PENETRATION PART STRUCTURE OF HEATING FURNACE, METHOD OF CONSTRUCTING PENETRATION PART OF HEATING FURNACE, AND HEATING FURNACE

摘要

PROBLEM TO BE SOLVED: To prevent the leaking of high-temperature gas from between a penetration part seal member and a reaction tube.;SOLUTION: Provided is a heating furnace penetration part structure for covering a clearance between a penetration part 5 and each of a plurality of reaction tubes 3 with a heat resistant and flexible penetration part seal member 9 from above in a heating furnace configured so that a heating space S is formed within a metallic casing 2 having an inner surface on which a heat resistant layer 1 formed out of a castable refractory material is laid out, the reaction tubes 3 provided in the heating space S are exposed to an external space via the penetration part 5 formed in a ceiling part 4 of the metallic casing 2. In the penetration part 5, individual penetration holes 6 into which the respective reaction tubes 3 are individually inserted are formed in the heat resistant layer 1, a fire-proof adiabatic material 7 is filled between an interior of each individual penetration hole 6 and each reaction tube 3, and a stepped part 8 receiving the fire-proof adiabatic material 7 from below is formed in each individual penetration hole 6.;COPYRIGHT: (C)2015,JPO&INPIT