| 摘要 |
PURPOSE: A high efficiency solar collector and a boiler are provided to prevent energy losses caused by re-radiations when generating a high-temperature using thermal energy. CONSTITUTION: A high efficiency solar collector and a boiler comprise copper pipes(10), glass tubes(20), circular arc-shaped protection pipes(30), a fixing device(40) and a convex lens(50). The copper pipes transfer the heat to heat medium oil(M1) inside by colleting the heat of sun-lights. A vacuum part is formed between an inner surface of the glass tubes and an outer surface of the copper pipes. An opening(35) of the arc circular arc-shaped protection pipes is formed between an upper and lower front ends and the sun-lights are incident to the copper pipes through the opening. The arc circular arc-shaped protection pipes enclose the glass tubes apart from the opening. A top plate and bottom plate of the fixing device are separated radially from each other, one side of the fixing device supports the arc circular arc-shaped protection pipes and the other side supports the convex lens. The convex lens projects the collected light to the opening.
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