A new ultrasonic internal detector device for single pipe

Abstract

A novel single-pipeline ultrasonic internal detector device belongs to the technical field of pipeline ultrasonic detection equipment, which comprises an ultrasonic internal detector body, a rack, a water tank, a mobile extension pipe rack assembly, a pulling assembly, a water tank assembly, a limiting rod and a supporting roller, wherein the ultrasonic internal detector body, the rack, the water tank, the mobile extension pipe rack assembly, the pulling assembly, the water tank assembly, the limiting rod and the supporting roller are installed together, each set of the mobile extension pipe rack assembly comprises a hydraulic oil cylinder, an electric linear slide, a mobile support and an extension pipe. The novel device only needs to inject water into the position of the ultrasonic probe, so that the ultrasonic probe can detect the quality in the pipeline through water as a coupling agent, thereby ensuring the detection accuracy. The ultrasonic probe can effectively detect the inside of the first end and the last end of the pipeline. Since the ultrasonic probe is pulled by the electric hoists of the two sets of pulling assemblies, the convenience is brought to the staff, the detection labor cost is reduced, and the detection efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the technical field of pipeline ultrasonic testing equipment, and in particular to a novel ultrasonic internal detector device for single pipelines. Background Technology

[0002] Ultrasonic detectors (internal ultrasonic detectors) are used for quality inspection inside oil pipelines and gas storage pipelines. During inspection, the split ultrasonic probe of the ultrasonic detector is placed inside one end of the pipeline (the ultrasonic detector outside the pipeline and the ultrasonic probe are connected by a wire). Then, the ultrasonic probe is pulled from the other end by a traction rope to move from front to back inside the pipeline for seamless multi-angle detection. The working principle of the ultrasonic probe in conjunction with the ultrasonic detector when inspecting pipeline quality mainly relies on the piezoelectric crystal inside. When voltage is applied to the piezoelectric crystal, it is excited and generates ultrasonic signals. These signals are emitted into the pipeline being inspected by the transmitting head of the ultrasonic probe. At the same time, the receiving head of the ultrasonic probe can receive the reflected ultrasonic signals and output them to the main control system of the ultrasonic detector located outside the pipeline for analysis and processing. By calculating the time difference between the transmitted signal and the echo signal, the location of defects in the pipeline can be accurately determined (such as cracks, dents, etc. at a specific location on the inner wall of the pipeline).

[0003] To ensure simultaneous detection of defects at various angles along the circumference of the pipe, existing ultrasonic detectors for pipelines typically employ multiple sets of ultrasonic probes, arranged in a ring around the probe holder. Air can affect the detection accuracy of the ultrasonic probes during testing. Therefore, current technologies often fill the pipe with water as a coupling agent after the ultrasonic probe is placed inside, reducing the adverse effects of air on the probe. While existing technologies achieve some degree of defect detection within pipes, they still suffer from the following technical problems due to structural limitations: First, filling the entire pipe with water not only wastes water but also makes it difficult to seal the water due to the traction steel cables at the pipe's ends, leading to significant leakage and negatively impacting detection accuracy. Second, because the ultrasonic probe is located in the middle of the probe holder, defects at the pipe's beginning and end are often not effectively detected, resulting in blind spots. Third, the entire detection process involves manually pulling the ultrasonic probe, which is inconvenient for qualified personnel, increases detection costs, and reduces efficiency. Utility Model Content

[0004] To overcome the shortcomings of existing ultrasonic detectors used for pipeline inspection, which are limited by their structure and described in the background art, this utility model provides a novel ultrasonic internal detector device for single pipelines. In application, only water needs to be injected at the ultrasonic probe location, saving water resources and achieving a good sealing effect, thus ensuring maximum detection accuracy. By moving the extension pipe support assembly, the ultrasonic probe can effectively detect the inner sides of both the beginning and end of the pipeline. Furthermore, by using two sets of electric winches to pull the ultrasonic probe, it provides convenience for workers, reduces labor costs, and improves detection efficiency.

