Fireproof insulation board for building outer wall

Abstract

The utility model discloses a building outer wall fireproof insulation board, and relates to the technical field of insulation boards, the building outer wall fireproof insulation board comprises a decoration layer, a first fireproof layer, an insulation layer and a reinforcing layer which are sequentially arranged from outside to inside, every two adjacent layers are connected, the building outer wall fireproof insulation board further comprises a second fireproof layer, the second fireproof layer is arranged between the insulation layer and the reinforcing layer, and a first mounting groove is formed in the first fireproof layer; a second mounting groove is formed in the second fireproof layer, the first mounting groove and the second mounting groove are oppositely formed and form a storage cavity, and the heat preservation layer is arranged in the storage cavity. The effect of improving the fireproof and thermal insulation performance of the external wall thermal insulation decorative board is achieved.

Description

Technical Field

[0001] This application relates to the technical field of insulation boards, and in particular to a fireproof insulation board for building exterior walls. Background Technology

[0002] Building exterior walls are a crucial factor in determining building quality. In winter, the pressure of outdoor winds causes cold air to penetrate from the windward walls into the interior, while the temperature difference between indoors and outdoors allows warm air to permeate from the interior walls to the exterior walls. Wind and thermal pressure cause air infiltration through the exterior walls, resulting in heat loss that is detrimental to wall insulation. In hot regions and the Yangtze River Delta and its transitional areas, intense solar radiation in summer allows outdoor heat to enter the interior through the exterior walls, raising indoor temperatures and causing overheating. Furthermore, these transitional areas experience both hot summers and very cold winters, and the lack of centralized heating systems further impacts people's work and daily lives. To improve the living environment, enhance the quality of life, and increase indoor comfort, building exterior walls need to possess certain thermal insulation properties and measures.

[0003] Exterior wall insulation and decorative panels are integrated insulation and decoration materials used on the exterior walls of buildings. Traditional integrated insulation and decorative panels are made by bonding a decorative layer, an insulation layer, and a backing layer in sequence, which can improve the insulation effect of the building's exterior walls. However, the disadvantage of this type of exterior wall insulation and decorative panel is its poor fire resistance, making it difficult to meet the requirements of some buildings with high fire protection requirements.

[0004] Currently, in order to improve the fire resistance of exterior wall insulation decorative panels, an additional fireproof layer is added outside the insulation layer. This can improve the fire resistance of the exterior wall insulation decorative panels. However, because the insulation layer is relatively thick and the fireproof layer is relatively thin, the fireproof layer distributed in this way cannot fully protect the insulation layer when encountering a continuous fire, resulting in a significant reduction in the fire resistance and insulation effect of the exterior wall insulation decorative panels. Utility Model Content

[0005] In order to improve the fireproof and heat insulation effect of exterior wall insulation and decorative panels, this application provides a fireproof and heat insulation panel for building exterior walls.

[0006] The fireproof and heat-insulating board for building exterior walls provided in this application adopts the following technical solution:

[0007] A fireproof and heat-insulating exterior wall panel includes a decorative layer, a first fireproof layer, a heat-insulating layer, and a reinforcing layer arranged sequentially from the outside to the inside, with adjacent layers connected. It also includes a second fireproof layer disposed between the heat-insulating layer and the reinforcing layer. The first fireproof layer has an installation groove 1, and the second fireproof layer has an installation groove 2. The installation groove 1 and the installation groove 2 are opposite to each other and form a storage cavity, and the heat-insulating layer is disposed in the storage cavity.

[0008] By adopting the above technical solution, the insulation layer is set between the first fireproof layer and the second fireproof layer. The first fireproof layer is used to enhance the fire resistance of the outer side of the fireproof insulation board of the building's exterior wall and reduce the contact between the insulation layer and the outer fire source. The second fireproof layer is used to enhance the fire resistance of the inner side of the fireproof insulation board of the building's exterior wall and reduce the contact between the insulation layer and the inner fire source. Even in the event of a large fire, the fire source is unlikely to come into contact with the insulation layer, thus protecting the structure of the insulation layer and improving the fire resistance of the fireproof insulation board of the building's exterior wall.

