Pressure vessel surface pit measuring device and inspection system

Abstract

The utility model discloses a pressure vessel surface pit measuring device and an inspection system. The measuring device comprises a shell, a line laser contour sensor and a processor. A support and a lead screw are installed in the shell, a motor is installed on the support, the lead screw is arranged on the support, and the lead screw is connected with the output end of the motor. The line laser contour sensor is arranged on the lead screw and driven by the motor to move in the axis direction of the lead screw. The processor is electrically connected with the motor and the line laser contour sensor. The linear laser profile sensor is driven by the motor to linearly move on the pressure vessel, so that height difference size data of the surface of the pressure vessel can be automatically scanned and recorded, the accuracy and the automation level of surface pit measurement of the pressure vessel are improved, and the inspection efficiency and the inspection quality are improved.

Description

Technical Field

[0001] This utility model relates to the field of pressure vessel inspection technology, and in particular to a pressure vessel surface pit measuring device and inspection system. Background Technology

[0002] A pressure vessel is a sealed device that holds gas or liquid under pressure. Pressure vessels are a significant category of special equipment, subject to safety inspections and safety status classification management by special equipment inspection agencies. According to special equipment safety technical specifications, cracks are not permitted on the inner or outer surfaces of pressure vessels; if cracks exist, they must be ground away. If the depth of the pit formed after grinding is less than the wall thickness allowance, the pit is permissible; otherwise, the geometric dimensions of the pit must be measured to determine if it falls within the allowable range. Traditional inspection methods for measuring the geometric dimensions of pits on pressure vessel surfaces involve manual measurement using steel rulers or specialized mechanical measuring tools, which suffers from low accuracy and low inspection efficiency. Utility Model Content

[0003] This invention aims to solve at least one of the technical problems existing in the prior art. To this end, this invention proposes a pressure vessel surface pit measuring device and inspection system, which improves the accuracy and automation level of pressure vessel surface pit measurement and increases inspection efficiency.

[0004] On one hand, this utility model embodiment provides a device for measuring pits on the surface of a pressure vessel, comprising:

[0005] A housing, inside which a bracket and a lead screw are installed, a motor is mounted on the bracket, and the lead screw is mounted on the bracket and connected to the output end of the motor;

[0006] A line laser profile sensor is mounted on the lead screw and is driven by the motor to move along the axis of the lead screw.

[0007] The processor is electrically connected to the motor and the line laser profile sensor, respectively.

[0008] According to some embodiments of the present invention, the bracket includes a first support plate and a second support plate, the motor is mounted on the first support plate, and the second support plate is connected to the first support plate.

[0009] According to some embodiments of the present invention, a guide rail is mounted on the second support plate, the line laser profile sensor is connected to a slider that cooperates with the guide rail, and the motor drives the line laser profile sensor to move linearly along the guide rail.

[0010] According to some embodiments of the present invention, the output end of the motor is connected to a coupling, and the lead screw is connected to the motor through the coupling.

[0011] According to some embodiments of the present invention, a plurality of magnetic bases are installed on one side of the housing. Each magnetic base includes a fixing plate, a magnet, and a clamping plate. The magnet is mounted on the fixing plate, and the clamping plate is connected to the fixing plate.

[0012] According to some embodiments of the present invention, the clamping plate is provided with a through hole, which is used to fix the magnetic base on the housing.

[0013] According to some embodiments of the present invention, the housing is provided with a touch screen, the touch screen is electrically connected to the processor, and the touch screen is used for touch operation and displaying test data.

[0014] According to some embodiments of the present invention, a charging interface is provided on the housing, the charging interface is connected to a battery, and the battery is installed inside the housing.

[0015] According to some embodiments of this utility model, a wireless communication module is also installed inside the housing. The wireless communication module is electrically connected to the processor, and the wireless communication module adopts Bluetooth or Wi-Fi communication.

[0016] On the other hand, this utility model embodiment provides a pressure vessel surface pit inspection system, which includes the pressure vessel surface pit measuring device described above.

