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CN106152566A - Solar oil thermal-collecting tube - Google Patents

Solar oil thermal-collecting tube Download PDF

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Publication number
CN106152566A
CN106152566A CN201510158897.5A CN201510158897A CN106152566A CN 106152566 A CN106152566 A CN 106152566A CN 201510158897 A CN201510158897 A CN 201510158897A CN 106152566 A CN106152566 A CN 106152566A
Authority
CN
China
Prior art keywords
tube
glass
inner tube
layer
glass inner
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.)
Pending
Application number
CN201510158897.5A
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Chinese (zh)
Inventor
官景栋
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.)
Tianjin Binhai Photo Thermal Power Generation Investment Co Ltd
Original Assignee
Tianjin Binhai Photo Thermal Power Generation Investment Co Ltd
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 Tianjin Binhai Photo Thermal Power Generation Investment Co Ltd filed Critical Tianjin Binhai Photo Thermal Power Generation Investment Co Ltd
Priority to CN201510158897.5A priority Critical patent/CN106152566A/en
Publication of CN106152566A publication Critical patent/CN106152566A/en
Pending 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

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Abstract

The present invention provides solar oil thermal-collecting tube, include outer glass tube and glass inner tube, glass inner tube is placed in inside outer glass tube, light collecting layer is scribbled in glass inner tube, light collecting layer is followed successively by from inside to outside: have the metal level of graded films structure, high metallic reflector, low metallic reflector, the lowest metallic reflector, and there is the anti-reflection layer of inteferometer coating structure, glass inner tube is that one end is provided with the water inlet other end and is provided with the U-tube of outlet, the annular chamber of vacuum is formed between outer glass tube and glass inner tube, in outer glass tube and be positioned at bottom glass inner tube and be provided with reflector layer, annular chamber between outer glass tube and glass inner tube is provided with the support that glass inner tube can be made more firmly and to be more quietly fixed in outer glass tube, the diameter of glass inner tube and outer glass tube is respectively 30 35mm and 50 55mm.This thermal-collecting tube applies to tradition slot type technology and i.e. uses conduction oil as heat transfer medium operating temperature 400 degrees Celsius, and this can make power station running temperature be maintained at 390 degrees Celsius stably.

