Air circulation system for cold storage
By designing an air circulation system for cold storage, utilizing dehumidifier packs for dehumidification and activated carbon packs for air purification, the problems of moisture icing and harmful gases in cold storage were solved, achieving effective air purification and convenient equipment maintenance.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHENZHEN BIBO REFRIGERATION EQUIPMENT CO LTD
- Filing Date
- 2025-07-01
- Publication Date
- 2026-07-03
Smart Images

Figure CN224455078U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of cold storage air circulation technology, and in particular to an air circulation system for cold storage. Background Technology
[0002] A cold storage facility is a constant-temperature storage device that creates a specific temperature and humidity environment through artificial refrigeration. It is mainly used for storing food, medicine, chemicals, and other items that require low-temperature preservation. Cold storage facilities utilize mechanical refrigeration technology to maintain a low-temperature environment inside the storage room. Its core functions include constant temperature and humidity storage, extending the shelf life of products, and regulating market supply. Due to long-term use, cold storage facilities accumulate moisture inside, which can freeze and affect subsequent use. In addition, there are harmful gases in the air, and there is a lack of a device that can circulate and filter the air to purify the air inside the cold storage facility.
[0003] Therefore, those skilled in the art have provided an air circulation system for cold storage to solve the problems mentioned in the background art. Utility Model Content
[0004] To address the issues of moisture buildup inside cold storage facilities due to long-term use, which can condense and affect subsequent use, and the presence of harmful gases in the air, and the lack of a device for purifying the air inside cold storage facilities through air circulation and filtration, this invention provides an air circulation system for cold storage facilities.
[0005] This utility model provides an air circulation system for cold storage, which adopts the following technical solution:
[0006] An air circulation system for cold storage includes an air circulation assembly comprising a purification chamber. A mesh screen is fixedly installed inside the purification chamber. A drying pack is disposed on one side of the mesh screen, and an activated carbon pack is disposed on the other side. A fan is fixedly installed on one side of the purification chamber. The input end of the fan is connected to a first ventilation duct. One end of the first ventilation duct is connected to a first air guide pipe, and one end of the first air guide pipe is connected to an exhaust head. The other end of the purification chamber is connected to a second ventilation duct. One end of the second ventilation duct is connected to a second air guide pipe, and one end of the second air guide pipe is connected to an exhaust head. Connecting components are provided between the first ventilation duct and the first air guide pipe, and between the second ventilation duct and the second air guide pipe. A lifting assembly is provided inside the purification chamber. The lifting assembly includes an electric push rod, which is fixedly connected to the purification chamber. A support plate is fixedly installed at the output end of the electric push rod.
[0007] By adopting the above technical solution, and by setting up an air circulation component, in which the air extraction head and air outlet head can be connected to both sides of the cold storage, the size of the second air duct can be customized according to the size of the cold storage. By turning on the fan, the air in the cold storage can be circulated through the purification box. The air can be dehumidified using a desiccant pack, and the air can be adsorbed using an activated carbon pack. The desiccant pack and the activated carbon pack can be separated by a mesh. By setting up a connecting component, the first air duct and the second air duct can be disassembled and installed. By setting up a lifting component, the tray can be moved upward by controlling the extension of the electric push rod, thereby pushing out the desiccant pack and the activated carbon pack for easy replacement.
[0008] Optionally, the output end of the fan is connected to the purification box, and the purification box is a metal box.
[0009] By adopting the above technical solution, the metal box ensures the strength of the cleanroom.
[0010] Optionally, the connecting assembly includes a first connecting flange and a second connecting flange, with two of each. The two first connecting flanges are fixedly connected to the first ventilation pipe and the second ventilation pipe, respectively, and the two second connecting flanges are fixedly connected to the first air guide pipe and the second air guide pipe, respectively.
[0011] By adopting the above technical solution and by setting the first connecting flange and the second connecting flange, the first ventilation pipe and the first air guide pipe, as well as the second ventilation pipe and the second air guide pipe, can be connected.
[0012] Optionally, the inner cavity of the first connecting flange is provided with a connecting bolt, and the surface of the connecting bolt is threaded with a connecting nut. Both the inner cavities of the first connecting flange and the second connecting flange are provided with through holes.
