|発明の名称||IMPULSE TURBINE DEVICE|
PROBLEM TO BE SOLVED: To provide an impulse turbine device which can be efficiently used for electric power generation or the like on an extremely low specific speed spot of a high head and a small flux such as water works.
SOLUTION: An impulse turbine device is provided with a casing 10 which configures a sealed space in the middle of a pipe line for transporting liquid and is provided with an impeller 12 which is rotated by an ejection flow of the liquid in the casing 10. Therein, an inflow pipe 14 and an outflow pipe 16 are respectively connected to the upstream side and the downstream side of the casing 10, auxiliary channels 22a, 22b which bypass between the inflow pipe 14 and the outflow pipe 16 and an auxiliary channel 22c which is communicated with the casing 10 are provided, and negative pressure generation means 20 which generates a negative pressure with a fluid pressure of the liquid branched from the inflow pipe 14 among the auxiliary channels 22a, 22b, 22c and discharges the liquid stagnating in the casing 10 to the outflow pipe 16 is provided.
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