[0005] The technical solution adopted by this utility model to solve its technical problem is: A novel single-pipe ultrasonic internal detector device includes an ultrasonic internal detector body, a frame, a water tank, a movable extension tube support assembly, a traction assembly, a water tank assembly, a limiting rod, and support rollers. The movable extension tube support assembly, traction assembly, and limiting rod are each provided in at least two sets, and multiple sets of support rollers are provided. Workbenches are fixedly mounted on both sides of the frame, and the water tank is fixedly installed between the lower inner ends of two workbenches at both ends. The multiple sets of support rollers are fixedly installed at intervals on the upper part of the water tank. Each movable extension tube support assembly includes a hydraulic cylinder, an electric linear slide, a movable support, and an extension tube. The lower end of the moving bracket is fixedly installed on the upper part of the sliding block of the electric linear slide table, the extension tube is fixedly installed on the upper end of the moving bracket, the lower end of the housing of the electric linear slide table is fixedly installed on the upper end of the piston rod of the hydraulic cylinder, the lower ends of the cylinders of the two sets of moving extension tube frame assemblies are respectively fixedly installed on the inner side of the two worktables; the lower ends of the two sets of limiting rods are respectively fixedly installed on the middle of the two worktables, the two sets of traction assemblies are respectively installed on the outer ends of the two worktables, the water tank assembly is installed on one side of one of the worktables, and the ultrasonic probe of the ultrasonic internal detector body is located on the inner end of the extension tube of one of the traction assemblies.

[0006] Furthermore, the support roller includes a roller frame and rollers, with at least two rollers mounted on the roller frame at a distance from each other.

[0007] Furthermore, a drain pipe is fixedly installed at the lower outer end of the water tank, and a valve is fixedly installed at the other end of the drain pipe.

[0008] Furthermore, the pulling assembly includes an electric winch and a fixed base, and a traction rope. One end of the traction rope is fixedly installed together with the drum of the electric winch, and the other end of the traction rope is fixedly installed with a hook. The lower end of the electric winch is fixedly installed on the fixed base, and the fixed bases of the two sets of pulling assemblies are respectively fixedly installed on the outer ends of the two workbenches.

[0009] Furthermore, the drums of the two sets of electric winches of the traction assembly, the two rollers of the multiple sets of supporting rollers, and the extension tubes of the two sets of movable extension tube frame assemblies are in a straight line laterally.

[0010] Furthermore, traction rings are fixedly installed on both sides of the probe frame of the ultrasonic probe, and the hooks of the two traction rings and the two sets of traction components are hooked and connected respectively. Water-blocking cups are fixedly installed on both sides of the ultrasonic probe, and support cups and sealing cups are fixedly installed on both sides of the probe frame.

[0011] Furthermore, one of the water-retaining cups, the supporting cup on one side of the probe holder, and the sealing cup of the ultrasonic probe have openings, and a rubber tube with a length allowance is installed in the openings, with one side of the rubber tube located between the inner sides of the two water-retaining cups.

[0012] Furthermore, the water tank assembly includes a tank body, a valve, and a water pump. The water inlet of the water pump is fixedly connected to the water outlet pipe at the lower end of the tank body, and the water outlet of the water pump is fixedly connected to the other end of the hose via the valve in series. The tank body is filled with water.

[0013] Compared with the prior art, the advantages of this utility model are: This new model is based on the ultrasonic internal detector body, etc., and in application, through the water tank assembly, Simply injecting water into the location of the ultrasonic probe allows it to detect the quality inside the pipe using water as a coupling agent. This saves water resources, achieves a good sealing effect, and maximizes detection accuracy. By moving the extension pipe support assembly, support rollers, and traction components, the ultrasonic probe can effectively detect the inner side of both the beginning and end of the pipe. Furthermore, since the ultrasonic probe is pulled by an electric winch with two sets of traction components, it provides convenience for workers, reduces labor costs, and improves detection efficiency. In summary, this new invention has promising application prospects. Attached Figure Description

[0014] The present invention will be further described below with reference to the accompanying drawings.

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0016] Figure 2 This is a partial structural diagram of the frame, water tank, movable extension pipe rack assembly, traction assembly, water tank assembly, limiting rod, and support roller of this utility model.

[0017] Figure 3 This is a structural schematic diagram of the frame, water tank, movable extension tube frame assembly, limiting rod, and supporting roller of this utility model.

