Energy-saving glass curtain wall structure

Abstract

The invention discloses an energy-saving glass curtain wall structure, and relates to the technical field of building curtain walls, the energy-saving glass curtain wall structure comprises a plurality of glass plates and a plurality of frame units, each frame unit comprises a first frame, a second frame and a heat reflection coating, and the surface of the outdoor end of the second frame is coated with the heat reflection coating; the first mounting end of the first frame and the second mounting end of the second frame are oppositely connected and fixed; the first mounting end and the second mounting end can respectively clamp and fix a glass plate on the two opposite sides, perpendicular to the connecting direction, of the first mounting end and the second mounting end, the second frame further comprises a connecting section and a protective section, the second mounting end is arranged on the connecting section, and the side, away from the second mounting end, of the connecting section is fixedly clamped with the protective section; a heat reflection coating is further arranged on the outer surface of the protection section. According to the technical scheme, on the basis that glass or a frame is improved in the prior art, heat transfer is further blocked, the indoor comfort degree is improved, and energy conservation and environmental protection are facilitated.

Description

Technical Field

[0001] The invention relates to the technical field of building curtain walls, and in particular to an energy-saving glass curtain wall structure. Background Art

[0002] Curtain wall refers to the comprehensive functional system of the building's exterior wall, which has multiple functions such as windproof, waterproof, heat insulation and sound insulation. The curtain wall frame is a crucial supporting structure in this system. It mainly bears the weight of the curtain wall itself and mechanical requirements such as wind load. Since the curtain wall frame is placed outdoors for a long time, directly facing the harsh natural environment such as direct sunlight, wind and rain, its ability to block heat transfer plays an extremely critical role in the overall thermal insulation effect of the curtain wall. In the hot summer, good thermal insulation performance can significantly improve the indoor comfort, and also help energy saving and environmental protection. Summary of the invention

[0003] The main purpose of the present invention is to provide an energy-saving glass curtain wall structure, which can improve the curtain wall's ability to block heat transfer, enhance indoor comfort, and contribute to energy saving and environmental protection.

[0004] To achieve the above object, the energy-saving glass curtain wall structure proposed by the present invention comprises:

[0005] Several glass panels; and

[0006] A plurality of framework units, wherein the framework units include:

[0007] A first frame having a first mounting end;

[0008] The second frame has a second mounting end and an outdoor end opposite to the second mounting end; the first mounting end and the second mounting end are connected and fixed facing each other; on the opposite sides of the first mounting end and the second mounting end which are perpendicular to the connection direction, the first mounting end and the second mounting end can respectively clamp and fix one of the glass plates; wherein the second frame also includes a connecting section and a protective section, the second mounting end is arranged on the connecting section, and the connecting section is clamped and fixed to the protective section on a side away from the second mounting end; the outer surface of the protective section is also provided with a heat reflective coating.

[0009] In one embodiment, the heat reflective coating is configured as a ceramic coating.

[0010] In one embodiment, the ceramic coating is formed by mixing and sintering 96 parts of α-alumina powder and 4 parts of sintering aid.

[0011] In one embodiment, the thickness of the ceramic coating ranges from 0.8 mm to 1.2 mm.

[0012] In one embodiment, the porosity of the ceramic coating is no greater than 5%.

[0013] In one embodiment, the heat reflective coating is formed by flame spraying, arc spraying, plasma spraying or laser spraying.

[0014] In one embodiment, a phase-change heat storage coating is coated on the inner surface of the protection segment facing away from the heat reflective coating.

[0015] In one embodiment, the phase change thermal storage coating is configured by mixing 100 parts of neopentyl glycol coating and 15 to 40 parts of white polyurea waterproof coating.

[0016] In one embodiment, the thickness of the phase change thermal storage coating is in the range of 0.5 to 2 mm.

[0017] In one embodiment, the outer surface of the heat reflective coating is also covered with a transparent waterproof coating.

[0018] In one embodiment, the transparent waterproof coating is prepared by mixing 100 parts of polyaspartic acid ester polyurea coating and 0.2 to 1 part of polyvinylidene chloride coating.

