在去年抗旱工作中,由于河库湖堰水位下降,有些泵站水位低于原设计枯水位,机手和农民为抽不上水灌田甚感焦急。为了使水泵在枯水位下继续抽水灌田、通常采用“水泵下座”方法,即拆除机墩、开挖基础来降低水泵安装高度,并适当提高转速来解决。实践证明,此法对临时泵站较为适用,而对固定泵站 In last year’s drought relief work, due to the decline of the water level of the Heku Lake weir, some of the pumping stations have a lower water level than the original designed dry water level. In order to make the pump continue to pump water under irrigated fields, it is common to adopt the method of “pump under the seat”, that is, to demolish the pier and excavate the foundation to reduce the installation height of the pump and appropriately increase the speed to solve it. Practice has proved that this method is more applicable to the temporary pumping station, while the fixed pumping station