CN202792593U

CN202792593U - Flat plate type solar vacuum heat collecting device

Info

Publication number: CN202792593U
Application number: CN2012203688039U
Authority: CN
Inventors: 余华阳
Original assignee: Individual
Current assignee: Individual
Priority date: 2012-07-18
Filing date: 2012-07-18
Publication date: 2013-03-13
Anticipated expiration: 2022-07-18

Abstract

The utility model belongs to the field of solar energy application and relates to a flat plate type solar vacuum heat collecting device. Due to the fact that only one layer of light-transmitting glass for preserving heat is arranged on a plate core in the existing heat collecting device of a solar flat plate water heater, heat insulation performance is poor, temperature can not rise, and heat efficiency is low. The flat plate type solar vacuum heat collecting device is characterized in that the plate core of the heat collecting device is arranged in the middle of a glass box body formed by an upper half box (1) and a lower half box (2) with a pipe hole (4) on the lateral side, a combined face of the two half boxes is sealed, air is sucked to a glass box body cavity through an air sucking hole (5), then the air sucking hole is sealed, and a vacuum heat insulation layer is formed between the plate core of the heat collecting device and the glass box body. A vacuum heat preservation effect is good, working temperature of the heat collecting device can be effectively increased, and heat efficiency is improved. The box body is provided with an upper layer of glass and a lower layer of glass, and the heat collecting device is light and thin, convenient to install and easy to be integrated with a building. A plastic pipe replaces a copper pipe of a collecting pipe (6), and cost is low.

Description

The plate type solar vacuum collector

Technical field

The utility model belongs to the Application of Solar Energy field, especially the plate solar water heater.

Background technology

The heat collector that is used for the plate solar water heater is made of box body and plate core, and prior art is in a box body insulation material to be set, and the plate core is set on insulation material, cover glass cover plate on the plate core.Owing to only have one deck glass above the plate core, so heat insulation effect is poor, the hot water temperature does not increase, and the thermal efficiency is low.Again because the heat-insulation layer below the plate core is not only thick but also heavy, can not with the better combination of building.

Summary of the invention

The purpose of this utility model is to provide a kind of high insulating effect, and the thermal efficiency is high, and cost is low, and is not only light but also thin, can be better and the building integrated solar heat collector.

Its solution is: the box body of heat collector is the glass box body, and this glass box body is made of first box and second box, all has in two and half boxes and half box all-in-one-piece homogeneity support column, and pore is left in the side of second box, and aspirating hole is left in the bottom surface; The plate core is made of collecting pipe, heat exchanger tube and absorber plate, and the two ends of heat exchanger tube are connected with collecting pipe respectively, and the centre is welded on the upper surface of absorber plate; The plate core is placed in the middle of the box body, and stretch out from pore respectively at the two ends of collecting pipe becomes ozzle, uses sealant sealing between ozzle and the pore; The buckling surface of two and half boxes sticks with glue the knot sealing; Glass box body cavity forms vacuum heat-insulating layer by the aspirating hole air extracting seal between plate core and glass box body.

The vacuum heat-insulating layer better heat preservation reduces thermal loss, and the operating temperature of Effective Raise heat collector improves the thermal efficiency; Box body is made of glass entirely, and cost is low; Box body only has layer glass, and this is so that heat collector is lighter, thinner, installs more conveniently, is more convenient for and architecture-integral.

Description of drawings

Accompanying drawing is the schematic diagram of plate type solar vacuum collector.

The specific embodiment

Below in conjunction with the description of drawings specific embodiment of the present utility model, with collecting pipe (6) welding of prior art with the termination of heat exchanger tube (7) and two ends, the upper surface that again centre of heat exchanger tube (7) is welded on absorber plate (8) becomes the plate core; According to the shape of plate core, make mould again; Utilize mould that hot melt glass is suppressed into have support column first box (1) and second box (2) of (3); The plate core is placed on the centre of second box (2), and the two ends of collecting pipe (6) are stretched out from pore (4) becomes ozzle, between ozzle and pore with sealant sealing (this ozzle has 4, is used for connecting external pipe).Then, gluing on the buckling surface of second box (2) fastens first box (1), bleed by aspirating hole (5), make the upper and lower faces of plate core become vacuum, last, sealing aspirating hole (5) has just made the plate type solar vacuum collector.Prior art recited above also is included in the glass surface making antireflection coatings that the plate wicking surface is made heat absorbing coating and first box (1).The heat collector of full glass box body is fixed with metal clamps at four angles during installation.

