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建筑中水处理必须设有消毒设施,通常采用次氯酸钠溶液作为消毒剂,并用氧化电位(ORP)值自动控制次氯酸钠溶液投加量。自动控制方式有2种,即开关控制(ON-OFF CONTROL)和比例控制(PROPORTIONAL CONTROL)方式。 开关控制方式是根据ORP探头测得的值,通过ORP控制器控制加药计量泵的开停。当测定值小于设定值时,计量泵开;测定值大于设定值时,计量泵停。这是最简单的控制方式,价格较低。开关控制方式要求
Water treatment in buildings must be equipped with disinfection facilities. Usually, sodium hypochlorite solution is used as a disinfectant, and the amount of sodium hypochlorite solution is automatically controlled by the oxidation potential (ORP) value. There are two kinds of automatic control methods, namely ON-OFF CONTROL and PROPORTIONAL CONTROL. The switch control method is based on the value measured by the ORP probe, and the ORP controller controls the start and stop of the dosing metering pump. When the measured value is less than the set value, the metering pump opens; when the measured value is greater than the set value, the metering pump stops. This is the simplest way to control and the price is lower. Switch control method requirements