CN109323536A - A kind of vacuum freeze drier - Google Patents
A kind of vacuum freeze drier Download PDFInfo
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- CN109323536A CN109323536A CN201811361889.0A CN201811361889A CN109323536A CN 109323536 A CN109323536 A CN 109323536A CN 201811361889 A CN201811361889 A CN 201811361889A CN 109323536 A CN109323536 A CN 109323536A
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- Prior art keywords
- cold
- trap
- vacuum
- ice
- frozen
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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
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- 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
- F25B1/00—Compression machines, plants or systems with non-reversible cycle
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- 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
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Molecular Biology (AREA)
- Drying Of Solid Materials (AREA)
Abstract
A kind of vacuum freeze drier provided by the invention, comprising: be frozen and dried cabinet；At least two cold-trap cabins；Refrigeration system connects cold-trap pipe；The refrigeration system is used to freeze to being frozen and dried material in case；Vacuum system is frozen and dried vacuum degree in case for maintaining；Ice melting system, for melting the frost to freeze in cold-trap cabin；Control system, the control system is electrically connected ice melting system, vacuum system and refrigeration system, for controlling opening or closing for ice melting system, vacuum system or refrigeration system；In process of production, the control system control ice melting system and refrigeration system, so that one of cold-trap cabin, which carries out cold-trap, catches water operation, another cold-trap cabin carries out low-pressure steam ice-melt under vacuum state and operates, and alternately switches.The present invention, which solves its cold-trap cabin of existing vacuum freeze drier and needs first to carry out cold-trap, catches water, carries out low-pressure steam ice-melt under vacuum state, the long defect of short time consumption after to be frozen again.
Description
Technical field
The present invention relates to drying machine technical fields, and in particular to a kind of vacuum freeze drier.
Background technique
Traditional drying can cause material shrinkage, destroy cell.And it is freeze-dried and refers to by distilling from the biology freezed
Moisture removal or the process of other solvents are gone in product.Distillation refers to solvent, such as water, as dry ice, without liquid, from
Solid-state directly becomes gaseous process.It is freeze-dried obtained product to be referred to as lyophilized products (lyophilizer), which, which is referred to as, freezes
It is dry.The structure of sample will not be destroyed in freeze drying process, because solid content is support by the black ice on its position.
In ice distillation, it can leave hole in dry surplus materials.Thus remain product biological and chemical structure and
Its active integrality.In the lab, freeze-drying has many different purposes, it is in many biochemistries and pharmacy application
It is indispensable.It is used to obtain the biomaterial that can be saved over a long time, such as microculture, enzyme, blood and drug,
In addition to the stability of long-term preservation, its intrinsic bioactivity and structure is also retained.For this purpose, freeze-drying be used to prepare to be used as
The tissue sample of structural research (such as electron microscopy study).Freeze-drying is also applied in chemical analysis, it can obtain dry state
Sample or concentrating sample are to increase analysis susceptibility.Freeze-drying stablizes sample composition, also varies without chemical composition, is reason
The analysis supplementary means thought.Freeze-drying can be with naturally-occurring.In natural conditions, this process is slow and unpredictable.
By lyophilization system, people improve, have segmented many steps, accelerate this process.Vacuum freeze drier will freeze
System, vacuum system, heat-conducting oil heating system, dehumidification system is combined integrated, significantly using memory box put material space into
The dry vacuum freezedrying of row.
The existing patent document application No. is CN201420045688.0 discloses " freeze dryer plate layer device for monitoring temperature
And freeze dryer " patent document, it discloses it in use, its cold-trap cabin needs first to carry out cold-trap to catch water, after to be frozen
Low-pressure steam ice-melt under vacuum state is carried out again, and repeatedly, short time consumption is long.
Summary of the invention
(1) technical problems to be solved
The object of the present invention is to provide a kind of vacuum freeze driers, and solving its cold-trap cabin of existing vacuum freeze drier needs
It first to carry out cold-trap and catch water, carry out low-pressure steam ice-melt under vacuum state, the long defect of short time consumption after to be frozen again.