[0018] Figure 4 This is a partial structural schematic diagram of the mobile extension tube rack assembly of this utility model.

[0019] Figure 5 This is a partial structural schematic diagram of the traction component of this utility model.

[0020] Figure 6 This is a schematic diagram of the ultrasonic probe structure of this utility model. Detailed Implementation

[0021] Figure 1 , 2 As shown in Figures 3, 4, 5, and 6, a novel single-pipe ultrasonic internal detector device includes an ultrasonic internal detector body (not shown in the figures), a frame 1, a water tank 2, a movable extension pipe support assembly 3, a traction assembly 4, a water tank assembly 5, a limiting rod 6, support rollers 7, and a hydraulic pump (not shown in the figures). The ultrasonic probe 8 of the ultrasonic detector body and the signal input terminal of the ultrasonic detector body are connected via a signal line. There are two sets of movable extension pipe support assemblies 3, traction assemblies 4, and limiting rods 6, and three sets of support rollers 7. The water tank 2 has a closed structure on all four sides and an open structure at the top. Support columns are fixedly installed around the lower end of the water tank 2. A workbench 9 is fixedly installed on the left and right outer sides of the frame, and the left and right ends of the water tank 2 are fixedly installed between the lower ends of the two workbench 9. The three sets of support rollers 7 are distributed at equal intervals laterally and fixedly installed at the middle of the upper end of the water tank 2. Each movable extension pipe support assembly includes four hydraulic cylinders (not shown in the figures) and two electric linear slides (not shown in the figures). The movable support 31 and extension tube 32 are respectively fixedly installed on the upper part of the sliding block of the two electric linear slides with the lower end of the movable support 31 horizontally distributed and the front and rear parts are respectively fixedly installed. The extension tube 32 is fixedly installed on the upper end of the movable support 31 with the front and rear parts of the lower end of the housing of the two electric linear slides respectively fixedly installed on the upper end of the piston rod of the four hydraulic cylinders. The lower end of the cylinder of the four hydraulic cylinders of the two sets of movable extension tube frame assemblies 3 is respectively fixedly installed on the inner side of the two worktables 9. The oil inlet and return solenoid valve interface of the upper and lower end of the cylinder of the four hydraulic cylinders of the two sets of movable extension tube frame assemblies 3 and the oil inlet and return pipe of the hydraulic pump (installed on the rear left end of the frame) are respectively connected by hydraulic hoses. The lower ends of the two sets of "Π" type limit rods 6 (limiting the movement of the extension tube to the outer end) are respectively fixedly installed on the upper middle part of the front and rear ends of the two worktables 9. The two sets of traction assemblies 4 are respectively installed on the outer end of the two worktables. The water tank assembly 5 is installed on the rear side of the left worktable 9. The ultrasonic probe 8 of the ultrasonic internal detector body is located on the inner end of the extension tube of one of the traction assemblies 4.

