In 2016, a set of 400g / h sodium chloride hypochlorite disinfection equipment was installed in the Yanziwan Waterworks of Mingguang City. Due to the previous use of chemical method chlorine dioxide disinfection equipment, water plant employees have always been in conflict, resulting in many problems. Passed, and the equipment surface and floor have severe corrosion. The Yongguan electrolytic disinfection equipment produces low-concentration sodium hypochlorite disinfection solution, which has no corrosion to the surroundings and no harm to the human body. After using Yongguan's new electrolytic salt sodium hypochlorite disinfection equipment, the water supply plant will save 50,000 to 60,000 yuan in disinfection costs each year.