Containment personnel gate emergency air supplement system and containment personnel gate emergency air supplement method

Abstract

The invention belongs to nuclear power plant design technology and particularly relates to a containment personnel gate emergency air supplement system and a containment personnel gate emergency air supplement method. A personnel gate comprises an inner gate and an outer gate and a gate chamber formed therebetween. An emergency air supplement apparatus is disposed at the outer gate and includes an air inlet channel and an air outlet channel. The air inlet channel and the air outlet channel are respectively provided with an air inlet valve and an air outlet valve. A fan is connected to one end, which is positioned at an outer side of the containment, of the air inlet channel. Both the air inlet valve and the air outlet valve are connected to the same linking handle and are synchronously controlled through the linking handle. The linking handle triggers a travel switch and further starts an electrical control unit when the air inlet valve and the air outlet valve are in an open state. The electrical control unit is connected to the fan which is arranged at one end of the air inlet channel. The emergency air supplement system can supply external air to interior of a sealed cavity for ensuring life safety of trapped people.

Description

technical field [0001] The invention belongs to the design technology of nuclear power plants, and in particular relates to an emergency air supply system and method for a containment personnel gate, which can avoid life safety accidents caused by lack of oxygen supply for personnel trapped in a closed compartment of the gate. Background technique [0002] As an integral part of the reactor containment, the personnel gate of the nuclear power plant should have the following functions during the operation of the nuclear power plant: ① keep radioactive substances in the containment from leaking; ② limit the leakage of ionizing radiation from the boundary of the control area; ③ ensure the safety of personnel access, etc. For this reason, the personnel gate is designed as a double door body, and each door body is provided with a mechanical penetrating piece and an electrical penetrating piece to realize its specific function. [0003] If the gate breaks down during the period wh...

AI Technical Summary

Problems solved by technology

[0003] If the gate breaks down while the person is in the gate cabin, the gate cannot be opened electrically or manually, and it cannot be solved in a short time

Since the personnel gate itself has the function of preventing air leakage, the gate cabin forms a closed space, and personnel safety accidents may occur due to lack of oxygen supply in the cabin.

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