Ultralow-energy-consumption building external window airtight structure

Abstract

The utility model provides an ultralow-energy-consumption building external window airtight structure which comprises a structure base layer, an external window and an energy-saving auxiliary frame. The energy-saving auxiliary frame is pre-buried at the edge, connected with the outer window, of the structure base layer, and the energy-saving auxiliary frame transversely crosses the indoor side and the outdoor side of the outer window; the outer window is detachably connected to the energy-saving auxiliary frame; the waterproof vapor-proof film is laid on the joint face of the indoor side of the energy-saving auxiliary frame and the structural base layer. The waterproof vapor-permeable film is laid on the joint surface of the outdoor side of the energy-saving auxiliary frame and the structural base layer; the closing-up positions of the waterproof vapor-proof film and the waterproof vapor-permeable film are coated with silicone sealants. The air tightness of the outer window is guaranteed, indoor and outdoor cold and hot air exchange and cold and hot energy loss are reduced, and the energy-saving and emission-reducing effects of a building are achieved; the building sound insulation performance and the air quality are improved, the energy use efficiency is improved, meanwhile, water vapor is discharged outdoors in time, the energy-saving auxiliary frame of the outer window is protected against corrosion, the service life of the outer window and the building is prolonged, and an effective guarantee is provided for long-term use of the building.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of building structure engineering, and more particularly to an ultra-low energy consumption building outer window air tightness structure. BACKGROUND

[0002] The ultra-low energy consumption building refers to the building that can provide comfortable indoor environment with less energy consumption, and the indoor environment parameters and energy efficiency indexes of which meet the nearly zero energy consumption technical standard (GB / T51350-2019), by adapting to the climate characteristics and site conditions, reducing the heating, air conditioning and lighting demand of the building by passive building design to the maximum extent, improving the energy equipment and system efficiency by active technical measures to a large extent, and making full use of renewable energy. The ultra-low energy consumption building can maximize the comfort of building use while saving energy and reducing emissions, and is the trend of future building development.

[0003] According to relevant research, the energy consumption of the building itself will be affected by the air tightness of the building. The key to ensuring the high energy consumption of the ultra-low energy consumption building lies in the air tightness of the building structure. The air tightness refers to the fact that the building structure cannot leak air from the outside or the inside when in use. If the air tightness is poor, it is difficult to reduce the energy consumption of the building. The better the air tightness, the higher the energy consumption efficiency, and the smaller the building noise. Therefore, the ultra-low energy consumption building puts forward higher requirements for the air tightness of the building, and must meet certain standards to ensure high energy consumption. As an indispensable part of the building envelope system, the outer window with high air tightness plays a crucial role in the ultra-low energy consumption building, which not only affects the energy consumption efficiency of the building, but also directly relates to the comfort and quality of the indoor environment.

[0004] However, there is no perfect structure at present to protect the air tightness of the outer window structure from being damaged (such as gaps between the window frame and the wall, damage of the sealing strip, etc.). Poor air tightness of the outer window will increase the cost of heating and cooling, cause energy waste, reduce energy consumption efficiency, and affect indoor air quality and comfort. More seriously, when the air tightness of the outer window does not meet the relevant standards, there is a serious safety hazard in case of fire. UTILITY MODEL CONTENTS

[0005] Therefore, the purpose of the utility model is to design an ultra-low energy consumption building outer window air tightness structure, which effectively ensures the air tightness of the outer window when crossing the interface between the inside and outside of the building, and isolates the exchange of cold and hot air, thereby greatly saving energy consumption, improving energy consumption efficiency and energy use efficiency; and simplifying the process, reducing construction cost and improving the cost performance of the building.

[0006] The utility model provides an outer window air tightness structure of super low energy consumption building, include: structure base layer, outer window, energy -conserving attached frame, the energy -conserving attached frame is embedded in the edge where structure base layer connects outer window, the energy -conserving attached frame transversely across the indoor side and outdoor side of outer window, the outer window is detachably connected on the energy -conserving attached frame, the energy -conserving attached frame plays the effect of improving the heat preservation performance, heat insulation performance, sound insulation performance of outer window body, strengthens the installation firmness of window body, avoids the window body to shake after installation, the cleaning and maintenance effect of window body are convenient, and the energy -conserving attached frame plays an important role in improving the energy efficiency of building, reducing energy consumption, enhancing the living comfort degree etc.

