手压泵二级抽水装置手压泵吸水扬程的最大理论数值一般是10.336来,但因沿程损失和吸水管内不能完全形成真空等原因,吸水高度达不到10米,一般是8～9米。为了解决地下水埋深10米以上地区的吃水问题,泾阳县农村研制出手压泵二级抽水装置,虽其形式有几种,但以图1形式结够较紧凑、检修方便、压水省力、花浅 The maximum theoretical value of the hand-held pump suction head pressure pump is generally 10.336, but due to loss along the way and the suction pipe can not be completely formed within the vacuum and other reasons, the water absorption of less than 10 meters, usually 8 to 9 meters . In order to solve the problem of draft of groundwater above 10 meters in depth, Jingyang County has developed a secondary pumping device for pump-pressured pumps. Although there are several types of pumping devices, it is more compact in the form of Figure 1, convenient for maintenance, shallow