slide is an arc-shaped plate-like structure, one side of the fixed slide is fixedly connected to one side of the movable plate, the outer wall of the fixed slide is slidably connected to the arc-shaped slide, the outer wall of the arc-shaped slide is slidably connected to the sliding sleeve, and the fixed slide and the arc-shaped slide are used to slide and retract on the inner wall of the sliding sleeve.

[0015] Preferably, a built-in spring is provided inside the sliding sleeve, and the built-in spring is used to allow the fixed slide plate and the arc-shaped slide plate to slide and reset on the inner wall of the sliding sleeve.

[0016] Preferably, a connecting plate is fixedly connected to one side of the movable plate, an ultrasonic probe is fixedly connected to the outer wall of the connecting plate, a rotating sleeve is fixedly connected to the bottom of the movable plate, a rotating wheel is rotatably connected to the inner wall of the rotating sleeve, a threaded cover is provided on one side of the movable plate, the interior of the movable plate is connected to the interior of the rotating sleeve, and a groove is provided on the inner wall of the fixed slide plate.

[0017] Preferably, the outer wall of the roller is provided with an auxiliary mechanism, and the auxiliary mechanism includes a square rod, one end of the square rod is fixedly connected to one end of the roller, the other end of the square rod is fixedly connected to a fixed plate, the outer wall of the square rod is slidably connected to a lifting block, the outer wall of the lifting block is fixedly connected to a spring, one end of the spring is fixedly connected to one end of the roller, and the outer wall of the fixed plate is fixedly connected to a distance sensor.

[0018] Preferably, the outer wall of the square rod is fixedly connected to a limit plate, and the outer wall of the lifting block is fixedly connected to a blade, and the blade is inclined.

[0019] The present invention provides a steel curtain belt reinforced wear-resistant composite pipeline and a defect detection device, which have the following beneficial effects:

[0020] 1. The steel cord belt used as the reinforcement layer material in this technical solution is a belt material with extremely high tensile strength. After being made into a pipe, its pressure resistance is stronger than that of pipes made of other types of reinforcement materials. The pipe made of steel cord belt as the reinforcement layer material can ensure that the pipe can withstand internal pressure while also having strong resistance to external impact.

[0021] 2. This technical solution is designed with two lining transmission layers according to the wear resistance requirements. They have excellent wear resistance and meet the requirements of different usage scenarios. In particular, the elastic polyolefin material and high-density polyethylene or heat-resistant polyethylene are extruded into an integrated lining transmission layer through a co-extrusion process. Its wear resistance is 100 times that of steel pipes, 15 times that of high-density polyethylene, and even five times that of ultra-high molecular weight polyethylene. It has extremely wide applications in the field of wear-resistant transportation conditions.

[0022] 3. This technical solution is easy to construct and has low installation cost. It takes into account a series of advantages of flexible composite high-pressure transmission pipes, such as being able to be transported in coils, having a long single length, fewer connecting joints, and being easy to install and fast to construct.

[0023] 4. This technical solution has excellent wear resistance and reduces waste generated by frequent replacement of pipes, which is in line with the concept of environmental protection. At the same time, the efficient transportation efficiency helps to reduce energy consumption and promote sustainable development. Due to its excellent performance, it is widely used in mining, metallurgy, electric power, chemical industry, water conservancy, construction and other industries, especially in situations where highly abrasive, high-pressure and corrosive media need to be transported, it shows its unique advantages.

[0024] 5. This technical solution starts the mobile plate to control the rotation of the roller, and uses the ultrasonic probe to complete the circular automatic mobile ultrasonic detection function of the outer wall of the pipe body. This method can fully save the manpower cost and time and energy of the staff, complete the automatic ultrasonic detection of leakage defects, and the surrounding detection is more stable without dead angles, the detection is more comprehensive, and the accuracy and stability are higher.

[0025] 6. In the technical solution, since the roller has a certain inclination angle on the movable plate, the inclination angle will make the roller tend to move the movable plate as a whole toward the center of the joint when rotating, so as to keep the movable plate stably attached to the pipe body and rotate stably without the problem of skewing, deviation, and falling off caused by the circular movement of the movable plate on the pipe body and the joint driven by the roller, thereby ensuring the stability of long-term ultrasonic annular detection, reducing accidents and improving work efficiency.

