目前若干铁路给水站的铸铁管路交付使用后,发现水鹤秒流量逐年减少,致使管路不到大修期,水鹤上水时分就达不到规范要求,给运营管理带来了困难。 我们曾在不同时间内对四个给水站的8组水鹤出水量进行了调查,结果如表1。 At present, after the cast iron pipelines of some railway water supply stations are put into use, it is found that the second-phase flow of water cranes is decreasing year by year, resulting in the pipelines being out of the overhaul period, and the water cranes fail to meet the regulatory requirements at the time of launching the water, which brings difficulties to the operation and management. We have investigated the water yield of 8 sets of water cranes at four water supply stations at different times. The results are shown in Table 1.