| 摘要 |
PURPOSE:To heighten heat exchanging efficiency and cleaning effectiveness inside of tubules by providing guide members on the inside walls of cooling tubules for the purpose of giving revolution to the flowing coolant. CONSTITUTION:On the inside walls of a plurality of cooling tubule 2' which are established penetrating thru the side wall of a condenser 1 with equal intervals horizontally, spiral protrusions are established as a unitary body. By this construction, coolant W to be supplied from the water chamber 3 located at the entrance of the condenser circulates inside of the tubules with revolving movement, thereby, there observed no such phenomenon as the heat exchanging effectiveness at the top side and the bottom side differs each other, and the heat exchanging effectiveness is hightened. In addition, because of the revolving movement of the coolant inside of the tubules, pushing force of coolant against the tubule wall is generated which makes the attaching of duckweed and microorganism on the wall difficult, and even if those substances are adhered, they are easily scraped off by the force of the revolving coolant. |
