Thermal insulation layer structure in outer wall of building

Abstract

The utility model relates to the technical field of building heat preservation, in particular to an inner heat preservation layer structure of a building outer wall. The heat conduction layer, the cement mortar layer, the heat preservation layer and the interior wall coating are laid along the wall face. The wall surface comprises a concrete wall surface and a base layer wall surface; the heat conduction layers are laid along the inner sides of the wall surfaces, two overlapped heat conduction layers are laid on the base layer wall surface, and a single heat conduction layer is laid on the concrete wall surface; the heat conduction layer is a bendable flexible metal sheet layer, and a plurality of through holes are uniformly formed in the heat conduction layer; the heat conduction layer is completely covered with the cement mortar layer so that the heat conduction layer and the wall face can form a whole; construction is conducted on one side of the cement mortar layer so that the heat preservation layer can be firmly bonded, and interior wall paint is coated after the heat preservation layer is completely cured and dried. According to the utility model, heat of the structural heat bridge is uniformly dispersed through the arranged heat conduction layer, so that the temperature of each part is relatively uniform, and the phenomena of hollowing and cracking caused by condensation and thermal expansion and cold contraction are reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of building thermal insulation, in particular to a thermal insulation layer structure inside an outer wall of a building. Background Art

[0002] The internal and external insulation of the wall is divided according to the position of the insulation layer in the composite insulation structure. It can be divided into internal insulation (insulation layer on the indoor side), external insulation (insulation layer on the outdoor side), and sandwich insulation (insulation layer sandwiched in the middle). From the perspective of insulation and energy saving, external insulation has many advantages. Therefore, both domestic and foreign countries strongly advocate the development of external insulation enclosure structures. However, internal insulation is technically simpler, easy to construct (no scaffolding is required), does not require high verticality of the building's exterior wall, has the advantages of fast construction progress and relatively low cost, and is often used in engineering.

[0003] However, due to the existence of structural thermal bridges, the internal insulation structure of the exterior wall is prone to local condensation, which can cause mold and cracking on the wall. At the same time, since the exterior wall is not insulated, it is affected by the large temperature difference between day and night, and the thermal expansion and contraction phenomenon is obvious. Under the repeated stress, the internal insulation system is always in an unstable state, which is prone to hollowing and cracking. Utility Model Content

[0004] The utility model aims to solve the problems existing in the background technology and proposes a thermal insulation layer structure for the exterior wall of a building. The heat of the structural thermal bridge is evenly dispersed through the provided heat-conducting layer, so that the temperature of each part is relatively uniform, and the condensation phenomenon and the hollowing and cracking phenomena caused by thermal expansion and contraction are reduced.

[0005] The technical solution of the utility model is a thermal insulation layer structure of an exterior wall of a building, comprising a heat-conducting layer, a cement mortar layer, a thermal insulation layer and an interior wall coating laid along the wall surface;

[0006] The wall surface includes a concrete wall surface and a base wall surface; the heat-conducting layer is laid along the inner side of the wall surface, wherein two layers of superimposed heat-conducting layers are laid on the base wall surface, and a single layer of heat-conducting layer is laid on the concrete wall surface;

[0007] The heat-conducting layer is a bendable flexible metal sheet layer, and a plurality of through holes are evenly provided on the heat-conducting layer;

[0008] Use cement mortar layer to completely cover the thermal conductive layer to form an integral whole with the wall surface;

[0009] Construction is carried out on one side of the cement mortar layer to ensure that the insulation layer is firmly bonded. After the insulation layer is completely cured and dry, apply interior wall paint.

[0010] Preferably, the heat-conducting layer is formed by combining and splicing a plurality of single heat-conducting sheets, and the heat-conducting sheets are rectangular sheet structures.

[0011] Preferably, a layer of thermal conductive sheet is separately laid on the thermal conductive layer laid on the base wall surface and the thermal conductive layer laid on the concrete wall surface to connect the two parts of the thermal conductive layer.

[0012] Preferably, the through holes formed on the heat conducting layer are in the shape of a circle, a strip or a rectangle, or a combination thereof.

[0013] Preferably, the area of ​​the through holes on the heat-conducting layer accounts for no less than 75% of the area of ​​the entire heat-conducting layer.

[0014] Preferably, the cement mortar layer is rubber-modified cement mortar, in which the added rubber particles are 15%.

