CN114076505A - High-efficient portable freeze dryer - Google Patents
High-efficient portable freeze dryer Download PDFInfo
- Publication number
- CN114076505A CN114076505A CN202111312959.5A CN202111312959A CN114076505A CN 114076505 A CN114076505 A CN 114076505A CN 202111312959 A CN202111312959 A CN 202111312959A CN 114076505 A CN114076505 A CN 114076505A
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- Prior art keywords
- case
- evaporator
- compressor
- condenser
- communicated
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000001704 evaporation Methods 0.000 claims abstract description 47
- 210000001736 Capillaries Anatomy 0.000 claims description 11
- RYGMFSIKBFXOCR-UHFFFAOYSA-N copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 10
- 229910052802 copper Inorganic materials 0.000 claims description 10
- 239000010949 copper Substances 0.000 claims description 10
- 238000009833 condensation Methods 0.000 claims description 8
- 230000005494 condensation Effects 0.000 claims description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 7
- 238000001816 cooling Methods 0.000 abstract description 18
- 230000000694 effects Effects 0.000 abstract description 12
- 230000002035 prolonged Effects 0.000 abstract description 10
- 238000005057 refrigeration Methods 0.000 abstract description 7
- 239000003507 refrigerant Substances 0.000 description 14
- 238000000034 method Methods 0.000 description 6
- 230000035484 reaction time Effects 0.000 description 6
- 238000001035 drying Methods 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000002826 coolant Substances 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 238000004108 freeze drying Methods 0.000 description 2
- 238000000859 sublimation Methods 0.000 description 2
- 238000007906 compression Methods 0.000 description 1
- 238000006297 dehydration reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006011 modification reaction Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
Images
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B5/00—Drying solid materials or objects by processes not involving the application of heat
- F26B5/04—Drying solid materials or objects by processes not involving the application of heat by evaporation or sublimation of moisture under reduced pressure, e.g. in a vacuum
- F26B5/06—Drying solid materials or objects by processes not involving the application of heat by evaporation or sublimation of moisture under reduced pressure, e.g. in a vacuum the process involving freezing
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B41/00—Fluid-circulation arrangements
- F25B41/30—Expansion means; Dispositions thereof
- F25B41/31—Expansion valves
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B41/00—Fluid-circulation arrangements
- F25B41/30—Expansion means; Dispositions thereof
- F25B41/37—Capillary tubes
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B43/00—Arrangements for separating or purifying gases or liquids; Arrangements for vaporising the residuum of liquid refrigerant, e.g. by heat
- F25B43/003—Filters
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B49/00—Arrangement or mounting of control or safety devices
- F25B49/02—Arrangement or mounting of control or safety devices for compression type machines, plants or systems
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B25/00—Details of general application not covered by group F26B21/00 or F26B23/00
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B25/00—Details of general application not covered by group F26B21/00 or F26B23/00
- F26B25/06—Chambers, containers, or receptacles
- F26B25/08—Parts thereof
- F26B25/12—Walls or sides; Doors
Abstract
The invention belongs to the technical field of refrigeration, and particularly relates to a high-efficiency portable freeze dryer which comprises a case, wherein the front side wall and the rear side wall of the case are bent inwards, and an electric cabinet, an evaporator, a compressor and a condenser are arranged in the case; the evaporator is positioned in the evaporation box, the bottom of the compressor is provided with a circulating fan, the compressor is communicated with the condenser through a first conveying pipe, the condenser is communicated with the evaporator through a second conveying pipe, the evaporator is communicated with the compressor through a return pipe, one side of the case, which is close to the evaporation box, is provided with a shutter, the opening of the shutter faces downwards, one side of the case, which is close to the condenser, is provided with an air outlet window, the opening of the air outlet window faces downwards, and a temperature sensor is arranged between the top of the evaporation box and the case; the device is small in overall size and convenient to install and use, and the circulating fan, the louver and the air outlet window are utilized, so that the cooling effect is improved, and the service life of the device is prolonged.
