CN114658331A - Thermal response type intelligent color-changing window based on nano fluid - Google Patents
Thermal response type intelligent color-changing window based on nano fluid Download PDFInfo
- Publication number
- CN114658331A CN114658331A CN202210468736.6A CN202210468736A CN114658331A CN 114658331 A CN114658331 A CN 114658331A CN 202210468736 A CN202210468736 A CN 202210468736A CN 114658331 A CN114658331 A CN 114658331A
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- fluid
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- window
- cavity
- window frame
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- 239000012530 fluid Substances 0.000 title claims abstract description 50
- 239000011521 glass Substances 0.000 claims abstract description 28
- VHUUQVKOLVNVRT-UHFFFAOYSA-N Ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 claims abstract description 24
- 235000011114 ammonium hydroxide Nutrition 0.000 claims abstract description 24
- 238000007639 printing Methods 0.000 claims abstract description 13
- QGZKDVFQNNGYKY-UHFFFAOYSA-N ammonia Natural products N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 claims abstract description 11
- NLXLAEXVIDQMFP-UHFFFAOYSA-N Ammonium chloride Substances [NH4+].[Cl-] NLXLAEXVIDQMFP-UHFFFAOYSA-N 0.000 claims abstract description 8
- 238000009434 installation Methods 0.000 claims abstract description 5
- 230000035699 permeability Effects 0.000 claims abstract description 3
- 238000012545 processing Methods 0.000 claims abstract description 3
- 239000002105 nanoparticle Substances 0.000 claims description 14
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 claims description 10
- 239000002245 particle Substances 0.000 claims description 8
- 229910044991 metal oxide Inorganic materials 0.000 claims description 6
- 150000004706 metal oxides Chemical class 0.000 claims description 6
- 239000000203 mixture Substances 0.000 claims description 6
- 239000000243 solution Substances 0.000 claims description 5
- 239000007864 aqueous solution Substances 0.000 claims description 4
- 239000002082 metal nanoparticle Substances 0.000 claims description 4
- 239000002904 solvent Substances 0.000 claims description 4
- 239000000463 material Substances 0.000 claims description 3
- 229910000906 Bronze Inorganic materials 0.000 claims description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 2
- OHUPZDRTZNMIJI-UHFFFAOYSA-N [Cs].[W] Chemical compound [Cs].[W] OHUPZDRTZNMIJI-UHFFFAOYSA-N 0.000 claims description 2
- 239000000956 alloy Substances 0.000 claims description 2
- 229910045601 alloy Inorganic materials 0.000 claims description 2
- 239000010974 bronze Substances 0.000 claims description 2
- KUNSUQLRTQLHQQ-UHFFFAOYSA-N copper tin Chemical compound [Cu].[Sn] KUNSUQLRTQLHQQ-UHFFFAOYSA-N 0.000 claims description 2
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 claims description 2
- SKRWFPLZQAAQSU-UHFFFAOYSA-N stibanylidynetin;hydrate Chemical compound O.[Sn].[Sb] SKRWFPLZQAAQSU-UHFFFAOYSA-N 0.000 claims description 2
- 238000002834 transmittance Methods 0.000 abstract description 13
- 238000001228 spectrum Methods 0.000 abstract description 7
- 230000015572 biosynthetic process Effects 0.000 abstract description 3
- 230000005855 radiation Effects 0.000 description 10
- 238000002955 isolation Methods 0.000 description 6
- 238000000926 separation method Methods 0.000 description 3
- 230000003595 spectral effect Effects 0.000 description 3
- 230000007547 defect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- XOLBLPGZBRYERU-UHFFFAOYSA-N tin dioxide Chemical compound O=[Sn]=O XOLBLPGZBRYERU-UHFFFAOYSA-N 0.000 description 2
- 229910001887 tin oxide Inorganic materials 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052787 antimony Inorganic materials 0.000 description 1
- WATWJIUSRGPENY-UHFFFAOYSA-N antimony atom Chemical compound [Sb] WATWJIUSRGPENY-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000011229 interlayer Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
- E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
- E06B3/00—Window sashes, door leaves, or like elements for closing wall or like openings; Layout of fixed or moving closures, e.g. windows in wall or like openings; Features of rigidly-mounted outer frames relating to the mounting of wing frames
- E06B3/66—Units comprising two or more parallel glass or like panes permanently secured together
- E06B3/67—Units comprising two or more parallel glass or like panes permanently secured together characterised by additional arrangements or devices for heat or sound insulation or for controlled passage of light
