Paraboloid two-level heating solar thermal collector

Abstract

The invention discloses a paraboloid two-level heating solar thermal collector which mainly comprises first-level reflectors, planar mirrors, a vacuum pipe, a cold water pipe, a second-level reflector and a hot water pipe. The first-level reflectors are connected with the planar mirrors connected with the second-level reflector; the axis of the vacuum pipe coincides with the focal line of the second-level reflector (namely a connecting line of focuses of the cross sections of the second-level reflector); and the cold water pipe and the hot water pipe are connected at the two ends of the vacuum pipe correspondingly. According to the paraboloid two-level heating solar thermal collector, water in the vacuum pipe is subjected to two-level heating through solar rays, the high thermal collection temperature and efficiency are obtained, and the paraboloid two-level heating solar thermal collector is especially suitable for warming and heating for areas of villages and the remote mountainous areas.

Description

technical field [0001] The invention relates to a solar heat collector, in particular to a parabolic two-stage heating solar heat collector. Background technique [0002] The working efficiency of existing vacuum tube solar collectors gradually decreases during the process of heating water. At the same time, because the vacuum tubes of traditional concentrating solar collectors are outside the concentrator, the structure is not compact, which affects the aesthetics and greatly Central heating and heating are still not available in most rural and mountainous areas; in view of this, there is an urgent need to design a high-efficiency solar collector suitable for heating and heating in rural and remote mountainous areas. Contents of the invention [0003] In view of the above-mentioned problems and defects in the prior art, the object of the present invention is to provide a parabolic two-stage heating solar heat collector to improve heat collection efficiency and make the he...

AI Technical Summary

Problems solved by technology

[0002] The working efficiency of existing vacuum tube solar collectors gradually decreases during the process of heating water. At the same time, because the vacuum tubes of traditional concentrating solar collectors are outside the concentrator, the structure is not compact, which affects the aesthetics and greatly Central heating and heating are still not available in most rural and mountainous areas; in view of this, there is an urgent need to design a high-efficiency solar collector suitable for heating and heating in rural and remote mountainous areas

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