[0009] Preferably, the insulation layer includes an air gap layer and an insulation material layer. The air gap layer is disposed on the side close to the decorative layer, and the insulation material layer is disposed on the side close to the reinforcing layer. The air gap layer and the insulation material layer are bonded together, and the air gap layer has multiple blind holes in the horizontal direction.

[0010] By adopting the above technical solutions, the insulation material layer can improve the thermal insulation performance of the building. The air gap layer set on the outside of the insulation material layer can further enhance the thermal insulation effect. The closed air gap layer not only has a good thermal insulation effect, but also has good moisture-proof and sound insulation performance, and can effectively block heat radiation, and can better reduce heat conduction and heat convection, thereby achieving a high-efficiency and economical thermal insulation effect.

[0011] Preferably, the thickness ratio of the air gap layer to the insulation layer is (1-3):1.

[0012] By adopting the above technical solution, the use of insulation material can be reduced and costs can be lowered by setting an air gap. The thickness ratio of the air gap to the insulation material layer is (1~3):1, which can enhance the insulation effect.

[0013] Preferably, the first fireproof layer is provided with a plurality of limiting strips 1, which are integrally connected to the first fireproof layer, and the air gap layer is provided with limiting holes 1 that cooperate with the limiting strips 1; and / or the second fireproof layer is provided with a plurality of limiting strips 2, which are integrally connected to the second fireproof layer, and the insulation material layer is provided with limiting holes 2 that cooperate with the limiting strips 2.

[0014] By adopting the above technical solutions, the first limiting strip enhances the connection stability between the air gap and the first fireproof layer, and the second limiting strip enhances the connection stability between the insulation layer and the second fireproof layer, reducing the shaking of the air gap and the insulation layer.

[0015] Preferably, the second fireproof layer is provided with a plurality of protruding strips II, which are integrally connected to the second fireproof layer, and the first fireproof layer is provided with a plurality of grooves II that cooperate with the protruding strips II.

[0016] By adopting the above technical solution, the second fireproof layer and the first fireproof layer not only have vertical adhesive force, but also horizontal support force, which enhances the connection between the second fireproof layer and the first fireproof layer.

[0017] Preferably, the surface of the decorative layer is coated with an outer coating, the thickness of which is 0.6% to 2% of the thickness of the decorative layer.

[0018] By adopting the above technical solution, the outer coating can enhance the corrosion resistance of the decorative layer. The outer coating is set to be very thin, which reduces the impact on the decorative effect of the decorative layer.

[0019] Preferably, the outer coating is a fluorocarbon coating.

[0020] By adopting the above technical solutions, fluorocarbon coatings have excellent corrosion resistance and weather resistance, making them resistant to acid rain, salt spray and air pollutants. They also have good resistance to hot and cold temperatures, making them resistant to strong ultraviolet radiation and extending the service life of the decorative layer. In addition, fluorocarbon coatings can effectively improve the smoothness of the decorative layer surface and reduce surface adhesion, thus giving the building exterior wall fireproof insulation board a self-cleaning function. When it rains, rainwater can easily carry away the dust or stains on the surface, keeping the wall clean.

[0021] Preferably, the decorative layer is provided with a plurality of raised strips, which are integrally connected to the decorative layer. The first fireproof layer is provided with a plurality of grooves that cooperate with the raised strips. A gap is left between the raised strips and the grooves, and an adhesive layer is provided at the gap.

[0022] By adopting the above technical solution, the setting of the first protrusion and the first groove increases the contact area between the decorative layer and the first fireproof layer, so that the adhesive layer and the decorative layer and the first fireproof layer have not only vertical adhesion but also horizontal adhesion, thereby further improving the connection between the decorative layer and the first fireproof layer.

