Ventilation glass curtain wall system with built-in power generation and phase change integrated sunshade shutter

Abstract

The utility model discloses a ventilating glass curtain wall system with a built-in power generation and phase change integrated sunshade shutter, which belongs to the technical field of building energy conservation and renewable energy utilization, and comprises a ventilating glass curtain wall component, a power generation and phase change integrated sunshade shutter, a power generation and phase change integrated sunshade shutter, a power generation and phase change integrated sunshade shutter and a power generation and phase change integrated sunshade shutter, the power generation and phase change integrated sunshade shutter assembly is arranged in the ventilation cavity and comprises a photovoltaic power generation layer, a shaping phase change material layer and a metal heat conduction layer arranged between the photovoltaic power generation layer and the shaping phase change material layer; the ventilation glass curtain wall assemblies are arranged at the top and the bottom of the inner-layer glass and the top and the bottom of the outer-layer glass respectively. The building glass curtain wall vertical face can be fully utilized to achieve building photovoltaic power generation, ventilation and heat insulation in summer, solar radiation heat collection and heating in winter and indoor natural ventilation in transition seasons, the building photovoltaic power generation efficiency and the renewable energy utilization rate are improved, the indoor thermal comfort is improved, and the building heating air conditioner energy consumption is reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of building energy conservation and renewable energy utilization, and specifically relates to a ventilation glass curtain wall system with built-in power generation phase change integrated sunshade louvers. Background Art

[0002] Building energy consumption accounts for nearly 30% of my country's total social energy consumption. The building operation stage is an important link in building energy consumption and carbon emissions. Improving the utilization rate of renewable energy in buildings is an important technical path to achieve building energy conservation and carbon reduction, which can effectively promote the realization of my country's carbon peak and carbon neutrality goals. For high-density cities, there is not enough ground space for photovoltaic installation. Combining the building facade with photovoltaic power generation to achieve building photovoltaic integration can effectively improve the utilization rate of renewable energy in high-density cities.

[0003] For example, the Chinese invention patent with application number 202310624033.2 discloses a "photovoltaic blinds control method, photovoltaic blinds control equipment and photovoltaic blinds system" for realizing automatic control of building photovoltaic blinds and improving the amount of solar radiation received by photovoltaic blinds.

[0004] In summer, the outdoor air temperature is high. Under the condition of solar radiation, the temperature of photovoltaic power generation components will rise sharply, up to 60 to 70℃. As the temperature rises, the power generation efficiency of photovoltaic power generation components will drop sharply, resulting in a decrease in the power generation of photovoltaic components. However, the existing technology mainly focuses on the implementation method of photovoltaic integration of building facades. How to combine building facades with photovoltaic power generation and avoid the decrease in power generation efficiency due to the temperature rise of photovoltaic components in summer has not been well solved. Utility Model Content

[0005] In response to one or more of the above defects or improvement needs of the prior art, the utility model provides a ventilated glass curtain wall system with built-in power generation phase change integrated sunshade louvers, which integrates sunshade and photovoltaic power generation in the building glass curtain wall, and uses shaped phase change materials to achieve passive cooling of the photovoltaic sunshade components to avoid power generation efficiency degradation caused by overheating. By opening and closing the ventilator, ventilation and heat insulation of the glass curtain wall can be achieved in summer under the action of thermal pressure, indoor solar thermal heating can be achieved in winter, and indoor natural ventilation can be enhanced in the transition season, thereby reducing the energy consumption of building air conditioning and heating and improving the utilization rate of renewable energy in the building.

[0006] In order to achieve the above-mentioned object, the utility model provides a ventilation glass curtain wall system with built-in power generation phase change integrated sunshade louvers, comprising:

[0007] A ventilated glass curtain wall assembly, which includes an inner layer of glass and an outer layer of glass, forming a ventilated cavity therebetween;

[0008] A power generation phase change integrated sunshade louver assembly, which is built into the ventilation cavity, comprises a photovoltaic power generation layer, a shaped phase change material layer and a metal heat conduction layer arranged therebetween;

[0009] The curtain wall ventilator components are respectively arranged on the top and bottom of the inner layer of glass and the top and bottom of the outer layer of glass.