[0026] 7. This technical solution utilizes the rolling rotation of the rotating wheel to reduce the sliding friction, making the moving speed of the moving plate more stable and uniform, thereby effectively ensuring the accuracy of surround ultrasonic detection, avoiding the problem of unstable surround moving speed due to blockage caused by large friction, and further avoiding the problem of fluctuating detection distance and unstable detection angle caused by manual handheld ultrasonic detection head for leak detection.

[0027] 8. This technical solution can stably clamp pipes of different diameters, such as small, medium and large, through the different positions of the four rotating wheels under the moving plate. It has a wide range of applicability and can also ensure the stability of the ultrasonic probe driven by the moving plate in a surrounding manner, so as to achieve the uniformity of detection accuracy during ultrasonic detection of pipes of various diameters as much as possible.

[0028] 9. This technical solution utilizes the distance sensor to automatically detect the distance of the lifting block, and can determine in real time where the ultrasonic probe is located on the pipe body when the ultrasonic probe is performing ultrasonic detection on the pipe body and the joint. Once leakage data information is detected, it can determine at which point of the pipe body and the joint the leakage point occurs based on the distance information detected by the distance sensor transmitted in real time, which facilitates the staff to accurately judge the leakage situation and improves the efficiency of their leakage detection and maintenance work.

[0029] 10. This technical solution uses the flow of air to spread the sound-conducting liquid applied by the rotating wheel as evenly as possible, and at the same time blows off the particles attached to the pipe synchronously to reduce the obstruction and friction caused by the surrounding movement, and also ensure the uniformity of the application of the sound-conducting liquid, so as to ensure the stability of the ultrasonic detection work and reduce unexpected situations in the detection. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 It is a schematic diagram of the structure of the present invention;

[0031] Figure 2 It is a schematic diagram of the cross-sectional structure of the present invention;

[0032] Figure 3 It is a schematic diagram of the disassembled structure of the present invention;

[0033] Figure 4 It is a structural schematic diagram of the joint of the present invention;

[0034] Figure 5 The structure of the ultrasonic detection mechanism of the present invention is shown in FIG. Figure 1 ;

[0035] Figure 6 The structure of the ultrasonic detection mechanism of the present invention is shown in FIG. Figure 2 ;

[0036] Figure 7 It is a schematic diagram of the disassembled structure of the ultrasonic detection mechanism of the present invention;

[0037] Figure 8 The structure of the ultrasonic detection mechanism of the present invention is shown in FIG. Figure 3 ;

[0038] Fig. 9 For the present invention Figure 6 A magnified image of point A;

[0039] Fig.10 It is a structural schematic diagram of the sliding sleeve of the present invention;

[0040] Fig.11 It is a schematic diagram of the motion state of the ultrasonic detection mechanism of the present invention;

[0041] Fig.12 It is a schematic diagram of the motion state of the ultrasonic detection mechanism of the present invention;

[0042] Fig.13 It is a schematic diagram of the motion state of the ultrasonic detection mechanism of the present invention;

[0043] Fig.14 It is a structural schematic diagram of the auxiliary mechanism of the present invention;

[0044] Fig.15 For the present invention Fig.13 Enlarged view of B and C.

[0045] In the figure: 1 lining transmission layer, 2 reinforcement layer, 3 outer protective layer, 4 pipe body, 5 joint, 6 ultrasonic detection mechanism, 601 moving plate, 602 fixed slide plate, 603 arc slide plate, 604 sliding sleeve, 605 roller, 606 connecting plate, 607 threaded cover, 608 groove, 609 ultrasonic probe, 610 rotating sleeve, 611 rotating wheel, 7 auxiliary mechanism, 701 square rod, 702 fixed plate, 703 lifting block, 704 blade, 705 spring, 706 limit plate, 707 distance sensor. DETAILED DESCRIPTION

[0046] Example 1: Please refer to Figure 1-4 The present invention provides a technical solution: a steel curtain belt reinforced wear-resistant pipeline, comprising a pipe body 4, the cross-sectional structure of the pipe body 4 is an inner lining transmission layer 1, a reinforcement layer 2 and an outer protective layer 3 arranged in sequence from the inside to the outside, and the reinforcement layer 2 is bonded and composited with the inner lining transmission layer 1 and the outer protective layer 3 as a whole; the reinforcement layer 2 is made of a steel curtain belt in the form of a prepreg tape by bidirectional winding.

