| 摘要 |
<p>The present invention relates to a balancing apparatus for a water supply pipe of a hydroelectric power plant which adjusts water pressure difference between an upper side and a lower side of the water supply pipe around a water supply pipe opening/closing valve before the water supply pipe opening/closing valve installed in the water supply pipe to supply water from an upper reservoir part to a lower reservoir part is opened. The balancing opening/closing valve is applied to a cylinder operation structure. A flow path of a high pressure influencing on a disc is easily opened and closed as securing rapid opening/closing speed according to elevation of a valve stem with a low force of a cylinder rod operated by a single acting cylinder using the principle of the lever of a rotation lever. Also, a point of application and a point of force of the rotation lever connected to the cylinder rod and the valve stem lifting up and down in a straight line have each rotation radius, and the cylinder rod and the valve stem can be easily connected structurally through an application delivery wheel and a force deliver wheel. Thus, waste of force is reduced and delivery power can be increased. Especially, because the force is applied only to the direction along which the disc is opened using the single acting cylinder, the high pressure of an inflow flow path of the balancing pipe connected to the upper side flow path of the water supply pipe together with a stem spring and a cylinder return spring is added to the direction of closing the disc opposite to the established direction and thus it is not necessary to waste the power and response speed can be increased.</p> |