[0007] The indoor side of the energy-conserving attached frame and the intersection surface of the structure base layer are provided with a waterproof vapor barrier film; the outdoor side of the energy-conserving attached frame and the intersection surface of the structure base layer are provided with a waterproof vapor-permeable film; the waterproof vapor barrier film and the waterproof vapor-permeable film are laid on the indoor side and the outdoor side of the outer window respectively, thereby ensuring the air tightness of the outer window when passing through the interface between the inside and outside of the building.

[0008] The closing portions of the waterproof vapor barrier film and the waterproof vapor-permeable film are coated with silicone sealant, which is used for sealing the closing portions of the waterproof vapor barrier film and the waterproof vapor-permeable film, preventing gaps from occurring at the closing portions and reducing air tightness. The silicone sealant is single-component and neutral curing, has no corrosiveness to metals and coated glass, has high adhesion, high strength, high elongation, high modulus, excellent weather resistance, and other characteristics, and has a service life of 50 years under normal weather conditions; has excellent high and low temperature resistance, and always maintains good strength and elasticity in the range of -40°C to 100°C after curing. Has excellent adhesion to most building materials.

[0009] Further, corner columns are arranged at the corners of the energy-conserving attached frame, the corner columns are in close connection with the energy-conserving attached frame, through holes and threaded holes are arranged on the corner columns, screws are arranged in the through holes, the external threads of the screws are matched with the internal threads of the threaded holes, the corners of the outer window are arranged between the through holes and the threaded holes of the corner columns, and the outer window and the corner columns are adjustably and tightly connected through the screws.

[0010] The close connection between the energy-conserving attached frame and the outer window significantly improves the performance of the outer window. The air tightness, water tightness and wind pressure resistance of the outer window are effectively improved. The outer window can better isolate external noise, dust and rain in the closed state, thereby improving the comfort and cleanliness of the indoor environment; and the structural stability of the outer window of the building is effectively improved, thereby enhancing the anti-seismic and anti-wind capabilities of the building as a whole. In extreme weather conditions, the energy-conserving attached frame can provide additional protection for the building, thereby reducing the risk of damage to the building.

[0011] The screw and threaded hole adjustable structure of the corner column facilitates adjustment of the connection between the corner column and the outer window to a suitable clamping force, and the structure of the corner column is easy to install and disassemble, and is easy to use and maintain.

[0012] Furthermore, the gap between the energy-saving auxiliary frame and the structural base layer is sealed with concrete sealant;

[0013] The gaps at the connection between the energy-saving auxiliary frame and the outer window and the gaps at the connection between the energy-saving auxiliary frame and the corner column are both sealed with silicone sealant.

[0014] By fully covering and sealing all the small gaps at the joints of each structure, strict airtightness between the external windows, energy-saving accessories and the structural base is effectively guaranteed.

[0015] Concrete joint sealant is primarily epoxy mortar, a high-viscosity mortar made from a mixture of epoxy resin and quartz sand. Its compressive strength, adhesion, and other physical and mechanical properties far surpass those of cement-based grouting materials. Epoxy mortar offers a mild curing reaction and low peak exotherm, allowing for a working time of up to 90 minutes (at 25°C), making it suitable for large-volume grouting. It exhibits no shrinkage after grouting, ensuring high-precision installation. It withstands long-term corrosion from chemicals such as acids, alkalis, salts, and oils. It withstands harsh conditions of freeze-thaw cycles, vibration, and pressure from temperatures ranging from -80°C to +80°C without plastic deformation, ensuring long-term precise positioning of installed objects. It can also absorb any dynamic loads transmitted by moving equipment that could potentially cause the cement-based grouting layer to burst.

[0016] Furthermore, the energy-saving auxiliary frame includes: a frame structure and a high-thermal insulation structure. The high-thermal insulation structure is closely attached to the surface of the outer window and is tightly laid on the inner side of the frame structure facing the outer window.

