STRUCTURE OF CONNECTING HEAT PIPE WITH INNER PIN SHAPE MANIFOLD IN VACUUM TUBE TYPE SOLAR HEAT COLLECTOR

摘要

PURPOSE: A structure of connecting a hat pipe with a manifold in a solar heat collector is provided to improve heat transfer efficiency through having a maximum heat transfer area and keeping a complete sealing state. CONSTITUTION: To combine a heat pipe with a manifold, a spiral process unit(3) is formed at an outer surface of a front end of a condense portion at the heat pipe. A coil shaped pin(10) is attached at a lower inner circumference of a manifold connecting tool for being conveniently connected to the process unit and increasing contacting area between the heat pipe and the manifold. A filler is attached to an outer circumference of the heat pipe near the process unit for sealing a connect portion of the heat pipe and the manifold. Thus, the process unit and the coil shaped pin are combined for combining the heat pipe and the manifold connecting tool. Then, the heat pipe and the manifold are sealed by a silicone ring(11) located between a small surface(4A) of the filler and an inner surface(13) of the connecting tool. Moreover, a large surface(4B) of the filler and an outer surface(14) of the connecting tool are welded for completing sealing state.