Automatic pressure vessel wall thickness measuring and data recording device

Abstract

The application relates to a pressure vessel wall thickness automatic measuring and data recording device, which belongs to the technical field of pressure vessel inspection and detection, and can realize automatic measurement of the metal structure wall thickness of multiple positions of a vertical pressure vessel cylinder section, storage of the wall thickness data, positioning and recording of the wall thickness test positions, and the like. In the pressure vessel wall thickness automatic measuring and data recording device, a motion assembly is used for realizing the motion of a measuring host in a horizontal direction along the circumferential direction of the pressure vessel or in a vertical direction along the axial direction of the pressure vessel, and realizing the measurement of the wall thickness of different positions on the cylindrical cylinder section; an electromagnetic ultrasonic thickness gauge is used for realizing the non-contact measurement of the wall thickness of the pressure vessel cylinder body; a laser ranging sensor is used for measuring the height of the measuring host from the ground, so as to realize the positioning of the wall thickness measuring point in the vertical direction; and an electronic compass is used for measuring the position of the measuring host in the circumferential direction of the pressure vessel cylinder section, so as to realize the positioning of the wall thickness measuring point in the horizontal direction.

Description

Technical Field

[0001] This utility model relates to the field of pressure vessel inspection and testing technology, and in particular to an automatic pressure vessel wall thickness measurement and data recording device, especially an automatic metal pressure vessel wall thickness measurement and data recording device. Background Technology

[0002] Currently, pressure vessels are indispensable key equipment in industrial production, widely used for storing and transporting high-temperature, high-pressure, or flammable and explosive fluid media. They provide core reaction, heat transfer, separation, and storage functions for process industries such as chemical, energy, and pharmaceutical industries. Their safe and stable operation is directly related to the continuity of the entire production system, product quality, and personal and property safety.

[0003] In the inspection and testing of pressure vessels, wall thickness measurement is of paramount importance. As the vessel wall gradually thins under long-term exposure to internal pressure, media corrosion, erosion, and high temperatures, wall thickness measurement is the most direct and critical indicator for assessing the integrity of the vessel's main structure and its pressure-bearing capacity. Through accurate measurement, the location and amount of wall thinning can be identified in a timely manner, accurately determining whether it is within the safety threshold. This provides a decisive basis for assessing the remaining service life of the equipment and preventing catastrophic accidents such as rupture and explosion caused by insufficient strength. It is an important line of defense and economic lifeline for ensuring the inherent safety of pressure vessels. Utility Model Content

[0004] The purpose of this utility model is to provide an automatic pressure vessel wall thickness measurement and data recording device, which can automatically measure the metal structure wall thickness of multiple parts of the vertical pressure vessel cylinder section at the inspection and testing site, as well as store the wall thickness data, and can also locate and record the wall thickness test parts.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: An automatic pressure vessel wall thickness measurement and data recording device includes: a measurement host in the form of a four-wheeled mobile trolley, and a handheld mobile terminal electrically connected to the measurement host; The measuring host includes: a device housing, and motion components mounted on the device housing, an electromagnetic ultrasonic thickness gauge, a laser rangefinder, and an electronic compass; The motion component is installed at the bottom of the device housing. The motion component is used to enable the measuring host to move horizontally along the circumference of the pressure vessel, or vertically along the axial direction of the pressure vessel, and to measure the wall thickness of different parts of the cylindrical section. The thickness measuring probe of the electromagnetic ultrasonic thickness gauge is located on the bottom surface of the device housing. The electromagnetic ultrasonic thickness gauge is used to realize non-contact measurement of the wall thickness of the pressure vessel cylinder. The laser rangefinder is mounted on the side of the device housing and points to the ground when in operation. The laser rangefinder is used to measure the height of the measuring host from the ground in order to locate the wall thickness measurement point in the vertical direction. The electronic compass is installed on the top surface of the device housing and its azimuth measuring axis points horizontally during operation. The electronic compass is used to measure the position of the measuring host in the circumferential direction of the pressure vessel cylinder section, so as to achieve horizontal positioning of the wall thickness measuring point.

[0006] In practical applications, the measuring host is equipped with a processor inside its housing and a wireless communication unit connected to the processor.

[0007] After the measuring host moves to the pre-planned position, the processor controls the electromagnetic ultrasonic thickness gauge to perform the wall thickness measurement task and sends the wall thickness data and measurement point position data to the handheld mobile terminal through the wireless communication unit for recording, display and analysis.

