Dual-axis tracking type photovoltaic or photo-thermal support

Abstract

The invention discloses a dual-axis tracking type photovoltaic or photo-thermal support. The support includes left and right bearing frame arranged at two ends of a longitudinal direction, a flexible cable rack is arranged between corresponding flexible cable rotation units on the left and right bearing frames, the flexible cable rack includes sag cables, first horizontal load cables and second horizontal load cables which are arranged on the front and rear side vertical cable bodies of corresponding rectangular flexible cable frames of the left and right bearing frames from top to bottom; two ends of the sag cables and the first horizontal load cables are fixed to the front and rear side vertical cable bodies of the corresponding rectangular flexible cable frames, and two ends of the second horizontal load cables bypass lifting fixed pulleys on the front and rear side vertical cable bodies of the corresponding rectangular flexible cable frames to be connected with a corresponding lifting driving device; and a plurality of droppers are arranged between the sag cables located on the front and rear side vertical cable bodies of the rectangular flexible cable frames and the first horizontal load cables at intervals along a longitudinal direction. The dual-axis tracking type photovoltaic or photo-thermal support provided by the invention is simple and stable in overall structure, low in cost, and simple and accurate to adjust, and is suitable for engineering popularization and application.

Description

technical field [0001] The invention relates to a photovoltaic or photothermal support, in particular to a dual-axis tracking photovoltaic or photothermal support. Background technique [0002] With the increasingly tense energy supply and global carbon emission restrictions, solar energy, as an inexhaustible clean energy, is expanding its application fields. Solar photovoltaic power generation and solar thermal power generation are the mainstream development directions of solar energy applications. At present, solar photovoltaic power generation and photothermal power generation mostly adopt the method of installing steel frames on the ground to support photovoltaic panels and photothermal tubes. The shortcomings of the steel frame installed on the ground are: 1. It occupies a large area, and the installation of the rigid support has high requirements on the ground conditions, destroying the vegetation on the ground, consuming a large amount of steel, and high cost. 2. Str...

AI Technical Summary

Problems solved by technology

The shortcomings of the steel frame installed on the ground are: 1. It occupies a large area, and the installation of the rigid support has high requirements on the ground conditions, destroying the vegetation on the ground, consuming a large amount of steel, and high cost

2. The fluctuation is strong. During the non-noon period, the protective glass of the front panel of the photovoltaic panel and the photothermal tube reflects the sunlight, which leads to the short power generation time and low efficiency of the photovoltaic panel and the photothermal tube.

3. The tracking system in the existing photovoltaic / photothermal support mostly uses gear transmission structure, push rod connecting rod structure, hydraulic cylinder or bearing, etc. The gear and push rod connecting rod structure are easy to be damaged by the vibration of the support when used in the field. The lubrication requirements of the hydraulic system and bearings are high, the installation and maintenance costs are high, and the service life is short

[0003] Chinese patent CN205336197U discloses a flexible bracket with adjustable inclination angle. The flexible bracket can only realize single-axis tracking, but cannot realize dual-axis tracking, and the power generation efficiency is low; because the flexible bracket drives the adjustable tilt angle fixing device to rotate through the crank connecting rod driving device , the deceleration mechanism and multi-stage connecting rod in the adjustable inclination fixing device are rigidly connected to the photovoltaic platform, and there is interference and impact damage between the wind-induced beating of the flexible steel cable and the movement of the motor, which makes the flexible support unable to work stably and cannot Application in practical engineering

At the same time, the flexible support does not solve the problem of flexible cables sagging caused by the gravity of the flexible cables, photovoltaic panels and photothermal tubes, the problem of jumping and swinging of flexible cables in bad weather, and the problems of steel cables caused by temperature changes in spring, summer, autumn and winter. Structural stability problems caused by thermal expansion and contraction

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