CN201007044Y - The structure of thermal insulation and energy-saving layer of wall body - Google Patents

Abstract

The utility model discloses a structure of a thermal insulation and energy-saving layer of a wall, which comprises a thermal insulation layer that can be fixedly bonded to the wall, and an anti-crack protective layer that is fixedly bonded to the thermal insulation layer. The thermal insulation layer is a polyurethane foam layer/polyurea foam layer with foaming cells in a fully closed honeycomb shape; the anti-crack protection layer is a flexible polymer cement layer with anti-crack and anti-seepage functions. Convenient, low construction cost, good thermal insulation and energy-saving effect, etc.

Description

The structure of thermal insulation and energy-saving layer of wall body

technical field

The utility model relates to a structure of a thermal insulation and energy-saving layer of a wall, which belongs to the energy-saving building technology.

Background technique

With the development of an energy-saving society, energy-saving technologies for buildings, including houses and large-scale cold storage, have become a subject of research and development for many people in the industry.

At present, the existing thermal insulation and energy-saving technologies for buildings mainly have the following three structural forms: one is to stick a thermal insulation layer mixed with plastic foam particles on the wall surface; The body surface is bonded with a prefabricated thermal insulation board, and the third type is an external thermal insulation panel composed of a thermal insulation layer, a thermal insulation layer, a leveling layer, an anti-crack protection layer and a finish layer such as disclosed in the Chinese patent authorization announcement number CN2711296Y. hot wall. Although said 3 kinds of heat preservation and heat insulation energy-saving technologies all have the effect of heat preservation and heat insulation and saving and regulating room temperature energy consumption, there are many deficiencies. The first technology mentioned is absolutely impossible to make the plastic particles used for heat preservation and heat insulation tightly bonded together without gaps, so the effect of heat preservation and heat insulation is still not ideal. It is more complicated, the construction cost is relatively high, and the bond with the wall is not firm enough, especially when it is necessary to lay load-bearing decorative materials such as exterior wall bricks on the surface of the thermal insulation layer, especially when the distance between buildings is small , and there is a high-speed wind passing through the narrow space of the building to cause a large negative pressure, the thermal insulation layer will inevitably peel off from the wall and fall, resulting in property damage and personal death.

Contents of the invention

The purpose of this utility model is to provide a structure with relatively simple structure, relatively convenient on-site construction, relatively low construction cost, and a structure with good thermal insulation and energy-saving effect of the wall body thermal insulation and energy-saving layer, so as to overcome the disadvantages of the prior art Insufficient to meet the needs of modern energy-saving buildings.

The technical scheme that the utility model realizes its purpose is,

A heat-insulation and energy-saving layer structure for a wall, including a heat-insulation layer that can be fixedly bonded to the wall, and an anti-crack protection layer that is fixedly bonded to the heat-insulation layer. The heat layer is a polyurethane foam layer/polyurea foam layer with foaming cells in a fully closed honeycomb shape; the anti-crack protection layer is a flexible polymer cement layer with anti-crack and anti-seepage functions.

It can be understood from the technical solutions given above that the utility model adopts polyurethane with good chemical stability and good bond strength and water-blocking performance that will no longer chemically react with other substances once it is formed because of its thermal insulation layer. Foam/polyurea foam, and because its foaming cells are in a fully closed honeycomb shape, it has good thermal insulation performance; during on-site construction, the compound emulsion of polyurethane/polyurea resin can be sprayed on the wall, After a short period of time, the construction of the thermal insulation layer can be completed, so the construction is very convenient; and the thickness of the thermal insulation layer (generally within the range of 5-100mm) can be obtained by spraying polyurethane/polyurea resin compound The amount of emulsion is controlled. And this control is also very convenient. And the main function of its anti-crack protective layer is to protect the thermal insulation layer, so its thickness is relatively small, generally controlled in the range of 5-20mm, so its quality per unit area is small, which can effectively prevent the utility model from The body of wall peels off and falls, thereby realizing the purpose of the present utility model.

The raw material of the flexible polymer cement of the anti-crack protection layer claimed by the utility model and its weight percentage are: cement 25%, yellow sand 75%; in every 1000Kg cement, yellow sand mixture, add 25kg emulsion, 1kg cellulose ether and 2kg polypropylene chopped fiber, and then reconcile with water to make the cement that can find the surface. Said glue can be artificially leveled, and can also be leveled manually after being applied with a spray gun.

