CN113027016A - Anti-condensation heating temperature-control glass curtain wall for passive room - Google Patents
Anti-condensation heating temperature-control glass curtain wall for passive room Download PDFInfo
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- CN113027016A CN113027016A CN202110596578.8A CN202110596578A CN113027016A CN 113027016 A CN113027016 A CN 113027016A CN 202110596578 A CN202110596578 A CN 202110596578A CN 113027016 A CN113027016 A CN 113027016A
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B2/00—Walls, e.g. partitions, for buildings; Wall construction with regard to insulation; Connections specially adapted to walls
- E04B2/88—Curtain walls
- E04B2/885—Curtain walls comprising a supporting structure for flush mounted glazing panels
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- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C17/00—Surface treatment of glass, not in the form of fibres or filaments, by coating
- C03C17/34—Surface treatment of glass, not in the form of fibres or filaments, by coating with at least two coatings having different compositions
- C03C17/36—Surface treatment of glass, not in the form of fibres or filaments, by coating with at least two coatings having different compositions at least one coating being a metal
- C03C17/3602—Surface treatment of glass, not in the form of fibres or filaments, by coating with at least two coatings having different compositions at least one coating being a metal the metal being present as a layer
- C03C17/3644—Surface treatment of glass, not in the form of fibres or filaments, by coating with at least two coatings having different compositions at least one coating being a metal the metal being present as a layer the metal being silver
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- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C17/00—Surface treatment of glass, not in the form of fibres or filaments, by coating
- C03C17/34—Surface treatment of glass, not in the form of fibres or filaments, by coating with at least two coatings having different compositions
- C03C17/36—Surface treatment of glass, not in the form of fibres or filaments, by coating with at least two coatings having different compositions at least one coating being a metal
- C03C17/38—Surface treatment of glass, not in the form of fibres or filaments, by coating with at least two coatings having different compositions at least one coating being a metal at least one coating being a coating of an organic material
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C2/00—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels
- E04C2/54—Slab-like translucent elements
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
- F24S20/00—Solar heat collectors specially adapted for particular uses or environments
- F24S20/60—Solar heat collectors integrated in fixed constructions, e.g. in buildings
- F24S20/66—Solar heat collectors integrated in fixed constructions, e.g. in buildings in the form of facade constructions, e.g. wall constructions
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
- F24S70/00—Details of absorbing elements
- F24S70/20—Details of absorbing elements characterised by absorbing coatings; characterised by surface treatment for increasing absorption
- F24S70/25—Coatings made of metallic material
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- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C2217/00—Coatings on glass
- C03C2217/40—Coatings comprising at least one inhomogeneous layer
- C03C2217/43—Coatings comprising at least one inhomogeneous layer consisting of a dispersed phase in a continuous phase
- C03C2217/44—Coatings comprising at least one inhomogeneous layer consisting of a dispersed phase in a continuous phase characterized by the composition of the continuous phase
- C03C2217/445—Organic continuous phases
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- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C2217/00—Coatings on glass
- C03C2217/40—Coatings comprising at least one inhomogeneous layer
- C03C2217/43—Coatings comprising at least one inhomogeneous layer consisting of a dispersed phase in a continuous phase
- C03C2217/46—Coatings comprising at least one inhomogeneous layer consisting of a dispersed phase in a continuous phase characterized by the dispersed phase
- C03C2217/47—Coatings comprising at least one inhomogeneous layer consisting of a dispersed phase in a continuous phase characterized by the dispersed phase consisting of a specific material
- C03C2217/475—Inorganic materials
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- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C2217/00—Coatings on glass
- C03C2217/70—Properties of coatings
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- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C2218/00—Methods for coating glass
- C03C2218/10—Deposition methods
- C03C2218/11—Deposition methods from solutions or suspensions
- C03C2218/114—Deposition methods from solutions or suspensions by brushing, pouring or doctorblading
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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
Abstract
The invention provides an anti-condensation heating temperature-control glass curtain wall for a passive room, which comprises a temperature-control switch, a power supply, a temperature sensor, a frame and double-layer hollow glass, wherein the temperature-control switch is connected with the power supply; the double-layer hollow glass comprises indoor side glass and outdoor side low-e coating glass; argon is filled between the indoor side glass and the outdoor side low-e coating glass to form an argon layer; the transparent conductive coating is coated on the inner side of the indoor glass, the edge of the transparent conductive coating is coated with the conductive silver paste layer, and the rare earth nanometer heat insulation coating covers the transparent conductive coating and the conductive silver paste layer; the double-layer hollow glass is arranged on the frame; the frame is provided with a conductive silver paste connecting part which forms a closed loop with the temperature control switch and the power supply; the double-layer hollow glass is provided with a temperature sensor, and the temperature sensor is connected with a temperature control switch. The curtain wall reduces the original thickness and weight of the curtain wall through the modes of electric heating, heat insulation and heat storage and self heating, and simultaneously realizes the effects of dewing prevention and energy conservation.
