Fabricated refrigeration house ceiling heat preservation structure

Abstract

The utility model discloses an assembly type refrigeration house ceiling heat preservation structure which comprises heat preservation layer units and a plurality of sets of supporting units which are arranged between floors and the heat preservation layer units and used for hanging the heat preservation layer units below the floors, and each supporting unit comprises a lead screw hanging rod and a heat preservation layer clamping unit. The top of the lead screw suspender is fixedly connected with a C-shaped lifting piece arranged on the side face of the top beam through a pair of fixing nuts A. The heat preservation layer clamping unit is arranged at the bottom of the lead screw suspender and comprises a plurality of sets of horizontally-arranged polyurethane sandwich panels, and plate heads of every two adjacent sets of polyurethane sandwich panels are fixed through the heat preservation layer clamping unit. And a cold bridge breaking mechanism is arranged at the top end of the plate head joint. The joints of the heads of the adjacent polyurethane sandwich boards are clamped up and down through the heat preservation layer clamping units, the tops of the polyurethane sandwich boards are blocked and insulated through polyurethane foaming, gaps between the boards are effectively filled and covered, the risk that cold bridges appear at the gaps of the ceiling sandwich boards is eradicated, the heat preservation performance is enhanced, and the construction quality is improved.

Description

Technical Field

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

[0002] With the advancement of society and the improvement of people's living standards, the use of cold storage in national production has become increasingly common. As the core infrastructure supporting cold chain logistics, cold storage investment and construction are showing a rapid growth trend. During the cold storage construction process, as insulation-related technologies become increasingly mature, more and more cold storage ceilings are being assembled and constructed using polyurethane sandwich panels. Using polyurethane sandwich panels as the insulation layer of cold storage ceilings greatly improves the insulation construction efficiency and aesthetics, but it also has some drawbacks. For example, after a cold storage has been in operation for a period of time, the gaps between the panels become larger over time, and cold air leakage is obvious in the panel gaps. As a result, the energy consumption required to maintain the cold storage temperature increases year by year, increasing the cold storage operating costs. Utility Model Content

[0003] In order to solve the technical problems mentioned in the background technology, the utility model provides an assembled cold storage ceiling insulation structure.

[0004] The utility model adopts the following technical solutions: an assembled cold storage ceiling insulation structure, comprising an insulation layer unit and several groups of support units between the floor slab and the insulation layer unit for hanging the insulation layer unit below the floor slab; the support unit comprises a screw hanger and an insulation layer clamping unit; the top of the screw hanger is fixedly connected to a C-shaped hanger arranged on the side of the top beam by a pair of fixing nuts A; the insulation layer clamping unit is arranged at the bottom of the screw hanger; the insulation layer unit comprises several groups of horizontally arranged polyurethane sandwich panels; the board heads of two adjacent groups of polyurethane sandwich panels are fixed by the insulation layer clamping unit, and a cold bridge mechanism is provided at the top of the board head connection; the top of each group of polyurethane sandwich panels is formed with a first polyurethane insulation layer by on-site spraying; the top of the first polyurethane insulation layer is layered with an inorganic fiberglass outer protective layer.

[0005] Furthermore, the insulation layer clamping unit includes an upper clamping plate, a C-shaped steel ceiling keel support and a lower clamping plate arranged on the screw rod hanger; the upper clamping plate is arranged at the top of the plate head connection of two adjacent groups of polyurethane sandwich panels and is positioned by a pair of fixing nuts B; the C-shaped steel ceiling keel support is arranged at the bottom of the plate head connection of two adjacent groups of polyurethane sandwich panels; the lower clamping plate is assembled on the inner side of the C-shaped steel ceiling keel support and is positioned by a pair of fixing nuts C; the bottom opening of the C-shaped steel ceiling keel support is sealed by a reinforcing plate.

[0006] Furthermore, the cold bridge breaking mechanism includes a PVC sleeve mounted on a screw rod hanger; the PVC sleeve is arranged at the connection between the board heads of two adjacent groups of polyurethane sandwich panels, and the upper clamping pad is arranged on the inner side of the PVC sleeve; a second polyurethane insulation layer is formed in the PVC sleeve by on-site pouring.

