CN214195080U

CN214195080U - Composite external wall panel and assembled ultralow-energy-consumption building

Info

Publication number: CN214195080U
Application number: CN202023145356.4U
Authority: CN
Inventors: 王凌云; 潘悦; 焦杨
Original assignee: Beijing University of Civil Engineering and Architecture; China Architecture Design and Research Group Co Ltd
Current assignee: Beijing University of Civil Engineering and Architecture; China Architecture Design and Research Group Co Ltd
Priority date: 2020-12-23
Filing date: 2020-12-23
Publication date: 2021-09-14
Anticipated expiration: 2030-12-23

Abstract

The utility model relates to a building outer wall preparation technical field, concretely relates to composite external wall panel, including evaporating to press layer, vacuum heat insulation layer and the finish coat of inflating, the vacuum heat insulation layer is located evaporate to press and inflate on the layer, the finish coat is located the vacuum heat insulation layer is kept away from evaporate and press one side of inflating the layer. The composite external wall panel manufactured by the autoclaved aeration layer and the vacuum heat insulation layer can meet the technical requirement on ultralow energy consumption of the fabricated building. Meanwhile, the composite external wall panel can be made into prefabricated parts in factories, and can be quickly assembled into an external building enclosure system on site, namely, the construction is directly carried out, so that the construction time is shortened, and the construction period and the construction efficiency are improved. The utility model also provides an assembled ultralow energy consumption building with compound side fascia.

Description

Composite external wall panel and assembled ultralow-energy-consumption building

Technical Field

The utility model relates to a building outer wall preparation technical field, concretely relates to compound side fascia and assembled ultralow energy consumption building.

Background

The fabricated building is beneficial to saving resources and energy and reducing construction pollution, and plays a significant role in dealing with global climate problems. The ultra-low energy consumption building is a novel low energy consumption building which is easy to popularize, and has good heat preservation performance and air tightness and is provided on the basis of the development of zero energy consumption buildings and passive buildings at home and abroad. At present, a large number of fabricated buildings and ultra-low energy consumption buildings are built at home and abroad, relatively complete technical systems are formed in the two fields, but the technology for forming the fabricated ultra-low energy consumption building by combining the two technical systems is not complete, and the difficulty is mainly focused on the design of the external wall board.

The traditional building block exterior wall combination is usually made of common heat insulation materials and mainly comprises the following components: the glass fiber reinforced inorganic plates are arranged on the outermost layers of the two sides, the two layers of vacuum insulation plates are contacted with the inner sides of the glass fiber reinforced inorganic plates, and the polystyrene plate is arranged in the middle. The ultra-low energy consumption building requires that k is more than or equal to 0.15 and less than or equal to 0.20, and the assembled building requires that the peripheral retaining wall is assembled, namely is formed by non-masonry. Therefore, the requirements of assembly type and ultra-low energy consumption cannot be met simultaneously.

SUMMERY OF THE UTILITY MODEL

Therefore, the to-be-solved technical problem of the utility model lies in overcoming the defect that the enclosure wall can't satisfy assembled and the ultralow energy consumption requirement simultaneously among the prior art to a composite side fascia and the ultralow energy consumption building of assembled that can satisfy assembled and ultralow energy consumption requirement simultaneously are provided.

In order to solve the technical problem, the utility model provides a composite external wall panel, including evaporating to press layer, vacuum heat insulation layer and the finish coat of aerifing, the vacuum heat insulation layer is located evaporate to press to aerify on the layer, the finish coat is located the vacuum heat insulation layer is kept away from evaporate one side that presses layer of aerifing.

Optionally, the thickness of the autoclaved aerated layer is greater than or equal to 260 mm.

Optionally, the autoclaved aerated concrete slab is an autoclaved aerated concrete slab.

Optionally, the thickness of the vacuum insulation layer is greater than or equal to 40 mm.

Optionally, the vacuum insulation layer includes at least two layers of vacuum insulation panels, and the two layers of vacuum insulation panels are arranged in a staggered manner.

