| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a liquid level sensing device, a container vessel with the liquid level sensing device and filling system of filler which are capable of filling and sealing radioactive waste with filler, surely sensing the liquid level of the filler in the vessel, reducing the man power load even when radioactive waste with smaller specific weight than the filler are mixed in the container. <P>SOLUTION: The upper part of a drum 40 is closed with a lid 41 having a penetration hole 44 and an inlet 42 of filler, and a float body 12 equipped with a freely elevated switch body 13 is inserted in the penetration hole 44. A float prevention body 16 having a multitude of penetration holes with a specific intervals is supported below the lid 41 and inserted in the drum 40 to prevent floating of contained radioactive waste. If the filler floats the float body 12, the switch body 13 operates the switch 10 so as to send signal to an external output device 30. <P>COPYRIGHT: (C)2005,JPO&NCIPI</p> |
