CN101603737A - The method and apparatus of vacuum heat-insulation is provided for solar energy system with negative pressure source - Google Patents
The method and apparatus of vacuum heat-insulation is provided for solar energy system with negative pressure source Download PDFInfo
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- CN101603737A CN101603737A CNA2008100388933A CN200810038893A CN101603737A CN 101603737 A CN101603737 A CN 101603737A CN A2008100388933 A CNA2008100388933 A CN A2008100388933A CN 200810038893 A CN200810038893 A CN 200810038893A CN 101603737 A CN101603737 A CN 101603737A
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- closed container
- printing opacity
- solar energy
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- Y—GENERAL 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A20/00—Water conservation; Efficient water supply; Efficient water use
- Y02A20/20—Controlling water pollution; Waste water treatment
- Y02A20/208—Off-grid powered water treatment
- Y02A20/212—Solar-powered wastewater sewage treatment, e.g. spray evaporation
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- Y—GENERAL 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B10/00—Integration of renewable energy sources in buildings
- Y02B10/20—Solar thermal
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- Y—GENERAL 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/40—Solar thermal energy, e.g. solar towers
- Y02E10/44—Heat exchange systems
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Abstract
Provide the method for vacuum heat-insulation for solar energy system with negative pressure source: form an active vacuous solar energy with printing opacity closed container, solar energy collecting use device, TT﹠C system and negative pressure source and collect the system that utilizes, negative pressure source is communicated with the formation vacuum heat-insulating layer with the printing opacity closed container.Active vacuous solar energy collection according to the method utilizes system, is made up of printing opacity closed container, solar energy collecting use device, TT﹠C system and negative pressure source, it is characterized in that containing the exhaust passage between printing opacity closed container and the negative pressure source.The present invention can solve material outgassing and helium permeates the problem that vacuum is descended.Available common sealing technology is made various solar energy evacuated collections and is utilized new product, has enlarged material and technology is selected scope for use.Product service life can be synchronous with building.The heat energy cost is low.Adopt sheath to help to solve the scale error problem of glass tube sheet.Cladding glass thin slice printing opacity closed container hollow good heat-insulation effect, easy to use.Provide 5 embodiment in conjunction with the accompanying drawings.
Description
Affiliated technical field
The present invention relates to provide for solar energy system the method and apparatus of vacuum heat-insulation with negative pressure source.
Background technology
Adopt vacuum heat-insulation can effectively improve solar energy heating temperature and efficient.The vacuum heat-insulating layer of existing product forms when heat collecting element is made and relies on sealing to keep, its product form, performance, used material and be subjected to the restriction of vacuum heat-insulating layer Sealing Technology service life also can't be gone eliminating again to a small amount of gas in the vacuum collector.
Summary of the invention
The objective of the invention is to provide the method and apparatus that vacuum heat-insulation is provided for solar energy system with negative pressure source.
The present invention solves the method that its technical problem takes: form an active vacuous solar energy with printing opacity closed container, solar energy collecting use device, TT﹠C system and negative pressure source and collect the system that utilizes.The printing opacity closed container comprises having through body, embedded with solar collects use device or the integral type printing opacity closed container integrally manufactured with the solar energy collecting use device; Also comprise the split type printing opacity closed container that has through body and non-embedded with solar collection use device.The solar energy collecting use device comprises absorber, thermal apparatus, thermoelectric element and heating load.With negative pressure source such as vavuum pump is communicated with the printing opacity closed container and the gas in the printing opacity closed container extract out is formed vacuum heat-insulating layer.So be called active vacuum because of this vacuum depends on negative pressure source.
The present invention solves the technical scheme that its technical problem takes according to said method: form an active vacuous solar energy with printing opacity closed container, solar energy collecting use device, TT﹠C system and negative pressure source and collect the system that utilizes.Contain the exhaust passage between printing opacity closed container and the negative pressure source.The printing opacity closed container comprises having through body, embedded with solar collects use device or the integral type printing opacity closed container integrally manufactured with the solar energy collecting use device; Also comprise the split type printing opacity closed container that has through body and non-embedded with solar collection use device.The solar energy collecting use device comprises absorber, thermal apparatus, thermoelectric element and heating load.Negative pressure source such as vavuum pump are extracted the gas in the printing opacity closed container out and are formed vacuum heat-insulating layer.For the opposing negative pressure can be used support member.Each printing opacity closed container can be isolated with valve.The desirable different shape of printing opacity closed container comprises the tabular and spherical crown shape of curved surface.See through body edge or port and can wrap up the bonding sheath.