Description

Solar oil thermal-collecting tube
Technical field
The present invention relates to high temperature resistant solar energy heat collection pipe technical field, more specifically to a kind of solar oil thermal-collecting tube.
Background technology
The China of existing a kind of Application No. CN201220012320.5 entitled " a kind of solar energy heat collection pipe " is practical new Type patent discloses a kind of structure, includes outer glass tube and glass inner tube, and described glass inner tube is placed in inside outer glass tube, Being provided with light collecting layer on the periphery of described glass inner tube, described glass inner tube is that one end is provided with the water inlet other end and is provided with The U-tube of outlet, becomes the annular chamber of vacuum by frit seal between described outer glass tube and glass inner tube.
At the high temperature resistant aspect of vacuum heat collection pipe, high temperature resistant vacuum heat collection pipe is absorption film with the difference of conventional vacuum thermal-collecting tube The layer different key position of vacuum heat collection pipe (the absorption film layer be).Three-hypers vacuum heat collection pipe uses inteferometer coating, commonly Vacuum heat collection pipe is graded films.Their difference mainly shows as the difference of inteferometer coating and graded films.
Owing to film layer structure is different, cause the principle absorbing sunray different.Graded films, for multilayer film, it is to sunlight Line successively absorbs, and its light-absorbing performance gradually uprises.Due to this grading structure, transmitting ratio is with temperature Rising continues to increase, so that operating temperature is when 300~500 DEG C, transmitting ratio is greatly increased.And the aluminum in absorbed layer At high operating temperatures, activity is greatly enhanced ion, and drifts about.So the internal structure generation entanglement of film layer, leads Cause film layer and start aging.Being chronically under this condition of high temperature, film layer will come off, thus have impact on vacuum heat collection pipe Collecting efficiency and life-span.Inteferometer coating, its absorbed layer totally 2 layers, between two membranes, produces because the proportioning of metal ingredient is different Raw interference effect, makes absorptance increase, and transmitting ratio reduces.Add anti-reflection layer and reduce the effect of reflection, thus realize more High absorptance and lower transmitting ratio, substantially increase collecting efficiency, but be also to have the advantages that manufacturing cost is high. So graded films and inteferometer coating respectively have pluses and minuses.
Summary of the invention
Instant invention overcomes deficiency of the prior art, it is provided that a kind of solar oil thermal-collecting tube.
The purpose of the present invention is achieved by following technical proposals.
Solar oil thermal-collecting tube, includes outer glass tube and glass inner tube, and described glass inner tube is placed in inside outer glass tube, Scribbling light collecting layer in described glass inner tube, described light collecting layer is followed successively by from inside to outside: have graded films structure metal level, High metallic reflector, low metallic reflector, the lowest metallic reflector, and there is the anti-reflection layer of inteferometer coating structure, described Glass inner tube is that one end is provided with the water inlet other end and is provided with the U-tube of outlet, described outer glass tube and glass inner tube Between form the annular chamber of vacuum, in described outer glass tube and be positioned at bottom glass inner tube and be provided with reflector layer, described Annular chamber between outer glass tube and glass inner tube is provided with glass inner tube can be made more firmly and to be fixed on outside glass more quietly Support in pipe, the diameter of described glass inner tube and outer glass tube is respectively 30-35mm and 50-55mm, outside described glass Being sequentially coated with outer metal level, absorbed layer, blanked dielectric layer outside pipe, described outer metal level is placed on matrix, described Absorbed layer at least covers outer metal level can be by the region of sun direct projection, and described blanked dielectric layer at least covers absorbed layer, The material of described outer metal level is aluminum, copper or silver, and thickness is 30-100nm, and the material of described absorbed layer is the nitrogen of aluminum and aluminum Compound or the nitride of oxide, titanium and titanium or oxide or rustless steel, metallic atom and nitride or oxide Mol ratio is 0-1, and described absorbed layer is for having multilamellar, and thickness is 50-150nm, and the material of described blanked dielectric layer is aluminum Nitride or oxide, the nitride of titanium or oxide or the nitride of silicon or oxide, thickness is 30-70nm.
Described reflector layer is preferably designed as the figure of three reflector of two circular arc compositions, and described reflector is connected with support And be fixed in the inner chamber of outer glass tube.
Described reflector layer may be selected to be the bottom surface layer of outer glass tube, and this bottom surface layer is the reflective interior of two circular arc composition figures of three Wall, scribbles reflectorized material on the reflective inner wall of the figure of three and forms the reflective surface of the figure of three.
Described support is preferably two, and one of them support is arranged in outer glass tube inner chamber and away from water inlet, its In another support be supported in the inner chamber of water inlet one end outer glass tube.
Described annular chamber is also provided with to absorb the absorbent of gas in annular chamber.
Described absorbent is preferably lump absorbent, and this lump absorbent is fixed on bracing frame, and support frame as described above props up On support outer surface bottom the U-shaped of glass inner tube.
