Composite curtain wall structure suitable for zero-carbon building

Abstract

The invention belongs to the technical field of curtain wall structures, and discloses a composite curtain wall structure suitable for a zero-carbon building, which comprises an inner side curtain wall and an outer side curtain wall. The inner side curtain wall is arranged on the building body and provided with a ventilation opening, an opening fan is arranged at the ventilation opening and can open or close the ventilation opening, the outer side curtain wall is connected to the inner side curtain wall, a ventilation cavity is formed between the outer side curtain wall and the inner side curtain wall, when the opening fan is opened, the ventilation cavity is communicated with the indoor space through the ventilation opening, and the outer side curtain wall is provided with an air inlet and an air outlet. The air inlet and the air outlet are both configured to be selectively opened or closed, and the ventilation cavity can communicate with the outside through the air inlet and the air outlet. By means of the arrangement, the composite curtain wall structure suitable for the zero-carbon building can flexibly adjust the ventilation mode, and energy consumption and carbon emission of the building can be reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of curtain wall structures, and in particular to a composite curtain wall structure suitable for zero-carbon buildings. Background Art

[0002] A zero-carbon building refers to a building that achieves near-zero net carbon emissions through the synergy of carbon reduction design of the building itself, the effective use of renewable energy, and the carbon trading mechanism.

[0003] However, in actual engineering applications, zero-carbon buildings still face some key structural bottlenecks. For one thing, existing curtain wall systems struggle to simultaneously meet the dual technical requirements of low heat transfer coefficient and high airtightness, limiting the optimization and improvement of the envelope performance of zero-carbon buildings. Furthermore, in building photovoltaic integration, traditional thin-film photovoltaic modules suffer from power generation efficiency degradation caused by solar radiation heat accumulation, which affects the utilization efficiency of renewable energy, thereby reducing the building's renewable energy supply capacity and hindering the achievement of zero-carbon building goals.

[0004] Furthermore, existing curtain wall systems also have shortcomings in ventilation control. Traditional curtain wall designs often fail to flexibly adjust ventilation patterns to suit different seasons and climate conditions, leading to indoor heat accumulation in the summer and heat loss in the winter, further increasing the building's energy consumption. Furthermore, existing curtain wall systems also have limitations in their use of renewable energy, failing to effectively convert solar energy from the building's surface into usable energy, limiting the building's energy self-sufficiency.

[0005] Therefore, there is an urgent need for a composite curtain wall structure suitable for zero-carbon buildings to solve the above technical problems. Summary of the Invention

[0006] The purpose of the present invention is to provide a composite curtain wall structure suitable for zero-carbon buildings, which can flexibly adjust the ventilation mode and help reduce building energy consumption and carbon emissions.

[0007] To achieve this object, the present invention adopts the following technical solutions:

[0008] A composite curtain wall structure suitable for zero-carbon buildings, comprising:

[0009] The inner curtain wall is provided on the main body of the building and is provided with a ventilation opening, wherein an opening fan is provided at the ventilation opening, and the opening fan can open or close the ventilation opening;

[0010] The outer curtain wall is connected to the inner curtain wall and forms a ventilation cavity with the inner curtain wall. When the opening fan is opened, the ventilation cavity is connected to the room through the air exchange port. The outer curtain wall is provided with an air inlet and an air outlet. The air inlet and the air outlet are configured to be selectively opened or closed. The ventilation cavity can be connected to the outside through the air inlet and the air outlet.

[0011] Optionally, the outer curtain wall is provided with photovoltaic glass.

[0012] Optionally, the photovoltaic glass is cadmium telluride thin-film photovoltaic glass.

[0013] Optionally, the outer curtain wall further includes two first glasses, and the photovoltaic glass is arranged between the two first glasses.

[0014] Optionally, a waterproof member is provided between the inner curtain wall and the building body.

[0015] Optionally, the opening fan is rotatably connected to the inner curtain wall.

[0016] Optionally, the air inlet and the air outlet are spaced apart in the vertical direction.

[0017] Optionally, an air inlet device is provided at the air inlet, and the air inlet end of the air inlet device is connected to the air inlet; an air outlet device is provided at the air outlet, and the air outlet end of the air outlet device is connected to the air outlet.