(2) technical solution
In order to solve the above technical problem, the present invention provides a kind of vacuum freeze drier, comprising: be frozen and dried cabinet；
At least two cold-trap cabins are equipped with cold-trap pipe, a pair of cold-trap cabin positioned at being frozen and dried on the outside of cabinet in the cold-trap cabin
Side is respectively arranged with vacuum electric valve, the external tee tube two of them interface of vacuum electric valve on a pair of cold-trap cabin；It should
The third interface connection of tee tube is frozen and dried cabinet；
Refrigeration system connects cold-trap pipe；The refrigeration system is used to freeze to being frozen and dried material in case；
Vacuum system is frozen and dried vacuum degree in case for maintaining；
Ice melting system, for melting the frost to freeze in cold-trap cabin；
Control system, the control system is electrically connected ice melting system, vacuum system and refrigeration system, for controlling ice-melt system
System, vacuum system or refrigeration system open or close；In process of production, the control system control ice melting system and refrigeration
System, so that one of cold-trap cabin, which carries out cold-trap, catches water operation, another cold-trap cabin carries out low-pressure steam under vacuum state and melts
Ice operation, and alternately switch.The present invention use two independent controls cold-trap cabin, and using control system control ice melting system and
Vacuum system and system is made so that in process of production, a cold-trap cabin carries out cold-trap and catches water operation, another cold-trap cabin into
Low-pressure steam ice-melt operates under row vacuum state, and alternately switches；The technology can save the time；Defrosting water is saved simultaneously, is done
Continuous continual production is arrived.Control system SIEMENS PLC of the invention, touch screen and PC computer；Orderly control is each
The operation of a system, PLC acquire signal by sensor, according to the technological requirements, handle signal, export control command；Except hanger rail
Movement system needs people's manual operation outer, other can realize automation, intelligentized control method.This electric-control system touch-screen-enabled and electricity
Brain operates simultaneously, can also operate respectively, improves the reliable of system.The flexible ease for operation and computer of touch screen control are powerful
Monitoring capacity, data record and analysis ability guarantee that production and technique required goes on smoothly.
Preferably, multiple cold-trap pipes for being arranged in juxtaposition and being in same level height form one group of cold-trap row, same cold
Trap is arranged each cold-trap pipe and is sequentially communicated.
Preferably, the outermost cold-trap pipe of the cold-trap row of different height is sequentially communicated from top to bottom.Present invention setting is cold
Trap row, so that its refrigerating effect is more evenly.
Preferably, the ice melting system includes ice-melt tank, and the ice-melt tank passes through the bottom in ice-melt piping connection cold-trap cabin.
Preferably, the ice-melt tank outer connected water outlet pipe is equipped with suction pump on the outlet pipe；One is passed through in the ice-melt tank
Group steam pipe.
Preferably, the vacuum system is frozen and dried inside case by vacuum line connection；The vacuum line is located at dry
At the top of dry household freezer.
Preferably, the cold-trap pipe is two groups, and the cold-trap cabin passes through the external refrigeration system of independent two groups of refrigeration pipelines.
Preferably, the refrigeration system includes the compressor set that multiple groups are arranged in juxtaposition, and the compressor set passes through cryovial
Road connects cold-trap pipe, and the cryovial road is equipped with electric expansion valve.The present invention uses parallel compressor unit, electronic type expansion
Valve, intelligent control evaporating temperature and pressure guarantee that the temperature of cold-trap and quick-freezer meets technique requirement, and high reliablity is stablized
Energy conservation.
Preferably, the vacuum freeze drier further includes heating system, and the heating system connects heat exchange evaporation comb；It is described
Heat exchange evaporation comb protrudes into dryness storehouse；Described be frozen and dried inside case is equipped with dryness storehouse；The heating system be used for dryness storehouse into
Row heating.
(3) beneficial effect
A kind of vacuum freeze drier provided by the invention, has the advantage that
1, the present invention using dryness storehouse and cold-trap freight space in it is same be connected be frozen and dried in case, operation is set at same
Standby upper progress, simplifies operation, while its clean operation carries out in same cabinet, and internal structure is simpler, and dead angle is logical more
Platform is less compared to meeting, it is easier to meet the standard of GMP.
2, the control system in the present invention uses SIEMENS PLC, touch screen and PC computer；The orderly each system of control
Operation, PLC acquire signal by sensor, according to the technological requirements, handle signal, export control command；Except hanger rail movement system
Need people's manual operation outer, other can realize automation, intelligentized control method.This electric-control system touch-screen-enabled and computer are grasped simultaneously
Make, can also operate respectively, improve the reliable of system.The powerful monitoring energy of the flexible ease for operation and computer of touch screen control
Power, data record and analysis ability guarantee that production is gone on smoothly with what technique required.