[0019] In one embodiment, the transparent waterproof coating has a thickness ranging from 10 μm to 1000 μm.

[0020] In one embodiment, the energy-saving glass curtain wall structure also includes a solar refrigeration component, which includes a semiconductor refrigeration module and a solar photovoltaic panel. The solar photovoltaic panel is electrically connected to the semiconductor refrigeration module, and the solar photovoltaic panel and the semiconductor refrigeration module are both arranged on the outer surface of the transparent waterproof layer.

[0021] In one embodiment, the length and width of the semiconductor refrigeration module are both in the range of 40 mm to 100 mm.

[0022] In one embodiment, the solar photovoltaic panel has a width ranging from 50 mm to 200 mm and a length ranging from 100 mm to 400 mm.

[0023] In one embodiment, a heat-insulating cavity is formed between the protection section and the connecting section.

[0024] In one embodiment, the first frame is made of stainless steel.

[0025] In one embodiment, the second frame is configured to be made of stainless steel or the protection section is configured to be made of stainless steel.

[0026] The technical solution of the present invention forms a stable clamping structure by adopting a first mounting end and a second mounting end to be connected and fixed in opposite directions, which can ensure that the glass plate is firmly clamped between the frames and is not easy to fall off or shake. Compared with glass curtain walls of the same structure, this solution reflects the heat in the sunlight through the heat-reflecting coating, further blocks the heat from the frame unit to the room, improves the thermal insulation performance of the curtain wall, keeps the interior of the building at a comfortable ambient temperature, thereby reducing the burden of refrigeration equipment such as air conditioners and saving energy; the clamping setting of the connecting section and the protective section facilitates the assembly of the second frame and also facilitates the coating of the heat-reflecting coating. The energy-saving glass curtain wall structure is suitable for various high-rise buildings, commercial complexes, office buildings and other buildings that require efficient insulation and beautiful appearance. For example, in high-temperature areas in summer, the use of this energy-saving glass curtain wall structure with a heat-reflecting coating can significantly reduce the indoor temperature and improve the comfort of the living and working environment. At the same time, since the heat-reflecting coating has a variety of colors and textures, it can also be customized according to the architectural style and needs to enhance the overall aesthetics of the building. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0028] Figure 1 A schematic diagram of the cross-sectional structure of an embodiment when looking down after two glass panels are fixed by a single frame unit of the energy-saving glass curtain wall structure provided by the present invention;

[0029] Figure 2 for Figure 1 Schematic diagram of the structure in which heat-reflective coating, phase-change heat-storage coating and transparent waterproof coating are arranged on the middle protection section.

[0030] Description of Figure Numbers:

[0031] 100. Glass plate;

[0032] 200, frame unit;

[0033] 210, first frame; 211, first mounting end;

[0034] 220, second frame; 221, second mounting end; 222, outdoor end;

[0035] 230, connecting section;

[0036] 240, protection section;

[0037] 250, hollow cavity;

[0038] 300, heat reflective coating;

[0039] 400, phase change thermal storage coating;

[0040] 500, transparent waterproof coating;

[0041] 600. Solar refrigeration components.

[0042] The realization of the purpose, functional features and advantages of the present invention will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0043] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0044] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture. If the specific posture changes, the directional indication will also change accordingly.

[0045] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present invention, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features limited to "first" and "second" may explicitly or implicitly include at least one of the features. In addition, if "and / or" or "and / or" appears in the full text, its meaning includes three parallel solutions. Taking "A and / or B" as an example, it includes solution A, solution B, or solutions that satisfy both A and B. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0046] Curtain wall refers to the comprehensive functional system of the building's exterior wall, which has multiple functions such as windproof, waterproof, heat insulation and sound insulation. The curtain wall frame is a crucial supporting structure in this system. It mainly bears the weight of the curtain wall itself and mechanical requirements such as wind load. Since the curtain wall frame is placed outdoors for a long time, directly facing the harsh natural environment such as direct sunlight, wind and rain, its ability to block heat transfer plays an extremely critical role in the overall thermal insulation effect of the curtain wall. In the hot summer, good thermal insulation performance can significantly improve the indoor comfort, and also help energy saving and environmental protection.

