Buffering return structure outside cold storage

By designing a buffer and return structure using polyurethane sandwich panels and stainless steel plates, the problem of water seepage through the cold storage passage was solved, achieving a low-temperature and low-humidity cold storage environment and reducing the impact of frost and humidity fluctuations on goods.

CN224228345UActive Publication Date: 2026-05-12YANTAI SHUNDA POLYURETHANE CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
YANTAI SHUNDA POLYURETHANE CO LTD
Filing Date
2025-06-03
Publication Date
2026-05-12

AI Technical Summary

Technical Problem

In existing cold storage structures, the passageway outside the cold storage has a water seepage problem, especially in the transition area between the cold storage and the ambient temperature area, which leads to frost formation and temperature and humidity fluctuations.

Method used

The buffer room and the return room adopt a specific structure. The buffer room uses polyurethane sandwich panels and a sloping roof, while the return room uses stainless steel panels and a sloping roof. The design is a pitched roof to avoid water vapor penetration.

Benefits of technology

It effectively reduces moisture penetration, maintains a low-temperature and low-humidity environment inside the cold storage, prevents frost formation, and reduces the impact of temperature and humidity fluctuations on goods.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a buffer return structure outside a refrigeration house, which comprises a buffer room, the buffering room comprises a plurality of first stand columns, a plurality of sets of first steel frameworks installed between every two adjacent first stand columns, a plurality of first polyurethane sandwich panels installed on the inner sides of the first steel frameworks and a plurality of second stand columns arranged on the outer rings of the first stand columns. The first anti-collision steel plates are installed between every two adjacent second stand columns, and the first ceiling is formed on the tops of the first polyurethane sandwich plates or / and the first steel framework. The cage returning room is arranged on one side of the buffering room and is communicated with the buffering room; comprising a plurality of third stand columns, a plurality of sets of second steel frameworks installed between every two adjacent third stand columns, a plurality of third polyurethane sandwich panels installed on the inner walls of the second steel frameworks and a second ceiling formed on the tops of the third polyurethane sandwich panels. Frost is generated on the steel plate, and water vapor is prevented from being formed and permeating downwards.
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Description

Technical Field

[0001] This utility model belongs to the field of building structure and relates to an external structure of a cold storage, specifically an external buffer and return structure for a cold storage. Background Technology

[0002] Cold storage refers to an environment created artificially, where the temperature and humidity differ from the outside. It is a constant-temperature and constant-humidity storage facility for items such as food, liquids, chemicals, pharmaceuticals, vaccines, and scientific experiments. Food cold storage is a building used for freezing and refrigerating food. It maintains a certain low temperature inside the storage room through artificial refrigeration. To reduce the transfer of external heat, the floor, walls, and roof of the cold storage are covered with a certain thickness of moisture-proof and air-proof layer and heat insulation layer.

[0003] A cold storage buffer room (also known as a cold storage passageway or pre-cooling room) is a specially designed space located between the ambient temperature area and the refrigerated area. Its main function is to provide a zone where the temperature gradually transitions, helping to reduce the impact of temperature fluctuations on goods, playing a crucial role, especially in cold chain logistics. The main function of the cold storage return room is to reduce frost buildup and temperature and humidity fluctuations within the storage area. By controlling the amount of hot and humid air entering the storage area, the return room effectively reduces frost formation.

[0004] Chinese invention patent application number 202411690779.4 discloses a multi-temperature zone passageway in a cold storage facility, comprising a return storage room and a passageway connected sequentially to the cold storage room. The passageway contains a sorting room and a pressure equalization system. The pressure equalization system includes a refrigeration unit, a first pressure equalization unit, and a second pressure equalization unit. The air inlet of the refrigeration unit is connected to a return air duct, and its air outlet is connected to a supply air duct. The first pressure equalization unit includes a supply air duct and a pressure equalization bag, with the supply air duct connected to the supply air duct. The return air duct on the side wall of the sorting room is connected to the air inlet of the refrigeration unit via a return air duct. Although this application discloses a return storage room and passageway structure outside the cold storage facility, it does not disclose the specific structure, leading to water seepage problems in the lower part of the passageway during use. Summary of the Invention

[0005] The purpose of this utility model is to provide an external buffer return structure for cold storage to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a cold storage external buffer return structure, comprising:

[0007] The buffer room includes multiple first columns, multiple sets of first steel frames installed between two adjacent first columns, multiple first polyurethane sandwich panels installed inside the first steel frames, multiple second columns arranged around the outer ring of the multiple first columns, multiple first anti-collision steel plates installed between two adjacent second columns, and a first canopy formed on the top of the multiple first polyurethane sandwich panels and / or the first steel frames. The first canopy includes an inclined first top plate and an inclined second top plate forming an obtuse angle with the first top plate. The first top plate and the second top plate are independently second polyurethane sandwich panels.