The invention have the benefit that this thermal-collecting tube takes multinomial important innovative technology and technique.Which employs one Brand-new high temperature resistant coating for selective absorption, effectively prevents the problem running coating shedding under thermal-collecting tube high temperature;This collection The weight of heat pipe is lighter, simplifies assembling and the mounting process of thermal-collecting tube, makes operation more safe and efficient;Can effectively prevent Thermal-collecting tube assembling and mechanical bumps to sensing units such as glass-to-metal sealing positions during installation and operation;Optimize temperature and Being uniformly distributed of hot fluid, reduces thermal losses and improves collecting efficiency.This thermal-collecting tube applies to tradition slot type technology in work Temperature 400 degrees Celsius i.e. uses conduction oil as heat transfer medium, and this can make power station running temperature be maintained at 390 degrees Celsius surely Fixed, this will bring sustainable generating and keep concise in technology.
Accompanying drawing explanation
Fig. 1 is the overall structure schematic diagram of the present invention;
Fig. 2 is the structural representation of light collecting layer in the present invention.
In figure: 1 is glass inner tube, 2 is metal level, and 3 is high metallic reflector, and 4 is low metallic reflector, 5 attach most importance to low Metallic reflector, 6 is anti-reflection layer, and 7 is outer glass tube, and 8 is reflector, and 9 is support, and 10 is annular chamber.
Detailed description of the invention
Below by specific embodiment, technical scheme is further described.
As depicted in figs. 1 and 2, wherein, 1 is glass inner tube, and 2 is metal level, and 3 is high metallic reflector, and 4 is low Metallic reflector, 5 attach most importance to low metallic reflector, and 6 is anti-reflection layer, and 7 is outer glass tube, and 8 is reflector, and 9 is support, 10 is annular chamber.
Solar molten salt thermal-collecting tube, includes outer glass tube and glass inner tube, and glass inner tube is placed in inside outer glass tube, glass Scribbling light collecting layer in glass inner tube, light collecting layer is followed successively by from inside to outside: have the metal level of graded films structure, high metallic reflection Layer, low metallic reflector, the lowest metallic reflector, and there is the anti-reflection layer of inteferometer coating structure, glass inner tube is one end It is provided with the water inlet other end and is provided with the U-tube of outlet, between outer glass tube and glass inner tube, form the annular of vacuum Chamber, in outer glass tube and be positioned at bottom glass inner tube and be provided with reflector layer, the ring between outer glass tube and glass inner tube Shape chamber is provided with the support that glass inner tube can be made more firmly and to be more quietly fixed in outer glass tube, glass inner tube and glass The diameter of outer tube is respectively 30-35mm and 50-55mm, be sequentially coated with outside outer glass tube outer metal level, absorbed layer, Blanked dielectric layer, described outer metal level is placed on matrix, and absorbed layer at least covers outer metal level can be by sun direct projection Region, blanked dielectric layer at least covers absorbed layer, and the material of outer metal level is aluminum, copper or silver, and thickness is 30-100nm, The material of absorbed layer is aluminum and the nitride of aluminum or the nitride of oxide, titanium and titanium or oxide or rustless steel, gold The mol ratio belonging to atom and nitride or oxide is 0-1, and absorbed layer is for having multilamellar, and thickness is 50-150nm, top layer electricity The material of dielectric layer is aln precipitation or oxide, the nitride of titanium or oxide or the nitride of silicon or oxide, thick Degree is 30-70nm.
Reflector layer is preferably designed as the figure of three reflector of two circular arc compositions, and reflector is connected with support and is fixed on In the inner chamber of outer glass tube.
Reflector layer may be selected to be the bottom surface layer of outer glass tube, and this bottom surface layer is the reflective inner wall of two circular arc composition figures of three, The reflective inner wall of the figure of three scribbles reflectorized material and forms the reflective surface of the figure of three.
Support is preferably two, and one of them support is arranged in outer glass tube inner chamber and away from water inlet, Qi Zhongling One support is supported in the inner chamber of water inlet one end outer glass tube.
Annular chamber is also provided with absorbing the absorbent of gas in annular chamber.
Absorbent is preferably lump absorbent, and this lump absorbent is fixed on bracing frame, and bracing frame is supported on glass On outer surface bottom the U-shaped of inner tube.
This thermal-collecting tube takes multinomial important innovative technology and technique.Which employs a kind of brand-new high temperature resistant selectivity to inhale Receive coating, effectively prevent the problem running coating shedding under thermal-collecting tube high temperature;The weight of this thermal-collecting tube is lighter, simplifies The assembling of thermal-collecting tube and mounting process, make the operation more safe and efficient;Can effectively prevent thermal-collecting tube assembling and install and fortune Mechanical bumps to sensing units such as glass-to-metal sealing positions during row;Optimize being uniformly distributed of temperature and hot fluid, fall Low grade fever is lost and improves collecting efficiency.This thermal-collecting tube applies to tradition slot type technology and i.e. uses operating temperature 400 degrees Celsius Conduction oil as heat transfer medium, this can make power station running temperature be maintained at 390 degrees Celsius stable, this will bring sustainable development Electricity and holding concise in technology.
Above the present invention is done exemplary description, it should explanation, in the case of without departing from the core of the present invention, Any simple deformation, amendment or other those skilled in the art can not spend the equivalent of creative work all to fall Enter protection scope of the present invention.

