CN201866954U - Solar flat plate air collector - Google Patents

Abstract

A solar flat air heat collector in the field of solar energy technology, comprising: a thermal insulation base plate, a transparent cover plate, a heat absorption plate, several T-shaped metal spoilers, air inlets and air outlets, wherein: the thermal insulation base plate is arranged on the heat absorption plate The lower part is sealed and connected with the heat absorbing plate. The transparent cover is set on the upper part of the heat absorbing plate and is sealed and connected with the heat absorbing plate. The T-shaped metal spoiler is welded on the heat absorbing plate and is opposite to the heat preservation bottom plate. One end of the base plate, and the air outlet is arranged at the other end of the thermal insulation base plate. The utility model not only has the advantages of small heat loss of the heat collector, high heat transfer efficiency of the heat collector, high performance of the heat collector and high air outlet temperature, but also has the advantages of simple structure and low metal consumption.

Description

Solar Flat Air Heater

technical field

The utility model relates to a device in the technical field of solar energy, in particular to a solar panel air heat collector.

Background technique

When traditional energy sources such as electricity, coal, and oil are running out frequently, and environmental pollution is becoming more and more serious, energy and environmental issues have increasingly become bottlenecks restricting the development of the international society and economy. Solar energy, as a clean energy source and an inexhaustible renewable energy source, has attracted more and more attention. Compared with hot water collectors, air collectors have no danger of corrosion, leakage, and freezing, and at the same time greatly reduce weight and reduce costs. Solar air collectors can also be widely used in building heating. Heating and drying are required in industry and agriculture. occasions.

After searching the literature of the prior art, it is found that the Chinese patent application number is: 200720175132.3, which discloses a plate-type solar air heat collector, including: a thermal insulation base plate, a transparent cover, a U-shaped connecting pipe, a heat-absorbing plate, a pump body, Air inlet and air outlet. Although this technology increases the flow of air in the heat collector, the small cross-sectional area of the air passage leads to insufficient heat exchange, and greatly increases the metal consumption. The device becomes more complicated, resulting in low performance of the heat collector and system processing. It is more difficult.

Utility model content

The purpose of the utility model is to overcome the above-mentioned deficiencies of the prior art and provide a solar panel air heat collector. The utility model has high heat collection efficiency, high outlet air temperature, and can effectively reduce heat loss of the heat collector.

The utility model is achieved through the following technical solutions:

The utility model comprises: a thermal insulation base plate, a transparent cover plate, a heat-absorbing plate, a plurality of T-shaped metal spoilers, an air inlet and an air outlet, wherein: the thermal insulation base plate is arranged at the lower part of the heat-absorbing plate and is sealed and connected with the heat-absorbing plate, transparent The cover plate is set on the upper part of the heat-absorbing plate and is sealed with the heat-absorbing plate. The T-shaped metal spoiler is welded on the heat-absorbing plate and is opposite to the heat-insulating bottom plate. The air inlet is set at one end of the heat-insulating bottom plate, and the air outlet is set at the heat-insulating bottom plate. the other end.

The heat-absorbing plate is an integral plate-frame type, and it and the frame of the heat collector are manufactured at one time by a mold to form an integral structure.

The outer layer of the heat absorbing plate is coated with a selective absorbing coating.

The T-shaped metal spoiler is wave-shaped.

The heat absorbing plate and the heat insulating bottom plate form a serpentine channel.

The heat absorbing plate and the transparent cover form a transparent cavity.

Compared with the prior art, the beneficial effect of the utility model is: adopting the technology that the heat-absorbing plate and the frame are manufactured at one time by using a mold, which effectively reduces the contact thermal resistance, improves the heat transfer efficiency, and can also reduce the The heat loss of the collector; at the same time, T-shaped metal spoilers are welded on the back of the overall plate and frame heat absorbing plate to divide the air flow channel into serpentine shapes, which increases the flow of air in the collector and can increase the air temperature at the outlet of the collector ; The T-shaped metal spoiler design adopts a wavy shape and high thermal conductivity. As the side fins of the air flow channel of the overall plate and frame heat absorbing plate, it increases the convective heat transfer coefficient of the air side and can effectively improve the efficiency of the collector. Combined with the structural design of the utility model, it not only has the advantages of small heat loss of the heat collector, high heat transfer efficiency of the heat collector, high performance of the heat collector and high air outlet temperature, but also has the advantages of simple structure and low metal consumption.