Beneficial effect of the present invention comprises: the active vacuum that relies on negative pressure source to provide can solve the problem that chronic leakage, material outgassing, helium infiltration and high-temperature gas expand vacuum is descended.Available sealing ring or common sealing technology such as be bonded and sealed are made various solar energy evacuated collections and are utilized new product, have enlarged material and technology and have selected for use scope for example to see through body with safety glass to improve anti-hail ability.Product service life can be synchronous with building.The heat energy cost is low.Adopt sheath to help to solve the scale error problem of glass tube sheet and improve its force status.Easy to install, the good heat-insulation effect of the split type printing opacity closed container of cladding glass thin slice.
Description of drawings
The present invention is further described below in conjunction with drawings and Examples.
Fig. 1 is the structure diagrammatic sketch of active vacuous solar energy sea water by distillation system embodiment.
Fig. 2 be in the structure diagrammatic sketch of logical double-U-shaped active vacuum solar heat-collecting pipe embodiment.
Fig. 3 is the structure diagrammatic sketch of the active vacuum solar heat-collecting pipe embodiment of through type.
Fig. 4 is the structure diagrammatic sketch of the active vacuum solar heat-collecting pipe embodiment of bending through type.
Fig. 5 is the side-looking of the split type printing opacity closed container of cladding glass thin slice embodiment and faces the structure diagrammatic sketch.
1. sheaths among the figure; 2. see through body; 3. frame; 4. condenser; 5. housing; 6. printing opacity closed container; 7. evaporimeter; 8. aperture; 9. absorber; 10. support member; 11. thermal sleeve; 12. refute pipe; 13. exhaust passage; 14. exhaust arterial highway; 15. automatic braking flow-limiting valve; 16. roughing pump; 17. high-vacuum pump; 18. normally close valve; 19. normally open valve; 20. connector; 21. sealed interface; 22.U type connector; 23. solar energy collecting use device; 24. ogive; 25. logical sheet; 26. cover sheet; 27. glass.
The specific embodiment
Among Fig. 1, being stained with aluminium matter cross section by one is that the flat board of the bound edge sheath 1 of U type sees through body 2 and one and frame 3 and condenser 4 integrally manufactured housings 5 and is bonded and sealed and constitutes an integral type printing opacity closed container 6.Printing opacity closed container 6 contain one 7 integrally manufactured with evaporimeter, with the absorber 9 of many apertures 8.See through between body 2 and the housing 5 and support the opposing negative pressure with many support members 10 that pass absorber 9 apertures 8.Support member 10 does not contact with the aperture 8 of absorber 9.
Printing opacity closed container 6 adopts a recessed thermal sleeve 11 to reduce the heat loss of turnover water barge pipe 12 junctions.Thermal sleeve 11 inner ends are tightly connected and refute pipe 12, refute pipe 12 and pass in the thermal sleeve 11 and stretch out.
Printing opacity closed container 6 is communicated with the negative pressure source timesharing that vacuum does not wait by the vacuum pipe network.The vacuum pipe network comprise exhaust passage 13, exhaust arterial highway 14 and be serially connected with the exhaust passage and the exhaust arterial highway on as the automatic valve such as the automatic braking flow-limiting valve 15 of TT﹠C system part.Each printing opacity closed container 6 is compiled to negative pressure source in exhaust passage 13; Perhaps exhaust passage 13 compile each printing opacity closed container 6 to exhaust arterial highway 14, exhaust arterial highway 14 compiles each exhaust passage 13 to roughing pump 16 and high-vacuum pump 17.The evacuation process of various embodiments of the present invention is: open normally close valve 18, close 16 pairs of each printing opacity closed containers 6 of normally open valve 19 usefulness roughing pumps and be evacuated to setting value; Close normally close valve 18 then, open normally open valve 19 and switch and insert high-vacuum pumps 17 and continue to vacuumize.Show the vacuum of respectively organizing printing opacity closed container 6 with apparatus measures simultaneously.Unusually then close relevant automatic braking flow-limiting valve 15 as certain printing opacity closed container 6 vacuum state.Adopting two-stage negative pressure source roughing pump 16 and high-vacuum pump 17 relays to vacuumize suitable initial big flow bleeds and the job requirement of condition of high vacuum degree at ordinary times.
