Fabricated self-heat-preservation wallboard

Abstract

The utility model relates to the technical field of wallboards, in particular to an assembly type self-heat-preservation wallboard which comprises a protection outer layer used for providing a protection effect, a concrete structure inner layer used for structural supporting and a core heat preservation layer located between the protection outer layer and the concrete structure inner layer. According to the utility model, the core thermal insulation layer, the protective outer layer and the concrete structure inner layer are separated by the broken bridge thermal insulation piece, so that a heat conduction path between the core thermal insulation layer and the protective outer layer and the concrete structure inner layer can be directly cut off; heat transfer through the edges and the splicing positions can be reduced, the overall heat insulation effect is enhanced, the heat bridge effect is further reduced, the heat preservation effect is improved, and the service life of the wall is prolonged.

Description

Technical Field

[0001] This application relates to the technical field of wall panels, and in particular to a prefabricated self-insulating wall panel. Background Art

[0002] Prefabricated wall panels are prefabricated in factories and directly assembled on site, which greatly shortens the construction period, reduces the labor and time costs of on-site operations, and self-insulating wall panels are usually made of materials with high thermal resistance performance, such as aerated concrete, foam concrete, composite materials, etc. Its heat insulation performance comes from the material itself and does not require additional insulation layers. The self-insulating wall panel has integrated the insulation function during the production process, so the construction process can be simplified and the cost can be reduced.

[0003] Although the wall panel itself is provided with an insulation layer inside and has heat insulation performance, the materials between the insulation layer and other structures inside the wall are different, and the materials used for the outer wall of the wall panel and the surrounding structures are also different. Different materials have different heat conduction rates, and heat is easily transferred quickly at the junction, forming a heat bridge phenomenon. When heat is transferred through the heat bridge part, the overall heat insulation performance is reduced, and uneven heating and cooling are likely to occur at the heat bridge, which may cause adverse phenomena such as mildew in local structures. Utility Model Content

[0004] In order to reduce the heat bridge phenomenon, this application provides a prefabricated self-insulating wall panel.

[0005] The above technical purpose of this application is achieved through the following technical solutions:

[0006] A prefabricated self-insulating wall panel, comprising:

[0007] A protective outer layer for providing a protective effect;

[0008] A concrete structure inner layer for structural support;

[0009] A core insulation layer located between the protective outer layer and the concrete structure inner layer for reducing heat transfer;

[0010] A heat bridge insulation member provided between the protective outer layer and the concrete structure inner layer for preventing heat transfer. The heat bridge insulation member includes a heat insulation strip embedded inside the side wall of the core insulation layer and heat insulation adhesive layers provided on both sides of the core insulation layer. The heat insulation adhesive layers are respectively adhered to the protective outer layer and the concrete structure inner layer.

[0011] By adopting the above technical solutions, while effectively insulating and keeping warm through the core insulation layer, it can effectively block the heat transfer through the joints of the wall panel, reduce the generation of heat bridge phenomenon, thereby improving the heat insulation effect of the wall and increasing the service life of the wall.

[0012] Optionally, the core insulation layer includes a rock wool insulation layer, a thermal insulation core layer connected to the rock wool insulation layer, and an aluminum foil reflective layer connected to the thermal insulation core layer.

[0013] By adopting the above technical solution, the heat insulation effect is improved through the combination of different materials.

[0014] Optionally, an aerogel thermal insulation layer is provided inside the thermal insulation core layer.

[0015] By adopting the above technical solution, it can be used as an auxiliary thermal insulation material in the core insulation layer to further improve the thermal insulation performance.

[0016] Optionally, the protective outer layer includes an outer surface protective coating and a fiber reinforced layer.

[0017] By adopting the above technical solution, it can resist the erosion of external chemical substances, maintain good performance in harsh environments, is not easily weathered, and extends the service life of the wall.

[0018] Optionally, the concrete structure inner layer includes a mortar crack resistant layer and a main foam concrete layer connected to the mortar crack resistant layer.

[0019] By adopting the above technical solution, while reducing the self - weight of the wall, it can provide a certain supporting force to the wall, making its structural strength higher.

[0020] Optionally, a fiber mesh layer is provided on the side of the mortar crack resistant layer away from the main foam concrete layer.

[0021] By adopting the above technical solution, the generation of cracks is effectively inhibited, and the overall stability and durability of the wallboard are improved.

[0022] Optionally, dovetail tenons are provided on both sides of the core insulation layer, and dovetail mortises corresponding to the dovetail tenons are provided on both the protective outer layer and the concrete structure inner layer.

[0023] By adopting the above technical solution, the mechanical bite between the protective outer layer and the concrete structure inner layer and the core insulation layer is increased, and the connection stability is improved.

[0024] Optionally, the heat insulation strip is made of a material with a low thermal conductivity.

