CN211608093U - Fruit vegetables quick cooling drying machine - Google Patents
Fruit vegetables quick cooling drying machine Download PDFInfo
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- CN211608093U CN211608093U CN201922107709.2U CN201922107709U CN211608093U CN 211608093 U CN211608093 U CN 211608093U CN 201922107709 U CN201922107709 U CN 201922107709U CN 211608093 U CN211608093 U CN 211608093U
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- drying
- freeze
- drying chamber
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- evaporator
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- 238000001035 drying Methods 0.000 title claims abstract description 97
- 238000001816 cooling Methods 0.000 title claims abstract description 23
- 235000013311 vegetables Nutrition 0.000 title abstract description 18
- 235000013399 edible fruits Nutrition 0.000 title abstract description 12
- 238000004108 freeze drying Methods 0.000 claims abstract description 87
- 235000012055 fruits and vegetables Nutrition 0.000 claims abstract description 55
- 230000007246 mechanism Effects 0.000 claims abstract description 15
- 239000007788 liquid Substances 0.000 claims description 29
- 230000005540 biological transmission Effects 0.000 claims description 22
- 238000010438 heat treatment Methods 0.000 claims description 16
- 238000007599 discharging Methods 0.000 claims description 6
- 235000016709 nutrition Nutrition 0.000 abstract description 4
- 230000035764 nutrition Effects 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 235000011869 dried fruits Nutrition 0.000 description 3
- 235000021022 fresh fruits Nutrition 0.000 description 3
- 239000003507 refrigerant Substances 0.000 description 3
- 238000005057 refrigeration Methods 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000004615 ingredient Substances 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 230000001174 ascending effect Effects 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 235000009508 confectionery Nutrition 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 235000015097 nutrients Nutrition 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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Abstract
The utility model discloses a fruit and vegetable quick-cooling and drying integrated machine, which comprises a cylindrical freeze-drying chamber, a cylindrical drying chamber and an external unit arranged on one side; a freeze-drying area and a drying area are respectively arranged in the freeze-drying chamber and the drying chamber, and moisture exhausting fans are respectively arranged at the tops of the freeze-drying chamber and the drying chamber; the outer parts of the freeze-drying area and the drying area are respectively provided with a double-screw conveying mechanism communicated through a conveying device; and a feed inlet and a discharge outlet are respectively arranged at the bottoms of the drying chamber and the freeze-drying chamber. The utility model discloses can realize the fast cold and fast hot, pin the nutrition of fruit vegetables in the twinkling of an eye, improve fruit vegetables taste, dwell time in freeze-drying room and drying chamber is long, and drying efficiency is high.
Description
Technical Field
The utility model relates to a material drying technology field, concretely relates to quick cold drying machine of fruit vegetables.
Background
The storage time of fresh fruits and vegetables is short, and the fruits and vegetables are easy to rot, and in order to prolong the storage time of the fruits and vegetables, people dry the fresh fruits and vegetables to make dried fruits or dried vegetables so as to prolong the storage time of the fruits and vegetables and enlarge the field of sales, and waste of the fruits and vegetables caused by improper storage is avoided. Although drying is related to all fields, drying is more common in the field of fruits and vegetables, the traditional drying method is usually adopted for drying, but the drying efficiency is low, the phenomena of mildewing and local drying are easy to occur, the color is dark, the appearance is poor, in addition, outdoor dust and sundries can pollute the fruits and vegetables to a certain extent, and the quality of dried products is unqualified.
In addition, the existing drying room simply dries the fruits and vegetables at a certain temperature, so that the nutritional ingredients in the fruits and vegetables are lost, and the taste is poor.