[0047] Most of the current curtain walls have been improved in terms of glass structure and design. For example, the glass has adopted double-silver low-e technology for hollow glass, or even hollow laminated double-silver low-e glass, which has significantly improved the ability to block heat transfer. Based on these solutions, this solution can further block heat transfer, improve indoor comfort, and contribute to energy conservation and environmental protection.

[0048] See also Figure 1 In one embodiment of the present invention, the energy-saving glass curtain wall structure includes a plurality of glass panels 100 and a plurality of frame units 200; here, a plurality is a number greater than one, such as a piece of glass and a frame unit 200; or two pieces of glass and a frame unit 200; or two pieces of glass and three frame units 200, etc.

[0049] The shape and structure of the glass plate 100 are not limited, and it can be the hollow glass plate 100 described above; the curved glass plate 100, and so on.

[0050] The glass plate 100 is installed on the frame unit 200 to form a glass curtain wall. Specifically, the frame unit 200 includes a first frame 210, a second frame 220 and a heat reflective coating 300; the first frame 210 has a first mounting end 211; the second frame 220 has a second mounting end 221 and an outdoor end 222 opposite to the second mounting end 221; the first mounting end 211 and the second mounting end 221 are connected and fixed facing each other; on the opposite sides of the first mounting end 211 and the second mounting end 221 perpendicular to the connection direction, the first mounting end 211 and the second mounting end 221 can respectively clamp and fix a glass plate 100; the heat reflective coating 300 is coated on the surface of the outdoor end 222.

[0051] In one embodiment, the first frame 210 and the second frame 220 are arranged vertically on the ground, and two glass plates 100 are arranged at both ends of the first frame 210 and the second frame 220. The first frame 210 and the second frame 220 are equivalent to being clamped between the two glass plates 100; the first frame 210 has a first mounting end 211, and the second mounting end 221 is connected and fixed to the first mounting end 211 in a facing direction to form a structure for clamping the glass plates 100, and the glass plates 100 are clamped and fixed together. The first frame 210 and the second frame 220 are connected and fixed in a facing direction to form a stable clamping structure. This connection method can ensure that the glass plates 100 are firmly clamped between the frames and are not easy to fall off or shake; and a sealing strip is usually provided between the frame and the glass plate 100. This clamping method can ensure that the glass plate 100 is tightly fitted with the frame, thereby improving the sealing and stability of the curtain wall.

[0052] The surface of the outdoor end 222 faces the outdoor environment and is the main coating area of ​​the heat reflective coating 300. The heat reflective coating 300 is coated on the surface of the outdoor end 222 of the second frame 220 to reflect heat from sunlight, reduce the temperature of the curtain wall, and improve the thermal insulation effect, thereby reducing the burden on refrigeration equipment such as air conditioners and saving energy.

[0053] The technical solution of the present invention forms a stable clamping structure by adopting the first mounting end 211 and the second mounting end 221 to be connected and fixed in opposite directions, so as to ensure that the glass plate 100 is firmly clamped between the frames and is not easy to fall off or shake. Compared with the glass curtain wall of the same structure, the present solution reflects the heat in the sunlight through the heat reflective coating 300, further blocks the heat from being transferred from the frame unit 200 to the interior, improves the thermal insulation performance of the curtain wall, keeps the interior of the building at a comfortable ambient temperature, thereby reducing the burden of refrigeration equipment such as air conditioners, and saving energy. The energy-saving glass curtain wall structure is suitable for various high-rise buildings, commercial complexes, office buildings and other buildings that require efficient insulation and beautiful appearance. For example, in high-temperature areas in summer, the use of this energy-saving glass curtain wall structure with a heat reflective coating 300 can significantly reduce the indoor temperature and improve the comfort of the living and working environment. At the same time, since the heat reflective coating 300 has a variety of colors and textures, it can also be customized according to the architectural style and needs to improve the overall aesthetics of the building.

