A water-conducting, ultra-low energy consumption thermal insulation exterior wall panel for hot-summer and warm-winter regions

Abstract

This invention relates to the field of thermal insulation exterior wall panel technology, and in particular to a water-conducting, ultra-low energy consumption thermal insulation exterior wall panel for hot-summer and warm-winter regions. It comprises, from the outside in, an outer leaf wall panel, a ventilation groove, a waterproof and breathable membrane, an oriented rock wool insulation board, an aerogel insulation layer, and an inner leaf wall panel. The outer leaf wall panel, the ventilation groove, the waterproof and breathable membrane, the oriented rock wool insulation board, the aerogel insulation layer, and the inner leaf wall panel are fixedly connected by a truss steel reinforcement assembly. The ventilation groove is a cavity structure composed of rigid plates, and multiple through holes are provided on the plate body of the ventilation groove near the waterproof and breathable membrane. This invention's water-conducting, ultra-low energy consumption thermal insulation exterior wall panel for hot-summer and warm-winter regions not only has excellent thermal insulation effects but also excellent waterproof and breathable effects, effectively reducing indoor humidity and providing a stable and comfortable indoor environment in hot-summer and warm-winter regions.

Description

Technical Field

[0001] This invention relates to the field of thermal insulation exterior wall panel technology, and in particular to a water-conducting, ultra-low energy consumption thermal insulation exterior wall panel for hot summer and warm winter regions. Background Technology

[0002] Precast concrete sandwich insulated exterior wall panels consist of outer leaf wall panels, an insulation layer, and inner leaf wall panels. The insulation layer is located between the outer and inner leaf wall panels, which are connected together to form a whole. Precast concrete sandwich insulated exterior wall panels have excellent thermal insulation properties and are widely used in engineering projects. Furthermore, using precast concrete wall panels to construct prefabricated large-panel buildings can increase the degree of factory and mechanized construction, reduce on-site wet work, save on-site labor, overcome seasonal influences, and shorten the construction cycle.

[0003] In existing precast concrete sandwich wall panel technology, the outer leaf wall is generally a 60mm thick reinforced concrete slab, and the insulation board is about 40-100mm thick. This results in problems such as the outer leaf wall panel being heavy, prone to cracking and water seepage, and having poor durability; the thick insulation board also leads to an overall thicker sandwich wall panel, which is inconvenient for construction and detrimental to low-carbon and energy-saving practices.

[0004] In addition, in hot-summer and warm-winter regions, the summer temperature is high, the air conditioning energy consumption is large, and there is a lot of rain and high humidity. The winter temperature is also relatively high, and the indoor temperature is damp. Therefore, the requirements for the waterproof and breathable performance of the external enclosure system are high.

[0005] However, to date, there has been no in-depth research on energy-saving technologies for building exterior walls applicable to hot-summer and warm-winter regions, and conventional exterior and interior wall insulation technologies are not effectively applicable to these regions.

[0006] In view of this, the present invention is proposed. Summary of the Invention

[0007] The purpose of this invention is to provide a water-conducting ultra-low energy consumption thermal insulation exterior wall panel for hot summer and warm winter regions. This water-conducting ultra-low energy consumption thermal insulation exterior wall panel not only has excellent thermal insulation effect, but also excellent waterproof and breathable effect. In hot summer and warm winter regions, it can effectively reduce indoor humidity and solve problems such as high summer temperature and rain, and indoor dampness in winter.

[0008] This invention provides a water-conducting, ultra-low energy consumption thermal insulation exterior wall panel for hot summer and warm winter regions, comprising, from the outside to the inside, an outer leaf wall panel, a ventilation groove, a waterproof and breathable membrane, an oriented rock wool insulation board, an aerogel insulation layer, and an inner leaf wall panel. The outer leaf wall panel, the ventilation groove, the waterproof and breathable membrane, the oriented rock wool insulation board, the aerogel insulation layer, and the inner leaf wall panel are fixedly connected by a truss steel reinforcement assembly. The ventilation groove is a cavity structure composed of rigid plates, and multiple through holes are provided on the plate of the ventilation groove near the waterproof and breathable membrane.