- E06B3/6715—Units comprising two or more parallel glass or like panes permanently secured together characterised by additional arrangements or devices for heat or sound insulation or for controlled passage of light specially adapted for increased thermal insulation or for controlled passage of light
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B5/00—Optical elements other than lenses
- G02B5/20—Filters
- G02B5/22—Absorbing filters
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Engineering & Computer Science (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Joining Of Glass To Other Materials (AREA)
Abstract
A thermal response type intelligent color-changing window based on nanometer fluid comprises a piston, a window frame and high light-transmitting glass; two high printing opacity glass seal installation in the window frame, and two high printing opacity glass interval arrangements, cavity in window frame and two high printing opacity glass formation, it has the thermal-insulated nanometer fluid to the high absorptivity of near infrared ray and ultraviolet ray and to the high permeability of visible light to hold in the cavity, processing has aqueous ammonia solution chamber and nanometer fluid chamber from top to bottom in arbitrary mullion of window frame, aqueous ammonia solution chamber and nanometer fluid chamber link up, and be provided with between the two with the cavity sealed and slidable piston, nanometer fluid chamber and cavity intercommunication. The invention can reduce indoor cold load in summer, can keep full spectrum transmittance of the window in winter, and can realize high-efficiency utilization of indoor solar heat.
Description
Technical Field
The invention relates to a building energy-saving technology, in particular to a thermal response type intelligent color-changing window based on nanofluid.
Background
The window serves as a transparent maintenance structure of the building, which has a great influence on the building load. From the perspective of controlling the indoor photo-thermal environment of a building, all energy of sunlight needs to be introduced into the room as much as possible in winter so as to reduce indoor thermal load; in summer, on the premise of not influencing indoor natural lighting, the sunlight energy entering the room through the window is reduced, and the cold load of the air conditioner is reduced.
The solar spectral energy is mainly concentrated in the wavelength range of 300-3000nm, wherein the wavelength of 380-760nm is the visible light part. If the thermal insulation requirement of the building in summer is considered, the wavelength bands except the visible light need to be isolated from the outside (namely, the spectral energy in other wavelength bands is filtered) so as to realize the purpose of reducing the indoor cooling load while transmitting the visible light. However, (1) the existing energy-saving glass window mainly depends on the surface coating technology to reflect infrared rays, so as to reduce the heat gain of solar radiation entering the room. (2) The design can reduce the cold load of the building in summer, but the solar radiation heat gain in the building in winter can be negatively influenced. (3) Even if some thermochromic glass can adaptively adjust solar radiation to heat according to outdoor temperature environment, the current thermochromic glass has the defects of low visible light transmittance, weak infrared regulation and control capability and the like.
Disclosure of Invention
The invention provides a thermal response type intelligent color-changing window based on nanofluid, aiming at overcoming the defects of the prior art.
A thermal response type intelligent color-changing window based on nanometer fluid comprises a piston, a window frame and high light-transmitting glass; two high printing opacity glass seal installation in the window frame, and two high printing opacity glass interval arrangements, cavity in window frame and two high printing opacity glass formation, it has the thermal-insulated nanometer fluid to the high absorptivity of near infrared ray and ultraviolet ray and to the high permeability of visible light to hold in the cavity, processing has aqueous ammonia solution chamber and nanometer fluid chamber from top to bottom in arbitrary mullion of window frame, aqueous ammonia solution chamber and nanometer fluid chamber link up, and be provided with between the two with the cavity sealed and slidable piston, nanometer fluid chamber and cavity intercommunication.
