Pipeline CCTV detection technology Pipeline closed-circuit television detection system (CCTV) appeared in the 1950s. It is a tool specially used for underground pipeline detection. It is the longest-used detection technology for drainage pipe network detection and is currently the most widely used method. . During the detection, the operator remotely controls the crawler on the ground, controls it to record and shoot in the pipeline, uses closed-circuit television to collect images, and performs intuitive image display and recording through wired transmission. These recorded images are used to evaluate and analyze the internal conditions of the pipeline. This detection technology is easy to operate, image recording, accurate and intuitive judgment, and avoids personal injury accidents that may occur when people enter the pipeline. However, the water level in the pipeline needs to be temporarily lowered before the detection, and the inner wall of the pipeline needs to be pre-cleaned if necessary. Pipeline CCTV detection technology has been widely used in the detection of drainage pipe network at home and abroad.
2. Pipeline sonar detection technology Pipeline sonar detection uses sound wave reflection technology to scan the inside of the pipeline with sonar, detect and locate objects in the water, provide accurate quantitative data, and detect and identify pipeline damage. Sonar has the advantages of high sensitivity, strong penetrating power, flexible flaw detection, high efficiency, and low cost. It can provide accurate data and can be combined with CCTV and various environmental sensors to conduct a comprehensive inspection of the pipeline structure.
3. Pipeline periscope detection technology Pipeline periscope is a portable visual pipeline rapid detection equipment. The camera can be put into the inspection well or pipeline through the adjustable length camera lever, and clear video or images can be obtained by adjusting the lighting and camera. The operator can directly browse the images through the display screen equipped with him, and record and judge the cracks and blockages in the pipeline in real time. It is suitable for detection of inspection wells and pipelines (diameter 150-2000mm) near inspection wells. This detection technique is easy to operate, portable, and intuitive in data, and has been widely used.