[0009] As a preferred embodiment of this technical solution, the ventilation septum has multiple grooves spaced apart on the plate body near the outer leaf wall panel, and the outer leaf wall panel has protrusions corresponding to the grooves.

[0010] As a preferred embodiment of this technical solution, the waterproof and breathable membrane is either a polyethylene membrane or a fiberglass cloth, and the thickness of the waterproof and breathable membrane is 1-2 mm.

[0011] As a preferred embodiment of this technical solution, the outer leaf wall panel is made of ultra-high performance concrete, and the thickness of the outer leaf wall panel is 25-35mm.

[0012] As a preferred embodiment of this technical solution, the inner leaf wall panel is made of reinforced concrete and the thickness of the inner leaf wall panel is 100-140mm.

[0013] As a preferred embodiment of this technical solution, the thickness of the oriented rock wool insulation board is 30-50mm, and the thermal conductivity of the oriented rock wool insulation board is ≤0.035W / (mk).

[0014] As a preferred embodiment of this technical solution, the thickness of the aerogel insulation layer is 8-12 mm, and the thermal conductivity of the aerogel used in the aerogel insulation layer is 0.015-0.1 W / (mk).

[0015] As a preferred embodiment of this technical solution, the outer leaf wall panel has multiple cold-drawn low-carbon steel wires or hot-rolled ribbed steel bars arranged parallel to each other along its longitudinal direction, and multiple reinforcing steel bars are spaced apart at both ends of the outer leaf wall panel along its transverse direction; the inner leaf wall panel has multiple cold-drawn low-carbon steel wires or hot-rolled ribbed steel bars arranged crisscrossingly.

[0016] As a preferred embodiment of this technical solution, the truss reinforcement tie assembly includes independent reinforcement ties, continuous reinforcement ties, and multiple reinforcement fasteners; the multiple reinforcement fasteners are respectively disposed in the outer leaf wall panel and the inner leaf wall panel, and the two ends of the independent reinforcement ties and the continuous reinforcement ties are respectively fixed to the corresponding reinforcement fasteners in the outer leaf wall panel and the inner leaf wall panel.

[0017] As a preferred embodiment of this technical solution, the outer leaf wall panel is provided with an outer finishing layer on the side away from the ventilation duct, and the outer finishing layer is a mortar coating finishing layer; the inner leaf wall panel is fixedly connected with a waterproof layer on the side away from the aerogel insulation layer, and an insulation layer is provided on the outside of the waterproof layer.

[0018] The water-conducting, ultra-low energy consumption thermal insulation exterior wall panel for hot summer and warm winter regions of the present invention has at least the following beneficial effects:

[0019] The present invention relates to a water-conducting, ultra-low energy consumption thermal insulation exterior wall panel for hot summer and warm winter regions, comprising, from the outside to the inside, an outer leaf wall panel, a ventilation duct, a waterproof and breathable membrane, an oriented rock wool insulation board, an aerogel insulation layer, and an inner leaf wall panel. The outer leaf wall panel is made of ultra-high performance concrete (UHPC), which not only improves the strength and durability of the sandwich wall panel and reduces the risk of cracking, but also reduces the total amount of concrete used, aligning with the general direction of low-carbon emission reduction. The inner leaf wall panel is a reinforced concrete cladding panel, connected to the outer leaf wall panel by truss reinforcement, which better meets the requirements of stiffness, strength, and durability of the sandwich wall panel. Compared with traditional rock wool boards, the oriented rock wool insulation board is lightweight and high-strength, with a lower thermal conductivity, thereby further reducing the thickness of the insulation material. This invention reduces the cross-sectional height of the precast sandwich wall panel, decreases the height of the truss reinforcement assembly, and increases the effective indoor usable area. Furthermore, it possesses excellent fireproof, waterproof, and moisture-proof properties, effectively improving the durability and stability of the precast concrete sandwich insulated wall panel. A ventilation groove and a waterproof breathable membrane are also provided between the outer leaf wall panel and the oriented rock wool insulation board. These allow indoor water vapor to permeate to the outside while preventing outdoor water from entering the room. Finally, an aerogel insulation layer is also provided between the inner leaf wall panel and the oriented rock wool insulation board. The aerogel insulation layer has excellent thermal insulation, fireproof, and other properties, providing superior thermal insulation and fireproofing effects.