[0054] It should be noted that the heat reflective coating 300, also known as heat reflective coating or heat radiant coating, is a coating with high solar reflectivity and infrared emissivity. It is a new type of cooling and heat insulating coating that integrates reflection, radiation and hollow microsphere heat insulation. The heat reflective coating 300 can highly reflect the heat radiation of the sun, thereby reducing the temperature of the coated object. This coating usually uses metal compounds as cold pigments and can reflect more than 85% of solar energy. At the same time, the heat reflective coating 300 can also automatically perform heat radiation cooling, radiating the heat on the surface of the object into the air, thereby reducing the temperature of the object.

[0055] In one embodiment, the heat reflective coating 300 is configured as a ceramic coating. The ceramic material itself has excellent optical properties and can efficiently reflect the heat in sunlight, especially the infrared and ultraviolet parts. In addition, the ceramic coating has a rich selection of colors and textures, which can meet different architectural styles and aesthetic requirements.

[0056] In one embodiment, the ceramic coating can also be combined with other functional coatings (such as waterproof coatings, anti-corrosion coatings, etc.) to form a multi-layer composite coating system to meet more complex and diverse construction needs.

[0057] In order to further block the heat transfer of the energy-saving glass curtain wall structure, the first frame 210 and the second frame 220 are made of stainless steel, such as ferrite stainless steel, austenitic stainless steel and martensitic stainless steel; specifically, the thickness of the first frame 210 and the second frame 220 is 0.3mm to 5mm. At present, the glass curtain wall usually adopts a frame of aluminum profile, and the aluminum profile is mainly aluminum alloy, which is a good thermal conductor with a thermal conductivity of up to 160W / m·K, while the thermal conductivity of steel is about 45 to 100W / m·K, and the thermal conductivity of stainless steel is about 10 to 30W / m·K, which is less than 1 / 5 of that of aluminum alloy.

[0058] In other embodiments, in order to reduce the weight of the frame, the connecting section of the first frame and the second frame is made of aluminum alloy, while the protective section of the second frame is made of unmodified material.

[0059] In addition, a hollow cavity 250 is formed between the protection section and the connection section. The hollow cavity 250 formed between the protection section and the connection section can effectively block heat, and the air flow in the hollow cavity 250 is restricted, thereby reducing the heat transfer caused by convection. The hollow cavity 250 can also provide a certain support for the energy-saving glass curtain wall structure and enhance its stability.

[0060] In order to improve the reflectivity of the ceramic coating, the ceramic coating is configured to be mixed and sintered by 96 parts of α-alumina powder and 4 parts of sintering aids. 52% of solar radiation is concentrated in the near-infrared region (700-2500nm). Heat-reflective ceramic coating is one of the most effective methods to improve the thermal insulation performance of glass curtain wall profiles. The higher the reflectivity of the coating to sunlight, the better the thermal insulation effect. At the same time, due to the harsh outdoor climate and severe solar radiation, stainless steel has poor wear resistance and unsatisfactory corrosion resistance. Ceramic materials have high hardness, wear resistance, corrosion resistance and high-temperature oxidation resistance, so they can be used as coating materials for stainless steel surfaces. In one embodiment, the stainless steel plate is thermally sprayed with enamel powder to form an enameled stainless steel plate, and the thermal conductivity is significantly lower than that of the aluminum alloy profile frame.

[0061] Specifically, the ceramic coating is mixed with 96 parts of α-alumina powder and 4 parts of sintering aids, with a thickness of 0.8 to 1.2 mm, and is formed by flame spraying, arc spraying, plasma spraying or laser spraying. Since the refractive index of the α-alumina crystal phase is n1=1.76 and the refractive index of the pore phase is n2=1, a very high relative refractive index can be obtained. Therefore, by adjusting different sintering temperatures and controlling the porosity of the ceramic coating to be no more than 5%, a ceramic coating with a reflectivity of more than 99.5% can be obtained. α-alumina is a thermodynamically stable phase of aluminum oxide, which has the characteristics of high hardness, high wear resistance, high chemical stability and high thermal stability. Sintering aids play a vital role in the preparation process of ceramic coatings. They can reduce the sintering temperature, promote the bonding between aluminum oxide particles, and improve the density and strength of the coating. Sintering aids include oxides such as TiO2, MnO2, MgO, CaO, SiO2, etc. These additives can form a solid solution or generate a liquid phase with aluminum oxide, thereby accelerating the sintering process.

