| 摘要 |
The invention relates to a pump-turbine system, comprising a turbine (1) with a turbine impeller (1.1) and with a turbine spiral housing (1.2) and a turbine intake pipe (1.5); a pump (2) with a pump impeller (2.1) and a pump spiral housing (2.2) and a pump intake pipe (2.5); the two spiral housings (1.2, 2.2) are arranged so as to run oppositely to one another; a shaft (3) on which the turbine impeller (1.1) and the pump impeller (2.1) are arranged in a rotationally conjoint manner; an electric machine (4) which is drive-connected to or can be placed in drive connection with the shaft (3); the pressure lines (1.3, 2.3) of the two spiral housings (1.2, 2.2) issue into a common pressure line; the two intake pipes (1.5, 2.5) are connected in each case to intake lines (1.4, 2.4), wherein the two intake lines (1.4, 2.4) issue into a common intake line (8); in each case one separate shut-off element (1.6, 2.6) is arranged in the intake lines (1.4, 2.4). |