[0020] Therefore, the water-conducting ultra-low energy consumption thermal insulation exterior wall panel of the present invention for hot summer and warm winter regions not only has excellent thermal insulation effect, but also excellent waterproof and breathable effect. In hot summer and warm winter regions, it can effectively reduce indoor humidity and provide a stable and comfortable indoor environment. At the same time, the precast concrete sandwich insulated exterior wall panel not only improves the strength and durability of the sandwich wall panel and reduces the risk of cracking, but also reduces the total amount of concrete used, which is in line with the general direction of low carbon emission reduction, and can also play a role in preventing fires caused by exterior wall materials. Attached Figure Description

[0021] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0022] Figure 1 This is a cross-section of the water-conducting, ultra-low energy consumption thermal insulation exterior wall panel for hot summer and warm winter regions according to the present invention. Figure 1 ;

[0023] Figure 2 This is a cross-section of the water-conducting, ultra-low energy consumption thermal insulation exterior wall panel for hot summer and warm winter regions according to the present invention. Figure 2 ;

[0024] Figure 3 This is a cross-section of the water-conducting, ultra-low energy consumption thermal insulation exterior wall panel for hot summer and warm winter regions according to the present invention. Figure 3 ;

[0025] Figure 4 This is a schematic diagram of the outer leaf wall panel in the water-conducting ultra-low energy consumption thermal insulation exterior wall panel for hot summer and warm winter regions of the present invention.

[0026] Figure 5 This is a schematic diagram of the ventilation groove in the water-conducting ultra-low energy consumption thermal insulation exterior wall panel for hot summer and warm winter regions according to the present invention.

[0027] Explanation of reference numerals in the attached figures:

[0028] 1: Outer leaf wall panel; 2: Ventilation groove; 3: Oriented rock wool insulation board; 4: Aerogel insulation layer; 5: Inner leaf wall panel; 6: Hot-rolled ribbed steel structure; 7: Reinforcing steel bar; 8: Independent steel bar tie; 9: Continuous steel bar tie; 10: Steel bar fastener; 11: Exterior finishing layer. Detailed Implementation

[0029] The technical solution of the present invention will be clearly and completely described below with reference to the embodiments. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0030] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting this invention.

[0031] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the stated features. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified. Furthermore, the terms "installed," "connected," and "linked" should be interpreted broadly; for example, they may refer to a fixed connection, a detachable connection, or an integral connection; they may refer to a mechanical connection or an electrical connection; they may refer to a direct connection or an indirect connection through an intermediate medium; and they may refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0032] like Figure 1-5 As shown, this embodiment provides a water-conducting ultra-low energy consumption thermal insulation exterior wall panel for hot summer and warm winter regions. It includes an outer leaf wall panel 1, a ventilation groove 2, a waterproof and breathable membrane, an oriented rock wool insulation board 3, an aerogel insulation layer 4, and an inner leaf wall panel 5, arranged sequentially from the outside to the inside. The outer leaf wall panel 1, the ventilation groove 2, the waterproof and breathable membrane, the oriented rock wool insulation board 3, the aerogel insulation layer 4, and the inner leaf wall panel 5 are fixedly connected by a truss steel reinforcement assembly. The ventilation groove 2 is a cavity structure composed of rigid plates, and multiple through holes are provided on the plate near the waterproof and breathable membrane side of the ventilation groove 2.

