水下机器人：在安全壳内完成的工作：福岛第一核电站 1 号机组
-安装导向环-
2022 年 2 月 10 日
东电：
9日，完成了水下机器人的初步工作。
福岛第一核电站1号机组采用水下机器人调查反应堆安全壳内部。
介绍水下机器人：
我们成功安装了导向环，使机器人可以在死水中移动。
导向环安装在安全壳壁上的四个位置。
这将是未来总共引入五种后续机器人的路径。
反应堆安全壳的内部调查：
半年多
检查熔化的核燃料的状态，
使用超声波的内部 3D 映射，
我们计划继续对沉积物进行取样。
这项工作：
我还拍了一张内部情况，
沙质沉积物和覆盖碎片的碎片，
还确认了死水表面上的油漂浮物。
水中的辐射剂量：
水中的辐射剂量为1-2 Sv / h。
分析视频并审查未来的流程。
Kahoku Shimpo / 在线新闻
https://kahoku.news/articles/20220209khn000034.html
The operator of the damaged Fukushima Daiichi nuclear plant has released images of deposits under the water inside the facility’s No.1 reactor.
Tokyo Electric Power Company,
or TEPCO, began a robot probe inside the reactor’s containment vessel on Tuesday.On Wednesday,
the utility explained that the first robot had finished securing a passageway in the water for other robots.TEPCO also released video
taken by the robot’s camera. It shows the robot installing a ring,which will keep cables of robots from getting stuck within structures inside the containment vessel.
The video also shows matter accumulated around the entrance of a pipe at the bottom of the containment vessel.
TEPCO says
it cannot determine at this stage whether the matter is molten fuel debris.The utility plans
to retract the first robot on Thursday and put the second one in to take more precise images as soon as preparations are finished.The Fukushima Daiichi plant
suffered a triple meltdown in the March 2011 earthquake and tsunami.Previous surveys confirmed
the presence of deposits believed to be fuel debris in the No. 2 and No. 3 reactors, but not in the No. 1 reactor.NHK WORLD-JAPAN News