| 摘要 |
PURPOSE:To judge the rate of leakage accurately, by providing a display device, which displays pressure value and temperature in a part to be inspected, and a recorder, which records the values, and adding a correcting value based on temperature change to the pressure value. CONSTITUTION:When the air leakage of a first cask 1 is inspected, each of plugs 12A-12E of a first pressurizing unit 7 is connected to a hole 21 between each valve box part 4 and a double O ring at a lid part. The valves of pressurizing bombs 14A-14D are opened, and a specified air pressure is applied to each part to be inspected. Then the valves of the pressurizing bombs 14A-14D are closed, a valve V-1 of a pressure detecting part is closed, and the apparatus is left intact for a specified time. When air leaks from the O ring, the pressure is gradually decreased. The leakage is detected by a first pressure detecting part 16, displayed on a display device 44, and recorded on a two-pen recorder 45. The temperature in a pressure detecting part is detected by a thermocouple, and the detected value is recorded and displayed on the display device. |
