电化学技术在火电厂循环水系统中的应用研究

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中图分类号：U455.6 文献标志码：A 文章编号：2095-2945（2025）24-0169-05

Abstract：Inthispaper，thecirculatingcoling watersystemofthermalpowerplantsistakenastheresearchobject，and thetreatmentefectandoperatingcostofelectrochemicaldevicesinthecirculatingcolingwatersystemarestudiedundertwo workingcondions：theconcentrationratioofthecirculatingcoolingwatersystemisconstantandtheconcentrationratiois increased.Theresearchresultsshowthatwhentheconcentrationratioof thecirculatingcoling watersystemis4times，thetotal hardnes，calciumhardness，totalalkalinity，andturbidityofthecirculatingcolingwatersystemusingelectrochemicaldevicesare significantlylowerthanthatofthecireulatingcolingwatersystemtreatedonlybytradionalchemicalmethods.Thedosageof anti-scale agent can be reduced by 50% ，and the energy consumption per ton of water is 0.029kW⋅h ；the concentration ratio of thecirculatingcoolingwatersystemusingelectrochemicaldevicescanbeincreasedfrom4timesto6times.Thewaterqualityof the circulating water system canmeet the operating requirements，the dosage of scale inhibitor can be reduced by 30% ，and the energy consumption per ton of water is 0.020kW⋅h ：

Keywords： circulating cooling water; descaling; electrochemistry; thermal powerplant; concentration ratio

循环冷却水系统是火电厂的用水大户，其水量一般占全厂用水量的 80% 以上[-2]，很多电厂受制于补水水质、循环冷却水系统浓缩倍率较低，导致循环排污水水量较大，循环排污无法在厂内全部消纳，致使部分排污水外排，存在较大的环保风险。（剩余5451字）