Heat preservation refrigeration house body structure of ultralow-temperature refrigeration house

Abstract

The utility model relates to the technical field of ultralow-temperature refrigeration houses, in particular to a heat preservation house body structure of an ultralow-temperature refrigeration house, which comprises a ground layer, outer wall plates are arranged on four sides of the ground layer, a top plate is arranged among the top ends of the outer wall plates on the four sides, and PU (polyurethane) filling materials are filled at joints of the outer wall plates on the four sides and the top plate. And protective layers are arranged at joints of the ground layer and the outer wall plates on the four sides. The ground layer, the outer wall plate, the top plate, the PU filling material and the protective layer are used in cooperation, the connecting position of the outer wall plate and the top plate is filled with the PU filling material, a good sealing effect can be provided, cold air leakage and external hot air permeation are prevented, the energy use efficiency is optimized, the protective layer is arranged at the connecting position of the ground layer and the outer wall plate, and the service life of the refrigerator is prolonged. The protective layer is made of the stainless steel sheet, so that additional mechanical protection can be provided, physical damage is prevented, good anti-corrosion performance is achieved, and meanwhile the heat bridge effect can be avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of ultra-low temperature cold storage, in particular to a heat preservation storage body structure of an ultra-low temperature cold storage. Background Art

[0002] Ultra-low temperature cold storage is a specially designed refrigeration facility used to store products that need to be kept at extremely low temperatures, such as biological products, pharmaceuticals, scientific research samples, food and other sensitive items. This type of cold storage can provide a temperature environment far lower than conventional refrigeration or freezing facilities, usually reaching minus 40 degrees Celsius or even lower, such as minus 80 degrees Celsius or minus 150 degrees Celsius.

[0003] In the structure of the cold storage, thermal bridges may form in certain areas, that is, heat is more easily transferred through these parts. This phenomenon is common in the door frames or wall joints of the cold storage, resulting in a decrease in thermal insulation performance. Therefore, it is necessary to design an insulated storage structure for ultra-low temperature cold storage. Utility Model Content

[0004] The purpose of the utility model is to provide a heat preservation storage body structure of an ultra-low temperature cold storage to solve the problems raised in the above background technology.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A heat preservation storage structure of an ultra-low temperature cold storage, comprising

[0007] The ground layer, the four sides of the ground layer are all provided with exterior wall panels, a top plate is provided between the top ends of the exterior wall panels on the four sides, the connection seams between the exterior wall panels on the four sides and the top plate are filled with PU filling material, and a protective layer is provided at the connection seams between the ground layer and the exterior wall panels on the four sides;

[0008] Outer decorative panels are arranged on the four outer sides of the outer wall panel and the top panel, sealant is arranged between the outer decorative panel and the PU filling material, and inner wall panels are arranged between the inner sides of the outer wall panel and the top panel.

[0009] Preferably, the ground layer includes a lime soil layer, a concrete cushion layer, an SBS moisture-proof vapor barrier layer, an XPS thermal insulation layer, a plain concrete layer, a waterproof layer and a floor, and the ground layer is sequentially arranged from bottom to top by a lime soil layer, a concrete cushion layer, an SBS moisture-proof vapor barrier layer, an XPS thermal insulation layer, a plain concrete layer, a waterproof layer and a floor;

[0010] Preferably, the exterior wall panels and the top panels are composed of an outer protective layer, a heat reflecting layer, a heat insulating layer, a moisture-proof layer and a support layer, and the exterior wall panels and the top panels are composed of an outer protective layer, a heat reflecting layer, a heat insulating layer, a moisture-proof layer and a support layer arranged in sequence from the outside to the inside;

[0011] Preferably, the floor is a 250mm thick reinforced concrete floor, using C30 impermeable concrete that is rammed and leveled immediately, and is equipped with a single-layer bidirectional steel mesh;

[0012] Preferably, the XPS thermal insulation layer has three layers in total, each layer is 50 mm, and has a bulk density of ≥40 kg, a flame retardant oxygen index of ≥26, and a compressive strength of ≥200 kp;

[0013] Preferably, the protective layer is made of stainless steel sheet.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] 1. The insulation storage structure of this ultra-low temperature cold storage is used in conjunction with the ground layer, exterior wall panels, top panels, PU filling materials and protective layers. This cold storage uses PU filling materials at the joints between the exterior wall panels and the top panels, which can provide a good sealing effect, prevent cold air leakage and penetration of hot air from the outside, and optimize energy efficiency. A protective layer is set at the joints between the ground layer and the exterior wall panels. The protective layer is made of stainless steel sheet iron, which can provide additional mechanical protection, prevent physical damage, and has good anti-corrosion performance, while avoiding the thermal bridge effect.