[0017] Furthermore, the high thermal insulation structure includes three layers arranged in sequence from near to far from the outer window surface: a thermal insulation layer, a protective layer, and a waterproof layer.

[0018] A high-insulation structure is a layered structure wrapped around the outer edge of an exterior window to provide insulation and heat protection. The insulation layer primarily reduces heat loss and is made of a material with low thermal conductivity. A protective layer, typically made of an asbestos-cement shell made of a mixture of asbestos fibers and cement, surrounds the insulation layer. A waterproof layer, typically made of oil felt, sheet metal, or oiled glass cloth, protects the insulation layer.

[0019] Further, the frame structure is an aluminum stretch profile structure, and a surface of the frame structure is coated with an anodic oxidation layer or an anti-corrosion spray coating.

[0020] Further, the thermal insulation layer is made of expanded perlite, expanded vermiculite, diatomite or asbestos, or a thermal insulation forming material: thermal insulation tile.

[0021] The energy-saving attached frame can effectively reduce heat transfer between the inside and outside of the building, maintain stable indoor temperature, and save energy.

[0022] Further, the waterproof and vapor-permeable membrane comprises a three-layer structure: PP spun-bonded non-woven fabric, PE high-molecular vapor-permeable membrane, and PP spun-bonded non-woven fabric.

[0023] The spacing between gas molecules is large, and the gas molecules can pass through the air holes of the waterproof and vapor-permeable membrane during diffusion movement.

[0024] Further, the waterproof and vapor barrier membrane comprises: a metal coating film, a polyethylene film, a warp and weft fabric, and a plastic film arranged from near to far from the structure base layer, and the metal coating film, the polyethylene film, the warp and weft fabric, and the plastic film are connected by a hot melt adhesive layer.

[0025] The waterproof and vapor barrier membrane prevents the penetration of indoor humid air into the thermal insulation layer.

[0026] Further, the outer surface of the structure base layer is covered with a waterproof thermal insulation layer.

[0027] The utility model discloses make corresponding air tightness processing to the indoor side of outer window and the outdoor side of outer window respectively, has guaranteed the air tightness continuity of outer window.

[0028] Compared with the prior art, the utility model has the beneficial effects that:

[0029] The super-low energy consumption building outer window air tightness structure is simple and reasonable, has high integrity, guarantees the air tightness of the outer window, reduces indoor and outdoor cold and hot air exchange and cold and heat energy consumption loss, realizes efficient use of energy, reduces energy consumption, achieves building energy saving and emission reduction effects, can effectively block noise and air pollution outside the building from entering the indoor, improves building sound insulation performance and air quality, improves building indoor comfort, provides a healthier and more comfortable living environment, and has simple and convenient construction process, simple and reliable structure, reduced cost, and improved building performance price ratio. BRIEF DESCRIPTION OF DRAWINGS

[0030] Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The accompanying drawings are included to provide a description of the preferred embodiments and are not intended to limit the scope of the present application. Furthermore, the drawings are not necessarily drawn to scale and the same reference numbers in different drawings represent the same components. In the drawings:

[0031] Figure 1 Figure 1 is a structural schematic view of a super-low energy consumption building outer window air tightness structure according to the present application.

[0032] The following signs are marked in the drawings:

[0033] 1, structure base layer, 2, energy saving frame, 3, waterproof vapor barrier film, 4, waterproof vapor permeable film, 5, silicone sealant. DETAILED DESCRIPTION

[0034] Exemplary embodiments of the present disclosure will be described in detail with reference to the drawings. Although exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure can be implemented in various forms and should not be limited by the embodiments described herein. On the contrary, these embodiments are provided so that the present disclosure can be more thoroughly understood and the scope of the present disclosure can be accurately conveyed to those skilled in the art. It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict. The present application will be described in detail below with reference to the drawings and in combination with the embodiments.

[0035] In the description of the present invention, it should be noted that the terms "inside" and "outside" etc. indicating orientations or positional relationships are 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 device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0036] In the description of this utility model, it should be noted that, unless otherwise specified or limited, the term "connection" should be understood in a broad sense. For example, it can mean a fixed connection, a detachable connection, or an integral connection; it can mean a mechanical connection or an electrical connection; it can mean a direct connection, an indirect connection through an intermediate medium, or a connection between two components. For those skilled in the art, the specific meanings of the above terms in this utility model can be understood according to the specific circumstances.

