| 摘要 |
<p>PURPOSE:To eliminate dead water zone at the lower part of main body of the hot-water reserving tank and permit to obtain hot-water from any part in the tank by a method wherein a pipe, opened at the lower part of a jacket type heat exchanger and the upper part of the same, is provided in the main body of the hot-water reserving tank so as to be contacted with the same heat exchanger. CONSTITUTION:The pipe 11 for sucking dead water in the bottom of hot-water reserving tank 5 is provided in the same tank 5 so as to be contacted with the inner wall of the tank and the upper end thereof is opened at a place higher than the jacket type heat exchanger 8 while the lower end thereof is opened at a place lower than the same heat exchanger 8. When heat exchange is started, water in the pipe 11 is warmed soon since it is contacted with the heat exchanger 8, thermal expansion is caused therein and obtains buoyancy. Upward stream of the water is generated in the pipe 11 by the buoyancy and the water is sucked up from the dead water zone whereat the lower end of the pipe is opened. Accordingly, warmed water in the upper part of the tank descends with time and the dead water zone at the lower part of the tank 5 is eliminated whereby hot-water may be obtained from any part in the same tank 5.</p> |
