Cold storage ceiling heat preservation structure

Abstract

The utility model discloses a refrigeration house ceiling heat preservation structure which comprises a reinforced concrete floor. Two polyurethane cyanogen condensation vapor barrier layers are laid on the bottom surface of the reinforced concrete floor; the bottom surfaces of the two polyurethane cyanogen condensation vapor barrier layers are sprayed on site to form a polyurethane composite thermal insulation layer; the polyurethane composite heat preservation layer comprises a polyurethane heat preservation base layer formed by spraying the polyurethane cyanogen condensation vapor barrier layer in a layered mode on site. A color steel plate is mounted at the bottom of the polyurethane thermal insulation base layer; a plurality of heat insulation nylon rods are vertically connected between the reinforced concrete floor slab and the color steel plate; the ends, close to the reinforced concrete floor, of the heat insulation nylon rods are fixed in the reinforced concrete floor through bolts. The ends, away from the reinforced concrete floor, of the heat-insulation nylon rods are fixedly connected with the color steel plates through L-shaped angle steel keels and screws. No gap exists between the whole polyurethane composite heat preservation layers, the cold leakage phenomenon is avoided, meanwhile, bacterium breeding is avoided, and meanwhile the stability of the heat preservation layers is enhanced through the color steel plates and the L-shaped angle steel keels.

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 on the market need to be converted into cold storage. Most of the cold storage ceilings adopt the design scheme of directly laying composite polyurethane boards or spraying polyurethane on site to form an insulation layer. However, gaps are easily generated between the composite polyurethane board layers, causing cold to escape. The ready-made spray-formed polyurethane insulation layer is easy to be contaminated or breed bacteria due to the lack of protection, and the stability is also poor, which cannot meet the requirements of sealing and insulation of the cold storage ceiling. 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.

[0004] The utility model adopts the following technical scheme: a cold storage ceiling insulation structure, including a reinforced concrete floor; two layers of polyurethane cyanide vapor barrier layers are laid on the bottom surface of the reinforced concrete floor; the bottom surfaces of the two layers of polyurethane cyanide vapor barrier layers are sprayed on site to form a polyurethane composite thermal insulation layer; the polyurethane composite thermal insulation layer includes a polyurethane thermal insulation base layer formed by spraying on site in layers on the polyurethane cyanide vapor barrier layer; a color steel plate is installed on the bottom of the polyurethane thermal insulation base layer; a plurality of insulating nylon rods are vertically connected between the reinforced concrete floor and the color steel plate; one end of the insulating nylon rod close to the reinforced concrete floor is fixed in the reinforced concrete floor by bolts; one end of the insulating nylon rod away from the reinforced concrete floor is fixedly connected to the color steel plate by an L-shaped angle steel keel and screws.

[0005] Furthermore, the thickness of the two layers of polyurethane cyanocondensate vapor barrier is 0.2-0.3 mm.

[0006] Furthermore, the lateral spacing between the plurality of heat-insulating nylon rods is 1.0-1.2 m, and the longitudinal spacing is 0.7-1.0 m.

[0007] Compared with the prior art, the advantages of the utility model are:

[0008] The utility model designs a cold storage ceiling insulation structure, wherein two layers of polyurethane cyanide vapor barrier layers are laid at the bottom of the reinforced concrete floor slab, and a polyurethane composite insulation layer is laid at the bottom of the two layers of polyurethane cyanide vapor barrier layers, the polyurethane composite insulation layer comprises a polyurethane insulation base layer sprayed on site, and a color steel plate is installed at the bottom of the polyurethane insulation base layer, and there is no gap between the entire polyurethane composite insulation layer, which avoids cold escape and bacterial growth, and the color steel plate and the L-shaped angle steel keel also enhance the stability of the insulation layer. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1 It is a schematic diagram of the cross-sectional structure of the cold storage ceiling insulation structure of the utility model.

[0010] in:

[0011] 1- reinforced concrete floor, 2- polyurethane cyanide vapor barrier, 3- polyurethane thermal insulation base, 4- L-shaped angle steel keel, 5- color steel plate, 6- insulation nylon rod. DETAILED DESCRIPTION

[0012] 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.