[0013] By adopting the above technical solution, a connecting bolt is inserted into the perforation, and a connecting nut is screwed onto the connecting bolt, thereby connecting the first connecting flange and the second connecting flange.
[0014] Optionally, the lifting assembly consists of two sets, and the pallet is made of corrosion-resistant plate.
[0015] By adopting the above technical solution, the two sets of lifting components can respectively push out the drying pack and activated carbon pack, making it easy to replace the drying pack and activated carbon pack, and the corrosion-resistant plate ensures the corrosion resistance of the tray.
[0016] Optionally, the top of the purification box is movably connected to a lid via a hinge, and a handle is provided on one side of the lid.
[0017] By adopting the above technical solution, the desiccant pack and activated carbon pack can be easily replaced by opening the box lid with a handle.
[0018] Optionally, mounting plates are fixedly installed around the perimeter of the purification box, and mounting holes are provided in the inner cavity of the mounting plates.
[0019] By adopting the above technical solution, bolts can be inserted into the mounting holes to fix the mounting plate, thereby enabling the installation of the device.
[0020] Optionally, the surfaces of the first ventilation pipe, the first air guide pipe, the second ventilation pipe, and the second air guide pipe are all covered with heat insulation sleeves, and the inner walls of the first ventilation pipe, the first air guide pipe, the second ventilation pipe, and the second air guide pipe are all coated with a corrosion-resistant coating.
[0021] By adopting the above technical solution, the insulation jacket can prevent heat loss, and the corrosion-resistant coating increases the corrosion resistance of the first ventilation pipe, the first air guide pipe, the second ventilation pipe, and the second air guide pipe.
[0022] In summary, this utility model has the following beneficial effects:
[0023] 1. This utility model incorporates an air circulation component, where the air extraction head and air outlet head can be connected to both sides of the cold storage. The size of the second air duct can be customized according to the size of the cold storage. By turning on the fan, the air in the cold storage can be circulated through the purification box. The air can be dehumidified using a desiccant pack, and the air can be adsorbed using an activated carbon pack. A mesh can separate the desiccant pack and the activated carbon pack. By incorporating a connecting component, the first and second air ducts can be disassembled and installed. By incorporating a lifting component, the extension of an electric push rod can push the tray upward, thereby ejecting the desiccant pack and activated carbon pack for easy replacement.
[0024] 2. The metal box of this utility model ensures the strength of the purification box. By setting the first connecting flange and the second connecting flange, the first ventilation pipe, the first air guide pipe, the second ventilation pipe, and the second air guide pipe can be connected. By inserting connecting bolts into the through holes and tightening the connecting nuts on the connecting bolts, the first connecting flange and the second connecting flange can be connected. Two sets of lifting components can respectively push out the drying pack and the activated carbon pack for easy replacement. The corrosion-resistant plate ensures the corrosion resistance of the tray. The box cover can be opened by the handle for easy replacement of the drying pack and the activated carbon pack. Bolts can be inserted into the mounting holes to fix the mounting plate, thereby allowing the device to be installed. The heat insulation sleeve can prevent heat loss. The corrosion-resistant coating increases the corrosion resistance of the first ventilation pipe, the first air guide pipe, the second ventilation pipe, and the second air guide pipe. Attached Figure Description
[0025] Figure 1 This is a schematic diagram of the structure of this utility model.
[0026] Figure 2This is an enlarged structural schematic diagram of point A of this utility model.
[0027] Figure 3 This is a schematic diagram of the structure on the right side of this utility model.
[0028] Figure 4 This is a schematic diagram of the internal structure of the purification box of this utility model.
[0029] Figure 5 This is a cross-sectional structural diagram of the purification box of this utility model.
[0030] Explanation of reference numerals in the attached figures:
[0031] 1. Air circulation assembly; 101. Purification chamber; 102. Chamber cover; 103. Fan; 104. First ventilation duct; 105. First air guide duct; 106. Exhaust head; 107. Second ventilation duct; 108. Second air guide duct; 109. Exhaust head; 2. Connecting assembly; 201. First connecting flange; 202. Second connecting flange; 203. Connecting bolt; 204. Connecting nut; 205. Perforation; 3. Lifting assembly; 301. Electric push rod; 302. Support plate; 4. Drying bag; 5. Activated carbon bag; 6. Partition mesh; 7. Mounting plate. Detailed Implementation
[0032] The following is in conjunction with the appendix Figure 1-5 This application will be described in further detail.