Improve and be the first time of present technique: the buckling surface of two glass half boxes is zig zag plane.Zig zag plane not only can increase adhesive surface but also can form the turning, is not easy like this gas leakage.

Improve and be the second time of present technique: the zig zag plane at two glass half box fastening places is convex concave.Above-mentioned zig zag plane has convex concave, v shape, waveform, zigzag etc., all at the protection domain of present technique.

The for the third time improvement of present technique is: be connected with collecting pipe (6) in the glass box body with glass tube, adopt the sealing by fusing mode to seal between glass tube ozzle and the pore (4).Certainly, also can use sealant sealing.

The 4th improvement of present technique is: be connected with collecting pipe (6) in the glass box body with aluminium-plastic pipe, aluminium-plastic pipe ozzle and pore adopt sealant sealing between (4).

The 5th improvement of present technique is: be connected with collecting pipe (6) in the glass box body with plastic tube, plastic tube ozzle and pore adopt sealant sealing between (4).

The 6th improvement of present technique is: with the copper pipe of the alternative collecting pipe (6) of plastic tube, beat a plurality of holes at plastic tube, heat exchanger tube (7), insert port sealant sealing are inserted in each hole.So just save two blister copper pipes using as collecting pipe, can save cost.But do not affect load performance and the product quality of heat collector.

The 7th improvement of present technique is: with the copper pipe of the alternative collecting pipe (6) of aluminium-plastic pipe, beat a plurality of holes at aluminium-plastic pipe, heat exchanger tube (7), insert port sealant sealing are inserted in each hole.

The 8th improvement of present technique is: second box (2) only leaves pore (4) in a side, does not have an end of pore to seal in the glass box body collecting pipe (6).So just only have two ozzles to be connected with the pipeline in the external world, structure is simpler.

The 9th improvement of present technique is: heat exchanger tube (7) and the contacted part of absorber plate (8) are processed as semicircle, semicircular rectangular plane is sticked with glue knot at the upper surface of absorber plate (8), the most handy heat conductive silica gel.Also can use space coating, because space coating also is a kind of high-temperature agglomerant.Such contacting between heat exchanger tube (7) and the absorber plate (8) just original copper pipe and the line on plane and contacting of face, changed into contacting of face and face, contacts like this face width, and heat-transfer effect is better.Stick with glue knot and compare not only saving of labor but also power saving with welding.

The described plate core of present technique comprises foregoing tube-sheet type plate core, and flat box type and other forms of plate core.

Above-mentioned fluid sealant is again sealant.

Claims

1. plate type solar vacuum collector, this heat collector is made of box body and plate core, it is characterized in that: the box body of heat collector is the glass box body, this glass box body is made of first box (1) and second box (2), all have in two and half boxes and half box all-in-one-piece homogeneity support column (3), pore (4) is left in the side of second box (2), and aspirating hole (5) is left in the bottom surface; The plate core is by collecting pipe (6), and heat exchanger tube (7) and absorber plate (8) consist of, and the two ends of heat exchanger tube (7) are connected with collecting pipe (6) respectively, and the centre is welded on the upper surface of absorber plate (8); The plate core is placed in the middle of the box body, and stretch out from pore (4) respectively at the two ends of collecting pipe (6) becomes ozzle, uses sealant sealing between ozzle and the pore; The buckling surface of two and half boxes sticks with glue the knot sealing; Glass box body cavity forms vacuum heat-insulating layer by aspirating hole (5) air extracting seal between plate core and glass box body.

2. heat collector according to claim 1, it is characterized in that: the buckling surface of two glass half boxes is zig zag plane.

3. heat collector according to claim 2, it is characterized in that: the zig zag plane at two glass half box fastening places is convex concave.

4. heat collector according to claim 1 is characterized in that: be connected with collecting pipe (6) in the glass box body with glass tube, adopt the sealing by fusing mode to seal between glass tube ozzle and the pore (4).

5. heat collector according to claim 1 is characterized in that: be connected with collecting pipe (6) in the glass box body with aluminium-plastic pipe, aluminium-plastic pipe ozzle and pore adopt sealant sealing between (4).

6. heat collector according to claim 1 is characterized in that: be connected with collecting pipe (6) in the glass box body with plastic tube, plastic tube ozzle and pore adopt sealant sealing between (4).

7. heat collector according to claim 1 is characterized in that: second box (2) only leaves pore (4) in a side, does not have an end of pore to seal in the glass box body collecting pipe (6).

8. heat collector according to claim 1 is characterized in that: heat exchanger tube (7) and the contacted part of absorber plate (8) are processed as semicircle, semicircular rectangular plane is sticked with glue knot at the upper surface of absorber plate (8).