Undisturbed switching method for operating modes of multi-stage pump station and energy dissipater thereof

摘要

There is provided an energy dissipater used for undisturbed switching of operating modes of a multi-stage pump station, and an undisturbed switching method for switching between a continuous pumping mode and an independent mode of the multi-stage pump station by utilizing the energy dissipater. A first ball valve (FV01) and a second ball valve (FV02) are arranged between a forward-stage pump station and a main pump inlet of the multi-stage pump station. A third ball valve (FV03) is arranged between the output end of the first ball valve (FV01) and an agitating tank/pool. A feeding pump ball valve (FV04) is arranged between the output end of the second ball valve (FV02) and a feeding pump (3). The energy dissipater (1) comprises a ceramic energy dissipating plate (2), an input ball valve (FV06) arranged at the front end of the energy dissipating plate, an output ball valve (FV07) arranged at the back end of the energy dissipating plate, and a control ball valve (FV05), wherein the input ball valve is connected with the output end of the third ball valve (FV03), the output ball valve (FV07) is connected with one end of the agitating tank/pool, and the control ball valve (FV05) is arranged between the third ball valve (FV03) and the agitating tank. By utilizing the energy dissipater and the method, the pressure at the inlet is ensured not to change when the main pump is switched.