Among Fig. 1 embodiment, absorber 9 changes solar energy into heat energy and offers evaporimeter 7; Condenser 4 is dispersed into heat energy in the atmosphere outside.In a vacuum, as the absorber 9 of thermal apparatus high and low temperature thermal source and condenser 4 at interval 0.5mm just can keep adiabatci condition, so can make various ultra-thin evacuated flat panel solar heat utilization device.
Among Fig. 1 embodiment, seawater forms steam in evaporimeter 7, and steam condenses into water and finishes desalinization in condenser 4 then.The temperature of vacuum heat-collecting and efficient are all very high, can adopt the multi-effect distilling technology to improve fresh water yield.Imitate distillation with 6 and calculate every m
2Can produce 50 liters of fresh water every day at most, its fresh water cost can be low to moderate 14 yuan/ton.
Among Fig. 2, each connection end of connector 20 both sides is remained silent, the tubulose of an end band sheath 1 sees through body 2 and constitutes an integral type printing opacity closed container 6.Connector 20 also connects refuting of U type tube plate absorber 9 and manages 12.For reducing two hot short circuits of refuting between the pipe 12, can adopt the thermal sleeve of introducing as Fig. 1 embodiment 11.Absorber 9 two ends of Fig. 2 embodiment can not move freely and contact with printing opacity closed container 6.
Fig. 2 embodiment is at solar irradiation intensity 500w/m
2Under the condition, just can export 160 ℃ of heat energy in 10 minutes.
Among Fig. 3, the tubulose that connects two one ends closing ins with connector 20 sees through integral type printing opacity closed container 6 of body 2 formations.Printing opacity closed container 6 adopts a metal bellows flexible member sealed interface 21, makes to refute when pipe 12 expands with heat and contract with cold and can freely stretch.
Fig. 3 embodiment compares with the mode of all-glass vacuum thermal-collecting tube interpolation metal flow passage: few one deck inner glass tube, and light-receiving area increases by 11%; Solar radiation long metal heat transfer of for once average 7mm on absorber just reaches heat transfer medium, and thermal resistance is very little.When being used for one dimension condensation high temperature thermal-arrest, the heat collector that length is 40 meters, the single tube power output can reach 40kw.
Fig. 4 embodiment adopts U type connector 22 homonymies to connect two tubuloses that are arranged in parallel and sees through body 2.U type connector 22 inner spaces are enough big, bump less than the solar energy collecting use device 23 that moves because of expanding with heat and contract with cold.Have material-saving and reliable advantage.Also can connect four tubuloses that are arranged in parallel with three U type connectors and see through body.
The deflection transparent sheet that Fig. 5 embodiment adopts a slice to be shaped on one-sided small ogive 24 arrays that are communicated with separately on it is called for short logical sheet 25, two cover sheets 26 and the split type printing opacity closed containers 6 that cladding glass 27 is made three arranged stacked, isolated mutually.Also available logical sheet 25 is made a split type printing opacity closed container 6 of deflection with cover sheet 26.Also can sheet 25 be attached on the cladding glass 27 and sealing around the logical sheet 25 is constituted a split type printing opacity closed container 6 with leading to.
