Safety shell high-range area radiation monitoring hard cable connecting device and assembling method thereof

Abstract

The invention discloses a safety shell high-range area radiation monitoring hard cable connecting device and an assembling method thereof; the safety shell high-range area radiation monitoring hard cable connecting device comprises a connecting box, wherein the connecting box comprises a connector arranged in the connecting box and a connecting block used for fixing the connector, wherein the connector comprises a male head connector and a female head connector; the male head connector comprises a male head shell and a first tail clamp screwed into the tail end of the male head shell, and a male head insulator is arranged in the male head shell; a first hard cable penetrates through the first tail clamp and the male head insulator in sequence and is connected to the tail end of a male headinner core; the female head connector comprises a female head shell and a second tail clamp which is screwed into the tail end of the female head shell; a female head insulator is arranged in the female head shell; a second hard cable sequentially penetrates through the second tail clamp and the female head insulator in sequence and is connected to the tail end of a female head inner core; and the front end of the male head inner core is connected with the front end of the female head inner core.

Description

technical field [0001] The invention relates to the field of nuclear power plant monitoring, in particular to a hard cable connection device and an assembly method for radiation monitoring in a high-range area of ​​a containment vessel. Background technique [0002] Since the containment after the accident is a harsh environment of high temperature, high pressure, high humidity, and high radiation, the signal acquisition and processing unit of the ionization chamber should not be installed in the containment, but must be installed in the measurement room outside the containment. On the other hand, the distance from the installation position of the ionization chamber of the high-range regional radiation monitor inside the containment to the signal pre-processing unit outside the containment is about 160m. In such a harsh environment and long distance, the noise generated by ordinary cables is very serious, and the attenuation of effective signals is also very serious. Theref...

AI Technical Summary

Problems solved by technology

In such a harsh environment and long distance, the noise generated by ordinary cables is very serious, and the attenuation of effective signals is also very serious

Therefore, ordinary cables are not suitable as high-voltage power supply cables for signal transmission in ionization chambers of high-range area radiation monitors in containment shells, and special cables and corresponding special hard cable junction boxes must be used.

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