[0018] Optionally, the inner curtain wall includes a plurality of second glasses that are parallel to each other and spaced apart, a coating is provided on the second glasses, and an argon cavity is formed between the second glasses.

[0019] Optionally, a seal is provided between the opening fan and the ventilation port.

[0020] Beneficial effects of the present invention:

[0021] The present invention provides a composite curtain wall structure suitable for zero-carbon buildings, which includes an inner curtain wall and an outer curtain wall. The inner curtain wall is arranged on the main body of the building and is provided with a ventilation port. The ventilation port is provided with an opening fan. By setting the opening fan, the ventilation port can be opened or closed to facilitate gas exchange between the indoor and the outside. The user can open or close the opening fan according to his or her own needs, thereby improving the controllability and comfort of the indoor environment. The outer curtain wall is connected to the inner curtain wall and forms a ventilation cavity with the inner curtain wall. The ventilation cavity realizes the operation of "daytime heat pressure self-circulation in summer, dual-mode of cold storage and ventilation in transition season, and radiation heat storage and insulation in winter" through multi-modal ventilation control. The outer curtain wall is provided with an air inlet and an air outlet, and the air inlet and the air outlet are configured to be selectively opened or closed. The ventilation cavity can be connected to the outside through the air inlet and the air outlet, so that the composite curtain wall structure suitable for zero-carbon buildings can automatically adjust the indoor environment according to changes in outdoor environmental conditions. For example, under summer daytime working conditions, by opening the air inlet and the air outlet and closing the opening fan, a thermal pressure ventilation effect is formed, so that the hot air in the ventilation cavity continuously convects from bottom to top, which can effectively block solar radiation from entering the room and reduce the building's air conditioning energy consumption; under summer night and transition season working conditions, the air outlet is closed, and the air inlet and the opening fan are opened to form a ventilation cold storage channel based on the cold radiation of outdoor air; in winter working mode, the air inlet, the air outlet and the opening fan are closed, so that the ventilation cavity is closed to form a radiation heat storage cavity, thereby achieving a heat preservation effect and improving the thermal performance of heating working conditions. Through the above settings, the composite curtain wall structure suitable for zero-carbon buildings of this application can flexibly adjust the ventilation mode, which is conducive to reducing building energy consumption and carbon emissions. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 is a schematic diagram of a composite curtain wall structure suitable for zero-carbon buildings provided by an embodiment of the present invention in summer working conditions;

[0023] Figure 2 is a schematic diagram of an opening fan provided by an embodiment of the present invention in an open state;

[0024] Figure 3 This is a schematic diagram of a composite curtain wall structure suitable for zero-carbon buildings provided by an embodiment of the present invention in winter working conditions.

[0025] In the picture:

[0026] 10. Building structure; 100. Air inlet; 200. Air outlet; 1. Inner curtain wall; 11. Ventilation outlet; 12. Opening fan; 2. Outer curtain wall; 21. Ventilation cavity; 22. Air inlet; 23. Air outlet. DETAILED DESCRIPTION

[0027] The present invention will be further described in detail below with reference to the accompanying drawings and examples. It will be understood that the specific embodiments described herein are intended only to illustrate the present invention and are not intended to limit the present invention. It should also be noted that, for ease of description, the accompanying drawings only illustrate portions relevant to the present invention, not all structures.

[0028] In the description of the present invention, unless otherwise expressly specified or limited, the terms "connected," "connected," and "fixed" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integration; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention in specific circumstances.

[0029] In the present invention, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features being in contact not directly but through another feature between them. Furthermore, a first feature being "above," "above," and "above" a second feature may include the first feature being directly above or obliquely above the second feature, or may simply mean that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature may include the first feature being directly below or obliquely below the second feature, or may simply mean that the first feature is lower in level than the second feature.

[0030] In the description of this embodiment, terms such as "upper," "lower," and "right" are used to refer to positions or locations based on the positions or locations shown in the accompanying drawings. These terms are intended solely to facilitate description and simplify operation, and are not intended to indicate or imply that the devices or components referred to must have, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on the present invention. Furthermore, the terms "first" and "second" are used solely for descriptive purposes and have no special meaning.

