| 摘要 |
PURPOSE: A device for controlling the pressure of an outlet of a pump is provided to reduce the energy consumption by reducing the flow rate, thereby obtaining the reduced energy consumption of an inverter. CONSTITUTION: A device(100) for controlling the pressure of an outlet of a pump comprises a valve(130), a casing(110), a shaft(123), an actuating disc(120), an operation pressure setting unit(140), a fluid path(124), and a hydraulic pressure generating pipe(151). The valve is installed in a recovering pipe connecting an inlet or an outlet, thereby opening or closing the same. The casing is arranged in the upper part of the valve. The shaft is extended inside of the casing by being protruded for operating the valve. The actuating disc is fixed in the upper end of the shaft, thereby being rotated. The operation pressure setting unit obtains a reaction force of the other side of the actuating disc by a compressive spring(144). |