Optionally, a connecting piece for connection is arranged between the autoclaved aeration layer and the vacuum heat insulation layer.

Optionally, the connecting piece is a bonding mortar.

Optionally, the finishing layer comprises mortar and paint, the mortar is coated on the outer surface of the vacuum heat insulation layer, and the paint is coated on the outer surface of the mortar.

The utility model also provides an assembled ultralow energy consumption building, include the composite external wall panel.

The utility model discloses technical scheme has following advantage:

1. the utility model provides a composite external wall panel, including evaporating and pressing air entrainment layer, vacuum heat insulation layer and finish coat, the vacuum heat insulation layer is located evaporate and press on the air entrainment layer, the finish coat is located the vacuum heat insulation layer is kept away from evaporate and press one side of air entrainment layer.

Through the combination of the autoclaved aeration layer and the vacuum heat insulation layer, the autoclaved aeration layer and the vacuum heat insulation layer have lower heat conductivity coefficients, so that the composite external wall panel manufactured by the autoclaved aeration layer and the vacuum heat insulation layer can meet the technical requirement on ultralow energy consumption of the fabricated building. Meanwhile, the composite external wall panel can be made into prefabricated parts in factories, and can be quickly assembled into an external building enclosure system on site, namely, the construction is directly carried out, so that the construction time is shortened, and the construction period and the construction efficiency are improved.

2. The utility model provides a composite external wall panel, the vacuum heat insulation layer comprises at least two layers of vacuum heat insulation boards, and the two layers of vacuum heat insulation boards are arranged in a staggered way; the two layers of vacuum insulation panels are arranged in a staggered joint mode, the vacuum insulation panel of the other layer is arranged at the joint of two adjacent vacuum insulation panels on the same layer along the length direction, temperature leakage of the joint of the two adjacent vacuum insulation panels on the same layer along the length direction is prevented, and therefore the heat insulation performance of the vacuum layer is guaranteed. The double-layer vacuum insulation panel can effectively avoid heat transfer caused by air convection, and further reduce the energy consumption of the composite external wall panel.

3. The utility model provides a composite external wall panel, a connecting piece for connection is arranged between the autoclaved aeration layer and the vacuum heat insulation layer; the connecting piece is bonding mortar, and the autoclaved aeration layer and the vacuum heat insulation layer can be bonded together through the bonding mortar, so that the autoclaved aeration layer and the vacuum heat insulation layer are bonded into a whole, and the bonding strength is ensured.

4. The utility model provides a composite external wall panel, the finish coat is for including mortar and coating, the mortar coating is in the surface of vacuum heat insulation layer, coating coat in the surface of mortar. Since the exterior wall panel needs to be exposed to the atmosphere for a long time, it is subjected to wind, sunlight, rain, and cold and hot air changes. Firstly, coating mortar on the vacuum heat insulation layer, leveling the surface of the vacuum heat insulation layer, and meanwhile, the mortar also has better waterproof performance, weather resistance and stain resistance; therefore, the mortar is coated on the outer surface of the vacuum heat insulation layer, so that the waterproof property of the composite external wall panel is effectively improved, and the service life of the composite external wall panel is also ensured. And then coating paint on the outer surface of the mortar, thereby increasing the effect of decorating the composite external wall panel and enabling the appearance of the composite external wall panel to be more beautiful and tidy.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is the structural schematic diagram of the composite external wall panel provided by the present invention.

1-steam-pressing air-adding layer; 2-vacuum heat insulating layer; and 3, finishing coat.

Detailed Description

The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but 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 thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Please refer to fig. 1, an embodiment of the present invention provides a composite external wall panel, which comprises an autoclaved aeration layer 1, a vacuum heat insulation layer 2 and a veneer layer 3, wherein the vacuum heat insulation layer 2 is disposed on the autoclaved aeration layer 1, and the veneer layer 3 is disposed on one side of the vacuum heat insulation layer 2 away from the autoclaved aeration layer 1.

