Defect detection device for inner wall defects of sulfur-resistant hydrogen-resistant elbow pipe fitting

Abstract

The invention discloses a defect detection device for inner wall defects of a sulfur-resistant hydrogen-resistant elbow pipe fitting. The defect detection device comprises a traveling device, a fluorescent magnetic powder spraying device, an infrared photographing device, a receiving execution device and a remote-sensing controller, the traveling device is a carrier traveling on the inner wall of the pipe fitting and comprises a supporting barrel fixedly arranged in the middle, fixing cylinders are fixedly arranged at the left end and the right end of the supporting barrel respectively, four connecting arms are arranged, two of the connecting arms are symmetrically arranged on the front and rear sides of a left fixing convex column while the other two connecting arms are symmetrically and fixedly arranged on the front and rear sides of the right fixing convex column, and each connecting arm is provided with connecting adjustment holes uniformly at equal intervals. By the defect detection device, stability and reliability in inner wall defect detection of the pipe fitting are improved greatly, quality control in the process of manufacturing the pipe fitting is improved, and product quality of the pipe fitting is improved.

Description

technical field [0001] The invention belongs to the technical field of flaw detection and detection of inner wall defects of sulfur and hydrogen resistant elbow pipe fittings, and in particular relates to a flaw detection device for inner wall defects of sulfur and hydrogen resistant elbow pipe fittings. Background technique [0002] Defects may occur in the manufacturing process of elbow pipe fittings. According to actual production experience, it is proved that the flaw detection of the inner wall of elbow pipe fittings can effectively control the production quality of elbow pipe fittings and effectively implement the quality standards of elbow pipe fittings. The flaw detection of elbow pipe fitting defects can accurately grasp the product quality of sulfur-resistant and hydrogen-resistant elbow pipe fittings. At the same time, inspection can reduce the maintenance cost of elbow pipe fittings. Inspection is an effective method. Carrying out internal inspection, accurately ...

AI Technical Summary

Problems solved by technology

According to the technology used in flaw detection, it can be divided into ray flaw detection method, penetrant flaw detection method, ultrasonic flaw detection method, magnetic particle detection method, etc.; The ubiquitous problem is that the flaw detection method for the defects of elbow pipe fittings is single, and the reliability of flaw detection detection is not high; especially for the detection of the inner wall of elbow pipe fittings, due to the limitation of the actual working environment, there has always been a problem of low reliability of flaw detection detection. Problem; Among them, anti-sulfur and anti-hydrogen elbow pipe fittings are mainly used in the fields of underground natural gas and oil exploration and processing. Underground natural gas and oil are mixed with a large amount of hydrogen sulfide elements, and hydrogen sulfide has strong corrosion performance on metal elbow pipe fittings. The patent can ensure the safe use of the hydrogen and sulfur resistance of the elbow fittings in the hydrogen sulfide environment

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