Raw water pretreatment water is purified and treated by various methods and used to replenish the water lost in the water and steam circulation system of power plants. Common water treatment equipment include media filters, reverse osmosis equipment, ultrafiltration equipment, EDI equipment, sodium ion exchange water softening equipment, ion exchange desalination equipment, thermal deaeration equipment, etc. According to the water quality of the raw water and the water quality requirements of the terminal water to determine, can be combined into different treatment processes, the final produced water can achieve conductivity ≤ 0.2μs/cm, hardness ≈ 0, SiO2 ≤ 20μg / L, or even require higher water quality.

Typical process introduction.

Process flow of demineralized water system

* Raw water tank → raw water pump → multi-media filter → scale inhibitor dosing device → security filter → primary high pressure pump → primary reverse osmosis desalination device → primary RO water tank → secondary high pressure pump → secondary reverse osmosis desalination device → secondary RO water tank → EDI pressurization pump → EDI desalination system → desalination water tank → desalination water pump → boiler produced water (water point)