Description
Technical Field
The invention belongs to the technical field of refrigeration, and particularly relates to a high-efficiency portable freeze dryer.
Background
The freeze drier is a device for drying by using a freeze drying method, and the freeze drying is also called sublimation drying, and utilizes the principle of ice crystal sublimation, so that under the high vacuum environment, the water content of the frozen material is directly sublimated into steam from ice solid without ice melting. The refrigerating system of the freeze drier belongs to compression refrigeration, it is made up of four basic parts such as the refrigeration compressor, condenser, evaporator, expansion valve, etc., connect sequentially with the pipeline among them, form a closed system, the refrigerant circulates and flows in the system constantly, take place the state change and carry on the heat exchange with compressed air and cooling medium; in a refrigeration system of a freeze dryer, an evaporator is equipment for conveying cold, and a refrigerant absorbs heat of compressed air in the evaporator to achieve the aim of dehydration and drying; the compressor is a heart and plays a role in sucking, compressing and conveying refrigerant vapor; the condenser is a device for releasing heat, and transfers the heat absorbed in the evaporator and the heat converted by the input power of the compressor to a cooling medium for carrying away; the expansion valve performs throttling and pressure reducing functions on the refrigerant, simultaneously controls and regulates the amount of refrigerant liquid flowing into the evaporator, and divides the system into a high-pressure side and a low-pressure side.
The existing freeze dryer is large in size, inconvenient to install, easy to damage due to high-load work of a compressor at high temperature for a long time, and difficult to discharge wet air in the dryer in the working process.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: in order to overcome the problem that the existing freeze dryer is large in size, inconvenient to install and inconvenient to discharge wet air inside, the efficient portable freeze dryer is provided.
In order to solve the technical problems, the invention adopts the following technical scheme: a high-efficiency portable freeze dryer comprises a case, wherein the case is formed by screwing a plurality of groups of sheet metal parts, the front side wall and the rear side wall are bent inwards, and an electric cabinet, an evaporator, a compressor and a condenser are arranged in the case;
the electric cabinet is in signal connection with a control panel arranged on the outer wall of the case, and the control panel electrically controls the evaporator, the compressor and the condenser to work through the electric cabinet; the evaporator is positioned in the evaporation box, and an air exhaust fan is fixed on the side wall of the evaporation box; the bottom of the compressor is provided with a circulating fan to form a heat exchange system in the dryer, the circulating fan performs forced air cooling on the interior of the case to reduce the working heat of the compressor, the compressor is communicated with the condenser through a first conveying pipe, the condenser is communicated with the evaporator through a second conveying pipe, the evaporator is communicated with the compressor through a return pipe, the top end of the evaporator is communicated with an air outlet pipe, an expansion valve is connected onto the air outlet pipe, the bottom end of the evaporator is communicated with a drain pipe, the end of the drain pipe penetrates through the case and is connected with a water outlet head, one side of the case, which is close to the evaporator, is provided with a shutter, the opening of the shutter faces downwards, so that external gas obliquely and downwards enters the lower part of the evaporator, and in the process of cooling and heat exchange, the air gradually rises from the lower part to increase the reaction time between the air and the evaporator, and the cooling and heat exchange effects are improved; the utility model discloses a compressor, including the case, the case is equipped with the condenser, the case is close to one side of condenser and is equipped with the air outlet window, the air outlet window opening is down, when compressor work produced heat, is convenient for have thermal humid air's discharge, the evaporation tank top is equipped with temperature sensor, and control panel passes through electric cabinet electrical control temperature sensor, can carry out monitor control adjustment to the temperature in the evaporation tank, is convenient for to the regulation of air cooling temperature.
According to the technical scheme, the machine box is formed by screwing a plurality of groups of sheet metal parts, the machine box is bent at a certain angle, the placing space can be reduced, the bottom of the compressor is provided with the circulating fan to form a heat exchange system in the dryer, the circulating fan performs forced air cooling on the interior of the machine box to reduce the working heat of the compressor, the opening of the louver is downward, the reaction time between the externally-entering air and the evaporator is prolonged, the cooling and heat exchange effects are improved, and the opening of the air outlet window is downward, so that the discharge of the humid air with heat is facilitated; the device is small in overall size and convenient to install and use, and the circulating fan, the louver and the air outlet window are utilized, so that the cooling effect is improved, and the service life of the device is prolonged.