Disclosure of Invention
In view of this, the utility model aims at prior art not enough, provide one kind and can realize the quick cold and fast hot, pin the nutrition of fruit vegetables in the twinkling of an eye, improve fruit vegetables taste, the quick cold drying machine of fruit vegetables that drying efficiency is high.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
a fruit and vegetable quick-cooling and drying integrated machine comprises a cylindrical freeze-drying chamber, a cylindrical drying chamber and an external unit arranged on one side; a freeze-drying area and a drying area are respectively arranged in the freeze-drying chamber and the drying chamber, and a low-temperature circulating fan set and a high-temperature circulating fan set are respectively arranged in the middle of the freeze-drying area and the middle of the drying area; a precooling evaporator and a standard condition evaporator are respectively arranged below the low-temperature circulating fan set of the freeze-drying area, and a limit evaporator is arranged above the freeze-drying area; a preheating condenser and a hot air condenser are respectively arranged at the top and the bottom of the drying zone;
the top parts of the freeze-drying chamber and the drying chamber are respectively provided with a moisture exhaust fan; the outer parts of the freeze-drying area and the drying area are respectively provided with a double-screw conveying mechanism communicated through a conveying device; and a feed inlet and a discharge outlet are respectively arranged at the bottoms of the drying chamber and the freeze-drying chamber.
Aiming at the technical characteristics, the drying chamber is used for drying the fruits and vegetables firstly, so as to prevent the fruits and vegetables from mildewing after direct freeze-drying or freeze-drying and unfreezing, the freeze-drying chamber is used for freeze-drying the fruits and vegetables which are subjected to preliminary drying, the drying chamber and the freeze-drying chamber enable the fruits and vegetables to be respectively dried in an environment with large temperature difference, and the drying chamber and the freeze-drying chamber are similar to areas with large temperature difference between day and night, so that the nutritional ingredients in the fruits and vegetables can be effectively locked, the color of the dried fruits and vegetables is kept fresh, the taste is soft, the sugar; fruits and vegetables are conveyed to the top from the lower part of the drying chamber through the feed port along the double-screw conveying mechanism, primary drying is carried out in the process, the preheating and the hot air condenser release heat to enable the temperature in the drying area to rise, the fruits and vegetables are dried, the temperature of the preheating condenser is higher than that of the hot air condenser, the temperature of the upper part of the drying area is higher than that of the bottom, the fruits and vegetables are easier to enable the internal water to be removed in a dry and hot environment, and meanwhile, the water separated out from the fruits and vegetables is taken away by large air volume, so that the purpose of; dried fruits and vegetables are directly conveyed to the freeze-drying chamber from the drying chamber through the conveying device and conveyed to the bottom of the freeze-drying chamber from the top of the freeze-drying chamber along the double-screw conveying mechanism, freeze-drying is carried out in the process, a precooling evaporator and a limit evaporator in the freeze-drying chamber absorb heat to reduce the temperature in a freeze-drying area, a standard condition condenser plays a role in replenishment, when the temperature in the freeze-drying chamber does not meet the requirement, the replenishment is started, the power of the precooling evaporator is greater than that of the limit evaporator, so that a temperature gradient is formed in the freeze-drying area, and the fruits and vegetables are; when the fruits and vegetables pass through the drying area and the freeze-drying area, the fruits and vegetables directly enter the freeze-drying area from the high temperature of the drying area at the low temperature and undergo large temperature change, so that the internal components of the fruits and vegetables are effectively locked, and the taste of the fruits and vegetables is improved; the fruits and vegetables are dried and then freeze-dried, so that the fruits and vegetables can be effectively prevented from being mildewed, and the quality of the fruits and vegetables is ensured; the low-temperature circulating fan set and the high-temperature circulating fan set accelerate the circulating wind speed of respective areas, so that redundant water is rapidly brought out; when the humidity in the freeze-drying area and the drying area is high, the humidity is adjusted through a moisture exhaust fan.
Preferably, the double-helix conveying mechanism comprises a hollow helix rod arranged outside the freeze-drying area and the drying area, a helix blade arranged outside the helix rod, and a driving motor arranged at the bottom of the helix rod and used for driving the helix rod to rotate. The driving motor drives the screw rod to rotate, the fruits and vegetables do circular motion along the spiral leaves and ascend spirally, the fruits and vegetables can be fully dried and freeze-dried in the ascending process, and the time of staying in the freeze-drying area and the drying area is effectively prolonged.
