CN203785284U

CN203785284U - Solar thermal collector

Info

Publication number: CN203785284U
Application number: CN201420209004.6U
Authority: CN
Inventors: 余华阳
Original assignee: Individual
Current assignee: Individual
Priority date: 2014-04-19
Filing date: 2014-04-19
Publication date: 2014-08-20
Anticipated expiration: 2024-04-19

Abstract

The utility model discloses a solar thermal collector. The solar thermal collector comprises a thermal absorption panel (1), a flat box (2) and u-shaped grooves (3); wherein the heat absorption panel (1) is a glass panel, in which a plurality of through holes are formed; the thermal absorption panel (1) is sleeved with the flat box (2); ends of the flat box (2) are sealed with the surface of the thermal absorption panel (1); the sealed space is vacuumized; two ends of the heat absorption panel (1) are connected to the interiors of the u-shaped grooves (3); a pipeline is formed between the u-shaped grooves (3) and the thermal absorption panel (1) and is used as a shared pipeline of the lower and upper ends of the thermal absorption panel (1). According to the solar thermal collector, the u-shaped grooves (3) form the shared pipeline, so that the manufacture is easy; the heat absorption panel (1) is connected to the interiors of the u-shaped grooves (3), so that the quantity of a medium stored in the solar thermal collector is minimum, the heat absorption surface is largest, the efficiency is further increased, and the solar thermal collector is thinner, can be mounted on a building framework more conveniently, and can be made into an ultrathin solar wall capable of replacing a filler wall or a glass curtain wall. The solar thermal collector can be better integrated with a building, and the application range of the solar thermal collector is further widened.

Description

A kind of solar thermal collector

Technical field

The utility model is a kind of solar thermal collector, belongs to Application of Solar Energy field.

Background technology

Flat type solar heat collector, is that absorber plate is arranged in insulation half box, covers one deck glass above.Absorber plate adopts the precious metals such as copper aluminium, and cost is too high; The upper surface of absorber plate only has one deck glass, and it is poor to be incubated, and efficiency is low; Glass vacuum pipe heat collector, it is vacuum heat-preserving, leaving water temperature is high, but tube pitch is from greatly, solar energy utilization ratio is too low, all-glass vacuum flat plate collector has overcome the shortcoming of above-mentioned two kinds of heat collectors, has gathered again the advantage of above-mentioned two kinds of heat collectors simultaneously, becomes the Application of Solar Energy conversion equipment that cost minimum efficiency is the highest.But the common stream pipe manufacture difficulty that it has some ozzles is larger; In ozzle, be connected in the through hole of glass plate, just make the aperture of through hole large, the medium reserves of heat collector the inside are large, and while making heat collector work, starting slowly, causes collecting efficiency desirable not enough; Test with vacuum tube, the first day just only has 40 degree by solar energy heating for second day to the conduction oil of 130 degree, and the heat energy in heat collector has just lost substantially.So, reduce to greatest extent the heat transfer medium reserves in heat collector and increase to greatest extent the heat-absorbent surface of medium, be one of research direction further improving solar thermal collector collecting efficiency.

Summary of the invention

The purpose of this utility model, is to provide a kind of cost lower; Start sooner, the thermal efficiency is higher; Be more convenient on metope and building integrated solar heat collector.

Technical scheme: a kind of solar thermal collector, is characterized in that: this heat collector comprises absorber plate, flat box and u shape groove; All parts are made of glass entirely; Absorber plate is the glass plate with some through holes, and absorber plate is longer than flat box, and flat box is enclosed within the outside of absorber plate; Between flat box and absorber plate, there is supporter; The selective absorber coatings of upper surface of absorber plate; The termination of flat box and absorber plate face seal, seal cavity vacuumizes; In the two ends of absorber plate, be connected to u shape groove, the bottom land of u shape groove is spaced a distance apart from the termination of absorber plate, and this distance makes to form pipeline between u shape groove and absorber plate, and this pipeline is the common stream pipe of absorber plate upper/lower terminal, flows altogether and on pipe, has ozzle.

Because be connected to u shape groove in the two ends of absorber plate, so the minimum-value aperture of through hole is just unrestricted on absorber plate, through hole can make oblong aperture, and the height in hole may diminish to 1 millimeter, fewer tens times than the height of 47 millimeters of glass vacuum pipe heat collectors; On the other hand, the hole wall of through hole can accomplish that thickness is less than 2 millimeters, and interval can be greater than 20 millimeters, and like this, dielectric surface just accounts for 90% of heat-absorbent surface; Such heat collector just has minimum heat transfer medium reserves and maximum endotherm area, effectively improves heat absorption efficiency; Meanwhile, the structure ratio of the u shape groove common stream pipe of speaking out of turn is simple, is easier to make, and is also easier to reduce costs; The height of through hole reduces, make the thickness of heat collector reduce again 6 to 7 millimeters, the gross thickness of heat collector is only 13 millimeters like this, not only light but also thin, due to ozzle overleaf, see to be exactly a sheet glass from front, but than glass sound-insulating and heat-insulating, like this, just can install on the steel framework surface of building frame, (steel framework the inside is wire glass) becomes the ultra-thin sun wall that can substitute infilled wall and glass curtain wall, realizes better the integrated of solar energy and building.

Brief description of the drawings

Fig. 1 is the schematic diagram of this heat collector.

Fig. 2 is the parts organigram of this heat collector.

