RU2483533C1 - Solar wax melter with concentrator - Google Patents

Abstract

FIELD: agriculture.

SUBSTANCE: invention is related to bee keeping. The proposed wax melter comprises a metal case 1 for honeycomb frames coated with a black dye for absorption of solar radiation and a vacuumised multiple glass pane 2 for heat insulation, two halves of parabolic cylindrical reflectors 3-6, arranged symmetrically relative to the vertical plane, to increase area of solar radiation reflection and to increase coefficient of its usage. Focal planes f₁ and f₂, F₁ and F₂ of parabolic cylindrical reflectors 3-6 are matched with planes of the solar wax melter.

EFFECT: invention provides for increased concentration of solar radiation at a bottom and side surfaces of a wax melter.

2 cl, 2 dwg

Description

Application: in agriculture, in particular in beekeeping.

The essence of the invention: represents two halves of parabolic cylindrical reflectors symmetrically located relative to the vertical plane, the focal planes of which are the planes of the solar wax refinery, representing a sealed metal container with honeycomb frames.

EFFECT: effective heating of the melted wax mass by concentrated solar radiation is achieved with thermal insulation of the heated mass insulated by a transparent heat insulator and the placement of solar wax reflow planes in the focal areas of the mirror reflectors.

The well-known concentrator solar wax refinery, RF patent No. 72603, presents a complex structure using a transparent thermal insulator that is also difficult to manufacture.

RF patent No. 2338128 represents a structurally complex manufacturing technology. The solar radiation concentrator of the patent is presented in the form of an axisymmetric annular toroidal mirror reflector.

In the proposed device, these disadvantages are eliminated. The reflecting surfaces of the concentrator are two halves of parabolic cylindrical mirror reflectors located symmetrically with respect to the vertical plane, and their focal planes are aligned with the lateral planes and the bottom of the solar wax refinery - the receiver of solar radiation energy. This design has a large concentration coefficient of solar radiation at the bottom and side surfaces of the solar wax refinery.

Figure 1 shows: 1 - the metal case of the solar wax refinery is coated with black paint to exclude the possibility of reflection of concentrated solar radiation, the dimensions of the case are 1000 * 1000 * 1000 mm. In such a case, divided internally into two horizontal halves, 160 honeycomb frames 450 * 300 mm in size freely fit. Outside, the housing is covered with a transparent evacuated double-glazed window 2 for thermal insulation from surrounding air currents. A vacuum glass unit with a thickness of 6.5 mm with a vacuum of 10 ^-3 - 10 ^-4 mm Hg creates thermal insulation by heating the sealed volume of the wax mass from the surrounding air mass.

The solar radiation concentrator consists of two halves of parabolic cylindrical mirror reflectors symmetrically located relative to the vertical plane 3 and 5, 4 and 6. Using parabolic cylindrical mirror surfaces symmetrically located relative to the vertical plane, the solar radiation reflection area is increased with an increase in the solar radiation utilization coefficient. Parabolic cylindrical reflectors 3 and 4 have focal horizontal planes f ₁ and f ₂ representing the surface of the plane of the bottom of the solar wax refinery. Parabolic cylindrical reflectors 5 and 6 have focal vertical planes F ₁ and F ₂ representing the surface of the planes of the side walls of the solar wax refinery. Thus, the surface of the bottom and side walls of the solar wax refinery - the receiver of solar radiation are located in the focal planes of the parabolic cylindrical reflectors of solar radiation. This design allows you to increase the utilization of the reflection of solar radiation. Direct sun rays fall on the ceiling surface of the solar wax refinery. Inside the hub, the arrows show the course of the reflecting rays L ₁ and L ₂ . The described design provides efficient heating. After loading with honeycomb frames, water is poured into the body of the solar wax refinery. The water level in the casing (Figure 2) is set at the level of the hole 8 for discharging melted wax (a discharge tube with a stopper at the end for sealing is not shown in the drawing), such structural tightness of the device converts the energy of solar radiation into thermal energy in a closed volume of a solar wax refinery . 9 - horizontal mesh partitions for filtering melted wax debris. 7 - honeycomb frames.

At noon in central Russia with an aperture angle of 70 degrees, the received power of solar radiation (Figure 1) will be equal to:

The area of heating of the heat sink S _load. for a solar wax refinery with a concentrator will be

S _load = 2S _side + S _days ,

where S _side is the lateral area;

S _days - bottom area.

Concentrator surface area

S _conc. = 2 (S _L + S ₁ ),

where S _L is the area of one half of the larger parabolic cylindrical reflector;

S ₁ - the area of one half of a small parabolic cylindrical reflector.

Solar Concentration Factor

K = S _conc / S _load

Outgoing heat output from concentrators

P _t. = E _s * η _opt * S _conc. ,

where Ec is the average power of solar radiation per square meter. meter of land;

η _opt. - the utilization of solar radiation, equal to 0.7.

The received power by the receiver, taking into account the coefficient of the hub

P _ave. = E _{s *} η _opt * S _conc * K + E _s * η _opt * S _ceiling

where S _ceiling is the ceiling area.

The peak thermal power of a solar wax refinery with a concentrator will be 12.6 kW.

The proposed solar wax refinery with a concentrator is designed for use on beekeeping farms. It can also be used with minor changes in the field for the temperature treatment of agricultural products and items for various purposes.

Patent studies and analysis of the claimed device allow us to conclude that the set of essential features given in the formula is not known in agriculture, in particular in beekeeping. Therefore, the claimed invention meets the criterion of "novelty."

Claims (2)

1. A solar wax refinery with a concentrator, which is a device with a metal case for honeycomb frames, coated with black paint for absorbing solar radiation, externally coated with a vacuum glass for thermal insulation, including two halves of parabolic cylindrical reflectors symmetrically located relative to the vertical plane to increase the reflection area of solar radiation and increase coefficient of its use, characterized in that the focal plane of parabolic cylindrical about tracers combined with the planes of the solar wax refinery. 2. The solar wax refinery according to claim 1, characterized in that the body of the solar wax refinery is separated by horizontal mesh partitions to filter the melted wax debris.

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