| 摘要 |
PURPOSE:To make it possible to manufacture a heat exchange in a short time and at a low cost which is easy to inspect for leakage, replace the plate, and install a plug, etc., by providing at the same position of a plate an open section as an inlet and outlet of a fluid on one side and welding together the open sections of the plates in adjacent stages. CONSTITUTION:Each plate unit is stacked so as to connect its hole 4 with other holes 4 of other plate units to constitute stages S1, S2,... of a heat exchanger. The inner circumferences 5 of the holes 4 of the stacked plates of adjacent stages are welded in the inner bores from the insides of the holes 4 and the adjacent plates 1, 1' of respective stages are mutually connected to connect respective plates units. The inlet 6 of a fluid A is opened at a plate 1 of the uppermost stage plate unit, and the fluid A enters from an inlet nozzle 6, passes though a pierced hole 4 and flows in the fashion of wave in respective plate units. On the other hand a fluid B flows almost at right angle to this and between plates 1 and 1' of adjacent stages to carry out heat exchanging. By connecting mutually the open sections of the plates of adjacent stages it is possible to surely manufacture in a short time and at a low cost a heat exchanger of plate type and welding type. |