[0037] The following is a detailed description of the embodiments of the present invention with reference to the accompanying drawings:

[0038] The utility model embodiment provides an airtight structure for exterior windows of ultra-low energy consumption buildings, see Figure 1 As shown, it includes: a structural base 1, an exterior window, and an energy-saving auxiliary frame 2; the energy-saving auxiliary frame 2 is pre-buried at the edge of the structural base 1 where it connects to the exterior window, and the energy-saving auxiliary frame 2 horizontally spans the indoor and outdoor sides of the exterior window; the exterior window is detachably connected to the energy-saving auxiliary frame 2; the energy-saving auxiliary frame 2 serves to improve the thermal insulation performance, heat insulation performance, and sound insulation performance of the exterior window body, enhance the installation firmness of the window body, avoid the window body from shaking after installation, and facilitate the cleaning and maintenance of the window body. The energy-saving auxiliary frame 2 plays an important role in improving the energy efficiency of buildings, reducing energy consumption, and enhancing living comfort.

[0039] The energy-saving auxiliary frame 2 is provided with a corner column at the corner, and the corner column is closely connected to the energy-saving auxiliary frame 2. The corner column is provided with a through hole and a threaded hole, and a screw is passed through the through hole. The external thread of the screw is adapted to the internal thread of the threaded hole. The corner of the external window is placed between the through hole and the threaded hole of the corner column. The external window and the corner column are adjustable and tightly connected by the screw. The close connection between the energy-saving auxiliary frame 2 and the external window significantly improves the performance of the external window. The air tightness, water tightness and wind pressure resistance of the external window are effectively improved. When closed, the external window can better isolate external noise, dust, wind and rain, improving the comfort and cleanliness of the indoor environment. In addition, it effectively improves the structural stability of the building's external windows and enhances the overall earthquake resistance and wind resistance of the building. In extreme weather conditions, the energy-saving auxiliary frame 2 can provide additional protection for the building and reduce the risk of damage to the building. The screw and threaded hole adjustable structure of the corner column facilitates adjustment of the connection between the corner column and the outer window to a suitable clamping force, and the structure of the corner column is easy to install and disassemble, and is easy to use and maintain.

[0040] The waterproof vapor barrier film 3 is laid and arranged on the joint surface between the indoor side of the energy-saving frame 2 and the structural base 1; the waterproof vapor-permeable film 4 is laid and arranged on the joint surface between the outdoor side of the energy-saving frame 2 and the structural base 1; the waterproof vapor barrier film 3 and the waterproof vapor-permeable film 4 are laid on the indoor side and the outdoor side of the outer window respectively, which ensures the air tightness of the outer window when crossing the interface between the inside and outside of the building. The joint of the waterproof vapor barrier film 3 and the waterproof vapor-permeable film 4 is coated with silicone sealant 5, which prevents the joint from having gaps and reducing the air tightness. The air tightness of the indoor side of the outer window and the outdoor side of the outer window is treated respectively in this embodiment, which ensures the air tightness continuity of the outer window.

[0041] The gap at the joint of the energy-saving frame 2 and the structural base 1 is sealed with concrete sealant; the gaps at the joint of the energy-saving frame 2 and the outer window and the joint of the energy-saving frame 2 and the corner column are sealed with silicone sealant. By fully covering and sealing the small gaps at the joints of the structures without omission, the strict air tightness between the outer window, the energy-saving accessory and the structural base is effectively ensured.

[0042] The energy-saving frame 2 comprises a frame structure and a high-thermal-insulation structure, the high-thermal-insulation structure is closely attached to the surface of the outer window and closely laid on the inner side of the frame structure facing the outer window. The high-thermal-insulation structure comprises three layers arranged in order from near to far from the surface of the outer window: a thermal-insulation layer, a protective layer and a waterproof layer.