[0015] Preferably, the total thickness of the insulation layer is not less than 20 mm.

[0016] Preferably, waterproof mortar or foamed polyurethane is applied to the outside of the wall and the exterior wall finish is pasted.

[0017] Compared with the prior art, the utility model has the following beneficial technical effects:

[0018] 1. The utility model specifically sets the heat-conducting layer, sets the heat-conducting layers superimposed on both sides on the base wall, and sets the single-layer heat-conducting layer on the concrete wall. For the heat-conducting layers of the same material, the thicker the thickness, the greater the thermal resistance. Therefore, the heat of the concrete wall that absorbs heat faster can be transferred to the base wall faster, so that the temperature of each part of the wall is relatively uniform, reducing condensation and hollowing and cracking caused by thermal expansion and contraction.

[0019] 2. The thermal conductive layer is composed of multiple single thermal conductive sheets with a rectangular sheet structure. During the construction process, workers can better apply the thermal conductive layer to the entire wall surface, and for the edges or corners, the thermal conductive sheets can be conveniently cut into specific shapes, so that the thermal conductive layer can be completely covered on the wall surface. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the method of the thermal insulation layer inside the exterior wall in the prior art;

[0021] Figure 2 This is a schematic diagram of the insulation layer structure at the improved structural thermal bridge of the utility model;

[0022] Figure 3 It is a schematic diagram of the structure of the heat-conducting layer in the utility model;

[0023] Figure 4 It is a structural schematic diagram of the heat-conducting layer at the connection between the concrete wall surface and the base wall surface in the utility model.

[0024] Figure numerals: 1, wall surface; 11, concrete wall surface; 12, base wall surface; 2, thermal conductive layer; 21, through hole; 3, cement mortar layer; 4, thermal insulation layer; 5, interior wall paint. DETAILED DESCRIPTION

[0025] Example 1

[0026] like Figure 1 As shown, it is a schematic diagram of the internal insulation method of the exterior wall in the prior art. The exterior wall finish is laid on the outside of the wall, and the inorganic insulation material is laid on the inside using polymer interface mortar, and finally the paint is brushed on the inner side.

[0027] like Figure 2 As shown, the utility model proposes a building exterior wall internal insulation layer structure, comprising a heat-conducting layer 2, a cement mortar layer 3, a thermal insulation layer 4 and an interior wall coating 5 laid along a wall surface 1;

[0028] Among them, the part where the wall 1 forms a structural thermal bridge is divided into a concrete wall 11 and a base wall 12; the thermal conductivity of the concrete wall 11 is much higher than that of the base wall 12 made of bricks; in this embodiment, two layers of superimposed heat-conducting layers 2 are used for laying at the base wall 12, and a single layer of heat-conducting layer 2 is used for laying at the concrete wall 11; and at the heat-conducting layer 2 laid at the base wall 12 and the heat-conducting layer 2 laid at the concrete wall 11, the heat-conducting sheet is bent into an L shape, and a layer of heat-conducting sheet is laid separately to connect the two parts of the heat-conducting layer 2;

[0029] Then use cement mortar layer 3 to completely cover thermal conductive layer 2 to form a whole with wall 1; construct on one side of cement mortar layer 3 to make thermal insulation layer 4 firmly bonded, and after thermal insulation layer 4 is completely cured and dried, apply interior wall paint 5, the total thickness of thermal insulation layer 4 is not less than 20mm, and waterproof mortar or foamed polyurethane is applied to the outside of wall 1 and the exterior wall finish is pasted.

[0030] In this embodiment, due to the targeted setting of the thermal conductive layer, a thermal conductive layer 2 stacked on both sides is set on the base wall 12, and a single-layer thermal conductive layer 2 is set on the concrete wall 11. For the thermal conductive layers of the same material, the thicker the thickness, the greater the thermal resistivity. Therefore, the heat of the concrete wall 11 that absorbs heat faster can be transferred to the base wall 12 faster, so that the temperature of each part of the wall 1 is relatively uniform, reducing condensation and hollowing and cracking caused by thermal expansion and contraction.

