SYSTEM OF LIMITING THE CONSEQUENCES OF ACCIDENTS AT A NUCLEAR POWER PLANT

摘要

1. System for limiting the consequences of accidents at a nuclear power plant with loss of coolant, containing a sealed first room with a reactor installation surrounded by a ring screen from flying objects, and a sprinkler condensation device, located below the first second room with a water pool for condensation of steam generated during an accident between the first and second premises with channels in it for the passage of the vapor-air mixture to the pool, characterized in that, in order to increase the efficiency In order to protect the environment from radioactive emissions, an additional passive type sprinkler condensation device is installed above the first room, made in the form of an insulated tank filled with water, the water space of which is connected to the hydraulic seal that forms the water spraying device in the first room is at least at least two holes for the release of vapor-air mixture, located in the lower part of the first room and evenly distributed over it about the perimeter, the inlet sections of the channels are as far as possible from the holes in the screen, and the channels themselves form a hydraulic lock that prevents the backflow from the second room of the air displaced from the first room and the intermediate chamber. A system according to claim 1, characterized in that the water space of the container is connected to the first room, at least one additional hydraulic seal forming pipeline, the output end of which is provided with a throttle device. A system according to claims 1 and 2, characterized in that the water space of the tank is connected to a heat exchanger located in the first room or in an intermediate chamber. A system according to claim 1, characterized in that the hydraulic lock forming pipeline is equipped with a throttle device located at the end, and the air space of the container is connected to the first room. The system according to claim 4, characterized in that the pipeline that forms the hydraulic lock has an expansion in the form of an intermediate tank located under the water space of the container between the hydraulic lock and the throttle device. The system of PP. 4 and 5, characterized in that the pipeline that forms the hydraulic lock is equipped with a water-jet ejector to suck air from the space above the hydraulic lock or from the intermediate tank. A system according to claim 5, characterized in that the upper part of the intermediate tank is connected to the intermediate chamber. A system according to claim 7, characterized in that the upper part of the intermediate tank is connected to the intermediate chamber through the suction chamber of the gas-jet ejector connected between the first room and the intermediate chamber.