Air convection cooling device
Through the closed negative pressure return air zone and orderly air flow path design, the problem of air flow crosstalk in the existing cooling system is solved, and efficient material cooling and freshness guarantee is achieved.
Patent Information
- Application Number
- CN202422301346.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-20
- Publication Date
- 2025-08-01
- Estimated Expiration
- 2034-09-20
AI Technical Summary
The existing convection cooling systems are mostly open-type designs, and the lack of channels limits the airflow, resulting in low cooling efficiency and easy airflow crosstalk between materials.
The closed negative pressure return air zone and an ordered air flow path design are adopted, and the air is driven to circulate between the negative pressure return air zone and the storage area through a cooler, combining horizontal partitions and mediasal plates to separate the shelf truck passages to ensure the order of airflow and material separation.
It improves cooling efficiency, enhances the refrigeration effect of materials, and ensures air exchange by mixing fresh air from outside, and maintains the freshness of materials.
Smart Images
Figure CN223179119U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of refrigeration, in particular to an air convection cooling device. Background Art
[0002] Using air in a low-temperature environment as a medium to cool materials is a commonly used method for material cooling. According to the driving situation of air flow, the cooling process can be divided into natural convection cooling and forced convection cooling; according to the organization form of air flow during the cooling process, the cooling process can be divided into disordered flow and ordered flow. According to basic theories and practical experience, the cooling effect of the ordered forced convection cooling method is better than that of natural convection and disordered flow. Common forced convection and ordered air flow cooling methods include air cooler cooling, differential pressure cooling, etc.
[0003] Although the currently common convection cooling systems can also achieve air flow circulation, most of them are of an open design, lacking channels to further restrict the air flow, which affects the cooling efficiency. In addition, there is a lack of separation between materials, which easily leads to air flow crosstalk. Summary of the Utility Model
[0004] In view of the above-mentioned disadvantages of the prior art, the utility model provides an air convection cooling device, including a structural framework, the upper part and the lower part of the structural framework are separated by a horizontal partition board, a cold air blower is installed on the upper part of the structural framework, and a storage area is arranged at the lower part of the structural framework;
[0005] A closed negative pressure return air area is arranged at the rear of the structural framework, and both the upper part and the lower part of the structural framework are communicated with the negative pressure return air area. The storage area protrudes forward from the upper part of the structural framework. The storage area includes a plurality of shelf truck channels arranged in the left-right direction, and adjacent shelf truck channels are separated by longitudinal partition boards; air rises from the bottom of the negative pressure return air area under the drive of the cold air blower, is cooled and then blown out from the front of the cold air blower, then enters the storage area from the front entrance of the storage area, and finally flows into the negative pressure return air area to complete the refrigeration cycle of the materials in the storage area.
[0006] Optionally, the shelf truck channels are used for placing shelf trucks, and the shelf trucks enter and exit through the front entrance of the shelf truck channels.
[0007] Optionally, the shelf trucks are provided with multiple layers of trays for placing materials, and a gap is left between adjacent trays to allow air flow to pass through.
[0008] Optionally, the cold air blower includes a heat exchanger and a circulation fan. A flowing low-temperature medium is introduced into the tubes of the heat exchanger, and air flows outside the tubes of the heat exchanger under the drive of the circulation fan and is cooled, and then enters the shelf truck channels from the front entrance of the storage area.
[0009] Optionally, an air return grille is provided at the interface between the lower part of the structural framework and the negative pressure air return area.
[0010] Optionally, a plurality of limit anti-collision bars are fixed on the surface of the air return grille away from the negative pressure air return area.
[0011] Optionally, a sealing strip is provided at the connection between the air cooler and the structural framework.
[0012] Optionally, an independent wind baffle is provided at the entrance of each of the shelving vehicle channels.
[0013] Optionally, the wind baffle is an integral wind baffle or a segmented wind baffle.
[0014] Optionally, at least two of the air convection cooling devices are arranged in the left-right direction.
