How to ensure the safety of hydrogen explosions at nuclear power plants

摘要

PROBLEM TO BE SOLVED: To provide a technique for emergency protection of a nuclear power plant, in particular, a technique for reducing a disaster or preventing a fire and an accumulation of explosive gas, and a nuclear power plant (NPP) using a water-cooled reactor (WWER). ) Is a technology to ensure the safety of hydrogen explosion inside the containment vessel (CNT). It can also be used in other facilities that risk the release of large amounts of light combustible gases and the occurrence of potentially dangerous emergency processes for their localization in closed facilities. It reduces the risk of ignition of the gas medium in the NPP CNT facility, provides self-extinguishing of weak combustion waves, reduces the strength of the ignition of the gas medium in the NPP CNT facility, and To reduce the dynamic load on the wall. SOLUTION: A reflector is placed in the path of a potential accidental propagation of a vapor gas jet containing pressure hydrogen, including hydrogen bonding in the facility of the reactor facility by ventilation and catalytic oxidation in the facility of the reactor facility, Openings are made in the inter-facility walls of the reactor containment chamber with a size equal to a minimum of 35% of the wall surface area to allow removal of excess heat in the area of potential localization of the hydrogen-containing vapor gas mixture combustion source. Done. [Selection diagram] Figure 1