Underwater pipe group structure eddy current thickness measurement calibration device

Abstract

The utility model is suitable for the field of coating detection, and discloses an eddy current thickness measurement calibration device of an underwater pipe group structure. Comprising a rack, a driving module arranged on the rack, a temperature control water tank arranged on the rack, a probe unit arranged on the driving module, a standard part arranged in the temperature control water tank and a control unit electrically connected with the driving module, the temperature control water tank and the probe unit. The temperature control water tank heats liquid in the tank to a specified temperature, then the coating thickness detection sensor is fixed on the probe unit, the coating thickness detection sensor starts to detect coating data on a standard part and feeds the data back to the control unit, and the control unit analyzes and compares the data with the coating thickness of the standard part. In the whole process, an operator only needs to fix the coating thickness detection sensor on the probe unit, the whole detection and calibration process is automatically operated, the operation is simple, the result is accurate, and different temperatures can be set through the temperature control water tank to calibrate the different temperatures.

Description

Technical Field

[0001] The utility model relates to the field of coating detection, in particular to an eddy current thickness measurement calibration device for an underwater pipe group structure. Background Art

[0002] The working environment of the pipe fittings used in nuclear engineering is usually relatively severe, and the working conditions faced by the pipe fittings are complex. Therefore, it is necessary to apply a coating on the surface of the alloy pipe fittings for protection, and it is necessary to detect the thickness of the coating on the surface of the alloy pipe fittings, which is of great significance to nuclear engineering safety. The coating thickness detection sensors of the existing technology can realize the initial thickness detection of the surface coating of workpieces to determine the qualification rate of workpieces, and realize the surface coating detection of in-service workpieces to judge the safety and service life of workpieces; the monitoring of their working environment conditions can be realized through the thickness analysis of the surface oxide layer and the surface coating layer. It can greatly improve the safety of the project and avoid the occurrence of major safety accidents.

[0003] However, since the detection environment of the coating thickness detection sensor is an underwater state with temperature, and the coating thickness is generally from 1μm to dozens of μm, the underwater environment at different temperatures will cause great errors to the coating thickness detection sensor, and there is a lack of calibration and calibration of the coating thickness detection sensor at different temperatures. Summary of the Utility Model

[0004] The technical problem to be solved by the utility model is to provide an eddy current thickness measurement calibration device for an underwater pipe group structure, aiming to solve the problem in the existing technology that there is a lack of calibration and calibration of the coating thickness detection sensor at different temperatures.

[0005] The technical solution adopted by the utility model to solve its technical problems includes: a frame, a driving module arranged on the frame, a temperature control water tank arranged on the frame, a probe unit arranged on the driving module, a standard part arranged in the temperature control water tank, and a control unit electrically connected to the driving module, the temperature control water tank and the probe unit; wherein, the driving module is used to drive the probe unit to move towards the position of the standard part, and the probe unit is used to detect the coating thickness on the standard part.

[0006] In an embodiment, the standard part is tubular, and several standard parts are arranged in a queue in the temperature control water tank, and the surface coating thicknesses of several standard parts are different from each other.

[0007] In an embodiment, a limiting part is further arranged on the frame, and several limiting parts are arranged on the outer side wall of the temperature control water tank to limit the temperature control water tank.

[0008] In one embodiment, the temperature-controlled water tank includes a box body, a heating element and a temperature sensor. The box body, the heating element and the temperature sensor are arranged inside the box body, and the heating element and the temperature sensor are electrically connected to the control unit.

[0009] In one embodiment, a heat preservation cover is further arranged on the upper part of the box body.

[0010] In one embodiment, heat insulation layers are arranged on the outer walls of the box body and the heat preservation cover, and heat preservation materials are filled in the heat insulation layers or the heat insulation layers are of a vacuum structure.

[0011] In one embodiment, the driving module includes an X-axis moving unit, a Y-axis moving unit and a Z-axis moving unit. The X-axis moving unit is arranged on the rack, the Z-axis moving unit is arranged on the X-axis moving unit, the Y-axis moving unit is arranged on the Z-axis moving unit, and the probe unit is arranged on the Y-axis moving unit; or the Y-axis moving unit is arranged on the rack, the Z-axis moving unit is arranged on the Y-axis moving unit, the X-axis moving unit is arranged on the Z-axis moving unit, and the probe unit is arranged on the X-axis moving unit.

