在给水泵站改造或检修施工中,常因闸门开关不灵而无法断水,给工程进度带来一定影响,有时甚至不得不大动干戈进行停产排水,造成部分或整个厂区停产,其经济损失不可估量。1987年,在首钢新二号炼钢厂输水管线与原五号泵站连接改造施工中,针对老闸门关闭不严、漏水严重的问题,设计了一种简易的堵水方法——帆布水槽止水闸,见图1。该方法采用帆布缝制一个 In the reform or maintenance of the water pumping station, often due to the failure of the gate switch can not cut off water, to a certain degree of impact on the progress of the project, and sometimes even have to move to stop production drainage, causing part or the entire plant to stop production, its economic losses can not be measured. In 1987, during the reconstruction of the connection between the No. 2 steelmaking plant of Shougang New Steel Plant and the original No. 5 pumping station, a simple water-blocking method was designed for the problem of lax closing of the old gate and serious water leakage. Stop valve, see Figure 1. This method uses a canvas to sew a