Compared with the prior art, the invention has the beneficial effects that:
1. the invention utilizes the special optical characteristics of the nano fluid to selectively absorb and selectively transmit the spectrum of sunlight, thereby realizing the solar photo-thermal separation;
2. the invention can spontaneously determine whether to fill the nano fluid into the glass hollow cavity or not according to the indoor heat demand, and fill the nano fluid into the glass interlayer in summer, thereby reducing the indoor cold load, keeping the full-spectrum transmittance of the window in winter and realizing the high-efficiency indoor utilization of solar heat.
The technical scheme of the invention is further explained by combining the drawings and the embodiment:
drawings
FIG. 1 is a schematic perspective view of the present invention;
FIG. 2 is a front view of the present invention;
FIG. 3 is a graph of experimental light transmittance of antimony doped tin oxide as nanoparticles.
Detailed Description
As shown in fig. 1-2, a thermal response type intelligent color-changing window based on nano fluid is characterized in that: comprises a piston 4, a window frame 7 and high-transparency glass 9;
two high printing opacity glass 9 seal installations are in window frame 7, and two high printing opacity glass 9 interval arrangements, cavity 11 in window frame 7 and two high printing opacity glass 9 formation, it has the thermal-insulated nanofluid 10 to the high absorptivity of near infrared ray and ultraviolet ray and to the high transmissivity of visible light to hold in the cavity 11, it has aqueous ammonia solution chamber 2 and nanometer fluid chamber 5 to process from top to bottom in any one mullion of window frame 7, aqueous ammonia solution chamber 2 and nanometer fluid chamber 5 link up, and be provided with between the two with cavity seal and slidable piston 4, nanometer fluid chamber 5 and cavity 11 intercommunication.
Further, the mass percentage concentration of the ammonia water in the ammonia water solution cavity 2 is 28-32%. The saturation temperature is about 25-35 ℃.
The thermal response type intelligent color-changing window can automatically determine whether to fill the hollow cavity 11 with the heat insulation nano fluid 10 or not based on the outdoor temperature. In summer, the energy of ultraviolet and infrared wave bands in the sunlight is separated through the heat-insulating nanofluid 10, the sunlight is filtered into a cold light source, and the indoor heat load is reduced; solar radiation energy is introduced into the room in a full spectrum mode in winter, and indoor heat load is reduced.
When the outdoor temperature of the intelligent color-changing window is high, the solubility of ammonia water in the window frame 7 is reduced, the piston is extruded to move downwards spontaneously, and the heat-insulating nano fluid 10 is pressed to flow into the hollow cavity 11, so that the color-changing window is endowed with a heat-insulating effect; when the outdoor temperature is lower, the solubility of the ammonia water is increased, the ammonia gas in the ammonia water solution cavity 2 is dissolved into the ammonia water, the piston 4 is drawn to move upwards, so that the nano fluid 10 in the hollow cavity 11 flows into the nano fluid cavity 5, and the color-changing window is changed into the high-transmittance glass window again. The embodiment responds to high temperature and high point in summer, and when sunlight penetrates through a window, the energy of ultraviolet and infrared wave bands is isolated on the side of the window, so that sunlight entering a room is used as a cold light source, and indoor solar energy is reduced; the embodiment responds to the low-temperature characteristic in winter, introduces full-spectrum solar energy into the room, and maximizes the indoor solar energy heating.
Further, the high light-transmitting glass 9 is quartz glass, and has a high transmission characteristic to a full spectrum of solar energy. The solvent of the nano fluid 10 is ethylene glycol aqueous solution, the particles in the fluid are metal nano particles or metal oxide nano particles, and by the arrangement, the absorption peaks of different types of nano particles to different solar spectrums are the same, and high absorptivity to near infrared rays and ultraviolet rays and high transmissivity to visible light can be realized by mixing various specific nano particles.
Preferably, the metal oxide nanoparticles are antimony tin oxide particles or tungsten cesium bronze particles. The solvent of the nano fluid 10 is glycol aqueous solution, and the particles in the fluid are nano particle blends with different shapes and different materials. The nanoparticle blend is a blend of metal nanoparticles and metal oxide nanoparticles. When sunlight penetrates through the nanofluid, energy in ultraviolet and near infrared wave bands is absorbed and intercepted by the nanofluid, and visible light can directly penetrate through the light splitting glass, so that the photo-thermal separation of solar energy can be realized.