[0007] Furthermore, the diameter of the screw rod is 12 to 16 mm.

[0008] Furthermore, the height of the PVC sleeve is ≥400 mm and the diameter is 110-120 mm.

[0009] Compared with the prior art, the advantages of the present invention are:

[0010] The prefabricated cold storage ceiling insulation structure designed by this utility model has adjacent polyurethane sandwich panel heads connected by an insulation layer clamping unit, and the top is insulated by on-site sprayed polyurethane foam, which effectively fills and covers the gaps between the panels, eliminating the risk of cold bridges in the gaps of the ceiling sandwich panels. The gaps at the connection between the screw rod and the polyurethane sandwich panel are further blocked by a cold bridge breaking mechanism, enhancing the insulation performance and improving the construction quality. At the same time, a polyurethane insulation layer is sprayed on top of the polyurethane sandwich panel, so the surface of the polyurethane sandwich panel is still visible inside the cold storage, preserving the overall aesthetics of the sandwich panel. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a schematic diagram of the overall structure of the assembled cold storage ceiling insulation structure of the utility model.

[0012] in:

[0013] 1-screw hanger, 2-C-shaped hanging climb, 3-fixing nut A, 4-polyurethane sandwich panel, 5-first polyurethane insulation layer, 6-upper clamping pad, 7-C-shaped steel ceiling keel support, 8-lower clamping pad, 9-fixing nut B, 10-fixing nut C, 11-reinforcement plate, 12-PVC casing, 13-second polyurethane insulation layer, 14-inorganic fiberglass outer sheath. DETAILED DESCRIPTION

[0014] In order to facilitate those skilled in the art to understand the technical solution of the present invention, the following is further described 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 present invention.

[0015] In the following detailed description, for ease of explanation, numerous specific details are set forth to provide a comprehensive understanding of the embodiments of the present invention. However, it will be apparent that one or more embodiments may be practiced without these specific details. Furthermore, descriptions of well-known structures and techniques are omitted in the following description to avoid unnecessarily obscuring the concepts of the present invention.

[0016] Please refer to Figure 1 , is a schematic diagram of the overall structure of an embodiment of the insulation structure of the prefabricated cold storage ceiling of the present invention, including an insulation layer unit and several groups of support units between the floor slab and the insulation layer unit for hanging the insulation layer unit below the floor slab. The support unit includes a screw hanger 1 and an insulation layer clamping unit. The diameter of the screw hanger 1 is 12 to 16 mm. The top of the screw hanger 1 is fixedly connected to the C-shaped hanging hook 2 set on the side of the top beam by a pair of fixing nuts A3. The insulation layer clamping unit is set at the bottom of the screw hanger 1. The insulation layer unit includes several groups of horizontally arranged polyurethane sandwich panels 4, and the board heads of two adjacent groups of polyurethane sandwich panels 4 are fixed by the insulation layer clamping unit. A cold bridge breaking mechanism is set at the top of the board head connection. The top of each group of polyurethane sandwich panels 4 is formed into a first polyurethane insulation layer 5 by on-site spraying, and the top of the first polyurethane insulation layer 5 is layered with an inorganic fiberglass outer protective layer 14.

[0017] During specific implementation, the insulation layer clamping unit includes an upper clamping pad 6, a C-shaped steel ceiling keel support 7, and a lower clamping pad 8 provided on the screw hanger 1. The upper clamping pad 6 is provided at the top of the plate head connection of two adjacent groups of polyurethane sandwich panels 4 and is positioned by a pair of fixing nuts B9. The C-shaped steel ceiling keel support 7 is provided at the bottom of the plate head connection of two adjacent groups of polyurethane sandwich panels 4. The lower clamping pad 8 is assembled on the inner side of the C-shaped steel ceiling keel support 7 and is positioned by a pair of fixing nuts C10. The bottom opening of the C-shaped steel ceiling keel support 7 is sealed by a reinforcing plate 11. The cold bridge breaking mechanism includes a PVC sleeve 12 provided on the screw hanger 1. The height of the PVC sleeve 12 is ≥400 mm and the diameter is 110-120 mm. PVC sleeves 12 are installed at the joints between the two adjacent sets of polyurethane sandwich panels 4, and upper clamping pads 6 are installed inside the PVC sleeves 12. A second polyurethane insulation layer 13 is formed inside the PVC sleeves 12 by pouring on-site. The nuts and other connectors used in this embodiment are wrapped inside the polyurethane insulation layer, reducing the risk of metal parts rusting, increasing stability, extending service life, and making it safer to use.