[0047] The lining transmission layer 1 is made of ultra-high molecular weight polyethylene material;

[0048] The lining transmission layer 1 includes a wear-resistant layer and an inner lining layer, and the wear-resistant layer and the inner lining layer are extruded by a co-extrusion process. The wear-resistant layer adopts elastic polyolefin material, and the inner lining layer adopts high-density polyethylene or heat-resistant polyethylene material.

[0049] The outer protective layer 3 is made of high-density polyethylene or heat-resistant polyethylene material, and a color masterbatch or a flame-retardant antistatic material is added to the outer protective layer 3 .

[0050] Example 2: Please refer to Figure 1-13 , based on the first embodiment, the present invention provides a technical solution: a steel curtain belt reinforced wear-resistant composite pipeline defect detection device, a pipe body 4 is fixedly connected with a joint 5 at one end, and an ultrasonic detection mechanism 6 is provided on the outer wall of the pipe body 4 and the joint 5;

[0051] The ultrasonic detection mechanism 6 comprises:

[0052] The movable plate 601 is an arc-shaped plate structure. A roller 605 is provided on one side of the movable plate 601. The movable plate 601 is used to be activated to control the rotation of the roller 605.

[0053] The fixed slide 602 is an arc-shaped plate structure. One side of the fixed slide 602 is fixedly connected to one side of the movable plate 601. The outer wall of the fixed slide 602 is slidably connected to the arc-shaped slide 603. The outer wall of the arc-shaped slide 603 is slidably connected to the sliding sleeve 604. The fixed slide 602 and the arc-shaped slide 603 are used to slide and retract on the inner wall of the sliding sleeve 604.

[0054] An internal spring is provided inside the sliding sleeve 604 , and the internal spring is used to enable the fixed slide plate 602 and the arc-shaped slide plate 603 to slide and reset on the inner wall of the sliding sleeve 604 .

[0055] A connecting plate 606 is fixedly connected to one side of the movable plate 601, an ultrasonic probe 609 is fixedly connected to the outer wall of the connecting plate 606, a rotating sleeve 610 is fixedly connected to the bottom of the movable plate 601, a rotating wheel 611 is rotatably connected to the inner wall of the rotating sleeve 610, a threaded cover 607 is provided on one side of the movable plate 601, the interior of the movable plate 601 is connected to the interior of the rotating sleeve 610, and a groove 608 is provided on the inner wall of the fixed slide plate 602.

[0056] Example 3: Please refer to Figure 1-15 On the basis of the first and second embodiments, the present invention provides a technical solution: an auxiliary mechanism 7 is arranged on the outer wall of the roller 605, and the auxiliary mechanism 7 includes a square rod 701, one end of the square rod 701 is fixedly connected to one end of the roller 605, and the other end of the square rod 701 is fixedly connected to a fixed plate 702, and the outer wall of the square rod 701 is slidably connected to a lifting block 703, and the outer wall of the lifting block 703 is fixedly connected to a spring 705, one end of the spring 705 is fixedly connected to one end of the roller 605, and the outer wall of the fixed plate 702 is fixedly connected to a distance sensor 707.

[0057] The outer wall of the square rod 701 is fixedly connected to the limit plate 706, and the outer wall of the lifting block 703 is fixedly connected to the blade 704, and the blade 704 is inclined;

[0058] When in use, there are a variety of different specifications of strips to choose from depending on the production process. This type of steel cord strip usually uses polyethylene as the base resin. The steel cord is pre-impregnated into the PE matrix through strip making equipment to form this type of reinforcement material with extremely high breaking strength and no displacement of the reinforcement material. This can meet the production of large-diameter, high-pressure pipelines.

[0059] When the wear resistance requirement is relatively low, such as conveying gravel with a relatively small surface roughness, the inner lining transmission layer 1 that can be selected is as follows: the inner lining transmission layer 1 is made of ultra-high molecular weight polyethylene material.