[0015] As described above, the present utility model provides an air convection cooling device, which includes a structural framework. The upper part and the lower part of the structural framework are separated by a horizontal partition. A cold air blower and a storage area are respectively provided in the upper part and the lower part of the structural framework. A closed negative pressure air return area is provided at the rear of the structural framework. The upper part and the lower part of the structural framework are both connected to the negative pressure air return area. The storage area and the negative pressure air return area serve as circulation channels, which can appropriately limit the flow trajectory of air, enhance the orderliness of the air flow, and improve the refrigeration efficiency of the materials in the storage area. At the same time, it is defined that the storage area protrudes forward from the upper part of the structural framework, so that the cold air flowing out from the front of the cold air blower enters the storage area after passing through a short distance. In this way, a certain distance is left to mix in some outside fresh air, which can enhance the orderliness of the air flow while ensuring air exchange. In practical applications, several devices can be modularly combined and installed, so as to realize the expansion of the processing capacity in the width direction, and has the advantages of simple structure, modularity, easy standardization, and convenient operation. Description of the Drawings
[0016] Figure 1 It shows a side view structural schematic diagram of the air convection cooling device in the first embodiment of the present utility model.
[0017] Figure 2 It shows a front view structural schematic diagram of the air convection cooling device in the first embodiment of the present utility model.
[0018] Figure 3 It shows a three-dimensional structural schematic diagram of the air convection cooling device in the first embodiment of the present utility model.
[0019] Figure 4 It shows a side view structural schematic diagram of the shelving vehicle channel after being lengthened in the first embodiment of the present utility model.
[0020] Figure 5It shows a front view structural schematic diagram after the combination of two air convection cooling devices in the first embodiment of the present utility model.
[0021] Element number description
[0022] 1 Structure frame
[0023] 2 Limit anti-collision strip
[0024] 3 Return air grille
[0025] 4 Circulation fan
[0026] 5 Cold air blower
[0027] 6 Heat exchanger
[0028] 7 Sealing strip
[0029] 8 Negative pressure return air area
[0030] 9 Shelf truck passage
[0031] 10 Shelf truck
[0032] 11 Integral wind deflector
[0033] 12 Split wind deflector
[0034] 21 Horizontal partition
[0035] 22 Vertical partition
[0036] 91 Shelf truck passage Specific implementation manner
[0037] The following illustrates the implementation manner of the present utility model through specific specific examples. Those skilled in the art can easily understand other advantages and effects of the present utility model from the content disclosed in this specification. The present utility model can also be implemented or applied through different specific implementation manners. Various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of the present utility model.
[0038] It should be noted that the illustrations provided in this embodiment only schematically illustrate the basic concept of the present utility model. Therefore, only the components related to the present utility model are shown in the illustrations, rather than being drawn according to the number, shape, and size of the components in actual implementation. The type, quantity, and ratio of each component in actual implementation can be arbitrarily changed, and the component layout type may also be more complex.
[0039] Embodiment 1
[0040] As Figures 1 to 3 shown, this embodiment provides an air convection cooling device, including:
[0041] A structural framework 1, the upper and lower parts of the structural framework are separated by a horizontal partition 21, a cold air blower 5 is installed on the upper part of the structural framework 1, and a storage area 9 is provided in the lower part of the structural framework 1; a closed negative pressure return air area 8 is provided at the rear of the structural framework 1; both the upper and lower parts of the structural framework 1 are communicated with the negative pressure return air area. Air rises from the bottom of the negative pressure return air area 8 under the drive of the cold air blower 5, is cooled and then blown out from the front of the cold air blower 5, then enters the storage area 9 from the front entrance of the storage area 9, and finally flows into the negative pressure return air area 8 to complete the refrigeration cycle.
[0042] The storage area 9 and the negative pressure return air area 8, as circulation channels, can appropriately limit the flow trajectory of air, enhance the orderliness of air flow, and improve the refrigeration efficiency of the materials in the storage area 9. At the same time, the entire air channel should not be too closed. Therefore, it is defined that the length of the lower part of the structural framework 1 in the front-rear direction is greater than the length of the upper part of the structural framework 1 in the front-rear direction, that is, the storage area 9 protrudes forward from the upper part of the structural framework 1, so that the cold air flowing out from the front of the cold air blower 5 enters the storage area 9 after a short distance. In this way, a certain distance is left to mix in some outside fresh air to achieve air exchange. In this way, when fruits and vegetables and other agricultural products are placed in the storage area 9, the freshness of the fruits and vegetables placed in the storage area 9 can be guaranteed. In addition, since cold air has a large density, the cold air blown out from the front of the cold air blower 5 will naturally sink downward into the storage area 9 without additional diversion.