One-sided being communicated with separately of thin slice among Fig. 5 embodiment helps exhaust.Small ogive 24 arrays are in order to form the vacuum heat-insulation space, also in order to resist the distortion that negative pressure of vacuum causes.Adopt small ogive 24 arrays can omit support member.Two smooth surfaces of small ogive 24, little to the distortion of direct light, actual product can accomplish to influence hardly vision.Small ogive 24 is small-sized, here for directly perceived and amplify and simplify and draw.The shape of small ogive 24 can have for example thin and long bell jar shape of many kinds as required.Cover sheet 26 is used for constituting the split type printing opacity closed container 6 of tabular with logical sheet 25 and forms active vacuum heat-insulating layer, covers sheet 26 surfaces and also can be shaped on one-sided small ogive 24 arrays that are communicated with separately to increase anti-pressure ability and convenient and smooth surface adhesive.Can there be clear and definite boundary between logical sheet 25 and the cover sheet 26.
Also can be at the split type printing opacity closed container of the arranged outside of glass of building, and on the glass of split type printing opacity closed container, logical sheet or cover sheet, one-way viewable coating, ultraviolet isolating coating or the colour filter film that can only from inside outwards see is set.
Have performance, color and flexible logical sheet, cover sheet and the thin slice printing opacity closed container of various needs with the plastics manufacturing, have cost low, non-friable, can curl, the advantage of easy transportation and installation.Deflection printing opacity closed container product weight with three layers of thin slice manufacturing can be low to moderate the hundreds of grams of every square meter, can directly be bonded on glass.Make the window of building or the function that cladding glass can obtain required daylighting, insulation, big visual field view and minimizing ultraviolet radiation simultaneously.A plurality of split type printing opacity closed containers can be set on the glass curtain wall form array.Here, regard all the indoor object that is subjected to illumination as solar energy collecting utilize the heating load in the system.
Even adopt pressure differential＞0 between its pressure and the atmospheric pressure ,≤0.1kg/cm
2Negative pressure source and band thin slice comprise that the printing opacity closed container of logical sheet and cover sheet is communicated with and be used for glass of building and form the hollow thermal insulation layer, also have heat preservation energy-saving, negative pressure adhesive, negative pressure tension force, sound insulation, dry the various plated films that effectively are difficult for dewfall, make printing opacity closed container inwall away from damp-heat air prolongation plated film service life, in light weight, cost is low and advantage such as easy enforcement.
The mode of vacuumizing of thin slice printing opacity closed container can be simplified and lowers the requirement, and for example adopts the fish jar inflator pump to be extracted into 0.95 atmospheric pressure.Even split type its vacuum of printing opacity closed container of the cladding glass thin slice multilayer of Fig. 5 embodiment still can be with the about 6.21w/ (m of heat loss coefficient from single-glass all near atmospheric pressure
2K) be reduced to about 1.5-3.2w/ (m of low-e double glazing
2K) even lower.In 28 ℃ of indoor/outdoor temperature-differences, the heating power of saving can reach 131.8w/m
2Its light transmission and sound insulation value are close with the low-e double glazing.Because negative pressure tension force is arranged, its texture and cleanablity are also close with glass.
On cladding glass, paste glass again and form a split type printing opacity closed container, can make its heat loss coefficient be reduced to 0.7w/ (m with active vacuum
2K), and to cladding glass produce harmful stress hardly.Pay the fastest can in 18 months, the withdrawal of its investment because of reducing energy cost.Even this split type printing opacity closed container adopts pressure differential＞0 between its pressure and the atmospheric pressure ,≤0.1kg/cm
2Negative pressure source form that hollow is heat insulation also to have bad working environments and the inner phenomenon of dewfall easily that can avoid hollow layer when gases are heated, they expand producing in the short time thousands of kg/m2 expansive forces.
To the solar drying device of single-glass install one additional, layer glass or thin slice constitute split type printing opacity closed container makes it to upgrade to active vacuous solar energy drying unit drying efficiency is significantly improved, its investment can be regained in three months.
Claims (10)
1. provide the method for vacuum heat-insulation for solar energy system with negative pressure source: form an active vacuous solar energy with printing opacity closed container, solar energy collecting use device, TT﹠C system and negative pressure source and collect the system that utilizes, the printing opacity closed container comprises having through body, embedded with solar collects use device or the integral type printing opacity closed container integrally manufactured with the solar energy collecting use device, also comprises the split type printing opacity closed container that has through body and non-embedded with solar collection use device; The solar energy collecting use device comprises absorber, thermal apparatus, thermoelectric element and heating load; Negative pressure source such as vavuum pump are communicated with the formation vacuum heat-insulating layer with the printing opacity closed container.
