Temperature control equipment for keeping food freeze-drying
By designing heat preservation and shielding devices, the problem of insufficient heat exchange in traditional food freeze-drying equipment is solved, achieving stable temperature control and simplified operation, thus improving the preservation effect of freeze-dried food.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- DALIAN ICEBERG FREEZE DRYING TECH
- Filing Date
- 2025-05-15
- Publication Date
- 2026-04-17
AI Technical Summary
Traditional freeze-drying equipment cannot effectively reduce heat exchange, leading to temperature fluctuations that affect food quality and shelf life. In addition, it is complex to operate, has limited heat preservation performance, and increases operating costs and manpower burden.
A temperature control device including an insulation device and a shielding device was designed. By injecting a low-temperature calcium chloride aqueous solution and an air tank design, heat exchange is reduced, and the insulation performance is enhanced by the shielding device, providing stable temperature control conditions.
It effectively reduces heat exchange between freeze-dried food and the outside environment, provides stable and reliable temperature control conditions, slows down temperature changes, maintains the low-temperature environment required for freeze-drying food, improves preservation quality, and simplifies operation.
Smart Images
Figure CN224136158U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of food processing technology, specifically to a temperature control device for maintaining freeze-dried food. Background Technology
[0002] In the field of freeze-drying food preservation, maintaining a stable low-temperature environment is crucial. However, traditional freeze-drying methods have many problems. On the one hand, many devices cannot effectively reduce the heat exchange between freeze-dried food and the outside world. Changes in the ambient temperature can cause temperature fluctuations in freeze-dried food, affecting its quality and shelf life. On the other hand, some devices are complex to operate, which is not conducive to daily use and maintenance, increasing the cost and manpower burden. Moreover, some devices have limited insulation performance, making it difficult to maintain the low-temperature environment required for freeze-drying food for a long time, which makes freeze-dried food prone to deterioration during preservation. Utility Model Content
[0003] (a) Technical problems to be solved
[0004] To address the shortcomings of existing technologies, this utility model provides a temperature control device for freeze-drying food. The heat preservation device of this device can effectively reduce the heat exchange between freeze-dried food and the outside environment, and is easy to operate, providing stable and reliable temperature control conditions for freeze-drying food. At the same time, the shielding device and the heat preservation device work together to further improve the heat preservation performance, delay the time of temperature change, better maintain the low temperature environment required for freeze-drying food, and meet the requirements of freeze-drying food preservation for a stable low temperature environment.
[0005] (II) Technical Solution
[0006] To achieve the above objectives, this utility model provides the following technical solution: a temperature control device for preserving freeze-dried food, comprising: a heat preservation device, wherein a placement device is fixedly connected to the outer wall of the heat preservation device; a placement device for placing freeze-dried food; and a shielding device for assisting the heat preservation device in its heat preservation operation, wherein the outer wall of the shielding device is inserted into the outer wall of the placement device; the heat preservation device includes a shell, wherein a rotating ring is rotatably connected to the outer wall of the top of the shell, an inlet pipe is fixedly connected to the inner wall of the top of the shell, a wooden plug is inserted into the inner wall of the inlet pipe, an outlet pipe is fixedly connected to the inner wall of the bottom of the shell, a threaded cap is threadedly connected to the outer wall of the outlet pipe, an air groove is formed in the wall of the shell, a placement box is fixedly connected to the inner wall of the shell, and an arc-shaped baffle is provided on the outside of the placement box, wherein the outer wall of the arc-shaped baffle is fixedly connected to the inner side wall of the shell. By setting up the heat preservation device, the heat exchange between the freeze-dried food and the outside environment is reduced, and the device is easy to operate, providing stable and reliable temperature control conditions for the preservation of freeze-dried food.
[0007] Preferably, the placement device includes a fixing box, a connecting block is fixedly connected to the outer wall of the fixing box, a placement box is fixedly connected to the outer wall of the connecting block, a friction groove is formed on the outer wall of the bottom of the placement box, and the outer wall of the fixing box is fixedly connected to the side wall inside the placement box.
[0008] Preferably, the shielding device includes a cover plate, a handle is fixedly connected to the outer wall of the top of the cover plate, a heat-insulating groove is formed in the wall of the cover plate, and a plug-in block is fixedly connected to the outer wall of the bottom of the cover plate. The outer wall of the plug-in block is inserted into the outer wall of the connecting block, and the outer wall of the cover plate is slidably connected to the outer wall of the outer shell. By combining the shielding device with the heat-insulating device, the heat preservation performance is further improved, the temperature change time is delayed, and thus the low-temperature environment required for freeze-drying food is maintained.
