CN1015524B - Process for preparing strip type heat pipe vacuum tube - Google Patents

Process for preparing strip type heat pipe vacuum tube

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Publication number
CN1015524B
CN1015524B CN90109523A CN90109523A CN1015524B CN 1015524 B CN1015524 B CN 1015524B CN 90109523 A CN90109523 A CN 90109523A CN 90109523 A CN90109523 A CN 90109523A CN 1015524 B CN1015524 B CN 1015524B
Authority
CN
China
Prior art keywords
pipe
strip
heat pipe
glass
vacuum
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
CN90109523A
Other languages
Chinese (zh)
Other versions
CN1050696A (en
Inventor
许新中
张铸
熊尚义
姚克贤
谢光明
郭信章
牛惠昌
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
BEIJING SOLAR ENERGY INST
Original Assignee
BEIJING SOLAR ENERGY INST
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by BEIJING SOLAR ENERGY INST filed Critical BEIJING SOLAR ENERGY INST
Priority to CN90109523A priority Critical patent/CN1015524B/en
Publication of CN1050696A publication Critical patent/CN1050696A/en
Publication of CN1015524B publication Critical patent/CN1015524B/en
Expired legal-status Critical Current

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    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00Energy generation through renewable energy sources
    • Y02E10/40Solar thermal energy, e.g. solar towers
    • Y02E10/44Heat exchange systems

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  • Joining Of Glass To Other Materials (AREA)

Abstract

The invention belongs to the field of solar energy utilization, and relates to a method for preparing a strip heat pipe of a heat pipe vacuum pipe solar collector for collecting solar energy by utilizing a vacuum technology. The process for preparing the strip-type heat pipe vacuum tube has the advantages of simple manufacturing process, low cost, small combination thermal resistance and good performance.

Description

Technology for making strip-type hot tube vacuum pipe
The invention belongs in the field of solar energy utilization, utilize vacuum technique and hot pipe technique to collect the preparation technology of the strip-type hot tube vacuum pipe of solar energy.
Adopting vacuum technique to collect solar energy is development in recent years, and the product of successively applying has the preparation technology of the vacuum tube of double-deck full-glass vacuum tube and single, double layer glass tube and metal sealing.
Adopting vacuum technique to collect solar energy is development in recent years, and the product of successively applying has the vacuum tube of double-deck full-glass vacuum tube and single, double layer glass tube and metal sealing.In the vacuum tube type of glass-metal combination, heat pipe type vacuum pipe has than remarkable advantages.Heat pipe vacuum tube solar collector can bear higher pressure, and freeze proof, the empty solarization is difficult for fragmentation, easily installs.At present, China is in the development stage to this technology.Abroad, as: companies such as Japan, West Germany, Canada, Britain, Holland all produce heat pipe type vacuum pipe, but heat pipe and the heat absorption fin combination characteristics are respectively arranged.The employing steel that has is worn sheet pressing structure (Holland), the employing ratio-frequency welding structure (Britain) that has, and the employing conduit that has chucking structure (Japan), these structures operation aborning are many, and technology is complicated, and is big in conjunction with thermal resistance.Glass combines with metal, and what the sealing-in between the glass was adopted generally is fire envelope technology, and (800-900 ℃) can cause coating when temperature was higher, can cut down the damage of ring and glass tube, and the qualification rate of product is lower.Heat absorption fin selective coating adopts and soaks or electroplating technology, and the absorbing gas of coating surface is increased, and uses vacuum in the influence pipe for a long time.Purpose of the present invention is exactly to utilize the preparation technology of existing Cu-Al composite strip material, magnetic sputtering coating technology, low-temperature welding hot pressing envelope technology substitutes original heat-pipe vacuum-tube production technology, produce strip-type hot tube vacuum pipe, make the manufacture craft of this product simple, cost is low, and is little in conjunction with thermal resistance, and performance is good.
The strip-type hot tube vacuum pipe that the present invention makes is to be made of glass shell, band heat pipe and heat absorbing coating.The strip-type heat pipe is by putting into a copper pipe or two copper sheets in two aluminium strips, be rolled into Cu-Al composite strip, using then>20kg/cm 2Gas copper pipe blown out the double-wedge section form.At the two ends of strip-type heat pipe cryogenic vacuum scolder welding connecting tube, condenser pipe and blast pipe.It is vacuumized, and liquid is irritated in exhaust, after the sealing-in, carries out magnetron sputtering, and selective coating is splashed on the heat absorption fin.The glass shell of then it being packed into is welded as a whole 300 ℃ of hot pressing envelopes with the low temperature active scolder at upper end cover and bottom end cover and glass shell junction.
The preparation technology of the strip-type heat pipe that the present invention narrated has adopted copper aluminium combination process because heat pipe combines with the heat absorption fin, makes heat pipe simple with the combined process of heat absorption fin, function admirable, low price.Glass shell, and the combination at each position of heat pipe, no matter be glass and glass, glass and metal, all adopt solder hot pressing envelope technology, improve the qualification rate of product widely, selective coating has been sputtered on the aluminium heat absorption fin with magnetron sputtering technique, reduced the adsorbed gas of coating surface widely.
Below in conjunction with accompanying drawing strip-type hot tube vacuum pipe production technology of the present invention is carried out detailed narration.
Accompanying drawing: the strip-type hot tube vacuum pipe structural representation, wherein:
1. condenser pipe 2. bellowss
3. upper end cover 4. bands
5. bottom end cover 6. is towards the liquid joint
7. copper pipe 8. glass shells
9. tube connector
Embodiment one:
With two wide be the aluminum strip band 4 of 58mm, lump together, the centre inserts and puts the copper pipe 7 of a Φ 12mm, puts into the composite that roller press is rolled into thick δ 0.5mm, uses then>20kg/cm 2Gas the copper pipe that is clipped between two aluminum strips is blown out the double-wedge section, the solder of metal mixed that at the two ends of copper pipe in order to indium, gallium is Main Ingredients and Appearance is tube connector 9, condenser pipe 1 and burn-on towards liquid joint 6 carries out heat treatment under 100 ℃ of temperature.Vacuumize, exhaust is sealed up towards the liquid joint behind the filling liquid.The heat pipe that assembles is put into magnetron sputtering coater, with aluminium nitrogen sputtered aluminum to the heat absorption fin on.To be Φ 65mm through the heat pipe of the magnetron sputtering diameter of packing into, height be h1700mm, in the glass shell 8 of thick δ 2.0mm.Bellows 2 one ends link to each other with condenser pipe, and an end links to each other with upper end cover 3.
Upper end cover and bellows adopt the aluminium oxide low temperature glass solder, 400 ℃ of left and right sides sealing-ins.Bellows and condenser pipe adopt ratio-frequency welding to connect.The employing low temperature active scolder that is connected of upper end cover, bottom end cover 5 and glass shell is one 300 ℃ of hot pressing envelopes.Used low temperature active scolder is to be formed by Pb, Sn, Zn, Sb, Cu, Ti, eight kinds of metal material vacuum meltings of Si, Al, and fusing point is 300 ℃, air-tightness≤10 -10Hold in the palm liter/second, adhesive strength 〉=70kg/cm 2, strength of materials 300kg/cm 2The absorptivity α of selective coating 〉=0.92, emissivity≤0.08.
Embodiment two:
With two wide for the aluminum strip band of 93mm lumps together, the centre insert and put two with the suitable copper sheet of diameter of phi 12mm copper pipe, put into roller press be pressed into thick δ 0.5mm condensation material, use then>20kg/cm 2Gas the copper sheet that is clipped between two aluminum strips is blown afloat.Get the copper pipe of a diameter of phi 8mm, two ends, vacuumize with the tube connector condenser pipe, weld towards the liquid joint with common welding, exhaust, filling liquid, seal up towards the liquid joint.The heat pipe that makes is penetrated in the copper sheet that the composite that makes inserts and puts, compress with the method for roll extrusion.With the magnetically controlled sputter method of embodiment 1 with aluminium nitrogen sputtered aluminum to the heat absorption fin, the diameter of packing into then is 100mm, h is 2000mm, δ is in the glass shell of 2.5mm, the technology that adopts embodiment 1 is with bellows and condenser pipe, upper end cover and bellows, upper and lower end cap and glass shell link together.