Description
Technical Field
The invention relates to the field of exterior wall decoration materials for buildings, in particular to an anti-condensation heating temperature-control glass curtain wall for a passive house.
Background
The passive house is a brand new energy-saving building house, and the total amount of all consumed primary energy sources does not exceed 120 kilowatt-hour/(square meter and year) by fully utilizing renewable energy sources. The wide-range popularization and popularization of the passive house building can greatly reduce the building energy consumption and carbon emission of the whole society, and has important significance for the economic development of China. However, it is not easy to realize such low building energy consumption, and it is necessary to greatly improve the existing building materials, especially for modern large-scale high-rise buildings, the glass curtain wall is basically adopted as the exterior wall enclosure of the building, which is a great test for the heat insulation performance of the glass curtain wall.
Reducing building energy consumption and having important significance for realizing 'carbon peak reaching', 'carbon neutralization' and green development in the whole society. At present, the energy consumption of buildings mainly lies in the use of temperature regulating equipment, such as a summer air conditioner and a winter heating device which are used in a large range for a long time. The fundamental reason is that wall parts such as internal and external walls, floors, roofs, glass doors and windows and the like of buildings have poor heat insulation performance, and the exchange of heat between the indoor and the outdoor is difficult to effectively prevent. Among the wall parts of buildings, the glass curtain wall has the worst heat insulation performance, because the glass curtain wall promotes the transmission of infrared radiation energy while ensuring the transmission of visible light.
In the prior art, there are two common methods for improving the heat-insulating property of a glass curtain wall, the first method is to deposit a material with infrared reflection property on the surface of glass, for example, to deposit a nano-silver layer on the surface of glass by magnetron sputtering to realize the reflection of infrared rays, namely, Low-E glass. However, this method requires large-scale processing equipment such as magnetron sputtering, requires coating treatment to be performed in a factory before glass shipment, and is not suitable for on-site construction treatment. On the other hand, the silver is rapidly oxidized by exposing it to air due to its own properties, thereby losing infrared reflection performance. At present, the Low-E glass generally adopts a double-sided hollow glass design structure, inert gas is filled in a hollow layer to inhibit silver layer oxidation, however, in long-term use, the Low-E glass still fails due to inert gas leakage.
The second method is to paint a coating material having infrared absorption properties on the glass. W02005059013A1 discloses a preparation method of a polymer film for blocking infrared light transmission. According to the invention, an Indium Tin Oxide (ITO) material with infrared absorption performance is ground and dispersed to a polyvinyl butyral and dimethyl formamide system, and then the material is printed on the surface of glass, so that the glass has good heat insulation performance. CN101792636A discloses a UV-cured aqueous thermal insulation nanocomposite coating material, and the film obtained after curing has good transparency and thermal insulation performance. CN107502085B prepares an M-CuxSy material, and after the M-CuxSy material is dispersed and coated on the surface of a substrate, the infrared barrier property of the substrate can be improved.
Such methods, which utilize infrared absorbing materials to selectively absorb infrared light in a certain wavelength band, have problems. On the one hand, in the prior art, the ITO material has a strong absorption effect on infrared rays in a certain waveband between 800-. The sunlight has energy distribution in the near-infrared band of 800-. On the other hand, when the outdoor temperature is lower than the indoor temperature, the insulating property of the material is poor. This is mainly because when the outdoor temperature is lower than the indoor temperature, heat is first radiated from the inside of the glass to the outside in the form of far infrared rays, which causes the temperature of the air near the inside of the glass to be lower than the average indoor temperature and forms a temperature difference. Under the action of the temperature gradient, heat flows from the indoor high-temperature area to the indoor low-temperature area through the form of heat convection. Finally, the curtain wall glass can become a heat outlet of the whole room, so that the heat is continuously transmitted to the outside. The coating only has good absorption effect on near infrared rays, and has extremely limited indoor heat preservation effect.