[0033] This embodiment of a water-conducting, ultra-low energy consumption thermal insulation exterior wall panel for hot-summer and warm-winter regions includes, from the outside in, an outer leaf wall panel 1, a ventilation groove 2, a waterproof and breathable membrane, an oriented rock wool insulation board 3, an aerogel insulation layer 4, and an inner leaf wall panel 5. The outer leaf wall panel 1 is made of ultra-high performance concrete (UHPC), which not only improves the strength and durability of the sandwich wall panel and reduces the risk of cracking, but also reduces the total amount of concrete used, aligning with the general direction of low-carbon emission reduction. The inner leaf wall panel 5 is a reinforced concrete enclosure wall panel, connected to the outer leaf wall panel 1 by truss reinforcement, better meeting the requirements of stiffness, strength, and durability of the sandwich wall panel. Compared with traditional rock wool boards, the oriented rock wool insulation board 3 is lightweight and high-strength, with a lower thermal conductivity, thereby further reducing the thickness of the insulation material, reducing the cross-sectional height of the prefabricated sandwich wall panel, reducing the height of the truss reinforcement tie assembly, and increasing the effective indoor usable area. Furthermore, it also possesses excellent fire resistance and heat resistance. The water-proof performance effectively improves the durability and stability of the precast concrete sandwich insulated exterior wall panel. A ventilation groove 2 and a waterproof and breathable membrane are also provided between the outer leaf wall panel 1 and the oriented rock wool insulation board 3. These allow indoor water vapor to permeate to the outside while preventing outdoor water from entering the room. Specifically, the ventilation groove 2 is a cavity structure composed of rigid panels, and multiple through holes are provided on the panel near the waterproof and breathable membrane. Therefore, indoor moisture can enter the ventilation groove 2 through the waterproof and breathable membrane and through the holes, and the moisture in the ventilation groove 2 will gradually evaporate under the influence of the external environment. Similarly, outdoor water will not enter the room due to the waterproof and breathable membrane. Finally, an aerogel insulation layer 4 is also provided between the inner leaf wall panel 5 and the oriented rock wool insulation board 3. The aerogel insulation layer 4 has excellent thermal insulation, fireproofing, and other properties, providing excellent thermal insulation and fireproofing effects.

[0034] Therefore, this water-conducting, ultra-low energy consumption thermal insulation exterior wall panel for hot-summer and warm-winter regions not only has excellent thermal insulation effects but also excellent waterproof and breathable properties. In hot-summer and warm-winter regions, it can effectively reduce indoor humidity and provide a stable and comfortable indoor environment. At the same time, this precast concrete sandwich insulated exterior wall panel not only improves the strength and durability of the sandwich wall panel and reduces the risk of cracking, but also reduces the total amount of concrete used, which is in line with the general direction of low-carbon emission reduction and can also play a role in preventing fires caused by exterior wall materials.

[0035] In this embodiment, the ventilation duct 2 has multiple grooves spaced apart on the side of the plate near the outer leaf wall panel 1, and the outer leaf wall panel 1 has protrusions corresponding to the grooves. Therefore, the outer leaf wall panel 1 and the ventilation duct 2 can be further strengthened by the interlocking of the protrusions and grooves. Specifically, since the width of the entire ventilation duct 2 is between 20-40mm, the depth of the groove can be any value between 20-30mm.

[0036] It should also be noted that since the ventilation groove 2 is a cavity structure composed of rigid plates, the present invention does not strictly limit the material of the rigid plates, which can be PVC or other rigid polymer materials.

[0037] Based on the above technical solution, it is further preferred that the waterproof and breathable membrane is either a polyethylene membrane or a fiberglass cloth, and the thickness of the waterproof and breathable membrane is 1-2 mm.

[0038] Based on the above technical solution, and further preferably, the ultra-high performance concrete (UPLC) used in the outer leaf wall panel 1 of this embodiment is doped with steel fibers, thus possessing excellent strength and crack resistance. Furthermore, the outer leaf wall panel 1 of this embodiment can be further finished with special mortar to enhance the rust resistance of the steel fibers and improve its durability. Specifically, the thickness of the outer leaf wall panel 1 in this embodiment is any value between 25-35 mm, and preferably 30 mm.

