Circulating cooling water system: The circulating water system in a steel plant refers to the cooling water formed by circulating various solutes in the cooling water through the cooling tower or cooler in the hydraulic turbine.

Cooling water system: There are two main forms of circulating water system in steel plants, namely natural cooling and mechanical cooling.

3. Circulating water quality: The circulating cooling water quality in steel plants refers to the difference in the quality of industrial water and cooling water. It mainly includes two categories: industrial water and cooling water. It is one of the important factors that affect industrial production efficiency and product quality.

Process characteristics

In the circulating water system of steel plants, in order to improve cooling efficiency, double tube heat exchangers are generally used, which can simultaneously supply and return water to two condensers. Double tube heat exchanger refers to a heat exchanger composed of two heat exchange tubes, which are connected in parallel and controlled by a common valve. The dual tube heat exchanger has two characteristics: first, its flow rate is unidirectional, that is, it can only flow from one pipe to another pipe; Secondly, valves must be installed at the inlet and outlet of the dual tube heat exchanger to control the direction of water flow.

2. The circulating water system in steel plants generally uses water treatment technology for treatment, so water treatment technology must be used in the production process of steel plants. In recent years, water treatment technology has developed rapidly, with various advanced technologies emerging continuously, becoming an indispensable component of the circulating water system in steel plants.

The cooling water system in steel plants generally adopts natural cooling, mechanical cooling, and cooling through coolers (water towers). The quality of the cooling water in the circulating water system is determined by the system's design parameters (make-up water quantity, make-up water quality requirements). The specific process flow is as follows:

major equipment

2. Sewage equipment: In steel plants, sewage pumps are generally used to discharge cooling water from the system, thereby achieving the purpose of preventing corrosion.

3. Dosing equipment: In steel plants, automatic dosing devices are generally used to control circulating cooling water. In steel plants, corrosion and scale inhibitors, fungicides, and scale inhibitors are commonly used for automatic control.

5. Filtration equipment: In steel plants, filtration devices are generally used to treat circulating cooling water to prevent the formation of dirt, thereby affecting the normal use of cooling water.

technical parameter

Water supply treatment mainly refers to the production water used in steel plants. The water supply treatment method commonly used in steel plants is the reverse osmosis+ion exchange+disinfection process. Among these three processes, the technical parameters of the reverse osmosis equipment are relatively high.

In natural cooling, steel plants generally use evaporation crystallization for concentration, which removes impurities from water to meet drinking water standards. In mechanical cooling, steel plants generally use water circulating cooling towers or through cooling towers. In practical applications, when steel plants treat cooling water, they will select corresponding technical parameters to treat water quality according to different conditions of the system, thereby achieving the goal of saving water resources and energy.

Usage effect

When using soft water equipment in steel plants, it is necessary to conduct water quality testing to ensure the normal operation of the soft water equipment. The use of industrial wastewater treatment equipment can effectively reduce the hardness of tap water, remove various impurities in the water, and make the water quality meet the national sanitary standards for drinking water. It can not only improve production efficiency, but also ensure product quality.