The spectral transmittances at an optical length of 1cm and ATO mass concentrations of 5ppm, 10ppm, 20ppm, 50ppm, and 100ppm are given in FIG. 3, taking antimony-doped tin oxide (ATO) nanofluids as an example. Wherein, at the concentration of 5ppm, the visible light transmittance of the ATO nanofluid is 93.2 percent, and the solar radiation isolation rate is 25.7 percent; under the concentration of 10ppm, the visible light transmittance of the ATO nanofluid is 91.9%, and the solar radiation isolation rate is 27.4%; under the concentration of 20ppm, the visible light transmittance of the ATO nanofluid is 86.1 percent, and the solar radiation isolation rate is 34.1 percent; at the concentration of 50ppm, the visible light transmittance of the ATO nanofluid is 77.7 percent, and the solar radiation isolation rate is 43.2 percent; at the concentration of 100ppm, the visible light transmittance of the ATO nanofluid is 63.5%, and the solar radiation isolation rate is 57.1%. It can be seen that as the concentration of the nanoparticles in the nanofluid increases, the visible light transmittance gradually decreases, and the solar radiation isolation rate gradually increases. The photo-thermal separation of solar energy in winter and summer can be realized.
As shown in fig. 1-2, typically, the piston 4 is a rubber piston. So set up, use convenient for material collection, two high printing opacity glass 9 pass through sealing strip 8 seal installation in window frame 7, and sealing strip 8 guarantees that the nanofluid can not flow out from the window seam.
In one embodiment, the window frame 7 is an alloy window frame. The window frame 7 is made of aluminum or other metal materials, but copper (which is easily corroded by ammonia water) cannot be used, and in addition, the ammonia water arranged in the ammonia water solution cavity 2 is strictly sealed. The nano-fluid cavity 5 is communicated with the hollow cavity 11 through the nano-fluid inlet and outlet 6.
In another embodiment, an air hole 1 is formed in a window frame of the hollow cavity 11, and the air hole 1 is a pressure sensing air hole and is opened only when the pressure reaches a certain degree, so as to ensure that the hollow glass and the hollow cavity 11 operate normally and overflow the air hole 1.
In yet another embodiment, the hollow cavity 11 has a thickness of 1-2 mm. So set up, less dosage of aqueous ammonia is made to less thickness chamber.
Working process
When the outdoor temperature of the intelligent color-changing window is higher, the solubility of ammonia water in the window frame 7 is reduced, the piston 4 is extruded to move downwards spontaneously, and the heat-insulating nano fluid 10 is pressed to flow into the hollow cavity 11, so that the color-changing window is endowed with a heat-insulating effect; when the outdoor temperature is lower, the solubility of ammonia water is increased, ammonia gas in the ammonia water solution cavity 2 is melted into the ammonia water, the piston 4 is pulled to move upwards, so that the nano fluid 10 in the hollow cavity 11 flows into the nano fluid cavity 5, and the color-changing window is changed into the high-transmittance glass window again. The embodiment responds to high temperature and high point in summer, and when sunlight penetrates through the window, the energy of ultraviolet and infrared wave bands is isolated on the side of the window, so that sunlight entering the room is a cold light source, and indoor solar energy is reduced to be heated.
The present invention is not limited to the above embodiments, and those skilled in the art can make various changes and modifications without departing from the scope of the invention.
Claims (10)
1. A thermal response type intelligent color-changing window based on nano fluid is characterized in that: comprises a piston (4), a window frame (7) and high-transparency glass (9);
two high printing opacity glass (9) seal installations are in window frame (7), and two high printing opacity glass (9) interval arrangement, well cavity (11) are formed in window frame (7) and two high printing opacity glass (9), it has thermal-insulated nanometer fluid (10) to have to the high absorptivity of near infrared ray and ultraviolet ray and to the high permeability of visible light to hold in well cavity (11), processing has aqueous ammonia solution chamber (2) and nanometer fluid chamber (5) from top to bottom in arbitrary mullion of window frame (7), aqueous ammonia solution chamber (2) link up with nanometer fluid chamber (5), and be provided with between the two and seal up and slidable piston (4) with the cavity, nanometer fluid chamber (5) and well cavity (11) intercommunication.
