Reduced pressure heat treating device

Details Reduced pressure heat treating device Reduced pressure heat treating device

F - Mech Eng,Light,Heat,Weapons

28

C

F28C 3/02 (2006.01) B01J 19/00 (2006.01) F28F 27/00 (2006.01)

Patent

CA 2065507

A heat treating device for use in chemical and food industries, including a heat exchanger of jacket type, for example, which surrounds a reaction vessel, wherein heat media such as steam and water are fed to the heat exchanger and also sucked by sucking means such as an ejector to put the interior of the heat exchanger in a reduced pressure state, whereby effecting heat treatment at relatively low temperature below 100°C, for example, the improvement of which is to prevent variation of the reduced pressure level in the heat exchanger for keeping stability of treating temperature. The improvement is attained by connecting another sucking means to the upper portion of the heat exchanger to suck vapor in the upper portion of the heat exchanger aside from the first-mentioned ejector which is connec- ted to the lower portion of the heat exchanger.

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