SU1231332A1 - Solar plant - Google Patents

Description

The invention relates to solar technology, in particular to solar installations for high-temperature heating of a heat carrier by a concentrated flux of solar radiation.

The aim of the invention is to reduce the laboriousness of manufacture and the mass of the solar system by eliminating lens-type optical elements from its construction.

FIG. Figure 1 shows the optical layout of the solar system; in fig. 2 - its constructive implementation.

The solar station contains a shell 1 (Fig. 1), fixed therein with the formation of a gap 2, a cylindrical body 3 with an optically transparent slit 4 along its forming and internal mirroring surface, having an ellipse-shaped cross section at least in part 5 of the perimeter, and two optically transparent tubes 6, which are hydraulically interconnected and located in focal lines x 7 and 8 of body 3, with the symmetry plane of slit 4 of the latter aligned with focal lines 7 and 8.

The opposite side of the optically transparent slit 4 part 9 of the body 3 is made with a parabola-shaped cross section, with a focal focus with the focal line (focal line 8) of the ellipse far from the slit 4.

The solar plant also contains a distributor 10 (FIG. 2) with a switching handle 11, a pump 12 and pipes 13 connected to customer 14. The gap 2 and solar tube 6 are filled with radiation-absorbing coolant, for example, a silicone fluid.

The multiple reflections of solar radiation in a solar system are limited by the width of the slit 4. The ultimate width of the slit 4 (Fig. 1) is determined geometrically by constructing a focus (focal line 7) intersecting in the slit 4 of the straight line passing respectively through the ends of the small ellipse axis, which, in turn, determines the maximum required size of the parabolic-cylindrical part 9 of body 3.

Solar power plant works as follows.

A parallel beam of solar radiation, passing through the slit 4 (Fig. I) of the housing 3, falls on its parabolic-cylindrical part 9 and reflects it in the direction of the nearby tube 6 located in the focal line 8. The concentrated beam of radiation not absorbed by the coolant passes through the tube 6, is reflected from the elliptical part 5 of the perimeter of the body 3 in the direction of the other tube b located in the focal line 7, and after the second reflection from the elliptical part 5 is sent to the focal line 8 by the focal parabolic-cylindrical cup ti 9 of the housing 3. Otrazivschis the latter, a parallel beam of radiation is directed toward the slot 4 and, depending on its width, or comes out, or further subjected to multipath.

With each reflection from the mirror coating of the housing 3, part of the heat is spent on heating the housing 3 and from it, the heat transfer fluid, which is in the gap 2 between the housing 3 and the shell 1. Distributor 10 allows you to adjust the solar plant operation in different thermal conditions. For this, using the handle 11, the absorbing coolant is directed to different heating zones.

To reach the maximum temperature of the coolant, it is directed by pump 12 and distributor 10 to the gap 2, in which the coolant is preheated due to direct contact with the housing 3. Then the heated absorbing coolant flows through the tubes 6, where it is finally heated by focused radiation, and with using the distributor 10, it is fed through the pipeline 13 to the consumer 14, which closes the coolant circulation circuit.

The solar plant provides a concentration of radiation on the absorbing coolant with utilization of heat losses, reflections, due to the confocality of parts 5 and 9 of the housing 3 mirror-reflecting radiation, which eliminates the use of optical elements of the lens type as the primary concentrator and thereby reduces the weight and labor intensity of production. solar power plants

Editor M. Bandura Order 2325/43

VNIIPI USSR State Committee

for inventions and discoveries

113035, Moscow, Zh-35, Raushsk nab. 4/5

Branch PPP "Patent, Uzhgorod, st. Project, 4

Compiled by P. Shenderovich

Tehred I. Veres Corrector A. Zimokosov

Circulation 649Subscribe

Claims (1)

A solar installation, containing a shell, a cylindrical body fixed to it with a gap to form a gap with an optically transparent slit along its generatrix and an internal mirror surface, having a cross section in the form of an ellipse at least on a part of the perimeter, and two optically transparent tubes hydraulically connected to each other and located in the focal lines of the body, and the plane of symmetry of the slit of the latter is combined with the focal lines, characterized in that, in order to reduce the complexity of manufacturing and the mass of helious tanovki, the opposite part of the optically transparent slit, the body part is made with a cross section in the form of a parabola confocal with the focus of the ellipse farthest from the slit. figure 1