Outer wall external thermal insulation system

Abstract

The invention discloses an exterior wall external thermal insulation system which comprises a prefabricated concrete sandwich thermal insulation external wall panel system, a prefabricated concrete reverse beating thermal insulation external wall panel system and a cast-in-place concrete disassembly-free thermal insulation formwork external wall system, and aerogel thermal insulation coating is coated in each system so as to improve thermal insulation performance and fireproof performance. According to the system, through reasonable design and material selection, the heat preservation requirement of an ultra-low energy consumption building is met, and the system has good thermal performance and structural stability.

Description

Technical Field

[0001] The invention belongs to the technical field of building engineering, and in particular relates to an external wall thermal insulation system. Background Art

[0002] Traditional exterior wall insulation systems mostly use a single insulation material, such as polystyrene boards and rock wool, which have problems such as poor insulation effect, poor fire resistance, and complex construction. For example, polystyrene boards are easy to burn, and rock wool is easy to generate dust during construction. Both require additional fixing measures during construction, which increases the difficulty and cost of construction. In addition, the traditional system's insulation treatment at the thermal bridge is not perfect, resulting in serious heat loss, affecting the overall insulation effect of the building. Summary of the invention

[0003] In order to solve the above problems, the present invention discloses an external wall thermal insulation system, and the technical solution of the present invention is as follows: An exterior wall insulation system, including a precast concrete sandwich insulation exterior wall panel system, a precast concrete reverse insulation exterior wall panel system, and a cast-in-place concrete non-disassembly insulation formwork exterior wall system, wherein the precast concrete sandwich insulation exterior wall panel system is composed of reinforced concrete and precast sandwich exterior wall panels, wherein the precast sandwich exterior wall panels are arranged between two layers of reinforced concrete, and the inner surface of the precast concrete sandwich insulation exterior wall panel system is coated with aerogel insulation coating; The precast concrete reverse-insulation exterior wall panel system includes extruded polystyrene foam (XPS), reinforced concrete or fine stone concrete, and silicon-graphene structure integrated insulation board from the inside to the outside. The inner surface of the reinforced concrete or fine stone concrete is coated with aerogel insulation coating. The reinforced concrete or fine stone concrete and the silicon-graphene structure integrated insulation board are fixed by anchoring connectors. The cast-in-place concrete non-removal insulation formwork exterior wall system includes a silicon-graphene structure integrated insulation board, reinforced concrete or fine stone concrete, the surface of the reinforced concrete or fine stone concrete away from the silicon-graphene structure integrated insulation board is coated with aerogel insulation coating, and the reinforced concrete or fine stone concrete is fixed to the silicon-graphene structure integrated insulation board by an anchoring connector.

[0004] As an improvement of the present invention, the aerogel thermal insulation coating is ZNJC aerogel, and the coating thickness of the ZNJC aerogel is 2 mm.

[0005] As an improvement of the present invention, the thickness of the reinforced concrete coated with the aerogel insulation coating in the precast concrete sandwich insulation exterior wall panel system is 55 mm, and the thickness of the reinforced concrete not coated with the aerogel insulation coating is 200 mm.

[0006] As an improvement of the present invention, the prefabricated sandwich exterior wall panel is a rigid foam polyurethane panel, and the thickness of the rigid foam polyurethane panel is 60 mm.

[0007] As an improvement of the present invention, the thickness of the silicon-graphene structure integrated insulation board in the precast concrete reverse insulation exterior wall panel system is 100 mm, the thickness of the reinforced concrete or fine stone concrete is 200 mm, and the thickness of the XPS is 20 mm.

[0008] As an improvement of the present invention, the thickness of the silicon-graphene structure integrated insulation board in the cast-in-place concrete non-disassembly insulation formwork exterior wall system is 100 mm, and the thickness of the reinforced concrete or fine stone concrete is 200 mm.

[0009] As an improvement of the present invention, the outer surface of the precast concrete sandwich insulation exterior wall panel system is also provided with an outer blade plate, which is fixed by a flat plate connector. The thickness of the outer blade plate is 55 mm, and the flat plate connector is anchored into the outer blade plate to a depth of not less than 55 mm.

[0010] As an improvement of the present invention, the anchoring connector includes a tail disc and a rod body. The diameter of the tail disc is 60 mm and the tail disc is covered with a nylon sleeve. The diameter of the rod body is 8 mm and the depth of the rod body embedded in the concrete anchoring is not less than 80 mm.

[0011] As an improvement of the present invention, the exterior wall external insulation system is sealed with fireproof insulation materials, and the fireproof insulation materials are silicon graphene insulation blocks.

