DEVICE FOR EQUALIZING PRESSURE BETWEEN A REACTION CHAMBER AND COOLING SCREEN GAP IN AN ENTRAINED-FLOW GASIFIER HAVING A FIXED WELDED COOLING SCREEN

摘要

The invention relates to a reactor for gasifying gaseous, liquid, or solid fuels in an entrained flow, comprising a cooling screen welded gas-tight into a pressure shell. In order to equalize pressure between the reaction chamber and the cooling screen gap, a connection is provided between the nitrogen-purged monitoring channel in the burner and the cooling screen gap. For emergency pressure relief, controlled connections can be added between the cooling screen gap and the fuel inlets and oxidation agent inlet. Damage to the cooling screen due to excessive pressure differential between the reaction chamber and the cooling screen gap is avoided, and corrosion in the cooling screen gap due to gasifier gas is prevented.