[0010] Combined with the integrated power generation phase change sunshade louver assembly, ventilation glass curtain wall assembly and curtain wall ventilator assembly, glass curtain wall shading, photovoltaic power generation, passive cooling of shaped phase change materials and switching of different operating modes are realized.

[0011] As a further improvement of the utility model, the curtain wall ventilator assembly comprises a first top ventilator and a first bottom ventilator respectively arranged at the top and bottom of the inner layer of glass, and a second top ventilator and a second bottom ventilator respectively arranged at the top and bottom of the outer layer of glass;

[0012] The first top ventilator and the first bottom ventilator are used to control the air circulation between the ventilation cavity and the room; the second top ventilator and the second bottom ventilator are used to control the air circulation between the ventilation cavity and the outside.

[0013] As a further improvement of the present invention, the first top ventilator, the first bottom ventilator, the second top ventilator and the second bottom ventilator are all provided with filter screens.

[0014] As a further improvement of the utility model, it also includes an indoor openable exterior window arranged on the indoor wall.

[0015] As a further improvement of the utility model, the inclination angle of the power generation phase change integrated sunshade louver assembly is adjustable.

[0016] As a further improvement of the utility model, the photovoltaic power generation layer is arranged on the light-facing surface of the power generation phase change integrated sunshade louver assembly.

[0017] As a further improvement of the utility model, the photovoltaic power generation layer adopts photovoltaic power generation materials, including crystalline silicon, amorphous silicon photovoltaic power generation panels or cadmium telluride photovoltaic glass; and / or,

[0018] The metal heat-conducting layer is made of metal material with high thermal conductivity; and / or,

[0019] The phase change temperature of the fixed phase change material layer is 24°C to 26°C.

[0020] As a further improvement of the utility model,

[0021] The thickness of the metal heat-conducting layer is 0.5 mm to 2 mm; and / or,

[0022] The thickness of the fixed phase change material layer is 1 cm to 2 cm.

[0023] In general, the above technical solution conceived by the utility model has the following beneficial effects compared with the prior art:

[0024] (1) The utility model discloses a ventilated glass curtain wall system with built-in power generation phase change integrated sunshade louvers, which utilizes photovoltaic sunshade louvers to realize solar power generation on the building surface, and at the same time fully utilizes the latent heat of the fixed phase change material to realize passive cooling of the photovoltaic sunshade louvers, thereby improving the power generation efficiency of photovoltaic power generation materials under summer solar radiation. The thermal pressure generated by the solar radiation heat gain of the photovoltaic louvers is utilized to promote air flow in the ventilation cavity of the glass curtain wall, thereby reducing the heat gain of the glass curtain wall in summer and the heat loss in winter, reducing the air conditioning and heating energy consumption of the building, and promoting energy conservation and emission reduction of the building.

[0025] (2) The utility model's ventilation glass curtain wall system with built-in power generation phase change integrated sunshade louvers, combined with the design of power generation phase change integrated sunshade louver components, ventilation glass curtain wall components and curtain wall ventilator components, enables the system to switch operating modes in different seasons. In the summer ventilation and heat insulation mode, the system can use the chimney effect to achieve passive external circulation ventilation of the glass curtain wall, and discharge the heat absorbed by the photovoltaic sunshade louvers and the fixed phase change materials to the outside; in the winter solar thermal heating mode, the chimney effect in the glass curtain wall is used to achieve solar thermal heating, and the glass curtain wall can achieve comprehensive utilization of solar photovoltaic light and heat; in the transition season natural ventilation mode, the chimney effect in the glass curtain wall is used to strengthen indoor natural ventilation, and the ventilation air is used to cool the photovoltaic sunshade louvers, thereby improving the efficiency of photovoltaic power generation and the indoor thermal environment. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 A schematic diagram of a ventilation glass curtain wall system with built-in power generation phase change integrated sunshade louvers according to an embodiment of the utility model;

[0027] Figure 2 It is a schematic diagram of the structure of the power generation phase change integrated sunshade louver assembly involved in the ventilated glass curtain wall system of the embodiment of the utility model;

[0028] Figure 3 It is a schematic diagram of the summer operating condition involved in the embodiment of the utility model;

[0029] Figure 4 It is a schematic diagram of the winter operating condition involved in the embodiment of the utility model;

[0030] Figure 5 It is a schematic diagram of the operating condition in transition season involved in the embodiment of the present utility model.