[0012] The beneficial effects of the present invention are: (1) The exterior wall insulation system of the present invention adopts a combination of multiple insulation materials, such as rigid foam polyurethane board, silicon-graphene structure integrated insulation board, etc. These materials have low thermal conductivity, can effectively prevent heat transfer, and improve the insulation performance of the building. For example, the thermal conductivity of the rigid foam polyurethane board is 0.024W / (m·K), and the thermal conductivity of the silicon-graphene structure integrated insulation board is 0.054W / (m·K), which is much lower than that of traditional insulation materials, thereby significantly reducing the energy consumption of the building.

[0013] (2) The exterior wall insulation system of the present invention uses A-class fireproof insulation material silicon graphene insulation blocks for edge sealing, and A2-class silicon graphene structure integrated insulation boards. These materials have excellent fireproof properties, can effectively prevent the spread of fire, and improve the safety of buildings. For example, silicon graphene insulation blocks will not burn at high temperatures and will not produce toxic gases, providing reliable fire protection for buildings.

[0014] (3) The precast concrete sandwich insulation exterior wall panel system and the precast concrete reverse insulation exterior wall panel system use precast components, which only require simple installation and fixing during construction, reducing the complexity and time of on-site construction. At the same time, the cast-in-place concrete non-dismantling insulation formwork exterior wall system does not need to remove the formwork during construction, and concrete is poured directly on the formwork, which simplifies the construction process and improves construction efficiency and quality. In addition, the connections between the components in the system use anchor connectors, which are firm and reliable, ensuring the stability of the overall structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a structural schematic diagram of the precast concrete sandwich insulation exterior wall panel system.

[0016] Figure 2 This is a structural diagram of the precast concrete counter-insulation exterior wall panel system.

[0017] Figure 3 This is a structural diagram of the cast-in-place concrete non-removal insulation formwork exterior wall system.

[0018] List of Figure Symbols: 1. Aerogel insulation coating; 2. Reinforced concrete; 3. Prefabricated sandwich exterior wall panels; 4. Extruded polystyrene foam; 5. Silicon-graphene structure integrated insulation board; 6. Anchor connector. DETAILED DESCRIPTION

[0019] The present invention is further explained below in conjunction with the accompanying drawings and specific embodiments. It should be understood that the following specific embodiments are only used to illustrate the present invention and are not used to limit the scope of the present invention. It should be noted that the words "front", "rear", "left", "right", "upper" and "lower" used in the following description refer to directions in the accompanying drawings, and the words "inner" and "outer" refer to directions toward or away from the geometric center of a specific component, respectively.

[0020] The specific implementation of the present invention is described by the following examples, each of which is only a partial application of the present invention, and can be selected and adjusted according to different needs in actual applications. In the following, "Example 1" is used as the main example, and the other examples are compared by adjusting certain parameters.

[0021] Example 1 An exterior wall insulation system, the exterior wall insulation system is a prefabricated concrete sandwich insulation exterior wall panel system, composed of reinforced concrete 2 and prefabricated sandwich exterior wall panels 3, the prefabricated sandwich exterior wall panels 3 are arranged between two layers of reinforced concrete 2, and a rigid foam polyurethane board with a thickness of 60 mm is selected as the prefabricated sandwich exterior wall panel 3, and its thermal conductivity is 0.024 W / (m·K), which meets the relevant provisions of Class III products in "Rigid Polyurethane Foam Plastics for Building Insulation" GB / T21558.

[0022] The thickness of the reinforced concrete 2 is 55 mm and 200 mm respectively, and the inner surface of the 55 mm thick reinforced concrete 2 is coated with a 2 mm thick ZNJC aerogel insulation coating 1.

[0023] The outer surface of the precast concrete sandwich insulation exterior wall panel system is also provided with an outer blade (not shown in the figure), and the outer blade is fixed by a flat plate connector. The thickness of the outer blade is 55 mm, and the flat plate connector is anchored into the outer blade to a depth of not less than 55 mm.

[0024] The exterior wall external insulation system is sealed with fireproof insulation materials, and the fireproof insulation materials are silicon graphene insulation blocks.

[0025] The precast concrete sandwich insulation exterior wall panel system uses precast sandwich exterior wall panels, which are highly compatible with the construction method of prefabricated buildings. It is suitable for residential and commercial buildings and other projects that use prefabricated construction technology. It can improve construction efficiency, shorten construction period, and ensure the consistency of building quality.

[0026] Since rigid foam polyurethane board is used as the insulation layer in the prefabricated sandwich exterior wall panel system, it has low thermal conductivity and excellent thermal insulation performance. It is suitable for buildings with high requirements for thermal insulation performance, such as residential buildings in cold areas, energy-saving office buildings, etc., and can effectively reduce the energy consumption of buildings.

[0027] In addition, prefabricated sandwich exterior wall panels are prefabricated in factories with stricter quality control. Only simple installation is required during on-site construction, which reduces errors and quality risks in on-site construction. They are suitable for projects with strict requirements on construction quality, such as high-end residential projects, key public buildings, etc.

