Fabricated prefabricated wall for blocking heat bridge

Abstract

The utility model discloses an assembly type prefabricated wall body for blocking a heat bridge, which comprises a wall plate, the wall plate comprises an upper component and a lower component, and the lower part of the upper component and the upper part of the lower component are respectively of a three-stage step-shaped structure. The first-stage step of the upper component and the third-stage step of the lower component are mutually and tightly spliced, the third-stage step of the upper component and the first-stage step of the lower component are mutually and tightly spliced, a cavity is formed between the upper component and the second-stage step of the lower component, and a thermal insulation material block is arranged in the cavity. According to the assembly type prefabricated wall body capable of blocking the heat bridge, the heat preservation material with the low heat conductivity coefficient is added to the joint of the components, the heat bridge is effectively isolated by means of the excellent heat insulation characteristic of the heat preservation material, heat in a building is prevented from being rapidly transmitted to the outside through the heat bridge, and therefore the heat preservation performance of the building is improved; and energy loss is reduced.

Description

Technical Field

[0001] This utility model relates to the field of thermal insulation building technology, and in particular to a prefabricated wall assembly that blocks thermal bridges. Background Technology

[0002] With the increasing severity of global climate change, carbon neutrality has become a global consensus and a goal for action by various countries. As the world's largest emitter of carbon dioxide, China has proposed a "dual-carbon" strategy of peak carbon emissions and carbon neutrality. The construction industry accounts for a significant proportion of carbon emissions, making the reduction of building energy consumption and carbon emissions one of the key issues that the industry urgently needs to address.

[0003] Prefabricated construction (also known as modular construction) refers to a method of building construction where various building components (such as wall panels, floor slabs, beams, columns, and stairs) are prefabricated in a factory, then transported to the construction site for assembly. However, despite its many advantages, prefabricated construction still faces some technical challenges during construction, one of which is thermal bridging. Thermal bridging refers to the accelerated heat conduction at points in building components due to differences in the thermal conductivity of the materials, resulting in energy loss and affecting the building's thermal performance.

[0004] Therefore, how to improve the thermal insulation performance and energy conservation and emission reduction of prefabricated buildings is a technical problem that urgently needs to be solved. Summary of the Invention

[0005] To address the shortcomings of existing technologies, this utility model provides a prefabricated wall assembly that blocks thermal bridges. By adding insulation material with low thermal conductivity at the joints of components, its excellent thermal insulation properties effectively isolate the existence of thermal bridges, preventing heat from the building from being rapidly transferred to the outside through thermal bridges, thereby improving the building's thermal insulation performance and reducing energy consumption.

[0006] The present invention provides the following solutions:

[0007] This utility model provides a prefabricated assembled wall that blocks thermal bridges, including a wall panel. The wall panel includes an upper component and a lower component. The lower part of the upper component and the upper part of the lower component are three-stage stepped structures. The first stage of the upper component and the third stage of the lower component, as well as the third stage of the upper component and the first stage of the lower component, are tightly spliced ​​together. A cavity is formed between the second stage of the upper component and the lower component, and a block of thermal insulation material is placed inside the cavity.

[0008] In one alternative embodiment, the insulation material block is shaped to fill the cavity and conform to the shape of the cavity.

[0009] In an alternative embodiment, the thermal insulation material block is tightly fixed with the upper member and / or the lower member by anchor nails.

[0010] In an alternative embodiment, the upper member and the lower member are fixed by high-temperature pressing.

[0011] In an alternative embodiment, the thermal insulation material block is seamless with the inner wall of the cavity.

[0012] In an alternative embodiment, the thermal insulation material block is a polystyrene foam block or a graphite polystyrene foam block.

[0013] In an alternative embodiment, the upper member and the lower member have the same shape.

[0014] In an alternative embodiment, the thickness of the thermal insulation material block accounts for 1 / 3 to 1 / 2 of the thickness of the wallboard.

[0015] The utility model has the beneficial effects of the technical scheme, which are:

[0016] (1) The prefabricated wall body of the utility model blocks the thermal bridge by adding thermal insulation material with low thermal conductivity at the joint of the members, effectively insulates the existence of the thermal bridge, avoids the rapid transmission of heat in the building to the outdoor through the thermal bridge, and further improves the thermal insulation performance of the building and reduces energy consumption.

[0017] (2) The thermal insulation material of the prefabricated wall body of the utility model can be tightly combined with the members without gaps, and heat is difficult to transmit through the joint, thereby further blocking the thermal bridge effect.

[0018] (3) The prefabricated wall body of the utility model has a simple structure and is easy to assemble, and the upper member and the lower member can be the same, which is suitable for mass production and assembly and improves the assembly efficiency.

[0019] (4) The prefabricated wall body of the utility model can improve energy efficiency, reduce heat loss of the building, improve the thermal insulation performance of the building, reduce the heating and cooling energy consumption of the building in winter and summer, and improve the indoor temperature distribution after blocking the thermal bridge effect, thereby avoiding the uneven heating and cooling phenomenon caused by the thermal bridge and improving the comfort of living and working. The risk of condensation of moisture in the air to form mold due to the temperature difference change of the thermal bridge part can be reduced, the indoor air quality can be improved, the aging and cracking of the building structure material can be reduced, and the energy consumption can be reduced to help reduce greenhouse gas emissions and support the realization of the carbon neutralization target. BRIEF DESCRIPTION OF DRAWINGS

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present specification or the prior art, the drawings needed to be used in the embodiments will be briefly introduced as follows. Obviously, the drawings in the following description are only some embodiments of the present specification, and other drawings can be obtained by those skilled in the art without any creative effort on the basis of these drawings.