[0012] In one embodiment, the X-axis moving unit, the Y-axis moving unit and the Z-axis moving unit are servo electric screw rod modules, and the X-axis moving unit, the Y-axis moving unit and the Z-axis moving unit are electrically connected to the control unit.

[0013] In one embodiment, the probe unit includes a fixing member connected to the driving module, a clamping member arranged on the fixing member, and a coating thickness detection sensor clamped inside the clamping member.

[0014] In one embodiment, the rack includes a platform, a frame connected below the platform, and a pulley group arranged below several of the frames.

[0015] Implementing the present utility model has the following beneficial effects: The temperature-controlled water tank heats the liquid in the tank to a specified temperature, then fixes the coating thickness detection sensor on the probe unit, and the driving module drives the probe unit to move towards the standard part. When the probe unit reaches the standard part, the coating thickness detection sensor starts to detect the coating data on the standard part and feeds the data back to the control unit. The control unit analyzes and compares the data with the coating thickness of the standard part. In the whole process, the operator only needs to fix the coating thickness detection sensor on the probe unit. The detection and calibration process is fully automatic, with simple operation, accurate results, and different temperatures can be set through the temperature-controlled water tank for calibration at different temperatures. Description of the Drawings

[0016] To more clearly illustrate the technical solution of the present utility model, the following will further explain the present utility model in conjunction with the accompanying drawings and embodiments. It should be understood that the following drawings only show certain embodiments of the present utility model, and thus should not be regarded as a limitation of the scope. For those of ordinary skill in the art, without creative efforts, other related drawings can also be obtained based on these drawings. In the drawings:

[0017] Figure 1 is the overall view of an eddy current thickness measurement calibration device for an underwater pipe group structure in an embodiment of the present utility model;

[0018] Figure 2 is the overall view with a cover of an eddy current thickness measurement calibration device for an underwater pipe group structure in an embodiment of the present utility model;

[0019] Figure 3 is the top view of an eddy current thickness measurement calibration device for an underwater pipe group structure in an embodiment of the present utility model;

[0020] Figure 4 is the three-dimensional view of the probe unit of an eddy current thickness measurement calibration device for an underwater pipe group structure in an embodiment of the present utility model;

[0021] Figure 5 is the temperature calibration curve graph of an eddy current thickness measurement calibration device for an underwater pipe group structure in an embodiment of the present utility model.

[0022] Reference Signs of the Drawings

[0023] 100, frame; 110, platform; 120, frame; 130, pulley block; 200, drive module; 210, Z-axis moving unit; 220, Y-axis moving unit; 230, X-axis moving unit; 300, probe unit; 310, fixing member; 320, clamping member; 400, box body; 410, heat preservation cover; 411, avoidance groove; 420, heating element; 430, limiting member; 500, standard part; 600, control unit. Detailed implementation manners

[0024] For a clearer understanding of the technical features, objectives, and effects of the present utility model, the following will now describe in detail the specific implementation manners of the present utility model with reference to the accompanying drawings. In the following description, it should be understood that the orientation or positional relationships indicated by "front", "rear", "upper", "lower", "left", "right", "longitudinal", "transverse", "vertical", "horizontal", "top", "bottom", "inner", "outer", "head", "tail", etc. are based on the orientation or positional relationships shown in the accompanying drawings and are constructed and operated in a specific orientation. This is only for the convenience of describing the present technical solution and does not indicate that the indicated devices or elements must have a specific orientation. Therefore, it should not be construed as a limitation of the present utility model.