[0023] Preferably, the reinforcing layer is provided with a plurality of protruding strips, which are integrally connected to the reinforcing layer. The second fireproof layer is provided with a plurality of grooves that cooperate with the protruding strips, and the protruding strips can be inserted into the grooves.

[0024] By adopting the above technical solution, the protruding strip three is inserted into the groove three, which improves the connection between the reinforcement layer and the second fireproof layer and reduces the occurrence of edge warping between the reinforcement layer and the second fireproof layer during use.

[0025] Preferably, the first fireproof layer and the second fireproof layer are magnesium oxide boards.

[0026] By adopting the above technical solutions, the magnesium oxide fireproof board has good fire resistance performance, and the fire rating reaches the non-combustible A1 level. During the combustion process, it can absorb a large amount of heat energy, slow down the rise of the surrounding ambient temperature, and protect the insulation layer from damage. At the same time, the magnesium oxide board has moisture-proof properties, protecting the insulation layer from the effects of condensation droplets and humid air, and extending the life of the insulation layer. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the overall structure of an embodiment of this application.

[0028] Figure 2 This is a cross-sectional structural diagram of an embodiment of this application.

[0029] Reference numerals in the attached drawings: 1. Decorative layer; 11. Raised strip one; 2. First fireproof layer; 21. Groove one; 22. Mounting groove one; 23. Groove two; 24. Limiting strip one; 3. Insulation layer; 31. Air gap layer; 311. Blind hole; 312. Limiting hole one; 32. Insulation material layer; 321. Limiting hole two; 4. Second fireproof layer; 41. Mounting groove two; 42. Groove three; 43. Raised strip two; 44. Limiting strip two; 5. Reinforcing layer; 51. Raised strip three; 6. Adhesive layer. Detailed Implementation

[0030] The following is in conjunction with the appendix Figure 1-2 This application will be described in further detail.

[0031] This application discloses a fireproof and heat-insulating board for building exterior walls.

[0032] Reference Figure 1 A fireproof and heat-insulating exterior wall panel includes, from the outside to the inside, a decorative layer 1, a first fireproof layer 2, a heat-insulating layer 3, a second fireproof layer 4, and a reinforcing layer 5. The decorative layer 1 is used to decorate the fireproof and heat-insulating exterior wall panel, increasing the aesthetics of the building, making it more eye-catching, and enhancing the overall texture of the building. The first fireproof layer 2 is used to enhance the fire resistance of the outer side of the fireproof and heat-insulating exterior wall panel and reduce the contact between the heat-insulating layer 3 and external fire sources. The heat-insulating layer 3 is used to improve the heat insulation effect of the fireproof and heat-insulating exterior wall panel and save energy. The second fireproof layer 4 is used to enhance the fire resistance of the inner side of the fireproof and heat-insulating exterior wall panel and reduce the contact between the heat-insulating layer 3 and internal fire sources. The reinforcing layer 5 is used to strengthen the fireproof and heat-insulating exterior wall panel.

[0033] Reference Figure 1 The decorative layer 1 is an aluminum single panel with a thickness of 2 to 5 mm. In this embodiment, the aluminum single panel has a thickness of 5 mm. The aluminum single panel has good rigidity, light weight, high strength, convenient and quick installation, and good processability. It can be processed into various complex geometric shapes such as flat, curved and spherical surfaces, which enhances the aesthetics of the building.

[0034] Reference Figure 1 In order to improve the corrosion resistance of the decorative layer 1, an outer coating is also provided on the surface of the decorative layer 1. The outer coating is a fluorocarbon coating with a thickness of 30-40 μm. In the embodiment of this application, the thickness of the fluorocarbon coating is 40 μm. The fluorocarbon coating has excellent corrosion resistance and weather resistance, which improves the service life of the decorative layer 1.