[0022] Figure 1 , 2As shown in Figures 3, 4, 5, and 6, the supporting roller 7 includes a roller frame 71 and two rollers 72. The two rollers 72 are horizontally distributed and rotate on the roller frame 71 with a front-to-back spacing. The lower end of the roller frame 71 is fixedly installed on the water tank. A drain pipe (not shown in the figure) that communicates with the interior of the water tank 2 is fixedly installed in the middle of the lower outer end. A manual valve (not shown in the figure) is threaded onto the lower end of the drain pipe. The other end of the manual valve is fixedly connected to one end of a drain pipe (not shown in the figure). The other end of the drain pipe is located on a wastewater pool (not shown in the figure). When there is too much water in the water tank, the valve can be opened to drain the water in the water tank. The traction assembly includes an electric winch 41, a fixed base 42, and a wire rope (not shown in the figure). One end of the wire rope is fixedly installed to the drum of the electric winch 41, and the other end of the wire rope is fixedly installed with an open hook (not shown in the figure). The lower end of the electric winch 41 is fixedly installed on the fixed base 42. The fixed bases 42 of the two traction assemblies are respectively fixedly installed on the outer ends of the two worktables 9. The drums of the electric winches 41 of the two traction assemblies and the two rollers 72 of the three sets of support rollers 7, as well as the extension tubes 32 of the two sets of movable extension tube frame assemblies, are in a straight line laterally. The left and right ends of the extension tubes 32 (made of engineering plastic) are open structures. The ultrasonic probe of the ultrasonic detector body has a traction ring 81 fixedly installed on the left and right sides of the probe frame. The hooks of the two traction rings 81 and the two sets of traction components are hooked and connected respectively. A water-retaining cup 82 is sealed and fixedly installed on the left and right sides of the ultrasonic probe 8. A support cup 83 and a sealing cup 84 are sealed and installed on the left and right sides of the probe frame respectively. The sealing cup 84 and the water-retaining cup 82 are conical structures. The conical part of the sealing cup 84 and the water-retaining cup 82 at the left end of the probe frame is located on the left side, and the conical part of the sealing cup 84 and the water-retaining cup 82 at the right end of the probe frame is located on the right side. The outer diameter of the water-retaining cup 82 is slightly larger than the inner diameter of the detection pipe 10. The outer diameter of the sealing cup 84 is the same as the inner diameter of the detection pipe 10. The outer diameter of the support cup 83 is slightly smaller than the inner diameter of the detection pipe 10. The ultrasonic probe has a water-retaining cup 82 on its left end, a supporting cup 83 on the left end of the probe holder, and a sealing cup 84. Each of these cups has an opening in the middle of its lower end. A flexible, thin rubber tube 85 with sufficient length is sealed inside each opening (sealed with sealant between it and the outside of the rubber tube). The right side of the rubber tube 85 is located between the inner sides of the two water-retaining cups 82. The water tank assembly includes a tank body 51, a valve (not shown in the figure), and a water pump (not shown in the figure). The inlet of the water pump is fixedly connected to the outlet pipe (not shown in the figure) at the lower end of the tank body 51. A manual valve (not shown in the figure) is installed at the outlet of the water pump. The other end of the manual valve is fixedly connected to the other end of the thin rubber tube 85. The tank body 51 is filled with water.

[0023] Figure 1 , 2As shown in Figures 3, 4, 5, and 6, this novel invention, based on an ultrasonic internal detector body, involves placing the split-type ultrasonic probe 8 of the ultrasonic detector into one end of the pipe 10 during detection (the ultrasonic detector body and the ultrasonic probe 8 are connected by a wire outside the pipe). Then, the ultrasonic probe 8 is pulled from the other end by a traction steel wire rope, moving from left to right within the pipe to perform seamless multi-angle detection within the pipe 10. The working principle of the ultrasonic probe 8 in conjunction with the ultrasonic detector in detecting pipe quality mainly relies on its internal piezoelectric crystal. When voltage is applied to the piezoelectric crystal, it is excited and generates ultrasonic signals. These signals are emitted into the pipe being inspected by the transmitting head of the ultrasonic probe 8. Simultaneously, the receiving head of the ultrasonic probe 8 receives the reflected ultrasonic signals and outputs them to the main control system of the ultrasonic detector body outside the pipe for analysis and processing. By calculating the time difference between the transmitted signal and the echo signal, the location of defects in the pipe 10 can be accurately determined (e.g., a crack or dent at a specific location on the inner wall of the pipe). The above is prior art; this application will not elaborate further on the working principle and process.