[0043] The high-thermal-insulation structure is a layer structure wrapped around the peripheral edge of the outer window, which can play a role in thermal insulation and heat insulation. The main role of the thermal-insulation layer is to reduce heat loss, and the thermal-insulation layer is composed of materials with small thermal conductivity. The outer surface of the thermal-insulation layer is the protective layer, which plays a role in protecting the thermal-insulation layer. The protective layer is generally made of a mixture of asbestos fibers and cement to form an asbestos cement shell. The outer surface of the protective layer is the waterproof layer, which prevents water from entering the thermal-insulation layer. The waterproof layer is usually made of oil felt, iron sheet or brushed oil glass cloth.

[0044] In this embodiment, the frame structure adopts an aluminum tensile profile structure, and the surface of the frame structure is coated with an anodized layer or an anti-corrosion spray layer. The aluminum profile structure reduces the procurement cost and is easy to construct; the anodization or anti-corrosion spraying enhances the corrosion resistance and oxidation resistance of the energy-saving frame, and improves the durability of the outer window structure.

[0045] The thermal-insulation layer adopts expanded perlite, expanded vermiculite, diatomite or asbestos, or a thermal-insulation forming material: thermal-insulation tile. The energy-saving frame 2 can effectively reduce the heat transfer between the inside and outside of the building and maintain the stability of the indoor temperature by adopting a high-efficiency thermal-insulation structure, thereby saving energy. Whether in cold winter or hot summer, the energy-saving frame 2 can provide good thermal-insulation effect for the building and create a comfortable living environment for residents.

[0046] The waterproof and vapor-permeable film 4 comprises a three-layer structure: a PP spun-bond non-woven fabric, a PE high-molecular vapor-permeable film, and a PP spun-bond non-woven fabric. The PP spun-bond non-woven fabric mainly enhances the tensile force and hydrostatic pressure and protects the PE high-molecular vapor-permeable film in the middle layer, and the vapor permeability is mainly relied on the PE high-molecular vapor-permeable film in the middle layer. The spacing between gas molecules is large, and the gas molecules can pass through the vapor-permeable holes of the waterproof and vapor-permeable film in the diffusion process. The spacing between liquid molecules is smaller than the spacing of the vapor-permeable holes, and under the action of surface tension, the liquid molecules cannot pass through the waterproof and vapor-permeable film, that is, the waterproof effect is achieved.

[0047] The waterproof and vapor barrier film 3 comprises, from near to far, a metal coating film, a polyethylene film, a warp and weft fabric, and a plastic film, which are sequentially arranged on the structural base layer 1, and the metal coating film, the polyethylene film, the warp and weft fabric, and the plastic film are connected by a hot melt adhesive layer. The waterproof and vapor barrier film 3 prevents the penetration of indoor humid air into the thermal insulation layer. The waterproof and vapor barrier film 3 can isolate water and air and is completely air-tight, so that the penetration of indoor water vapor into the building envelope can be prevented.

[0048] The outer surface of the structural base layer 1 is covered with a waterproof thermal insulation layer. The outer surface of the overall structure of the structural base layer 1 is covered with a waterproof thermal insulation layer, which avoids the energy loss of cold and heat exchange of the structural base layer 1 itself and lays a good foundation for the air-tightness of the building outer window.

[0049] The construction process of the ultra-low energy consumption building outer window air-tightness structure provided by the embodiment of the utility model mainly comprises the following steps:

[0050] Step one, embed the energy-saving attached frame 2 in the interior of the structural base layer 1 to make the energy-saving attached frame 2 stable and reliable, and cover the outer surface of the structural base layer 1 with a waterproof thermal insulation layer to complete the construction of the waterproof and thermal insulation measures of the structural base layer 1.

[0051] Step two, lay the waterproof and vapor barrier film 3 on the joint surface between the indoor side of the energy-saving attached frame 2 and the structural base layer 1 to achieve the waterproof and vapor barrier of the indoor side of the outer window.

[0052] Step three, lay the waterproof and vapor-permeable film 4 on the joint surface between the outdoor side of the energy-saving attached frame 2 and the structural base layer 1 to achieve the waterproof of the outdoor side of the outer window.

[0053] Step four, use the silicone sealant 5 to seal the joint of the waterproof and vapor barrier film 3 and the waterproof and vapor-permeable film 4.

