Energy-saving vacuum freeze drying equipment
By adopting a batch-by-batch ice melting method in the vacuum freeze-drying equipment, the energy loss problem caused by the shared opening and closing door of the collector in traditional equipment is solved, and the high-efficiency operation and energy-saving effect of the equipment are achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-08
- Publication Date
- 2026-03-31
AI Technical Summary
In traditional vacuum freeze-drying equipment, the collectors in the drying chamber share a single opening and closing door, resulting in a large number of collectors melting ice at the same time. This increases the melting time and frequency, significantly increases energy loss, and affects the equipment's operating costs.
The ice-melting process is carried out in batches, with only one-quarter of the collectors in the drying chamber being melted at a time. The remaining three-thirds of the collectors continue to collect water vapor. The upper and lower doors of the collectors are connected by sliding joints to achieve individual control, ensuring the continuity and energy efficiency of the drying process.
It shortens the drying cycle, reduces energy loss and time costs, lowers equipment operating energy consumption, and improves production efficiency and equipment lifespan.
Smart Images
Figure CN224065769U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to vacuum freeze drying technical field, concretely is a kind of energy-saving vacuum freeze drying equipment. BACKGROUND
[0002] Vacuum freeze drying technology is widely used in food processing, biological medicine, chemical industry and other fields with the advantage of effectively preserving the original components, structure and performance of material, and occupies a key position in material drying process link, with the continuous improvement of drying product quality and production efficiency requirement of each industry, the performance of vacuum freeze drying equipment is also concerned.
[0003] However, the traditional vacuum freeze drying equipment has some deficiencies in practical application, in drying efficiency, the traditional equipment adopts the whole ice melting mode, after a drying cycle, ice melting is carried out separately, drying operation cannot be carried out during this period, leading to interruption of drying process, and the overall drying cycle is greatly extended, the existing equipment will adopt open-close door on both sides of the dryer in the drying chamber, but usually several puffers of one side share one open-close door, in energy consumption, since a large number of puffers simultaneously carry out ice melting operation during ice melting, not only the ice melting time and frequency increase, but also the energy loss increases significantly, resulting in high equipment operation cost. UTILITY MODEL CONTENT
[0004] (I) technical problem solved
[0005] In view of the deficiencies of the prior art, the utility model provides an energy-saving vacuum freeze drying equipment, which solves the problem that several puffers of one side of the existing equipment drying chamber share one open-close door, and a large number of puffers simultaneously carry out ice melting operation, not only the ice melting time and frequency increase, but also the energy loss increases significantly.
[0006] (II) technical scheme
[0007] To achieve the above purpose, the utility model is realized by the following technical scheme:
[0008] An energy-saving vacuum freeze drying equipment, comprising: a drying chamber, the outer wall of the top of the drying chamber is fixedly connected with an open-close door device, the outer wall of the bottom of the open-close door device is rotatably connected with an opening and closing door, further comprising: a puffer, the inner wall of the puffer is fixedly connected with a puffer refrigeration pipe, the outer wall of the puffer is slidably connected with a puffer upper door plate through a slide rail, the outer wall of the puffer is slidably connected with a puffer lower door plate through a slide rail, the puffer upper door plate and the puffer lower door plate of the puffer are slidably connected through a slide rail, and each door plate is provided with an electric pulley for control.
[0009] Preferably, the collectors are arranged horizontally along the inner wall of the drying chamber, and the outer wall of the opening and closing door is in contact with the outer wall of the drying chamber. In order to ensure continuous and efficient operation of the equipment, the collectors adopt a batch melting method. Each time, one-quarter of the total number of collectors is melted, while the remaining three-quarters of the total number of collectors continue to collect water vapor. After the melting of the ice in the one-quarter of the total number of collectors is completed, the door is opened to collect water vapor. Then, the melting operation is performed on one-quarter of the remaining three-quarters of the total number of collectors, while the remaining collectors continue to collect water vapor. The above operation is repeated alternately and cyclically. Multiple collectors can be freely switched, which can achieve a state of full water vapor collection and partial ice melting.