Through the combination of the autoclaved aeration layer 1 and the vacuum heat insulation layer 2, the autoclaved aeration layer 1 and the vacuum heat insulation layer 2 have lower heat conductivity coefficients, so that the composite external wall panel manufactured by the autoclaved aeration layer 1 and the vacuum heat insulation layer 2 can meet the technical requirement on ultralow energy consumption of the fabricated building. Meanwhile, the composite external wall panel can be made into prefabricated parts in factories, and can be quickly assembled into an external building enclosure system on site, namely, the construction is directly carried out, so that the construction time is shortened, and the construction period and the construction efficiency are improved.

Wherein, the autoclaved aerated concrete slab 1 is an autoclaved aerated concrete slab. The autoclaved aerated concrete slab is a novel light porous green environment-friendly building material which takes cement, lime, silica sand and the like as main raw materials, is added with different quantities according to the structural requirements, and is a steel bar net piece subjected to antiseptic treatment. And has excellent fire-proof, fireproof, sound-proof, heat-insulating and heat-preserving performances. Specifically, the thickness of the autoclaved aerated layer 1 is more than or equal to 260 mm; in this embodiment, the thickness of the autoclaved aerated concrete slab is 260 mm.

The vacuum heat insulation layer 2 comprises at least two layers of vacuum heat insulation plates, and the two layers of vacuum heat insulation plates are arranged in a staggered mode; the two layers of vacuum insulation panels are arranged in a staggered joint mode, the vacuum insulation panel of the other layer is arranged at the joint of two adjacent vacuum insulation panels on the same layer along the length direction, the temperature leakage of the joint of the two adjacent vacuum insulation panels on the same layer along the length direction is prevented, and therefore the heat insulation performance of the vacuum layer 2 is guaranteed. The vacuum insulation panel is one of vacuum insulation materials and is formed by compounding a filling core material and a vacuum protection surface layer; the heat transfer caused by air convection can be effectively avoided, so that the heat conductivity coefficient can be greatly reduced to 0.002-0.004w/m.k, and the heat conductivity coefficient of the vacuum heat-insulating plate is one tenth of that of the traditional heat-insulating material. Specifically, the thickness of the vacuum heat insulating layer 2 is greater than or equal to 40 mm; in the present embodiment, the thickness of the vacuum insulation layer 2 is equal to 40 mm.

Setting the thickness of the autoclaved aerated concrete slab to be 260mm and the thickness of the vacuum heat insulation slab to be 40mm according to the requirements of 'residential building energy-saving design standard' DB/891-2019 'of Beijing City and' ultra-low energy consumption residential building design standard 'DB 11/T1655-2019' of Beijing City, wherein the heat conductivity coefficient of the autoclaved aerated concrete slab is 0.160W/(m.K), the finishing coefficient is 1.00, the thermal resistance is 1.625m2.K/W, and the heat transfer coefficient K [ W/m2.K/W ] of the main section is 5.79; the heat conductivity coefficient of the vacuum heat insulation plate is 0.008W/(m.K), the finishing coefficient is 1.20, the thermal resistance is 4.167m2.K/W, and the heat transfer coefficient K [ W/m2.K/W ] of the main section is 5.95; the calculated limit value of the ultra-low energy consumption is 0.17, and k is limited to be less than or equal to 0.20 and more than or equal to 0.15 in the range of the external sheath heat transfer coefficient required by the ultra-low energy consumption building.

Further, a connecting piece (not shown in the figure) for connection is arranged between the autoclaved aerated layer 1 and the vacuum heat-insulating layer 2; in this embodiment, the connecting piece is bonding mortar for building, and through the setting of bonding mortar, can be in the same place evaporating and pressing air entrainment layer 1 and vacuum heat insulation layer 2 laminating for evaporate and press air entrainment layer 1 and vacuum heat insulation layer 2 to paste into an organic whole, guaranteed adhesion strength.