3, the present invention uses parallel compressor unit, electronic expansion valve, intelligent control evaporating temperature and pressure, guarantees cold-trap
Meet technique requirement, high reliablity, stabilizing energy-saving with the temperature of quick-freezer.
Detailed description of the invention
Fig. 1 is the cold-trap cabin structure schematic diagram of the vacuum freeze drier of the embodiment of the present invention 1；
Fig. 2 is the structure flow chart of the vacuum freeze drier of the embodiment of the present invention 1；
Fig. 3 is the ice melting system structure chart of the vacuum freeze drier of the embodiment of the present invention 1；
Fig. 4 is the side plate side view of the vacuum freeze drier of the embodiment of the present invention 1；
Fig. 5 is the icecap structure chart of the vacuum freeze drier of the embodiment of the present invention 1；
Fig. 6 is the control system flow diagram of the vacuum freeze drier of the embodiment of the present invention 1.
1, it is frozen and dried cabinet, 2, cold-trap cabin, 3, cold-trap pipe, 4, vacuum electric valve, 5, tee tube, 6, refrigeration system, 7,
Vacuum system, 8, ice melting system, 9, control system, 10, cold-trap row, 11, ice-melt tank, 12, outlet pipe, 13, suction pump, 14, steaming
Vapor pipeline, 15, compressor set, 16, freezing pipeline, 17, heating system, 18, side plate, 19, fixation hole, 20, heating chamber, 21, broken
Ice device.
Specific embodiment
With reference to the accompanying drawings and examples, specific embodiments of the present invention will be described in further detail.Following instance
For illustrating the present invention, but it is not intended to limit the scope of the invention.
Cold-trap catches water: under vacuum conditions, the solid ice inside raw material is directly sublimed into water without the conversion of liquid
Vapour；Dryness storehouse and cold-trap cabin form certain pressure difference because there is vacuum pump group constantly vacuumizing, and steam is constantly flowed to cold-trap cabin
Dynamic, cold-trap coil temperature becomes ice and is wrapped on coil pipe at -25 degrees Celsius hereinafter, steam is directly condensed on coil pipe at this time
Face is commonly called as catching water for cold-trap.
Embodiment 1:
As shown in Figure 1, Figure 2, shown in Fig. 3, Fig. 4, Fig. 5 and Fig. 6, a kind of vacuum freeze drier provided by the invention, comprising: dry
Freezer box 1 and two cold-trap cabins 2 are equipped with cold-trap pipe 3 positioned at being frozen and dried on the outside of cabinet in the cold-trap cabin, it is a pair of described in
Cold-trap cabin side is respectively arranged with vacuum electric valve 4, external 5 two of them of tee tube of vacuum electric valve on a pair of cold-trap cabin
Interface；The third interface connection of the tee tube is frozen and dried cabinet；Refrigeration system 6 connects cold-trap pipe；The refrigeration system is used
In freezing to being frozen and dried material in case；Vacuum system 7 is frozen and dried vacuum degree in case for maintaining；Ice melting system 8,
For melting the frost to freeze in cold-trap cabin；Control system 9, the control system are electrically connected ice melting system, vacuum system and system
Cooling system, for controlling opening or closing for ice melting system, vacuum system or refrigeration system；In process of production, the control
System controls ice melting system and refrigeration system so that one of cold-trap cabin, which carries out cold-trap, catches water operation, another cold-trap cabin into
Low-pressure steam ice-melt operates under row vacuum state, and alternately switches.Control system SIEMENS PLC of the invention, touch screen and
PC computer；The operation of the orderly each system of control, PLC acquire signal by sensor, according to the technological requirements, handle signal,
Export control command；In addition to hanger rail movement system needs people to be manually operated, other can realize automation, intelligentized control method.This
Electric-control system touch-screen-enabled and computer operate simultaneously, can also operate respectively, improve the reliable of system.The spirit of touch screen control
Ease for operation living and the powerful monitoring capacity of computer, data record and analysis ability, guarantee that production and technique requires it is smooth into
Row.
Multiple cold-trap pipes for being arranged in juxtaposition and being in same level height form one group of cold-trap row 10, and the same cold-trap row is each
A cold-trap pipe is sequentially communicated.The outermost cold-trap pipe of the cold-trap row of different height is sequentially communicated from top to bottom.Present invention setting
Cold-trap row, so that its refrigerating effect is more evenly.