[0043] Further, the storage area 9 includes a plurality of shelf truck channels 91 arranged in the left-right direction, and adjacent shelf truck channels 91 are separated by a longitudinal partition 22 to prevent cross-flow; the shelf truck channels 91 are used to place shelf trucks 10 and also serve as air circulation air ducts at the same time. The cross-section of the shelf truck channel matches the size of the shelf truck 10, and the length of the shelf truck channel in the front-rear direction can be adjusted according to the number of shelf trucks 10; the shelf trucks 10 enter and exit through the front entrance.
[0044] The shelf truck 10 is provided with a plurality of trays stacked in the upper and lower layers to place materials, and a gap is left between adjacent trays to allow air flow to pass through. The trays are preferably perforated trays with ventilation holes to increase the air permeability of the tray surface and prevent the materials from getting damp and mildewing during long-term storage.
[0045] Further, the cold air blower 5 includes a heat exchanger 6 and a circulation fan 4. A flowing low-temperature medium such as cooling water is introduced into the tubes of the heat exchanger 6. Air flows through the outside of the tubes of the heat exchanger 6 under the drive of the circulation fan 4 and is cooled, and then enters the shelf truck channel from the front entrance of the storage area 9.
[0046] Further, a return air grille 3 is provided at the interface between the lower part of the structural frame 1 and the negative pressure return air area 8 to filter sundries; a plurality of limit anti-collision strips 2 are fixed on the surface of the return air grille 3 away from the negative pressure return air area 8 to prevent the goods shelf truck 10 from colliding with the return air grille 3.
[0047] Further, a sealing strip 7 is provided at the connection between the air cooler 5 and the structural frame 1 to ensure a certain degree of sealing.
[0048] Further, an independent wind baffle is provided at the entrance of each goods shelf truck passage. The wind baffle can be an integral wind baffle 11 or a segmented wind baffle 12. The segmented wind baffle 12 includes multiple spliced structural plates, and any structural plate can be taken, so as to flexibly adjust the opening and closing degree of the entrance of the goods shelf truck passage. The wind baffle can be connected to the edge of the entrance of the goods shelf truck passage through a hinge structure to open the wind baffle by rotating the hinge; or connected in a snap-fastener form for easy complete removal.
[0049] The operation process of the above air convection cooling device is as follows:
[0050] Uniformly load the materials onto the trays of the goods shelf trucks 10 and push them into the goods shelf truck passages 91 one by one. Several goods shelf trucks 10 can be placed in each goods shelf truck passage 91. When placing, all the goods shelf truck passages can be used, or only some of them can be used. In the used goods shelf truck passages, the number of goods shelf trucks should be kept as the same as possible to make the air flow distribution uniform among the goods shelf truck passages, and adjust the length of the goods shelf truck passage to be the same as the total length of the goods shelf trucks in the passage. As Figure 4 shown, the length of the goods shelf truck passage can be appropriately lengthened or shortened as needed; the unused goods shelf truck passages should be blocked at the entrance with wind baffles.
[0051] Start the circulation fan 4 of the air cooler 5, and introduce a flowing low-temperature medium inside the tubes of the heat exchanger 6. The air flows over the outside of the tubes of the heat exchanger 6 under the drive of the circulation fan 4 and is cooled, and then enters the goods shelf truck passages with the entrances not blocked by the wind baffles from the front of the goods shelf truck passages. The air flows orderly between the inside of the goods shelf truck passage and the materials on the shelves of the goods shelf trucks 10 and exchanges heat with the materials on the goods shelf trucks 10 to achieve the effect of cooling the materials. The orderly flowing air enters the negative pressure return air area 8 through the return air grille 3 and is then sucked in by the air cooler 5 again to complete the orderly circulation of the air.
[0052] The limit anti-collision strip 2 can limit the impact of the goods shelf truck when it is pushed in and prevent the return air grille 3 from being damaged.
[0053] As another implementation scheme, a flowing high-temperature medium can also be introduced inside the tubes of the heat exchanger 6, and then this device can be used for forced air convection heating of the materials with orderly air flow organization.
