成都市自来水六厂B厂工艺特点、应急机制及案例分析

Technology Characteristics,Emergency Mechanism and Case Analysis of Plant B of Chengdu No.6 Waterworks

成都市自来水六厂B厂是国内第一个BOT市政供水项目,包括80×104m3/d的取水工程、40×104m3/d的净水厂、140×104m3/d净水厂的排水总渠以及27 km长的输水管道。该厂采用MultifloTM高密度沉淀池工艺和高速砂滤池工艺,为应对水质污染、原水水质突变、设备故障、双电源停电、氯气泄漏以及其他不可抗力事件,从工艺设计、管理、运行上采取了多种有效措施,为安全持续生产提供了有力的保障。

Plant B of Chengdu No. 6 Waterworks is the first domestic BOT municipal water supply project. It includes an 800 000 m3/d water-intake facility, a 400 000 m3/d water purification plant, a 1.4 million m3/d chief drainage of the plant and a 27 km water distribution pipeline. The MultifloTM settler and the TGV filters are described. Many effective measures in process design, management and operation, taken to deal with all the emergencies, including water pollution, abrupt change of raw water quality, failure of equipment, double power cut, chlorine gas leak and other events of force majeure are introduced to provide guarantee for safe and sustainable production.