[0008] Specifically, the motion component includes: a steering motor connected to the device housing, the output shaft of the steering motor being connected to a bracket, the bracket being fitted with a magnetic wheel via a rotating shaft, and the magnetic wheel being connected to the output shaft of a motion motor via the rotating shaft; the steering motor and the motion motor are controlled by the processor; The magnetic wheel is used to achieve the magnetic attraction movement of the measuring host on the surface of the pressure vessel; The motion motor is used to control the speed and direction of movement of the measuring host; The steering motor is used to control the bracket to rotate 90° forward or 90° backward, so as to change the direction of travel of the magnetic wheel and realize the switching of the measuring host in the horizontal circumferential motion mode and the vertical axial motion mode. The motion motor is used to control the rotation of the magnetic wheel to achieve crawling on the wall of the pressure vessel section.

[0009] Compared with existing technologies, the automatic pressure vessel wall thickness measurement and data recording device of this utility model has the following advantages: The automatic pressure vessel wall thickness measurement and data recording device provided by this utility model allows for the positioning of the device on the pressure vessel after inputting the location information of the wall thickness measurement points. It utilizes a laser rangefinder and electronic compass to automatically measure the metal wall thickness at multiple points on the cylindrical surface of the pressure vessel section. The device then transmits the wall thickness measurement data and the location information of the measurement points to a handheld mobile terminal device for data recording and result traceability. In other words, the automatic pressure vessel wall thickness measurement and data recording device provided by this utility model offers advantages such as high automation, high informatization, and high operational efficiency. It can be widely used, especially for the rapid measurement and assessment of corrosion in older vertical pressure vessel cylinders with long service lives. Attached Figure Description

[0010] Figure 1 A schematic diagram of the structure of the automatic pressure vessel wall thickness measurement and data recording device provided in this embodiment of the utility model; Figure 2 A schematic diagram of the moving components in the pressure vessel wall thickness automatic measurement and data recording device provided in this embodiment of the utility model; Figure 3 A schematic diagram showing the structure of the motion component configured to allow the measuring host to move horizontally on the surface of the pressure vessel. Figure 4 A schematic diagram showing the structure of the motion component configured to allow the measuring host to move up and down on the surface of the pressure vessel. Figure 5 A schematic diagram illustrating the usage status of the automatic pressure vessel wall thickness measurement and data recording device provided in this embodiment of the utility model; Figure 6 A schematic diagram illustrating the principle of positioning the measuring point of the measuring host in the vertical direction of the pressure vessel; Figure 7 This is a schematic diagram illustrating the principle of positioning the measuring point of the measuring host in the circumferential (horizontal) direction of the pressure vessel.

[0011] Figure label: 1- Measurement host; 2- Handheld mobile terminal; 11-Device housing; 12-Motion component; 13-Electromagnetic ultrasonic thickness gauge; 14-Laser rangefinder sensor; 15-Electronic compass; 121-Steering motor; 122-Bracket; 123-Magnetic wheel; 124-Motion motor. Detailed Implementation

[0012] For ease of understanding, the automatic pressure vessel wall thickness measurement and data recording device provided in the embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0013] This utility model provides an automatic pressure vessel wall thickness measurement and data recording device, such as... Figures 1-7 As shown, it includes: a measuring host 1 with a four-wheeled mobile trolley structure, and a handheld mobile terminal 2 that is electrically connected to the measuring host 1; The measuring host 1 includes: a device housing 11, and a motion component 12 mounted on the device housing 11, an electromagnetic ultrasonic thickness gauge 13, a laser range sensor 14, and an electronic compass 15; The motion component 12 is installed at the bottom of the device housing 11. The motion component 12 is used to enable the measuring host 1 to move horizontally along the circumference of the pressure vessel, or vertically along the axial direction of the pressure vessel, and to measure the wall thickness of different parts on the cylindrical section. The thickness measuring probe of the electromagnetic ultrasonic thickness gauge 13 is located on the bottom surface of the device housing 11. The electromagnetic ultrasonic thickness gauge 13 is used to realize non-contact measurement of the wall thickness of the pressure vessel cylinder. The laser rangefinder 14 is mounted on the side of the device housing 11 and points to the ground when working. The laser rangefinder 14 is used to measure the height of the measuring host 1 from the ground in order to realize the vertical positioning of the wall thickness measurement point. The electronic compass 15 is installed on the top surface of the device housing 11 and the azimuth measuring axis points to the horizontal direction when it is working. The electronic compass 15 is used to measure the position of the measuring host 1 in the circumferential direction of the pressure vessel cylinder section, so as to realize the horizontal positioning of the wall thickness measuring point.

