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Two-mirror type solar collecting device and system

A solar heat collection and mirror-type technology, which is applied in the field of solar heat collection devices and systems, can solve the problems of solar energy difficulty, inconvenient grid-connected power generation, and low heat collection efficiency, and achieve the effect of simplifying design and installation and solving the problem of scattered power generation

Inactive Publication Date: 2011-05-25
SHANGHAI NEW IND OPTOELECTRONICS TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, because the collected solar energy is difficult to store and concentrate, if the collected solar energy of each system is not enough, it is difficult to make the Stirling generator with fixed power work, so the heat collection efficiency is not high; Network power generation brings many inconveniences

Method used

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  • Two-mirror type solar collecting device and system
  • Two-mirror type solar collecting device and system
  • Two-mirror type solar collecting device and system

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Embodiment Construction

[0026] The specific embodiments of the present invention will be described below in conjunction with the accompanying drawings.

[0027] Such as figure 1 As shown, in the two-mirror solar heat collection device of the present invention, a light concentrating mechanism including a main reflector 11 and a secondary reflector 12, and a heat collecting tube arranged on the secondary reflection focus of the light concentrating mechanism are provided. 20 by hotspots 21 .

[0028] The main reflector 11 of the light concentrating mechanism is a concave reflector with focusing function, which is supported by a cylindrical mechanical support and transmission mechanism 30 arranged below it. The top of the mechanical support and transmission mechanism 30 is provided with a tracking drive unit 31, which can drive the main reflector 11 to rotate or change the tilt angle under the control of the set system command, so as to realize its tracking of sunlight as it rotates. , so that sunlight...

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Abstract

The invention discloses a two-mirror type solar collecting device and a two-mirror type solar collecting system. The device is provided with a condensing mechanism and a heated point, wherein the condensing mechanism comprises primary and secondary reflectors to track the sun so as to collect photo-thermal energy; the heated point is positioned on a secondary reflecting focus of the condensing mechanism; the position of the heated point is invariable when the condensing mechanism rotates; and the sunlight is collected by the primary reflector, reflected to the secondary reflector, is subjected to secondary reflection by the secondary reflector and focused on the heated point so as to heat a working medium conveyed in a collector tube connected with the heated point. Because the heated point is heated in a concentrated way, high temperature of the working medium can be achieved. The collecting system collects high-temperature media conveyed by a plurality of collector tubes and externally supplies heat or generates power in a unified mode. The primary and secondary reflectors can track the sun along rotation, and the sunlight is transmitted to the primary reflector vertically, so that an effective receiving area is maximized. Because the spatial position of the heated point is invariable when the primary and secondary reflectors track the sun, the design and installation of the collector tubes are simplified.

Description

technical field [0001] The invention relates to a solar heat collecting device and system, in particular to a two-mirror solar heat collecting device which reflects sunlight twice and a heat collecting system composed of it. Background technique [0002] Solar energy is an extremely abundant clean energy source, inexhaustible, and the total amount of solar energy received by the earth every year is more than 10,000 times the total annual energy consumed by the world. Solar thermal power generation technology uses concentrated sunlight to heat a liquid or gas heat transfer working medium, and this part of the heat is converted into mechanical energy and then further converted into electrical energy. Therefore, the solar thermal power generation technology is one of the solar energy utilization technologies with broad application prospects. [0003] At present, there are four mainstream solar thermal power generation technologies: tower type, trough type, Fresnel type and dis...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F24J2/10F24J2/24F24J2/46F24S10/70F24S23/70
CPCY02E10/44
Inventor 缪同群伍志军陈世祥李钊明张声荣李贵涛张中
Owner SHANGHAI NEW IND OPTOELECTRONICS TECH
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