Cold storage ceiling heat preservation structure

Abstract

The utility model discloses a refrigeration house ceiling heat preservation structure, and relates to the technical field of refrigeration houses. A plurality of extruded sheet layers are laid on the bottom face of the reinforced concrete floor in parallel, the bottom faces of the extruded sheet layers are fixed to the reinforced concrete floor through a plurality of nylon expansion bolts, the bottom faces of the extruded sheet layers are sprayed on site in a layered mode to form polyurethane heat preservation layers, and a plurality of steel wire meshes are embedded in the polyurethane heat preservation layers in parallel. And a fireproof coating outer protective layer is sprayed outside the polyurethane thermal insulation layer. According to the utility model, the extruded sheet is directly paved on the surface layer of the cleaned ceiling, and the extruded sheet is fixed on the concrete layer of the ceiling by using a plurality of nylon expansion bolts, so that the extruded sheet is not easy to fall off. The polyurethane heat preservation layer is formed under the extruded sheet through on-site spraying, original ceiling putty does not need to be removed, a large amount of manpower is saved, the cost is reduced, and the construction progress is accelerated. The steel wire mesh is laid in the middle of the polyurethane heat preservation layer, the stability of the heat preservation layer is improved, the overall attractiveness of the ceiling heat preservation is improved through the structure, and practicability is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of cold storage, in particular to a cold storage ceiling insulation structure. Background Art

[0002] With the rapid development of my country's economy, cold storage has been used more and more in national production. As the core infrastructure of cold chain logistics, cold storage investment and construction are showing a rapid growth trend. Now many old factories or warehouses want to be converted into cold storage, but the surface of the building ceiling often has putty from the original construction method. Because the original putty has poor adhesion with polyurethane cyanide, if the putty is not removed, the ceiling insulation layer will be at risk of falling off after the cold storage insulation construction is completed and put into use. In order to avoid the insulation layer falling off and injuring the staff in the cold storage, the original putty needs to be removed before construction. However, the original putty is difficult to remove, and the labor cost of removing it at high altitude is high. Utility Model Content

[0003] In order to solve the technical problems mentioned in the background technology, the utility model provides a cold storage ceiling insulation structure which does not require the removal of the original putty.

[0004] The utility model adopts the following technical scheme: a cold storage ceiling insulation structure, including a reinforced concrete floor; a plurality of extruded board layers are laid in parallel on the bottom surface of the reinforced concrete floor; the thickness of each extruded board layer is 50-80mm; the bottom surface of the extruded board layer is fixed to the reinforced concrete floor by a plurality of nylon expansion bolts; the bottom surface of the extruded board layer is sprayed in layers on site to form a polyurethane insulation layer; a plurality of layers of steel wire mesh are embedded in parallel in the polyurethane insulation layer; an outer protective layer of fire retardant coating is sprayed on the outside of the polyurethane insulation layer.

[0005] Furthermore, the thickness of the polyurethane insulation layer is 150-250 mm.

[0006] Compared with the prior art, the advantages of the utility model are:

[0007] The utility model designs a cold storage ceiling insulation structure, which directly lays extruded boards on the cleaned ceiling surface. The extruded boards are fixed to the ceiling concrete layer using a number of nylon expansion bolts to prevent them from falling off. The polyurethane insulation layer is formed by spraying on-site under the extruded boards, without the need to remove the original ceiling putty, thus saving a lot of manpower, reducing costs, and improving construction progress. The use of extruded boards for laying the first layer of insulation reduces the amount of polyurethane used and saves costs. A steel mesh is laid in the middle of the polyurethane insulation layer to increase the stability of the insulation layer. This structure improves the overall aesthetics of the ceiling insulation and improves practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] Figure 1 It is a schematic diagram of the cross-sectional structure of the cold storage ceiling insulation structure of the utility model.

[0009] in:

[0010] 1- reinforced concrete floor slab, 2- extruded board layer, 3- nylon expansion bolts, 4- polyurethane insulation layer, 5- steel wire mesh, 6- fire retardant coating outer protective layer. DETAILED DESCRIPTION

[0011] In order to facilitate those skilled in the art to understand the technical solution of the utility model, further description is now made with reference to the accompanying drawings. It should be understood that these descriptions are only exemplary and are not intended to limit the scope of the utility model.

[0012] In the following detailed description, for ease of explanation, many specific details are set forth to provide a comprehensive understanding of the embodiments of the present invention. However, it is apparent that one or more embodiments may be implemented without these specific details. In addition, in the following description, descriptions of known structures and technologies are omitted to avoid unnecessary confusion of the concepts of the present invention.

[0013] Please refer to Figure 1 , is a schematic diagram of the cross-sectional structure of the cold storage ceiling insulation structure of the utility model, including a reinforced concrete floor 1, and a plurality of extruded board layers 2 are laid in parallel on the bottom surface of the reinforced concrete floor 1. The thickness of each extruded board layer 2 is 50-80mm. The bottom surface of the extruded board layer 2 is fixed to the reinforced concrete floor 1 by a plurality of nylon expansion bolts 3. In the specific implementation, considering the stability of the extruded board, it is best to have 5-6 bolts per extruded board, including one at each corner and 1-2 in the middle. The bottom surface of the extruded board layer 2 is sprayed on site in layers to form a polyurethane insulation layer 4. In the specific implementation, the thickness of the polyurethane insulation layer 4 is 150-250mm. Several layers of steel mesh 5 are embedded in parallel in the polyurethane insulation layer 4, and a fire retardant coating outer protective layer 6 is sprayed on the outside of the polyurethane insulation layer 4 to perform fireproof partition.

[0014] In summary, the cold storage ceiling insulation structure designed by the utility model directly lays extruded boards on the cleaned ceiling surface, and the extruded boards are fixed to the ceiling concrete layer using a number of nylon expansion bolts to prevent them from falling off easily. The polyurethane insulation layer is formed by spraying on-site under the extruded boards, and there is no need to remove the original ceiling putty, which saves a lot of manpower, reduces costs, and improves construction progress. The use of extruded boards for laying the first layer of insulation reduces the amount of polyurethane used and saves costs. A steel mesh is laid in the middle of the polyurethane insulation layer to increase the stability of the insulation layer. This structure improves the overall aesthetics of the ceiling insulation and improves its practicality.

[0015] The above embodiments are merely descriptions of the preferred implementation modes of the present invention, and are not intended to limit the scope of the present invention. Without departing from the design spirit of the present invention, various modifications and improvements made to the technical solutions of the present invention by ordinary technicians in this field should fall within the protection scope determined by the claims of the present invention.

Claims

1. A cold storage ceiling insulation structure, characterized in that: The invention comprises a reinforced concrete floor slab (1); a plurality of extruded board layers (2) are laid in parallel on the bottom surface of the reinforced concrete floor slab (1); each of the extruded board layers (2) has a thickness of 50-80 mm; the bottom surface of the extruded board layer (2) is fixed to the reinforced concrete floor slab (1) by a plurality of nylon expansion bolts (3); the bottom surface of the extruded board layer (2) is sprayed in layers on site to form a polyurethane thermal insulation layer (4); a plurality of layers of steel wire mesh (5) are embedded in parallel in the polyurethane thermal insulation layer (4); and an outer protective layer (6) of fireproof coating is sprayed on the outside of the polyurethane thermal insulation layer (4).

2. The cold storage ceiling insulation structure according to claim 1 is characterized in that: The thickness of the polyurethane thermal insulation layer (4) is 150-250 mm.

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