A multi-point detection device for tank wall thickness

Abstract

This invention provides a multi-point detection device for tank wall thickness, comprising: a mobile trolley, the mobile trolley including a chassis, a roller assembly for moving the outer wall of the tank, and a fixed pulley assembly located on the top of the tank; the roller assembly being magnetically connected to the outer wall of the tank; and a traction rope on the chassis passing over the fixed pulley assembly and hanging down to the ground; and a micro-adjustment structure, the micro-adjustment structure including a loading component for assembling the thickness gauge and a traction mechanism. This invention utilizes a combination of manual and automatic equipment to cover a larger area of ​​the tank's outer wall, no longer limited to the area near the vertical ladder, thereby improving the coverage of the tank's outer wall measurement area and expanding the data acquisition range for wall thickness.

Description

Technical Field

[0001] This utility model belongs to the field of storage tank performance testing technology, and in particular relates to a multi-point detection device for storage tank wall thickness. Background Technology

[0002] Storage tanks are sealed steel containers used to store liquids or gases. Most of them are steel storage tanks. Steel storage tank projects are essential and important infrastructure in industries such as petroleum, chemical, grain and oil, food, fire protection, transportation, metallurgy, and national defense. Our economic life is inseparable from steel storage tanks of all sizes. The important role that steel storage tanks play in the development of the national economy is irreplaceable.

[0003] During long-term storage, steel storage tanks require measurement of the tank wall thickness to ensure safety during use. In actual inspections, the measuring equipment is mostly carried out by testers who climb the ladder along the outer wall. However, the ladders are usually set up in advance, limiting the area that can be measured and failing to cover more areas of the tank. Utility Model Content

[0004] This utility model provides a multi-point detection device for tank wall thickness. The utility model is implemented as follows: A multi-point detection device for tank wall thickness includes:

[0005] A mobile trolley, comprising a chassis, a roller assembly for moving the outer wall of a storage tank, and a fixed pulley assembly located on the top of the storage tank. The roller assembly is magnetically connected to the outer wall of the storage tank, and a traction rope on the chassis passes around the fixed pulley assembly and hangs down to the ground.

[0006] The micro-adjustment structure includes a loading component for assembling the thickness gauge and a traction structure for traction loading components that are located away from or near the outer wall of the storage tank.

[0007] Preferably, the traction structure includes a sliding base, a push rod and a traction rod disposed inside the sliding base, the sliding base having a sliding cavity, the traction rod sliding within the sliding cavity, the push rod being disposed within the sliding cavity, and the traction rod moving away from or closer to the outer wall of the storage tank under the action of the push rod.

[0008] Preferably, the roller assembly includes a left wheel, a right wheel, and a front guide wheel, wherein the front guide wheel, the left wheel, and the right wheel form a three-point structure.

[0009] Preferably, the chassis is provided with a traction rod as a connection point for the traction rope, and the front guide wheel is arranged on the side close to the traction rod.

[0010] Preferably, the loading component includes a loading tube and a cap threadedly connected to the loading tube. The loading tube has an open structure at both ends. The cap is assembled on one side of the loading tube. The thickness gauge 500 for detection is inserted into the loading tube from one end of the loading tube.

[0011] Preferably, the loading tube is fixedly connected to the traction base rod.

[0012] Preferably, the chassis is further provided with a T-shaped frame for assembling the micro-adjustment structure, and the T-shaped frame has a sliding area in the middle, through which the loading tube passes to the vicinity of the outer wall of the storage tank.

[0013] Compared with the prior art, the embodiments of this application have the following main advantages:

[0014] The multi-point tank wall thickness detection device provided by this utility model adopts a three-point design for the mobile trolley. Therefore, when the traction rope pulls the mobile trolley, the traction rope can keep the mobile trolley in a relatively vertical upward state. When it reaches the corresponding position, the traction is stopped manually, and the probe of the thickness gauge is pressed against the outer wall of the tank by adjusting the micro-adjustment structure, thereby completing the tank wall thickness measurement. By using a combination of manual and automatic equipment, a larger area of ​​the outer wall of the tank can be covered to a greater extent, no longer limited to the area near the vertical ladder, thereby improving the coverage effect of the measurement area of ​​the outer wall of the tank and expanding the data collection range of the wall thickness. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of a multi-point detection device for tank wall thickness provided by this utility model.

[0016] Figure 2 This is a schematic diagram of the T-shaped frame and micro-adjustment structure of a multi-point detection device for tank wall thickness provided by this utility model.

[0017] Figure 3 This is a schematic diagram of the micro-adjustment structure of a multi-point detection device for tank wall thickness provided by this utility model.

[0018] Figure 4 This is a schematic diagram of the structure of a moving trolley rising along the outer wall of a storage tank in a multi-point detection device for tank wall thickness provided by this utility model.

[0019] Figure 5 This is a schematic diagram of the loading component structure of a multi-point detection device for tank wall thickness provided by this utility model.

