| 摘要 |
PURPOSE: A method for sealing a test fuel rod mounting a thermocouple for a high temperature and a leakage testing method thereof are provided to be efficiently used in a nuclear power test field by forming a sealing structure with two steps. CONSTITUTION: A spring(3) is connected to a first pole stopper(1). A second pole stopper(7) is connected to a coating pipe. A thermocouple(6) for a high temperature is formed in the center of the coating pipe to pass through the second pole stopper. An intermediate connection plug(8) is connected to the first pole stopper. A sealing tube(9) is formed in one end of the intermediate connection plug. A sealing nut(10) is combined with the intermediate connection plug and the sealing tube. |
