METHOD FOR INCREASING EXPLOSION SAFETY OF NUCLEAR POWER PLANT USING GAS INERTIZER AND DEVICE FOR ITS IMPLEMENTATION Russian patent published in 2023 - IPC F42D5/45 A62C3/00 

FIELD: nuclear power plants.

SUBSTANCE: invention relates to methods for reducing explosive loads arising from volumetric explosions of hydrogen-air and other explosive gas mixtures that threaten the loss of integrity of the nuclear power plant containment and industrial buildings of explosive industries. A method of increasing explosion safety in enclosed spaces by reducing the impact of a combustion wave or shock wave on the protected surface consists in placing obstacles in front of the protected surface in the form of shells filled with helium, the shells are made of material that collapses during and under the action of movement along the surface of the shells of the front of the combustion wave or shock wave, to pressurize the shells with helium on the protected surface rigidly fixed tubular structures are evenly placed, the sealed cavities of which are pre-filled with helium under excessive pressure, the shells are filled with helium immediately after the detection of combustible gas in a dangerous concentration in the space in front of the protected object, whereas the shells are fixed to tubular structures, the movement of the shells during their pressurization is limited by grids, and atmospheric air is removed from the space between the shells and the protected surface using drainage tubes. The device for implementing the method comprises shells for filling with helium, sensors for determining the concentration of combustible gas, a controller that, if necessary, activates the helium supply mechanism, helium storage cylinders, a helium supply distribution system and a compressor, tubular structures with sealed cavities for filling under overpressure with helium intended for pressurization of shells, grids that limit the movement of shells during their pressurization, drainage tubes and fasteners.

EFFECT: reduced time during which the shells are filled with helium, as well as reduced volume of residual atmospheric air in the gaps between the shells after helium is filled into them.

12 cl, 8 dwg