Furthermore, the evaporator comprises large-diameter evaporation tubes on two sides and a plurality of evaporation capillary tubes communicated with the evaporation tubes on the two sides, and the working time of a refrigerant in a pipeline is prolonged when the evaporator works, so that the heat exchange reaction time of external air and the evaporator is prolonged, and the cooling effect is improved; the evaporation tube and the evaporation capillary tube in the evaporator are both copper tubes, and the heat exchange rate is accelerated by utilizing the characteristics of the copper tubes, so that the efficiency is improved.
Furthermore, the condenser comprises large-diameter condensation pipes on two sides and a plurality of condensation capillary pipes communicated with the condensation pipes on the two sides, and the working time of a refrigerant in a pipeline is prolonged when the condenser works, so that the refrigeration effect is improved; the condenser tube and the condenser capillary tube in the condenser are both copper tubes, and the heat exchange rate is accelerated by utilizing the characteristics of the copper tubes, so that the efficiency is improved.
Furthermore, a wind scooper and a dustproof filter screen are arranged between the evaporation box and the case, the wind scooper is close to the case, the dustproof filter screen is close to the evaporation box, when the air exhaust fan exhausts air, external air enters through the shutter and then enters the evaporation box and contacts with the evaporator after sequentially passing through the wind scooper and the dustproof filter screen, the wind scooper can guide the entering air to enable the air to enter the evaporation box, and the dustproof filter screen can prevent dust from entering the evaporation box and affecting the operation of the evaporator.
Furthermore, a handle is fixed on the top of the case, and the device can be installed at a proper position through the handle.
Furthermore, the compressor is fixed in the case through a compressor hoop.
Furthermore, the temperature sensor is fixed in the case through a sensor hoop.
The invention has the beneficial effects that: the device is small in overall size and convenient to install and use, and the circulating fan, the louver and the air outlet window are utilized, so that the cooling effect is improved, and the service life of the device is prolonged.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of the present invention with the front mounting plate removed;
FIG. 3 is a schematic view of the present invention with the mounting plate removed;
FIG. 4 is a schematic view of the present invention with the front mounting plate and evaporator tank removed;
in the figure: 1. a chassis; 2. a handle; 3. an electric cabinet; 4. a control panel; 5. a blind window; 6. an evaporation tank; 7. an air exhaust fan; 8. an evaporator; 9. a compressor hoop; 10. a compressor; 11. a first conveying pipe; 12. a condenser; 13. a second conveying pipe; 14. a return pipe; 15. an air outlet pipe; 16. an expansion valve; 17. a drain pipe; 18. a water outlet head; 19. a vent window; 20. a sensor hoop; 21. a temperature sensor; 22. a wind scooper; 23. a circulating fan; 24. an evaporation tube; 25. evaporating the capillary; 26. a condenser tube; 27. condensing the capillary tube.
Detailed Description
The present invention will now be described in further detail with reference to the accompanying drawings. The drawings are simplified schematic diagrams illustrating the basic structure of the present invention only in a schematic manner, and thus show only the constitution related to the present invention, and directions and references (e.g., upper, lower, left, right, etc.) may be used only to help the description of the features in the drawings. The following detailed description is, therefore, not to be taken in a limiting sense, and the scope of the claimed subject matter is defined only by the appended claims and equivalents thereof.
