REACTOR EXCHANGER TUBES BAIONNETTES AND A TUBE OF SMOKE SUSPENDED TO THE SUPERIOR REACTOR OF THE REACTOR

摘要

The reactor exchanger comprises a cylindrical shell (1) closed by a vaulted ceiling (2) and a lower bottom (3). The set of shell, lower bottom and vaulted ceiling are coated with a refractory insulation coating. The shell encloses bayonet tubes parallel to the vertical axis extending from the bottom of the shell until the vaulted ceiling, within which the reactional fluid flows. Each bayonet tube is surrounded along the entire length of smoke tubes. The inlet and outlet of each bayonet tube extends outside the reactor beyond the vaulted ceiling. The reactor exchanger comprises a cylindrical shell (1) closed by a vaulted ceiling (2) and a lower bottom (3). The set of shell, lower bottom and vaulted ceiling are coated with a refractory insulation coating. The shell encloses bayonet tubes parallel to the vertical axis extending from the bottom of the shell until the vaulted ceiling, within which the reactional fluid flows. Each bayonet tube is surrounded along the entire length of smoke tubes. The inlet and outlet of each bayonet tube extends outside the reactor beyond the vaulted ceiling. The hot gases are generated outside the reactor, introduced inside the shell with an opening in the lower bottom, and then enter in the smoke tubes with drilled holes for admission to their walls and leave the smoke tubes by discharge openings arranged at its top and through a side opening. Each bayonet tube and the smoke tube are suspended from the vaulted ceiling of the heat exchanger reactor by a system of clamps. The spacing between each bayonet tube, or center to center distance is 2-5 times the inside diameter of outer tube. Each smoke tube is divided into an upper ceramic metal and a lower ceramic metal. A refractory brick arch is used for covering the entire section of the heat exchanger reactor, and is located at the junction between the upper and lower ceramic metal parts of the fire tubes allowing the passage of the smoke tubes. A sealing plate is located at the top of the heat exchanger reactor tubes and attached to the smoke tube. The smoke tubes are fitted in the lower part of the openings located below the level of the shell and in their upper part with drain holes located above the sealing plate. The density of the bayonet tube is 2-12 tubes/m 2section of the reactor. The sealing plate has number of folds to ensure its own thermal expansion. Independent claims are included for: (1) a process for steam reforming a hydrocarbon fraction using a heat exchanger reactor; and (2) a process for assembling the heat exchanger reactor.