In view of the above, there is a need in the market for a new type of glass curtain wall, which has better thermal insulation properties, especially protection against near infrared light, and which avoids the occurrence of light pollution.
Disclosure of Invention
In view of the above, the invention aims to provide a dewing-proof heating temperature-control glass curtain wall for a passive room, which reduces the original thickness and weight of a passive window through the modes of electric heating, heat insulation and heat storage and self-heating, and simultaneously realizes the dewing-proof and energy-saving effects.
An anti-condensation heating temperature control glass curtain wall for a passive room comprises a temperature control switch, a power supply, a temperature sensor, a frame and double-layer hollow glass;
the double-layer hollow glass comprises indoor side glass, outdoor side low-e coating glass, a transparent conductive coating, a conductive silver paste layer and a rare earth nano heat insulation coating; the interval between the indoor side glass and the outdoor side low-e coating glass is 12mm, and argon is filled in the middle to form an argon layer; the transparent conductive coating is coated on one side of the indoor side glass, which is opposite to the outdoor side low-e coating glass, the edge of the transparent conductive coating is coated with a conductive silver paste layer with the thickness of 1.5-100nm, and the rare earth nano heat insulation coating covers the transparent conductive coating and the conductive silver paste layer; the thickness of the rare earth nanometer heat insulation coating is 0.5-80nm, and the thickness of the transparent conductive coating is 0.3-90 nm; the transparent conductive coating is formed by mixing PEDOT, PSS and resin, adding an ultraviolet absorbent and a curing agent, and uniformly stirring, wherein the mixing ratio of the PEDOT, the PSS and the resin is (0.5-3): 2;
the double-layer hollow glass is arranged on the frame, and the conductive silver paste layer is welded with electrodes and a connecting circuit; the frame is provided with a conductive silver paste connecting part, and the conductive silver paste connecting part, the temperature control switch and the power supply form a closed loop; and the double-layer hollow glass is provided with a temperature sensor, and the temperature sensor is connected with a temperature control switch.
The purpose of the transparent electric heating layer is to form a conductive layer on the surface of the glass, and the electric heating layer is heated by applying current. The glass-layer-glass-layer heat insulation device has the advantages that when outdoor temperature is lower than indoor temperature, air close to the inner side of glass is slightly heated through an electric heating effect, temperature gradient between the air close to a glass layer and the indoor air is reduced, heat convection.
Compared with the traditional resistance wire material, the transparent conductive coating material can avoid the damage to the light transmission and the beauty of the glass.
The conductive layer functions to connect the whole glass in series and to bond the electrodes.
The rare earth nanometer heat-insulating coating has four functions:
first, it is required to prevent current from breaking down the electrothermal layer resin as an insulating protective layer, and particularly to prevent the breakdown from occurring during the electrothermal process.
Second, the layer needs to provide protection for the electrothermal layer against aging and weathering. Generally, the conductivity of the transparent electrothermal layer is greatly influenced by external environments, such as the pH of the surrounding medium, ionic strength, ultraviolet irradiation environment, and the like. Therefore, the surface thereof needs to be coated with a resin layer to improve its weather resistance and to achieve effective shielding of more than 99% of ultraviolet rays.
Thirdly, the layer also serves as a thermal barrier layer, and needs to be able to effectively absorb infrared rays of 750-. In hot summer, after sunlight irradiates the surface of the coating, the coating can completely block infrared rays invisible to human eyes with the wavelength of 750-2500nm, and excellent heat insulation performance is realized.
Finally, the layer also has a self-heating heat storage effect. Under the irradiation of sunlight, the coating can block and absorb infrared rays with the wavelength of 750-. In the prior art, although the existing electric heating glass or electric heating coating can play a role in heat preservation in a room through a heat barrier effect, the electric heating glass or the electric heating coating needs to continuously consume electric energy. Compared with the prior art, the scheme of the invention can greatly reduce the power consumption by fully utilizing the solar energy while continuously preserving heat.
Further, the resin is a mixture of two or more of polyurethane, silicone resin, epoxy resin and acrylic resin.
Further, the organic silicon resin is one or a mixture of more than two of SI-100, SI-400, PSI-050, PSI-060, ACR902, ACR-903 and ACR-904A.