Example 1
As shown in fig. 1-4, the invention is a high-efficiency portable freeze dryer, which comprises a case 1, wherein the case 1 is formed by screwing a plurality of groups of sheet metal parts, the front side wall and the rear side wall are bent inwards, a handle 2 is fixed at the top of the case, the device can be installed at a proper position through the handle 2, and an electric cabinet 3, an evaporator 8, a compressor 10 and a condenser 12 are installed in the case 1;
the electric cabinet 3 is in signal connection with a control panel 4 arranged on the outer wall of the case 1, and the control panel 4 electrically controls the evaporator 8, the compressor 10 and the condenser 12 to work through the electric cabinet 3; the evaporator 8 is positioned in the evaporation box 6, and an air exhaust fan 7 is fixed on the side wall of the evaporation box 6; the bottom of the compressor 10 is provided with a circulating fan 23 to form a heat exchange system in the dryer, the circulating fan 23 performs forced air cooling on the interior of the case 1 to reduce the working heat of the compressor 10, the compressor 10 is communicated with the condenser 12 through a first conveying pipe 11, the condenser 12 is communicated with the evaporator 8 through a second conveying pipe 13, the evaporator 8 is communicated with the compressor 10 through a return pipe 14, the top end of the evaporator 8 is communicated with an air outlet pipe 15, the air outlet pipe 15 is connected with an expansion valve 16, the bottom end of the evaporator 6 is communicated with a drain pipe 17, the end part of the drain pipe 17 penetrates through the case 1 to be connected with a water outlet head 18, one side of the case 1 close to the evaporator 6 is provided with a shutter 5, the shutter 5 is opened downwards to enable external gas to obliquely enter the lower part of the evaporator 6, and in the process of temperature reduction and heat exchange, the air gradually rises from the lower part to increase the reaction time between the air and the evaporator 8, the cooling and heat exchange effects are improved; one side that quick-witted case 1 is close to condenser 12 is equipped with air outlet window 19, air outlet window 19 opening is down, when compressor 10 work produced heat, is convenient for have the discharge of thermal humid air, 6 tops of evaporating case are equipped with temperature sensor 21, and control panel 4 passes through 3 electrical control temperature sensor 21 of electric cabinet, can carry out monitor control adjustment to the temperature in the evaporating case 6, is convenient for to the regulation of air cooling temperature.
The evaporator 8 comprises large-diameter evaporation tubes 24 on two sides and a plurality of evaporation capillary tubes 25 communicated with the evaporation tubes 24 on the two sides, and the working time of a refrigerant in a pipeline is prolonged when the evaporator 8 works, so that the heat exchange reaction time of external air and the evaporator 8 is prolonged, and the cooling effect is improved; the evaporation tube 24 and the evaporation capillary tube 25 in the evaporator 8 are both copper tubes, and the heat exchange rate is accelerated by utilizing the characteristics of the copper tubes, so that the efficiency is improved.
The condenser 12 comprises large-diameter condenser pipes 26 on two sides and a plurality of condenser capillary pipes 27 communicated with the condenser pipes 26 on the two sides, working time of a refrigerant in a pipeline is prolonged during working of the condenser 12, refrigerating effect is improved, the condenser pipes 26 and the condenser capillary pipes 27 in the condenser 12 are copper pipes, heat exchange speed is accelerated by utilizing the characteristics of the copper pipes, and efficiency is improved.
The air guide cover 22 and the dustproof filter screen are arranged between the evaporation box 6 and the case 1, the air guide cover 22 is close to the case 1, the dustproof filter screen is close to the evaporation box 6, when the air exhaust fan 7 exhausts air, the outside air enters through the louver 5 and then enters the evaporation box 6 and the evaporator 8 in sequence, the air guide cover 22 can guide the entering air to enable the air to enter the evaporation box 6, and the dustproof filter screen can prevent dust from entering the evaporation box 6 and affecting the work of the evaporator 8.
The compressor 10 is fixed in the case 1 through the hoop 9 of the compressor 10.
The temperature sensor 21 is fixed in the case 1 through a sensor hoop 20.