[0018] In summary, the prefabricated cold storage ceiling insulation structure designed by the utility model has adjacent polyurethane sandwich panel heads connected by an insulation layer clamping unit, and the top is insulated by on-site sprayed polyurethane foam, which effectively fills and covers the gaps between the panels, eliminating the risk of cold bridges in the gaps of the ceiling sandwich panels. The gaps at the connection between the screw rod and the polyurethane sandwich panel are further blocked by the cold bridge breaking mechanism, thereby enhancing the insulation performance and improving the construction quality. At the same time, the polyurethane insulation layer is sprayed on top of the polyurethane sandwich panel, so the surface of the polyurethane sandwich panel is still visible in the cold storage, preserving the overall aesthetics of the sandwich panel.

[0019] The above embodiments are merely descriptions of preferred implementation methods 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 scope of protection determined by the claims of the present invention.

Claims

1. An assembled cold storage ceiling insulation structure, characterized in that: The invention comprises a thermal insulation layer unit and a plurality of support units between the floor slab and the thermal insulation layer unit for hanging the thermal insulation layer unit below the floor slab; the support unit comprises a screw rod (1) and a thermal insulation layer clamping unit; the top of the screw rod (1) is fixedly connected to a C-shaped hanging hook (2) arranged on the side of the top beam through a pair of fixing nuts A (3); the thermal insulation layer clamping unit is arranged at the bottom of the screw rod (1); the thermal insulation layer unit comprises a plurality of groups of horizontally arranged polyurethane sandwich panels (4); the board heads of two adjacent groups of polyurethane sandwich panels (4) are fixed through the thermal insulation layer clamping unit, and a cold bridge mechanism is arranged at the top of the board head connection; a first polyurethane thermal insulation layer (5) is formed on the top of each group of polyurethane sandwich panels (4) by on-site spraying; an inorganic glass fiber reinforced plastic outer sheath (14) is layered on the top of the first polyurethane thermal insulation layer (5).

2. The assembled cold storage ceiling insulation structure according to claim 1 is characterized in that: The thermal insulation layer clamping unit comprises an upper clamping pad (6) arranged on the screw rod hanger (1), a C-shaped steel ceiling keel support (7) and a lower clamping pad (8); the upper clamping pad (6) is arranged at the top of the plate head connection of two adjacent groups of polyurethane sandwich panels (4) and is positioned by a pair of fixing nuts B (9); the C-shaped steel ceiling keel support (7) is arranged at the bottom of the plate head connection of two adjacent groups of polyurethane sandwich panels (4); the lower clamping pad (8) is assembled on the inner side of the C-shaped steel ceiling keel support (7) and is positioned by a pair of fixing nuts C (10); the bottom opening of the C-shaped steel ceiling keel support (7) is sealed by a reinforcing plate (11).

3. The assembled cold storage ceiling insulation structure according to claim 2 is characterized in that: The cold bridge breaking mechanism comprises a PVC sleeve (12) sleeved on a screw rod hanger (1); the PVC sleeve (12) is arranged at the connection between the plate heads of two adjacent groups of polyurethane sandwich panels (4), and the upper clamping pad (6) is arranged on the inner side of the PVC sleeve (12); a second polyurethane thermal insulation layer (13) is formed in the PVC sleeve (12) by on-site pouring.

4. The assembled cold storage ceiling insulation structure according to claim 3 is characterized in that: The diameter of the screw rod hanger (1) is 12-16 mm.

5. The assembled cold storage ceiling insulation structure according to claim 4 is characterized in that: The height of the PVC sleeve (12) is ≥400 mm and the diameter is 110-120 mm.

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