| 摘要 |
PURPOSE: A swing check valve for preventing the extraction of a turbine is provided to prevent the distortion or deformation of a disc as a curved concave portion on one side of the disc in order to reduce the distribution deviation of the pressure over the entire surface. CONSTITUTION: A swing check valve for preventing the extraction of a turbine comprises a body, a shaft, and a disc(30). The body has a channel and a flange. The flow of fluid is guided by the channel. The flange protrudes along the inner side of the channel. The shaft is rotatably inserted at the top of the body. In a state of blocking the channel, the disc is turned along an arc trajectory by a pushing force of the fluid and opens the channel. The disc comprises a support shaft(33), a connection shaft(34), an opening and closing plate member(35), and a tightening member(36). |
