| 摘要 |
PURPOSE:To raise the feeding performance of heat as well as the reliability of a valve mechanism by a method in which a sub-tank is provided on the side of a liquid trap tank, the upper and lower parts of them are connected with a small- diameter tube, and a liquid level sensor is provided in the sub-tank. CONSTITUTION:A sub-tank 14 is joined partly with the side of a liquid trap tank 7 and connected with the tank 7 at the upper and lower parts with small-diameter tubes 15a and 15b. A liquid level sensor 6 is housed in the tank 14 in such a way that a delay of variation in the liquid levels in the tank 14 is occurred in relation to the variation in the liquid level of a working liquid 12 in the tank 7 and the difference between the upper stop liquid level and the lower stop liquid level of the liquid 12 in the tank 7 is made greater. The opening and closing frequency of the valve 10 is reduced according to the amount of heat to be fed, the performance of the heat exchanger is raised, and the disorder of the valve 10 is avoided. Although the liquid level of the liquid 12 in the tank 7 becomes instabilized by the inflow and outflow of the liquid 12, little effects are affected on the tank 14 and stable actions can be obtained. |