Claims (6)

1. solar oil thermal-collecting tube, it is characterised in that: including outer glass tube and glass inner tube, described glass inner tube is placed in glass Glass outer tube, described glass inner tube scribbles light collecting layer, and described light collecting layer is followed successively by from inside to outside: have graded films knot The metal level of structure, high metallic reflector, low metallic reflector, the lowest metallic reflector, and there is inteferometer coating structure Anti-reflection layer, described glass inner tube is that one end is provided with the water inlet other end and is provided with the U-tube of outlet, outside described glass Manage and form the annular chamber of vacuum between glass inner tube, in described outer glass tube and be positioned at bottom glass inner tube be provided with anti- Photosphere, is provided with in the annular chamber between described outer glass tube and glass inner tube and can make glass inner tube more firmly and more quietly The support being fixed in outer glass tube, the diameter of described glass inner tube and outer glass tube is respectively 30-35mm and 50-55mm, Being sequentially coated with outer metal level, absorbed layer, blanked dielectric layer outside described outer glass tube, described outer metal level is placed on On matrix, described absorbed layer at least covers outer metal level can be by the region of sun direct projection, and described blanked dielectric layer is at least Covering absorbed layer, the material of described outer metal level is aluminum, copper or silver, and thickness is 30-100nm, the material of described absorbed layer Matter is aluminum and the nitride of aluminum or the nitride of oxide, titanium and titanium or oxide or rustless steel, metallic atom and nitrogen The mol ratio of compound or oxide is 0-1, and described absorbed layer is for having multilamellar, and thickness is 50-150nm, described top layer electricity The material of dielectric layer is aln precipitation or oxide, the nitride of titanium or oxide or the nitride of silicon or oxide, thick Degree is 30-70nm.
Solar oil thermal-collecting tube the most according to claim 1, it is characterised in that: described reflector layer is preferably designed as The figure of three reflector of two circular arc compositions, described reflector is connected with support and is fixed in the inner chamber of outer glass tube.
Solar oil thermal-collecting tube the most according to claim 2, it is characterised in that: described reflector layer may be selected to be glass The bottom surface layer of outer tube, this bottom surface layer is the reflective inner wall of two circular arc composition figures of three, on the reflective inner wall of the figure of three Scribble reflectorized material and form the reflective surface of the figure of three.
Solar oil thermal-collecting tube the most according to claim 1, it is characterised in that: described support is preferably two, One of them support is arranged in outer glass tube inner chamber and away from water inlet, and other in which support is supported near water inlet In the inner chamber of mouth one end outer glass tube.
Solar oil thermal-collecting tube the most according to claim 1, it is characterised in that: described annular chamber is also provided with energy Absorb the absorbent of gas in annular chamber.
Solar oil thermal-collecting tube the most according to claim 1, it is characterised in that: described absorbent is preferably block Absorbent, this lump absorbent is fixed on bracing frame, and outside support frame as described above is supported on bottom the U-shaped of glass inner tube On surface.
CN201510158897.5A 2015-04-06 2015-04-06 Solar oil thermal-collecting tube Pending CN106152566A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201510158897.5A CN106152566A (en) 2015-04-06 2015-04-06 Solar oil thermal-collecting tube

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201510158897.5A CN106152566A (en) 2015-04-06 2015-04-06 Solar oil thermal-collecting tube

Publications (1)

Publication Number Publication Date
CN106152566A true CN106152566A (en) 2016-11-23

Family

ID=57338420

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201510158897.5A Pending CN106152566A (en) 2015-04-06 2015-04-06 Solar oil thermal-collecting tube

Country Status (1)

Country Link
CN (1) CN106152566A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113551435A (en) * 2021-07-15 2021-10-26 武汉赛尔太阳能科技有限公司 Building energy-saving solar heat storage water supply system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113551435A (en) * 2021-07-15 2021-10-26 武汉赛尔太阳能科技有限公司 Building energy-saving solar heat storage water supply system

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Application publication date: 20161123

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