[0013] 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.

[0014] Please refer to Figure 1, is a cross-sectional structural diagram of the utility model cold storage ceiling insulation structure, including a reinforced concrete floor 1, and two layers of polyurethane cyanide condensation vapor barrier 2 are laid on the bottom surface of the reinforced concrete floor 1. In specific implementation, the thickness of the two layers of polyurethane cyanide condensation vapor barrier 2 is 0.2-0.3mm. In order to ensure uniform film formation, spraying is done twice, and the "cross" method is adopted. The first layer is used as a permeation layer. The viscosity of the raw material is small, between 400-800, so the permeability is strong and can close the concrete pores. The bottom surface of the two layers of polyurethane cyanide condensation vapor barrier 2 is sprayed on site to form a polyurethane composite insulation layer. The polyurethane composite insulation layer includes a polyurethane insulation base layer 3 formed by spraying on the polyurethane cyanide condensation vapor barrier 2 in layers, and a color steel plate 5 is installed at the bottom of the polyurethane insulation base layer 3. In specific installation, a layer of polyurethane insulation layer can be sprayed first, and then the color steel plate 5 is installed. After a certain gap is reserved between the color steel plate 5 and the polyurethane insulation layer, the gap is filled with polyurethane. The color steel plate 5 is laid in close contact with the wall and beam, which helps to reduce the space occupied on the top of the ceiling. A plurality of insulating nylon rods 6 are vertically connected between the reinforced concrete floor 1 and the polyurethane composite insulation layer to form a cold bridge structure. The end of the insulating nylon rod 6 close to the reinforced concrete floor 1 is fixed in the reinforced concrete floor 1 by bolts, and the end of the insulating nylon rod 6 away from the reinforced concrete floor 1 is fixedly connected to the color steel plate 5 by an L-shaped angle steel keel 4 and screws. The horizontal spacing between the plurality of insulating nylon rods 6 is 1.0-1.2m, and the vertical spacing is 0.7-1.0m.

[0015] To sum up, the cold storage ceiling insulation structure designed by the utility model is composed of two layers of polyurethane cyanide vapor barrier layers laid at the bottom of the reinforced concrete floor slab, and a polyurethane composite insulation layer is laid at the bottom of the two layers of polyurethane cyanide vapor barrier layers. The polyurethane composite insulation layer includes a polyurethane insulation base layer sprayed on site, and a color steel plate is installed at the bottom of the polyurethane insulation base layer. There is no gap between the entire polyurethane composite insulation layer, which avoids the phenomenon of cold leakage and the growth of bacteria. At the same time, the color steel plate and the L-shaped angle steel keel also enhance the stability of the insulation layer.

[0016] 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 (1); two layers of polyurethane cyanide vapor barrier (2) are laid on the bottom surface of the reinforced concrete floor (1); the bottom surfaces of the two layers of polyurethane cyanide vapor barrier (2) are sprayed on site to form a polyurethane composite thermal insulation layer; the polyurethane composite thermal insulation layer comprises a polyurethane thermal insulation base layer (3) formed by spraying on site in layers on the polyurethane cyanide vapor barrier (2); a color steel plate (5) is installed at the bottom of the polyurethane thermal insulation base layer (3); a plurality of heat-insulating nylon rods (6) are vertically connected between the reinforced concrete floor (1) and the color steel plate (5); one end of the heat-insulating nylon rod (6) close to the reinforced concrete floor (1) is fixed in the reinforced concrete floor (1) by bolts; and one end of the heat-insulating nylon rod (6) away from the reinforced concrete floor (1) is fixedly connected to the color steel plate (5) by an L-shaped angle steel keel (4) and screws.

2. The cold storage ceiling insulation structure according to claim 1 is characterized in that: The thickness of the two layers of polyurethane cyanocondensate vapor barrier (2) is 0.2-0.3 mm.

3. The cold storage ceiling insulation structure according to claim 2 is characterized in that: The lateral spacing between the plurality of heat-insulating nylon rods (6) is 1.0-1.2 m, and the longitudinal spacing is 0.7-1.0 m.

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