[0031] Example 2

[0032] The utility model proposes a thermal insulation layer structure for the exterior wall of a building. The difference from the first embodiment is that the heat-conducting layer 2 is a bendable flexible metal sheet layer, and a plurality of through holes 21 are evenly provided on the heat-conducting layer 2; the heat-conducting layer 2 is formed by combining and splicing a plurality of single heat-conducting sheets, and the heat-conducting sheets are rectangular sheet structures. The through holes 21 provided on the heat-conducting layer 2 are one or more combinations of circular, strip or rectangular. The area of ​​the through holes 21 on the heat-conducting layer 2 accounts for no less than 75% of the area of ​​the entire heat-conducting layer 2.

[0033] In this embodiment, the thermal conductive layer 2 is composed of a plurality of single thermal conductive sheets and has a rectangular sheet structure. During the construction process, workers can better apply the thermal conductive layer 2 to the entire wall 1, and for the edges or corners, the thermal conductive sheets can be conveniently cut into specific shapes, thereby completely covering the thermal conductive layer 2 on the wall.

[0034] The through holes 21 provided on the heat-conducting layer 2 enable the cement mortar layer 3 to be directly adhered to the wall through the through holes 21; and in the present embodiment, the area of ​​the through holes 21 on the heat-conducting layer 2 accounts for no less than 75% of the area of ​​the entire heat-conducting layer 2, and the larger area of ​​the heat-conducting layer 2 is the through holes 21, which does not affect the bonding performance of the cement mortar layer 3, while ensuring uniform heat conduction.

[0035] In the present embodiment, the cement mortar layer 3 is a rubber-modified cement mortar, in which 15% of rubber particles are added; the thermal insulation capacity of the modified cement mortar with added rubber particles is improved, so that the cement mortar layer 3 itself also has a certain thermal insulation capacity, thereby making the temperature of the structural thermal bridge part more uniform, reducing condensation and hollowing and cracking caused by thermal expansion and contraction.

[0036] The implementation modes of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited thereto, and various changes can be made within the knowledge scope of technicians in the relevant technical field without departing from the purpose of the present invention.

Claims

1. A thermal insulation layer structure for an exterior wall of a building, characterized in that: It comprises a heat-conducting layer (2), a cement mortar layer (3), a thermal insulation layer (4) and an interior wall coating (5) which are laid along a wall surface (1); The wall surface (1) comprises a concrete wall surface (11) and a base wall surface (12); the heat-conducting layer (2) is laid along the inner side of the wall surface (1), wherein two layers of superimposed heat-conducting layers (2) are laid on the base wall surface (12), and a single layer of heat-conducting layer (2) is laid on the concrete wall surface (11); The heat-conducting layer (2) is a bendable flexible metal sheet layer, and a plurality of through holes (21) are evenly arranged on the heat-conducting layer (2); Using a cement mortar layer (3) to completely cover the heat conducting layer (2) so that it forms an integral whole with the wall surface (1); Construction is performed on one side of the cement mortar layer (3) so that the thermal insulation layer (4) is firmly bonded, and after the thermal insulation layer (4) is completely cured and dried, an interior wall paint (5) is applied.

2. The thermal insulation layer structure of a building exterior wall according to claim 1, characterized in that: The heat-conducting layer (2) is formed by combining and splicing a plurality of single heat-conducting sheets, and the heat-conducting sheets are rectangular sheet structures.

3. A building exterior wall internal insulation layer structure according to claim 1 or 2, characterized in that: A layer of heat-conducting sheet is separately laid on the heat-conducting layer (2) laid on the base wall surface (12) and the heat-conducting layer (2) laid on the concrete wall surface (11) to connect the two parts of the heat-conducting layer (2).

4. The thermal insulation layer structure of the building exterior wall according to claim 3, characterized in that: The through holes (21) provided on the heat conducting layer (2) are in the shape of a circle, a strip or a rectangle, or a combination thereof.

5. The building exterior wall internal insulation layer structure according to claim 1, characterized in that: The area of ​​the through hole (21) on the heat-conducting layer (2) accounts for no less than 75% of the area of ​​the entire heat-conducting layer (2).

6. The building exterior wall internal insulation layer structure according to claim 1, characterized in that: The total thickness of the thermal insulation layer (4) is not less than 20 mm.

7. The building exterior wall internal insulation layer structure according to claim 1, characterized in that: The outer surface of the wall (1) is coated with waterproof mortar or foamed polyurethane and the outer wall finish is pasted.

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