SOLAR RADIATION CONCENTRATOR (VERSIONS) Russian patent published in 2013 - IPC G02B5/126 G02B5/132 F24J2/06 F24J2/52 

FIELD: physics.

SUBSTANCE: in a solar radiation concentrator according to the first version, having a gas-filled chamber, the chamber is in form of a flexible casing, wherein part of the chamber casing is transparent; the inside of the chamber is divided by a flexible partition wall; according to the invention, the concentrator has a bearing frame mounted inside the chamber; the inner surface of the chamber casing is connected to the bearing frame along its periphery; one surface of the flexible partition wall is reflecting and faces the transparent part of the chamber casing; between the flexible partition wall from the rear side of the mirror surface and the chamber there is a frame in form of threads linking the chamber casing with the flexible partition wall; wherein the points where the threads are joined to the flexible partition wall and the chamber casing are distributed on the surface of the casing and the partition wall; the length of the threads at different areas of said surfaces is determined by the required shape of the mirror surface; there is a radiation detector inside the gas-filled chamber. In the solar radiation concentrator according to the second version, having a gas-filled chamber, the chamber is in form of a flexible casing, wherein part of the chamber casing is transparent; the inside of the chamber is divided into two airtight cavities by a first flexible partition wall; according to the invention, the concentrator has a bearing frame mounted inside the chamber; the chamber casing is tightly connected to the bearing frame along its periphery; there is a second flexible partition wall along the flexible partition wall; one surface of the second flexible partition wall is reflecting and faces the transparent part of the chamber casing; the first cavity of the chamber is formed between the transparent part of the chamber casing and the first flexible partition wall. The second flexible partition wall has holes; the second cavity is formed between the other part of the chamber casing and the first flexible partition wall; pressure in the first cavity is higher than that in the second cavity; along the first flexible partition wall there is a stiff net which is attached on the periphery to the bearing frame; on the surface of the second flexible partition wall there are connecting elements which connect the second flexible partition wall to the net and the first flexible partition wall; the net can be stretched when the first flexible partition wall is stretched; and a radiation detector is placed in the first cavity of the chamber.

EFFECT: larger size of the concentrator, improved capability of obtaining and maintaining a given profile shape of the concentrator, possibility of raising said concentrator into top layers of the atmosphere, high reliability of operation of the concentrator.

13 cl, 5 dwg