[0009] (III) Beneficial Effects
[0010] This invention provides a temperature control device for freeze-drying food. It has the following beneficial effects:
[0011] (i) The temperature control equipment for freeze-drying food reduces heat exchange between freeze-dried food and the outside world by setting up a heat preservation device. At the same time, it is easy to operate and provides stable and reliable temperature control conditions for the preservation of freeze-dried food.
[0012] (ii) The temperature control equipment for freeze-drying food further improves the heat preservation performance and delays the temperature change time by using a shielding device in conjunction with a heat preservation device, thereby maintaining the low temperature environment required for freeze-drying food. Attached Figure Description
[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0014] Figure 2 This is a schematic diagram of the overall internal structure of this utility model;
[0015] Figure 3 This is a schematic diagram of the structure of the heat preservation device of this utility model;
[0016] Figure 4 This is a top view of the internal structure of the heat preservation device of this utility model;
[0017] Figure 5 This is a partial structural diagram of the fixing box of this utility model.
[0018] In the diagram: 1. Insulation device; 2. Shielding device; 3. Placement device; 11. Outer shell; 12. Rotating ring; 13. Liquid inlet pipe; 14. Cork; 15. Liquid outlet pipe; 16. Threaded cap; 17. Air tank; 18. Placement box; 19. Arc-shaped baffle; 21. Cover plate; 22. Handle; 23. Insulation tank; 24. Insertion block; 31. Fixing box; 32. Connecting block; 33. Placement box; 34. Friction groove. Detailed Implementation
[0019] 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.
[0020] Please see Figure 1-5 This utility model provides a technical solution: a temperature control device for maintaining freeze-dried food, comprising: a heat preservation device 1, with a placement device 3 fixedly connected to the outer wall of the heat preservation device 1; the placement device 3 is used to place freeze-dried food; a shielding device 2 is used to assist the heat preservation device 1 in heat preservation operation, and the outer wall of the shielding device 2 is inserted into the outer wall of the placement device 3; the heat preservation device 1 includes a shell 11, with a rotating ring 12 rotatably connected to the outer wall of the top of the shell 11, a liquid inlet pipe 13 fixedly connected to the inner wall of the top of the shell 11, a wooden plug 14 inserted into the inner wall of the liquid inlet pipe 13, and a liquid outlet pipe 15 fixedly connected to the inner wall of the bottom of the shell 11, with a threaded cap 16 threadedly connected to the outer wall of the liquid outlet pipe 15; the shell 11... An air groove 17 is provided in the wall of the housing 11. A mounting box 18 is fixedly connected to the inner wall of the housing 11. An arc-shaped baffle 19 is provided on the outside of the mounting box 18. The outer wall of the arc-shaped baffle 19 is fixedly connected to the inner side wall of the housing 11. The liquid inlet pipe 13 of the heat preservation device 1 is used to inject a calcium chloride aqueous solution with a concentration of 29% at -50 degrees Celsius. The solution can be injected by opening the wooden stopper 14. After injection, the wooden stopper 14 is closed to prevent the liquid from flowing out. The liquid outlet pipe 15 is used to discharge the liquid. When discharge is required, the threaded cap 16 is unscrewed. The air groove 17 can play a certain role in heat insulation and reduce heat exchange. The mounting box 18 is used to fix the mounting box 31 of the device 3. The arc-shaped baffle 19 can further assist in heat insulation. The rotating ring 12 can be easily lifted and moved by the user.
[0021] The placement device 3 includes a fixed box 31, a connecting block 32 is fixedly connected to the outer wall of the fixed box 31, and a placement box 33 is fixedly connected to the outer wall of the connecting block 32. A friction groove 34 is provided on the outer wall of the bottom of the placement box 33. The outer wall of the fixed box 31 is fixedly connected to the side wall inside the placement box 18. When the freeze-dried food is placed in the placement box 33 of the placement device 3, the friction groove 34 can increase the friction force and prevent the freeze-dried food from sliding excessively and being damaged by impact.
[0022] The shielding device 2 includes a cover plate 21. A handle 22 is fixedly connected to the outer wall of the top of the cover plate 21. An insulation groove 23 is provided in the wall of the cover plate 21. An insertion block 24 is fixedly connected to the outer wall of the bottom of the cover plate 21. The outer wall of the insertion block 24 is inserted into the outer wall of the connecting block 32. The outer wall of the cover plate 21 is slidably connected to the outer wall of the outer shell 11. The cover plate 21 of the shielding device 2 can be lifted or lowered by the handle 22. The insulation groove 23 enhances the insulation effect. Lowering the cover plate 21 allows the insertion block 24 to be inserted into the connecting block 32. At this time, the cover plate 21 is slidably connected to the outer wall of the outer shell 11, which plays an auxiliary role in insulation and reduces heat loss.