[0010] Preferably, the inner wall of the top of the drying chamber is fixedly connected to an upper frame rail, and the inner wall of the bottom of the drying chamber is fixedly connected to a lower frame positioning rail. The cart loaded with the material to be dried is sent into the drying chamber through the upper frame rail and the lower frame positioning rail. The lower frame positioning rail can effectively prevent the cart from swaying and ensure the stability of the material placement.
[0011] Preferably, a hot water pipe is fixedly connected to the inner wall of the drying chamber, and a heating plate is fixedly connected to the outer wall of the hot water pipe. The heating plate is arranged vertically along the outer wall of the hot water pipe. The hot water circulates in the hot water pipe, and the heat is transferred to the aluminum heating plate arranged vertically on the outer wall. The heating plate provides heat to the material, causing the moisture in the material to sublimate into water vapor.
[0012] Preferably, a spray cleaning pipe is fixedly connected to the inner wall of the top of the drying chamber, which can clean the inside of the drying chamber after the equipment has completed the drying work. Vacuum pipes and main refrigeration pipes are symmetrically fixedly connected to the inner wall of the side of the drying chamber, and ice-melting drain pipes and ice-melting pipes are fixedly connected to the inner wall of the bottom of the drying chamber.
[0013] Preferably, the outer wall of the main refrigeration pipe is fixedly connected to the inner wall of the refrigeration coil of the collector, and the outer wall of the ice-melting drain pipe is fixedly connected to the inner wall of the bottom of the collector. The steam generated in the ice-melting tank enters the collector through the ice-melting pipe to melt the ice on the refrigeration coil of the collector. The ice-melting drain pipe on the bottom inner wall is responsible for draining the water generated by the ice melting into the drying chamber.
[0014] (III) Beneficial Effects
[0015] This invention provides an energy-saving vacuum freeze-drying device. It has the following beneficial effects:
[0016] (i) The collector, with its upper and lower door panels slidably connected by an outer wall slide rail, allows for individual switching of the opening and closing states of each collector. Each time, only one-quarter of the total number of collectors is subjected to ice-melting operation, while the remaining three-quarters continuously collect water vapor. This ensures that some collectors are always in a water vapor collection state, avoiding the inability to perform drying operations or the excessive number of collectors to be melted during the ice-melting process in traditional equipment, which leads to increased ice-melting time and frequency. This allows the drying process to proceed continuously, greatly shortening the overall drying cycle, reducing energy loss and time costs during the ice-melting process, lowering equipment operating energy consumption, and effectively saving production costs.
[0017] (ii) The drying chamber, through the cooperation of the upper rail and the lower positioning rail of the frame, ensures that the frame loaded with materials is placed stably and prevents swaying, thus ensuring the safety of the materials during the drying process. The spray cleaning pipe on the top of the drying chamber can quickly clean the inside of the chamber after the drying work is completed, reducing the amount and time of manual cleaning, keeping the equipment clean, and extending the service life of the equipment. Attached Figure Description
[0018] Fig. 1 This is a schematic diagram of the overall structure of this utility model;
[0019] Fig. 2 This is a schematic diagram of the internal structure of this utility model.
[0020] In the diagram: 1. Drying chamber; 2. Door opener / closer; 3. Door; 11. Hot water pipe; 111. Heating plate; 12. Spray cleaning pipe; 13. Vacuum pipe; 14. Main refrigeration pipe; 15. De-icing drain pipe; 151. De-icing pipe; 20. Collector; 21. Collector refrigeration pipe; 23. Collector upper door panel; 24. Collector lower door panel; 31. Upper track of the frame; 32. Lower positioning track of the frame. Detailed Implementation
[0021] 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.
[0022] Please see Figs. 1-2This utility model provides a technical solution: an energy-saving vacuum freeze-drying device, comprising: a drying chamber 1, with a door opener / closer 2 symmetrically and fixedly connected to the outer wall of the top of the drying chamber 1, and an opening / closing door 3 rotatably connected to the outer wall of the bottom of the door opener / closer 2; and further comprising: a collector 20, which is symmetrically and fixedly connected to the inner wall of the drying chamber 1; a collector cooling pipe 21 is fixedly connected to the inner wall of the collector 20; an upper collector door panel 23 is slidably connected to the outer wall of the collector 20 via a slide rail; a lower collector door panel 24 is slidably connected to the outer wall of the collector 20 via a slide rail; the upper collector door panel 23 and the lower collector door panel 24 are slidably connected via a slide rail; and each door panel is equipped with an electric pulley for control.