[0017] The embodiments of this utility model have at least the following beneficial effects:

[0018] This utility model provides a pressure vessel surface pit measuring device, comprising a housing, a line laser profile sensor, and a processor. The measuring device is placed on the pressure vessel, and the scanning speed and distance of the line laser profile sensor are set. Driven by a motor, the line laser profile sensor moves linearly across the pressure vessel, automatically scanning and recording the height difference dimensions of the pressure vessel surface. This measuring device can automatically measure the dimensions of pits on the pressure vessel surface after cracks have been ground down. The pit size measurement results are used to assist in the safety level assessment of the pressure vessel during inspection, improving the accuracy and automation level of pressure vessel surface pit measurement, and enhancing inspection efficiency and quality.

[0019] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0020] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0021] Figure 1 This is one of the structural schematic diagrams of the pressure vessel surface pit measuring device according to an embodiment of the present utility model;

[0022] Figure 2 This is a second schematic diagram of the pressure vessel surface pit measuring device according to an embodiment of the present invention;

[0023] Figure 3 This is a block diagram of the pressure vessel surface pit measuring device according to an embodiment of the present utility model;

[0024] Figure 4 This is a schematic diagram of the support and line laser profile sensor of the pressure vessel surface pit measuring device according to an embodiment of the present invention;

[0025] Figure 5 This is a schematic diagram of the magnetic base of the pressure vessel surface pit measuring device according to an embodiment of the present invention;

[0026] Figure 6 This is a schematic diagram of the pressure vessel surface pit measuring device and the pressure vessel according to an embodiment of the present invention.

[0027] Figure label:

[0028] Housing 100, charging interface 101, switch button 102, handle 103, bracket 110, first support plate 111, second support plate 112, lead screw 120, motor 130, guide rail 140, slider 150, coupling 160, touch screen 170;

[0029] Line laser profile sensor 200, processor 300, magnetic base 400, fixing plate 410, magnet 420, clamping plate 430, through hole 431, wireless communication module 500, pressure vessel 600. Detailed Implementation

[0030] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0031] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0032] In the description of this utility model, "several" means one or more, "multiple" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. If "first," "second," etc., are used in the description, they are only for distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the sequential relationship of the indicated technical features.

[0033] In the description of this utility model, unless otherwise explicitly defined, the terms "setting", "installing", "connecting" and "connected" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in combination with the specific content of the technical solution.

[0034] The technical solution of this utility model will be described in detail below with reference to the accompanying drawings and specific embodiments.

[0035] Please refer to Figures 1 to 3 This embodiment discloses a device for measuring surface pits on a pressure vessel, including a housing 100, a line laser profile sensor 200, and a processor 300. A bracket 110 and a lead screw 120 are installed inside the housing 100. A motor 130 is mounted on the bracket 110, and the lead screw 120 is mounted on the bracket 110 and connected to the output end of the motor 130. The line laser profile sensor 200 is mounted on the lead screw 120 and is driven by the motor 130 to move along the axis of the lead screw 120. The processor 300 is electrically connected to both the motor 130 and the line laser profile sensor 200. During measurement, the measuring device is placed on the pressure vessel 600, and the scanning speed and scanning distance of the line laser profile sensor 200 are set. The motor 130 drives the line laser profile sensor 200 to move linearly on the pressure vessel 600, automatically scanning and recording the height difference dimensions of the pressure vessel 600 surface. This measuring device can automatically measure the size of the pits on the surface of a pressure vessel after the surface cracks have been ground down. The measurement results are used to assist in the safety level assessment of the pressure vessel during the inspection process, improve the accuracy and automation level of the measurement of pits on the pressure vessel surface, and improve inspection efficiency and quality.

