| 摘要 |
PROBLEM TO BE SOLVED: To provide a seismic control device for a pump, for preventing the breakage of a pump structure by suppressing the vibration due to operation and earthquake.SOLUTION: A seismic control device 26 includes a liquid flow path 27 provided on the outer periphery of a casing 11 located in a suction water tank 5 for internally storing liquid in a flowable manner. To the liquid flow path 27, a gas flow path 37 is connected. In the gas flow path 37, a gas flow resisting part 40 is provided for suppressing the flow of gas. In addition to the operation of a liquid column pipe type dynamic vibration reducer, a flow resistance absorbs earthquake vibration energy to suppress the vibration. |
