Application of high-pressure cleaning machine in descaling of evaporation tank

　　The machine is used in Henan Wusih Sugar Factory. The cleaned No. 5 evaporation tank has a total heat exchange area of 550 square meters, a total of 1854 brass tubes, each 3 meters long, outer diameter of tube is 42 mm, inner diameter is 38 mm, and inner area of the tube is 42 mm. The average thickness of scale is 25 mm, and maximum thickness is 317 mm. The scale is thick and hard, and the average cleaning speed is 368 m/min; the No. 4 tank cleaned has a total heat exchange area of 800 square meters, and a total of 2,874 brass tubes, each 3 meters long, and inner and outer diameters of tubes are respectively , thickness of the fouling is 38 mm and 42 mm, fouling thickness is below 08 mm, fouling is thinner and easier to clean, more than 80% of fouling removed is powder, and cleaning speed is 12 m/min on average. In addition, other equipment was cleaned with good results. Tube after high pressure water cleaning. The inner wall is like new one, there is no residue or damage to the tube wall.

　　Compared with the traditional method, high-pressure water jet descaling process has the advantages of thorough and clean descaling, low energy consumption and less equipment investment. It can be used not only for cleaning of pipes and equipment of heat exchange equipment, but also for other equipment and large-volume cleaning, and the practice has proved that the effect is good.