饮用水供水设施防冻抗冻模式研究与应用

Research and Application of Anti-Freezing Mode for Drinking Water Supply Facilities

受气候等因素影响,饮用水供水设施“冻管”问题是影响冬季供水、制约城市运行管理的一大难题。文中调研分析了保温绝热层防冻法、伴热技术和放水保温3种国内外常用的供水设施防冻抗冻措施,分析了南北方不同地区适用的给水设施防寒抗冻措施,给出了保温材料和保温层厚度的选取依据和计算方法。并以杭州地区为例,应用了防冻抗冻的一些工程技术措施和建设模式,给出了具体的设计和改造参数以供参考,并提出相关政策和管理建议。

Influenced by climate and other factors,the issue of drinking water supply facilities being frozen is a major problem that affects winter water supply and restricts city operation management.This article investigated and analyzed three anti-freezing measures that commonly used in water supply facilities at home and abroad,including thermal insulation layer,heat tracing technology and drainage insulation.The frost-resistant measures of water supply facilities applicable in North and South area were analyzed,and the selection basis and calculation method of thermal insulation material and thermal insulation layer thickness were given.Meanwhile,taking Hangzhou area as an example,some engineering technical measures and construction modes of anti-freezing were applied on it.The specific design and transformation parameters were given for reference.Also,relevant policies and management suggestions were provided.