The further innovation point of the utility model is:

Chopped fibers are also included in the crack protection layer. The chopped fibers can further effectively improve the crack resistance of the utility model. Generally, chopped fibers are added to the flexible polymer cement only when the anti-crack protective layer is thick.

It also includes a reinforced mesh, and the anti-crack protective layer is composed of an anti-crack protective bottom layer and an anti-crack protective surface layer; The surface layer is fixedly bonded to the anti-crack protection bottom layer through the mesh of the reinforced mesh. Due to the existence of the reinforcing net, the anti-crack performance and overall load-bearing capacity of the anti-crack protection layer of the utility model can be further improved. Moreover, the anti-crack protection layer is divided into a bottom layer and a surface layer, which can be more convenient for the covering construction of the reinforcement net.

The reinforcing net is a grid-like non-alkali glass fiber woven cloth, or a grid-like plastic wire woven cloth. Said glass fiber woven cloth and plastic silk woven cloth in grid shape are adopted under the conditions of coating coating or paint on the surface of the utility model or installing light decorative layers such as light aluminum-plastic composite boards.

The reinforcement mesh is a wire braid with mesh. The metal wire braid with mesh is adopted under the condition that the surface of the utility model is laid with load-bearing decorative layers such as wall tiles, so as to further improve the load-bearing capacity of the utility model.

An anchor is also included; one end of the anchor passes through the anti-crack protection bottom layer and the thermal insulation layer and is fixedly connected with the wall, while the other end of the anchor is connected/fastened with the metal reinforcement net. Due to the existence of the anchor piece, the connection strength between the utility model and the wall body can be further effectively improved, and the problem of peeling and falling of the utility model may be avoided under severe weather conditions.

Anchors are anchor nails with a large rake head at one end, or expansion screw assemblies. Said big rake head anchor nail is exactly like a thumbtack. One end of the large rake head anchor nail is nailed into the wall, and the other end of the large rake head is buckled and crimped with several warp and weft threads of the reinforcement net, so that the reinforcement net is firmly connected with the wall. The expansion screw assembly can be fastened to the reinforcement net through nuts and pressure plates, or can be buckled together with the reinforcement net and the expansion screw with iron wires. Generally speaking, the expansion screw assembly can be used when a larger load-bearing surface finish is required. If the body of wall is a body of steel plate wall, then said anchor piece is welded and connected with the body of steel plate wall. For example, a large-scale cold storage with a steel plate wall can take technical measures to weld the anchor piece and the steel plate wall.

After the above-mentioned technical scheme is implemented, the utility model has the characteristics of simple and reasonable structure, convenient construction, low cost, safety and reliability, good thermal insulation and energy-saving effect, etc., which are obvious.

Description of drawings

Fig. 1 is a schematic sectional view of a specific embodiment of the utility model; 6 shown in the figure is a decorative layer;

FIG. 2 is a schematic diagram of the crimping state of the anchor piece 3 and the reinforcing mesh 5 as shown in FIG. 1 .

Detailed ways

The utility model will be further described below by referring to the accompanying drawings and through the description of specific embodiments.

For one of the specific implementation modes, please refer to accompanying drawing 1.

A structure of a thermal insulation energy-saving layer for a wall, comprising a thermal insulation layer 2 that can be fixedly bonded to a wall 1, and an anti-crack protection layer 4 that is fixedly bonded to the thermal insulation layer 2. Layer 2 is a polyurethane foam layer/polyurea foam layer with foaming cells in a fully closed honeycomb shape; anti-crack protection layer 4 is a flexible polymer cement layer with anti-crack and anti-seepage functions.

For the second specific embodiment, please refer to accompanying drawing 1.

A structure of a thermal insulation energy-saving layer for a wall, comprising a thermal insulation layer 2 that can be fixedly bonded to a wall 1, and an anti-crack protection layer 4 that is fixedly bonded to the thermal insulation layer 2. Layer 2 is a good polyurethane foam layer with foaming cells in a fully closed honeycomb shape; the anti-crack protection layer 4 is a flexible polymer cement layer with anti-crack and anti-seepage functions; the anti-crack protection layer 4 also contains chopped fibers; Including reinforcement mesh 5, and anti-crack protection layer 4 is composed of anti-crack protection bottom layer 4-1 and anti-crack protection surface layer 4-2; Covered on the anti-crack protection bottom layer 4-1, the anti-crack protection surface layer 4-2 is fixedly bonded with the anti-crack protection bottom layer 4-1 through the mesh holes of the reinforcing net 5.

The third specific embodiment is shown in Figures 1 and 2.

