A device and method for detecting the quality of a composite pipeline lining ceramic layer

Abstract

The invention discloses a device and method for detecting the quality of a compound pipeline ceramic-lined layer. The device comprises an infrared detection probe, a flash lamp, a reflective mirror, a heating source, an outer shell and a rotating machine. Infrared thermal imaging detection operation of all ceramic-lined layers of a detected compound pipeline is completed by heating each detected ceramic layer by means of the heating source, reflecting thermal images of the detected ceramic layers to a detection surface of the infrared detection probe by means of the reflective mirror and then performing stepping rotary movement detection, thereby solving the problem that lined layers of a small-diameter compound pipe can not be effectively detected due to the small diameter of the compound pipe and the large volume of the infrared detection probe.

Description

technical field [0001] The invention relates to the technical field of non-destructive testing, in particular to a device and method for testing the quality of a composite pipeline lining ceramic layer. Background technique [0002] Due to its unique characteristics, composite material pipes are widely used in many industries and fields, mainly in water supply, drainage, heat supply, gas supply, long-distance transportation of oil and natural gas, agricultural irrigation, hydraulic engineering and various industrial devices , is considered to be the safest and most economical way to transmit energy. However, like all engineering equipment, pipelines may also fail. In recent years, pipeline accidents have occurred frequently, causing serious casualties and economic losses. focus on. In order to solve the problem of safe application of pipelines, people have researched and developed many pipeline detection methods and technologies for a long time, and can detect various defec...

AI Technical Summary

Problems solved by technology

However, for small-diameter pipes, especially for the detection of remanufactured old pipe mothers and lining ceramic layers, conventional methods are not effective, because the base metal has defects (such as corrosion thinning) and rough inner surfaces, and the existing processing technology does not The quality of the ceramic layer and the good adhesion of the base material cannot be guaranteed, and it is easy to cause the surface of the ceramic layer lining the pipeline to be uneven, lack porcelain or protrude, resulting in the quality defect of the pipeline affecting the application safety of the pipeline, and at the same time due to small The diameter of the composite pipe is relatively small, and the relative volume of conventional ultrasonic, ray, infrared and other detection devices is too large to effectively detect the inner lining of the small-diameter composite pipe.

Images