| 摘要 |
PURPOSE:To improve heat exchanging characteristic, in the natural circulating heat exchanger for supplying hot-water, by a method wherein heat exchange is effected between a fluid, flowing through the communicating openings of a plurality of annular heat transmitting fins between a fluid introducing tube and an inner tube, and another fluid, between the annular heat transmitting fins of an outer tube. CONSTITUTION:A heating fluid passes through an introducing tube 5 from an inflow part 8, passes through the communicating opening 6 of the annular fin 4 at one end 7, then, passes sequentially through the communicating openings 6 of a plurality of annular fins 4 under generating eddy current and promoting heat transmission, and flows out of a flow out part 9. On the other hand, water to be heated in a heat storage tank 11 is heated by the first annular heat transmitting fin 1, provided so as to be connected to the second annular heat transmitting fin 4 on the surface of the outer tube 2, and the temperature thereof is increased, thereafter, is discharged from a hot-water supplying port 13 by natural convection. Thus, the heat transmitting rate is increased by the eddy current, the device may be miniaturized by expanding a heat transmitting area by the inner and outer annular fins and the structural body of the device may be reinforced by a double wall tube, consisting of the inner and outer tubes 2, 3, and the annular fins. |