The working principle and the using process of the invention are as follows:
when the device is used, the device is installed at a proper position through the handle 2, when the device works, the control panel 4 electrically controls the air exhaust fan 7, the evaporator 8, the compressor 10, the condenser 12 and the temperature sensor 21 to work through the electric cabinet 3, the compressor 10 conveys the refrigerant to the condenser 12 through the first conveying pipe 11 for cooling and condensing operation, the condensed refrigerant is conveyed into the evaporator 8 through the second conveying pipe 13, the air exhaust fan 7 operates to suck the outside air into the evaporator 6 through the shutter 5, the outside air is contacted with the evaporator 8 after entering, the refrigerant and the air in the evaporator 8 carry out heat exchange to cool the air, the shutter 5 with the opening of the fan blade facing downwards enables the outside air to obliquely downwards enter the lower part of the evaporator 6, and in the process of cooling and heat exchange, the air enters from the lower part and gradually rises to increase the reaction time between the air and the evaporator 8, the cooling and heat exchange effects are improved, the cooled air leaves the device through the air outlet pipe 15 at the upper part under the control of the expansion valve 16, the refrigerant after heat exchange returns to the compressor 10 through the return pipe 14 again, the steps are repeated, the circulation work of the refrigerant is realized, the water generated in the evaporation tank 6 in the refrigeration process is discharged through the drain pipe 17 and the water outlet head 18, the circulating fan 23 is arranged at the bottom of the compressor 10 for cooling, and the generated heat is discharged through the air outlet window 19.
In light of the foregoing description of the preferred embodiment of the present invention, it is to be understood that numerous changes and modifications may be made without departing from the spirit and scope of the invention as defined by the appended claims. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.
Claims (9)
1. The utility model provides a high-efficient portable freeze dryer which characterized in that: the air conditioner comprises a case (1), wherein the front side wall and the rear side wall of the case (1) are bent inwards, and an electric cabinet (3), an evaporator (8), a compressor (10) and a condenser (12) are arranged in the case (1);
the electric cabinet (3) is connected with a control panel (4) arranged on the outer wall of the case (1) through signals, the evaporator (8) is positioned in the evaporation box (6), the side wall of the evaporation box (6) is fixed with an air exhaust fan (7), the bottom of the compressor (10) is provided with a circulating fan (23), the compressor (10) is communicated with the condenser (12) through a first conveying pipe (11), the condenser (12) is communicated with the evaporator (8) through a second conveying pipe (13), the evaporator (8) is communicated with the compressor (10) through a return pipe (14), the top end of the evaporator (8) is communicated with an air outlet pipe (15), the air outlet pipe (15) is connected with an expansion valve (16), the bottom of the evaporation box (6) is communicated with a drain pipe (17), the end part of the drain pipe (17) penetrates through the case (1) and is connected with a water outlet head (18), one side that quick-witted case (1) is close to evaporating case (6) is equipped with shutter (5), shutter (5) opening is down, one side that quick-witted case (1) is close to condenser (12) is equipped with air outlet window (19), air outlet window (19) opening is down, evaporating case (6) top is equipped with temperature sensor (21).
2. A high efficiency portable freeze dryer according to claim 1 wherein: the evaporator (8) comprises large-diameter evaporation tubes (24) on two sides and a plurality of evaporation capillary tubes (25) communicated with the evaporation tubes (24) on the two sides.
3. A high efficiency portable freeze dryer according to claim 2 wherein: and the evaporation tube (24) and the evaporation capillary tube (25) in the evaporator (8) are both copper tubes.
4. A high efficiency portable freeze dryer according to claim 1 wherein: the condenser (12) comprises large-diameter condensation pipes (26) on two sides and a plurality of condensation capillary pipes (27) communicated with the condensation pipes (26) on the two sides.
5. An efficient portable freeze dryer according to claim 4 wherein: and a condensation pipe (26) and a condensation capillary (27) in the condenser (12) are both copper pipes.
6. A high efficiency portable freeze dryer according to claim 1 wherein: an air guide cover (22) and a dustproof filter screen are arranged between the evaporation box (6) and the case (1), the air guide cover (22) is close to the case (1), and the dustproof filter screen is close to the evaporation box (6).
7. A high efficiency portable freeze dryer according to claim 1 wherein: the top of the case (1) is fixed with a handle (2).
8. A high efficiency portable freeze dryer according to claim 1 wherein: the compressor (10) is fixed in the case (1) through the compressor hoop (9).
