CN211341275U - An external thermal insulation structure for a near-zero energy consumption building - Google Patents

Abstract

The utility model relates to an external thermal insulation structure for an external wall of a building with near zero energy consumption, which comprises a base wall, and the outer surface of the base wall is sequentially provided with a leveling layer, a rock wool board and a finishing layer; A first bonding layer is fixed between the cotton boards; a calcium silicate board is arranged between the rock wool board and the facing layer, and a second bonding layer is arranged between the calcium silicate board and the facing layer The rock wool board is provided with a plurality of anchors, one end of the anchor is connected with the first adhesive layer, and the other end is connected with the calcium silicate board; the calcium silicate board is provided with a plurality of thermal insulation Bridge anchor bolts, each of which is fixed to the inside of the base wall through the calcium silicate slate rock wool board, the first adhesive layer and the leveling layer. The utility model has a reasonable design, ensures the requirement of near-zero energy consumption building energy consumption limit, enhances the connection performance between the thermal insulation system and the wall, is safe, reliable and has high fire performance.

Description

An external thermal insulation structure for a near-zero energy consumption building

technical field

The utility model relates to the technical field of building energy-saving external wall thermal insulation, in particular to an external wall thermal insulation structure for buildings with near zero energy consumption.

Background technique

At present, energy conservation and environmental protection has become a new topic that all walks of life in my country are constantly exploring. Near-zero energy consumption buildings in the construction industry have become the latest direction of research on building energy conservation and environmental protection. However, since near-zero energy consumption buildings are still in their infancy in my country, their existence The application technology system is not perfect, the durability of the thermal insulation system is low, the connection between the thermal insulation system and the wall is not firm, and the safety and reliability are low. Therefore, it is urgent to develop an external wall thermal insulation structure for buildings with near-zero energy consumption. On the premise of ensuring the energy consumption limit requirements of buildings with near-zero energy consumption, the connection performance between the thermal insulation system and the wall should be enhanced to ensure the performance of thermal insulation. Reliability, durability and safety.

SUMMARY OF THE INVENTION

The purpose of the utility model is to overcome the deficiencies of the prior art, and to provide a near-zero energy consumption building exterior thermal insulation structure with reasonable design, improving the durability and reliability of the thermal insulation system, and increasing the safety of the thermal insulation structure.

In order to achieve the above object, the technical scheme of the present utility model is:

An external thermal insulation structure for an exterior wall of a near-zero energy consumption building, comprising a base wall, the outer surface of the base wall is sequentially provided with a leveling layer, a rock wool board and a finishing layer; the space between the leveling layer and the rock wool board A first adhesive layer is fixed; a calcium silicate board is arranged between the rock wool board and the facing layer, and a second adhesive layer is arranged between the calcium silicate board and the facing layer; the rock wool A plurality of anchors are arranged in the plate, one end of the anchor is connected with the first adhesive layer, and the other end is connected with the calcium silicate board; Each of the thermal break bridge anchor bolts is fixed to the interior of the base wall through the calcium silicate slate rock wool board, the first adhesive layer and the leveling layer.

Further, the anchor includes a metal bracket, a first anchor nail and a second anchor nail, the metal bracket is in a horizontal "Z" shape, and one end of the metal bracket is arranged on the first adhesive layer, The other end is set on the calcium silicate board, the tail end of the first anchor nail is fixed to the inside of the base wall through the metal bracket, the first adhesive layer and the leveling layer, and the tail end of the second anchor nail passes through The calcium silicate board and the metal bracket are fixed to the inside of the rock wool board.

Further, the first adhesive layer is a layer structure made of adhesive.

Further, the second adhesive layer is a layer structure made of adhesive mortar, and an alkali-resistant mesh cloth is embedded in the second adhesive layer.

Further, a plurality of trapezoidal or annular holes are opened on the calcium silicate board, and the heat-breaking bridge anchor bolts are arranged in the holes. same plane.

Further, the number of heat-breaking bridge anchor bolts arranged on the calcium silicate board per square meter is 6-10.

Further, the facing layer is a layer body made of paint, lightweight facing material or a facing brick layer structure made of facing sand flexible facing bricks.

The beneficial effects of the present utility model are:

1. The utility model ensures the near-zero energy consumption building energy consumption limit requirements through the layer structure design of leveling layer, rock wool board, calcium silicate board and decorative layer arranged on the outside of the base wall, and enhances the relationship between the thermal insulation system and the wall. It can improve the reliability, durability and safety of thermal insulation performance and has high fire performance.

2. The leveling layer is leveled with cement mortar or anti-cracking mortar to increase the strength of the base wall and improve the air tightness; the rock wool board is fixed to the leveling layer through the first bonding layer and anchors to increase the base wall and the rock wool. The firmness between the cotton boards is improved, and the anchors make the connection between the rock wool boards more secure; the double-layer rock wool boards can also be arranged through the anchors, so as to improve the thermal insulation performance of the utility model.