[0035] Reference Figure 1 The first fireproof layer 2 is a magnesium oxide board with a thickness of 3 to 20 mm. In this embodiment, the thickness of the magnesium oxide board is 15 mm. The first fireproof layer 2 is fixedly connected to the decorative layer 1. The magnesium oxide fireproof board has good fire resistance.

[0036] Reference Figure 1 and Figure 2 In order to firmly connect the decorative layer 1 to the first fireproof layer 2, an adhesive layer 6 is provided between the decorative layer 1 and the first fireproof layer 2. The adhesive layer 6 is a polyurethane adhesive with a thickness of 0.5 to 1 mm. In the embodiment of this application, the thickness of the polyurethane adhesive is 1 mm. The polyurethane adhesive has excellent shear strength and impact resistance, which facilitates the bonding of substrates with different coefficients of thermal expansion. It forms a soft-hard transition layer between the substrates, which not only has strong adhesion, but also has excellent buffering and shock absorption functions.

[0037] Reference Figure 1 To further improve the connection between the decorative layer 1 and the first fireproof layer 2, the decorative layer 1 is provided with a plurality of protrusions 11, the length of which is the same as the width of the decorative layer 1. The protrusions 11 are integrally connected with the decorative layer 1. The first fireproof layer 2 is provided with a plurality of grooves 21 that cooperate with the protrusions 11. A gap is left between the protrusions 11 and the grooves 21. The adhesive layer 6 is provided at the gap. In this embodiment, the cross section of the protrusions 11 is an isosceles trapezoid. The provision of the protrusions 11 and the grooves 21 increases the contact area of ​​the connection surface between the decorative layer 1 and the first fireproof layer 2. Moreover, the adhesive layer 6 has not only vertical adhesion to the decorative layer 1 and the first fireproof layer 2, but also horizontal adhesion, further improving the connection between the decorative layer 1 and the first fireproof layer 2.

[0038] Reference Figure 1The second fireproof layer 4 is a magnesium oxide board, and the shape of the second fireproof layer 4 is a U-shaped board. The opening of the second fireproof layer 4 is far away from the reinforcing layer 5. The thickness of the second fireproof layer 4 is 3-20mm. In this embodiment, the thickness of the magnesium oxide board is 15mm. The second fireproof layer 4 is bonded to the first fireproof layer 2. The first fireproof layer 2 has an installation groove 22, making the shape of the first fireproof layer 2 a U-shaped board. The opening of the first fireproof layer 2 is far away from the decorative layer 1. The second fireproof layer 4 has an installation groove 41, making the shape of the second fireproof layer 4 a U-shaped board. The opening of the second fireproof layer 4 is far away from the reinforcing layer 5. The installation groove 22 and the installation groove 41 are opposite to each other. The installation groove 22 and the installation groove 41 have the same cross-sectional size, and the installation groove 22 and the installation groove 41 are connected to form a storage cavity. The insulation layer 3 is disposed in the storage cavity.

[0039] Reference Figure 1 To further improve the connection between the second fireproof layer 4 and the first fireproof layer 2, the second fireproof layer 4 is provided with a plurality of protruding strips 43. The length of the protruding strips 43 is the same as the width of the second fireproof layer 4. The protruding strips 43 are integrally connected with the second fireproof layer 4. The first fireproof layer 2 is provided with a plurality of grooves 23 that cooperate with the protruding strips 43. The protruding strips 43 can be inserted into the grooves 23. In this embodiment, the cross-section of the protruding strips 43 is rectangular. The protruding strips 43 are inserted into the grooves 23 to improve the connection between the second fireproof layer 4 and the first fireproof layer 2.