[0024] Figure 1 , 2As shown in 3, 4, 5, and 6, the application process of this new type is as follows: (1): Place the pipe 10 to be tested between the two rollers 72 of the three sets of support rollers 7 using a lifting tool. (2): Hook the hook of one set of traction components into the traction ring 81 on one side of the ultrasonic probe, control the power switch of the other set of traction components to make its electric winch unwind, and use a long hook or other tool to hook the hook of the other set of traction components out through the pipe on one side, and then hook the hook of the other set of traction components into the traction ring 81 on the other side of the ultrasonic probe. (3): Control the piston rod of the four hydraulic cylinders of the two sets of moving extension pipe assemblies 3 to drive the extension pipe 32 to rise or fall in height through the relevant control switch of the hydraulic oil pump. When the extension pipe of the two sets of moving extension pipe assemblies 3 (the inner diameter of the inner end is larger than the inner diameter of the outer end, so that after the two sides of the pipe and the inner sides of the two extension pipes come into contact, the inner outer end of the extension pipe and the inner two sides of the pipe are in the same plane) and the two sides of the pipe are at the same height laterally, turn off the control switch. (4): Control the power switch of the two sets of movable extension tube assemblies 3 so that the sliding block of the electric linear slide table drives the extension tube 32 to move inward. After the extension tubes of the two sets of movable extension tube assemblies 3 are respectively fitted on the left and right outer ends of the pipe 10, turn off the power switch. (5): Control the piston rod of the four hydraulic cylinders of the two sets of movable extension tube assemblies 3 to drive the extension tube 32 to rise to the same height through the relevant control switch of the hydraulic oil pump. After the lower part of the extension tube of the two sets of movable extension tube assemblies 3 is level with the lower part of the two sides of the pipe, turn off the control switch. (6): Turn on the power switch and manual valve of the water pump. In this way, the water pump is powered on and draws water out of the box and outputs it through the thin rubber tube 85 to the inner side of the two water-blocking cups 82 of the ultrasonic probe. After the water is full, turn off the power switch and manual valve. (7): Control the power switch of the other traction assembly to make its electric winch rewind (and control the power switch of one of the traction assemblies to make its electric winch unwind), so that the ultrasonic probe 8 can be pulled out from one side of the pipe to the other side until the ultrasonic probe 8 is completely inserted into the extension tube of the other set of movable extension tube assembly 3. Then turn off the power switch. As the ultrasonic probe 8 moves from one side of the pipe to the other side, the ultrasonic probe 8 can work with the ultrasonic internal detector body to perform seamless quality detection inside the pipe 10. (8): Control the power switch of one set of traction assembly to make its electric winch rewind (and control the power switch of the other traction assembly to make its electric winch unwind), so that the ultrasonic probe 8 can be pulled out from the other side of the pipe to one side until the ultrasonic probe 8 is completely inserted into the extension tube of one set of movable extension tube assembly 3 (water flows out into the water tank 2). After returning to the initial position, turn off the power switch. (9): After the test is completed, the piston rods of the four hydraulic cylinders of the two sets of moving extension pipe assemblies 3 are controlled by the relevant control switch of the hydraulic oil pump to drive the extension pipe 32 to descend to a lower height. After the extension pipe and the lower part of the two sets of moving extension pipe assemblies 3 are separated from the lower ends of the pipe, the control switch is turned off.(10): Control the power switch of the two sets of mobile extension pipe assemblies 3 so that the sliding block of the electric linear slide table drives the extension pipe 32 to move outward. After the extension pipes of the two sets of mobile extension pipe assemblies 3 are separated from the left and right outer ends of the pipe 10 respectively, turn off the power switch, and then transfer the pipe 10 to the pipe stacking station by means of a lifting tool, which is completely consistent with the above process. Then the next pipe 10 can be inspected. Through the above, this new type of water tank assembly, etc., only requires water to be injected between the inner sides of the two water-retaining cups 82 and the ultrasonic probe position, so that the ultrasonic probe can use water as a coupling agent to detect the quality inside the pipe. This saves water resources and also achieves a better sealing effect, ensuring the accuracy of the ultrasonic probe and the ultrasonic internal detector body in detecting pipe defects as much as possible (the two sealing cups 84, together with the two water-retaining cups 82, can achieve a better water sealing effect; the two supporting cups 84 can support the ultrasonic probe, making the ultrasonic probe perpendicular to the pipe, which can further achieve a better detection effect). By moving the extension pipe rack assembly 3, the support roller 7, the pulling assembly 4, etc., the ultrasonic probe can effectively detect the inner side of the first and last ends of the pipe 10. Moreover, since the ultrasonic probe is pulled left and right by the electric winches of the two sets of pulling assemblies 4, no manual operation is required, which brings convenience to the staff, reduces the labor cost of detection, and improves the detection efficiency. All individual components used in this application (such as electric winches, rollers, water pumps, hydraulic pumps, cylinders, etc.) are existing and mature technologies. Therefore, this application does not elaborate on the structure and working principle of individual components, nor does it provide any protection for the structure of individual components.