3. Fix the thermal bridge anchor bolts from the calcium silicate board to the base wall to improve the stability of the thermal insulation structure and reduce the generation of thermal bridges; the calcium silicate board is provided with a plurality of trapezoidal or annular holes, so that the The outer surface of the calcium silicate board is at the same level as the top of the heat-breaking bridge anchor bolt to ensure the flatness of the calcium silicate board; The adhesive layer is embedded with alkali-resistant mesh to prevent cracking, hollowing or falling off due to wind, sun and rain.

Description of drawings

FIG. 1 is a schematic structural diagram of an external thermal insulation structure of an external wall for a near-zero energy consumption building of the present invention.

Fig. 2 is an enlarged structural schematic diagram of the position A in Fig. 1 of a near-zero energy consumption building exterior wall external thermal insulation structure of the present invention.

FIG. 3 is a schematic view of the construction structure of Embodiment 2 of an external thermal insulation structure for a near-zero energy consumption building of the present invention.

The reference numbers in the accompanying drawings are: 1 is the base wall, 2 is the leveling layer, 3 is the first bonding layer, 4 is the rock wool board, 5 is the calcium silicate board, 6 is the second bonding layer, 7 is the resistance Alkali mesh cloth, 8 is the finishing layer, 9 is the heat-breaking bridge anchor, 10 is the metal bracket, 11 is the first anchoring nail, and 12 is the second anchoring nail.

Detailed ways

The present utility model is further described below in conjunction with the accompanying drawings and specific embodiments:

Embodiment 1: As shown in Figures 1 to 2, a near-zero energy consumption building exterior wall thermal insulation structure includes a base wall 1, and the outer surface of the base wall 1 is sequentially provided with a leveling layer 2 and a rock wool board. 4 and the facing layer 8; a first adhesive layer 3 is fixed between the leveling layer 2 and the rock wool board 4, and the first adhesive layer 3 is used to bond the leveling layer 2 and the rock wool board 4; A calcium silicate board 5 is arranged between the rock wool board 4 and the facing layer 8, and a second adhesive layer 6 is arranged between the calcium silicate board 5 and the facing layer 8. The bonding layer 6 is used to bond the calcium silicate board 5 and the facing layer 8; the rock wool board 4 is provided with a plurality of anchors, one end of the anchors is connected with the first bonding layer 3, and the other end is connected with the silicic acid The calcium silicate board 5 is connected; the calcium silicate board 5 is provided with a plurality of heat-breaking bridge anchor bolts 9, and each of the heat-breaking bridge anchor bolts 9 passes through the calcium silicate board 5, the rock wool board 4, the first An adhesive layer 3 and a leveling layer 2 are fixed to the interior of the base wall 1 .

The single anchor includes a metal bracket 10, a first anchor nail 11 and a second anchor nail 12. The metal bracket 10 is in a horizontal "Z" shape, and one end of the metal bracket 10 is arranged on the first adhesive bond. The other end of the layer 3 is set on the calcium silicate board 5, and the tail end of the first anchoring nail 11 is fixed to the interior of the base wall 1 through the metal bracket 10, the first adhesive layer 3 and the leveling layer 2, The tail end of the second anchoring nail 12 is fixed to the inside of the rock wool board 4 through the calcium silicate board 5 and the metal bracket 10 . The first adhesive layer 3 is a layer structure made of adhesive. The second adhesive layer 6 is a layer structure made of adhesive mortar, and an alkali-resistant mesh cloth 7 is embedded in the second adhesive layer 6 . The calcium silicate plate 5 is provided with a plurality of trapezoidal or annular holes, and the heat-breaking bridge anchor bolts 9 are arranged in the holes. on the same plane. The facing layer 8 is a layer body made of paint, lightweight facing material or a facing brick layer structure made of facing sand flexible facing bricks.

During construction, the base wall 1 is a well-cast reinforced concrete or concrete block wall, the outer surface of base wall 1 is fixed with leveling layer 2, and the leveling layer 2 is leveled by cement mortar or anti-cracking mortar; strength, improve air tightness.

The outer surface of the leveling layer 2 is bonded to the first bonding layer 3, the first bonding layer 3 is a layer structure made of adhesive, the outer surface of the first bonding layer 3 is bonded to the rock wool board 4, and the leveling layer 2 is bonded to the rock wool. The plates 4 are fixedly connected by the first adhesive layer 3 .

A plurality of metal brackets 10 are arranged inside the rock wool board 4, and a single metal bracket 10 has a "Z" shape structure. Set on the outer surfaces of both sides of the rock wool board 4, the tail end of the first anchoring nail 11 is fixed to the base wall 1 through the lateral end of the metal bracket 10, the first adhesive layer 3 and the leveling layer 2, Improve the firmness of the connection between the base wall 1, the leveling layer 2 and the rock wool board 4.

