CN2195766Y

CN2195766Y - Removable metal tube-vacuum tube solar energy thermal-arrest device

Info

Publication number: CN2195766Y
Application number: CN94206910U
Authority: CN
Inventors: 罗鸣
Original assignee: Individual
Current assignee: Individual
Priority date: 1994-03-09
Filing date: 1994-03-09
Publication date: 1995-04-26
Anticipated expiration: 2004-03-09

Abstract

The utility model discloses a removable metal tube-vacuum tube solar energy heat-collecting device. The utility model is formed by that a metal tube whose outer surface is coated with the selective absorption coating layer of the solar energy spectrum is arranged in a full glass vacuum tube, the vacuum is pumped between the inner and the outer glass exposed tubes of the full glass vacuum tube, the metal tube and the full glass vacuum tube are sealed and insulated by a removable connecting component, and a complete device is connected. Thus, the utility model has the advantages of simple transportation, use and repair, less investment, large qualification rate, and high productivity. A solar energy absorption coating layer can not be influenced by the high-temperature baking when the vacuum is pumped, and the manufacturing cost of the utility model can be greatly reduced.

Description

Removable metal tube-vacuum tube solar energy thermal-arrest device

The utility model relates to a kind of solar vacuum heat-collecting pipe, particularly a kind of Knockdown metal pipe--vacuum pipe solar heat collecting device, it is suitable for utilizing sun power to come hot-water supply, boiling water, air-conditioning, refrigeration, ice making, heating, drying, solar energy housing, desalinization, draw water and field such as generating, is used as the heat-collecting element device of collecting sun power.

Existing solar vacuum heat-collecting pipe is by scorification sealing-in between the inner glass tube of transparent outer glass pipe and outside surface coated solar spectral selective absorbing coating, and vacuumize formation, or by passing through expansion alloy scorification sealing-in between the interior metal tube of transparent outer glass pipe and outside surface coated solar spectral selective absorbing coating, and vacuumize and constitute, thereby have following defective:

(1) because in, when vacuumizing between the outer tube, necessary heated baking, general heating-up temperature reaches in 350 ℃～500 ℃ scopes, to expel the gas that in the vaccum interval hide in various materials inside, make it to pump, in order to avoid venting in the future, influence vacuum tightness, thereby when heating vacuumizes, high temperature can bring the solar energy absorbing coating of inner tube outer surface coated and have a strong impact on, easy peeling, be full of cracks, come off or burn, thereby to solar spectral selective absorbing coating material requirements height, coating technology requires tight, complex process, apparatus expensive, thus make the vacuum heat collection pipe manufacturing cost very high.

(2) owing to be sintered into one between the interior pipe of outside surface coated solar spectral selective absorbing coating and the transparent outer glass pipe, not removable, during damage, solar spectral selective absorbing coating is simultaneously by the newspaper damage.

The utility model by retrieval, consult and market survey, find to have Knockdown metal pipe--vacuum pipe solar heat collecting device so far both at home and abroad.

Can data for reference have:

(1) the 3rd page in solar energy utilization technique--all-glass vacuum tube water heater--(teaching materials) the 4th chapter.

Department of electronic engineering, tsinghua university sun power group is published in October, 1991.

(2) BTZ-1 type heat pipe vacuum tube solar collector brief introduction

It is to be subsidized by the United Nations's exploitation heat and the West Germany Department of Science and Technology, is developed into by Liu Dazhong.

Task of the present utility model is that a kind of Knockdown metal pipe---vacuum pipe solar heat collecting device will be provided, the removable separation between the all-glass vacuum tube that vacuumizes between the metal tube that it can make outside surface coated solar spectral selective absorbing coating on the structure and the inside and outside glass exposed conduit, can assemble again, connect into complete components and parts, that is Knockdown metal pipe--vacuum pipe solar heat collecting device.

Its purpose is to make its processing, transports, uses and keeps in repair easy, make it to reduce its cost and upkeep cost significantly, and solar spectral selective absorbing coating can not vacuumized heated baking the time high temperature it is influenced.

The utility model is achieved in that to be made the all-glass vacuum tube that vacuumizes between the metal tube of outside surface coated solar spectral selective absorbing coating and the inside and outside glass exposed conduit respectively, make independent components and parts, with removable coupling assembling metal tube and vacuum tube are linked and packed into Knockdown metal pipe--vacuum pipe solar heat collecting device then.

Below in conjunction with accompanying drawing the utility model is described in further detail:

Fig. 1 be each back cover of inside and outside glass exposed conduit lower end and the metal tube lower end also back cover again not with Knockdown metal pipe--the longitudinal sectional view of vacuum pipe solar heat collecting device of fin.

Fig. 2 be vacuum tube be lead directly to and metal tube also for straight-through and with Knockdown metal pipe---the vacuum pipe solar heat collecting device longitudinal sectional view of fin.

Fig. 3 is along the transverse sectional view of NN line among Fig. 2.

Fig. 4 is metal tube---the vacuum pipe solar heat collecting device longitudinal sectional view that U-shaped metal tube that the vacuum tube of each back cover of inside and outside glass exposed conduit lower end is communicated with two ends is assembled into.

