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水上供水厂是建在船上的水厂 ,它集取水、制水及加压为一体 ,具有布置紧凑 ,移动灵活 ,少占地等优点。特别适用于向大、中型水利水电工程及用地较紧张地区提供生产和生活用水。专为三峡工程施工供水设计和制造的水上水厂船 ,其供水能力为 9万t/d ,船的型长 82m ,型宽 2 2m ,型深 3.8m ,是目前我国规模最大的一艘水上水厂船。三峡施工期的供水特点是 :水量大 ,时、日、月及年的变化系数大 ,供水可靠性要求高。为了确保三峡水厂船保质、保量供水 ,对已建的水上水厂船进行了考察。在设计中 ,既吸取了已有的经验 ,又针对已建水上水厂的不足之处 ,从工艺流程形式、变配电方式及自动控制、安全防护设施等 3方面进行了改进 ,使各项指标均达到了设计指标要求 ,满足了施工用水。
The water supply plant is a water plant built on a ship. It integrates water intake, water production, and pressurization. It has the advantages of compact layout, flexible mobility, and less land occupation. It is particularly suitable for providing production and domestic water to large and medium-sized water conservancy and hydropower projects and areas with high land use. The water-plant ship designed and manufactured for the construction of the Three Gorges Project water supply has a water supply capacity of 90,000 t/d, a ship length of 82m, a width of 2 2m, and a depth of 3.8m. It is currently the largest one in China. Water plant ship. The characteristics of water supply during the construction period of the Three Gorges Project are as follows: large water volume, large coefficient of variation in hour, day, month and year, and high water supply reliability. In order to ensure the quality and quantity of water supply for the Three Gorges Waterworks, an inspection of the existing waterworks ships was conducted. In the design, we not only learned the existing experience, but also made improvements to the inadequacies of the established waterworks, from the three aspects of the process flow form, power distribution and automatic control, and safety protection facilities. The indicators have met the requirements of the design index and have met the construction water use.