[0031] In all the drawings, the same reference numerals represent the same technical features, specifically: 100, power generation phase change integrated sunshade louver assembly; 200, ventilation glass curtain wall assembly; 400, floor slab; 500, indoor openable exterior window;

[0032] 101. Photovoltaic power generation layer; 102. Metal heat-conducting layer; 103. Shaped phase change material layer; 201. Inner glass; 202. Ventilation cavity; 203. Outer glass; 204. Glass fixing member; 301. First top ventilator; 302. Second top ventilator; 303. Second bottom ventilator; 304. First bottom ventilator. DETAILED DESCRIPTION

[0033] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the utility model and are not used to limit the utility model. In addition, the technical features involved in each embodiment of the utility model described below can be combined with each other as long as they do not conflict with each other.

[0034] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0035] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present utility model, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0036] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0037] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0038] See also Figure 1 The embodiment of the utility model provides a ventilation glass curtain wall system with built-in power generation phase change integrated sunshade louver, including a power generation phase change integrated sunshade louver assembly 100, a ventilation glass curtain wall assembly 200, and a curtain wall ventilator assembly 300. The ventilation glass curtain wall assembly 200 includes an inner layer of glass 201 and an outer layer of glass 203, and the power generation phase change integrated sunshade louver assembly 100 is built in a ventilation cavity 202 formed between the two. The top and bottom of the inner layer of glass 201 and the outer layer of glass 203 are both provided with a curtain wall ventilator assembly 300; the curtain wall ventilator assembly 300 includes a first top ventilator 301 and a first bottom ventilator 304 respectively arranged at the top and bottom of the inner layer of glass 201, and a second top ventilator 302 and a second bottom ventilator 303 respectively arranged at the top and bottom of the outer layer of glass 203.

[0039] Among them, the first top ventilator 301 and the first bottom ventilator 304 are used to control the air circulation between the ventilation cavity 202 and the indoor air; the second top ventilator 302 and the second bottom ventilator 303 are used to control the air circulation between the ventilation cavity 202 and the outdoors; the opening and closing combination between different curtain wall ventilator assemblies 300 is used to realize the switching of different operating modes.

[0040] In a preferred embodiment, in order to prevent dust or impurities from entering the ventilation cavity of the glass curtain wall through the ventilator, the ventilator is provided with a filter.

[0041] In a preferred embodiment, glass fixing components 204 are provided at the top and bottom of the inner glass 201 and the outer glass 203 to achieve fixation.

[0042] It should be noted that each ventilator of the curtain wall ventilator assembly 300 can use a ventilation valve of the prior art. As long as it can connect the indoor and ventilation cavity 202, and the ventilation cavity 202 and the outdoors, and can be opened and closed, it is within the protection scope of the present utility model.

[0043] Further reading Figure 2 The integrated power generation phase change sunshade louver assembly 100 includes a photovoltaic power generation layer 101, a fixed phase change material layer 103, and a metal heat conductive layer 102 disposed therebetween. The photovoltaic power generation layer 101 is disposed on the light-facing side of the louver assembly to absorb solar radiation for power generation; the metal heat conductive layer 102 transfers the heat generated during the power generation process of the photovoltaic power generation layer 101 to the fixed phase change material layer 103, thereby achieving passive cooling of the photovoltaic power generation layer 101 and improving the photovoltaic power generation efficiency.

[0044] It should be noted that the inclination angle of the integrated power generation phase change sunshade louver assembly 100 can be manually adjusted during use according to the solar incident angle or usage requirements.

[0045] In a preferred embodiment, the photovoltaic power generation layer 101 uses photovoltaic power generation materials such as crystalline silicon, amorphous silicon photovoltaic power generation panels or cadmium telluride photovoltaic glass; the metal thermal conductive layer 102 uses metal materials with high thermal conductivity; the fixed phase change material layer 103 can use existing phase change materials, and the phase change temperature is 24°C to 26°C.