Fig. 5 is along the transverse sectional view of MM line among Fig. 4.

Fig. 6 is Knockdown metal pipe--the vacuum pipe solar heat collecting device transverse cross sectional view of back cover metal pipe racks writing board shape fin

Fig. 7 is Knockdown metal pipe--the vacuum pipe solar heat collecting device transverse sectional view of U-shaped metal pipe racks garden barrel shape fin.

Fig. 8 is Knockdown metal pipe--the vacuum pipe solar heat collecting device transverse sectional view of back cover metal pipe racks garden barrel shape fin.

This Knockdown metal pipe--vacuum pipe solar heat collecting device is that the metal tube (4) with outside surface coated solar spectral selective absorbing coating (5) is installed in the all-glass vacuum tube (20) that vacuumizes between the inside and outside glass exposed conduit, with removable coupling assembling (11) will be between metal tube (4) and the vacuum tube (20) sealing heat insulation and connect into a complete device.

This Knockdown metal pipe---vacuum pipe solar heat collecting device can be divided into three types on structure:

(1) a kind of is that metal tube (4A) correspondence of single port formula lower end closed is installed in the all-glass vacuum tube (20A) of single port formula lower end closed; To seal heat insulation between metal tube (4A) and the vacuum tube (20A) and link into an integrated entity with a removable coupling assembling (11A).

(2) another kind is that straight-through metal tube (4B) correspondence in two ends is installed in the straight-through all-glass vacuum tube (20B) in two ends, will seal heat insulation between metal tube (4B) and the vacuum tube (20B) and link into an integrated entity with two removable coupling assemblings (11A).

(3) another U-shaped metal tube (4C) correspondence that is two ends are communicated with is installed in the all-glass vacuum tube (20A) of single port formula lower end closed, will seal heat insulation between metal tube (4C) and the vacuum tube (20A) and link into an integrated entity with a removable coupling assembling (11B).

Its metal tube (4A), (4B) or (4C) have or are not with fin (22), at the equal coated of outside surface of metal tube (4A), (4B) or (4C) and fin (22) thereof solar spectral selective absorbing coating (5) are arranged.

Its metal tube (4A), (4B) or (4C) can be the fin (22A) of writing board shape or the fin (22B) of garden barrel shape with fin (22).

This solar energy heating device its not with fin and metal tube base seal (4A) or also not with fin and straight-through metal tube (4B), it all can be equipped with or not adorn support sleeve (2A) up and down, and the metal tube (4B) of metal tube base seal (4A) or through type or the U-shaped metal tube (4C) that be communicated with (22B) for band garden barrel shape fin, its garden tube fin (22B), support sleeve (2A) can be equipped with or not adorn up and down, for band writing board shape fin (22A) and metal tube base seal (4A) or straight-through metal tube (4B) or the U-shaped metal tube (4C) that is communicated with its garden plate rack (2B) is housed up and down, its effect is to make metal tube (4A), (4B) or (4C) and all-glass vacuum tube (20A) or (20B) support mutually.

This Knockdown metal pipe--vacuum pipe solar heat collecting device, its all-glass vacuum tube (20B) is by respectively holding the scorification sealing-in between inside and outside glass exposed conduit (6B) and (7B) its two ends oral area, make its interlayer (19) sealing, perhaps its all-glass vacuum tube (20A) is by interior, welding sealing between its upper end oral area of outer glass exposed conduit (6A) and (7A), and each scorification of lower end pulls at the bottom of the half garden shape ball, interior, between outer glass exposed conduit (6B) and (7B) or between (6A) and (7A), on before sealing, the following elastic support (3A) that asbestos grain (3B) all is housed or has getter (21) (for example barium titanium type getter), chew (1B) by exhaust after the sealing-in or (1A) vacuumizes, the vacuum tightness that makes its interlayer (19) is less than 7 * 10 ^-3Pa makes exhaust chew (1B) or (1A) scorification sealing then.

The inside and outside glass exposed conduit (6A) of its vacuum tube and (7A), or the material of (6B) and (7B) can be both Pyrex, sodium---and lime glass, quartz glass or group make every effort to overcome department (Pyrex) glass.

This removable coupling assembling (11) that is (11A) or (11B) are by adapter sleeve (18) that is (18A) or (18B), tinsel (13), clip (17), packing ring (8), screw (10), nut (9) and asbestos lining (14) are formed, adapter sleeve (18A) or (18B) are enclosed within the oral area of all-glass vacuum tube (20A) or (20B), with clip (17) appropriateness chucking, with screw (10), nut (9) and packing ring (8) are fastening, the other end is enclosed within on metal tube (4A) or (4B), or other two-port is enclosed within the Import ﹠ Export Department of U-shaped metal tube (4C), and make adapter sleeve (18A) or (18B) and metal tube (4A) with asbestos lining (14), heat insulation between (4B) or (4C), tighten in addition, and adapter sleeve (18A) or (18B) inner chamber are equipped with insulation and fill in (12) with tinsel (13).

