Feed water, condensate, plus automatic dosing device principle ammonia process water free C02, can make water acidic, can make steel and other metals occur hydrogen depolarized corrosion, damage ferrous member. Especially at higher temperatures and do not have the buffer of chemical water desalination, will greatly facilitate the free C02 steel corrosion, it is necessary to suppress this electrochemical reaction. Add nitrogen to the water to improve water PH value, can be effectively suppressed date + dissociation Further control metal corrosion. Feed water, condensate, add ammonia automatic dosing device Process Overview This device includes five parts liquid metering systems, dissolved distribution system, metering dosing systems, security systems and control systems. Nitrogen water sucked from the water meter in the ejector system of automatic dosing unit design, then, to add solvent system and in addition mixed with salt water or condensate from the metering dosing system investment and added to the boiler feed water or condensate. Dosing control can be manually can also be a control signal based on the output of the host system. Conduct follow-up control, automatic dosing. Feed water, condensate, add ammonia automatic switching device is suitable in the range of drug pressure and boiler condensate above parameters, to treatment. Automatic dosing device equipment selection: central air conditioning cooling water circulation system as long as dosing the two agents can be resolved scale, corrosion and fungus and algae problem with the system exist. That one is the corrosion inhibitors, one is biocide, for the use of coarse and fine dirt filter to solve. Central air conditioning cooling equipment selection and calculation method of circulating water system: according to the central air conditioning cooling water circulation system circulating water is 1000 tons / hour, fill water according to consider 2-3%, the system is N hours a day, every day of the system fill water about 30N, some central air conditioning cooling water circulation system according to 30% of circulating water system to calculate the retained water, corrosion and scale inhibitor generally in accordance maintain water systems to calculate the dosage, the general agent 50g / ton of water is automatically incremented dosing devices, fungicides drug dosing is 100g / ton of water (determined based on the drug concentration and formulation), weekly or daily dosing cycle dosing Automatic dosing unit dosing system, or manually according to the water quality or the whole system Automatic dosing. Central air conditioning hot and cold water circulation system based on central air conditioning hot and cold water circulation system circulating water is 1000 tons / hour, because it is a closed system, fill water 1% of consideration, the system is N hours a day automatic dosing device Which is good, then the system fill water per day is about 10N, some central air conditioning hot and cold water circulation system according to 30% of circulating water system to calculate the retained water, corrosion and scale inhibitor generally in accordance maintain water systems to calculate dosing, general 50g Pharmacy / ton of water, fungicide dosage is 15 pharmaceutical / ton of water (determined based on the drug concentration and formulation), weekly or daily dosing cycle dosing, or manual systems based on water quality or fully automatic dosing. Circulating water automatic dosing device, rich students (certification), Huaihua automatic dosing device provided by the Environmental Protection Engineering Co., Ltd. Guangzhou Fu students. Environmental Protection Engineering Co., Ltd. Guangzhou Fu students (www.fushengyuan.com) is a leader in Guangzhou, environmental monitoring equipment, over the years, the company is implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer needs. Fu students in leadership with the staff warmly welcome all inquiries negotiations to create a better future for rich students.