[0040] Reference Figure 1 The thickness of the insulation layer 3 is 30-80mm. In this embodiment, the thickness of the insulation layer 3 is 60mm. The insulation layer 3 includes an air gap layer 31 and an insulation material layer 32. The air gap layer 31 is close to the decorative layer 1, and the insulation material layer 32 is close to the reinforcing layer 5. The thickness ratio of the air gap layer 31 to the insulation material layer 32 is (1-3):1. In this embodiment, the thickness of the air gap layer 31 is 40mm. The air gap layer 31 has a heat preservation function. The insulation material layer 32 is a polyurethane board. In this embodiment, the thickness of the insulation material layer 32 is 20mm. Since the thermal conductivity of the foaming agent used in polyurethane is lower than that of air, the polyurethane board has high-efficiency heat preservation.

[0041] Reference Figure 2Multiple blind holes 311 are horizontally formed inside the air gap 31. The blind holes 311 are located in the middle of the width direction of the air gap 31. The length of the blind holes 311 accounts for 85% to 95% of the width of the air gap 31. In this embodiment, the length of the blind holes 311 accounts for 88% of the width of the air gap 31. In this embodiment, the blind holes 311 are arranged in two rows in the thickness direction and are evenly spaced in the height direction. The closed air gap 31 not only has a good heat preservation effect, but also has a good moisture-proof performance and can effectively block heat radiation. It can better reduce heat conduction and heat convection, thereby achieving a high-efficiency and economical heat preservation effect.

[0042] Reference Figure 1 To further improve the connection between the air gap 31 and the first fireproof layer 2, the first fireproof layer 2 is provided with a plurality of limiting strips 24. The length of the limiting strips 24 is the same as the width of the first fireproof layer 2. The limiting strips 24 are integrally connected with the first fireproof layer 2. The air gap 31 is provided with limiting holes 312 that cooperate with the limiting strips 24. In this embodiment, two limiting strips 24 are provided. The two limiting strips 24 are respectively provided on the inner side of the top plate and the bottom plate of the first fireproof layer 2 to further improve the connection between the air gap 31 and the first fireproof layer 2 and reduce the shaking of the air gap 31.

[0043] Reference Figure 1 To further improve the connection between the insulation layer 32 and the second fireproof layer 4, multiple limiting strips 44 are provided on the second fireproof layer 4. The length of the limiting strips 44 is the same as the width of the second fireproof layer 4. The limiting strips 44 are integrally connected with the second fireproof layer 4. The insulation layer 32 is provided with limiting holes 321 that cooperate with the limiting strips 44. In this embodiment, two limiting strips 44 are provided. The two limiting strips 44 are respectively provided on the inner side of the top plate and the bottom plate of the second fireproof layer 4 to further improve the connection between the insulation layer 32 and the second fireproof layer 4 and reduce the shaking of the insulation layer 32.

[0044] Reference Figure 1 The reinforcing layer 5 is a carbon fiber board with a thickness of 5 to 15 mm. In this embodiment, the thickness of the carbon fiber board is 10 mm. The carbon fiber board is fixedly connected to the second fireproof layer 4. The carbon fiber board has high strength, which makes it easier to improve the strength of the fireproof insulation board of the building exterior wall.

[0045] Reference Figure 1To further improve the connection between the reinforcing layer 5 and the second fireproof layer 4, the reinforcing layer 5 is provided with a plurality of protruding strips 51, which are integrally connected to the reinforcing layer 5. The second fireproof layer 4 is provided with a plurality of grooves 42 that cooperate with the protruding strips 51. The protruding strips 51 can be inserted into the grooves 42. In this embodiment, the cross section of the protruding strips 51 is an isosceles trapezoid. The height of the side of the protruding strips 51 near the decorative layer 1 is greater than the height of the side near the reinforcing layer 5. The protruding strips 51 are inserted into the grooves 42, thereby improving the connection between the reinforcing layer 5 and the second fireproof layer 4.

