PURPOSE: To increase heat-transmitting capacity of a plate fin type heat exchanger and contrive to reduce the size of the heat exchanger, by a method wherein plate fins are arranged at regular intervals to form passages, and a turbulence-accelerating body is provided in each of the passages.
CONSTITUTION: A corrugated plate 1 so formed as to obtain an appropriate angle at bent parts is clamped between parition plates 2, 3 so that the passages are formed at each ridge of the corrugated plate 1 to constitute a heat-transmitting body, and a twisted plate 4 is provided as a turbulence-accelerating body in each of the passages. Accordingly, the coefficient of heat transfer between a fluid and solid surfaces of the passages can be enhanced by disturbing the flow of the fluid. In addition, when treating the same quantity of heat in the same volume, it is not necessary to enlarge the heat-transmitting area per unit volume, and accordingly, the heat-transmitting capacity of the heat exchanger can be enhanced, and it can be contrived to reduce the size of the heat exchanger.
NAKADA TETSUROU
NIKAI ISAO
OOHORI KUNIO
| JPS56168096A | 1981-12-24 |
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