[0025] 1. By adopting the above technical solution, heat is isolated and the transfer of heat is blocked.

[0026] 2. The core insulation layer is separated from the protective outer layer and the inner concrete structure layer by the broken bridge heat insulation component, which can directly cut off the heat conduction path between these two materials, reduce the heat transfer through the edges and joints, enhance the overall heat insulation effect, further reduce the thermal bridge effect, improve the heat insulation effect and the service life of the wall body;

[0027] 3. By setting the cooperation of the dovetail groove and the dovetail mortise, the bite degree between the protective outer layer and the inner concrete structure layer and the core insulation layer is improved, making the connection stability better. Description of the Drawings

[0028] Figure 1 is the schematic diagram of the explosion structure of the wall panel provided by the present application;

[0029] Figure 2 is the schematic sectional view of the wall panel provided by the present application;

[0030] Figure 3 is the sectional structure diagram of the protective outer layer provided by the present application;

[0031] Figure 4 is the schematic sectional structure diagram of the core insulation layer provided by the present application;

[0032] Figure 5 is the schematic sectional structure diagram of the inner concrete structure layer provided by the present application.

[0033] Description of the reference numerals: 1, protective outer layer; 11, protective coating; 12, fiber reinforced layer; 2, inner concrete structure layer; 21, mortar crack resistant layer; 22, main foamed concrete layer; 23, fiber grid layer; 3, core insulation layer; 31, rock wool insulation layer; 32, insulation core layer; 33, aluminum foil reflective layer; 34, aerogel thermal insulation layer; 4, broken bridge heat insulation component; 41, heat insulation strip; 42, heat insulation adhesive layer; 5, dovetail mortise; 6, dovetail groove. Detailed Description of the Embodiments

[0034] The following further describes the present application in detail with reference to the drawings.

[0035] Such as Figures 1-5As shown in the figure, an embodiment of the present application discloses a prefabricated self-insulating wall panel, which successively includes a protective outer layer 1, a core insulation layer 3, and a concrete structure inner layer 2 from outside to inside. The protective outer layer 1 is used to provide a protective effect, the concrete structure inner layer 2 is used for structural support, and the core insulation layer 3 is located between the protective outer layer 1 and the concrete structure inner layer 2 and is used to reduce heat transfer. Since the materials of the protective outer layer 1, the concrete structure inner layer 2, and the core insulation layer 3 are different, the core insulation layer 3 has a certain heat insulation effect, so its thermal conductivity is relatively low, while the thermal conductivities of the protective outer layer 1 and the concrete structure inner layer 2 are relatively high. Therefore, when heat is transferred to the contact surface of the core insulation layer 3, due to the change in thermal conductivity, heat is easily concentrated and conducted here, forming a heat bridge phenomenon. Moreover, due to the existence of gaps at the joints between the wall panels, a heat bridge phenomenon is also likely to occur. Therefore, a heat insulation break member 4 is further included. The heat insulation break member 4 is arranged between the protective outer layer 1 and the concrete structure inner layer 2 and is used to prevent heat transfer. The heat insulation break member 4 includes a heat insulation strip 41 embedded inside the side wall of the core insulation layer 3 and heat insulation adhesive layers 42 arranged on both sides of the core insulation layer 3. The heat insulation adhesive layers 42 are respectively bonded to the protective outer layer 1 and the concrete structure inner layer 2.

[0036] Specifically, the heat insulation strip 41 is made of a material with a low thermal conductivity, such as special engineering plastics, etc. The heat insulation strip 41 is arranged on the outer walls around the core insulation layer 3, that is, the upper, lower, left, and right four sides of the wall panel. These parts are positions where heat is easily conducted during the combined installation of the wall panels. By means of the heat insulation strip 41, the heat transfer at the splicing joints of the wall panels is reduced. Moreover, the heat insulation strip 41 is embedded in the inner wall of the core insulation layer 3 and is flush with the side wall of the core insulation layer 3, which can make the appearance of the wall panel more neat and beautiful and also avoid being collided or damaged during subsequent installation and other processes. The heat insulation adhesive layer 42 can adopt a nano heat insulation adhesive or a high-performance silicone sealant, etc. While bonding to the concrete structure inner layer 2 and the protective outer layer, it can conduct heat insulation and form a heat insulation barrier to reduce the generation of the heat bridge effect.

[0037] Furthermore, as Figure 4 shown, the core insulation layer 3 includes a rock wool insulation layer 31, a thermal insulation core layer 32 connected to the rock wool insulation layer 31, and an aluminum foil reflective layer 33 connected to the thermal insulation core layer 32. The rock wool insulation effectively prevents heat from being transferred by conduction. The thermal insulation core layer 32 can be made of materials such as polyurethane foam with relatively low thermal conductivity and high heat insulation performance. The aluminum foil reflective layer 33 can reflect the external and internal thermal radiation back, further enhancing the heat insulation effect. The core insulation layer 3 is located at the center of the wall, which can minimize heat conduction and play a major heat insulation function.