Description of drawings

Fig. 1 is the structural representation of the utility model;

Fig. 2 is A-A sectional view shown in Fig. 1;

Fig. 3 is the B-B sectional view shown in Fig. 1;

Among them: 1-insulation bottom plate, 2-air inlet, 3-air outlet, 4-T-shaped metal spoiler, 5-transparent cover, 6-heat-absorbing plate, 7-serpentine channel, 8-transparent cavity.

Detailed ways

Below in conjunction with accompanying drawing the embodiment of the present utility model is described in detail: present embodiment is carried out under the premise of technical solution of the present utility model, has provided detailed embodiment and concrete operation process, but protection scope of the present utility model It is not limited to the following examples.

Example

As shown in Fig. 1, Fig. 2 and Fig. 3, this embodiment includes: a thermal insulation base plate 1, a transparent cover plate 5, a heat absorbing plate 6, 17 T-shaped metal spoilers 4, an air inlet 2 and an air outlet 3, wherein : The thermal insulation base plate 1 is arranged on the lower part of the heat absorbing plate 6 and is sealed and connected with the heat absorbing plate 6, the transparent cover plate 5 is arranged on the upper part of the heat absorbing plate 6 and is sealed and connected with the heat absorbing plate 6, and the T-shaped metal spoiler 4 is welded On the heat absorbing plate 6 and opposite to the heat preservation bottom plate 1 , the air inlet 2 is arranged at one end of the heat preservation bottom plate 1 , and the air outlet 3 is arranged at the other end of the heat preservation bottom plate 1 .

The heat-absorbing plate 6 is an integral plate-frame type, and it and the frame of the heat collector are manufactured by a mold at one time to form an integral structure.

The outer layer of the heat absorbing plate 6 is coated with a selective absorbing coating.

The T-shaped metal spoiler 4 is corrugated and has a high thermal conductivity.

The heat-absorbing plate 6 and the heat-insulating bottom plate 1 form a serpentine channel 7 .

The heat absorbing plate 6 and the transparent cover plate 5 form a transparent cavity 8 .

The transparent cover plate 5 is made of borosilicate glass.

The working process of this embodiment: air enters from the air inlet 2, deflects through the serpentine channel 7 formed by the T-shaped metal spoiler 4 and the heat preservation bottom plate 1, and folds the folded air under the action of the sunlight heat absorbed by the heat absorbing plate 6. The flowing air is heated and flows out through the air outlet 3, and the energy is delivered to the required place through the power device outside the heat collector.

This embodiment adopts a plate-and-frame overall structure and a T-shaped metal spoiler 4 to reduce the heat transfer resistance while increasing the heat exchange area and air flow, effectively improving the efficiency of the heat collector. In the heat collector of this embodiment, when the temperature of the air outlet 3 is 65° C., the heat transfer factor can reach 0.81.

Claims (5)

1. A solar panel air heat collector, comprising: thermal insulation base plate, transparent cover plate, heat absorbing plate, air inlet and air outlet, it is characterized in that, also includes: some T-shaped metal spoilers, wherein: thermal insulation base plate is set The lower part of the heat absorbing plate is sealed and connected with the heat absorbing plate, the transparent cover is arranged on the upper part of the heat absorbing plate and is sealed and connected with the heat absorbing plate, the T-shaped metal spoiler is welded on the heat absorbing plate and is opposite to the heat preservation bottom plate, The air inlet is arranged at one end of the heat preservation bottom plate, and the air outlet is arranged at the other end of the heat insulation bottom plate. 2. The solar panel air heat collector according to claim 1, characterized in that, the heat absorbing plate is an integral plate and frame type. 3. The solar panel air heat collector according to claim 1, wherein the T-shaped metal spoiler is wave-shaped. 4. The solar panel air heat collector according to claim 1, characterized in that, the heat absorbing plate and the heat insulating bottom plate form a serpentine channel. 5. The solar panel air heat collector according to claim 1, wherein the heat absorbing plate and the transparent cover plate form a transparent cavity.

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