2. A nano-fluid based thermally responsive smart color changing window according to claim 1, wherein: the mass percentage concentration of the ammonia water in the ammonia water solution cavity (2) is 28-32%.
3. A nano-fluid based thermally responsive smart color changing window according to claim 1, wherein: the high light-transmitting glass (9) is quartz glass.
4. A nano-fluid based thermally responsive smart color changing window according to claim 1, wherein: the solvent of the nano fluid (10) is ethylene glycol aqueous solution, and the particles in the fluid are metal nanoparticles or metal oxide nanoparticles.
5. The nano-fluid based thermally responsive smart color changing window of claim 4, wherein: the metal oxide nanoparticles are antimony tin oxide particles or tungsten cesium bronze particles.
6. A nano-fluid based thermally responsive smart color changing window according to claim 1, wherein: the solvent of the nano fluid (10) is glycol aqueous solution, and the particles in the fluid are nano particle blends with different shapes and different materials.
7. The intelligent color-changing window based on the nano-fluid thermal response type according to claim 6, wherein: the nanoparticle blend is a blend of metal nanoparticles and metal oxide nanoparticles.
8. The intelligent color-changing window based on the nano-fluid thermal response type according to claim 6, wherein: the piston (4) is a rubber piston.
9. The intelligent color-changing window based on the nano-fluid thermal response type according to claim 1, wherein: the window frame (7) is an alloy window frame.
10. The intelligent color-changing window based on the nano-fluid thermal response type according to claim 1, wherein: the thickness of the hollow cavity (11) is 1-2 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210468736.6A CN114658331A (en) | 2022-04-29 | 2022-04-29 | Thermal response type intelligent color-changing window based on nano fluid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210468736.6A CN114658331A (en) | 2022-04-29 | 2022-04-29 | Thermal response type intelligent color-changing window based on nano fluid |
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| Publication Number | Publication Date |
|---|---|
| CN114658331A true CN114658331A (en) | 2022-06-24 |
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| CN202210468736.6A Pending CN114658331A (en) | 2022-04-29 | 2022-04-29 | Thermal response type intelligent color-changing window based on nano fluid |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1932410A (en) * | 2006-09-27 | 2007-03-21 | 浙江大学 | Nano-fluid solar window type heat collector |
| CN106118611A (en) * | 2016-06-29 | 2016-11-16 | 无锡信大气象传感网科技有限公司 | A kind of hot pipe type vacuum heat collection pipe nano-fluid superconducting fluid and preparation method thereof |
| CN112593821A (en) * | 2020-12-14 | 2021-04-02 | 陈嫚婷 | Energy-saving window for building |
| CN113638676A (en) * | 2021-08-24 | 2021-11-12 | 东南大学深圳研究院 | Integrated multifunctional window based on nanofluid |
| CN215761410U (en) * | 2021-06-30 | 2022-02-08 | 江阴市华瑞德玻璃制品有限公司 | High thermal-insulated warm frame embeds tripe cavity glass |
-
2022
- 2022-04-29 CN CN202210468736.6A patent/CN114658331A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1932410A (en) * | 2006-09-27 | 2007-03-21 | 浙江大学 | Nano-fluid solar window type heat collector |
| CN106118611A (en) * | 2016-06-29 | 2016-11-16 | 无锡信大气象传感网科技有限公司 | A kind of hot pipe type vacuum heat collection pipe nano-fluid superconducting fluid and preparation method thereof |
| CN112593821A (en) * | 2020-12-14 | 2021-04-02 | 陈嫚婷 | Energy-saving window for building |
| CN215761410U (en) * | 2021-06-30 | 2022-02-08 | 江阴市华瑞德玻璃制品有限公司 | High thermal-insulated warm frame embeds tripe cavity glass |
| CN113638676A (en) * | 2021-08-24 | 2021-11-12 | 东南大学深圳研究院 | Integrated multifunctional window based on nanofluid |
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