[0028] The calculation of the exterior wall heat transfer coefficient of the precast concrete sandwich insulation exterior wall panel system is shown in the following table:

[0029] Example 2 An external wall insulation system, the external wall insulation system is a precast concrete counter-insulation external wall panel system, the precast concrete counter-insulation external wall panel system comprises, from the inside to the outside, extruded polystyrene foam plastic 4 (XPS), reinforced concrete 2 or fine stone concrete, and a silicon-graphene structure integrated insulation board 5, the inner surface of the reinforced concrete 2 or fine stone concrete is connected with XPS, the XPS is 20 mm thick, and the thermal conductivity is 0.032 W / (m²·K), which meets the requirements of "Residential Building Energy Saving Design Standard" DGJ08-205-2015.

[0030] The silicon-graphene structure integrated insulation board 5 has a thickness of 100 mm and a thermal conductivity of 0.054 W / (m·K), which meets the requirements of the Technical Specification for Application of Silicon-graphene Insulation and Structural Integration System Q310116SK003-2019. The inner surface of the reinforced concrete 2 or fine stone concrete is coated with a 2 mm thick ZNJC aerogel insulation coating 1 with a thickness of 200 mm.

[0031] The reinforced concrete 2 or fine stone concrete is fixed to the silicon-graphene structure integrated insulation board 5 by an anchoring connector 6. The anchoring connector 6 includes a tail plate and a rod. The tail plate has a diameter of 60 mm and is covered with a nylon sleeve. The rod has a diameter of 8 mm and the rod is embedded in the concrete to an anchoring depth of not less than 80 mm.

[0032] The outer surface of the precast concrete sandwich insulation exterior wall panel system is also provided with an outer blade plate, which is fixed by a flat plate connector. The thickness of the outer blade plate is 55 mm, and the flat plate connector is anchored into the outer blade plate to a depth of not less than 55 mm.

[0033] The exterior wall external insulation system is sealed with fireproof insulation materials, and the fireproof insulation materials are silicon graphene insulation blocks.

[0034] The precast concrete counter-insulated exterior wall panel system is suitable for parts of the building that need to be insulated, such as the precast exterior wall near the outdoor corridor, which can improve the insulation performance of these parts in a targeted manner and meet the energy-saving requirements of the entire building. At the same time, the A2-level silicon-graphene structure integrated insulation board is used, which has good fire resistance and is suitable for buildings with certain requirements for fire resistance, such as hospitals, schools and other crowded places, which can improve the safety of the building to a certain extent.

[0035] Since the precast concrete counter-insulated exterior wall panel system uses precast components, the requirements for site conditions during construction are relatively low. It is suitable for projects with small construction sites and restricted construction conditions, such as construction projects in urban renewal and renovation. It can complete construction in a limited space and reduce the impact on the surrounding environment.

[0036] The calculation of the exterior wall heat transfer coefficient of the precast concrete counter-insulation exterior wall panel system is shown in the following table:

[0037] Example 3 An external wall insulation system, the external wall insulation system is a cast-in-place concrete non-disassembly insulation formwork external wall system, the cast-in-place concrete non-disassembly insulation formwork external wall system comprises a silicon-graphene structure integrated insulation board 5, reinforced concrete 2 or fine stone concrete; the silicon-graphene structure integrated insulation board 5 is 100 mm thick and has a thermal conductivity of 0.054 W / (m·K); the surface of the reinforced concrete 2 or fine stone concrete away from the silicon-graphene structure integrated insulation board 5 is coated with a 2 mm thick ZNJC aerogel insulation coating 1, and the thickness of the reinforced concrete 2 or fine stone concrete is 200 mm.

[0038] The reinforced concrete 2 or fine stone concrete is fixed to the silicon-graphene structure integrated insulation board 5 by an anchoring connector 6. The anchoring connector 6 includes a tail plate and a rod. The tail plate has a diameter of 60 mm and is covered with a nylon sleeve. The rod has a diameter of 8 mm and the rod is embedded in the concrete to an anchoring depth of not less than 80 mm.

[0039] The outer surface of the precast concrete sandwich insulation exterior wall panel system is also provided with an outer blade plate, which is fixed by a flat plate connector. The thickness of the outer blade plate is 55 mm, and the flat plate connector is anchored into the outer blade plate to a depth of not less than 55 mm.

[0040] The exterior wall external insulation system is sealed with fireproof insulation materials, and the fireproof insulation materials are silicon graphene insulation blocks.

[0041] The cast-in-place concrete non-removal insulation formwork exterior wall system is designed for non-prefabricated exterior walls and is suitable for buildings constructed with cast-in-place concrete, such as some traditional residential buildings, industrial plants, etc. It can realize the synchronous construction of the insulation layer during the cast-in-place concrete construction process, thus simplifying the construction process.