The ice melting system includes ice-melt tank 11, and the ice-melt tank passes through the bottom in ice-melt piping connection cold-trap cabin.It is described
Ice-melt tank outer connected water outlet pipe 12 is equipped with suction pump 13 on the outlet pipe；One group of steam pipe 14 is passed through in the ice-melt tank.
The vacuum system is frozen and dried inside case by vacuum line connection；The vacuum line, which is located at, is frozen and dried case
Top.The cold-trap pipe is two groups, and the cold-trap cabin passes through the external refrigeration system of independent two groups of refrigeration pipelines.The refrigeration system
System includes the compressor set 15 that multiple groups are arranged in juxtaposition, and the compressor set connects cold-trap pipe, the freezing by freezing pipeline 16
Electric expansion valve is housed on pipeline.The present invention uses parallel compressor unit, electronic expansion valve, intelligent control evaporating temperature and pressure
Power guarantees that the temperature of cold-trap and quick-freezer meets technique requirement, high reliablity, stabilizing energy-saving.The vacuum freeze drier
It further include heating system 17, the heating system connects heat exchange evaporation comb；The heat exchange evaporation comb protrudes into dryness storehouse；The drying is cold
Freeze and is equipped with dryness storehouse inside case；The heating system is for heating dryness storehouse.The effect of vacuum pump group of the invention:
One, remain at the vacuum degree of tank body under certain vacuum pressure, two, dryness storehouse and cold-trap cabin generate pressure difference, and steam is not
Break and is flowed to cold-trap cabin.Vacuum need to generally be maintained at 120Pa hereinafter, the difference according to product is different；If vacuum is spent
Height, the solid ice inside raw material, will be converted to water, and water becomes vapour again, the product worked it out in this way be easy for generating atrophy and
It collapses, influences quality, and water is not easy to remove again, influences production efficiency.
A side plate 18 is equipped in the cold-trap cabin, the side plate is equipped with multiple correspond with cold-trap pipe and is put into fixation
Hole 19, multiple cold-trap pipes are set in fixation hole, and then slideably relatively fixed on side plate, which can be along cold-trap
Pipe sliding, the side plate, which is additionally provided with, is centered around heating chamber 20 interconnected on fixation hole, the heating chamber steam-out (SO) pipeline,
Fixation hole both ends outer periphery is fixed there are four icecap 21, and the icecap is sharp cone distal.The present invention is added by steam
Hot side plate hangs over frost on cold-trap pipe by pushing side plate movement quickly to abolish, cooperates other steam to heat deicing, remove
Ice is fast, and it is convenient to operate.
Air-cooled lobe pump+sliding vane rotary pump can be used as work pump group, single sliding vane rotary pump conduct in refrigeration system of the invention
Forepump, oil-sealed pump is more sensitive to steam, and the speed of evacuation is fast, and pressure is low, and each pump price is high.
When the embodiment of the present invention is implemented, when the work of ice-melt tank when one of cold trap ice melting, what cold-trap melted
Water flows into ice-melt tank from top to bottom, and when the water level upper limit, draw water pump startup, and when water level lower limit, suction pump stops, and is true in ice-melt tank
Dummy status guarantees that water temperature rises to cold-trap 30 degree or sos of water vapour is past, thawing is gone to be wrapped in the ice above coil pipe.Control system
System controls ice melting system and vacuum system and system is made, so that in process of production, a cold-trap cabin carries out cold-trap and catches water behaviour
Make, another cold-trap cabin carries out low-pressure steam ice-melt under vacuum state and operates, and alternately switches；The technology can save the time；
Defrosting water is saved simultaneously, has accomplished continuous continual production；Side plate is heated by steam simultaneously, by pushing side plate movement fast
Speed, which has been abolished, hangs over frost on cold-trap pipe, and other steam is cooperated to heat deicing.
The various embodiments described above are merely to illustrate the present invention, wherein the structure of each component, connection type etc. are all can be
Variation, all equivalents and improvement carried out based on the technical solution of the present invention should not be excluded of the invention
Except protection scope.