[0054] Meanwhile, several such devices can be modularly assembled and installed. For example, Figure 5 as shown, at least two of the air convection cooling devices are arranged in the left - right direction, so as to expand the processing capacity in the width direction. In addition, two devices can be assembled back - to - back, that is, the two air convection cooling devices are symmetrically arranged front - to - back, as long as it is ensured that the passage of the shelf truck is not blocked.
[0055] In summary, the present utility model provides an air convection cooling device, which includes a structural frame. The upper part and the lower part of the structural frame are separated by a horizontal partition. A cold air blower and a storage area are respectively provided in the upper part and the lower part of the structural frame; a closed negative - pressure return air area is provided at the rear of the structural frame; the upper part and the lower part of the structural frame are both communicated with the negative - pressure return air area. The storage area and the negative - pressure return air area serve as circulation channels, which can appropriately limit the flow track of air, enhance the orderliness of air flow, and improve the refrigeration efficiency of the materials in the storage area. At the same time, it is defined that the storage area protrudes forward from the upper part of the structural frame, so that the cold air flowing out from the front of the cold air blower enters the storage area after flowing through a short distance, leaving a certain distance to mix in some outside fresh air, which can enhance the orderliness of air flow while ensuring air exchange. In practical applications, several devices can be modularly assembled and installed, so as to expand the processing capacity in the width direction, and it has the advantages of simple structure, modularity, easy standardization, convenient operation, etc.
[0056] The above - mentioned embodiments are only used to illustrate the principle and its effects of the present utility model, rather than to limit the present utility model. Any person familiar with this technology can modify or change the above - mentioned embodiments without departing from the spirit and scope of the present utility model. Therefore, all equivalent modifications or changes completed by those with ordinary knowledge in the technical field without departing from the spirit and technical idea disclosed by the present utility model should still be covered by the claims of the present utility model.
Claims
1. An air convection cooling device, characterized in that, It includes a structural framework, the upper and lower parts of which are separated by a horizontal partition board. A cooling fan is installed on the upper part of the structural framework, and a storage area is provided in the lower part of the structural framework. A closed negative-pressure return air area is provided at the rear of the structural framework. The upper and lower parts of the structural framework are both connected to the negative-pressure return air area. The storage area protrudes forward from the upper part of the structural framework. The storage area includes a plurality of shelf truck channels arranged in the left-right direction, and adjacent shelf truck channels are separated by longitudinal partition boards. Air rises from the bottom of the negative-pressure return air area under the drive of the cooling fan, is cooled and then blown out from the front of the cooling fan, then enters the storage area from the front entrance of the storage area, and finally flows into the negative-pressure return air area to complete the refrigeration cycle of the materials in the storage area.
2. The air convection cooling device according to claim 1, wherein: The shelf truck channels are used to place shelf trucks, and the shelf trucks enter and exit through the front entrances of the shelf truck channels.
3. The air convection cooling device according to claim 2, wherein: Multiple layers of trays are placed on the shelf trucks to place materials, and gaps are left between adjacent trays to allow air flow to pass through.
4. The air convection cooling device according to claim 1, characterized in that: The cooling fan includes a heat exchanger and a circulation fan. A flowing medium is introduced into the tubes of the heat exchanger. Air flows outside the tubes of the heat exchanger under the drive of the circulation fan and exchanges heat with the medium, and then enters the shelf truck channels from the front entrance of the storage area.
5. The air convection cooling device according to claim 1, characterized in that: A return air grille is provided at the interface between the lower part of the structural framework and the negative-pressure return air area.
6. The air convection cooling device according to claim 5, wherein: Multiple limiting anti-collision strips are fixed on the surface of the return air grille away from the negative-pressure return air area.
7. The air convection cooling device according to claim 1, wherein: A sealing strip is provided at the connection between the cooling fan and the structural framework.
8. The air convection cooling device according to claim 1, characterized in that: Independent windshields are provided at the entrances of each of the shelf truck channels.
9. The air convection cooling device according to claim 8, wherein: The windshields are integral windshields or segmented windshields.
10. The air convection cooling device according to claim 1, wherein: At least two of the air convection cooling devices are arranged in the left-right direction.