[0031] A zero-carbon building refers to a building that achieves near-zero net carbon emissions through the synergy of carbon reduction design of the building itself, the effective use of renewable energy, and the carbon trading mechanism.

[0032] However, in actual engineering applications, zero-carbon buildings still face some key structural bottlenecks. For one thing, existing curtain wall systems struggle to simultaneously meet the dual technical requirements of low heat transfer coefficient and high airtightness, limiting the optimization and improvement of the envelope performance of zero-carbon buildings. Furthermore, in building photovoltaic integration, traditional thin-film photovoltaic modules suffer from power generation efficiency degradation caused by solar radiation heat accumulation, which affects the utilization efficiency of renewable energy, thereby reducing the building's renewable energy supply capacity and hindering the achievement of zero-carbon building goals.

[0033] Furthermore, existing curtain wall systems also have shortcomings in ventilation control. Traditional curtain wall designs often fail to flexibly adjust ventilation patterns to suit different seasons and climate conditions, leading to indoor heat accumulation in the summer and heat loss in the winter, further increasing the building's energy consumption. Furthermore, existing curtain wall systems also have limitations in their use of renewable energy, failing to effectively convert solar energy from the building's surface into usable energy, limiting the building's energy self-sufficiency.

[0034] Therefore, there is an urgent need for a composite curtain wall structure suitable for zero-carbon buildings to solve the above technical problems.

[0035] like Figure 1-Figure 3 As shown, this embodiment provides a composite curtain wall structure suitable for zero-carbon buildings, which includes an inner curtain wall 1 and an outer curtain wall 2. The inner curtain wall 1 is set on the building body 10 and is provided with a ventilation port 11. The ventilation port 11 is provided with an opening fan 12, which can open or close the ventilation port 11. The outer curtain wall 2 is connected to the inner curtain wall 1 and forms a ventilation cavity 21 between the inner curtain wall 1 and the inner curtain wall 1. When the opening fan 12 is opened, the ventilation cavity 21 is connected to the indoor room through the ventilation port 11. The outer curtain wall 2 is provided with an air inlet 22 and an air outlet 23. The air inlet 22 and the air outlet 23 are both configured to be selectively closed. The ventilation cavity 21 can be connected to the outdoors through the air inlet 22 and the air outlet 23.

[0036] In this embodiment, the inner curtain wall 1 is mounted on the main building structure 10 and is provided with a ventilation port 11. A fan 12 is provided at the ventilation port 11. By providing the fan 12, the ventilation port 11 can be opened or closed to facilitate air exchange between the interior and exterior. Users can open or close the fan 12 according to their needs, thereby improving the controllability and comfort of the indoor environment. The outer curtain wall 2 is connected to the inner curtain wall 1 and forms a ventilation cavity 21 therebetween. Through multi-modal ventilation control, the ventilation cavity 21 achieves "daytime heat pressure self-circulation in summer, dual-mode cooling and ventilation in the transitional season, and radiant heat storage and insulation in winter." The outer curtain wall 2 is provided with an air inlet 22 and an air outlet 23, both of which are configured to be selectively opened or closed. The ventilation cavity 21 can be connected to the outdoors through the air inlet 22 and the air outlet 23, so that the composite curtain wall structure suitable for zero-carbon buildings can automatically adjust the indoor environment according to changes in outdoor environmental conditions. For example, under summer daytime working conditions, by opening the air inlet 22 and the air outlet 23 and closing the opening fan 12, a thermal pressure ventilation effect is formed, so that the hot air in the ventilation cavity 21 continuously convects from bottom to top, which can effectively block solar radiation from entering the room and reduce the building's air-conditioning energy consumption; under summer night and transition season working conditions, the air outlet 23 is closed, and the air inlet 22 and the opening fan 12 are opened to form a ventilation and cold storage channel based on the cold radiation of outdoor air; under winter working mode, the air inlet 22, the air outlet 23 and the opening fan 12 are closed, so that the ventilation cavity 21 is closed to form a radiation heat storage cavity, thereby achieving a heat preservation effect and improving the thermal performance of the heating working conditions. Through the above-mentioned arrangement, the composite curtain wall structure suitable for zero-carbon buildings of this embodiment can flexibly adjust the ventilation mode, which is beneficial to reducing building energy consumption and carbon emissions.

