Negative-Pressure Chemical Chlorine Generator |On-Site Chlorine Production Unit | Chemical Disinfection Equipment

Working Principle The unit uses a chemical reaction process. Raw materials are fed into the reactor by metering pumps in the right proportions, where they mix and react under negative pressure to form chlorine dioxide gas. The gas mixture is then drawn in by a water ejector and dissolved in water to form chlorine dioxide solution, which is dosed directly into the water being treated. The whole process runs under negative pressure, giving a high conversion rate. It's made on site and used right away, so there's no need to store hazardous chemicals. Application Fields 1.Water treatment plants: disinfection of treated water and distribution network water, keeping bacteria and virus levels in check. 2.Hospital wastewater stations: disinfection of bacteria-laden sewage to meet discharge requirements. 3.Pools and water parks: circulating water disinfection, controlling algae growth and keeping water clear. 4.Industrial circulating cooling water: bacteria and algae control in power, chemical, and metallurgy systems, preventing biofouling. FAQ Q1: What raw materials does a Negative-Pressure Chemical Chlorine Generator use? A: There are two common processes. One uses sodium chlorate plus hydrochloric acid, the other uses sodium chlorite plus hydrochloric acid. Sodium chlorate needs a purity of 99% or higher, and the hydrochloric acid is around 31% concentration. The raw materials must be stored separately and never mixed together. Metering pumps dose them in the right proportions during operation. These materials are hazardous chemicals, so storage and handling need to follow proper procedures. The advantage of on-site generation is that you don't have to store finished chlorine dioxide. Q2: What's the difference between a Negative-Pressure Chemical Chlorine Generator and a sodium hypochlorite generator? A: Both produce disinfectant on site, but the principle and the end product are different. A sodium hypochlorite generator electrolyzes salt water to produce sodium hypochlorite. A Negative-Pressure Chemical Chlorine Generator uses a chemical reaction to produce chlorine dioxide. Chlorine dioxide is a stronger disinfectant, is less affected by pH, and doesn't form byproducts like trihalomethanes, making it a good fit for situations with high water quality requirements. Sodium hypochlorite generators use simpler raw materials—just salt, water, and electricity—so they cost less to run and are easier to operate. Q3: What should be watched during operation of a Negative-Pressure Chemical Chlorine Generator? A: First, make sure the raw materials are good quality and the proportions are accurate—wrong ratios affect conversion rate and gas output. Second, check the water ejector's working water pressure. If it's too low, the chlorine dioxide gas won't get drawn in properly. Also clean the reactor and piping regularly to prevent crystallization and blockages. The equipment room needs good ventilation to prevent gas leaks. The temperature control system should be working properly—if it runs too hot, it affects reaction efficiency and safety.