[0039] The inner leaf wall panel 5 is made of reinforced concrete and has a thickness of 100-140mm.

[0040] The oriented rock wool insulation selected in this embodiment is lightweight and high-strength, with a lower thermal conductivity (thermal conductivity ≤0.035W / (mk)). This allows for a further reduction in the thickness of the insulation material, a reduction in the cross-sectional height of the precast sandwich wall panel, a reduction in the height of the truss steel reinforcement tie assembly, and an increase in the effective indoor usable area. In addition, it also has excellent fireproof, waterproof and moisture-proof properties, effectively improving the durability and stability of the precast concrete sandwich insulated wall panel. Specifically, the thickness of the oriented rock wool insulation board 3 is any value between 30-50mm, and preferably 40mm.

[0041] The aerogel insulation layer 4 selected in this embodiment is lightweight, has good thermal insulation performance, high load-bearing capacity, high compressive and tensile strength, and excellent waterproof performance, which can effectively prevent water of various forms from eroding the precast sandwich exterior wall panel. Specifically, the thickness of the aerogel insulation layer 4 in this embodiment is any value between 8-12mm, preferably 10mm, and the thermal conductivity of the aerogel used in the aerogel insulation layer 4 is 0.015-0.1W / (mk).

[0042] Based on the above technical solution, and further preferably, multiple cold-drawn low-carbon steel wire or hot-rolled ribbed steel bar structures 6 are arranged parallel to each other along the longitudinal direction inside the outer leaf wall panel 1, and multiple reinforcing steel bars 7 are arranged at intervals along the transverse direction at both ends of the outer leaf wall panel 1; multiple cold-drawn low-carbon steel wire or hot-rolled ribbed steel bar structures 6 are arranged crisscrossingly inside the inner leaf wall panel 5, so as to first ensure the strength and durability of the outer leaf wall panel 1 and the inner leaf wall panel 5.

[0043] In this embodiment, the truss reinforcement tie assembly includes independent reinforcement tie members 8, continuous reinforcement tie members 9, and multiple reinforcement fasteners 10. The multiple reinforcement fasteners 10 are respectively disposed in the outer leaf wall panel 1 and the inner leaf wall panel 5. The two ends of the independent reinforcement tie members 8 and the continuous reinforcement tie members 9 are respectively fixed to the corresponding reinforcement fasteners 10 in the outer leaf wall panel 1 and the inner leaf wall panel 5. By tying and fixing the reinforcement fasteners 10 in the outer leaf wall panel 1 and the inner leaf wall panel 5 with the independent reinforcement tie members 8 and the continuous reinforcement tie members 9, not only is the overall structure of the precast concrete sandwich insulated exterior wall panel constrained, but the problem of excessive stress on the independent reinforcement tie members 8 and the continuous reinforcement tie members 9 is also avoided.

[0044] In addition, to further enhance the decorative function of the precast concrete sandwich insulated exterior wall panel, an exterior finishing layer 11 is provided on the side of the outer leaf wall panel 1 away from the oriented rock wool insulation board 3. Specifically, the exterior finishing layer 11 can be a mortar coating finishing layer.

[0045] Finally, based on the above technical solution, more preferably, a waterproof layer and a thermal insulation layer can be further fixedly installed on the side of the inner leaf wall panel 5 away from the aerogel insulation layer 4, so as to further improve the waterproof and thermal insulation effect of the inner leaf wall panel 5. The specific materials of the waterproof layer and the thermal insulation layer are not strictly limited, and conventional waterproof and thermal insulation materials in the prior art can be used.

