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随着城市建设的发展,人民生活水平的提高对饮用水水质提出了更高的要求。同时,为保证供水管网水质,国家建设部、化学工业部、中国轻工业总会、围家建材局、中国石化总公司联合发文给水管网严禁使用镀锌钢管,淘汰灰铸铁管的规定。我司通过调查分析供水水质,结合管网的实际情况,灰铸铁,特别是镀锌钢管已是影响供水水质水质的主要原因之一,同时因灰铸铁、镀锌钢管壁结垢使管网输水能力减小,增加了输水阻力,严重威胁输水的安全可靠性。
With the development of urban construction, the improvement of people’s living standards has put forward higher requirements for drinking water quality. At the same time, in order to ensure the water quality of the water supply network, the Ministry of Construction, the Ministry of Chemical Industry, the China National Light Industry Association, the Weijia Building Materials Bureau, and China National Petrochemical Corporation jointly issued regulations to prohibit the use of galvanized steel pipes and eliminate gray cast iron pipes. Our investigation and analysis of water quality through the survey, combined with the actual situation of the pipe network, gray cast iron, especially galvanized steel pipe is one of the main reasons affecting water quality and quality of water, at the same time due to gray cast iron, galvanized steel pipe wall fouling so that pipe network transmission The reduction in water capacity increases the resistance to water transport and seriously threatens the safety and reliability of water transport.