[0060] The outer protective layer 3 is specifically as follows: the outer protective layer 3 is made of high-density polyethylene or heat-resistant polyethylene material; specifically, a color masterbatch or a flame-retardant antistatic material is added to the outer protective layer 3, which can be added according to actual conditions; the outer protective layer 3 mainly plays a protective role to prevent the pipeline from being damaged from the outside during transportation, laying and use;

[0061] When the wear resistance is required to be high, such as conveying larger particles of sand and gravel, the lining transmission layer 1 that can be selected is as follows: the lining transmission layer 1 includes a wear-resistant layer and an inner lining layer, and the wear-resistant layer and the inner lining layer are extruded by a co-extrusion process, the wear-resistant layer is made of elastic polyolefin material, and the inner lining layer is made of high-density polyethylene or heat-resistant polyethylene material;

[0062] The above-mentioned steel curtain belt reinforced wear-resistant pipe is a composite pipe with excellent wear resistance, and has great application space in working conditions with high wear resistance requirements. The innermost lining transmission layer 1 is in contact with the transmission medium, and has high requirements for wear resistance. According to the type of transmission medium, an elastic polyolefin co-extruded wear-resistant layer or an ultra-high molecular weight polyethylene is selected for molding. The principle is to melt the raw materials and then extrude them. The reinforcement layer 2 uses a steel curtain belt as a reinforcement material. According to different specifications and production processes, different specifications and models of belts are selected, and the pressure-bearing performance requirements are met through bidirectional winding. The molding principle of the outer protective layer 3 is the same as that of the lining transmission layer 1. The raw materials are extruded and then cooled and molded, and coated on the outside of the reinforcement layer 2, which mainly plays a protective role. By using this prepreg tape reinforcement material as the reinforcement layer 2, an integral structure without stratification between the structural layers can be formed, which is called a "bonded composite pipe". Compared with the traditional non-bonded structure, this pipeline has better overall performance.

[0063] Strong pressure resistance: The steel cord belt used as the reinforcement layer material is a belt material with extremely high tensile strength. After being made into a pipe, its pressure resistance is stronger than that of pipes made of other types of reinforcement materials. The pipe made of steel cord belt as the reinforcement layer material can ensure the internal pressure resistance of the pipe while also having strong resistance to external impact.

[0064] Strong wear resistance: Two types of lining transmission layers are designed according to the wear resistance requirements. They have excellent wear resistance and meet the requirements of different use occasions. In particular, the elastic polyolefin material and high-density polyethylene or heat-resistant polyethylene are co-extruded into an integrated lining transmission layer. Its wear resistance is 100 times that of steel pipes, 15 times that of high-density polyethylene, and even 5 times that of ultra-high molecular weight polyethylene. It is widely used in the field of wear-resistant transportation conditions.

[0065] Convenient construction and low installation cost: It has a series of advantages of flexible composite high-pressure transmission pipe, which can be transported in coils, has a long single length, few connection joints, and is easy to install and fast to construct;

[0066] More environmentally friendly, reducing waste and pollution: Due to its superior wear resistance, it reduces waste generated by frequent pipe replacement, which is in line with the concept of environmental protection;

[0067] Wide application fields: High efficiency in conveying helps to reduce energy consumption and promote sustainable development. Due to its excellent performance, it is widely used in mining, metallurgy, electric power, chemical industry, water conservancy, construction and other industries, especially in situations where it is necessary to convey highly abrasive, high-pressure and corrosive media, it shows its unique advantages.

[0068] When the two pipe bodies 4 are used after being butt-jointed by the joint 5, they need to be lifted up for inspection to prevent leakage at the joint between the pipe body 4 and the joint 5;

[0069] When the joint 5 needs to be repaired, the left and right moving plates 601 are pulled apart, and the fixed slide plate 602, the curved slide plate 603, and the sliding sleeve 604 are extended, and the built-in springs in the inner walls of the fixed slide plate 602, the curved slide plate 603, and the sliding sleeve 604 are also pulled to deform, so that the two moving plates 601 are pulled apart, and the side of the two moving plates 601 close to each other clamps the left and right sides of the joint 5, and the rollers 605 on the moving plates 601 complete the clamping of the two sides of the joint 5, and then the moving plates 601 are started to control the movement of the moving plates 601. The control roller 605 rotates, driving the movable plate 601 to move in a circular manner on the outer wall of the joint 5. The rotation direction is clockwise rotation of the joint 5 in the right view state, and the ultrasonic probe 609 under the connecting plate 606 is close to the outer wall of the pipe body 4 to complete the circular automatic movable ultrasonic detection function of the outer wall of the pipe body 4. This method can fully save the labor cost and time and energy of the staff, complete the automatic ultrasonic detection of the leakage point defect, and the surrounding detection is more stable without dead angles, the detection is more comprehensive, and the accuracy and stability are higher;