[0037] The following is an explanation of the specific structure of the composite curtain wall structure suitable for zero-carbon buildings:

[0038] Specifically, a waterproof member is interposed between the inner curtain wall 1 and the building structure 10 to prevent moisture from penetrating the building structure 10, ensuring the airtightness and waterproof performance of the composite curtain wall structure suitable for zero-carbon buildings. Furthermore, by improving the waterproof performance of the composite curtain wall structure suitable for zero-carbon buildings, heat loss or heat gain due to moisture penetration is reduced, thereby improving the energy efficiency of the composite curtain wall structure suitable for zero-carbon buildings and reducing the overall energy consumption of the building.

[0039] More specifically, in this embodiment, the waterproof element is a waterproof vapor barrier membrane that effectively isolates moisture, preventing it from penetrating into the interior of building structure 10 and protecting the building structure from corrosion. In other embodiments, the waterproof element may be formed by laminating metal coatings, polyethylene films, warp and weft knitted fabrics, or plastic film with hot melt adhesive. The specific structure of the waterproof element is not particularly limited herein, as long as it can achieve the aforementioned functions.

[0040] Specifically, in this embodiment, the opening sash 12 is rotatably connected to the inner curtain wall 1. The user can adjust the opening angle of the opening sash 12 to control the ventilation volume and ventilation direction, thereby precisely controlling the air flow entering the room and improving ventilation efficiency. In other embodiments, the opening sash 12 is slidably connected to the inner curtain wall 1 to save opening space. The specific connection method between the opening sash 12 and the inner curtain wall 1 is not further limited herein.

[0041] The opening fan 12 is configured to be rotated toward the inside of the building body 10 for easy operation by the user.

[0042] Specifically, a seal is interposed between the sash 12 and the ventilation port 11 to ensure a tight connection between the sash 12 and the ventilation port 11, preventing impurities such as air, moisture, and dust from entering the room through the gap. This improves the sealing performance of the composite curtain wall structure suitable for zero-carbon buildings and helps maintain a clean and comfortable indoor environment. The seal can be a rubber ring or a silicone ring to improve the sealing between the sash 12 and the ventilation port 11. The specific material of the seal is not particularly limited, as long as it can achieve the aforementioned functions.

[0043] Specifically, the inner curtain wall 1 includes a plurality of second glasses that are parallel to each other and spaced apart. A coating is provided on the second glasses, and an argon cavity is formed between the second glasses.

[0044] It should be noted that in this embodiment, the glass structure of the inner curtain wall 1 is 6mm+18Ar+6mmLow-E+18Ar+6mmLow-E, comprising three layers of insulating glass (i.e., the second glass), each 6mm thick, and a double-argon-filled composite Low-E coating. The synergistic effect of multiple argon interlayers and double-silver Low-E coating achieves ultra-low heat transfer and low emissivity. The window frame utilizes a multi-cavity thermal insulation structure and a composite sealing system with internal insulation material to effectively reduce the window frame's heat transfer coefficient. Warm-edge spacers are used between the glass and the frame. It is understood that the inner curtain wall 1 utilizes a high-performance passive airtight curtain wall, configured according to the "three-pane, two-cavity, argon-filled, Low-E coated glass, with low-heat-transfer and energy-saving frame material" construction. Its airtightness is no less than Class 6, ensuring the airtightness and energy-saving performance of the inner curtain wall 1. It should be noted that those skilled in the art can adaptively adjust the specific structure of the inner curtain wall 1 based on the above parameters, and no further limitations are imposed here.

[0045] In this embodiment, three, four, or five second glass panes can be provided, and the specific number can be adjusted according to actual needs. Furthermore, the provision of a passive airtight curtain wall effectively blocks energy loss caused by heat conduction and air infiltration, maintains stable indoor environmental parameters, and reduces building air conditioning energy demand and carbon emissions. The specific structure of a passive airtight curtain wall is well understood by those skilled in the art and will not be elaborated upon here.

[0046] Specifically, the outer curtain wall 2 is provided with photovoltaic glass. By providing photovoltaic glass to generate electricity, the utilization rate of renewable energy and the carbon reduction rate of the building can be improved.

