The pulse pump is a new-type pump, in which the fluid successively flows out in one direction by means of the pulse effect in the uniflow pipe.

泵单一,能量转换效率,单级扬程范围较广。泵出连、量较大而无气蚀危险。

Introduces the application of PC programmable controller at uniflow high-speed elevator, and the principle of controlling uniflow high-speed elevator.

介绍PC可编程控制器及其在速电梯上的应用,及速电梯的控制原理。