EVAPORATION APPARATUS

摘要

1459154 Evaporators HOOKER CHEMICALS & PLASTICS CORP 16 July 1974 [2 Jan 1974] 31494/74 Heading B1B An integral forced circulation evaporation apparatus comprises an evaporating chamber (5), providing therein a liquid space and a vapor space, a heating zone (3) containing vertically disposed heat exchange tubes (11), and a liquid receiving chamber (1), the evaporating chamber being surmounted in said heating zone in direct communication with the upper ends of said heat exchange tubes, said liquid receiving chamber being surmounted by said heating zone in direct communication with the lower ends of said heat exchange tubes; pump means (9) horizontally disposed within said liquid receiving chamber for the circulation of liquid through said evaporator apparatus, partition means (7) disposed within said liquid receiving chamber so as to form, within said liquid receiving chamber, a first section (15) containing the intake side of said pump means and a second section (17) containing the discharge side of said pump means, said partition means further being positioned such that the lower ends of a portion of the heat exchange tubes are in direct communication with only that section containing the intake side of the pump means and the lower ends of the remaining heat exchange tube having direct communication with only that section containing the discharge side of the pump means, and a second partition means (13) disposed within said evaporating chamber positioned so as to form within said evaporating chamber, a first section in direct communication with the upper ends of those heat exchange tubes whose lower ends are in direct communication with the intake side of the pump means and a second section in direct communication with the upper ends of those heat exchange tubes whose lower ends are in direct communication with the discharge side of the pump means, said second partition means being formed so 'as to prevent liquid flow between said sections in the evaporating chamber at a point immediately adjacent the upper ends of said heat exchange tubes while permitting liquid flow between said sections at a point removed from the upper end of said heat exchange tubes, and further extending only part way up into the evaporating chamber so that it may be covered with liquid in the evaporating chamber when, during use of the apparatus, the evaporating chamber is partly filled with liquid. Other forms of partition construction (e.g. cylinders) are described.