论文部分内容阅读
气、水混合冲洗法和高压射流法所用设备简单、操作方便、成本比较低、宜在处理一般水质问题时采用。对部分管道内壁锈蚀严重的,可改用弹性冲管器法。管网冲洗能在一定程度上控制水质问题的发生或减轻水质问题带来的危害,因而应有计划地周期性开展。要加强对这部分管网的冲洗。死水端是最容易出现水质问题的区域,需经常冲洗,控制其带来的不良影响。排水阀和消防栓等管网配件的使用频率低,阀体内外腐蚀比较严重,应定期排水冲洗这些配件。
Gas, water, mixed flushing method and high pressure jet method used equipment is simple, easy to operate, the cost is relatively low, should be used in dealing with general water quality problems. Corrosion on the part of the pipeline wall serious, flexible tube method can be used instead. Pipeline flushing to a certain extent, control the occurrence of water quality problems or reduce the hazards caused by water quality problems, and therefore should be carried out periodically planned. To strengthen the part of the network irrigation. The dead end is the most prone to water quality problems in the area, need to be washed regularly to control the adverse effects. Drain valves and fire hydrant pipe network accessories such as the use of low frequency, corrosion inside and outside the valve is more serious, should be regularly rinse these accessories.