Preferably, the external unit comprises a shell, and a heating compressor, a refrigerating compressor, a liquid storage tank, a filter, a gas-liquid separator and a supply system which are arranged in the shell; the make-up system includes a make-up compressor and a standard condition condenser.
The communication mode among each part is: one ends of the preheating condenser and the hot air condenser are respectively communicated with the refrigerating compressor and the heating compressor through pipelines, the other ends of the preheating condenser and the hot air condenser are communicated with the liquid storage tank, the liquid storage tank is respectively communicated with the precooling evaporator and the limit evaporator, and the other ends of the precooling evaporator and the limit evaporator are communicated with the refrigerating compressor and the heating compressor through the gas-liquid separator to form a pipeline loop.
The connection mode of the replenishment system is as follows: one end of the standard condition condenser is communicated with the supply compressor through a pipeline, the other end of the standard condition condenser is communicated with the liquid storage tank, the liquid storage tank is respectively communicated with the precooling evaporator and the limit evaporator, and the other ends of the precooling evaporator and the limit evaporator are communicated with the supply compressor through the gas-liquid separator to form a pipeline loop.
Drying and freeze-drying adopt one system, and replenishment adopts a separate system.
Preferably, a filter is arranged between the liquid storage tank and the pre-cooling evaporator and the limit evaporator.
Preferably, electromagnetic valves are arranged between the heating compressor, the refrigerating compressor and the supply compressor and between the standard condition condenser and the hot air condenser; and a throttle valve is arranged between the pre-cooling evaporator and the filter and between the limit evaporator and the filter. The temperature in the drying chamber and the freeze-drying chamber is controlled by an electromagnetic valve and a throttle valve.
Preferably, the low-temperature circulating fan set and the high-temperature circulating fan set respectively comprise two sets of axial flow fans with opposite wind directions.
Preferably, the transmission device comprises a transmission shaft which is relatively fixed outside the freeze-drying chamber and the drying chamber, transmission wheels which are arranged on two sides of the transmission shaft and a conveyor belt which is wound on the transmission wheels, and two ends of the conveyor belt are respectively connected with the double-helix conveying mechanisms in the drying chamber and the freeze-drying chamber; the transmission shaft is driven by a transmission motor.
Preferably, the freeze-drying chamber and the drying chamber are externally provided with heat insulation layers. Avoid drying chamber, freeze-drying indoor temperature to leak, the problem in the control room of being convenient for improves energy utilization.
Preferably, a feeding device and a discharging device are respectively arranged at the feeding hole and the discharging hole. The feeding device and the discharging device are both conventional driving belts, so that the fruits and vegetables can be conveniently fed and discharged, the amount of manual labor is saved, and the operation efficiency is improved.
The utility model has the advantages that:
the utility model provides a larger temperature difference environment for the fruits and vegetables through the freeze-drying chamber and the drying chamber, effectively locks the nutrient components in the fruits and vegetables, and makes the colors of the fruits and vegetables approximate to those of fresh fruits and vegetables, and has high sweetness and soft taste; the fruits and vegetables are conveyed through the double-screw conveying mechanism, so that the retention time of the fruits and vegetables in the freeze-drying chamber and the drying chamber is prolonged, and the drying effect of the fruits and vegetables is ensured; the redundant water is rapidly brought out by arranging a low-temperature circulating fan set and a high-temperature circulating fan set and adding air circulation in a quick-freezing drying area and a drying area; the standard condition condenser is arranged in the freeze-drying area, so that the condition that the temperature in the freeze-drying area cannot meet the requirement can be effectively prevented, and the freeze-drying efficiency is improved.
Drawings
Fig. 1 is a schematic structural view of the present invention;
fig. 2 is a cross-sectional view of the present invention;
fig. 3 is a top view of the present invention;
FIG. 4 is a schematic diagram of the cycle of the refrigerant in the present invention;
FIG. 5 is a schematic view of the connection of the hot air circulation of the present invention;
FIG. 6 is a schematic view of the connection of the circulation of the cooling air in the present invention;
fig. 7 is a schematic connection diagram of the replenishment cycle of the present invention.
