| 摘要 |
PURPOSE:To restrict a reduction in the efficiency of heat exchanging operation as much as possible by a method wherein a group of thermal conducting pipes positioned at the inlet of a heat exchanging fluid and a group of thermal conducting pipes are arranged in a zig-zag form above both groups of thermal conducting pipes are connected in series alternatively. CONSTITUTION:All the thermal conducting pipes in a group 1A of thermal conducting pipes are always kept with heat exchanging fluid (a) which do not perform heat exchanging operation yet and which have a high heat exchanging performance. In turn, the thermal conducting pipes belonging to a group 1B of the thermal conducting pipes show a small degree of heat exchanging operation through the thermal conducting pipes of the group 1A of the thermal conducting pipes position upstream as compared with those positioned downstream of the series of flow passages. That is to say, they come into contact with the more fresh heat exchanging fluid (a), each of a plurality of thermal conducting pipes 1A and 1B may perform the maximum heat exchanging work and then the heat exchanging performance of all the layered type heat exchanger is drastic improved. Since one of a group 1A of the thermal conducting pipes and one of a group 1B of the thermal conducting pipes are alternatively connected, the distribution of temperature in a forward and rearward flowing direction in the heat exchanging fluid (a) is made uniform and then a high efficiency can be attained.
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