Groove type photo-thermal power generation tracking light source device based on photosensitive sensors

Abstract

The invention discloses a groove type photo-thermal power generation tracking light source device based on photosensitive sensors. A group of photosensitive sensors are installed on a parabolic reflector, and the arrangement direction of the photosensitive sensors is perpendicular to the extension direction of a heat collecting tube. When the vertical angle of sunlight deviates from the normal direction of the reflector, the shadow of the heat collecting tube is projected to an upper sensor or a lower sensor in a group of photosensitive sensors on the reflector, and a controller judges the vertical angle of the light source relative to the reflector according to the illumination intensity received by each photosensitive sensor in real time and makes a corresponding instruction. A two-way adjusting motor rotates forwards or backwards to drive the reflector to rotate up and down until the shadow of the heat collecting tube is projected to the photosensitive sensor in the middle again. Through the adjustment, condensed light formed by sunlight reflected by the reflector is always gathered on a heat absorption tube and converted into heat, and maximization of the photoelectric conversion efficiency is achieved.

Description

technical field [0001] The invention relates to a solar photothermal power generation tracking light source device, in particular to a trough photothermal power generation tracking light source device based on a photosensitive sensor. Background technique [0002] Trough solar thermal power generation is currently the most mature form of solar thermal power generation. More than half of the world's operating solar thermal power station projects use trough technology. Because the sun's irradiation angle changes with time and seasons, the parabolic reflector in the trough-type photothermal power generation equipment also needs to be constantly adjusted to track the light source, so that the concentrated light formed by the reflector's reflected sunlight is always irradiated on the heat collector tube to do work. generate electricity. The existing trough-type photothermal power generation equipment adopts a timing tracking light source system. The longitude and latitude of the...

AI Technical Summary

Problems solved by technology

[0003] In order to overcome the shortcomings of the existing timing-type trough-type photothermal power generation tracking light source device that requires complicated initialization settings and poor versatility, the present invention provides a trough-type photothermal power generation tracking light source device based on a photosensitive sensor. A group of photosensitive sensors are installed on the mirror, and multiple photosensitive sensors combined with the controller are used to detect the angle of the reflector relative to the light source in real time, and adjust the vertical orientation of the reflector in real time, so that the concentrated light formed by the reflection of sunlight from the reflector is always irradiated on the heat collecting tube

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