Online surveying and mapping detection device and method for storage tank body

Abstract

The invention provides an on-line surveying and mapping detection device for a storage tank body, which comprises a tripod, a horizontal adjusting and rotating base, a control circuit mechanism, a tower cap mechanism, a swing arm, a balance weight mechanism, a scanning detection mechanism, a leveling cable and a balance weight cable; the horizontal adjusting and rotating base is arranged at the upper end of the tripod, and the control circuit mechanism is arranged at the upper end of the horizontal adjusting and rotating base. A tower cap mechanism is arranged at the upper end of the control circuit mechanism, a swing arm is arranged at one side end of the control circuit mechanism, a scanning detection mechanism is arranged at the tail end of the swing arm, a balance weight mechanism is arranged at the other side end of the control circuit mechanism, a leveling cable is pulled between the upper end of the tower cap mechanism and the swing arm, and a balance weight cable is pulled between the upper end of the tower cap mechanism and the balance weight mechanism. The control circuit mechanism is in communication connection with the scanning detection mechanism; the method adopting the device comprises the steps of S1) assembling, S2) debugging and S3) scanning detection, and the method and device have the advantages that through high-precision modeling of the three-dimensional scanning technology, deformation detection of the tank body of the storage tank is more intuitive, visual and high in precision.

Description

technical field [0001] The invention relates to the technical field of surveying and mapping, in particular to an online surveying and mapping detection device and method for a storage tank body. Background technique [0002] With the rapid development of my country's petrochemical construction, the number of vertical storage tanks has increased dramatically. Since the storage tank is a typical thin-walled structure model, the stability is low, and it is easy to cause bubbling or concave deformation of the storage tank body due to factors such as lax quality control during the manufacturing process or failures during operation and use, improper operation, etc. . The deformation phenomenon of the storage tank will bring two effects: (1) The overall or local excessive deformation will reduce the anti-stabilization ability of the storage tank, thereby reducing the safety production reliability during the operation and use of the storage tank; (2) the tank The deformation of t...

AI Technical Summary

Problems solved by technology

The advantage of the total station photoelectric method is that the single-point measurement accuracy is high, and it is easy to use on-site measurement. However, due to the large interval and small number of sampling points, this method is more suitable for the overall deformation measurement of the storage tank, and the local deformation measurement capability needs to be improved. In addition, when conducting on-site measurement, it is necessary to open the tank to detect the shutdown of the storage tank, and it is impossible to measure the deformation data of the storage tank when the tank is full, so that it is impossible to obtain the most practical deformation data of the storage tank when the tank is full. Increased business operating costs

The artificial method is especially suitable for the local deformation measurement of storage tanks, such as the deformation measurement of the roof of the vaulted tank, but it is not easy to describe the overall deformation of the vertical storage tank

In addition, with the gradual application of laser scanning 3D modeling technology in storage tank surveying and mapping, a small number of inspection units have used this technology to inspect horizontal storage tanks and small-volume storage tanks, but there are still tank inspections that need to be opened, multiple Disadvantages of station measurement, many influencing factors, and limited measurement accuracy

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