In the figure: the device comprises a freeze-drying chamber 1, a drying chamber 2, an external unit 3, a transmission device 4, a discharge device 5, a feeding device 6, a dehumidifying fan 7, a pipeline 8, a heat-insulating layer 9, a spiral blade 10, a spiral rod 11, a driving motor 12, a limit evaporator 13, a low-temperature circulating fan unit 14, a standard condition evaporator 15, a precooling evaporator 16, a preheating condenser 17, a high-temperature circulating fan unit 18 and a hot air condenser 19.
Detailed Description
The invention is further described with reference to the following figures and examples.
As shown in fig. 1-3, a fruit and vegetable quick-cooling and drying integrated machine comprises a cylindrical freeze-drying chamber 1, a cylindrical drying chamber 2 and an external unit 3 arranged on one side; and the outer parts of the freeze-drying chamber 1 and the drying chamber 2 are provided with heat insulation layers 9.
A freeze drying area and a drying area are respectively arranged in the freeze drying chamber 1 and the drying chamber 2, and a low-temperature circulating fan set 14 and a high-temperature circulating fan set 18 are respectively arranged in the middle of the freeze drying area and the middle of the drying area; a precooling evaporator 16 and a standard condition evaporator 15 are respectively arranged below a low-temperature circulating fan set 14 of the freeze-drying area, and a limit evaporator 13 is arranged above the freeze-drying area; a preheating condenser 17 and a hot air condenser 19 are respectively arranged at the top and the bottom of the drying zone; the low-temperature circulating fan set 14 and the high-temperature circulating fan set 18 respectively comprise two axial flow fans with opposite wind directions.
The top parts of the freeze-drying chamber 1 and the drying chamber 2 are respectively provided with a moisture exhaust fan 7; the outer parts of the freeze-drying area and the drying area are respectively provided with a double-helix conveying mechanism communicated through a conveying device 4; the double-helix conveying mechanism comprises a hollow screw rod 11 arranged outside the freeze-drying area and the drying area, a helical blade 10 arranged outside the screw rod 11, and a driving motor 12 arranged at the bottom of the screw rod 11 and used for driving the screw rod to rotate.
And a feed inlet and a discharge outlet are respectively arranged at the bottoms of the drying chamber 2 and the freeze-drying chamber 1. The transmission device 4 comprises transmission shafts which are relatively fixed on the outer sides of the freeze-drying chamber 1 and the drying chamber 2, transmission wheels which are arranged on two sides of the transmission shafts and a conveying belt which is wound on the transmission wheels, and two ends of the conveying belt are respectively connected with double-spiral conveying mechanisms in the drying chamber and the freeze-drying chamber; the transmission shaft is driven by a transmission motor.
The external unit 3 comprises a shell, a heating compressor, a refrigerating compressor, a liquid storage tank, a filter, a gas-liquid separator and a supply system, wherein the heating compressor, the refrigerating compressor, the liquid storage tank, the filter, the gas-liquid separator and the supply system are arranged in the shell; the make-up system includes a make-up compressor and an external condenser. Electromagnetic valves are arranged among the heating compressor, the refrigerating compressor, the supply compressor, the standard condition condenser and the hot air condenser; and a throttle valve is arranged between the pre-cooling evaporator and the filter and between the limit evaporator and the filter.
A filter may also be provided between the reservoir and the pre-cooling evaporator 16 and limit evaporator 13.
And a feeding device 6 and a discharging device 5 are respectively arranged at the feed inlet and the discharge outlet. The loading device 6 and the unloading device 5 are conventional conveying devices, are conventional in arrangement, and the specific structure is not described in a repeated manner, and can be similar to that of the conveying device 4.
The circulation process of the refrigerant in the liquid storage tank is shown in figure 4: from the gas-liquid separator, the refrigerant flows through a compressor, an electromagnetic valve, (a preheating condenser 17 and a hot air condenser 19), a liquid storage device, a filter, a throttle valve, (a precooling evaporator 16, a standard condition evaporator 15 and a limit evaporator 13) in sequence through a pipeline 8, and then returns to the gas-liquid separator.
