What water quality parameters need to be monitored in cooling towers?

A cooling tower is a device used to reduce heat in industrial equipment, power plants, and other large building. They lower the temperature of the water by bringing it into contact with air. In a circulating water system, water is used to cool the heat generated in equipment or processes. The hot water first flows into the top of the cooling tower through pipes, and is then dispersed into a thin water film, which is evenly distributed through fillers or nozzles in the tower. At the same time, through the action of fans or blowers, the air in the cooling tower flows through the water film and takes away the heat. During this process, the temperature of the water is reduced and then recycled back to the equipment or process for use. So what water quality parameters need to be monitored in cooling towers?

1. pH value: refers to the acidity and alkalinity of water, which is very important for the operation and corrosion control of cooling towers. Daruifuno's ASP series analog pH sensors are encapsulated in a plastic shell to resist corrosion, high temperature, and have very fast response speed. They can respond in real time to the pH value of water quality.

2. Suspended solids: refers to suspended particles in the water. Excessive suspended solids will affect the heat transfer efficiency of the cooling tower. For different ranges of suspended solids, the MLSS3 series digital suspended solids sensors are equipped with automatic cleaning scrapers, which can realize underwater self-cleaning functions. Currently we provide suspended solids sensors with different ranges of 0~3000mg/L, 0~20g/L, 0~45g/L, and 0~120g/L.

3. Dissolved oxygen: It is an important factor in the growth of microorganisms in cooling towers. Excessive dissolved oxygen can cause corrosion problems. It is very necessary to use online dissolved oxygen sensors to continuously monitor the dissolved oxygen value of water quality. The OPD790 series Dissolved Oxygen Sensor uses optical fluorescence method, which dose not require reagent consumption and makes measurement accurate and fast.

4. Total hardness: Hard water contains high concentrations of calcium and magnesium, which can cause scaling and corrosion problems.

5. Total alkalinity: It is the total amount of alkaline substances in the water, which has an important impact on the corrosion control and scale formation of the cooling tower.

6. Chlorine content: chlorine is a commonly used disinfectant, but high concentrations of chlorine can have a negative impact on the cooling tower's metal components and microbial growth. Use residual chlorine sensors to monitor the chlorine content of water quality, and we also provide matching residual chlorine online controllers.

7. Total number of microorganisms: microorganisms in the cooling tower can lead to the formation of biocorrosion and biofouling, and the total number of microorganisms needs to be monitored.

8. Organic matter content: It is the nutrient solution for microbial growth. High concentrations of organic matter can cause excessive growth of microorganisms.

Monitoring these water quality parameters can help the cooling tower operate properly and prevent problems such as corrosion, scales and microbial contamination. Daruifuno focuses on the R&D and production of water quality analysis instruments. Its main products include pH ORP analyzer, conductivity analyzer, turbidity analyzer, COD analyzer, dissolved oxygen analyzer, ammonium analyzer, chlorine analyzer, etc. If you would like water quality analysis instruments for use in cooling towers, please contact us.