[0046] In a preferred embodiment, the thickness of the metal heat-conducting layer 102 is 0.5 mm to 2 mm; the thickness of the fixed phase change material layer 103 is 1 cm to 2 cm; and the thickness of the photovoltaic power generation layer 101 is related to the selected material.

[0047] In a preferred embodiment, the ventilation glass curtain wall assembly 200 is arranged between the upper and lower floors 400, and an indoor openable exterior window 500 is also arranged on the indoor wall away from the ventilation glass curtain wall, so as to realize the connection between the indoor and outdoor environments.

[0048] The ventilated glass curtain wall system with built-in power generation phase change integrated sunshade shutters of the utility model includes a ventilation and heat insulation mode in summer, a solar heat collection and heating mode in winter, and a natural ventilation mode in transitional seasons, which can adapt to the needs of different seasons. The switching between the three operating modes is achieved through different opening and closing combinations of the curtain wall ventilator assembly 300, and the process is as follows:

[0049] (1) Summer ventilation and insulation mode

[0050] See also Figure 3When switching this mode, the second top ventilator 302 and the second bottom ventilator 303 of the outer glass 203 are opened, and the first top ventilator 301 and the first bottom ventilator 304 of the inner glass 201 are closed, thereby forming a passage through which air can flow between the ventilation cavity 202 of the glass curtain wall and the outdoor environment.

[0051] In summer, the power generation phase change integrated sunshade louver assembly 100 can be used as a sunshade for the building facade to prevent solar radiation from entering the room, reduce the solar radiation heat gain in the room in summer, and convert solar energy into electrical energy. Due to the increase in the temperature of the photovoltaic power generation layer 101 caused by solar radiation, part of the heat is transferred to the fixed phase change material layer 103 through the metal heat conductive layer 102 in the form of heat conduction, and part of the heat is transferred to the air in the ventilation cavity 202 in the form of convection heat exchange. At this time, due to the temperature rise of the air between the inner and outer layers of glass, a natural flow of air from bottom to top is generated under the chimney effect. The outdoor air is sucked into the ventilation glass curtain wall through the second bottom ventilator 303, flows through the ventilation cavity 202 from bottom to top, and exchanges heat with the power generation phase change integrated sunshade louver assembly 100, taking away the heat accumulated at the sunshade louver, and finally discharged to the outdoors through the second top ventilator 302.

[0052] This mode can effectively prevent the problem of reduced photovoltaic power generation efficiency caused by the heating of photovoltaic components in summer. It utilizes the chimney effect formed in the glass curtain wall under the action of solar radiation to passively and spontaneously form an external circulation ventilation airflow in the glass curtain wall, effectively removing the solar radiation heat at the photovoltaic sunshade louvers, thereby increasing the photovoltaic power generation of the system and reducing the indoor air conditioning energy consumption in summer.

[0053] (2) Winter solar thermal heating mode

[0054] See also Figure 4 When switching this mode, the first top ventilator 301 and the first bottom ventilator 304 of the inner glass 201 are opened, and the second top ventilator 302 and the second bottom ventilator 303 of the outer glass 203 are closed, thereby forming a passage through which air can flow between the ventilation cavity 202 of the glass curtain wall and the indoor environment.

[0055] In winter, solar radiation causes the temperature of the air in the photovoltaic power generation layer 101 and the ventilation cavity 202 to rise. At this time, the chimney effect in the glass curtain wall is utilized, and the indoor air enters the ventilated glass curtain wall through the first bottom ventilator 304, flows through the ventilation cavity 202 from bottom to top, and absorbs the heat of the power generation phase change integrated sunshade louver assembly 100. Finally, the heated air enters the room through the first top ventilator 301.

[0056] This mode can form an internal circulation airflow in the ventilated glass curtain wall, effectively utilizing the solar radiation absorbed by the photovoltaic sunshade louvers to circulate and heat the indoor air, thereby increasing the photovoltaic power generation of the system and reducing indoor heating energy consumption in winter.