[0062] It is worth mentioning that 96 parts of α-alumina powder as the main component ensures the high purity of the coating. By adding an appropriate amount of sintering aid, the bonding between alumina particles can be promoted, and the density and mechanical properties of the coating can be improved. Thereby, the porosity of the ceramic coating is controlled to be no more than 5%, and a ceramic coating with a reflectivity of more than 99.5% can be obtained. In summary, the ceramic coating is composed of 96 parts of α-alumina powder and 4 parts of sintering aids mixed and sintered. Compared with other formulas, this ratio has significant advantages in purity, sintering performance, comprehensive performance, application fields, environmental protection and sustainability.

[0063] In a more recent solution, the heat insulation effect is further improved by setting a heat insulation layer. Specifically, the inner surface of the protection section away from the heat reflective coating is coated with a phase change heat storage coating 400. The phase change heat storage coating 400 utilizes the property of a substance to absorb or release a large amount of heat during a phase change (such as solid-liquid, liquid-gas, etc.). The phase change material can absorb heat when the ambient temperature is higher than the phase change temperature, and release heat when the ambient temperature is lower than the phase change temperature. During the day, when the solar radiation is strong, the heat reflective coating reflects most of the heat, while a small amount of penetrating heat is absorbed by the phase change heat storage coating 400 and stored as latent heat. At night or when the temperature drops, the phase change heat storage coating 400 releases the stored heat to maintain a stable indoor temperature and reduce energy consumption.

[0064] Neopentyl glycol (NPG) is a solid phase change material with a phase change temperature of 44.09°C and a latent heat of 116.54 J / g. No liquid phase is produced during the phase change. It has a wide phase change temperature range, small volume change, is non-toxic and non-corrosive, and has low requirements on container materials and technical conditions. Its latent heat of phase change is at the same order of magnitude as the solid-liquid phase change, with light supercooling, long service life and high thermal efficiency.

[0065] Specifically, the phase change thermal storage coating 400 is a mixture of NPG and white polyurea waterproof coating PAE (weight ratio), that is, 100 parts of NPG, 15 to 40 parts of PAE, and a thickness of 0.5 mm to 2 mm. The use of white polyurea can reduce the absorption of heat, and the range of the phase change thermal storage coating 400 is limited to 0.5 mm to 2 mm. This thickness range ensures that the coating can provide sufficient phase change thermal storage capacity while maintaining good physical properties and durability. The polyurea waterproof coating has the characteristics of rapid curing and is insensitive to temperature and humidity, making the construction of the mixed coating more convenient and quick.

[0066] It is worth mentioning that this solution adopts the above ratio to combine the unique properties of PAE and NPG to create a coating with excellent properties.

[0067] Neopentyl glycol can absorb or release a large amount of heat when the temperature changes, which helps to maintain the temperature of the environment around the coating. This property enables the coating to quickly provide or absorb heat energy when needed, thereby improving energy efficiency. Through the phase change process, the coating can adjust the temperature within a certain range, reduce temperature fluctuations, and improve comfort. White polyurea waterproof coating is known for its excellent waterproof performance. After mixing with NPG, the coating will inherit this property. This waterproof property helps protect the substrate under the coating from moisture erosion and prolongs the service life of the coating. Phase change thermal storage coating combines the advantages of NPG and PAE, has good weather resistance, and can resist erosion by natural factors such as ultraviolet rays, wind and rain. In addition, NPG and polyurea coatings are generally environmentally friendly and do not produce harmful substances, which is in line with the current green and low-carbon development concept.

[0068] In a more recent solution, the outer surface of the heat reflective coating is also covered with a transparent waterproof coating 500. The transparent waterproof coating 500 can form a dense waterproof layer, effectively preventing moisture from penetrating into the heat reflective coating and the substrate, thereby protecting the energy-saving glass curtain wall structure from moisture erosion. The transparent waterproof coating 500 itself has a certain light transmittance, allowing visible light and part of near-infrared light to pass through. At the same time, some components in the coating may have the function of reflecting or scattering light, thereby further enhancing the heat reflective coating's ability to reflect sunlight. It helps to reduce the impact of solar radiation on indoor temperature and improve the thermal insulation performance of the curtain wall.