[0014] Compared with the prior art, the automatic pressure vessel wall thickness measurement and data recording device described in this embodiment of the present invention has the following advantages: The automatic pressure vessel wall thickness measurement and data recording device provided in this embodiment of the invention allows for the positioning of the device on the pressure vessel based on the laser rangefinder 14 and electronic compass 15 after inputting the location information of the wall thickness measurement points. It automatically measures the metal wall thickness at multiple points on the cylindrical surface of the pressure vessel section and sends the wall thickness measurement data and measurement point location information to a handheld mobile terminal 2 for data recording and result traceability. In other words, the automatic pressure vessel wall thickness measurement and data recording device provided in this embodiment of the invention has advantages such as high automation, high informatization, and high operational efficiency. It can be widely used, especially for the rapid measurement and assessment of corrosion in old vertical pressure vessel cylinders with long service lives.

[0015] In practical applications, such as Figure 5As shown, the housing 11 of the above-mentioned measuring host 1 may be equipped with a processor (not shown in the figure) and a wireless communication unit connected to the processor; the measuring host 1 and the handheld mobile terminal 2 can communicate through wireless communication methods such as Wi-Fi or Bluetooth, so as to effectively send the wall thickness measurement data and measurement point positioning data of the measuring host 1 to the handheld mobile terminal 2 for data display, storage or analysis.

[0016] Among them, such as Figure 5 Combination Figure 6 and Figure 7 As shown, after the measurement host 1 moves to the pre-planned position, the processor can control the electromagnetic ultrasonic thickness gauge 13 to perform the wall thickness measurement task and send the wall thickness data and measurement point position data to the handheld mobile terminal 2 through the wireless communication unit for recording, display and analysis.

[0017] Specifically, such as Figures 1-4 As shown, the motion component 12 may include: a steering motor 121 connected to the device housing 11; the output shaft of the steering motor 121 may be connected to a bracket 122; the bracket 122 may be fitted with a magnetic wheel 123 via a rotating shaft; and the magnetic wheel 123 may be connected to the output shaft of a motion motor 124 via a rotating shaft. Furthermore, both the steering motor 121 and the motion motor 124 are controlled by a processor. The magnetic wheel 123 can be used to realize the magnetic attraction movement of the measuring host 1 on the surface of the pressure vessel; The motion motor 124 can be used to control the speed and direction of movement of the measuring host 1, such as moving from left to right, from right to left, from bottom to top, and from top to bottom (in combination). Figure 3 and Figure 4 (as shown) The steering motor 121 can be used to control the bracket 122 to rotate 90° forward or 90° backward, so as to change the direction of travel of the magnetic wheel 123 and realize the switching of the measuring host 1 in the horizontal circumferential motion and the vertical axial motion mode. The motion motor 124 can be used to control the rotation of the magnetic wheel 123 to achieve crawling on the wall of the pressure vessel section; That is, the motion component 12 can be used to realize the circumferential movement of the measuring host 1 on the surface of the pressure vessel cylinder, or to realize the vertical movement on the surface of the pressure vessel cylinder by rotating 90° through the steering motor 121; a schematic diagram of the motion component 12 configured to make the measuring host 1 move horizontally on the surface of the pressure vessel is shown below. Figure 3 As shown in the diagram, the motion component 12 is configured to move up and down on the surface of the pressure vessel while measuring the host machine 1. Figure 4 As shown.