[0036] Please refer to Figure 4The bracket 110 includes a first support plate 111 and a second support plate 112. A motor 130 is mounted on the first support plate 111, and the second support plate 112 is connected to the first support plate 111. A guide rail 140 is mounted on the second support plate 112. A line laser profile sensor 200 is connected to a slider 150 that cooperates with the guide rail 140. The motor 130 drives the line laser profile sensor 200 to move linearly along the guide rail 140. The slider 150 is fixedly connected to the line laser profile sensor 200. The guide rail 140 and the slider 150 are used to limit the movement trajectory of the line laser profile sensor 200, achieving smooth linear movement without rotation, thus improving the accuracy of dimensional measurement. The motor 130 is a servo motor. When the motor 130 rotates continuously, it controls the lead screw 120 to rotate, which in turn controls the slider 150 to drive the line laser profile sensor 200 to move along the axis of the lead screw 120, thereby measuring the size of the pit on the surface of the pressure vessel.

[0037] Please refer to Figure 4 The output end of motor 130 is connected to coupling 160, and lead screw 120 is connected to motor 130 through coupling 160. Using coupling 160 allows power to be smoothly transmitted from the driving end to the driven end, improving the dynamic performance of the shaft system, reducing vibration and noise, improving transmission efficiency and accuracy, ensuring smooth movement of line laser profile sensor 200, and improving measurement accuracy.

[0038] Please refer to Figure 5 Multiple magnetic holders 400 are installed on one side of the housing 100. Each magnetic holder 400 includes a fixing plate 410, a magnet 420, and a clamping plate 430. The magnet 420 is mounted on the fixing plate 410, and the clamping plate 430 is connected to the fixing plate 410. The magnet 420 can be fixed to the fixing plate 410 with screws and nuts. The clamping plate 430 is provided with a through hole 431 for fixing the magnetic holder 400 to the housing 100. During measurement, the measuring device is attracted to the pressure vessel 600 by the magnet 420 of the magnetic holder 400, facilitating measurement.

[0039] Please refer to Figure 2 The housing 100 is equipped with a touch screen 170, which is electrically connected to the processor 300. The touch screen 170 is used for touch operation and displaying inspection data. It enables human-machine interaction during the measurement process, allowing operators to control the measuring device and view the dynamic dimensional changes during the scanning process of the line laser profile sensor 200. It can also view the three-dimensional morphology of the grinding pits on the weld seam of the measured container surface.

[0040] Please refer to Figure 2The housing 100 is provided with a charging interface 101, which is connected to a battery installed inside the housing 100. The battery is a rechargeable battery and is charged through the charging interface 101. For example, the housing 100 is also provided with a switch button 102 and a handle 103, improving the ease of use of the measuring device and increasing its functionality and aesthetics. For example, the housing 100 is a rectangular hollow thin-walled structure, with five closed sides and one open side without a cover, facing the surface of the pressure vessel 600 during measurement, facilitating the measurement of the surface dimensions of the pressure vessel 600 by the line laser profile sensor 200.

[0041] Please refer to Figure 3 The housing 100 also houses a wireless communication module 500, which is electrically connected to the processor 300. The wireless communication module 500 uses Bluetooth or Wi-Fi communication. After measurement, the processor 300 can share the test results externally through the wireless communication module 500. For example, after the test, the measurement results of the pit geometry can be sent to a smart terminal on site.

[0042] This embodiment also discloses a pressure vessel surface pit inspection system, including the pressure vessel surface pit measuring device described above.

[0043] Please refer to Figure 6 The measuring device is stably attached to the pressure vessel 600 using a magnetic base 400. The attachment position should allow the line laser profile sensor 200 to scan all dimensions of the pits during the scanning process. Then, the switch button 102 is turned on to set the scanning speed and scanning distance of the line laser profile sensor 200. The motor 130 drives the line laser profile sensor 200 to move linearly along the guide rail 140, starting the scanning and recording the height difference dimensions of the pressure vessel 600 surface. Based on the data from the line laser profile sensor 200 at different times during the scanning process, as well as the stepping speed and sampling rate of the line laser profile sensor 200, the processor 300 performs a three-dimensional model of the pressure vessel surface. Based on the established three-dimensional model, it automatically analyzes the major axis length, minor axis length, and depth dimensions of the regularized semi-ellipsoidal pits. The analysis results are used to help determine whether the size of the grinding pits on the pressure vessel surface affects the pressure vessel's safety status rating, thereby improving the accuracy and automation level of the pressure vessel surface pit measurement, and improving inspection efficiency and quality.