The utility model discloses divide into 3 systems, heating system, refrigerating system and supply system, heating system are used for the indoor stoving fruit vegetables of drying, and refrigerating system is used for freeze-drying room freeze-drying fruit vegetables, and supply system carries out the supply at any time when the temperature in freeze-drying room does not reach the demand, guarantees the taste and the quality of freeze-drying back fruit vegetables.
As shown in fig. 5, the heating system operates as follows: one ends of the preheating condenser and the hot air condenser are respectively communicated with the heating compressor through pipelines, the other ends of the preheating condenser and the hot air condenser are communicated with the liquid storage tank, the liquid storage tank is respectively communicated with the precooling evaporator and the limit evaporator, and the other ends of the precooling evaporator and the limit evaporator are communicated with the heating compressor through the gas-liquid separator to form circulation.
As shown in fig. 6, the operation of the refrigeration system is as follows: one ends of the pre-heating condenser and the hot air condenser are respectively communicated with the refrigeration compressor through pipelines, the other ends of the pre-heating condenser and the hot air condenser are communicated with the liquid storage tank, the liquid storage tank is respectively communicated with the pre-cooling evaporator and the limit evaporator, and the other ends of the pre-cooling evaporator and the limit evaporator are communicated with the refrigeration compressor through the gas-liquid separator to form circulation.
As shown in fig. 7, the replenishment system operates in the following manner: one end of the standard condition condenser is communicated with the supply compressor through a pipeline, the other end of the standard condition condenser is communicated with the liquid storage tank, the liquid storage tank is respectively communicated with the precooling evaporator and the limit evaporator, and the other ends of the precooling evaporator and the limit evaporator are communicated with the supply compressor through the gas-liquid separator to form a cycle.
The utility model discloses a theory of operation: a hot air condenser 19 in the drying area preheats the whole area, a high-temperature circulating fan unit 18 promotes convection of the area, then the preheating condenser 17 further heats the fruit and vegetable, the fruit and vegetable spirally rises along a double-screw conveying mechanism from a feeding hole to be dried step by step, and the fruit and vegetable enters a freeze-drying chamber from the drying area through a conveying device 4; the temperature of the lower part of the freeze-drying area is reduced by the limit evaporator 13, the temperature of the whole freeze-drying area is enabled to be consistent by the low-temperature circulating fan set 14, the low-temperature circulating fan set 14 is closed, the temperature of the lower part of the freeze-drying area is further reduced by the precooling evaporator 16 through controlling the throttle valve, the fruits and vegetables are freeze-dried gradually from top to bottom along the double-helix conveying mechanism in the freeze-drying area, and finally the fruits and vegetables are discharged along the discharge hole. The fruits and vegetables directly enter the freeze-drying zone from the drying zone to undergo great temperature change, so that the internal sweet of the fruits and vegetables can be effectively locked, and the taste of the fruits and vegetables is improved; drying and freeze-drying can prevent the fruits and vegetables from mildewing. In addition, when the temperature in freeze-drying district can not reach the demand, the standard condition evaporimeter starts, further cools down to freeze-drying district to guarantee the freeze-drying efficiency and the quality of fruit vegetables.
The apparatus elements referred to in the above embodiments are conventional apparatus elements unless otherwise specified, and the structural arrangements, operations, or controls referred to in the above embodiments are conventional in the art unless otherwise specified.
Finally, the above embodiments are only used for illustrating the technical solutions of the present invention and not for limiting, and other modifications or equivalent replacements made by the technical solutions of the present invention by those of ordinary skill in the art should be covered within the scope of the claims of the present invention as long as they do not depart from the spirit and scope of the technical solutions of the present invention.