[0008] The return cage room, located on one side of and connected to the buffer room, includes multiple third columns, multiple sets of second steel frames installed between two adjacent third columns, multiple third polyurethane sandwich panels installed on the inner walls of the multiple sets of second steel frames, and a second canopy formed on top of the multiple third polyurethane sandwich panels. The second canopy includes an inclined third top plate and an inclined fourth top plate forming an obtuse angle with the third top plate. The third top plate and the fourth top plate are independently made of stainless steel.

[0009] Ideally, the first steel frame has a first doorway and a second doorway that are arranged opposite to each other, and a high-speed rolling shutter door is installed independently in the first doorway and the second doorway.

[0010] Furthermore, the second steel frame has a third doorway and a fourth doorway that are arranged opposite to each other. The third doorway is equipped with a cold storage door, and the fourth doorway is equipped with a crash-resistant free door. The third doorway is arranged opposite to the second doorway.

[0011] Furthermore, it also includes a partition wall, with the buffer room and the return room respectively located on both sides of the partition wall, and the partition wall having a clearance doorway corresponding to the third doorway and the second doorway.

[0012] Ideally, the angle between the first top plate and the second top plate is 120~150°, and the angle between the third top plate and the fourth top plate is 120~150°.

[0013] Ideally, the first anti-collision steel plate is made of 4-8mm steel plate and coated with anti-collision warning paint.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows: The external buffer and return cage structure of this utility model adopts a buffer room and a return cage room with a specific structure. The walls and ceiling of the buffer room are made of polyurethane sandwich panels, which facilitates the flow of water vapor down. The walls of the return cage room are sandwich panels, and the ceiling is made of stainless steel plate. The ceiling is a pitched roof, which produces frost on the steel plate and prevents water vapor from forming and seeping down. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the external buffer return structure of the cold storage of this utility model;

[0016] Figure 2 This is a side view of the buffer chamber of this utility model;

[0017] Figure 3 This is a side view of the rewinding chamber of this utility model. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] like Figures 1 to 3 The cold storage external buffer and return structure shown mainly includes a buffer room 1 and a return room 2, etc.

[0020] The buffer room 1 includes multiple first columns 11, multiple sets of first steel frames installed between adjacent first columns 11 (specifically, the number of first columns 11 can be conventionally selected according to the design area and design shape of the buffer room 1, usually forming a square structure, so that multiple sets of first steel frames can cooperate to form the building foundation structure; the same below), and multiple first polyurethane sandwich panels 12 installed on the inner side of the first steel frames (multiple first polyurethane sandwich panels 12 are installed on the inner side of the multiple sets of first steel frames, so that the first polyurethane sandwich panels 12 surround the inner side of the first steel frames). The system comprises: a ring of first columns 11, multiple second columns 13 arranged around the outer ring of the first columns 11, multiple first anti-collision steel plates 14 installed between adjacent second columns 13 (in this embodiment, the first anti-collision steel plates 14 are made of 4-8mm steel plates and coated with anti-collision warning paint, and surround the outer side of most of the first steel frame; the installation method can be conventional, such as inserting into the ground or welding to the steel plate inserted into the ground), and a first canopy formed on the top of multiple first polyurethane sandwich panels 12 and / or the first steel frame (the canopy can be formed by welding or fastener connection, etc., the same below). Specifically, the first canopy includes an inclined first top plate 17 and an inclined second top plate 18 forming an obtuse angle with the first top plate 17 (the connection between the first top plate 17 and the second top plate 18 forms a good seal, such as welding together or connecting through bent metal parts). The first top plate 17 and the second top plate 18 are independent second polyurethane sandwich panels, which facilitates the flow of water vapor and avoids the accumulation of water vapor on the inner surface of the first canopy, which may cause mold and other adverse effects. In a conventional house, the angle formed between the first roof plate 17 and the second roof plate 18 is 120~150°.

