Structure for a dish-type point-based solar concentration system, and concentration system including said structure

Abstract

The invention relates to a structure for a dish-type point-based concentration system and to a concentration system including said structure, comprising: a sub-structure (10) for anchoring to the ground; a tracking sub-structure (20) mounted on the anchoring sub-structure (10) such that it can rotate about an azimuth axis; a driving sub-structure (30) comprising two coaxial hoops (31) formed by a plurality of assembled stamped segments (33), said hoops (31) being joined by tie rods (32) and the driving sub-structure (30) being capable of zenith rotation in relation to the tracking substructure (20); a supporting sub-structure (50) in the form of a cradle, intended to support a reflective surface (70); and a modular connection sub-structure (40) which is made from stamped elements and secured inside the driving sub-structure (30) and on which the supporting sub-structure (50) is mounted. The aforementioned structure is lighter and easier to assemble.

Description

[0001] purpose of invention [0002] The invention may be included in the field of solar thermal technology, and more particularly, the invention relates to point-based solar concentrating systems of the dish type, particularly, but not necessarily of the dish type, such as Stirling ) or AMTEC disc. Background technique [0003] Dish-type point-based solar concentrating systems, such as those of Stirling dishes, have parabolic concentrators equipped with two-axis tracking to reflect solar radiation incident on the surface towards reflective surfaces. A solar receiver is located at the focal point, which is connected to a Stirling engine or microturbine. The receiver absorbs the concentrated solar radiation, causing heating of the fluid, up to the appropriate temperature, so that the energy absorbed by the fluid is used in the engine or microturbine to generate electricity through a generator connected to the shaft of the engine or microturbine. [0004] There are other dish-...

AI Technical Summary

Problems solved by technology

[0017] In summary, has the following disadvantages: heavy and complex structure, which makes the manufacture of the structure more expensive and complicated, as well as the transportation, assembly and maintenance of the parts that form it; inaccurate foundation, which is transferred to the operation of the structure; high stress concentrations ; and lack of accuracy in focusing when radiant spotlight is focused on the focal point

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