Tubular falling film evaporator
A falling film evaporator, tube-type technology, applied in vertical tube evaporators, evaporation, chemical instruments and methods, etc., can solve the problem of large radial damping of steam and heat exchange tubes, low efficiency of tube-type falling film evaporators, removal The problem of incomplete vapor-liquid separation of the bubbler can be solved, so as to reduce the processing cost, strengthen the rigidity, and facilitate maintenance and replacement.
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[0027] Attached figure 1 The first embodiment of the present invention is given, in which the upper and lower tube plates 25 and 9 are formed by forging, and after heat treatment, they are processed by drilling and other processes. After being erected, they are combined with the central circulation tube 2 according to the design requirements. Butt welding. The assembly of the upper and lower tube plates 25, 9 and the central circulation tube 2, the stripping drum 18, as well as the heat exchange tubes 16, the baffles 17 and other components are assembled into a heat exchange tube bundle. The heat exchange tube bundle is assembled and welded with the upper tube box 20, the heating chamber shell 27, the separation chamber shell 10, the cones 12, 14, and the lower cone 4 of the separation chamber to form the whole equipment. Among them, the contact parts of the nozzle of the heat exchange tube 16 and the upper and lower tube plates 25 and 9 are tightly connected by expansion, so t...
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