[0070] Since the roller 605 has a certain inclination angle on the moving plate 601, the inclination angle will make the roller 605 tend to move the moving plate 601 as a whole toward the center of the joint 5 when rotating, so that the bottom of the moving plate 601 can be stably attached to the surface of the tube body 4, so that the moving plate 601 can be stably attached to the tube body 4 and rotate stably, and the moving plate 601 will not be skewed or deviated or fall off when the roller 605 drives the moving plate 601 to move in an annular manner on the tube body 4 and the joint 5, thereby ensuring the stability of long-term ultrasonic annular detection, reducing unexpected situations, and improving work efficiency;

[0071] When the moving plate 601 moves in a circular motion, the moving plate 601 contacts and clings to the surface of the tube body 4 through the rotating wheel 611 on the inner wall of the bottom rotating sleeve 610, so the moving plate 601 can stably and smoothly cling to the tube body 4 and slide, and the rolling rotation of the rotating wheel 611 is used to reduce the sliding friction, so that the moving speed of the moving plate 601 is more stable and uniform, thereby effectively ensuring the accuracy of the surround ultrasonic detection, avoiding the problem of unstable surround moving speed caused by blockage due to large friction, and further avoiding the problem of unstable detection distance and unstable detection angle caused by manually holding an ultrasonic detection head for leak detection;

[0072] By opening the threaded cover 607 in advance, the sound-conducting liquid can be injected into the movable plate 601, and the sound-conducting liquid will be connected to the inside of the rotating sleeve 610, so that when the bottom of the movable plate 601 presses the tube body 4 through the rotating wheel 611, the movable plate 601 can be pushed down to press the tube body 4 when the roller 605 drives the movable plate 601 to roll and rotate along both sides of the joint 5, so that the rotating wheel 611 can also press the surface of the tube body 4 and roll on the outer wall of the tube body 4 through the rotation of the rotating wheel 611, so as to realize the rolling of the rotating wheel 611 When the rotating sleeve 610 is in motion, the sound-conducting liquid on the inner wall of the rotating sleeve 610 is continuously stained, and evenly smeared on the outer wall of the tube body 4 below. The principle of applying liquid is the same as that of the cylindrical rolling liquid in a ballpoint pen. The rotating wheel 611 can not only resist the tube body 4 to avoid sliding friction, but also evenly smear the sound-conducting liquid on the surface of the tube body 4. Without the need for the staff to manually apply the sound-conducting liquid in advance, the integrated operation of the sound-conducting liquid and the ultrasonic detection can be automatically implemented, which greatly improves the work efficiency, and the application of the rotating wheel 611 is more stable and even.

[0073] Since four rotating wheels 611 and rotating sleeve 610 are arranged at the bottom of a movable plate 601, when the tube bodies 4 have different diameters, when the tube body 4 with a larger diameter is pressed against the tube body 4 by the bottom of the movable plate 601, the two rotating wheels 611 located in the middle of the bottom of the movable plate 601 will not contact the surface of the tube body 4 with a larger diameter, but the rotating wheels 611 on both sides of the bottom of the movable plate 601 will close against the tube diameter, and the left and right two rotating wheels can play a role in stable squeezing and pressing the tube body 4 with a larger diameter.

[0074] When clamping a tube body 4 of a smaller diameter, the curvature of the fitting position of the tube body 4 and the bottom of the movable plate 601 is larger, so that the curved surface of the tube body 4 will abut against the two rotating wheels 611 in the middle of the bottom of the movable plate 601, and the two rotating wheels 611 in the middle complete the stable clamping of the tube body 4 of the smaller diameter, so as to reduce the problem of skewness and instability in the clamping, and can stably clamp the tube bodies 4 of different diameters such as small, medium and large. While having a wide range of applicability, it can also ensure the stability of the movable plate 601 in driving the ultrasonic probe 609 to move in a surrounding manner, and achieve the uniformity of the detection accuracy of ultrasonic detection of tube bodies 4 of various diameters as much as possible;

[0075] When the roller 605 and the moving plate 601 move in a circular manner, the lifting block 703 on the square rod 701 will also move in a circular manner. When the square rod 701 and the lifting block 703 are brought downward, the gravity of the lifting block 703 will pull the spring 705, causing the spring 705 to deform and lengthen, and the lifting block 703 is closer to the fixed plate 702 and the distance sensor 707. By using the distance sensor 707 to automatically detect the distance of the lifting block 703, it is possible to determine in real time where the ultrasonic probe 609 is located in the pipe body 4 when the ultrasonic probe 609 performs ultrasonic detection on the pipe body 4 and the joint 5. Once leakage data information is detected, it is possible to determine at which point of the pipe body 4 and the joint 5 the leakage point appears based on the distance information detected by the distance sensor 707 transmitted in real time, so as to facilitate the staff to accurately judge the leakage situation and improve the efficiency of leakage detection and maintenance.