2. collect according to the active vacuous solar energy of the described method manufacturing of claim 1 and utilize system, form by printing opacity closed container, solar energy collecting use device, TT﹠C system and negative pressure source; The printing opacity closed container comprises having through body, embedded with solar collects use device or the integral type printing opacity closed container integrally manufactured with the solar energy collecting use device, also comprises the split type printing opacity closed container that has through body and non-built-in solar energy collecting use device; The solar energy collecting use device comprises absorber, thermal apparatus, thermoelectric element and heating load; Negative pressure source such as vavuum pump are extracted the gas in the printing opacity closed container out and are formed vacuum heat-insulating layer; For the opposing negative pressure can be used support member; Each printing opacity closed container can be isolated with valve; The desirable different shape of printing opacity closed container; See through body edge or port and can wrap up the bonding sheath, it is characterized in that containing the exhaust passage between printing opacity closed container and the negative pressure source.
3. system according to claim 2 is characterized in that the printing opacity closed container is communicated with the negative pressure source timesharing that vacuum does not wait by the vacuum pipe network.
4. according to claim 2 or 3 described systems, it is characterized in that containing the instrument of measuring display transparent closed container vacuum.
5. according to claim 2 or 3 described systems, it is characterized in that the printing opacity closed container contains a recessed thermal sleeve, the thermal sleeve inner end is tightly connected and refutes pipe, refutes pipe and passes in the thermal sleeve and stretch out.
6. according to claim 2 or 3 described systems, it is characterized in that containing a homonymy and connect the U type connector that tubulose sees through body.
7. according to claim 2 or 3 described systems, it is characterized in that containing and on cladding glass, paste the split type printing opacity closed container that glass forms again.
8. according to claim 2 or 3 described systems, it is characterized in that containing the split type printing opacity closed container that a deflection transparent sheet that is shaped on the one-sided small arch body array that is communicated with separately on it with a slice is called for short that logical sheet is attached on the glass plate and sealing around the logical sheet is constituted; Perhaps contain the logical sheet of a usefulness and cover the split type printing opacity closed container of deflection that sheet is made.
9. system according to claim 8 is characterized in that containing the split type printing opacity closed container that places the glass of building outside, has one-way viewable coating, ultraviolet isolating coating or colour filter film on the glass of described printing opacity closed container, logical sheet or the cover sheet.
10. system according to claim 8 is characterized in that containing pressure differential＞0 between its pressure and the atmospheric pressure ,≤0.1kg/cm
2Negative pressure source.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008100388933A CN101603737A (en) | 2008-06-12 | 2008-06-12 | The method and apparatus of vacuum heat-insulation is provided for solar energy system with negative pressure source |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008100388933A CN101603737A (en) | 2008-06-12 | 2008-06-12 | The method and apparatus of vacuum heat-insulation is provided for solar energy system with negative pressure source |
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| CN101603737A true CN101603737A (en) | 2009-12-16 |
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| CNA2008100388933A Pending CN101603737A (en) | 2008-06-12 | 2008-06-12 | The method and apparatus of vacuum heat-insulation is provided for solar energy system with negative pressure source |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104567015A (en) * | 2013-10-18 | 2015-04-29 | 彭岫麟 | Solar thermal collecting system |
| US9976777B2 (en) | 2014-08-05 | 2018-05-22 | Hsiu-Lin Peng | Solar thermal collecting system |
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| JP2007333364A (en) * | 2006-06-16 | 2007-12-27 | Kokusai Gijutsu Kaihatsu Co Ltd | Window glass for vacuum solar heat collection device |
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| CN104567015A (en) * | 2013-10-18 | 2015-04-29 | 彭岫麟 | Solar thermal collecting system |
| US9976777B2 (en) | 2014-08-05 | 2018-05-22 | Hsiu-Lin Peng | Solar thermal collecting system |
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