[0054] Thus far, the technical scheme of the present application has been described in connection with the preferred embodiments shown in the drawings, but it is readily understood by those skilled in the art that the protection scope of the present application is obviously not limited to these specific embodiments. Those skilled in the art can make equivalent changes or replacements to the relevant technical features without deviating from the principles of the present application, and the technical schemes after these changes or replacements will all fall within the protection scope of the present application.

[0055] The above description is merely preferred embodiments of the present application and is not intended to limit the present application; for those skilled in the art, the present application can have various changes and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. The airtight structure of the exterior window of an ultra-low energy consumption building is characterized by: include: Structural base, exterior windows, energy-saving auxiliary frames; The energy-saving auxiliary frame is pre-buried at the edge of the structural base connecting the outer window, and the energy-saving auxiliary frame spans the indoor side and the outdoor side of the outer window transversely; the outer window is detachably connected to the energy-saving auxiliary frame; A waterproof vapor barrier film is paved on the interface between the indoor side of the energy-saving auxiliary frame and the structural base layer; a waterproof vapor permeable film is paved on the interface between the outdoor side of the energy-saving auxiliary frame and the structural base layer; The closing parts of the waterproof vapor barrier membrane and the waterproof vapor permeable membrane are both coated with silicone sealant.

2. The airtight structure for exterior windows of ultra-low energy consumption buildings according to claim 1 is characterized in that: A corner column is provided at the corner of the energy-saving auxiliary frame, and the corner column is tightly connected to the energy-saving auxiliary frame. A through hole and a threaded hole are provided on the corner column, and a screw is passed through the through hole. The external thread of the screw is adapted to the internal thread of the threaded hole. The corner of the outer window is placed between the through hole and the threaded hole of the corner column, and the outer window and the corner column are adjustably pressed together by the screw.

3. The airtight structure for exterior windows of ultra-low energy consumption buildings according to claim 2 is characterized in that: The gap between the energy-saving auxiliary frame and the structural base is sealed with concrete sealant; The gaps at the connection between the energy-saving auxiliary frame and the outer window and the gaps at the connection between the energy-saving auxiliary frame and the corner column are both sealed with silicone sealant.

4. The airtight structure for exterior windows of ultra-low energy consumption buildings according to claim 1, characterized in that: The energy-saving auxiliary frame includes: a frame structure and a high-heat-insulation structure. The high-heat-insulation structure is closely attached to the surface of the outer window and is tightly laid on the inner side of the frame structure facing the outer window.

5. The airtight structure for exterior windows of ultra-low energy consumption buildings according to claim 4 is characterized in that: The high thermal insulation structure comprises three layers which are arranged in sequence from near to far from the outer window surface: a thermal insulation layer, a protective layer and a waterproof layer.

6. The airtight structure for exterior windows of ultra-low energy consumption buildings according to claim 4, characterized in that: The frame structure is an aluminum stretched profile structure, and the surface of the frame structure is coated with an anodic oxide layer or an anti-corrosion spray layer.

7. The airtight structure for exterior windows of ultra-low energy consumption buildings according to claim 5, characterized in that: The thermal insulation layer is made of expanded perlite, expanded vermiculite, diatomaceous earth or asbestos, or thermal insulation molding material: thermal insulation tile.

8. The airtight structure for exterior windows of ultra-low energy consumption buildings according to claim 1, characterized in that: The waterproof and breathable membrane comprises a three-layer structure: PP spunbond non-woven fabric, PE polymer breathable membrane, and PP spunbond non-woven fabric.

9. The airtight structure for exterior windows of ultra-low energy consumption buildings according to claim 1, characterized in that: The waterproof vapor barrier membrane includes: a metal coating film, a polyethylene film, a warp and weft knitting fabric, and a plastic film which are arranged in sequence from near to far from the structural base layer. Each layer of the metal coating film, polyethylene film, warp and weft knitting fabric, and plastic film is connected by hot melt adhesive lamination.

10. The airtight structure for exterior windows of ultra-low energy consumption buildings according to claim 1, characterized in that: The outer surface of the structural base layer is covered with a waterproof and heat-insulating layer.

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