[0038] Furthermore, as Figure 4As shown, an aerogel thermal insulation layer 34 is provided inside the thermal insulation core layer 32. Aerogel has an extremely low thermal conductivity and can be used as an auxiliary thermal insulation material in the core thermal insulation layer 3 to further improve the thermal insulation performance.

[0039] Furthermore, as Figure 3 shown, the protective outer layer 1 includes an outer surface protective coating 11 and a fiber reinforcement layer 12. The protective coating 11 can be a coating with weather resistance and corrosion resistance, such as a polyurea coating or a special resin coating, to protect against erosion by ultraviolet rays, chemical substances, dust, etc., and improve the service life of the wall. The fiber reinforcement layer 12 can be composed of reinforcing materials such as glass fiber, carbon fiber, or aramid fiber and a resin matrix to provide high strength and high stiffness and be able to withstand external loads and stresses.

[0040] Furthermore, as Figure 5 shown, the inner concrete structure layer 2 includes a mortar crack-resistant layer 21 and a main foam concrete layer 22 connected to the mortar crack-resistant layer 21. A fiber grid layer 23 is provided on the side of the mortar crack-resistant layer 21 away from the main foam concrete layer 22. The main foam concrete layer 22 is made by mixing cement, water, foaming agent, etc., and contains a large number of uniformly distributed closed pores, providing light weight and thermal insulation performance, and can significantly reduce the self-weight of the wall, reduce the load on the building foundation and structure, thereby reducing construction costs. A fiber grid layer 23 is provided in the anti-crack mortar layer to effectively inhibit crack generation.

[0041] Furthermore, as Figure 1 shown, dovetail tenons 5 are provided on both sides of the core thermal insulation layer 3. Dovetail mortises 6 corresponding to the dovetail tenons 5 are provided on both the protective outer layer 1 and the inner concrete structure layer 2. By pressing the dovetail tenons 5 and the dovetail mortises 6 together, the degree of engagement between the protective outer layer 1 and the inner concrete structure layer 2 and the core thermal insulation layer 3 is improved, making the connection more stable. The dovetail joint structure can usually be accurately fabricated during prefabrication to ensure accurate splicing between layers.

[0042] This specific embodiment is only an explanation of the present application and is not a limitation of the present application. Those skilled in the art can make modifications to this embodiment without creative contributions according to needs after reading this specification, but as long as it is within the scope of the claims of the present application, it is protected by the patent law.

Claims

1. An assembled self-insulating wall panel, characterized in that: Comprising; A protective outer layer (1) for providing a protective effect; An inner concrete structure layer (2) for providing structural support; A core insulation layer (3) located between the protective outer layer (1) and the inner concrete structure layer (2) for reducing heat transfer; A thermal break insulation member (4) provided between the protective outer layer (1) and the inner concrete structure layer (2) for preventing heat transfer. The thermal break insulation member (4) includes a heat insulation strip (41) embedded in the side wall of the core insulation layer (3) and heat insulation adhesive layers (42) provided on both sides of the core insulation layer (3), and the heat insulation adhesive layers (42) are adhesively connected to the protective outer layer (1) and the inner concrete structure layer (2) respectively.

2. The prefabricated self-insulating wall panel according to claim 1, wherein: The core insulation layer (3) includes a rock wool insulation layer (31), a heat preservation core layer (32) connected to the rock wool insulation layer (31), and an aluminum foil reflective layer (33) connected to the heat preservation core layer (32).

3. The prefabricated self-insulating wall panel according to claim 2, characterized in that: An aerogel thermal insulation layer (34) is provided inside the heat preservation core layer (32).

4. The prefabricated self-insulating wall panel according to claim 1, wherein: The protective outer layer (1) includes an outer surface protective coating (11) and a fiber reinforced layer (12).

5. The prefabricated self-insulating wall panel according to claim 1, characterized in that: The inner concrete structure layer (2) includes a mortar anti-cracking layer (21) and a main body foam concrete layer (22) connected to the mortar anti-cracking layer (21).

6. The prefabricated self-insulating wall panel according to claim 5, wherein: A fiber grid layer (23) is provided on the side of the mortar anti-cracking layer (21) away from the main body foam concrete layer (22).

7. The prefabricated self-insulating wall panel according to claim 1, characterized in that: Dovetail tenons (5) are provided on both sides of the core insulation layer (3), and dovetail grooves (6) corresponding to the dovetail tenons (5) are formed on both the protective outer layer (1) and the inner concrete structure layer (2).

8. The prefabricated self-insulating wall panel according to claim 1, characterized in that: The heat insulation strip (41) is made of a material with a low thermal conductivity.

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