[0021] The heat exchange chamber 2 is located on one side of and connected to the buffer chamber 1. It includes multiple third columns 21, multiple sets of second steel frames 22 installed between adjacent third columns 21, multiple third polyurethane sandwich panels 23 installed on the inner walls of the multiple sets of second steel frames 22 (the multiple third polyurethane sandwich panels 23 surround the inner side of the multiple sets of second steel frames 22), and a second canopy formed on top of the multiple third polyurethane sandwich panels 23. The second canopy includes an inclined third top plate 26 and an inclined fourth top plate 27 forming an obtuse angle with the third top plate 26. The third top plate 26 and the fourth top plate 27 are independently made of stainless steel, which will generate frost on the steel plates and reduce moisture generation, ensuring a low-temperature, low-humidity environment inside the heat exchange chamber 2 and preventing moisture from forming and seeping downwards. In this embodiment, as in a conventional house, the included angle between the third top plate 26 and the fourth top plate 27 is 120~150°, which can be achieved through a folding plate process.

[0022] In this embodiment, the first steel frame has a first doorway 15 and a second doorway 16 arranged opposite to each other, and high-speed rolling doors are independently installed in the first doorway 15 and the second doorway 16. The second steel frame 22 has a third doorway 24 and a fourth doorway 25 arranged opposite to each other. The third doorway 24 is equipped with a cold storage door, and the fourth doorway 25 is equipped with a crash-resistant free door. The third doorway 24 is adjacent to and opposite to the second doorway 16. The cold storage external buffer return structure also includes a partition wall 3, so that the buffer room 1 and the return room 2 are respectively located on both sides of the partition wall 3. The partition wall 3 has clearance doorways corresponding to the third doorway 24 and the second doorway 16, which can ensure that large machinery or equipment (such as transport vehicles) can enter and exit the buffer room 1 and the return room 2 through the aforementioned doorways.

[0023] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A cold storage external buffer return structure, characterized in that it include: The buffer room (1) includes multiple first columns (11), multiple sets of first steel frames installed between two adjacent first columns (11), multiple first polyurethane sandwich panels (12) installed inside the first steel frames, multiple second columns (13) arranged around the multiple first columns (11), multiple first anti-collision steel plates (14) installed between two adjacent second columns (13), and a first canopy formed on the top of the multiple first polyurethane sandwich panels (12) and / or the first steel frames. The first canopy includes an inclined first top plate (17) and an inclined second top plate (18) forming an obtuse angle with the first top plate (17). The first top plate (17) and the second top plate (18) are independently second polyurethane sandwich panels. The return room (2) is located on one side of the buffer room (1) and communicates with it. It includes multiple third columns (21), multiple sets of second steel frames (22) installed between two adjacent third columns (21), multiple third polyurethane sandwich panels (23) installed on the inner wall of the multiple sets of second steel frames (22), and a second canopy formed on the top of the multiple third polyurethane sandwich panels (23). The second canopy includes a third top plate (26) set at an incline and a fourth top plate (27) set at an incline and forming an obtuse angle with the third top plate (26). The third top plate (26) and the fourth top plate (27) are stainless steel plates that are independent of each other.

2. The cold storage external buffer return structure according to claim 1, characterized in that: The first steel frame has a first doorway (15) and a second doorway (16) that are arranged opposite to each other. The first doorway (15) and the second doorway (16) are independently equipped with high-speed rolling doors.

3. The cold storage external buffer return structure according to claim 2, characterized in that: The second steel frame (22) has a third doorway (24) and a fourth doorway (25) that are arranged opposite to each other. The third doorway (24) is equipped with a cold storage door, and the fourth doorway (25) is equipped with a crash-proof free door. The third doorway (24) is arranged opposite to the second doorway (16).

4. The cold storage external buffer return structure according to claim 3, characterized in that: It also includes a partition wall (3), the buffer room (1) and the return room (2) are respectively located on both sides of the partition wall (3), and the partition wall (3) has a clearance door corresponding to the third doorway (24) and the second doorway (16).

5. The cold storage external buffer return structure according to claim 1, characterized in that: The included angle between the first top plate (17) and the second top plate (18) is 120~150°, and the included angle between the third top plate (26) and the fourth top plate (27) is 120~150°.

6. The cold storage external buffer return structure according to claim 1, characterized in that: The first anti-collision steel plate (14) is made of 4~8mm steel plate and is coated with anti-collision warning paint.