Solar collector with light reflectors

Description:

The invention relates to the field of heliotechnics and can be used in installations for heating the fluid environment.

It is known solar collector with light reflectors, which contains photovoltaic elements of sunlight and wavelength reflectors [1].

The disadvantage of this collector is that the photovoltaic elements generate only electricity for the consumer.

Also known is the solar collector with light reflectors, which encloses a body, a glass canister, a tubular heat exchanger, a thermal insulator and wedge reflectors, located on the left and right sides of the heat exchanger, as well as elements for fixing the heat exchanger to the insulator [2].

The disadvantage of this collector lies in the fact that the installation does not contain systems of accumulation and stabilization of the temperature of the heated fluid environment, as a result, the limited scope.

The problem that the invention solves is the extension of the scope.

The solar collector with light reflectors, according to the invention, removes the disadvantages mentioned above in that it confines a body covered with a glass canvas, on the bottom of which is placed a heat-insulating layer. Inside the body is placed a reflector, which consists of two parts in рапа joined by a semi-cylinder. In the focus of the reflector is located a tubular heat exchanger, fixed by the thermal insulation layer by means of fasteners. Inside the tubular heat exchanger, coaxially with it, a thermal accumulator, consisting of paraffin-filled vessels, is fastened by means of ribbed straps.

The particularities of the invention allow the fluid medium to be heated to 54 ° C paraffin melting temperatures.

The result of the invention consists in extending the scope.

The invention is explained by the drawings in FIG. 1 and 2, representing the proposed installation:

FIG. 1, cross-section;

FIG. 2, top view.

In FIG. 1 arrows indicate solar rays, and in fig. 2 indicates the direction of movement of the heated fluid medium.

The solar collector confines a body 1 covered with a glass can 2, on the bottom of which is placed a heat-insulating layer 3. Inside the body 1 is placed a reflector 6, which consists of two parts up to 6a joined by a semicylinder 6b. In the spotlight of the reflector 6 is located a tubular heat exchanger 4, made of thin sheet and fixed by the insulating layer 3 through the fasteners (clamps and screws) 7 and 8. Inside the tubular heat exchanger 4, coaxially with it, a thermal accumulator 5, consisting of vessels (for example, beer tin cans) filled with paraffin, is secured via ribbed straps 9.

The installation works as follows.

The sunlight (indicated by arrows, fig. 1) passes through the glass cover 2, which covers the body 1, and falls on the surface of the reflector 6 and the tubular heat exchanger 4. The sunlight is reflected from the parts in the wedge 6a and the semicylinder 6b of the reflector 6 and falls on the tubular heat exchanger 4, through which the heated environment (liquid or gaseous) circulates. The heat exchanger 4 is heated almost uniformly from all sides due to the shape of the reflector and the location of the heat exchanger 4 in its focus.

The thermal accumulator 5, whose vessels are maintained by the ribbed clamps 9 coaxially with the heat exchanger 4, receives heat from the heated fluid medium, but only warms up to the paraffin melting temperature. The process of melting the paraffin requires a greater amount of heat than the process of heating it. The consumption of the fluid medium heated by the consumer is calculated in such a way that during the heating of the paraffin from the solar rays in the thermal accumulator 5 the paraffin does not completely melt.

The heat losses through the body 1 are reduced due to the use of the insulating layer 3, of which, by means of the fasteners 7 and 8, the heat exchanger 4 is fixed.

Therefore, the insertion of the thermal accumulator 5 inside the heat exchanger 4, coaxially with it, as well as the making of the reflector 6 of two parts in the bracket 6a joined by a semicylinder 6b and the placement of the heat exchanger 4 in the focus of the reflector 6 allows the thermostabilization to be obtained.