[0025] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. It will be apparent to those skilled in the art that this utility model is limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or basic characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects. The scope of this utility model is defined by the appended claims rather than the foregoing description, and thus all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this utility model.

[0026] Furthermore, it should be understood that although this specification describes the embodiments, the embodiments do not necessarily contain only one independent technical solution. This way of describing the specification is only for clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in the embodiments can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A novel ultrasonic internal detector device for single pipes, comprising an ultrasonic internal detector body, a frame, a water tank, a movable extension pipe support assembly, a traction assembly, a water tank assembly, a limiting rod, and supporting rollers, characterized in that, The mobile extension tube frame assembly, traction assembly, and limiting rod are each available in at least two sets, and there are multiple sets of supporting rollers. Workbenches are fixedly installed on both sides of the frame, and the two ends of the water tank are fixedly installed between the lower inner ends of the two workbenches. The multiple sets of supporting rollers are fixedly installed at intervals on the upper end of the water tank. Each set of mobile extension tube frame assembly includes a hydraulic cylinder, an electric linear slide, a mobile support, and an extension tube. The lower end of the mobile support is fixedly installed on the upper part of the sliding block of the electric linear slide, and the extension tube is fixedly installed on the upper end of the mobile support. The lower end of the housing of the electric linear slide is fixedly installed on the upper end of the piston rod of the hydraulic cylinder. The lower ends of the cylinder barrels of the hydraulic cylinders of the two sets of mobile extension tube frame assemblies are fixedly installed on the inner sides of the two workbenches. The lower ends of the two sets of limiting rods are fixedly installed on the middle of the two workbenches. The two sets of traction assemblies are installed on the outer ends of the two workbenches. The water tank assembly is installed on one side of one of the workbenches. The ultrasonic probe of the ultrasonic internal detector body is located on the inner end of the extension tube of one set of traction assembly.

2. A novel single pipe ultrasonic internal detector device as claimed in claim 1, wherein, The support roller includes a roller frame and rollers. There are at least two rollers, which are mounted on the roller frame with a front-to-back spacing.

3. A novel single pipe ultrasonic internal detector device as claimed in claim 1, wherein, A drain pipe is fixedly installed at the lower outer end of the water tank, and a valve is fixedly installed at the other end of the drain pipe.

4. A novel single pipe ultrasonic internal detector device as claimed in claim 1, wherein, The traction assembly includes an electric winch, a fixed base, and a traction rope. One end of the traction rope is fixedly installed to the drum of the electric winch, and the other end of the traction rope is fixedly installed with a hook. The lower end of the electric winch is fixedly installed on the fixed base. The fixed bases of the two traction assemblies are respectively fixedly installed on the outer ends of the two workbenches.

5. A novel single pipe ultrasonic internal detector device as claimed in claim 4, wherein, The drums of the two sets of electric winches with traction components, the two rollers of the multiple sets of support rollers, and the extension tubes of the two sets of movable extension tube frame components are in a straight line laterally.

6. A novel single-channel ultrasonic internal detector device according to claim 1, characterized in that, The ultrasonic probe has traction rings fixedly installed on both sides of the probe frame. The hooks of the two traction rings and the two sets of traction components are hooked and connected. Water-blocking cups are fixedly installed on both sides of the ultrasonic probe. Support cups and sealing cups are fixedly installed on both sides of the probe frame.

7. A novel single pipe ultrasonic internal detector device as claimed in claim 6, wherein, The ultrasonic probe has an opening in one of its water-retaining cups, a supporting cup on one side of the probe holder, and a sealing cup. A rubber tube with a length allowance is installed in the opening, with one side of the rubber tube located between the inner sides of the two water-retaining cups.

8. A novel single pipe ultrasonic internal detector device as claimed in claim 7, wherein, The water tank assembly includes a tank body, valves, and a water pump. The water pump's inlet end is fixedly connected to the water outlet pipe at the bottom of the tank body. The water pump's outlet end is connected in series with the valve and fixedly connected to the other end of the hose. The tank body is filled with water.

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