Its adapter sleeve (18A) or (18B) are made by the ageing-resistant whippy rubber (for example silicon rubber) of heatproof, and the two ends connecting portion has tapering, there is annular cocked bead (15) centre, on edge (15), have ring-shaped groove (16), be used for being connected chucking and sealing usefulness with water-heater water tank or the collection connection pipe hole above both.

Claims

1, a kind of metal tube-vacuum pipe solar heat collecting device, it is characterized in that the metal tube [4] of outside surface coated solar spectral selective absorbing coating [5] is installed in the all-glass vacuum tube [20] that vacuumizes between the inside and outside glass exposed conduit, will seal heat insulation between metal tube [4] and the vacuum tube [20] and connect into a complete device with removable coupling assembling [11].

2, solar energy heating device according to claim 1 defined, metal tube (4A) correspondence that it is characterized in that single port formula lower end closed is installed in the all-glass vacuum tube (20A) of single port formula lower end closed, to seal heat insulation between metal tube (4A) and the vacuum tube (20A) and link into an integrated entity with a removable coupling assembling (11A), or straight-through metal tube (4B) correspondence in two ends is installed in the straight-through all-glass vacuum tube (20B) in two ends, to seal heat insulation between metal tube (4B) and the vacuum tube (20B) and link into an integrated entity with two removable coupling assemblings (11A), or U-shaped metal tube (4C) correspondence that two ends are communicated with is installed in the all-glass vacuum tube (20A) of single port formula lower end closed, will seal heat insulation between metal tube (4C) and the vacuum tube (20A) and links into an integrated entity with a removable coupling assembling (11B).

3, according to the solar energy heating device of claim 1 or 2 defineds, it is characterized in that metal tube (4A), (4B) or (4C) have or be not with fin (22), solar spectral selective absorbing coating (5) is arranged at the equal coated of outside surface of metal tube (4A), (4B) or (4C) and fin (22) thereof.

4, according to the solar energy heating device of claim 3 defined, it is characterized in that metal tube (4A), (4B) or (4C) can be the fin (22A) of writing board shape or the fin (22B) of garden barrel shape with fin (22).

5, according to the solar energy heating device of claim 1 or 4 each defineds, it is characterized in that:

A. for not with metal tube (4A) or (4B) of fin, it is upper and lower to be equipped with or not to adorn support sleeve (2A),

B. for golden sleeve pipe (4A), (4B) or (4C) of band garden barrel shape fin (22B), its garden tube fin (22B) is upper and lower is equipped with or does not adorn support sleeve (2A),

C. for the metal tube (4A), (4B) or (4C) that are with writing board shape fin (22A), its upper and lower garden plate rack (2B) that is equipped with.

6, solar energy heating device according to claim 1 defined, it is characterized by all-glass vacuum tube (20B) is by interior, respectively hold the scorification sealing-in between its two ends oral area of outer glass exposed conduit (6B) and (7B), make its interlayer (19) sealing, perhaps all-glass vacuum tube (20A) is by interior, welding sealing between its upper end oral area of outer glass exposed conduit (6A) and (7A), and each scorification of lower end pulls at the bottom of the half garden shape ball, interior, between outer glass exposed conduit (6B) and (7B) or between (6A) and (7A), asbestos grain (3B) is housed up and down before sealing or the elastic support (3A) of being with getter (21) is housed, chew (1B) by exhaust after the sealing-in or (1A) vacuumizes, the vacuum tightness that makes its interlayer (19) is less than 7 * 10 ^-3Pa makes exhaust chew (1B) or (1A) scorification sealing then.

7, according to the solar energy heating device of claim 1 or 6 defineds, it is characterized in that the inside and outside glass exposed conduit (6A) and the material of (7A) or (6B) and (7B) can be both Pyrex, sodium---lime glass, quartz glass or group make every effort to overcome department (Pyrex) glass.

8, solar energy heating device according to claim 1 or 2 defineds, it is characterized by removable coupling assembling (11A) or (11B) is by adapter sleeve (18A) or (18B), tinsel (13), clip (17), packing ring (8), screw (10), nut (9) and asbestos lining (14) are formed, one end of adapter sleeve (18A) is placed in the oral area of all-glass vacuum tube (20A) or an end of adapter sleeve (18B) is placed in the oral area of (20B), with clip (17) appropriateness chucking, with screw (10), nut (9) and packing ring (8) are fastening, the other end is enclosed within metal tube (4A) or (4B) goes up or other two-port is enclosed within advancing of U-shaped metal tube (4C), export department, and make between adapter sleeve (18A) or (18B) and metal tube (4A) or (4B) or (4C) heat insulation with asbestos lining (14), tighten in addition, and adapter sleeve (18A) or (18B) inner chamber are equipped with insulation and fill in (12) with tinsel (13).

9, the solar energy heating device of defined according to Claim 8, it is characterized by adapter sleeve (18A) or (18B) is to be made by the ageing-resistant whippy rubber of heatproof, and the two ends connecting portion has tapering, there is cocked bead (15) centre, has ring-shaped groove (16) on edge (15).