[0020] Explanation of reference numerals in the attached figures:

[0021] 100. Mobile trolley; 110. Chassis; 120. T-frame; 130. Traction rope; 140. Traction rod; 210. Left wheel; 220. Right wheel; 230. Front guide wheel; 300. Micro-adjustment structure; 310. Loading component; 311. Loading pipe; 312. Pressure cap; 313. Pressure rod; 320. Traction base rod; 330. Sliding base; 301. Sliding cavity; 400. Tank body; 500. Thickness gauge. Detailed Implementation

[0022] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs; the terminology used herein in the specification of the application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application; the terms "comprising" and "having," and any variations thereof, in the specification, claims, and foregoing drawings of this application are intended to cover non-exclusive inclusion. The terms "first," "second," etc., in the specification, claims, or foregoing drawings of this application are used to distinguish different objects, not to describe a particular order.

[0023] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0024] This utility model embodiment provides a multi-point detection device for tank wall thickness, such as... Figures 1-5 As shown, the multi-point detection device for tank wall thickness includes:

[0025] The mobile trolley 100 includes a chassis 110, a roller assembly for moving the outer wall of the storage tank, and a fixed pulley assembly 150 located on the top of the storage tank. The roller assembly is magnetically connected to the outer wall of the storage tank. A traction rope 130 provided on the chassis 110 passes around the fixed pulley assembly 150 and hangs down to the ground. The traction rope 130 is manually pulled, reducing the need for electric drive equipment and thus reducing the burden of the overall vehicle weight on the roller assembly.

[0026] The micro-adjustment structure 300 includes a loading component 310 for assembling the thickness gauge 500 and a traction structure for traction loading component 310, which is located away from or near the outer wall of the storage tank. The thickness gauge 500 moves along the outer wall of the storage tank under the traction of the moving trolley 100.

[0027] In this embodiment, during the actual measurement process, manual pulling can be used to climb and measure more areas. The fixed pulley component 150 mainly includes a support rod and a fixed pulley with the front end of the support rod. The end of the support away from the fixed pulley is assembled and fixed to the railing of the guardrail on the top of the tank body 400 of the storage tank using a clamp structure. In addition to this method, the support rod can also be pre-installed on the tank body 400 by welding.

[0028] The mobile trolley 100 rises from the bottom to the top of the tank 400. During the rise, it stops to complete the measurement as needed based on the measurement point. After the mobile trolley 100 reaches the top of the tank 400, it is retrieved and another position is selected. The mobile trolley 100 is then pulled up from the bottom to the top of the tank 400 again. The mobile trolley 100 adopts a three-point design, so when the traction rope 130 pulls the mobile trolley 100, the traction rope 130 can keep the mobile trolley 100 in a relatively vertical rising state. When it reaches the corresponding position, the pulling is manually stopped. The probe of the thickness gauge 500 is pressed against the outer wall of the storage tank by adjusting the micro-adjustment structure 300, thereby completing the tank wall thickness measurement.

[0029] By using a combination of manual and automatic equipment, a larger area of ​​the outer wall of the tank 400 is covered, no longer limited to the area near the vertical ladder, thereby improving the coverage of the measurement area of ​​the outer wall of the tank 400 and improving the accuracy of the wall thickness data.

[0030] In this embodiment, the thickness gauge 500 adopts mature equipment in the prior art, mainly an electromagnetic ultrasonic measuring instrument with Bluetooth transmission performance. Currently, the electromagnetic ultrasonic measuring instrument with Bluetooth transmission performance can remotely transmit data to the operator's handheld terminal on the ground or the top of the tank. The loading component 310 is used as an area for storing the electromagnetic ultrasonic measuring instrument.

[0031] In a preferred embodiment of this invention, the traction structure includes a sliding base 330, a push rod and a traction base rod 320 disposed inside the sliding base 330. The sliding base 330 is provided with a sliding cavity 301. The traction base rod 320 slides in the sliding cavity 301. The push rod is disposed inside the sliding cavity 301. The traction base rod 320 moves away from or closer to the outer wall of the storage tank under the action of the push rod.

[0032] The loading component 310 includes a loading tube 311 and a cap 312 threadedly connected to the loading tube 311. The loading tube 311 has an open structure at both ends. The cap 312 is assembled on one side of the loading tube 311. A thickness gauge 500 for detection is inserted into the loading tube 311 from one end. The loading tube 311 is fixedly connected to the traction base rod 320.

[0033] In this embodiment, the loading tube 311 has an internal cavity designed to accommodate the thickness gauge 500. The thickness gauge 500 is a prior art device. The measuring head of the thickness gauge 500 extends from the loading tube 311 through an open structure away from the pressure cap 312. The loading tube 311 slides linearly along the sliding cavity 301 under the action of the guide rail structure. The push rod is an electric push rod, which can be remotely controlled by a ground operator via wired control. The pipe 311 is also equipped with a pressure rod 313, and a pressure sensor is provided at the end of the pressure rod 313. The pressure sensor data is synchronously transmitted to the handheld operating device of the ground operator via wired control. When the pressure rod 313 is flush with the measuring head of the thickness gauge 500, and the measuring head of the thickness gauge 500 is pressed against the outer wall of the tank 400, the pressure rod 313 will also be pressed against the outer wall of the tank 400. The pressure sensor can transmit the pressure data at the time of contact to help determine whether the measuring head of the thickness gauge 500 has completed contact with the outer wall of the tank 400.

