X-ray detection robot for weld seam of storage tank

Abstract

The invention relates to an X-ray detection robot for the weld seam of a storage tank, belonging to the field of nondestructive detection. The robot comprises a framework type symmetrical device, a connection device, an X-ray generator bogie and an imaging bogie, wherein the framework type symmetrical device consists of two symmetrical stand frames, each stand frame comprises a plurality of stand frame modules with racks and can be assembled according to the wall height of the detected tank, the connection device is connected with the two symmetrical stand frames and is provided with a driving device, the X-ray generator bogie and the imaging bogie are respectively connected with the two stand frames, gears of the X-ray generator bogie and the imaging bogie are meshed with the racks of the stand frame modules, and are matched with the stand frame modules through guide sliders. The robot can complete automatic detection on the longitudinal weld seam and annular weld seam instead of manual labor, and wirelessly transmit the detection result to a ground host, and provide a safe, simple and convenient detection mode, and the detection efficiency and detection quality can be greatly improved.

Description

Technical field [0001] The invention relates to a non-destructive testing device and method, in particular to an X-ray testing robot for the weld of a storage tank. Background technique [0002] The quality of large storage tanks, such as those used to store petroleum, involves serious personal and property safety. Therefore, the quality control of the manufacturing process is very strict, and the country has strict standards to restrict the quality of its welds. At present, X-ray flaw detection is widely used for tank weld inspection. Generally, the X-ray flaw detector is hung on the tank wall through a simple hanging cage and moved by manpower to manually patch and perform photographic flaw detection. However, due to the large diameter of the storage tank, which can reach more than 80 meters, the height can reach more than 30 meters, the length of each film is 300mm, and the circumference of the large storage tank is several hundred meters, the workload of mounting and evaluati...

AI Technical Summary

Problems solved by technology

However, due to the large diameter of the storage tank, which can reach more than 80 meters, the height can reach more than 30 meters, the length of each film is 300mm, and the circumference of a large storage tank is several hundred meters, the workload of patching and film evaluation is very huge. It is very inefficient to manually mark and push the imaging plate every time a shot is taken, and it is harmful to the human body to be exposed to X-rays for a long time, so the operators not only have a huge workload, but also their health will be threatened

In addition, this old-fashioned X-ray film method needs to consume a large amount of film, the detection cycle is long, and because of the cumbersome process of mounting and developing films, the real-time performance is also poor.

In addition, the operator needs to work at high altitude, which is inconvenient to operate, which not only poses danger to the operator but also affects the quality of inspection

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