[0023] When using the temperature control equipment for freeze-drying food, first place the freeze-dried food in the placement box 33 of the placement device 3. The friction groove 34 can increase the friction force to prevent the freeze-dried food from sliding excessively and being damaged by impact. The liquid inlet pipe 13 of the heat preservation device 1 is used to inject a calcium chloride aqueous solution with a concentration of 29% at -50 degrees Celsius. The wooden stopper 14 can be opened to inject the solution. After injection, the wooden stopper 14 is closed to prevent the liquid from flowing out. The liquid outlet pipe 15 is used to discharge the liquid. When discharge is required, the threaded cap 16 is unscrewed. The air groove 17 can play a certain role in heat insulation and reduce heat exchange. The placement box 18 fixes the fixing box 31 of the placement device 3. The arc-shaped baffle 19 can further assist in heat insulation. The rotating ring 12 can make it easy for the user to lift and move the food.
[0024] The cover plate 21 of the shielding device 2 can be lifted or lowered by the handle 22. The heat preservation tank 23 enhances the heat preservation effect. Lowering the cover plate 21 allows the plug block 24 to be inserted into the connecting block 32. At this time, the cover plate 21 is slidably connected to the outer wall of the outer shell 11, which plays an auxiliary heat preservation role, reduces heat loss, and further assists the heat preservation device 1 in preserving the freeze-dried food.
[0025] The overall advantage of this equipment is that, by injecting a low-temperature calcium chloride aqueous solution in combination with the design of the air tank 17 and the heat preservation tank 23, it can effectively maintain the low-temperature environment required for freeze-drying food. If the temperature fluctuates greatly during the transfer of freeze-dried food, it may cause the ice crystals to melt, damaging the microstructure of the food and affecting its rehydration and taste. This equipment improves the preservation quality during transfer, allows for flexible injection and discharge of liquids, and facilitates the maintenance and use of the equipment. The design of the shielding device 2 further enhances the heat preservation performance and is easy to operate, providing stable and reliable temperature control conditions for the preservation of freeze-dried food.
[0026] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.
[0027] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A temperature-controlled apparatus for holding food products for lyophilization, characterized by, include: The heat preservation device (1) has a placement device (3) fixedly connected to its outer wall. Placement device (3), the placement device (3) is used to place freeze-dried food; A shielding device (2) is used to assist the heat preservation device (1) in heat preservation operation. The outer wall of the shielding device (2) is inserted into the outer wall of the placement device (3). The heat preservation device (1) includes an outer shell (11), a rotating ring (12) is rotatably connected to the outer wall of the top of the outer shell (11), an inlet pipe (13) is fixedly connected to the inner wall of the top of the outer shell (11), a wooden plug (14) is inserted into the inner wall of the inlet pipe (13), an outlet pipe (15) is fixedly connected to the inner wall of the bottom of the outer shell (11), a threaded cap (16) is threadedly connected to the outer wall of the outlet pipe (15), an air groove (17) is opened in the wall of the outer shell (11), a mounting box (18) is fixedly connected to the inner wall of the outer shell (11), and an arc-shaped baffle (19) is provided on the outside of the mounting box (18).
2. A temperature-controlled apparatus for maintaining a food product in a freeze-dried state according to claim 1, wherein: The outer wall of the arc-shaped baffle (19) is fixedly connected to the inner side wall of the outer shell (11).
3. The temperature control device for maintaining freeze-dried food according to claim 1, characterized in that: The placement device (3) includes a fixed box (31), a connecting block (32) is fixedly connected to the outer wall of the fixed box (31), and a placement box (33) is fixedly connected to the outer wall of the connecting block (32). A friction groove (34) is provided on the outer wall of the bottom of the placement box (33).
4. A temperature-controlled apparatus for holding food for lyophilization as defined in claim 3, wherein: The outer wall of the fixing box (31) is fixedly connected to the side wall inside the placement box (18).
5. A temperature controlled apparatus for maintaining food in a freeze dried state according to claim 3, wherein: The shielding device (2) includes a cover plate (21), a handle (22) is fixedly connected to the outer wall of the top of the cover plate (21), a heat insulation groove (23) is opened in the wall of the cover plate (21), and a plug block (24) is fixedly connected to the outer wall of the bottom of the cover plate (21).
6. A temperature-controlled apparatus for holding food for lyophilization as defined in claim 5, wherein: The outer wall of the plug-in block (24) is plugged into the outer wall of the connecting block (32), and the outer wall of the cover plate (21) is slidably connected to the outer wall of the outer shell (11).