[0042] The cast-in-place concrete non-removal insulation formwork exterior wall system has high flexibility during construction and can be adjusted according to the specific design and construction requirements of the building. It is suitable for projects with high requirements for construction flexibility, such as some complex structure construction projects, and can better adapt to changes in building design.

[0043] The silicon-graphene structure integrated insulation board in the system is fixed to the cast-in-place concrete by anchor connectors, and has good bonding performance. It is suitable for buildings with high requirements on the bonding performance of insulation materials, such as high-rise buildings, large-span buildings, etc. It can ensure the firm connection between the insulation layer and the wall and improve the durability of the building.

[0044] The calculation of the exterior wall heat transfer coefficient of the cast-in-place concrete non-removal insulation formwork exterior wall system is shown in the following table:

[0045] The calculation of thermal resistance ratio of the insulation system of Examples 1 to 3 is shown in the following table:

[0046] After calculation, each embodiment meets the building insulation requirements.

[0047] It should be noted that the drawings only illustrate the technical ideas of the present invention, and the protection scope of the present invention cannot be limited by this shape. For ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present invention. These improvements and modifications all fall within the protection scope of the claims of the present invention.

Claims

1. An exterior wall insulation system, including a precast concrete sandwich insulation exterior wall panel system, a precast concrete reverse insulation exterior wall panel system, and a cast-in-place concrete non-dismantling insulation formwork exterior wall system, characterized in that: The precast concrete sandwich insulation exterior wall panel system is composed of reinforced concrete and precast sandwich exterior wall panels, the precast sandwich exterior wall panels are arranged between two layers of reinforced concrete, and the inner surface of the precast concrete sandwich insulation exterior wall panel system is coated with aerogel insulation coating; The precast concrete reverse-insulation exterior wall panel system includes extruded polystyrene foam plastic, reinforced concrete or fine stone concrete, and silicon-graphene structure integrated insulation board from the inside to the outside. The inner surface of the reinforced concrete or fine stone concrete is coated with aerogel insulation coating. The reinforced concrete or fine stone concrete is fixed to the silicon-graphene structure integrated insulation board by an anchoring connector. The cast-in-place concrete non-removal insulation formwork exterior wall system includes a silicon-graphene structure integrated insulation board, reinforced concrete or fine stone concrete, the surface of the reinforced concrete or fine stone concrete away from the silicon-graphene structure integrated insulation board is coated with aerogel insulation coating, and the reinforced concrete or fine stone concrete is fixed to the silicon-graphene structure integrated insulation board by an anchoring connector.

2. The external wall thermal insulation system according to claim 1, characterized in that: The aerogel thermal insulation coating is ZNJC aerogel, and the coating thickness of the ZNJC aerogel is 2 mm.

3. The external wall thermal insulation system according to claim 2, characterized in that: The thickness of the reinforced concrete coated with the aerogel thermal insulation coating in the precast concrete sandwich insulation exterior wall panel system is 55 mm, and the thickness of the reinforced concrete not coated with the aerogel thermal insulation coating is 200 mm.

4. The external wall thermal insulation system according to claim 3, characterized in that: The prefabricated sandwich exterior wall panel is a rigid foam polyurethane panel, and the thickness of the rigid foam polyurethane panel is 60 mm.

5. The external wall thermal insulation system according to claim 2, characterized in that: The thickness of the silicon-graphene structure integrated insulation board in the precast concrete counter-insulation exterior wall panel system is 100 mm, the thickness of the reinforced concrete or fine stone concrete is 200 mm, and the thickness of the extruded polystyrene foam plastic is 20 mm.

6. The external wall thermal insulation system according to claim 2, characterized in that: The thickness of the silicon-graphene structure integrated insulation board in the cast-in-place concrete non-disassembly insulation formwork exterior wall system is 100 mm, and the thickness of the reinforced concrete or fine stone concrete is 200 mm.

7. The external wall thermal insulation system according to claim 1, characterized in that: The outer surface of the precast concrete sandwich insulation exterior wall panel system is also provided with an outer blade plate, which is fixed by a flat plate connector. The thickness of the outer blade plate is 55 mm, and the flat plate connector is anchored into the outer blade plate to a depth of not less than 55 mm.

8. The external wall thermal insulation system according to claim 1, characterized in that: The anchoring connector includes a tail plate and a rod body. The diameter of the tail plate is 60 mm and the tail plate is covered with a nylon sleeve. The diameter of the rod body is 8 mm and the rod body is embedded in the concrete to an anchoring depth of not less than 80 mm.

9. The external wall insulation system according to any one of claims 1 to 8, characterized in that: The exterior wall external insulation system is sealed with fireproof insulation materials, and the fireproof insulation materials are silicon graphene insulation blocks.

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