[0076] When the roller 605 rotates and drives the moving plate 601 to circle around the joint 5 and the tube body 4, the rotation of the roller 605 itself will also drive the square rod 701, the lifting block 703 and the blade 704 above to rotate, so that the rotation of the blade 704 on the inclined surface can complete the pushing effect on the air at the position of the tube body 4 and the joint 5, and the sound-conducting liquid applied by the rotating wheel 611 can be spread evenly as much as possible through the flow of air, and the particles attached to the pipeline are blown off synchronously to reduce the obstruction and friction caused by the surrounding movement, and also ensure the uniformity of the application of the sound-conducting liquid, so as to ensure the stability of the ultrasonic detection work and reduce unexpected situations in the detection.

[0077] The above are only preferred specific implementation modes of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical solutions and inventive concepts of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A steel curtain belt reinforced wear-resistant composite pipe defect detection device, used for detecting a steel curtain belt reinforced wear-resistant pipe composed of a pipe body (4) and a joint (5), characterized in that: A joint (5) is fixedly connected to one end of the tube body (4), and an ultrasonic detection mechanism (6) is provided on the outer walls of the tube body (4) and the joint (5); The ultrasonic detection mechanism (6) comprises: A moving plate (601), the moving plate (601) being an arc-shaped plate-shaped structure, a roller (605) being provided on one side of the moving plate (601), and the moving plate (601) being used to be activated to control the rotation of the roller (605); A fixed slide plate (602), wherein the fixed slide plate (602) is an arc-shaped plate-shaped structure, one side of the fixed slide plate (602) is fixedly connected to one side of the movable plate (601), the outer wall of the fixed slide plate (602) is slidably connected to a curved slide plate (603), the outer wall of the curved slide plate (603) is slidably connected to a sliding sleeve (604), and the fixed slide plate (602) and the curved slide plate (603) are used to play a role of sliding and retracting on the inner wall of the sliding sleeve (604); An auxiliary mechanism (7) is provided on the outer wall of the roller (605), the auxiliary mechanism (7) comprising a square rod (701), one end of the square rod (701) being fixedly connected to one end of the roller (605), the other end of the square rod (701) being fixedly connected to a fixing plate (702), the outer wall of the square rod (701) being slidably connected to a lifting block (703), the outer wall of the lifting block (703) being fixedly connected to a spring (705), one end of the spring (705) being fixedly connected to one end of the roller (605), and the outer wall of the fixing plate (702) being fixedly connected to a distance sensor (707); During operation, the two moving plates (601) are close to each other on one side and clamp the left and right sides of the joint (5), and the rollers (605) on the moving plates (601) complete the clamping of the two sides of the joint (5).

2. The steel curtain belt reinforced wear-resistant composite pipeline defect detection device according to claim 1 is characterized by: The sliding sleeve (604) is provided with an internal spring, which is used to allow the fixed slide plate (602) and the arc-shaped slide plate (603) to slide and reset on the inner wall of the sliding sleeve (604).

3. The steel curtain belt reinforced wear-resistant composite pipeline defect detection device according to claim 2 is characterized by: A connecting plate (606) is fixedly connected to one side of the movable plate (601), an ultrasonic probe (609) is fixedly connected to the outer wall of the connecting plate (606), a rotating sleeve (610) is fixedly connected to the bottom of the movable plate (601), an inner wall of the rotating sleeve (610) is rotatably connected to a rotating wheel (611), a threaded cover (607) is provided on one side of the movable plate (601), the interior of the movable plate (601) is communicated with the interior of the rotating sleeve (610), and a groove (608) is provided on the inner wall of the fixed slide plate (602).

4. The steel curtain belt reinforced wear-resistant composite pipeline defect detection device according to claim 3 is characterized by: The outer wall of the square rod (701) is fixedly connected to a limiting plate (706), and the outer wall of the lifting block (703) is fixedly connected to a blade (704), and the blade (704) is inclined.

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