[0016] 2. This is an ultra-low temperature cold storage insulation structure. The outer protective layer provides physical protection outside the cold storage to prevent the external environment from directly affecting the internal structure. The heat reflection layer can effectively reflect external heat energy and reduce the energy consumption of the cold storage. The insulation layer can provide excellent insulation performance to help maintain the internal low temperature stability. The moisture-proof layer can prevent the wall from absorbing moisture or water vapor penetration, and maintain a dry environment in the cold storage, which is especially important for storing sensitive items. The support layer provides additional physical support to enhance the stability and durability of the entire structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the ground layer structure of the utility model;

[0018] Figure 2 It is a schematic diagram of the overall cross-sectional structure of the utility model;

[0019] Figure 3 It is a schematic diagram of the ground layer structure of the utility model.

[0020] In the figure: 1. Ground layer; 2. External wall panel; 3. Top plate; 4. PU filling material; 5. Protective layer; 6. External decorative panel; 7. Sealant; 8. Internal wall panel; 9. Lime soil layer; 10. Concrete cushion layer; 11. SBS moisture-proof and vapor-proof layer; 12. XPS insulation layer; 13. Plain concrete layer; 14. Waterproof layer; 15. Floor; 16. External protective layer; 17. Heat-reflecting layer; 18. Insulation layer; 19. Moisture-proof layer; 20. Support layer. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] like Figure 1-3 As shown, a technical solution provided by the utility model:

[0023] A heat preservation storage structure of an ultra-low temperature cold storage, comprising a ground layer 1, outer wall panels 2 are arranged on the four sides of the ground layer 1, a top plate 3 is arranged between the tops of the four outer wall panels 2, PU filling material 4 is filled at the connection seams between the four outer wall panels 2 and the top plate 3, a protective layer 5 is arranged at the connection seams between the ground layer 1 and the four outer wall panels 2, the protective layer 5 is made of stainless steel sheet iron, outer decorative panels 6 are arranged on the four outer sides of the outer wall panels 2 and the top plate 3, a sealant 7 is arranged between the outer decorative panel 6 and the PU filling material 4, and an inner wall panel 8 is arranged between the inner side of the outer wall panels 2 and the top plate 3;

[0024] In this embodiment, the cold storage is filled with PU filling material 4 at the connection between the outer wall panel 2 and the top panel 3, which can provide a good sealing effect, prevent the leakage of cold air and the penetration of external hot air, and optimize the energy utilization efficiency. A protective layer 5 is set at the connection between the ground layer 1 and the outer wall panel 2. The protective layer 5 uses stainless steel sheet iron, which can provide additional mechanical protection, prevent physical damage, and has good anti-corrosion performance, while avoiding the generation of thermal bridge effect.

[0025] like Figure 2 As shown, the ground layer 1 includes a ash soil layer 9, a concrete cushion layer 10, an SBS moisture-proof vapor barrier layer 11, an XPS thermal insulation layer 12, a plain concrete layer 13, a waterproof layer 14 and a floor 15. The ground layer 1 is arranged in sequence from bottom to top by a ash soil layer 9, a concrete cushion layer 10, an SBS moisture-proof vapor barrier layer 11, an XPS thermal insulation layer 12, a plain concrete layer 13, a waterproof layer 14 and a floor 15. The XPS thermal insulation layer 12 has a total of three layers, each layer is 50 mm, and the bulk density is ≥40 kg, the flame retardant oxygen index is ≥26, and the compressive strength is ≥200 kp. The floor 15 is a 250 mm thick reinforced concrete floor, using C30 impermeable concrete that is tamped and leveled, and is equipped with a single-layer bidirectional steel mesh;

[0026] In this embodiment, the ash soil layer 9 and the concrete cushion layer 10 provide a solid foundation for the entire ground layer 1, support the upper structure, and reduce the impact of uneven ground settlement on the overall structure. The SBS moisture-proof vapor barrier layer 11 effectively blocks the rising of water vapor from underground, prevents excessive moisture inside the cold storage, and maintains a dry low-temperature environment. The XPS insulation layer 12 has high thermal insulation and low thermal conductivity, which helps reduce energy loss and maintain ultra-low temperature conditions in the cold storage. The three-layer setting can increase the thermal insulation effect, and the flame retardant and compressive resistance of each layer ensures safety and durability. The plain concrete layer 13 and the waterproof layer 14 provide additional structural stability and waterproof performance to protect the internal structure from external moisture. The floor 15 uses thick reinforced concrete to improve the bearing capacity and wear resistance of the ground.