[0025] It should also be noted that, unless otherwise clearly stipulated and defined, terms such as "installation", "connection", "linkage", "fixation", "setting" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the communication inside two components or the interaction relationship between two components. When a component is referred to as "above" or "below" another component, the component can be "directly" or "indirectly" located above the other component, or there may also be one or more intermediate components. Terms such as "first", "second", "third", etc. are only for the convenience of describing the technical solution of the present invention, and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first", "second", "third", etc. can explicitly or implicitly include one or more of such features. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0026] Figures 1 to 5 Fig. shows an eddy current thickness measurement calibration device for an underwater pipe group structure in an embodiment of the present utility model. This eddy current thickness measurement calibration device for an underwater pipe group structure can be used for quickly calibrating a coating thickness detection sensor underwater, and it may include a frame 100, a driving module 200 arranged on the frame 100, a temperature control water tank arranged on the frame 100, a probe unit 300 arranged on the driving module 200, a standard part 500 arranged in the temperature control water tank, and a control unit 600 electrically connected to the driving module 200, the temperature control water tank and the probe unit 300. Among them, the driving module 200 drives the probe unit 300 to move towards the position of the standard part 500, and the probe unit 300 is used to detect the coating thickness on the standard part 500. The temperature control water tank heats the liquid in the tank to a specified temperature, then fixes the coating thickness detection sensor on the probe unit 300, the driving module 200 drives the probe unit 300 to move towards the standard part 500, when the probe unit 300 reaches the standard part 500, the coating thickness detection sensor starts to detect the coating data on the standard part 500 and feeds the data back to the control unit 600, and the control unit 600 analyzes and compares the data with the coating thickness of the standard part 500. In the whole process, the operator only needs to fix the coating thickness detection sensor to the probe unit 300. The detection and calibration process is fully automatic, with simple operation, accurate results, and different temperatures can be set through the temperature control water tank for calibration at different temperatures.

[0027] It can be understood that the setting of the liquid temperature in the temperature control water tank is determined by the actual on-site environmental requirements and design requirements.

[0028] In this embodiment, the temperatures of the temperature control water tank are preferably 20°C, 40°C, 60°C, 80°C, and 100°C to obtain the thickness characteristic values at different temperatures and acquire the calibration curve, as Figure 5 shown.

[0029] Figure 1 and Figure 3 show that in one embodiment, the standard part 500 may include that the standard part 500 is tubular, and several standard parts 500 are arranged in a queue in the temperature control water tank. The tubular standard part 500 simulates the shape of the actual workpiece, making the calibration data closer to the actual working conditions.

[0030] Figure 1 and Figure 3 show that in one embodiment, the standard part 500 may include that the surface coating thicknesses of several standard parts 500 are different. The different coating thicknesses of multiple pipe fittings can be calibrated all at once without replacing the standard part 500 each time, reducing the complexity of the operation.

[0031] It can be understood that the coating thickness of the standard part 500 is determined by the actual on-site environmental requirements and design requirements.

[0032] In this embodiment, the coating thickness of the standard part 500 is preferably 2μm, 6μm, and 10μm to obtain the thickness characteristic values under different coatings and acquire the calibration curve, as Figure 5 shown.

[0033] Figures 1 to 3 show that in one embodiment, the frame may include that a limiting member 430 is further provided on the frame. Several limiting members 430 are arranged at the outer side wall of the temperature control water tank to limit the temperature control water tank. When the liquid in the temperature control water tank needs to be replaced, it can be lifted out from the limiting member 430, and when reinstalled, the temperature control water tank can be vertically placed down from above into the limiting member 430. The operation is simple and the positioning is accurate.

[0034] Figures 1 to 3 show that in one embodiment, the temperature control water tank may include a box body 400, a heating element 420, and a temperature sensor. The box body 400, the heating element, and the temperature sensor are arranged in the box body 400. The heating element and the temperature sensor are electrically connected to a control unit 600. The temperature sensor feeds back the temperature data to the control unit 600, and the control unit 600 controls the heating element to heat the liquid in the box body 400. When the control unit 600 determines that the temperature reaches the specified value according to the data fed back by the temperature sensor, it stops the heating of the heating element.

[0035] In a specific embodiment, the heating element 420 is an electric heating element 420, and the heating element 420 is arranged at the bottom of the box body 400 for heating.

[0036] Figure 2It is shown that in one embodiment, the box body 400 may include a heat insulation cover 410 provided on the upper part of the box body 400. The heat insulation cover 410 can reduce heat loss from above, keep the temperature of the liquid in the box body 400 more uniform, reduce the calibration error, and improve the accuracy.