[0046] The implementation principle of a fireproof insulation board for building exterior walls according to an embodiment of this application is as follows: the insulation layer 3 is disposed between the first fireproof layer 2 and the second fireproof layer 4. The first fireproof layer 2 is used to enhance the fire resistance of the outer side of the fireproof insulation board and reduce the contact between the insulation layer 3 and the outer fire source. The second fireproof layer 4 is used to enhance the fire resistance of the inner side of the fireproof insulation board and reduce the contact between the insulation layer 3 and the inner fire source. Even in the event of a large fire, the fire source is unlikely to come into contact with the insulation layer 3, thus protecting the structure of the insulation layer 3 and improving the fire resistance of the fireproof insulation board. Through the air gap layer 31 and the insulation material layer 32 disposed in the insulation layer 3, heat conduction and heat convection can be reduced, further enhancing the insulation effect.

[0047] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A fireproof and heat-insulating board for building exterior walls, comprising a decorative layer (1), a first fireproof layer (2), a heat-insulating layer (3), and a reinforcing layer (5) arranged sequentially from the outside to the inside, with adjacent layers connected, characterized in that, It also includes a second fireproof layer (4), which is disposed between the insulation layer (3) and the reinforcement layer (5). The first fireproof layer (2) has an installation groove (22), and the second fireproof layer (4) has an installation groove (41). The installation groove (22) and the installation groove (41) are opposite to each other and form a storage cavity. The insulation layer (3) is disposed in the storage cavity.

2. The fireproof and heat-insulating board for building exterior walls according to claim 1, characterized in that, The insulation layer (3) includes an air gap layer (31) and an insulation material layer (32). The air gap layer (31) is disposed on the side close to the decorative layer (1), and the insulation material layer (32) is disposed on the side close to the reinforcing layer (5). The air gap layer (31) and the insulation material layer (32) are bonded together. The air gap layer (31) has multiple blind holes (311) in the horizontal direction inside.

3. The fireproof and heat-insulating board for building exterior walls according to claim 2, characterized in that, The thickness ratio of the air gap layer (31) to the insulation layer (32) is (1-3):

1.

4. The fireproof and heat-insulating board for building exterior walls according to claim 3, characterized in that, The first fireproof layer (2) is provided with multiple limiting strips (24), which are integrally connected to the first fireproof layer (2), and the air gap layer (31) is provided with limiting holes (312) that cooperate with the limiting strips (24); and / or the second fireproof layer (4) is provided with multiple limiting strips (44), which are integrally connected to the second fireproof layer (4), and the insulation layer (32) is provided with limiting holes (321) that cooperate with the limiting strips (44).

5. The fireproof and heat-insulating board for building exterior walls according to claim 1, characterized in that, The second fireproof layer (4) is provided with a plurality of protruding strips (43), which are integrally connected to the second fireproof layer (4). The first fireproof layer (2) is provided with a plurality of grooves (23) that cooperate with the protruding strips (43).

6. The fireproof and heat-insulating board for building exterior walls according to claim 1, characterized in that, The decorative layer (1) is coated with an outer coating, the thickness of which is 0.6% to 2% of the thickness of the decorative layer (1).

7. A fireproof and heat-insulating board for building exterior walls according to claim 6, characterized in that, The outer coating is a fluorocarbon coating.

8. The fireproof and heat-insulating board for building exterior walls according to claim 1, characterized in that, The decorative layer (1) is provided with a plurality of protrusions (11), the protrusions (11) are integrally connected with the decorative layer (1), the first fireproof layer (2) is provided with a plurality of grooves (21) that cooperate with the protrusions (11), a gap is left between the protrusions (11) and the grooves (21), and an adhesive layer (6) is provided at the gap.

9. A fireproof and heat-insulating board for building exterior walls according to claim 1, characterized in that, The reinforcing layer (5) is provided with a plurality of protruding strips (51), which are integrally connected to the reinforcing layer (5). The second fireproof layer (4) is provided with a plurality of grooves (42) that cooperate with the protruding strips (51), and the protruding strips (51) can be inserted into the grooves (42).

10. A fireproof and heat-insulating board for building exterior walls according to claim 1, characterized in that, The first fireproof layer (2) and the second fireproof layer (4) are magnesium oxide boards.

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