[0033] Example 1:
[0034] Please refer to Figure 1-5An air circulation system for cold storage includes an air circulation component 1, which includes a purification chamber 101. A mesh 6 is fixedly installed inside the purification chamber 101. A drying pack 4 is disposed on one side of the mesh 6, and an activated carbon pack 5 is disposed on the other side of the mesh 6. A fan 103 is fixedly installed on one side of the purification chamber 101. The input end of the fan 103 is connected to a first ventilation pipe 104. One end of the first ventilation pipe 104 is connected to a first air guide pipe 105, and one end of the first air guide pipe 105 is connected to an exhaust head 106. The other end of the purification chamber 101 is connected to a second ventilation pipe 107. One end of the second ventilation pipe 107 is connected to a second air guide pipe 108, and one end of the second air guide pipe 108 is connected to an exhaust head 109. The output end of the fan 103 is connected to the purification chamber 101. The purification box 101 is a metal box. The top of the purification box 101 is movably connected to the box cover 102 by a hinge, and a handle is provided on one side of the box cover 102. Mounting plates 7 are fixedly installed on all four sides of the purification box 101, and mounting holes are opened in the inner cavity of the mounting plates 7. The surfaces of the first ventilation pipe 104, the first air guide pipe 105, the second ventilation pipe 107, and the second air guide pipe 108 are all covered with heat insulation sleeves, and the inner walls of the first ventilation pipe 104, the first air guide pipe 105, the second ventilation pipe 107, and the second air guide pipe 108 are all coated with a corrosion-resistant coating. The inner cavity of the purification box 101 is provided with a lifting assembly 3, which includes an electric push rod 301. The electric push rod 301 is fixedly connected to the purification box 101, and a support plate 302 is fixedly installed at the output end of the electric push rod 301.
[0035] In this embodiment: an air circulation component 1 is provided, wherein the exhaust head 106 and the exhaust head 109 can be connected to both sides of the cold storage. The size of the second air duct 108 can be customized according to the size of the cold storage. By turning on the fan 103, the air in the cold storage can be circulated through the purification box 101. The air can be dehumidified using the drying pack 4, and the activated carbon pack 5 can adsorb harmful substances in the air. The mesh 6 can separate the drying pack 4 and the activated carbon pack 5. A lifting component 3 is provided, wherein the electric push rod 301 can be extended to push... The movable support plate 302 moves upward, thereby ejecting the drying pack 4 and activated carbon pack 5 for easy replacement. The metal box ensures the strength of the purification box 101. The box cover 102 can be opened by the handle for easy replacement of the drying pack 4 and activated carbon pack 5. Bolts can be inserted into the mounting holes to fix the mounting plate 7, thereby allowing the device to be installed. The insulation sleeve can prevent heat loss. The corrosion-resistant coating increases the corrosion resistance of the first ventilation pipe 104, the first air guide pipe 105, the second ventilation pipe 107, and the second air guide pipe 108.
[0036] Example 2:
[0037] Reference Figure 1-5A connecting assembly 2 is provided between the first ventilation pipe 104 and the first air guide pipe 105, and between the second ventilation pipe 107 and the second air guide pipe 108. The connecting assembly 2 includes a first connecting flange 201 and a second connecting flange 202. There are two first connecting flanges 201 and two connecting flanges 202. The two first connecting flanges 201 are fixedly connected to the first ventilation pipe 104 and the second ventilation pipe 107, respectively. The two second connecting flanges 202 are fixedly connected to the first air guide pipe 105 and the second air guide pipe 108, respectively. A connecting bolt 203 is provided in the inner cavity of the first connecting flange 201. A connecting nut 204 is threaded onto the surface of the connecting bolt 203. A through hole 205 is provided in the inner cavity of both the first connecting flange 201 and the second connecting flange 202.
[0038] In this embodiment: by setting the connecting component 2, and by setting the first connecting flange 201 and the second connecting flange 202, the first ventilation pipe 104, the first air guide pipe 105, the second ventilation pipe 107, and the second air guide pipe 108 can be connected. By inserting the connecting bolt 203 into the through hole 205 and screwing the connecting nut 204 onto the connecting bolt 203, the first connecting flange 201 and the second connecting flange 202 can be connected.
