Solar linear multi-mirror zooming and multi-directional tracking system and application

Abstract

The invention discloses a solar linear multi-mirror zooming and multi-directional tracking system and application. In the system, a group of solar optical mirrors consisting of a plurality of reflecting mirrors, a Fresnel mirror, and a plane mirror are adopted; a resolving shaft of each mirror is arranged on a parabola-shaped or arc-shaped device; each solar optical mirror can rotate around the shaft; and the parabola-shaped or arc-shaped device can move, so that the multi-directional tracking that the solar mirror rotates around a starting shaft and the parabola-shaped or arc-shaped device moves is realized. The system is suitable for the comprehensive utilization of the multiple kinds of the solar energy of different scales, particularly photovoltaic generation, thermal power generation, high-temperature steaming, heating, cooking and the like of the solar energy, and the solar energy utilization of different functions can be provided in a system.

Description

technical field [0001] The invention relates to the utilization of solar energy, in particular to the linear tracking in which the focusing and tracking focus of solar energy is a straight line, as well as the array tracking and utilization thereof. Background technique [0002] Solar tracking mainly consists of three types: trough type, tower type and butterfly type. Because the trough type system is one-way tracking, the relative technical difficulty is relatively low. At the same time, due to the solar energy selective coating and vacuum tube technology, it has industrial production in the temperature range of 100-400 degrees. Therefore, it can be mass-produced quickly, and the earliest commercial application in the world is the trough system. [0003] The main tracking method of the trough system in the world is to set a heat exchange tube at the focal line position of the trough system, fill the heat exchange tube with heat transfer oil, and the motor drives the flow of...

AI Technical Summary

Problems solved by technology

In the process of tracking solar energy, the heat transfer oil moves together in the pipe, and the bellows are used at the heat transfer oil pipe and the outflow end to realize the connection between the moving pipe and the non-moving pipe; because the bellows need high temperature resistance and high reliability, etc. Requirements, so it becomes a key component, and at the same time, this kind of connection cannot guarantee the thermal insulation requirements, so the heat loss of the system is very high

[0004] Chinese patent 200710176966 provides a combined tracking system, which can be used in a trough-type and tower-type combined tracking system. The tracking method adopts the method of keeping the focus fixed while the solar mirror system moves. It is mainly set on the ground. Two orbits are used for tracking, and the line-focusing system of the trough system uses its linear axis to be placed parallel to the earth's self-propagation axis, so it can use rotation in one direction to achieve tracking, but this scheme uses rotation on the ground to achieve trough tracking. Obviously, tracking cannot be realized, so the inventor further set pitch tracking in the scheme to make it a two-way tracking, but this tracking method is mainly a tracking system formed by circular movement and pitch movement along a circle, and its limitations It is flexible, inflexible, and requires a certain movement track on the ground, and it occupies a relatively large area.

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