A structure of a thermal insulation energy-saving layer for a wall, comprising a thermal insulation layer 2 that can be fixedly bonded to a wall 1, and an anti-crack protection layer 4 that is fixedly bonded to the thermal insulation layer 2. Layer 2 is a good polyurethane foam layer with foaming cells in a fully closed honeycomb shape; anti-crack protection layer 4 is a flexible polymer cement layer with anti-crack and impermeability functions; anti-crack protection layer 4 also contains polypropylene chopped fibers ; It also includes a reinforcement net 5, and the anti-crack protective layer 4 is composed of an anti-crack protective bottom layer 4-1 and an anti-crack protective surface layer 4-2; the anti-crack protective bottom layer 4-1 is fixedly bonded with the thermal insulation layer 2 to The net 5 is pasted on the anti-crack protection bottom layer 4-1, and the anti-crack protection surface layer 4-2 is fixedly bonded with the anti-crack protection bottom layer 4-1 through the mesh holes of the reinforcement mesh 5; Silk braid; also includes an anchor 3; one end of the anchor 3 passes through the anti-crack protection bottom layer 4-1 and the thermal insulation layer 2 and is fixedly connected to the wall 1, and the other end is fastened with the metal reinforcement mesh 5; the anchor 3, one end has the steel anchor nail of big rake head.

The brief description of the construction process of the third specific embodiment of the present invention is, please refer to the accompanying drawings 1 and 2, and follow the following steps in turn: remove floating ash, oil stains, etc. on the wall surface; clean the wall surface with a spray gun Spray polyurethane emulsion, foam after 4 to 15 seconds, and then maintain for 4 to 5 hours, then manually correct the surface of the thermal insulation layer 2; manually scrape and apply the anti-crack protective bottom layer 4-1 on the surface of the thermal insulation layer 2 And leveling; after 3 hours, the reinforcement mesh 5 is pasted on the anti-crack protection bottom layer 4-2, and the reinforcement mesh 5 is connected to the wall 1 with anchor nails 3; ; After being cured, a wall brick decoration layer 6 is laid on the surface of the anti-crack protection surface layer 4-2.

The small test effect of the utility model is very good. When the heat insulation layer 2 is 30 mm thick, the anti-crack protective layer 5 is 5 mm thick, and there is no heat source in the room and it is airtight, the indoor and outdoor temperature difference can reach 8°C to 10°C.

Claims (7)

1. A structure of a thermal insulation and energy-saving layer of a wall, comprising a thermal insulation layer (2) that can be fixedly bonded to the wall (1), and an anti-crack protection that is fixedly bonded to the thermal insulation layer (2) Layer (4), characterized in that: said thermal insulation layer (2) is a polyurethane foam layer/polyurea foam layer whose foaming cells are fully closed honeycomb; Functional flexible polymer mastic layer. 2. The structure of the thermal insulation and energy-saving layer of the wall according to claim 1, characterized in that: the anti-crack protection layer (4) also contains chopped fibers. 3. The structure of the thermal insulation and energy-saving layer of the wall body according to claim 1 or 2, characterized in that: it also includes a reinforcement net (5), and the anti-crack protection layer (4) is formed by the anti-crack protection bottom layer (4-1 ) and the anti-crack protection surface layer (4-2); the anti-crack protection bottom layer (4-1) is fixedly bonded with the thermal insulation layer (2), and the reinforcing mesh (5) is covered on the anti-crack protection bottom layer (4- 1), the anti-crack protection surface layer (4-2) is fixedly bonded to the anti-crack protection bottom layer (4-1) through the mesh holes of the reinforcing net (5). 4. The structure of the wall thermal insulation and energy-saving layer according to claim 3, characterized in that: the reinforcing net (5) is a grid-like alkali-free glass fiber woven cloth, or a grid-like plastic wire Woven cloth. 5. The structure of the thermal insulation and energy-saving layer of the wall according to claim 3, characterized in that: the reinforcement net (5) is a metal wire braid with mesh holes. 6. The structure of the wall thermal insulation and energy-saving layer according to claim 5, characterized in that: it also includes an anchor (3); one end of the anchor (3) passes through the anti-crack protection bottom layer (4-1) and the thermal insulation The heat insulation layer (2) is fixedly connected with the wall body (1), and its other end is connected/fastened with the metal reinforcement net (5). 7. The structure of the thermal insulation and energy-saving layer of the wall according to claim 6, characterized in that the anchor (3) is an anchor nail with a large rake head at one end, or an expansion screw assembly.

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