[0047] More specifically, in this embodiment, the photovoltaic glass is cadmium telluride thin-film photovoltaic glass. Since cadmium telluride thin-film photovoltaic glass has a high photoelectric conversion efficiency, especially maintaining a high power generation efficiency under low light conditions, it can provide a more stable energy supply for the building, thereby realizing the renewable energy conversion function of the building surface and ensuring the renewable energy utilization rate of the building. In addition, cadmium telluride thin-film photovoltaic glass has a long service life and good stability, which can improve the overall life of the composite curtain wall structure suitable for zero-carbon buildings. In other embodiments, the photovoltaic glass is zinc oxide coated glass or indium tin oxide (ITO) glass, etc. As long as the above-mentioned functions can be achieved, the specific material of the photovoltaic glass is not excessively limited.

[0048] More specifically, the outer curtain wall 2 also includes two first glass panels, with the photovoltaic glass panel positioned between them. It will be appreciated that in this embodiment, the outer curtain wall 2 comprises two 6mm thick insulating glass panels (i.e., first glass panels), with the cadmium telluride thin-film photovoltaic glass panel positioned between the two panels. This provides the outer curtain wall 2 with photovoltaic functionality, enabling it to generate electricity and provide renewable energy for the building. It should be noted that those skilled in the art can adapt the specific structure of the outer curtain wall 2 based on the aforementioned parameters, and this is not intended to be limiting here.

[0049] It should be noted that the composite curtain wall structure suitable for zero-carbon buildings in this embodiment innovatively integrates active photovoltaic glass power generation and passive natural ventilation double-layer curtain wall. Through the synergistic effect of photovoltaic module temperature control and building ventilation, it effectively solves the problem of power generation efficiency attenuation of thin-film photovoltaic modules due to high temperature of solar radiation, and simultaneously improves the renewable energy utilization rate of zero-carbon buildings, achieving dual optimization of power generation efficiency and building carbon reduction.

[0050] Specifically, the air inlet 22 and the air outlet 23 are arranged at intervals in the vertical direction, thereby forming natural convection, improving ventilation efficiency, and avoiding air flow short circuit, ensuring that air can fully flow through the ventilation cavity 21, taking away heat and moisture, and improving the comfort of the indoor environment.

[0051] Specifically, an air inlet 100 is provided at the air inlet 22, the air inlet end of the air inlet 100 being connected to the air inlet 22. An air outlet 200 is provided at the air outlet 23, the air outlet end of the air outlet 200 being connected to the air outlet 23. By providing the air inlet 100 and the air outlet 200, the ventilation volume of the air inlet 22 and the air outlet 23 can be precisely controlled, thereby meeting different indoor air circulation requirements. Furthermore, by opening or closing the air inlet 100 / the air outlet 200, the air inlet 22 and the air outlet 23 can be selectively closed. The air inlet 100 and the air outlet 200 can be equipped with electric ventilation shutters, manual shutters, rotary vents, or other devices, and the specific structures of the above devices are not limited herein.

[0052] It should be noted that the air inlet device 100 is in the open state in summer, in the closed state in winter, and in the open state in spring and autumn; the air outlet device 200 is in the open state in summer, in the closed state in winter, and in the closed state in spring and autumn, so as to meet the different usage needs of users.

[0053] More specifically, if Figure 1 As shown, during the summer daytime, the electric ventilation shutters can be opened to open the air inlet 22 and the air outlet 23, close the ventilation port 11, and the hot air in the ventilation cavity 21 is continuously convected from bottom to top to remove the indoor heat and reduce the indoor temperature. Figure 2 As shown, in summer nights or transitional seasons, the air inlet 22 and the fan 12 can be opened, and the air outlet 23 can be closed, so that outdoor air enters the room through the air inlet 22 and the ventilation port 11 to reduce the indoor temperature. Figure 3 As shown, in winter, the air inlet 22 and the air outlet 23 can be closed so that the ventilation cavity 21 forms a radiation heat storage cavity to reduce heat loss and maintain the indoor temperature.