Further, the ultraviolet absorbent is one or a mixture of more than two of phenyl salicylate, UV-P, UV-O, UV-9, UV531, UVP-327 and cerium dioxide.
Further, the curing agent is any one of aliphatic amine, alicyclic enantiomer, acid anhydride curing agent or polyamide.
Further, the rare earth nanometer thermal insulation coating is prepared by a method comprising the following steps: stirring and mixing rare earth boride and cesium tungsten bronze powder, dispersing the mixture in a dispersion medium, and then preparing uniformly dispersed high-permeability rare earth nano composite heat insulation slurry by sanding and ultrasonically treating the dispersion liquid; and then mixing the slurry with commercially available EVA master batches to form a film by tape casting, or mixing the slurry with PVB resin powder and 3GO plasticizer to form a film by tape casting.
Further, the rare earth boride is one of lanthanum boride, cerium boride, samarium boride, europium boride, praseodymium boride, neodymium boride, gadolinium boride and yttrium boride.
Compared with the prior art, the anti-condensation heating temperature-control glass curtain wall for the passive room has the following advantages:
the glass curtain wall can greatly reduce the thickness of the existing curtain wall, the structure is more simplified, the weight of the curtain wall is reduced, the glass cost is reduced, the processing is convenient, the heat can be absorbed by utilizing the performance of the material to achieve the effects of heat insulation and heat storage, and the indoor energy consumption and the consumed power consumption of the existing curtain wall without intermittent power supply can be greatly reduced.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate an embodiment of the invention and, together with the description, serve to explain the invention and not to limit the invention. In the drawings:
FIG. 1 is a front view and a control circuit diagram of an anti-condensation heating temperature-control glass curtain wall for a passive room according to an embodiment of the present invention;
fig. 2 is a sectional view of the anti-dewing heating temperature-controlled glass curtain wall for the passive room according to the embodiment of the invention.
Description of reference numerals:
1-a temperature control switch; 2-a power supply; 3-a temperature sensor; 4-conductive silver paste junction; 5-a frame; 6-indoor side glass; 7-outdoor side low-e coating glass; 8-conductive silver paste layer; 9-transparent conductive coating; 10-rare earth nanometer thermal insulation coating; 11-argon blanket.
Detailed Description
It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used only for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.
The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.
Example 1
An anti-condensation heating temperature control glass curtain wall for a passive room comprises a temperature control switch 1, a power supply 2, a temperature sensor 3, a frame 5 and double-layer hollow glass;
the double-glazing glass comprises:
indoor side glass 6: the surface of the glass substrate is firstly coated with a layer of transparent conductive coating by roller to form a transparent conductive coating 9, and the coating is PEDOT: PSS, SI-400 and acrylic resin are mixed to form a mixture, wherein the weight ratio of the SI-400 to the acrylic resin is 3:2, the weight ratio of PEDOT to PSS to the mixed resin is 1.3:2, and then UV-9 and an acetic anhydride curing agent are mixed with the mixture, and the weight ratio of the mixture is as follows: UV-9, acetic anhydride curing agent 7:2:1, thickness 15 nm.
Conductive silver paste layer 8: the Xiamen Hansenda electronic technology limited bought the S8500 product, printed the conductive silver thick liquid on the upper and lower frame position of glass through the screen printing on the transparent conductive coating 9 face, again welded electrode and control circuit on the conductive silver thick liquid layer 8, the coating thickness was 20 nm.
Rare earth nano heat insulation coating 10: the preparation method comprises the steps of selecting lanthanum boride and cesium tungsten bronze powder in a weight ratio of 1:1, fully mixing, dispersing in PMA, mixing powder and PMA in a weight ratio of 3:10, sanding for 24 hours by using a sanding machine to obtain heat insulation slurry, adding SI-400, polyurethane modified epoxy resin, transparent hollow glass beads, a diluent and a film forming aid into the heat insulation slurry, stirring uniformly, dispersing by ultrasound to obtain a rare earth nano heat insulation coating, and rolling a layer of rare earth nano heat insulation coating on the whole glass to form a rare earth nano heat insulation coating 10 with the thickness of 80 nm.
The double-glass interval of the double-layer hollow glass is 12 mm.
