Complex-curved horizontal axis tracking type solar thermal collector

Abstract

The invention discloses a complex-curved horizontal axis tracking type solar thermal collector. The complex-curved horizontal axis tracking type solar thermal collector comprises an involute surface reflecting mirror, a cold water pipe, a vacuum pipe support, a parabolic reflecting mirror, a rotating handle, a fixing support, a positioning nut, a positioning bolt, a deep groove ball bearing, a vacuum pipe, a main rotating shaft, a reflecting mirror support and a hot water pipe, wherein the involute surface reflecting mirror is mounted on the vacuum pipe; the cold water pipe and the hot water pipe are correspondingly mounted at two ends of the vacuum pipe which is mounted on the vacuum pipe support; the vacuum pipe support is mounted on the main rotating shaft; the parabolic reflecting mirror is mounted on the main rotating shaft through the reflecting mirror support; the rotating handle is mounted at one end of the main rotating shaft; the main rotating shaft is mounted on the fixing support through the deep groove ball bearing; and the rotating handle is fixed to the fixing support through the positioning nut and the positioning bolt. With the adoption of the complex-curved horizontal axis tracking type solar thermal collector, the light collecting ratio of the parabolic reflecting mirror can be obviously increased, so that the thermal collecting efficiency and the energy massof the thermal collector can be effectively improved.

Description

technical field [0001] The invention relates to a solar heat collector, in particular to a compound curved surface horizontal axis tracking solar heat collector. Background technique [0002] Due to the existence of the solar radial angle (that is, the maximum angle between the rays emitted by various parts of the sun received by any point on the ground), the existing parabolic trough solar collectors need a larger diameter of the vacuum tube to converge the oblique The diameter of the vacuum tube of the parabolic trough solar collector has a positive relationship with the lighting area of ​​the parabolic reflector, and a larger diameter of the vacuum tube will lead to a significant decrease in the concentration ratio of the solar collector, which seriously affects the heat collection. collector efficiency and energy quality. Contents of the invention [0003] Aiming at the above-mentioned problems and defects in the prior art, the object of the present invention is to pr...

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Problems solved by technology

[0002] Due to the existence of the solar radial angle (that is, the maximum angle between the rays emitted by various parts of the sun received by any point on the ground), the existing parabolic trough solar collectors need a larger diameter of the vacuum tube to converge the oblique The diameter of the vacuum tube of the parabolic trough solar collector has a positive relationship with the lighting area of ​​the parabolic reflector, and a larger diameter of the vacuum tube will lead to a significant decrease in the concentration ratio of the solar collector, which seriously affects the heat collection. Collector efficiency and energy quality

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