[0054] It should be noted that the composite curtain wall structure suitable for zero-carbon buildings provided in this embodiment has the following advantages:

[0055] 1. During daytime operation in summer, by opening the electric ventilation shutters at the air inlet 22 and the air outlet 23, the ventilation cavity 21 forms a thermal pressure ventilation effect. When the temperature in the ventilation cavity 21 rises, the air in the ventilation cavity 21 flows from bottom to top and forms a circulating convection with the outdoor air under the action of continuous thermal pressure, thereby reducing the surface temperature of the inner curtain wall 1 and the outer curtain wall 2. This not only solves the problem of reduced working efficiency of thin-film photovoltaics and inverters due to high temperature environment during daytime use, but also reduces indoor heat radiation.

[0056] 2. During summer nights and transition seasons, the user closes the electric ventilation shutters at the air outlet 23 and opens the fan 12 and the ventilation shutters at the air inlet 22, thereby allowing the ventilation cavity 21 to ventilate and store cold air, and bringing the cold radiation of outdoor air into the room, thereby achieving the ventilation effect during summer nights and transition seasons.

[0057] 3. In winter, the electric ventilation shutters at the air inlet 22 and the air outlet 23 are closed, thereby forming a closed ventilation cavity 21, which stores heat from the solar radiation accumulated in the ventilation cavity 21, thereby playing a certain role in heat preservation.

[0058] 4. The outer curtain wall 2 uses cadmium telluride thin-film photovoltaic glass, which improves the utilization rate of renewable energy to meet the operational requirements of zero-carbon buildings.

[0059] Obviously, the above-described embodiments of the present invention are merely examples for the purpose of clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. A person skilled in the art would be able to make various obvious changes, readjustments, and substitutions without departing from the scope of protection of the present invention. It is not necessary and impossible to enumerate all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the claims of the present invention.

Claims

1. Composite curtain wall structure suitable for zero-carbon buildings, characterized by: include: An inner curtain wall (1) is arranged on a building main body (10) and is provided with a ventilation opening (11). An opening fan (12) is provided at the ventilation opening (11). The opening fan (12) can open or close the ventilation opening (11). The outer curtain wall (2) is connected to the inner curtain wall (1) and forms a ventilation cavity (21) with the inner curtain wall (1). When the opening fan (12) is opened, the ventilation cavity (21) is communicated with the room through the ventilation port (11). The outer curtain wall (2) is provided with an air inlet (22) and an air outlet (23). Both the air inlet (22) and the air outlet (23) are configured to be selectively opened or closed. The ventilation cavity (21) can be communicated with the outside through the air inlet (22) and the air outlet (23).

2. The composite curtain wall structure suitable for zero-carbon buildings according to claim 1, characterized in that: The outer curtain wall (2) is provided with photovoltaic glass.

3. The composite curtain wall structure suitable for zero-carbon buildings according to claim 2, characterized in that: The photovoltaic glass is cadmium telluride thin film photovoltaic glass.

4. The composite curtain wall structure suitable for zero-carbon buildings according to claim 2, characterized in that: The outer curtain wall (2) further comprises two first glasses, and the photovoltaic glass is arranged between the two first glasses.

5. The composite curtain wall structure suitable for zero-carbon buildings according to claim 1, characterized in that: A waterproof component is sandwiched between the inner curtain wall (1) and the building main body (10).

6. The composite curtain wall structure suitable for zero-carbon buildings according to claim 1, characterized in that: The opening fan (12) is rotatably connected to the inner curtain wall (1).

7. The composite curtain wall structure suitable for zero-carbon buildings according to claim 1, characterized in that: The air inlet (22) and the air outlet (23) are arranged at intervals along the vertical direction.

8. The composite curtain wall structure suitable for zero-carbon buildings according to claim 1, characterized in that: An air inlet device (100) is provided at the air inlet (22), and the air inlet end of the air inlet device (100) is connected to the air inlet (22); an air outlet device (200) is provided at the air outlet (23), and the air outlet end of the air outlet device (200) is connected to the air outlet (23).

9. The composite curtain wall structure suitable for zero-carbon buildings according to claim 1, characterized in that: The inner curtain wall (1) comprises a plurality of second glasses which are parallel to each other and spaced apart, a coating is provided on the second glasses, and an argon cavity is formed between the second glasses.

10. The composite curtain wall structure suitable for zero-carbon buildings according to any one of claims 1 to 9, characterized in that: A sealing member is sandwiched between the opening fan (12) and the ventilation port (11).

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