Claims (9)
1. a kind of vacuum freeze drier characterized by comprising
It is frozen and dried cabinet；
At least two cold-trap cabins are equipped with cold-trap pipe, a pair of cold-trap cabin positioned at being frozen and dried on the outside of cabinet in the cold-trap cabin
Side is respectively arranged with vacuum electric valve, the external tee tube two of them interface of vacuum electric valve on a pair of cold-trap cabin；It should
The third interface connection of tee tube is frozen and dried cabinet；
Refrigeration system connects cold-trap pipe；The refrigeration system is used to freeze to being frozen and dried material in case；
Vacuum system is frozen and dried vacuum degree in case for maintaining；
Ice melting system, for melting the frost to freeze in cold-trap cabin；
Control system, the control system is electrically connected ice melting system, vacuum system and refrigeration system, for controlling ice-melt system
System, vacuum system or refrigeration system open or close；In process of production, the control system control ice melting system and refrigeration
System, so that one of cold-trap cabin, which carries out cold-trap, catches water operation, another cold-trap cabin carries out low-pressure steam under vacuum state and melts
Ice operation, and alternately switch.
2. vacuum freeze drier as described in claim 1, which is characterized in that multiple to be arranged in juxtaposition and in same level height
The cold-trap pipe of degree forms one group of cold-trap row, and the same cold-trap is arranged each cold-trap pipe and is sequentially communicated.
3. vacuum freeze drier as claimed in claim 2, which is characterized in that the cold-trap row's of different height is outermost cold
Trap pipe is sequentially communicated from top to bottom.
4. the vacuum freeze drier as described in claims 1 or 2 or 3, which is characterized in that the ice melting system includes ice-melt
Tank, the ice-melt tank pass through the bottom in ice-melt piping connection cold-trap cabin.
5. vacuum freeze drier as claimed in claim 4, which is characterized in that the outer connected water outlet pipe of the ice-melt tank, it is described go out
Suction pump is housed on water pipe；One group of steam pipe is passed through in the ice-melt tank.
6. vacuum freeze drier as claimed in claim 5, which is characterized in that the vacuum system is connected by vacuum line
It is frozen and dried inside case；The vacuum line, which is located at, is frozen and dried box top.
7. vacuum freeze drier as claimed in claim 6, which is characterized in that the cold-trap pipe is two groups, the cold-trap cabin
Pass through the external refrigeration system of independent two groups of refrigeration pipelines.
8. vacuum freeze drier as claimed in claim 7, which is characterized in that the refrigeration system includes that multiple groups are arranged in juxtaposition
Compressor set, the compressor set is equipped with electric expansion valve by freezing piping connection cold-trap pipe, cryovial road.
9. the vacuum freeze drier as described in claims 1 or 2 or 3, which is characterized in that it further include heating system, it is described to add
Hot systems connect heat exchange evaporation comb；The heat exchange evaporation comb protrudes into dryness storehouse；Described be frozen and dried inside case is equipped with dryness storehouse；It is described
Heating system is for heating dryness storehouse.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811361889.0A CN109323536A (en) | 2018-11-15 | 2018-11-15 | A kind of vacuum freeze drier |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811361889.0A CN109323536A (en) | 2018-11-15 | 2018-11-15 | A kind of vacuum freeze drier |
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| CN109323536A true CN109323536A (en) | 2019-02-12 |
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| CN201811361889.0A Pending CN109323536A (en) | 2018-11-15 | 2018-11-15 | A kind of vacuum freeze drier |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110367543A (en) * | 2019-08-29 | 2019-10-25 | 福建惟乐生物科技有限责任公司 | A kind of preparation method and its equipment of Freeze-dry Powder of Probioctics |
| CN113154807A (en) * | 2020-02-26 | 2021-07-23 | 浙江星菜农业科技有限公司 | Continuous processing type freeze drying system and method |
| CN114688864A (en) * | 2020-12-31 | 2022-07-01 | 浙江同景新能源集团有限公司 | Cold trap ice melting and water draining method and system of freeze-drying equipment |
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| CN108007075A (en) * | 2017-10-16 | 2018-05-08 | 浙江冠峰食品机械有限公司 | The defrosting de-icing method of vacuum freeze drier system and the system |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110367543A (en) * | 2019-08-29 | 2019-10-25 | 福建惟乐生物科技有限责任公司 | A kind of preparation method and its equipment of Freeze-dry Powder of Probioctics |
| CN113154807A (en) * | 2020-02-26 | 2021-07-23 | 浙江星菜农业科技有限公司 | Continuous processing type freeze drying system and method |
| CN114688864A (en) * | 2020-12-31 | 2022-07-01 | 浙江同景新能源集团有限公司 | Cold trap ice melting and water draining method and system of freeze-drying equipment |
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Application publication date: 20190212 |