[0037] In a specific embodiment, an avoidance groove 411 is provided on the heat insulation cover 410, and the avoidance groove 411 is used for passing through the probe unit 300.

[0038] Figure 2 It is shown that in one embodiment, the outer walls of the temperature control water tank, including the box body 400 and the heat insulation cover 410, are provided with heat insulation layers. The heat insulation layers are filled with heat insulation materials or the heat insulation layers are of a vacuum structure. The heat insulation layers can reduce heat loss from the side walls and the bottom of the box body 400, keep the temperature of the liquid in the box body 400 more uniform, eliminate the need for the heating element 420 to frequently heat, reduce the temperature calibration error, and improve the accuracy.

[0039] In a specific embodiment, the heat insulation materials are materials such as phenolic resin, polyurethane, rubber and plastic sponge, polyethylene, polystyrene foam, and glass wool.

[0040] It can be understood that the heat insulation layer being of a vacuum structure is a double-layer vacuum structure. The vacuum can block heat transfer and achieve a heat insulation effect.

[0041] Figures 1 to 3 It is shown that in one embodiment, the driving module 200 may include an X-axis moving unit 230, a Y-axis moving unit 220, and a Z-axis moving unit 210. The X-axis moving unit 230 is arranged on the frame 100, the Z-axis moving unit 210 is arranged on the X-axis moving unit 230, the Y-axis moving unit 220 is arranged on the Z-axis moving unit 210, and the probe unit 300 is arranged on the Y-axis moving unit 220; or the Y-axis moving unit 220 is arranged on the frame 100, the Z-axis moving unit 210 is arranged on the Y-axis moving unit 220, the X-axis moving unit 230 is arranged on the Z-axis moving unit 210, and the probe unit 300 is arranged on the X-axis moving unit 230. The three-axis motion system composed of the X-axis, Y-axis, and Z-axis is used for precise displacement control of the probe unit 300, and the three-axis system can ensure that the probe unit 300 can accurately reach the designated position of the standard part 500.

[0042] It can be understood that the driving module 200 can adopt other types of driving methods, such as four-axis robots, six-axis robots, and cylinder transmissions.

[0043] Figures 1 to 3It is shown that in one embodiment, the driving module 200 may include an X-axis moving unit 230, a Y-axis moving unit 220, and a Z-axis moving unit 210, which are servo electric lead screw modules. The X-axis moving unit 230, the Y-axis moving unit 220, and the Z-axis moving unit 210 are electrically connected to the control unit 600. The servo electric lead screw module has a relatively high moving accuracy, which can reach 0.01 mm, and can ensure that the probe unit 300 is moved to the precise position each time, so that the probe unit 300 can stop at the position where the standard part 500 to be detected is located each time.

[0044] Figure 4 It is shown that in one embodiment, the probe unit 300 may include a fixing member 310 connected to the driving module 200, a clamping member 320 provided on the fixing member 310, and a coating thickness detection sensor clamped within the clamping member 320. The user only needs to place the coating thickness detection sensor within the clamping member 320. When the current coating thickness detection sensor is calibrated, the clamping can be quickly released and the current coating thickness detection sensor can be removed.

[0045] In a specific embodiment, the clamping member 320 is a reed-type clamping. By extending elastic reeds from the fixing member 310, the middle section of the reed is folded into a V shape, and the reed extends towards the fixing member 310 and abuts against it. The clamping member 320 clamps the coating thickness detection sensor through its own resilience.

[0046] Figure 1 and Figure 2 It is shown that in one embodiment, the frame 100 may include a platform 110, a frame 120 connected below the platform 110, and a pulley group 130 provided below several frames 120. The frame 120 serves as the support for the platform 110, and several pulley groups 130 can provide the sliding ability for the frame 100, facilitating the handling of the device.

[0047] In a specific embodiment, the frame 120 is an aluminum profile pipe fitting. The aluminum profile pipe fitting has sufficient strength and less weight, which can greatly reduce the overall weight of the device and facilitate the user to move the entire device.

