公开(公告)号：US5235624A

公开(公告)日：1993-08-10

申请号：US758683

申请日：1991-09-12

申请人： Michel Bordy ,  Bernard Gebelin

发明人： Michel Bordy ,  Bernard Gebelin

IPC分类号： G21C17/07

CPC分类号： G21C17/07

摘要： The fuel element is inserted into a cell, under water, in a pool. Compressed air is injected into the cell so as to drain it of water. A pressure lower than atmospheric pressure is established in the cell and then the gases contained in the cell are subjected to a stream of scavenging air and are collected in a fission product detecting unit. Water is introduced into the cell, the water in the cell is sampled, fission products in the water sample are detected and the fuel element is extracted from the cell if the possible presence of a leak from this fuel element is determined. The detection device comprises a cell having an elongate body delimiting a central housing for a fuel element and end parts. One of the end parts, traversed by a channel in the extension of the housing, receives a cap for opening and closing the channel associated with a remotely controllable opening and closing arrangement. The device also comprises a fluid circuit enabling the cell to be supplied with pressurized water and compressed air.

摘要翻译： 将燃料元件插入电池中，在水下，在池中。 将压缩空气注入到电池中以便将其排出水。 在电池中建立低于大气压的压力，然后将包含在电池中的气体经受清除空气流并收集在裂变产物检测单元中。 将水引入电池中，对电池中的水进行采样，检测水样中的裂变产物，并确定燃料元件是否从该燃料元件泄漏可能出现。 检测装置包括具有限定用于燃料元件和端部的中心壳体的细长主体的电池。 通过在壳体的延伸部中的通道穿过的一个端部部分接收用于打开和关闭与可遥控的打开和关闭装置相关联的通道的盖。 该装置还包括使电池能够被供应加压水和压缩空气的流体回路。

公开(公告)号：US5118463A

公开(公告)日：1992-06-02

申请号：US472234

申请日：1990-01-30

申请人： Michel Bordy ,  Pascal Descot ,  Pierre Amiet

发明人： Michel Bordy ,  Pascal Descot ,  Pierre Amiet

IPC分类号： G21C17/07

CPC分类号： G21C17/07

摘要： The assembly (1) is immersed in the water of a pool and placed in vertical position. Detection of the rods (6) of the assembly exhibiting cracks giving rise to leakage is ensured by transmission of ultrasonic waves along the length of each of the rods (6) and by measuring the attenuation of the ultrasonic waves due to the presence of water inside the rods (6) whose cladding is cracked. The ultrasonic waves are picked up after propagation on the cladding of the rods (6) of the assembly along their length, below the lower end fitting (5) in place on the assembly (1). The detecting device comprises an ultrasonic transducer (11) capable of transmitting ultrasonic waves along the length of the rod from its upper part, and a receiver probe (16) for the ultrasonic waves, placed under the lower end fitting (5).

摘要翻译： 将组件（1）浸入池的水中并放置在垂直位置。 通过沿着每个杆（6）的长度传播超声波，并且通过测量由于内部存在水而引起的超声波的衰减，来确保出现产生泄漏的裂纹的组件的杆（6）的检测 其包层破裂的杆（6）。 在组件的杆（6）的包层上沿着它们的长度，在下端配件（5）下方的组件（1）上的适当位置传播超声波。 检测装置包括能够从其上部沿杆的长度传输超声波的超声波换能器（11），以及放置在下端配件（5）下方的用于超声波的接收器探头（16）。