[0046] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the above embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A water-conducting, ultra-low energy consumption thermal insulation exterior wall panel for hot-summer and warm-winter regions, characterized in that: The structure includes an outer leaf wall panel (1), a ventilation duct (2), a waterproof and breathable membrane, an oriented rock wool insulation board (3), an aerogel insulation layer (4), and an inner leaf wall panel (5) arranged sequentially from the outside to the inside. The outer leaf wall panel (1), the ventilation duct (2), the waterproof and breathable membrane, the oriented rock wool insulation board (3), the aerogel insulation layer (4), and the inner leaf wall panel (5) are fixedly connected by a truss steel reinforcement tie assembly. The ventilation septum (2) is a cavity structure composed of rigid plates, and the ventilation septum (2) has multiple through holes on the plate near the waterproof and breathable membrane. The truss reinforcement tie assembly includes an independent reinforcement tie member (8), a continuous reinforcement tie member (9), and multiple reinforcement fasteners (10); Multiple steel reinforcement fasteners (10) are respectively disposed in the outer leaf wall panel (1) and the inner leaf wall panel (5), and the two ends of the independent steel reinforcement tie member (8) and the continuous steel reinforcement tie member (9) are respectively fixed on the corresponding steel reinforcement fasteners (10) in the outer leaf wall panel (1) and the inner leaf wall panel (5); The outer leaf wall panel (1) is finished with special mortar.

2. The water-conducting, ultra-low energy consumption thermal insulation exterior wall panel for hot summer and warm winter regions according to claim 1, characterized in that, The ventilation sump (2) has multiple grooves spaced apart on the side of the plate near the outer leaf wall plate (1), and the outer leaf wall plate (1) has protrusions corresponding to the grooves.

3. The water-conducting, ultra-low energy consumption thermal insulation exterior wall panel for hot summer and warm winter regions according to claim 1, characterized in that, The waterproof and breathable membrane is either a polyethylene membrane or a fiberglass cloth, and the thickness of the waterproof and breathable membrane is 1-2 mm.

4. The water-conducting, ultra-low energy consumption thermal insulation exterior wall panel for hot summer and warm winter regions according to claim 1, characterized in that, The outer leaf wall panel (1) is made of ultra-high performance concrete, and the thickness of the outer leaf wall panel (1) is 25-35mm.

5. The water-conducting, ultra-low energy consumption thermal insulation exterior wall panel for hot summer and warm winter regions according to claim 1, characterized in that, The inner leaf wall panel (5) is made of reinforced concrete and has a thickness of 100-140mm.

6. The water-conducting, ultra-low energy consumption thermal insulation exterior wall panel for hot summer and warm winter regions according to claim 1, characterized in that, The thickness of the oriented rock wool insulation board (3) is 30-50mm, and the thermal conductivity of the oriented rock wool insulation board (3) is ≤0.035W / (mk).

7. The water-conducting, ultra-low energy consumption thermal insulation exterior wall panel for hot summer and warm winter regions according to claim 1, characterized in that, The thickness of the aerogel insulation layer (4) is 8-12 mm, and the thermal conductivity of the aerogel used in the aerogel insulation layer (4) is 0.015-0.1 W / (mk).

8. The water-conducting, ultra-low energy consumption thermal insulation exterior wall panel for hot summer and warm winter regions according to claim 1, characterized in that, Multiple cold-drawn low-carbon steel wires or hot-rolled ribbed steel bars (6) are arranged parallel to each other along the longitudinal direction inside the outer leaf wall panel (1), and multiple reinforcing steel bars (7) are arranged at intervals along the transverse direction at both ends of the outer leaf wall panel (1). The inner leaf wall panel (5) is provided with multiple cold-drawn low-carbon steel wires or hot-rolled ribbed steel bars (6) arranged in a crisscross pattern.

9. The water-conducting, ultra-low energy consumption thermal insulation exterior wall panel for hot summer and warm winter regions according to claim 1, characterized in that, The outer leaf wall panel (1) is provided with an outer finishing layer (11) on the side away from the ventilation duct (2), and the outer finishing layer (11) is a mortar coating finishing layer; A waterproof layer is fixedly connected to the side of the inner leaf wall panel (5) away from the aerogel insulation layer (4), and an insulation layer is provided on the outside of the waterproof layer.

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