As an alternative embodiment, the connecting piece may also be a bolt, which may be inserted through the autoclaved aerated layer 1 and the vacuum heat-insulating layer 2, so as to connect the autoclaved aerated layer 1 and the vacuum heat-insulating layer 2, but at the same time, building glue is also required to be applied between the autoclaved aerated layer 1 and the vacuum heat-insulating layer 2, so as to ensure that the autoclaved aerated layer 1 and the vacuum heat-insulating layer 2 are completely attached without any gap. Wherein, the bolt is buried in evaporating pressure gas addition layer 1 and vacuum heat insulating layer 2 preferably, avoids protruding in evaporating the surface of evaporating pressure gas addition layer 1 and vacuum heat insulating layer 2, and influence the concatenation in later stage.

In this embodiment, the finishing layer 3 includes mortar coated on the outer surface of the vacuum insulation layer and paint coated on the outer surface of the mortar. Since the exterior wall panel needs to be exposed to the atmosphere for a long time, it is subjected to wind, sunlight, rain, and cold and hot air changes. Firstly, coating mortar on the vacuum heat insulation layer, leveling the surface of the vacuum heat insulation layer, and meanwhile, the mortar also has better waterproof performance, weather resistance and stain resistance; therefore, the mortar coating facing layer is coated on the outer surface of the vacuum heat insulation layer 2, so that the waterproofness of the composite external wall panel is effectively improved, and the service life of the composite external wall panel is ensured. And then coating paint on the outer surface of the mortar, thereby increasing the effect of decorating the composite external wall panel and enabling the appearance of the composite external wall panel to be more beautiful and tidy.

The utility model also provides an assembled ultralow energy consumption building, include composite side fascia.

The composite external wall panel is formed by combining the autoclaved aeration layer 1 and the vacuum heat-insulating layer 2 together, and the autoclaved aeration layer 1 and the vacuum heat-insulating layer 2 have lower heat conductivity coefficients, so that the composite external wall panel manufactured by using the autoclaved aeration layer 1 and the vacuum heat-insulating layer 2 can meet the technical requirement on ultralow energy consumption of an assembly type building. Meanwhile, the composite external wall panel can be made into prefabricated parts in factories, and can be quickly assembled into an external building enclosure system on site, namely, the construction is directly carried out, so that the construction time is shortened, and the construction period and the construction efficiency are improved.

It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications therefrom are within the scope of the invention.

Claims

1. A composite exterior wall panel, comprising:

the heat insulation structure comprises an autoclaved aeration layer (1), a vacuum heat insulation layer (2) and a veneer layer (3), wherein the vacuum heat insulation layer (2) is arranged on the autoclaved aeration layer (1), and the veneer layer (3) is arranged on one side, far away from the autoclaved aeration layer (1), of the vacuum heat insulation layer (2).

2. The composite external wall panel according to claim 1, wherein the thickness of the autoclaved aerated layer (1) is greater than or equal to 260 mm.

3. The composite external wall panel according to claim 2, wherein the autoclaved aerated concrete layer (1) is an autoclaved aerated concrete panel.

4. The composite external wall panel according to claim 1, wherein the thickness of the vacuum insulation layer (2) is greater than or equal to 40 mm.

5. The composite external wall panel according to claim 4, wherein the vacuum insulation layer (2) comprises at least two vacuum insulation panels, and the two vacuum insulation panels are arranged in a staggered manner.

6. The composite external wall panel according to any one of claims 1 to 5, wherein a connector for connection is arranged between the autoclaved aerated concrete layer (1) and the vacuum heat insulating layer (2).

7. The composite exterior wall panel according to claim 6, wherein the joining member is a bonding mortar.

8. The composite external wall panel according to claim 6, wherein the finishing layer (3) comprises mortar coated on the outer surface of the vacuum insulation layer and paint coated on the outer surface of the mortar.

9. A fabricated ultra low energy building comprising the composite exterior wall panel of any one of claims 1 to 8.