[0023] The collectors 20 are arranged horizontally along the inner wall of the drying chamber 1. The outer wall of the opening and closing door 3 is in contact with the outer wall of the drying chamber 1. In order to ensure the continuous and efficient operation of the equipment, the collectors 20 adopt a batch melting method. Each time they work, one-quarter of the total number of collectors 20 are melted, while the remaining three-quarters of the total number of collectors 20 continue to collect water vapor. After the one-quarter of the total number of collectors 20 finishes melting, the door is opened to collect water vapor. Then, the one-quarter of the remaining three-quarters of the total number of collectors 20 are melted, while the remaining collectors 20 continue to collect water vapor. The above operation is repeated alternately and cyclically. Multiple collectors 20 can be freely switched to achieve a state of full water vapor collection and partial melting.
[0024] The inner wall of the top of the drying chamber 1 is fixedly connected to the upper rail 31 of the frame, and the inner wall of the bottom of the drying chamber 1 is fixedly connected to the lower positioning rail 32 of the frame. The trolley loaded with the material to be dried is sent into the drying chamber 1 through the upper rail 31 and the lower positioning rail 32 of the frame. The lower positioning rail 32 of the frame can effectively prevent the trolley from swaying and ensure the stability of the material placement.
[0025] A hot water pipe 11 is fixedly connected to the inner wall of the drying chamber 1, and a heating plate 111 is fixedly connected to the outer wall of the hot water pipe 11. The heating plate 111 is arranged vertically along the outer wall of the hot water pipe 11. The hot water circulates in the hot water pipe 11, and the heat is transferred to the aluminum heating plate 111 arranged vertically on the outer wall. The heating plate 111 provides heat to the material, causing the moisture in the material to sublimate into water vapor.
[0026] A spray cleaning pipe 12 is fixedly connected to the inner wall of the top of the drying chamber 1, which can clean the inside of the drying chamber 1 after the equipment has completed the drying work. Vacuum pipes 13 and main refrigeration pipes 14 are symmetrically fixedly connected to the inner wall of the side of the drying chamber 1. De-icing drain pipes 15 and de-icing pipes 151 are fixedly connected to the inner wall of the bottom of the drying chamber 1.
[0027] The outer wall of the main refrigeration pipe 14 is fixedly connected to the inner wall of the collector refrigeration pipe 21, and the outer wall of the ice melting drain pipe 15 is fixedly connected to the inner wall of the bottom of the collector 20. The steam generated in the ice melting tank enters the collector 20 through the ice melting pipe 151 to melt the ice on the collector refrigeration pipe 21. The ice melting drain pipe 15 on the bottom inner wall is responsible for draining the water generated by the ice melting into the drying chamber 1.
[0028] In use, first, the material to be dried is frozen to a low temperature. Then, the door opener 2 on the top of the drying chamber 1 is opened, which drives the door 3 to rotate and open. The trolley loaded with the material to be dried is sent into the drying chamber 1 through the upper track 31 and the lower positioning track 32 of the trolley. The lower positioning track 32 can effectively prevent the trolley from swaying and ensure that the material is placed stably. Then, the door 3 is closed so that its outer wall is in close contact with the outer wall of the drying chamber 1, ensuring that the drying chamber 1 forms a sealed space.