The outer surface of the rock wool board 4 is provided with a calcium silicate board 5, and the tail end of the second anchor nail 12 is fixed to the interior of the rock wool board 4 through the calcium silicate board 5 and the lateral end of the other side of the metal bracket 10. The calcium salt plate 5 is provided with a plurality of trapezoidal holes, and the outer surface of the calcium silicate plate 5 is provided with a plurality of heat-breaking bridge anchor bolts 9, and each heat-breaking bridge anchor bolt 9 passes through the hole, the rock wool board 4, The first adhesive layer 3 and the leveling layer 2 are fixed to the base wall 1; the stability of the thermal insulation structure is improved, and the generation of thermal bridges is reduced at the same time. In the construction process, in order to ensure the flatness of the calcium silicate board 5, the outer surface of the calcium silicate board 5 and the top of the heat-breaking bridge anchor bolt 9 are always kept on the same plane.

The outer surface of the calcium silicate board 5 is bonded with a second bonding layer 6, the second bonding layer 6 is a layer structure made of bonding mortar, and the second bonding layer 6 is embedded with an alkali-resistant mesh cloth 7, In order to prevent the cracking, hollowing or falling off of the external thermal insulation structure of the external wall due to natural phenomena, the outer surface of the second adhesive layer 6 is bonded to the decorative layer 8 .

In this embodiment, the number of heat-breaking bridge anchor bolts 9 arranged on the calcium silicate board 5 per square meter is six.

Example 2: As shown in Figure 3, the structure of Example 2 and Example 1 are basically the same, and the similarities will not be repeated. The rock wool board 4 has two layers, and the two layers of the rock wool board 4 are superimposed on the left and right during construction to enhance the thermal insulation performance of the base wall 1; The two layers of rock wool board 4 , the first bonding layer 3 and the leveling layer 2 are fixed to the base wall 1 , and the outer surface of the calcium silicate board 5 is at the same level as the top of the heat-breaking bridge anchor bolt 9 .

In this embodiment, the number of heat-breaking bridge anchor bolts 9 provided on the calcium silicate board 5 per square meter is 10.

The above-mentioned embodiments are only preferred embodiments of the present invention, and do not limit the scope of implementation of the present invention. Therefore, any equivalent changes made in accordance with the structures, features and principles described in the patent scope of the present invention or Modifications should be included in the scope of the patent application of the present invention.

Claims (7)

1. An external thermal insulation structure for a near-zero energy consumption building, comprising a base wall (1), characterized in that the outer surface of the base wall (1) is sequentially provided with a leveling layer (2), a rock wool board (4) and the facing layer (8); a first bonding layer (3) is fixed between the leveling layer (2) and the rock wool board (4); the rock wool board (4) and the facing layer A calcium silicate board (5) is arranged between (8), and a second adhesive layer (6) is arranged between the calcium silicate board (5) and the facing layer (8); the rock wool board ( 4) A plurality of anchors are arranged inside, one end of the anchors is connected with the first adhesive layer (3), and the other end is connected with the calcium silicate board (5); A plurality of heat-breaking bridge anchor bolts (9) are provided, and each of the heat-breaking bridge anchor bolts (9) passes through the calcium silicate board (5), the rock wool board (4), the first adhesive layer (3) And the leveling layer (2) is fixed to the inside of the base wall (1). 2. An external wall thermal insulation structure for a near-zero energy consumption building according to claim 1, characterized in that the anchoring member comprises a metal bracket (10), a first anchoring nail (11) and a second anchoring nail (12), the metal bracket (10) has a horizontal "Z" shape structure, one end of the metal bracket (10) is arranged on the first adhesive layer (3), and the other end is arranged on the calcium silicate board (5), the tail end of the first anchoring nail (11) is fixed to the inside of the base wall (1) through the metal bracket (10), the first adhesive layer (3) and the leveling layer (2), so the The tail end of the second anchoring nail (12) is fixed to the inside of the rock wool board (4) through the calcium silicate board (5) and the metal bracket (10). 3 . The exterior wall thermal insulation structure for a near-zero energy consumption building according to claim 1 , wherein the first adhesive layer ( 3 ) is a layer structure made of adhesive. 4 . 4 . The exterior wall thermal insulation structure for a near-zero energy consumption building according to claim 1 , wherein the second adhesive layer ( 6 ) is a layer structure made of adhesive mortar, and the second adhesive layer ( 6 ) is a layered structure. 5 . The connection layer (6) is internally embedded with an alkali-resistant mesh cloth (7). 5. A near-zero energy consumption building exterior wall exterior thermal insulation structure according to claim 1, characterized in that, the calcium silicate board (5) is provided with a plurality of trapezoidal or annular holes to cut off heat. The bridge anchor bolt (9) is arranged in the hole, and the top of the heat-breaking bridge anchor bolt (9) is on the same plane as the outer surface of the calcium silicate board (5). 6. A near-zero energy consumption building exterior wall exterior thermal insulation structure according to claim 1, characterized in that the thermal break bridge anchor bolts (9) set on the calcium silicate board (5) per square meter The number is 6 to 10. 7. A near-zero energy consumption building exterior wall exterior thermal insulation structure according to claim 1, wherein the finish layer (8) is a layer or finish made of paint and lightweight finish materials Finished brick layer structure made of sand flexible face bricks.

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