Device for laser positioning method for realizing storage tank bottom plate detection

Abstract

The technical scheme of the invention discloses a device for a laser positioning method for realizing storage tank bottom plate detection. The device comprises a telescopic rod formed by connecting multiple supporting rods in a sleeving manner, wherein a laser emission device is arranged on each supporting rod; a power supply is arranged at one end of the telescopic rod; and the laser emission devices are all connected with the power supply. According to the device, laser beams emitted by the laser emission devices replace artificially drawn auxiliary straight lines, and the distance between the laser beams is controlled by utilizing retraction of the telescopic rod; and the device can shrink to a smaller length, is convenient to be carried by detection personnel and is easy to operate anduse, the emitted laser beams can be clearly seen in a dark environment, and the missing inspection probability can be effectively decreased by an auxiliary detecting instrument.

Description

technical field [0001] The invention relates to the field of pressure-bearing special equipment detection, in particular to a device for realizing a laser positioning method for detection of a bottom plate of a storage tank. Background technique [0002] As an advanced non-destructive testing method, magnetic flux leakage and low-frequency electromagnetic testing are used to detect volumetric defects such as corrosion on the bottom plate and lower surface of storage tanks. It is widely used in the pressure storage tank detection industry. In the corrosion detection of the bottom plate of the atmospheric pressure storage tank, usually a storage tank bottom plate needs to be 100% inspected. The bottom plate of the atmospheric pressure storage tank is spliced ​​by several plates. Width: 1800mm-3500mm, length: 2000-10000mm, and the scan width of a magnetic flux leakage test is 250mm, and the scan width of a low-frequency electromagnetic test is 350mm, and multiple scans are req...

AI Technical Summary

Problems solved by technology

[0003] However, the working environment in the storage tank is relatively harsh and the light is dark. During the detection process, the detection instrument is required to walk in a straight line. It is necessary to draw auxiliary straight lines on the bottom plate of the storage tank to help the detection instrument to move straight. However, manual drawing of auxiliary lines not only works The large volume and dark and harsh working environment make it difficult to see the auxiliary lines drawn clearly, resulting in low efficiency and high requirements for testing personnel. If you do not pay attention to the testing equipment, it is easy to go astray, resulting in missed testing.

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