Patent Number: 
Section: claims

1. A safety system for a nuclear plant, the safety system comprising:a plurality of catalytic recombiner elements each for triggering a recombination reaction with oxygen upon hydrogen being entrained in onflowing gas flows of a gas medium;said recombiner elements being configured to act as ignition elements and to create a pressure pulse in the gas medium resulting from an ignition during the recombination reaction;said recombiner elements being interconnected by flow paths and including a first recombiner element and a second adjacent recombiner element; andsaid recombiner elements and said flow paths each being configured to cause the pressure pulse of said first recombiner element:to trigger a gas displacement process preceding a flame front,to have a flow rate of at least 5 m/s, andto cause intensified heating of said second recombiner element and as a result an ignition of the gas flow even before the flame front reaches said second recombiner element. 2. The safety system according to claim 1, wherein the flow rate for the triggered gas displacement process is predefined as at least 10 m/s. 3. The safety system according to claim 1, wherein at least one of said recombiner elements is constructed to trigger an ignition in a circulating gas flow in a natural convection mode only when a content of entrained hydrogen is at least 6% by volume. 4. The safety system according to claim 1, wherein at least one of said recombiner elements is constructed to trigger an ignition in a circulating gas flow in a natural convection mode only when a content of entrained hydrogen is at least 8% by volume. 5. The safety system according to claim 1, which further comprises a building spray system. 6. The safety system according to claim 5, wherein said building spray system injects water as required. 7. The safety system according to claim 5, wherein said recombiner elements and said building spray system are adapted to one another to initially form high-temperature target ignition zones and then carry out steam deinerting, in the event of a response. 8. A nuclear plant, comprising a safety system according to claim 1. 9. The safety system according to claim 1, wherein said recombiner elements and said flow paths are configured such that the velocity of the gas flow of the pressure pulse is more than twice as high as the gas flow velocity present in a convection operating mode.