What are the functions and requirements of circulating water dosing system?

The circulating water dosing system can not only avoid supersaturation, reduce alkalinity and pH value, but also reduce the cost of water treatment. In addition, it is required that the distance between the dosing inlet and the sampling port should be 10-15m. Next, let's introduce the details.

1、 Function of circulating water dosing system

1. In circulating water treatment, the automatic dosing device of scale inhibitor can significantly limit the concentration of deposited ions, avoid supersaturation, reduce alkalinity and pH value.

2. Corrosion inhibitor is a water treatment agent that can slow down metal rot insects. In fact, a small amount of corrosion inhibitor can play a very good water treatment effect. Therefore, the dosage can be controlled through the automatic dosing device, which can not only meet the needs of corrosion inhibition treatment of water treatment, but also reduce the cost of water treatment.

3. At present, due to the increase of circulating times of circulating water, a large number of salt loving and acid loving bacteria will be produced in the water, which will corrode the pipeline and affect the normal operation of circulating water treatment system. Therefore, oxidants need to be used to eliminate various bacteria in the water. At this time, the oxidizing disinfectant added by the automatic dosing device can easily eliminate harmful bacteria in the water and realize the influence of sterilization and algae removal.

2、 Requirements for circulating water dosing system

1. The nozzle of the dosing pipe shall reverse the flow direction and be inserted into the center line of the medium pipe. The dosing pipe is 10-15mm stainless steel pipe, and about 10 2mm small holes are evenly opened around the pipe end accessories.

2. The sample tube is countercurrent inserted into the medium tube through 3 / 4, and several small holes with a diameter of 3mm are drilled in 1 / 3-2 / 3 of the end of the sample tube to increase the representativeness of sampling.

3. The distance between the dosing inlet and the sampling port should be 10-15m.

4. The length of the sample water pipeline between the sampling point and the electrode of the pH meter should be greater than 20m. Since most power plant pipelines have been finalized and it is inconvenient to change, this situation has been fully considered in the program design scheme of the controller.

5. The control cabinet shall be clean, bright and free of corrosive gas, away from strong magnetic field, with temperature less than 45 ° C and humidity less than 85%.

6. The drug dissolving box shall be installed so that the drug outlet is higher than the drug inlet of the dosing pump.

The above is an introduction to "what are the functions and requirements of the circulating water dosing system", hoping to help you.