| 摘要 |
PURPOSE: A Manway cover opening/closing apparatus of a primary side of a steam generator is provided to shorten a time for checking and mending a steam generator by rapidly opening/closing a manway cover of the steam generator. CONSTITUTION: A mobile unit(110) is arranged in a lower part of a fixing frame(100). A vertical moving unit is coupled with an upper part of the fixing frame. A vertical moving shaft is connected to the vertical moving unit. One end of a vertical guide frame(400) is coupled with the vertical moving shaft. A cover supporting unit is moved along the vertical guide frame. A first vertical moving unit is coupled between the vertical moving shaft and the cover supporting unit. A second vertical moving unit is coupled between the other end of the vertical guide frame and the fixing frame. |