As shown in fig. 1, the double-layer hollow glass is mounted on a frame 5, a conductive silver paste connection part 4 is arranged on the frame 5, and the double-layer hollow glass is communicated with a connection circuit communicated with a conductive silver paste layer in the double-layer hollow glass through the conductive silver paste connection part 4, so that the glass, a temperature control switch 1 and a power supply 2 form a closed loop; the double-layer hollow glass is provided with a temperature sensor 3, and the temperature sensor 3 is connected with a temperature control switch 1. The temperature sensor 3 transmits the temperature of the glass to the temperature control switch 1, and the temperature control switch judges the temperature to realize the on-off of the circuit. The temperature control switch 1, the temperature sensor 3 and the circuit connection mode are conventional technical means in the prior art.
The temperature of a building provided with the curtain wall is measured, the dew point temperature is 6 ℃ according to a common temperature-humidity diagram, the lowest temperature of the temperature control switch is 6 ℃ and the highest temperature of the temperature control switch is 20 ℃ under the conditions that the indoor temperature is 20 ℃ and the relative humidity is 40%, the temperature control switch is automatically turned on and is electrified to heat when the temperature of the surface of the glass is lower than 6 ℃, and the switch is automatically turned off when the temperature of the glass reaches 20 ℃. Experiments show that under the same conditions, a common glass curtain wall needs 24 hours of power-on heating, and the glass curtain wall has no dewing phenomenon after being powered on for 3 hours all day due to the heat absorption and heat storage effects of the heat insulation coating.
Example 2
The utility model provides a passive room is with antisweat heating accuse temperature glass curtain wall which characterized in that: the temperature control device comprises a temperature control switch 1, a power supply 2, a temperature sensor 3, a frame 5 and double-layer hollow glass;
the double-glazing glass comprises:
indoor side glass 6: the surface of the glass substrate is firstly coated with a layer of transparent conductive coating by roller to form a transparent conductive coating 9, and the coating is PEDOT: PSS is mixed with PSI-060 and epoxy resin to form a mixture, wherein the weight ratio of PSI-060 to epoxy resin is 1:2, the weight ratio of PEDOT to PSS to the mixed resin is 2:2, and cerium dioxide and fatty amine are mixed with the mixture, wherein the weight ratio of the mixture is as follows: ceria, fatty amine 8:3:2, thickness 22 nm.
Conductive silver paste layer 8: the Xiamen Hansenda electronic technology limited bought the S8500 product, printed the conductive silver thick liquid on the upper and lower frame position of glass through the screen printing on transparent conductive coating 9 face, again welded electrode and control circuit on the conductive silver thick liquid layer, and the coating thickness was 33 nm.
Rare earth nano heat insulation coating 10: the method comprises the steps of selecting cerium boride and cesium tungsten bronze powder according to the weight ratio of 1:1.5, fully mixing, dispersing in PMA, enabling the weight ratio of mixed powder to PMA to be 2.5:10, sanding for 24 hours by using a sand mill to obtain heat insulation slurry, adding PSI-060, epoxy resin, transparent hollow glass microspheres, a diluent and a film forming aid into the heat insulation slurry, stirring uniformly, performing ultrasonic dispersion to obtain a rare earth nano heat insulation coating, and rolling a layer of rare earth nano heat insulation coating on the whole glass to form the rare earth nano heat insulation coating 10 with the thickness of 54 nm.
The double-glass interval of the double-layer hollow glass is 12 mm.
The anti-condensation heating temperature-control glass curtain wall structure for the passive room is as in embodiment 1, and is different in that the double-layer hollow glass adopts the glass prepared by the embodiment.
And similarly, the building provided with the curtain wall is subjected to temperature measurement, the dew point temperature is 6 ℃ according to a common temperature-humidity diagram, the lowest temperature of the temperature control switch is 6 ℃ and the highest temperature of the temperature control switch is 20 ℃ under the conditions that the indoor temperature is 20 ℃ and the relative humidity is 40%, the temperature control switch is automatically turned on and is electrified for heating when the temperature of the surface of the glass is lower than 6 ℃, and the switch is automatically turned off when the temperature of the glass reaches 20 ℃. Experiments show that under the same conditions, a common glass curtain wall needs 24 hours of power-on heating, and the glass curtain wall has no dewing phenomenon because the heat insulation coating absorbs heat and stores heat and is powered on for 3.5 hours all day.
Comparative example: adopts common Low-E glass
The optical transmittance side view of the single-silver Low-e glass is compared with the solar spectrum contrast graph.
