CCTV detection, is a new type of application engineering technology, which uses industrial piping endoscopic camera systems, continuous, real-time recording of the actual situation inside the pipe; art imaging system based on video data captured on the internal problems of the pipeline for field position OK, determine the nature of the defect, with a real-time, intuitive, accurate and certain forward-looking, active in the prevention of environmental protection, control technology to take targeted measures for the sewer maintenance, excluding rain, water stagnation and Prevention pipeline leak pollution, provide a reliable technical basis. The main advantage of high-pressure water jet cleaning: 1, low cleaning costs: first medium pressure water jet using tap water, it is easy to source widespread. In the cleaning process, due to the powerful energy without adding any fillers and detergents, can be cleaned, it is low cost. Secondly, saving water and energy, water and fire such different cleaning methods, is a fine jet spray nozzle with a diameter of only 0.5 to 2.5 mm, so the water consumption of only 3-5 cubic meters / hour, the use of the power of the power of 37-90 kilowatts, it belongs to water and energy saving devices. 2, good quality cleaning: cleaning pipes and the hole heat exchanger fouling materials and can clog the tube removed all clean, you can see the metal body. Has tremendous energy and high pressure water jet to supersonic motion is completely capable of destroying hard Filthes and obstruction, but the metal does not have any damaging effects. The same time, due to high pressure or water pressure is less than the compressive strength of a metal reinforced concrete, so the tubing does not have any damaging effects. Achieve high-quality cleaning. 3, the cleaning speed: As the water jets (foreign countries, said water bombs) erosion, deed split, cut, grinding and other composite crushing effect, may immediately Filthes broken off. Than traditional chemical methods, sand blasting method, a simple mechanical and manual methods of cleaning speed several times to times