[0057] (3) Natural ventilation mode in transitional seasons

[0058] See also Figure 5 When switching to this mode, the first bottom ventilator 304 of the inner glass 201 and the second top ventilator 302 of the outer glass 203 are opened, the first top ventilator 301 of the inner glass 201 and the second top ventilator 303 of the outer glass are closed, and the indoor openable outer window 500 is opened at the same time. In the transition season, solar radiation increases the temperature of the photovoltaic power generation layer 101. Similarly, under the action of the chimney effect, the glass curtain wall allows outdoor air to be sucked into the room through the openable outer window 500 to achieve ventilation of the indoor environment, and finally enters the ventilation cavity 202 through the first bottom ventilator 304, while cooling the power generation phase change integrated sunshade louver assembly 100, and finally exhausts it to the outdoors through the top ventilator 302 of the outer glass.

[0059] In this mode, the photovoltaic sunshade louvers in the glass curtain wall absorb solar radiation, causing the air temperature in the glass curtain wall to rise, forming an upward airflow driven by the chimney effect, thereby enhancing natural ventilation in the building, improving the indoor air quality and thermal environment in the transition season, and passively cooling the photovoltaic power generation system to improve the photovoltaic power generation efficiency of the building facade.

[0060] It is easy for those skilled in the art to understand that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A ventilation glass curtain wall system with built-in power generation phase change integrated sunshade louvers, characterized in that: include: A ventilated glass curtain wall assembly, which includes an inner layer of glass and an outer layer of glass, forming a ventilated cavity therebetween; A power generation phase change integrated sunshade louver assembly, which is built into the ventilation cavity, comprises a photovoltaic power generation layer, a shaped phase change material layer and a metal heat conduction layer arranged therebetween; The curtain wall ventilator components are respectively arranged on the top and bottom of the inner layer of glass and the top and bottom of the outer layer of glass.

2. The ventilation glass curtain wall system with built-in power generation phase change integrated sunshade louvers according to claim 1 is characterized in that: The curtain wall ventilator assembly comprises a first top ventilator and a first bottom ventilator respectively arranged at the top and bottom of the inner layer of glass, and a second top ventilator and a second bottom ventilator respectively arranged at the top and bottom of the outer layer of glass; The first top ventilator and the first bottom ventilator are used to control the air circulation between the ventilation cavity and the room; the second top ventilator and the second bottom ventilator are used to control the air circulation between the ventilation cavity and the outside.

3. The ventilation glass curtain wall system with built-in power generation phase change integrated sunshade louvers according to claim 2 is characterized in that: The first top ventilator, the first bottom ventilator, the second top ventilator and the second bottom ventilator are all provided with filter screens.

4. The ventilation glass curtain wall system with built-in power generation phase change integrated sunshade louvers according to any one of claims 1 to 3, characterized in that: It also includes indoor openable exterior windows arranged on indoor walls.

5. The ventilation glass curtain wall system with built-in power generation phase change integrated sunshade louvers according to any one of claims 1 to 3, characterized in that: The inclination angle of the power generation phase change integrated sunshade louver assembly is adjustable.

6. The ventilation glass curtain wall system with built-in power generation phase change integrated sunshade blinds according to any one of claims 1 to 3, characterized in that: The photovoltaic power generation layer is arranged on the light-facing surface of the power generation phase change integrated sunshade louver assembly.

7. The ventilation glass curtain wall system with built-in power generation phase change integrated sunshade louvers according to any one of claims 1 to 3, characterized in that: The photovoltaic power generation layer uses photovoltaic power generation materials, including crystalline silicon, amorphous silicon photovoltaic panels or cadmium telluride photovoltaic glass; and / or, The metal heat-conducting layer is made of metal material with high thermal conductivity; and / or, The phase change temperature of the fixed phase change material layer is 24°C to 26°C.

8. The ventilation glass curtain wall system with built-in power generation phase change integrated sunshade louvers according to any one of claims 1 to 3, characterized in that: The thickness of the metal heat-conducting layer is 0.5 mm to 2 mm; and / or, The thickness of the fixed phase change material layer is 1 cm to 2 cm.

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