[0034] As a preferred embodiment of this invention, the chassis 110 is also provided with a T-shaped frame 120 for assembling the micro-adjustment structure 300. The T-shaped frame 120 adopts a long rod connected by two sets of parallel short rods and vertical short rods. The sliding base 330 is fixedly connected to the long rod by bolts. The area between the short rods is the sliding area. The loading pipe 311 passes through the sliding area to reach the vicinity of the outer wall of the storage tank.

[0035] In a preferred embodiment of this invention, the roller assembly includes a left wheel 210, a right wheel 220, and a front guide wheel 230, which together with the left wheel 210 and the right wheel 220 form a three-point structure. The chassis 110 is provided with a traction rod 140 serving as a connection point for the traction rope 130, and the front guide wheel 230 is positioned near the traction rod 140. The front guide wheel 230, along with the left wheel 210 and the right wheel 220, utilizes existing magnetic wheels to ensure magnetic connection with the outer wall of the tank 400. It should be noted that this application is primarily for storage tanks made of ferrous materials that can be magnetically attracted.

[0036] In this embodiment, when the traction rope 130 is pulling, the front guide wheel 230 is arranged on the side close to the traction rod 140. The force on the front guide wheel 230 will be more concentrated, which can make the moving trolley 100 maintain a good straightness during movement. Although the upward process is due to the traction force, it does not affect the measurement needs. The measurement point does not need to maintain a straight upward movement during the measurement process, and the point itself needs to have a certain degree of randomness.

[0037] It should be noted that, for the sake of simplicity, the foregoing embodiments are all described as a series of actions. However, those skilled in the art should understand that the present invention is not limited to the described order of actions, as some steps may be performed in other orders or simultaneously according to the present invention. Furthermore, those skilled in the art should also understand that the embodiments described in the specification are preferred embodiments, and the actions and modules involved are not necessarily essential to the present invention.

[0038] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit the scope of protection of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on these embodiments, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model. Although this utility model has been described in detail with reference to the above embodiments, those skilled in the art can still combine, add, delete, or otherwise adjust the features of the various embodiments of this utility model according to the circumstances without conflict or creative effort, thereby obtaining different technical solutions that do not fundamentally depart from the concept of this utility model. These technical solutions are also within the scope of protection of this utility model.

Claims

1. A multi-point detection device for tank wall thickness, characterized in that, include: A mobile trolley (100) includes a chassis (110), a roller assembly for moving the outer wall of a storage tank, and a fixed pulley assembly (150) located on the top of the storage tank. The roller assembly is magnetically connected to the outer wall of the storage tank. A traction rope (130) provided on the chassis (110) passes around the fixed pulley assembly (150) and hangs down to the ground. The micro-adjustment structure (300) includes a loading component (310) for assembling the thickness gauge (500) and a traction structure for the traction loading component (310) to be located away from or near the outer wall of the storage tank.

2. The multi-point detection device for tank wall thickness as described in claim 1, characterized in that, The traction structure includes a sliding base (330), a push rod and a traction base rod (320) disposed inside the sliding base (330). The sliding base (330) is provided with a sliding cavity (301). The traction base rod (320) slides in the sliding cavity (301). The push rod is disposed in the sliding cavity (301). The traction base rod (320) moves away from or closer to the outer wall of the storage tank under the action of the push rod.

3. The multi-point detection device for tank wall thickness as described in claim 2, characterized in that, The roller assembly includes a left wheel (210), a right wheel (220), and a front wheel (230), wherein the front wheel (230), the left wheel (210), and the right wheel (220) form a three-point structure.

4. The multi-point detection device for tank wall thickness as described in claim 3, characterized in that, The chassis (110) is provided with a traction rod (140) as a connection point for the traction rope (130), and the front guide wheel (230) is arranged on the side close to the traction rod (140).

5. The multi-point detection device for tank wall thickness as described in claim 4, characterized in that, The loading component (310) includes a loading tube (311) and a cap (312) threadedly connected to the loading tube (311). The loading tube (311) has an open structure at both ends. The cap (312) is assembled on one side of the loading tube (311). A thickness gauge (500) for detection is inserted into the loading tube (311) from one end.

6. The multi-point detection device for tank wall thickness as described in claim 5, characterized in that, The loading tube (311) is fixedly connected to the traction base rod (320).

7. The multi-point detection device for tank wall thickness as described in claim 6, characterized in that, The chassis (110) is also provided with a T-shaped frame (120) for assembling the micro-adjustment structure (300). The T-shaped frame (120) has a sliding area in the middle, and the loading pipe (311) passes through the sliding area to reach the vicinity of the outer wall of the storage tank.

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