[0069] Specifically, the transparent waterproof coating 500 is configured by mixing 100 parts of polyaspartic acid ester polyurea coating and 0.2 to 1 parts of polyvinylidene chloride (PVDC) coating.

[0070] Furthermore, the thickness of the transparent waterproof coating 500 is in the range of 10 μm to 1000 μm. The thickness of the transparent waterproof coating 500 is in the range of 10 μm to 1000 μm. This thickness range ensures that the coating can provide sufficient waterproof performance while maintaining good transparency and physical properties. In practical applications, the appropriate coating thickness can be selected according to specific needs and construction conditions.

[0071] It is worth mentioning that the asparagus polyurea coating itself has good waterproof properties and can form a dense waterproof film. The polyvinylidene chloride coating is known for its excellent barrier properties, which further enhances the waterproof effect of the coating. Such a transparent waterproof coating can still maintain good waterproof properties under long-term water immersion without leakage or shedding. In addition, the asparagus polyurea coating has self-leveling properties, high transparency after film formation, and little effect on the aesthetics of the underlying material. The coating can maintain the original color and texture of the underlying material, making the surface after coating more beautiful. Both the asparagus polyurea coating and the polyvinylidene chloride coating have excellent weather resistance and can resist erosion by natural factors such as ultraviolet rays, wind and rain. In this way, the transparent waterproof coating of this scheme can maintain its stable performance for a long time, is not easy to age or damage, thereby extending the service life of the coating. Moreover, the asparagus polyurea coating dries quickly, is easy to apply, and does not produce harmful gases, which meets environmental protection requirements; polyvinylidene chloride coating is also an environmentally friendly coating that is harmless to the human body and the environment. The addition of polyvinylidene chloride coating also helps to improve the tensile strength and tear strength of the coating, making the coating tougher and more durable; it can make the coating have a certain toughness while maintaining high transparency, and can better adapt to the deformation of the base layer.

[0072] In summary, the transparent waterproof coating is a mixture of 100 parts of asparagine polyurea coating and 0.2 to 1 part of PVDC coating. This ratio shows significant advantages in waterproof performance, transparency and aesthetics, weather resistance and durability, chemical stability, convenient construction and environmental protection, and physical properties.

[0073] In a further solution, on the basis of coating a transparent waterproof coating 500 on the surface of the outdoor end 222, the energy-saving glass curtain wall structure also includes a solar refrigeration component 600, and the solar refrigeration component 600 includes a semiconductor refrigeration module and a solar photovoltaic panel, the solar photovoltaic panel is electrically connected to the semiconductor refrigeration module, and the solar photovoltaic panel and the semiconductor refrigeration module are both arranged on the outer surface of the transparent waterproof layer.

[0074] One or more semiconductor refrigeration modules may be arranged on the second frame 220 along the butt joint surface between the first mounting end 211 and the second mounting end 221 .

[0075] Although the thermal conductivity of the stainless steel curtain wall frame coated with α-alumina ceramic coating has been greatly reduced compared with the traditional aluminum alloy profile, the thermal conductivity of stainless steel is still much higher than that of glass (about 1.03W / m·K), so the stainless steel curtain wall frame still shares a considerable part of the solar heat. At the same time, due to the high thermal conductivity of stainless steel, its surface temperature is significantly higher than that of the glass plate by 100°, so the stainless steel curtain wall frame needs to be cooled. The semiconductor refrigeration module is placed on the surface of the protection section for cooling. The length and width of the semiconductor refrigeration module are 40mm to 100mm. The semiconductor refrigeration module is also called a hot spot refrigeration sheet or a semiconductor refrigeration sheet. It is composed of an N-type semiconductor and a P-type semiconductor sheet. These two semiconductor elements form a thermocouple pair, namely a PN junction. When direct current passes through the thermocouple, it is accompanied by energy transfer, and energy exchange occurs at the junction. When direct current is added to the semiconductor refrigeration sheet, electrons pass through the P-type semiconductor and absorb heat. Due to the absorption of heat, the temperature at the cold end drops sharply, and the electrons then pass through the N-type semiconductor to release heat.