Claims (2)

1, a kind of preparation technology of strip-type hot tube vacuum pipe is characterized in that:
(1) strip-type heat absorption fin adopts with combining of heat pipe and put into copper sheet or copper pipe in two aluminium flake, is rolled into Cu-Al composite strip, copper pipe is blown afloat again, and seals in the heat pipe compacting and forms;
(2) selective coating on the strip-type heat absorption fin is to adopt the magnetically controlled sputter method sputter to form;
(3) all adopt solder hot pressing envelope to be connected between glass and the glass, glass and metal, it is 300 ℃ that temperature is sealed in hot pressing.
2, the preparation technology of strip-type hot tube vacuum pipe according to claim 1, what it is characterized in that its solder selects for use is a kind of scolder that is formed by Pb, Sn, Zn, Sb, Cu, Ti, eight kinds of metal material vacuum meltings of Si, Al.
CN90109523A 1990-12-01 1990-12-01 Process for preparing strip type heat pipe vacuum tube Expired CN1015524B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN90109523A CN1015524B (en) 1990-12-01 1990-12-01 Process for preparing strip type heat pipe vacuum tube

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN90109523A CN1015524B (en) 1990-12-01 1990-12-01 Process for preparing strip type heat pipe vacuum tube

Publications (2)

Publication Number Publication Date
CN1050696A CN1050696A (en) 1991-04-17
CN1015524B true CN1015524B (en) 1992-02-19

Family

ID=4881471

Family Applications (1)

Application Number Title Priority Date Filing Date
CN90109523A Expired CN1015524B (en) 1990-12-01 1990-12-01 Process for preparing strip type heat pipe vacuum tube

Country Status (1)

Country Link
CN (1) CN1015524B (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102114589B (en) * 2009-12-31 2012-09-05 深圳成霖洁具股份有限公司 Manufacturing method and product of lead-free copper water outlet pipe

Also Published As

Publication number Publication date
CN1050696A (en) 1991-04-17

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