The utility model provides an anti-condensation heating accuse temperature glass curtain wall for passive room, on the basis of embodiment 1, replaces ordinary Low-E glass with double glazing glass.
TABLE 1 comparative examples 1-2 and comparative examples
It can be seen from the above table that the U values of examples 1 and 2 are significantly lower than those of the comparative example, and the higher the U value, the poorer the heat retaining property of the material. Thus, the example 1 and the example 2 have more excellent heat insulating effect than the comparative example.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (7)
1. The utility model provides a passive room is with antisweat heating accuse temperature glass curtain wall which characterized in that: comprises a temperature control switch (1), a power supply (2), a temperature sensor (3), a frame (5) and double-layer hollow glass;
the double-layer hollow glass comprises indoor side glass (6), outdoor side low-e coating glass (7), a transparent conductive coating (9), a conductive silver paste layer (8) and a rare earth nano heat insulation coating (10); the space between the indoor side glass (6) and the outdoor side low-e coating glass (7) is 12mm, and argon is filled in the middle to form an argon layer (11); the transparent conductive coating (9) is coated on one side of the indoor side glass (6) opposite to the outdoor side low-e coating glass (7), the edge of the transparent conductive coating (9) is coated with a conductive silver paste layer (8) with the thickness of 1.5-100nm, and the rare earth nanometer heat insulation coating (10) covers the transparent conductive coating (9) and the conductive silver paste layer (8); the thickness of the rare earth nanometer heat insulation coating (10) is 0.5-80nm, and the thickness of the transparent conductive coating (9) is 0.3-90 nm; the transparent conductive coating (9) is formed by mixing PEDOT, PSS and resin, adding an ultraviolet absorber and a curing agent, and uniformly stirring, wherein the mass mixing ratio of the PEDOT, PSS and resin is (0.5-3) to 2;
the double-layer hollow glass is arranged on the frame (5), and the conductive silver paste layer (8) is also welded with an electrode and a connecting circuit; a conductive silver paste connecting part (4) is arranged on the frame (5), and the conductive silver paste connecting part (4), the temperature control switch (1) and the power supply (2) form a closed loop; the double-layer hollow glass is provided with a temperature sensor (3), and the temperature sensor (3) is connected with a temperature control switch (1).
2. The anti-condensation heating temperature-control glass curtain wall for the passive room as claimed in claim 1, which is characterized in that: the resin is a mixture of two or more of polyurethane, organic silicon resin, epoxy resin and acrylic resin.
3. The anti-condensation heating temperature-control glass curtain wall for the passive room as claimed in claim 2, characterized in that: the organic silicon resin is one or a mixture of more than two of SI-100, SI-400, PSI-050, PSI-060, ACR902, ACR-903 and ACR-904A.
4. The anti-condensation heating temperature-control glass curtain wall for the passive room as claimed in claim 1, which is characterized in that: the ultraviolet absorbent is one or a mixture of more than two of phenyl salicylate, UV-P, UV-O, UV-9, UV531, UVP-327 and cerium dioxide.
5. The anti-condensation heating temperature-control glass curtain wall for the passive room as claimed in claim 1, which is characterized in that: the curing agent is any one of aliphatic amine, alicyclic enantiomer, anhydride curing agent or polyamide.
6. The anti-condensation heating temperature-control glass curtain wall for the passive room as claimed in claim 1, which is characterized in that: the rare earth nano heat insulation coating (10) is prepared by a method comprising the following steps: stirring and mixing rare earth boride and cesium tungsten bronze powder, dispersing the mixture in a dispersion medium, then preparing uniformly dispersed high-transparency rare earth nano composite heat insulation slurry by sanding and ultrasonic processing of a dispersion liquid, adding organic silicon resin, polyurethane modified epoxy resin, transparent hollow glass beads, a diluent and a film forming aid into the nano composite heat insulation slurry, stirring uniformly and performing ultrasonic dispersion to obtain rare earth nano heat insulation coating, and coating the coating on a glass substrate to form a rare earth nano heat insulation coating (10).
7. The anti-condensation heating temperature-control glass curtain wall for the passive room as claimed in claim 6, is characterized in that: the rare earth boride is one of lanthanum boride, cerium boride, samarium boride, europium boride, praseodymium boride, neodymium boride, gadolinium boride and yttrium boride.
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