[0076] On the basis of the above scheme, in order to save energy, a solar photovoltaic panel (not shown in the figure) is also provided on the second frame 220, and the solar photovoltaic panel is electrically connected to the semiconductor refrigeration module. As the world's energy situation becomes increasingly severe, the development and utilization of solar energy and the improvement of conversion efficiency have gradually become the focus of experts and scholars. The solar photovoltaic panel consists of a front plate glass, a hot melt adhesive film, a silicon cell, and a back plate. With the continuous development of photovoltaic power generation technology, the photoelectric conversion efficiency of photovoltaic panels has been greatly improved. The semiconductor refrigeration module is charged by a solar photovoltaic panel, and the width of the solar photovoltaic panel is 50mm to 200mm and the length is 100mm to 400mm. The solar photovoltaic panel converts the solar energy irradiated on the stainless steel curtain wall frame into electrical energy and supplies power to the semiconductor module. The two form a virtuous cycle. In addition to cooling the frame unit 200, it also has great environmental significance.

[0077] In Example 1, the semiconductor cooling sheet TEC1-7103 (with radiator, length×width×thickness=50mm×50mm×34mm) has a rated voltage of 5V; the solar photovoltaic panel (length×width=110mm×69mm) has a rated voltage of 5V and a peak power of 1.25W. The solar photovoltaic panel is connected to the semiconductor cooling module through a USB connector, and the semiconductor cooling module and the solar photovoltaic panel are glued to the frame unit 200, with an arrangement spacing of 1 group per 1m, and the position is the outdoor end 222 of the second frame 220.

[0078] In Example 2, the semiconductor cooling sheet TEC1-7103 (with radiator, length×width×thickness=50mm×50mm×34mm) has a rated voltage of 5V; the solar photovoltaic panel (length×width=230mm×86mm) has a rated voltage of 5V and a peak power of 3.0W. The solar photovoltaic panel is connected to the cooling sheet through a USB connector, and the semiconductor cooling sheet and the solar photovoltaic panel are glued to the stainless steel glass curtain wall frame. The arrangement spacing is: 1 group is arranged every 1m, and the position is the outdoor end 222 of the second frame 220.

[0079] In Example 3, the semiconductor cooling sheet TEC1-7103 (with radiator, length×width×thickness=50mm×50mm×34mm) has a rated voltage of 5V; the solar photovoltaic panel (length×width=250mm×150mm) has a rated voltage of 5V and a peak power of 7.0W. The solar photovoltaic panel is connected to the cooling sheet through a USB connector, and the semiconductor cooling sheet and the solar photovoltaic panel are glued to the stainless steel glass curtain wall frame. The arrangement spacing is: 1 group is arranged every 1m, and the position is the outdoor end 222 of the second frame 220.

[0080] In the above three embodiments, the frame unit is made of stainless steel, and the outdoor end of the second frame is provided with a ceramic coating; the temperature values ​​of the second frame at different time points of the three embodiments are measured as follows:

[0081] Curtain wall frame temperature (temperature measurement point: near the semiconductor cooling chip)

[0082]

[0083] Specifically, in order to facilitate the assembly of the frame unit 200 and the spraying of the ceramic coating, the second frame 220 includes a connecting section 230 and a protective section 240, the second mounting end 221 is provided at the connecting section 230, the connecting section 230 is clamped and fixed with the protective section 240 on the side away from the second mounting end 221, the heat reflective coating 300 and the transparent waterproof coating 500 are provided on the outer surface of the protective section 240, and the phase change heat storage coating 400 is coated on the inner surface of the protective section 240; in different schemes, the temperature of the surface of the protective section 240 is as follows:

[0084] In contrast scheme 1, when the first frame and the second frame in the curtain wall structure are both made of aluminum alloy and no heat-reflective coating is provided on the surface, the test temperature on the outer surface of the protection section at noon is 52.1°C.

[0085] Solution 2: When only the material of the protective section in the curtain wall structure is changed to stainless steel and no heat-reflective coating is provided, the test temperature on the outer surface of the protective section at noon is 46.5°C.