[0048] It can be understood that the above embodiments only represent the preferred embodiments of the present utility model, and the description is relatively specific and detailed, but it cannot be construed as a limitation to the scope of the patent of the present utility model. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present utility model, the above technical features can be freely combined, and several deformations and improvements can also be made, which all belong to the protection scope of the present utility model. Therefore, all equivalent transformations and modifications made to the scope of the claims of the present utility model shall fall within the scope covered by the claims of the present utility model.

Claims

1. An eddy current thickness measurement calibration device for an underwater pipe group structure, characterized in that, Comprising: A frame (100), a driving module (200) disposed on the frame (100), a temperature-controlled water tank disposed on the frame (100), a probe unit (300) disposed on the driving module (200), a standard part (500) disposed in the temperature-controlled water tank, and a control unit (600) electrically connected to the driving module (200), the temperature-controlled water tank, and the probe unit (300); Wherein, the driving module (200) is used to drive the probe unit (300) to move towards the position of the standard part (500), and the probe unit (300) is used to detect the coating thickness on the standard part (500).

2. The eddy current thickness measurement calibration device for an underwater pipe group structure according to claim 1, characterized in that, The standard part (500) is tubular, and a plurality of the standard parts (500) are arranged in a queue in the temperature-controlled water tank, and the surface coating thicknesses of the plurality of the standard parts (500) are different from each other.

3. An eddy current thickness measurement calibration device for an underwater pipe group structure according to claim 1, characterized in that, A limiting member (430) is further disposed on the frame, and a plurality of the limiting members (430) are disposed on the outer sidewall of the temperature-controlled water tank to limit the temperature-controlled water tank.

4. An eddy current thickness measurement calibration device for an underwater pipe group structure according to claim 1, characterized in that, The temperature-controlled water tank includes a box body (400), a heating element (420), and a temperature sensor. The heating element (420) and the temperature sensor are disposed in the box body (400), and the heating element (420) and the temperature sensor are electrically connected to the control unit (600).

5. An eddy current thickness measurement calibration device for an underwater pipe group structure according to claim 4, characterized in that, A heat-insulating cover (410) is further disposed on the upper part of the box body (400).

6. An eddy current thickness measurement calibration device for an underwater pipe group structure according to claim 5, characterized in that, Heat-insulating layers are disposed on the outer walls of the box body (400) and the heat-insulating cover (410), and heat-insulating materials are filled in the heat-insulating layers or the heat-insulating layers are of a vacuum structure.

7. An eddy current thickness measurement calibration device for an underwater pipe group structure according to claim 1, characterized in that, The driving module (200) includes an X-axis moving unit (230), a Y-axis moving unit (220), and a Z-axis moving unit (210). The X-axis moving unit (230) is disposed on the frame (100), the Z-axis moving unit (210) is disposed on the X-axis moving unit (230), the Y-axis moving unit (220) is disposed on the Z-axis moving unit (210), and the probe unit (300) is disposed on the Y-axis moving unit (220), or; The Y-axis moving unit (220) is disposed on the frame (100), the Z-axis moving unit (210) is disposed on the Y-axis moving unit (220), the X-axis moving unit (230) is disposed on the Z-axis moving unit (210), and the probe unit (300) is disposed on the X-axis moving unit (230).

8. An eddy current thickness measurement calibration device for an underwater pipe group structure according to claim 7, characterized in that The X-axis moving unit (230), the Y-axis moving unit (220), and the Z-axis moving unit (210) are servo electric screw rod modules, and the X-axis moving unit (230), the Y-axis moving unit (220), and the Z-axis moving unit (210) are electrically connected to the control unit (600).

9. An eddy current thickness measurement calibration device for an underwater pipe group structure according to claim 1, characterized in that, The probe unit (300) includes a fixing member (310) connected to the driving module (200), a clamping member (320) disposed on the fixing member (310), and a coating thickness detection sensor clamped in the clamping member (320).

10. An eddy current thickness measurement calibration device for an underwater pipe group structure according to claim 1, characterized in that, The rack (100) includes a platform (110), a frame (120) connected below the platform (110), and a pulley block (130) provided below several of the frames (120).

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