9. A high efficiency portable freeze dryer according to claim 1 wherein: the temperature sensor (21) is fixed in the case (1) through a sensor hoop (20).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111312959.5A CN114076505A (en) | 2021-11-08 | 2021-11-08 | High-efficient portable freeze dryer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111312959.5A CN114076505A (en) | 2021-11-08 | 2021-11-08 | High-efficient portable freeze dryer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114076505A true CN114076505A (en) | 2022-02-22 |
Family
ID=80283633
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111312959.5A Pending CN114076505A (en) | 2021-11-08 | 2021-11-08 | High-efficient portable freeze dryer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114076505A (en) |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2216219Y (en) * | 1994-09-27 | 1995-12-27 | 乐正伟 | Thermantidote |
| CN2612911Y (en) * | 2003-03-20 | 2004-04-21 | 王永明 | Integral style cold drying machine |
| CN2680709Y (en) * | 2003-11-24 | 2005-02-23 | 陆元坤 | Freezing type drier |
| CA2697699A1 (en) * | 2007-08-28 | 2009-03-12 | Arzneimittel Gmbh Apotheker Vetter & Co. Ravensburg | Device for controlling the temperature of products to be frozen |
| CN204331903U (en) * | 2014-12-16 | 2015-05-13 | 长沙金吉智能科技有限公司 | A kind of automatic vending machine cooling device |
| CN108088014A (en) * | 2018-01-30 | 2018-05-29 | 盐城永悦新材料有限公司 | A kind of air conditioner for powdery paints production |
| CN109028638A (en) * | 2018-06-27 | 2018-12-18 | 芜湖盘云石磨新能源科技有限公司 | A kind of minitype air conditioner long-life heat pump assembly |
| US20200080777A1 (en) * | 2018-09-10 | 2020-03-12 | Michael B. McNeil | Herb essential oil processing equipment |
| CN210951977U (en) * | 2019-12-10 | 2020-07-07 | 滁州市仙迪节能科技有限公司 | Air source heat pump with high-energy-efficiency-ratio and high-efficiency frequency conversion function |
| CN113405324A (en) * | 2021-07-21 | 2021-09-17 | 广东葆德科技有限公司 | Low-pressure freeze dryer |
-
2021
- 2021-11-08 CN CN202111312959.5A patent/CN114076505A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2216219Y (en) * | 1994-09-27 | 1995-12-27 | 乐正伟 | Thermantidote |
| CN2612911Y (en) * | 2003-03-20 | 2004-04-21 | 王永明 | Integral style cold drying machine |
| CN2680709Y (en) * | 2003-11-24 | 2005-02-23 | 陆元坤 | Freezing type drier |
| CA2697699A1 (en) * | 2007-08-28 | 2009-03-12 | Arzneimittel Gmbh Apotheker Vetter & Co. Ravensburg | Device for controlling the temperature of products to be frozen |
| CN204331903U (en) * | 2014-12-16 | 2015-05-13 | 长沙金吉智能科技有限公司 | A kind of automatic vending machine cooling device |
| CN108088014A (en) * | 2018-01-30 | 2018-05-29 | 盐城永悦新材料有限公司 | A kind of air conditioner for powdery paints production |
| CN109028638A (en) * | 2018-06-27 | 2018-12-18 | 芜湖盘云石磨新能源科技有限公司 | A kind of minitype air conditioner long-life heat pump assembly |
| US20200080777A1 (en) * | 2018-09-10 | 2020-03-12 | Michael B. McNeil | Herb essential oil processing equipment |
| CN210951977U (en) * | 2019-12-10 | 2020-07-07 | 滁州市仙迪节能科技有限公司 | Air source heat pump with high-energy-efficiency-ratio and high-efficiency frequency conversion function |
| CN113405324A (en) * | 2021-07-21 | 2021-09-17 | 广东葆德科技有限公司 | Low-pressure freeze dryer |
Non-Patent Citations (1)
| Title |
|---|
| 杨丽珍: "《导识设计的材料与工艺》", 20 April 2017 * |
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