[0086] Solution 3: Based on solution 2, after a heat-reflective coating is provided on the outer surface of the protection section, the test temperature on the outer surface of the protection section at noon is 40.3°C.

[0087] Solution 4: Based on solution 3, after a phase change thermal storage coating 400 is provided on the inner surface of the protection section, the test temperature on the outer surface of the protection section at noon is 37.4°C.

[0088] Solution 5: Based on solution 4, a transparent waterproof coating 500 is added to the surface of the heat reflective coating. The test temperature on the outer surface of the protection section at noon is 36.9°C.

[0089] Solution 6: Based on solution 5, after a solar cooling assembly 600 is added to the surface of the transparent waterproof coating 500, the test temperature on the outer surface of the protection section at noon is 31.7°C.

[0090] The above description is only an exemplary embodiment of the present invention, and does not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the technical concept of the present invention, or directly / indirectly applied in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. An energy-saving glass curtain wall structure, characterized in that: include: Several glass panels; and A plurality of framework units, wherein the framework units include: A first frame having a first mounting end; The second frame has a second mounting end and an outdoor end opposite to the second mounting end; the first mounting end and the second mounting end are connected and fixed facing each other; on the opposite sides of the first mounting end and the second mounting end which are perpendicular to the connection direction, the first mounting end and the second mounting end can respectively clamp and fix one of the glass plates; wherein the second frame also includes a connecting section and a protective section, the second mounting end is arranged on the connecting section, and the connecting section is clamped and fixed to the protective section on a side away from the second mounting end; the outer surface of the protective section is also provided with a heat reflective coating.

2. The energy-saving glass curtain wall structure according to claim 1, characterized in that: The heat reflective coating is configured as a ceramic coating.

3. The energy-saving glass curtain wall structure according to claim 2, characterized in that: The ceramic coating is prepared by mixing and sintering 96 parts of α-alumina powder and 4 parts of sintering aid; and / or The thickness of the ceramic coating ranges from 0.8 mm to 1.2 mm; and / or The porosity of the ceramic coating is no more than 5%.

4. The energy-saving glass curtain wall structure according to claim 1, characterized in that: The inner surface of the protection segment facing away from the heat reflective coating is coated with a phase change heat storage coating.

5. The energy-saving glass curtain wall structure according to claim 4, characterized in that: The phase-change thermal storage coating is configured by mixing 100 parts of neopentyl glycol coating and 15 to 40 parts of white polyurea waterproof coating; and / or the thickness of the phase-change thermal storage coating ranges from 0.5 mm to 2 mm.

6. The energy-saving glass curtain wall structure according to claim 1, characterized in that: The outer surface of the heat reflective coating is also covered with a transparent waterproof coating.

7. The energy-saving glass curtain wall structure according to claim 6, characterized in that: The transparent waterproof coating is configured by mixing 100 parts of polyaspartic acid ester polyurea coating and 0.2 to 1 parts of polyvinylidene chloride coating; and / or the thickness of the transparent waterproof coating ranges from 10 μm to 1000 μm.

8. The energy-saving glass curtain wall structure according to claim 6, characterized in that: The energy-saving glass curtain wall structure also includes a solar refrigeration component, which includes a semiconductor refrigeration module and a solar photovoltaic panel. The solar photovoltaic panel is electrically connected to the semiconductor refrigeration module. The solar photovoltaic panel and the semiconductor refrigeration module are both arranged on the outer surface of the transparent waterproof layer.

9. The energy-saving glass curtain wall structure according to claim 8, characterized in that: The length and width of the semiconductor refrigeration module are both in the range of 40 mm to 100 mm; and / or The solar photovoltaic panel has a width ranging from 50 mm to 200 mm and a length ranging from 100 mm to 400 mm.

10. The energy-saving glass curtain wall structure according to claim 1, characterized in that: A hollow cavity is formed between the protection segment and the connecting segment; and / or, the first frame is configured to be made of stainless steel; and / or, the second frame is configured to be made of stainless steel or the protection segment is configured to be made of stainless steel.

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