[0027] like Figure 3 As shown, the exterior wall panel 2 and the top panel 3 are both composed of an outer protective layer 16, a heat reflecting layer 17, a heat insulating layer 18, a moisture-proof layer 19 and a support layer 20. The exterior wall panel 2 and the top panel 3 are both composed of an outer protective layer 16, a heat reflecting layer 17, a heat insulating layer 18, a moisture-proof layer 19 and a support layer 20 arranged in sequence from the outside to the inside;

[0028] In this embodiment, the outer protective layer 16 provides physical protection outside the cold storage to prevent the external environment from directly affecting the internal structure. The heat reflection layer 17 can effectively reflect external heat energy and reduce the energy consumption of the cold storage. The insulation layer 18 can provide excellent insulation performance to help maintain the internal low temperature stability. The moisture-proof layer 19 can prevent the wall from absorbing moisture or water vapor penetration, so as to maintain a dry environment in the cold storage, which is particularly important for storing sensitive items. The support layer 20 provides additional physical support to enhance the stability and durability of the entire structure.

[0029] Working principle: This cold storage uses PU filling material 4 to fill the joints between the outer wall panel 2 and the top panel 3, which can provide a good sealing effect, prevent cold air leakage and penetration of hot air from the outside, and optimize energy efficiency. A protective layer 5 is set at the joints between the ground layer 1 and the outer wall panel 2. The protective layer 5 is made of stainless steel sheet iron, which can provide additional mechanical protection, prevent physical damage, and has good anti-corrosion performance, while avoiding the thermal bridge effect.

[0030] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the utility model and are not used to limit the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection of the utility model is defined by the attached claims and their equivalents.

Claims

1. A heat preservation storage structure of an ultra-low temperature cold storage, characterized in that: include A ground layer (1), wherein the four sides of the ground layer (1) are each provided with an exterior wall panel (2), a top panel (3) is provided between the top ends of the exterior wall panels (2) on the four sides, the connection seams between the exterior wall panels (2) on the four sides and the top panel (3) are filled with PU filling material (4), and a protective layer (5) is provided at the connection seams between the ground layer (1) and the exterior wall panels (2) on the four sides; The outer four sides of the outer wall panel (2) and the top panel (3) are provided with outer decorative panels (6), a sealant (7) is provided between the outer decorative panel (6) and the PU filling material (4), and an inner wall panel (8) is provided between the inner sides of the outer wall panel (2) and the top panel (3).

2. The heat preservation storage structure of an ultra-low temperature cold storage according to claim 1 is characterized in that: The ground layer (1) comprises a ash soil layer (9), a concrete cushion layer (10), an SBS moisture-proof and vapor-proof layer (11), an XPS thermal insulation layer (12), a plain concrete layer (13), a waterproof layer (14) and a floor (15). The ground layer (1) is arranged in sequence from bottom to top, comprising a ash soil layer (9), a concrete cushion layer (10), an SBS moisture-proof and vapor-proof layer (11), an XPS thermal insulation layer (12), a plain concrete layer (13), a waterproof layer (14) and a floor (15).

3. The heat preservation storage structure of an ultra-low temperature cold storage according to claim 1 is characterized in that: The exterior wall panel (2) and the top panel (3) are both composed of an outer protective layer (16), a heat reflecting layer (17), a heat insulating layer (18), a moisture-proof layer (19) and a supporting layer (20). The exterior wall panel (2) and the top panel (3) are both composed of an outer protective layer (16), a heat reflecting layer (17), a heat insulating layer (18), a moisture-proof layer (19) and a supporting layer (20) arranged in sequence from the outside to the inside.

4. The heat preservation storage structure of an ultra-low temperature cold storage according to claim 2 is characterized in that: The floor (15) is a 250mm thick reinforced concrete floor, which is made of C30 impermeable concrete that is rammed and leveled immediately, and is equipped with a single-layer bidirectional steel mesh.

5. The heat preservation storage structure of an ultra-low temperature cold storage according to claim 2 is characterized in that: The XPS thermal insulation layer (12) has three layers in total, each layer is 50 mm thick, and has a bulk density of ≥40 kg, a flame retardant oxygen index of ≥26, and a compressive strength of ≥200 kp.

6. The heat preservation storage structure of an ultra-low temperature cold storage according to claim 1 is characterized in that: The protective layer (5) is made of stainless steel sheet.

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