[0044] The pressure vessel surface pit inspection system also includes a smart terminal, such as a smartphone or tablet. Wireless control of the measurement process is achieved through an APP application on the handheld smart terminal device. Upon starting the pressure vessel surface pit measurement device, motor 130 drives the line laser profile sensor 200 to move linearly along guide rail 140. The dynamic dimensional data measured by the line laser profile sensor 200 can be transmitted to the smart terminal via wireless communication module 500. The APP application allows for 3D reconstruction of the pit dimensions and automatically analyzes the major axis, minor axis, and depth dimensions of the regularized semi-ellipsoid. On-site operators can control the moving speed and step distance of the line laser profile sensor 200 during the dimensional acquisition process on the pressure vessel 600 surface via a touchscreen display or the APP application, thereby controlling the dimensional scanning accuracy and measurement efficiency. After measurement, the processor 300 can share the test results externally via the wireless communication module 500; for example, the measurement results of the pit geometry can be sent to the smart terminal after the test.

[0045] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. A device for measuring pits on the surface of a pressure vessel, characterized in that, include: A housing (100) has a bracket (110) and a lead screw (120) installed inside it. A motor (130) is installed on the bracket (110). The lead screw (120) is mounted on the bracket (110) and is connected to the output end of the motor (130). A line laser profile sensor (200) is mounted on the lead screw (120) and is driven by the motor (130) to move along the axis of the lead screw (120). The processor (300) is electrically connected to the motor (130) and the line laser profile sensor (200).

2. The pressure vessel surface pit measuring device according to claim 1, characterized in that, The bracket (110) includes a first support plate (111) and a second support plate (112). The motor (130) is mounted on the first support plate (111), and the second support plate (112) is connected to the first support plate (111).

3. The pressure vessel surface pit measuring device according to claim 2, characterized in that, A guide rail (140) is mounted on the second support plate (112), and the line laser profile sensor (200) is connected to a slider (150) that cooperates with the guide rail (140). The motor (130) drives the line laser profile sensor (200) to move linearly along the guide rail (140).

4. The pressure vessel surface pit measuring device according to claim 1, characterized in that, The output end of the motor (130) is connected to a coupling (160), and the lead screw (120) is connected to the motor (130) through the coupling (160).

5. The pressure vessel surface pit measuring device according to claim 1, characterized in that, A plurality of magnetic holders (400) are installed on one side of the housing (100). Each magnetic holder (400) includes a fixing plate (410), a magnet (420) and a clamping plate (430). The magnet (420) is mounted on the fixing plate (410) and the clamping plate (430) is connected to the fixing plate (410).

6. The pressure vessel surface pit measuring device according to claim 5, characterized in that, The clamping plate (430) is provided with a through hole (431), which is used to fix the magnetic base (400) on the housing (100).

7. The pressure vessel surface pit measuring device according to claim 1, characterized in that, The housing (100) is provided with a touch screen (170), which is electrically connected to the processor (300). The touch screen (170) is used for touch operation and displaying test data.

8. The pressure vessel surface pit measuring device according to claim 1, characterized in that, The housing (100) is provided with a charging interface (101), the charging interface (101) is connected to a battery, and the battery is installed inside the housing (100).

9. The pressure vessel surface pit measuring device according to claim 1 or 7, characterized in that, The housing (100) is also equipped with a wireless communication module (500), which is electrically connected to the processor (300). The wireless communication module (500) is a Bluetooth or Wi-Fi communication module.

10. A system for inspecting pits on the surface of a pressure vessel, characterized in that, The pressure vessel surface pit inspection system includes the pressure vessel surface pit measuring device according to any one of claims 1 to 9.

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