| 摘要 |
PURPOSE:To obtain an effective heat exchange by a method wherein a gas heated by a heat absorbing device is sent into a bubble generating device which is located in a liquid containing a heat accumulating tank so that a number of bubbles are jetted out into the liquid, thereby bringing the liquid into a direct contact with the bubbles. CONSTITUTION:An appropriate amount of liquid such as water is poured into the heat accumulating tank 1, and the air passing through the heat absorbing device 3 is sent by a circulation pump 4 into the bubble generating device which is located on the bottom of the tank 1, so that a number of bubbles 5 are generated in the liquid in the tank 1. The bubbles, while ascending from the bottom to the water surface, contact directly the water 6 in the tank 1 to exchange heat therebetween. The air rising onto the water surface is sent through a circulation pipe 7 to the device 3, thus circulating between the tank 1 and device 3. According to the present invention, as a circulating heat medium is gaseous, there is no possibility of occurrence of breakdown of the device and liquid leakage due to the freezing of the liquid. Further, as the device 3 permitting the gas to flow only is very light in weight, such a large scale of device 3 as covers the entire house building can be mounted on the building without giving an excessive load on the roof. |
