Ray digital imaging detection system for pressure equipment girth welds

Abstract

The invention provides a ray digital imaging detection system for pressure equipment girth welds. The system comprises a pressure equipment automatic scanning device which is arranged on the outside of pressure equipment for axially rotating around the pressure equipment, a ray emitting device which is fixed on the pressure equipment automatic scanning device for emitting rays to penetrate the girth welds, and a ray receiving and image processing device which is fixed on the pressure equipment automatic scanning device and is arranged opposite to the ray emitting device for receiving the emitted rays, converting optical signals of the rays into digital signals to generate girth weld detection images and processing the images to generate a processing result. The system can realize the digital imaging detection for the pressure equipment girth welds of different diameters by changing the diameter of the pressure equipment automatic scanning device, not only can greatly reduce the detection cost and shorten the development period of products, but also can quickly identify the defects.

Description

technical field [0001] The present invention relates to the technical field of radiographic detection and imaging, in particular to the field of non-destructive testing of pressure equipment, in particular to a radiographic digital imaging detection system for girth welds of pressure equipment, which can be widely used in girth welds of pressure equipment Non-destructive testing and non-destructive evaluation. Background technique [0002] Pressure equipment includes boilers, pressure vessels, pressure piping and other equipment. Boilers are composed of power station boilers and industrial boilers. Power station boilers are the "heart" of thermal power generation. Industrial boilers mainly provide heat energy for industrial (petroleum, chemical, fertilizer, metallurgy, papermaking, etc.) processes, and provide heating and heating for public and civil buildings. hot water. Therefore, the development of boiler equipment will directly affect the development of national econom...

AI Technical Summary

Problems solved by technology

Film photography has the following disadvantages: 1. The detection process is complicated, and the detection time needs at least 20 to 30 minutes; 2. It is difficult to save and manage the film, and the waste liquid has environmental pollution; 3. It is impossible to realize batch detection and automatic interpretation of defects

Disadvantages of industrial TV: 1. There is edge distortion; 2. It is greatly fluctuated by the influence of ambient temperature and magnetic field; 3. The angle of collecting light is small, resulting in the loss of information; 4. The imaging quality cannot be compared with film photography

With the development of various rapid manufacturing technologies, the above detection methods are difficult to meet the needs of the actual manufacturing process and inspection market, which has restricted the development of special equipment manufacturing industry to a certain extent.

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