Detailed description of the invention

Below in conjunction with brief description of the drawings detailed description of the invention.The material prescription of this solar thermal collector and technological process have identical or akin place with glass vacuum pipe heat collector.With reference to the Mould Machining figure of solution design absorber plate (1), flat box (2) and u shape groove (3), make mould.Utilizing mould after frit heating and melting, make absorber plate (1), flat box (2) and u shape groove (3); And make coating for selective absorption at the upper surface of absorber plate (1); The length of this coating is less than the length of flat box (2); Absorber plate (1) is for having the glass plate of some through holes, and absorber plate (1) is longer than flat box (2), and flat box (2) is enclosed within the outside of absorber plate (1); Between flat box (2) and absorber plate (1), there is supporter; The termination of flat box (2) and absorber plate (1) face seal, seal cavity vacuumizes; In the two ends of absorber plate (1), be connected to u shape groove (3), the bottom land of u shape groove (3) has a segment distance apart from the termination of absorber plate (1), this distance makes to form pipeline between u shape groove (3) and absorber plate (1), this pipeline is the common stream pipe at the upper and lower two ends of absorber plate (1), flows altogether and on pipe, has ozzle.Draw at the back side that ozzle is heat collector from the side of u shape groove (3), also can draw from the two ends of u shape groove.

The sealing of the termination of flat box (2) and u shape groove (3) and absorber plate (1), all uses glass powder with low melting point welded seal.

After flat box (2) makes, through chemical tempering processing, become safety glass.Also available heat is treated as safety glass.

The pipe that flows altogether being up and down made up of u shape groove (3) and absorber plate (1) is square tube, and the section of square tube is rectangle, and ozzle is circular, and the outer surface of circular ozzle has the spiral shell mosquito being connected with extraneous pipe fitting.

U shape groove (3) and absorber plate (1) are made of the glass that is added with colouring agent.

The bottom land of u shape groove (3) that there is no ozzle is removed and just becomes rectangular circle, the half of rectangular circle is enclosed within the termination of a slice absorber plate (1), second half is enclosed within the termination of another sheet absorber plate (1), just two or two above absorber plate assembly series connection uses.This,, for large area pitched roof or hillside heat collecting field, can save a lot of pipe fittings.

On the surface of u shape groove (3) and the lower surface of absorber plate (1) or flat box (2) apply reflective space adiabatic heat-insulation coating.

Between absorber plate (1) and flat box (2), deposited getter, this getter is in the side of absorber plate (1).

Supporter between flat box (2) and absorber plate (1), is arranged on the outer surface of absorber plate (1) or the inner surface with flat box (2), all integrated with attachment homogeneity, becomes the protrusion of surface of attachment.

Four angles of flat box (2) are respectively provided with installing hole.

Claims

1. a solar thermal collector, is characterized in that: this heat collector comprises absorber plate (1), flat box (2) and u shape groove (3); Absorber plate (1) is for having the glass plate of some through holes, and absorber plate (1) is longer than flat box (2), and flat box (2) is enclosed within the outside of absorber plate (1); Between flat box (2) and absorber plate (1), there is supporter; The selective absorber coatings of upper surface of absorber plate (1); The termination of flat box (2) and absorber plate (1) face seal, seal cavity vacuumizes; In the two ends of absorber plate (1), be connected to u shape groove (3), the bottom land of u shape groove (3) has a segment distance apart from the termination of absorber plate (1), this distance makes to form pipeline between u shape groove (3) and absorber plate (1), this pipeline is the common stream pipe of absorber plate (1) upper/lower terminal, flows altogether and on pipe, has ozzle.

2. a kind of solar thermal collector according to claim 1, is characterized in that: the sealing of the termination of flat box (2) and u shape groove (3) and absorber plate (1), all use glass powder with low melting point welded seal.

3. a kind of solar thermal collector according to claim 1, is characterized in that: after flat box (2) makes, through chemical tempering processing, become safety glass.

4. a kind of solar thermal collector according to claim 1, it is characterized in that: the pipe that flows altogether being up and down made up of u shape groove (3) and absorber plate (1) is square tube, the section of square tube is rectangle, ozzle is circular, and the outer surface of circular ozzle has the spiral shell mosquito being connected with extraneous pipe fitting.

5. a kind of solar thermal collector according to claim 1, is characterized in that: u shape groove (3) and absorber plate (1) are made of the glass that is added with colouring agent.

6. a kind of solar thermal collector according to claim 1, it is characterized in that: the bottom land of u shape groove (3) that there is no ozzle is removed and just becomes rectangular circle, the half of rectangular circle is enclosed within the termination of a slice absorber plate (1), second half is enclosed within the termination of another sheet absorber plate (1), just two or two above absorber plate assembly series connection uses.

7. a kind of solar thermal collector according to claim 1, is characterized in that: on the surface of u shape groove (3) and the lower surface of absorber plate (1) or flat box (2) apply reflective space adiabatic heat-insulation coating.

8. a kind of solar thermal collector according to claim 1, is characterized in that: between absorber plate (1) and flat box (2), deposit getter, this getter is in the side of absorber plate (1).

9. a kind of solar thermal collector according to claim 1, it is characterized in that: the supporter between flat box (2) and absorber plate (1), be arranged on the outer surface of absorber plate (1) or the inner surface with flat box (2), all integrated with attachment homogeneity, become the protrusion of surface of attachment.

10. a kind of solar thermal collector according to claim 1, is characterized in that: four angles of flat box (2) are respectively provided with installing hole.