[0039] The implementation principle of this utility model is as follows: When in use, bolts are inserted into the mounting holes to fix the mounting plate 7, thereby allowing the device to be installed. The air extraction head 106 and the air outlet head 109 can be connected to both sides of the cold storage. The size of the second air guide pipe 108 can be customized according to the size of the cold storage. When the fan 103 is turned on, the air extraction head 106 can draw air from the cold storage. The air is sent into the purification box 101 by the fan 103 along the first air guide pipe 105 and the first ventilation pipe 104. The drying pack 4 can dehumidify the air, and the activated carbon pack 5 can adsorb harmful substances in the air. The air returns to the cold storage along the second ventilation pipe 107 and the second air guide pipe 108 through the air outlet head 109. When the box cover 102 is opened, the two electric push rods 301 are extended to push the two trays 302 upward, which can push out the drying pack 4 and the activated carbon pack 5 for easy replacement.
[0040] The above are all preferred embodiments of this utility model, and are not intended to limit the scope of protection of this utility model. Therefore, all equivalent changes made to the structure, shape and principle of this utility model should be covered within the scope of protection of this utility model.
Claims
1. An air circulation system for cold stores comprising an air circulation assembly (1), characterized in that: The air circulation assembly (1) includes a purification box (101). A mesh (6) is fixedly installed inside the purification box (101). A drying pack (4) is provided on one side of the mesh (6), and an activated carbon pack (5) is provided on the other side of the mesh (6). A fan (103) is fixedly installed on one side of the purification box (101). The input end of the fan (103) is connected to a first ventilation pipe (104). One end of the first ventilation pipe (104) is connected to a first air guide pipe (105). One end of the first air guide pipe (105) is connected to an air extraction head (106). The other end of the purification box (101) is connected to a second ventilation pipe (105). 107), one end of the second ventilation pipe (107) is connected to the second air guide pipe (108), one end of the second air guide pipe (108) is connected to the air outlet (109), and connecting components (2) are provided between the first ventilation pipe (104) and the first air guide pipe (105) and between the second ventilation pipe (107) and the second air guide pipe (108). The inner cavity of the purification box (101) is provided with a lifting component (3), and the lifting component (3) includes an electric push rod (301). The electric push rod (301) is fixedly connected to the purification box (101), and a support plate (302) is fixedly installed at the output end of the electric push rod (301).
2. The air circulation system for cold storage according to claim 1, characterized in that: The output end of the fan (103) is connected to the purification box (101), which is a metal box.
3. The air circulation system for cold storage according to claim 1, characterized in that: The connecting assembly (2) includes a first connecting flange (201) and a second connecting flange (202). There are two of each of the first connecting flange (201) and the second connecting flange (202). The two first connecting flanges (201) are fixedly connected to the first ventilation pipe (104) and the second ventilation pipe (107), respectively. The two second connecting flanges (202) are fixedly connected to the first air guide pipe (105) and the second air guide pipe (108), respectively.
4. The air circulation system for cold storage according to claim 3, characterized in that: The inner cavity of the first connecting flange (201) is provided with a connecting bolt (203), and the surface of the connecting bolt (203) is threaded with a connecting nut (204). The inner cavities of the first connecting flange (201) and the second connecting flange (202) are both provided with through holes (205).
5. The air circulation system for cold storage according to claim 1, characterized in that: The lifting assembly (3) consists of two sets, and the pallet (302) is a corrosion-resistant plate.
6. The air circulation system for a cold storage according to claim 1, wherein: The top of the purification box (101) is movably connected to the box cover (102) by a hinge, and a handle is provided on one side of the box cover (102).
7. The air circulation system for cold storage according to claim 1, characterized in that: The purification box (101) is fixedly installed with mounting plates (7) on all four sides, and the inner cavity of the mounting plates (7) is provided with mounting holes.
8. The air circulation system for cold storage according to claim 1, characterized in that: The surfaces of the first ventilation pipe (104), the first air guide pipe (105), the second ventilation pipe (107), and the second air guide pipe (108) are all covered with heat insulation sleeves, and the inner walls of the first ventilation pipe (104), the first air guide pipe (105), the second ventilation pipe (107), and the second air guide pipe (108) are all coated with corrosion-resistant coatings.