[0018] The following detailed description, with reference to the accompanying drawings, illustrates the measurement process and principle of the automatic pressure vessel wall thickness measurement and data recording device provided in this embodiment of the present invention: The device performs automatic multi-point wall thickness measurement of vertical pressure vessels as follows: Figure 5 As shown, for large vertical pressure vessels, especially those with external insulation or anti-corrosion layers, the measuring host 1 can be placed inside the pressure vessel for measurement without damaging the insulation or anti-corrosion layers. The measuring host 1 and the handheld mobile terminal 2 can communicate wirelessly via Wi-Fi or Bluetooth. The wall thickness measurement data and measurement point location data of the measuring host 1 are sent to the handheld mobile terminal 2 for data display, storage, or analysis. The tester can set the position of each measuring point of the vertical pressure vessel and the measurement sequence of each measuring point by operating the software on the handheld mobile terminal 2. During the wall thickness measurement, the handheld mobile terminal 2 automatically and dynamically controls the movement of the measuring host 1 and performs the thickness measurement operation, or writes the operation information such as measurement position, measurement sequence, and movement speed into the processor of the measuring host 1 to realize the automatic measurement of the measuring host 1. Example of device usage: Assume that during the wall thickness detection of a vertical pressure vessel, it is necessary to measure the wall thickness data at 24 locations evenly distributed on the cylindrical section. The measurement points are distributed on 4 horizontal planes, and 6 wall thickness data are measured on each horizontal plane. The measuring host 1 is attached to the bottom of the pressure vessel where the wall thickness needs to be measured. The handheld mobile terminal 2 is controlled to write the measurement point location information and measurement sequence planning information to the measuring host 1. Then, the measuring host 1 performs autonomous movement and autonomous thickness measurement on the outer wall of the vessel. During the movement, the laser range sensor 14 and electronic compass 15 are used to locate the crawling position. When it reaches the preset position, the thickness measurement operation is performed, and the position data and wall thickness data are sent to the handheld mobile terminal 2. The wall thickness data measurement of the 6 thickness measurement points on the bottom horizontal plane can be performed first. Then, the motion component 12 performs a 90° reversal, and the measuring host 1 moves upward to the second horizontal plane to perform the wall thickness data measurement of the 6 thickness measurement points on the second horizontal plane. The wall thickness measurement is then performed sequentially for all preset points, and the wall thickness measurement ends. The positioning principle of the measuring host 1 is as follows: Figure 6 and Figure 7As shown, since the measuring optical axis of the laser rangefinder 14 on the measuring host 1 is perpendicular to the azimuth data axis of the electronic compass 15, the laser rangefinder 14 always points perpendicularly to the ground during the movement of the measuring host 1, and the azimuth data axis of the electronic compass 15 always points to the horizontal direction; the position information is [H, θ], where H is the distance of the measuring host 1 from the bottom surface on the pressure vessel, and θ is the angle between the tangent direction of the measuring host 1 crawling on the cylinder section and the initial tangent direction of the initial measurement position; for example, when the measuring host 1 first adheres to the pressure vessel, the azimuth data axis of the electronic compass 15 on the measuring host 1 points to 30° (A->A1 direction), and after running for a certain period of time, it points to 89° (B->B1 direction). The initial tangent direction angle is defined as 0°, then θ is 59° (89°-30°).

[0019] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the protection scope of the claims.

Claims

1. A device for automatic measurement of wall thickness and data recording of pressure vessels, characterized in that, include: A measuring host with a four-wheeled mobile cart structure, and a handheld mobile terminal electrically connected to the measuring host; The measuring host includes: a device housing, and motion components mounted on the device housing, an electromagnetic ultrasonic thickness gauge, a laser rangefinder, and an electronic compass; The motion component is installed at the bottom of the device housing. The motion component is used to enable the measuring host to move horizontally along the circumference of the pressure vessel, or vertically along the axial direction of the pressure vessel, and to measure the wall thickness of different parts of the cylindrical section. The thickness measuring probe of the electromagnetic ultrasonic thickness gauge is located on the bottom surface of the device housing. The electromagnetic ultrasonic thickness gauge is used to realize non-contact measurement of the wall thickness of the pressure vessel cylinder. The laser rangefinder is mounted on the side of the device housing and points to the ground when in operation. The laser rangefinder is used to measure the height of the measuring host from the ground in order to locate the wall thickness measurement point in the vertical direction. The electronic compass is installed on the top surface of the device housing and its azimuth measuring axis points horizontally during operation. The electronic compass is used to measure the position of the measuring host in the circumferential direction of the pressure vessel cylinder section, so as to achieve horizontal positioning of the wall thickness measuring point.

2. The automatic wall thickness measuring and data recording device for pressure vessels according to claim 1, characterized in that The measuring host has a processor and a wireless communication unit connected to the processor inside its housing.

3. The automatic wall thickness measuring and data recording device for pressure vessels according to claim 2, characterized in that After the measuring host moves to the pre-planned position, the processor controls the electromagnetic ultrasonic thickness gauge to perform the wall thickness measurement task and sends the wall thickness data and measurement point position data to the handheld mobile terminal through the wireless communication unit for recording, display and analysis.

4. The automatic wall thickness measuring and data recording device for pressure vessels according to claim 3, characterized in that The motion component includes: a steering motor connected to the housing of the device; the output shaft of the steering motor is connected to a bracket; a magnetic wheel is mounted on the bracket via a rotating shaft; and the magnetic wheel is connected to the output shaft of a motion motor via the rotating shaft; the steering motor and the motion motor are controlled by the processor. The magnetic wheel is used to achieve the magnetic attraction movement of the measuring host on the surface of the pressure vessel; The motion motor is used to control the speed and direction of movement of the measuring host; The steering motor is used to control the bracket to rotate 90° forward or 90° backward to change the direction of travel of the magnetic wheel and realize the switching of the measuring host in horizontal circumferential motion and vertical axial motion mode. The motion motor is used to control the rotation of the magnetic wheel to achieve crawling on the wall of the pressure vessel section.

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