Claims (9)
1. A fruit and vegetable quick-cooling and drying integrated machine is characterized by comprising a cylindrical freeze-drying chamber, a cylindrical drying chamber and an external unit arranged on one side; a freeze-drying area and a drying area are respectively arranged in the freeze-drying chamber and the drying chamber, and a low-temperature circulating fan set and a high-temperature circulating fan set are respectively arranged in the middle of the freeze-drying area and the middle of the drying area; a precooling evaporator and a standard condition evaporator are respectively arranged below the low-temperature circulating fan set of the freeze-drying area, and a limit evaporator is arranged above the freeze-drying area; a preheating condenser and a hot air condenser are respectively arranged at the top and the bottom of the drying zone;
the top parts of the freeze-drying chamber and the drying chamber are respectively provided with a moisture exhaust fan; the outer parts of the freeze-drying area and the drying area are respectively provided with a double-screw conveying mechanism communicated through a conveying device; and a feed inlet and a discharge outlet are respectively arranged at the bottoms of the drying chamber and the freeze-drying chamber.
2. The fruit and vegetable quick-cooling and drying all-in-one machine as claimed in claim 1, wherein the double-screw conveying mechanism comprises a hollow screw rod arranged outside the freeze drying area and the drying area, a screw blade arranged outside the screw rod, and a driving motor arranged at the bottom of the screw rod and used for driving the screw rod to rotate.
3. The integrated fruit and vegetable rapid-cooling and drying machine according to claim 1, wherein the external unit comprises a shell, and a heating compressor, a refrigerating compressor, a liquid storage tank, a filter, a gas-liquid separator and a supply system which are arranged in the shell; the make-up system includes a make-up compressor and a standard condition condenser.
4. The integrated machine for rapidly cooling and drying fruits and vegetables according to claim 3, wherein filters are respectively arranged between the liquid storage tank and the pre-cooling evaporator and the limiting evaporator.
5. The integrated machine for rapidly cooling and drying fruits and vegetables according to claim 4, wherein electromagnetic valves are arranged between the heating compressor, the refrigerating compressor and the supply compressor and the standard condition condenser and the hot air condenser; and a throttle valve is arranged between the pre-cooling evaporator and the filter and between the limit evaporator and the filter.
6. The integrated fruit and vegetable rapid-cooling and drying machine according to claim 1, wherein the low-temperature circulating fan set and the high-temperature circulating fan set respectively comprise two sets of axial fans with opposite wind directions.
7. The fruit and vegetable quick-cooling and drying all-in-one machine as claimed in claim 1, wherein the transmission device comprises transmission shafts which are relatively fixed on the outer sides of the freeze-drying chamber and the drying chamber, transmission wheels which are arranged on two sides of the transmission shafts and a conveyor belt which is wound on the transmission wheels, and two ends of the conveyor belt are respectively connected with double-helix conveying mechanisms in the drying chamber and the freeze-drying chamber; the transmission shaft is driven by a transmission motor.
8. The integrated fruit and vegetable rapid-cooling and drying machine according to claim 1, wherein heat insulating layers are arranged outside the freeze-drying chamber and the drying chamber.
9. The fruit and vegetable quick-cooling and drying all-in-one machine as claimed in claim 1, wherein a feeding device and a discharging device are respectively arranged at the feeding port and the discharging port.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922107709.2U CN211608093U (en) | 2019-11-29 | 2019-11-29 | Fruit vegetables quick cooling drying machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922107709.2U CN211608093U (en) | 2019-11-29 | 2019-11-29 | Fruit vegetables quick cooling drying machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211608093U true CN211608093U (en) | 2020-10-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922107709.2U Expired - Fee Related CN211608093U (en) | 2019-11-29 | 2019-11-29 | Fruit vegetables quick cooling drying machine |
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| Country | Link |
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| CN (1) | CN211608093U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114223712A (en) * | 2021-12-24 | 2022-03-25 | 顶能科技有限公司 | Efficient fruit vegetables freeze-drying device |
-
2019
- 2019-11-29 CN CN201922107709.2U patent/CN211608093U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114223712A (en) * | 2021-12-24 | 2022-03-25 | 顶能科技有限公司 | Efficient fruit vegetables freeze-drying device |
| CN114223712B (en) * | 2021-12-24 | 2024-01-30 | 顶能科技有限公司 | Efficient fruit vegetables freeze-drying device |
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Granted publication date: 20201002 |