Hisaka Works, Ltd.

Kenzo Masutani

Hiroyuki Sumitomo

Akira Horiguchi

Yoshiharu Sakai

Ken'ichi Yamada

Masaaki Ishikura

Yasuo Saito

Fried food producing method and apparatus therefor

Thin film flow-down type concentrating apparatus

Thin film down flow type concentrator

A plate type evaporator comprising a plurality of vertically extending plate elements assembled face-to-face to define therebetween alternate channels for a heating medium and for a liquid to be evaporated. In order to accelerate the nuclear boiling of the liquid in the liquid channels, the heat transfer surface of each plate element has a plurality of vertically extending transversely spaced ridges projecting toward the associated liquid channel, such ridges being in contact with the heat transfer surface of the opposed plate element to provide areas of contact assisting in the evolution of vapor bubbles and divide the liquid channel into narrow sections assisting in the generation of vapor, such sections also assuring that even in deeper places in the liquid channel, vapor bubbles will be generated without yielding to the liquid pressure; alternatively, each plate element has a porous layer formed on its heat transfer surface facing the liquid channel. These heat transfer constructions permit attainment of even higher boiling heat transfer if the liquid in the liquid channels is caused to circulate.

Plate type evaporator

A plate type evaporator comprising a plurality of vertically extending plate elements assembled face-to-face to define therebetween alternate channels for a heating medium and for a liquid to be evaporated. The plate elements have porous layers formed on their opposed heat transfer surfaces functioning as the channels for the liquid to be evaporated. The porous layers are utilized as nuclear boiling accelerating members to improve the capability of evaporating liquid on the boiling heat transfer surfaces.

A structure of fluid condensing and heat conducting surface of the condenser characterized in that completely recessed grooves for collecting fluid are provided on said surface integrally therewith, wherein the distance between the centers of radii of rounded corners of said groove is made less than 3 mm.

Structure of fluid condensing and heat conducting surface of condenser

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Osaka, Japan

Kenzo Masutani