某商住楼供水工程设备方案选择和节资分析

随着多层和高层建筑的增多，人们对供水的要求越来越高，节水、节资、防污染已成为当今社会关注的焦点．这使高效的环保产品变频调速无吸程管网增压供水设备得到了广泛使用．该文根据《建筑给水排水设计规范》(GB50015—2003)的相关条款要求，对某商住楼供水要求的设备选型进行了计算，对方案的性能和投资进行了对比分析，认为选用无负压管网增压稳流供水设备的方案2，更能保证供水的质量，同时降低了运行费用，方便了设备的维修与管理．

Equipment selection & scheme analysis for a commercial building's water supply retrofit re-engineering project

With the increase of multi-story buildings and skyscrapers, the water supply demand from the people is becoming higher and higher. Water-conservation, capital saving, and pollution-resistant have become the focus of social attention. This makes the efficient and environmentally safe products being used more widely. This article, based upon the requirements raised by the relevant clauses of Design specifications for water supply and water drainage (GB50015-2003), introduces the calculation of the water supply equipments selected for a commercial building, compares and analyses the performance and investment of the scheme, suggests choosing scheme 2, i.e. Pressure increase & flow stabilization water supply method with non-negative pressure plumbing system. It is a better guarantee to the water supply quality and meanwhile reduces the operating cost, makes the maintenance and management of the equipment easier.