Electrical penetration piece of liquid-sealed nuclear reactor containment

Abstract

The invention relates to a nuclear reactor containment assembly, and particularly relates to an electrical penetration piece of the liquid-sealed nuclear reactor containment. The electrical penetration piece comprises a sleeve; a plunger is arranged at the opening part of the sleeve, and the plunger is in sealing connection with the sleeve; conductive columns are arranged in the sleeve, and a gapis formed between the conductive columns and the inner wall of the sleeve; two ends of each conductive column respectively penetrate through the plunger and the bottom of the sleeve to extend outsides; and the conductive columns are in sealing connection with the plunger and the bottom of the sleeve. The electrical penetration piece is characterized in that the sleeve is filled with an insulatingliquid, the side wall of the sleeve is provided with a liquid level opening, a liquid level meter is arranged in the liquid level opening, and the outer wall of the liquid level meter is in sealing connection with the inner wall of the liquid level opening. The sealing effect of the electrical penetration piece is good, potential safety hazards are avoided, the use range is wide, the size is small, and the occupied space is small.

Description

technical field [0001] The invention relates to a nuclear reactor containment shell assembly, in particular to a liquid-sealed nuclear reactor containment electric penetrating piece. Background technique [0002] The containment vessel is a structure containing the reactor and some important equipment. It is an important barrier to prevent the leakage of radioactive materials and protect the internal equipment against external events. As a part of the containment boundary, the containment penetration should meet the strength requirements and leakage rate requirements of the containment in terms of its structural design. [0003] At present, the containment penetrating parts used in the industry include sleeves. The mouth of the sleeve is provided with a plunger. The plunger and the sleeve are connected in a fixed and sealed manner. There are gaps between them, the two ends of the conductive column protrude through the bottom of the plunger and the sleeve respectively, and t...

AI Technical Summary

Problems solved by technology

However, there will be a gap between the solid sealing material and the sleeve and the conductive column, resulting in poor sealing effect and certain safety hazards. It cannot be used on the reactor containment in the marine environment, and the scope of use is small.

Moreover, in order to ensure the airtightness of the solid sealing material, it is necessary to fill the casing with nitrogen gas with nitrogen filling equipment, and install a pressure gauge to monitor the airtightness, resulting in a large volume of the entire penetration and a large space occupation

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