[0029] Next, the vacuum pump unit starts working, drawing a vacuum in the drying chamber 1 through the vacuum tube 13 on the inner wall of the side, achieving the required vacuum level for drying. At this time, the hot water pipe 11 on the inner wall of the drying chamber 1 comes into play, circulating hot water and transferring heat to the vertically arranged aluminum heating plates 111 on the outer wall. The heating plates 111 provide heat to the material, causing the moisture in the material to sublimate into water vapor. The sublimated water vapor is captured by the collectors 20 symmetrically arranged on the inner wall of the drying chamber 1. The collector cooling pipes 21 on the inner wall of the collectors 20 are connected to the main cooling pipe 14, maintaining a low temperature. Upon contact with the collector cooling pipes 21, the water vapor quickly freezes on the pipe wall, thus achieving water vapor capture. Plate 23 and lower door panel 24 of the collector are slidably connected by a slide rail. Each door panel is equipped with an electric pulley for control. In order to ensure the continuous and efficient operation of the equipment, the collector 20 adopts a batch melting method. Each time it works, one-quarter of the total number of collectors 20 performs the melting operation, while the remaining three-quarters of the total number of collectors 20 continue to collect water vapor. When the melting of the one-quarter of the total number of collectors 20 is completed, the door panel is opened to collect water vapor. Then, the melting operation is performed on one-quarter of the remaining three-quarters of the total number of collectors 20, while the remaining collectors 20 continue to collect water vapor. The above operation is repeated alternately and cyclically. Multiple collectors 20 can be freely switched to achieve a state of full water vapor collection and partial melting.
[0030] When it is necessary to melt ice in the collector 20, the upper door plate 23 and the lower door plate 24 of the collector 20 slide close to each other and close, disconnecting from the drying chamber 1. At the same time, the valve between the ice melting pipe 151 and the collector 20 automatically opens, and the steam generated in the ice melting tank enters the collector 20 through the ice melting pipe 151 to melt the ice on the collector refrigeration pipe 21. The ice melting drain pipe 15 on the bottom inner wall is responsible for draining the water generated by ice melting from the drying chamber 1 to ensure the normal operation of the equipment. The spray cleaning pipe 12 on the top inner wall of the drying chamber 1 can clean the inside of the drying chamber 1 after the equipment has completed the drying work to keep the equipment clean.
[0031] 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.
[0032] 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. An energy efficient vacuum freeze drying apparatus comprising: Drying bin (1), the outer wall of the top of the drying bin (1) is symmetrically fixedly connected with an opening and closing door device (2), and the bottom of the opening and closing door device (2) is rotatably connected with an opening and closing door (3), characterized in that further comprising: a collector (20) is symmetrically fixedly connected to the inner wall of the drying bin (1); The inner wall of the collector (20) is fixedly connected with a collector refrigeration pipe (21), and the outer wall of the collector (20) is slidably connected with a collector upper door plate (23) through a slide rail, and the outer wall of the collector (20) is slidably connected with a collector lower door plate (24) through a slide rail.
2. The energy-saving vacuum freeze drying apparatus according to claim 1, characterized in that: The collector (20) is arranged transversely along the inner wall of the drying bin (1), and the outer wall of the opening and closing door (3) is in contact with the outer wall of the drying bin (1).
3. The energy-saving vacuum freeze drying apparatus according to claim 1, characterized in that: The inner wall of the top of the drying bin (1) is fixedly connected with an upper rail (31) of a vehicle frame, and the inner wall of the bottom of the drying bin (1) is fixedly connected with a lower positioning rail (32) of the vehicle frame.
4. The energy-saving vacuum freeze drying apparatus according to claim 1, characterized in that: The inner wall of the drying bin (1) is fixedly connected with a hot water pipe (11), the outer wall of the hot water pipe (11) is fixedly connected with a heating plate (111), and the heating plate (111) is arranged vertically along the outer wall of the hot water pipe (11).
5. The energy-saving vacuum freeze drying apparatus according to claim 1, characterized in that: The inner wall of the top of the drying bin (1) is fixedly connected with a spray cleaning pipe (12), the inner wall of the side of the drying bin (1) is symmetrically fixedly connected with a vacuum pipe (13) and a total refrigeration pipe (14), and the inner wall of the bottom of the drying bin (1) is fixedly connected with a thawing ice drainage pipe (15) and a thawing pipe (151).
6. The energy-saving vacuum freeze drying apparatus according to claim 5, characterized in that: The outer wall of the total refrigeration pipe (14) is fixedly connected with the inner wall of the collector refrigeration pipe (21), and the outer wall of the thawing ice drainage pipe (15) is fixedly connected with the inner wall of the bottom of the collector (20).