| 摘要 |
PURPOSE:To prevent the scattering of water to the surroundings when air current is produced, by arranging heat exchanger tubes to extend substantially in a vertical direction, forming on the surface of the heat exchanger tubes many projections which extend along the axes of the tubes and are separated from each other by grooves formed therebetween, and thereby forming uniform water film over the surface of the heat exchanger tubes. CONSTITUTION:Transformer oil in a transformer 5 serving as a heat source is carried to the inside of heat exchanger tubes 1 of a cooler by means of a pump 6. On the other hand, water to be sprayed is drawn up from a water tank 10 by a pump 11 and carried to a water tray 8. Water to be sprayed, thus collected in the water tray 8, is sprayed to the heat exchanger tubes 1 through spaces formed by holes formed in the bottom plate of the water tray 8, and fins 13 and grooves 14 of the tubes 1. Since, with such an arrangement, the fins 13 function as air-flow intercepting walls when air current is produced, water passing through the grooves 14 of the tubes 1 is protected against air flow, so that water flow is made smooth and scattering of water to the surroundings can be prevented. |
