The invention discloses an automatic
monitoring system for purifying and reusing circulating cooling water, comprising a sampling device, an online instrument device, a monitoring device and a
drug-adding device. The sampling
submersible pump of the sampling device and the online instrument device is directly hung in the circulating water of the
pool. An outlet
pipe of the
submersible pump are divided into 3 paths and the 3 paths respectively enter a slime collector bypass, an online instrument monitoring bypass and a simulated
heat exchanger bypass. The monitoring device comprises a control cabinet and a management computer. The
drug-adding device comprises three parts, namely a
drug-adding pump, a drug-adding box and an
inverter. The drug-adding box is connected with the drug-adding pump; the drug-adding pump is connected with the control cabinet of the monitoring device and the management computer by the
inverter. The automatic
monitoring system realizes real-time monitoring of the
water quality of water in the circulating cooling water
system of the power
plant and can automatically control the addition dosage in order to purify the
water quality of the circulating cooling water to realize recycling. The automatic
monitoring system has good economic benefit after popularization.