[0021] Figure 1 The structure schematic diagram of the assembled prefabricated wall body for blocking heat bridge is provided.

[0022] Figure 2 It is an anchor nail structure schematic diagram.

[0023] Figure 3 It is a thermal insulation material block structure schematic diagram.

[0024] In the figure: 1-upper component, 2-thermal insulation material block, 21-graphite particles, 3-lower component, 4-anchor nail. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the present application will be described clearly and completely in the embodiments of the present application in combination with the drawings. Obviously, the described embodiments are only some embodiments of the present application, but not all the embodiments. Based on the embodiments of the present application, all the other embodiments obtained by those skilled in the art belong to the protection scope of the embodiments of the present application.

[0026] The embodiments provide an assembled prefabricated wall body for blocking heat bridge, referring to Figure 1 , Figure 2 and Figure 3 , comprising a wallboard, the wallboard comprising an upper component 1 and a lower component 3, the upper component and the lower component being combined and fixed by high-temperature pressing.

[0027] The lower part of the upper component and the upper part of the lower component are respectively three-step structures, the first step of the upper component and the third step of the lower component, and the third step of the upper component and the first step of the lower component are tightly spliced with each other, and a cavity is formed between the second steps of the upper component and the lower component, and a thermal insulation material block 2 is arranged in the cavity. The thermal insulation material block adopts a shape that fills the cavity and is consistent with the cavity, and is tightly fixed with the upper component and / or the lower component by an anchor nail 4, and the thermal insulation material block has no gap with the inner wall of the cavity.

[0028] The thermal insulation material block can adopt a polystyrene foam block, or a graphite polystyrene foam block with added graphite particles 21.

[0029] The upper component and the lower component can have the same shape, which is suitable for batch production and assembly, and improves the assembly efficiency.

[0030] The thickness of the thermal insulation material block accounts for 1 / 3 to 1 / 2 of the thickness of the wallboard, and the volume ratio of each layer of material can be adjusted according to the actual requirements of the building (such as thermal insulation performance, load-bearing requirements, etc.), so as to optimize the energy efficiency and heat loss rate of the building.

[0031] The construction process of the prefabricated wall body for blocking thermal bridges provided in the embodiment is as follows:

[0032] (1) Component preparation: when making the prefabricated component, a space with appropriate thickness is reserved at the component joint according to the design requirements, so as to install the thermal insulation material block.

[0033] (2) Material selection: graphite polystyrene foam thermal insulation material is selected, which is a high-efficiency thermal insulation material with low thermal conductivity, good fire resistance, low water absorption and environmental protection characteristics by adding graphite particles in traditional polystyrene foam. Its excellent thermal insulation performance makes it an ideal material for solving the problem of thermal bridges.

[0034] (3) Construction splicing: place the graphite polystyrene foam thermal insulation material at the upper and lower component joints, and use anchoring nails and other fixing tools to ensure that the material is tightly combined with the component without gaps. Through the low thermal conductivity of the thermal insulation material, heat is difficult to transfer through the joint, thereby effectively blocking the thermal bridge effect.

[0035] (4) High-temperature pressing: after installation, high-temperature pressing process is adopted to ensure the tight combination between the thermal insulation material block and the component, avoiding heat conduction due to the gap between the materials.

[0036] Before the overall construction, the volume ratio of each layer of material can be adjusted according to the actual requirements of the building (such as thermal insulation performance, load-bearing requirements, etc.), so as to optimize the energy efficiency and heat loss rate of the building.

[0037] The prefabricated wall body for blocking thermal bridges provided by the utility model adds thermal insulation material with low thermal conductivity at the component joint, utilizes its excellent thermal insulation characteristics, effectively insulates the existence of thermal bridges, avoids the rapid transmission of heat in the building to the outdoor through the thermal bridges, and further improves the thermal insulation performance of the building and reduces energy consumption.

Claims

1. A fabricated prefabricated wall blocking a thermal bridge, comprising a wall panel, characterized in that: The wallboard comprises an upper component and a lower component, the lower part of the upper component and the upper part of the lower component are respectively three-step structures, the first step of the upper component and the third step of the lower component and the third step of the upper component and the first step of the lower component are tightly spliced with each other, a cavity is formed between the second steps of the upper component and the lower component, and a thermal insulation material block is arranged in the cavity.

2. The prefabricated wall of claim 1, wherein: The thermal insulation material block is in the shape of filling the cavity.

3. The prefabricated wall assembly according to claim 1, wherein: The thermal insulation material block is tightly fixed with the upper component and / or the lower component through anchor nails.

4. The prefabricated wall assembly according to claim 1, wherein: The upper component and the lower component are combined and fixed through high-temperature pressing.

5. The blocking thermal bridge assembly type prefabricated wall according to claim 1, characterized in that: The thermal insulation material block is seamless with the inner wall of the cavity.

6. The blocking thermal bridge assembly type prefabricated wall according to claim 1, characterized in that: The thermal insulation material block is polystyrene foam or graphite polystyrene foam.

7. The prefabricated wall assembly according to claim 1, wherein: The upper component and the lower component are of the same shape.

8. The prefabricated wall assembly according to claim 1, wherein: The thickness of the thermal insulation material block accounts for 1 / 3-1 / 2 of the thickness of the wallboard.

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