CN209378487U - A kind of vacuum freeze drier - Google Patents
A kind of vacuum freeze drier Download PDFInfo
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- CN209378487U CN209378487U CN201821883708.6U CN201821883708U CN209378487U CN 209378487 U CN209378487 U CN 209378487U CN 201821883708 U CN201821883708 U CN 201821883708U CN 209378487 U CN209378487 U CN 209378487U
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Abstract
A kind of vacuum freeze drier provided by the utility model, comprising: be frozen and dried cabinet；At least two cold-trap cabins are equipped with cold-trap pipe positioned at being frozen and dried on the outside of cabinet in the cold-trap cabin, a pair of 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；The third interface connection of the tee tube is frozen and dried cabinet；Multiple cold-trap pipes for being arranged in juxtaposition and being in same level height form one group of cold-trap row, and the same cold-trap is arranged each cold-trap pipe and is sequentially communicated；The outermost cold-trap pipe of the cold-trap row of different height is sequentially communicated from top to bottom；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.The utility model is arranged cold-trap and arranges, so that its refrigerating effect is more evenly.
Description
Technical field
The utility model 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 plate interlayer be equipped with cold-trap pipe, cold-trap pipe setting it is unreasonable, cause
Refrigerating effect is uneven.
Utility model content
(1) technical problems to be solved
The purpose of the utility model is to provide a kind of vacuum freeze drier, solve existing vacuum freeze drier its
The non-uniform defect of refrigerating effect.
(2) technical solution
In order to solve the above-mentioned technical problem, a kind of vacuum freeze drier provided by the utility model, comprising: drying is cold
Freeze cabinet；
At least two cold-trap cabins are equipped with cold-trap pipe positioned at being frozen and dried on the outside of cabinet in the cold-trap cabin, a pair of described cold
Trap cabin side is respectively arranged with vacuum electric valve, and the external tee tube two of them of vacuum electric valve on a pair of cold-trap cabin connect
Mouthful；The third interface connection of the tee tube is frozen and dried cabinet；Multiple cold-traps being arranged in juxtaposition and be in same level height
Pipe forms one group of cold-trap row, and the same cold-trap is arranged each cold-trap pipe and is sequentially communicated.The cold-trap row's of different height is outermost cold
Trap pipe is sequentially communicated from top to bottom；
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, vacuum system or refrigeration system open or close；In process of production, the control system control ice melting system and system
Cooling 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
Ice-melt operation, and alternately switch.The utility model uses the cold-trap cabin of two independent controls, and controls ice-melt using control system
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 is 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 is saved simultaneously
Water has accomplished continuous continual production.The control system SIEMENS PLC of the utility model, touch screen and PC computer；Orderly
The each system of control operation, PLC acquires signal by sensor, according to the technological requirements, handles signal, output control is ordered
It enables；In addition to hanger rail movement system needs people to be manually operated, other can realize automation, intelligentized control method.This electric-control system can
Touch screen and computer operate simultaneously, can also operate respectively, improve the reliable of system.The flexible ease for operation of touch screen control
Powerful monitoring capacity, data record and analysis ability with computer guarantee that production is gone on smoothly with what technique required.This is practical new
Type is arranged cold-trap and arranges, 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 utility model uses parallel compressor unit, and electronic type is swollen
The temperature of swollen valve, intelligent control evaporating temperature and pressure, guarantee cold-trap and quick-freezer meets technique and requires, high reliablity, surely
Fixed 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 utility model, has the advantage that
1, the utility model setting cold-trap is arranged, so that its refrigerating effect is more evenly.The utility model uses dryness storehouse simultaneously
With cold-trap freight space in it is same be connected be frozen and dried in case, operation carry out on the same device, simplify operation, together
When its clean operation carried out in same cabinet, internal structure is simpler, and dead angle Tong Duotai is compared to can be less, it is easier to meet
The standard of GMP.
2, the control system in the utility model uses SIEMENS PLC, touch screen and PC computer；The each system of orderly control
The operation of system, PLC acquire signal by sensor, according to the technological requirements, handle signal, export control command；Except hanger rail operates
System needs people's manual operation outer, other can realize automation, intelligentized control method.This electric-control system touch-screen-enabled and computer are same
When operate, can also operate respectively, improve the reliable of system.The powerful prison of the flexible ease for operation and computer of touch screen control
Control ability, data record and analysis ability guarantee that production is gone on smoothly with what technique required.
3, the utility model uses parallel compressor unit, electronic expansion valve, intelligent control evaporating temperature and pressure, guarantees
The temperature of cold-trap and quick-freezer meets technique requirement, high reliablity, stabilizing energy-saving.
Detailed description of the invention
Fig. 1 is the cold-trap cabin structure schematic diagram of the vacuum freeze drier of the embodiments of the present invention 1；
Fig. 2 is the structure flow chart of the vacuum freeze drier of the embodiments of the present invention 1；
Fig. 3 is the ice melting system structure chart of the vacuum freeze drier of the embodiments of the present invention 1；
Fig. 4 is the side plate side view of the vacuum freeze drier of the embodiments of the present invention 1；
Fig. 5 is the icecap structure chart of the vacuum freeze drier of the embodiments of the present invention 1；
Fig. 6 is the control system flow diagram of the vacuum freeze drier of the embodiments 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 embodiment of the present utility model is described in further detail.Below
Example is not intended to limit the scope of the present invention for illustrating the utility model.
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 utility model, packet
It includes: being frozen and dried cabinet 1 and two cold-trap cabins 2, positioned at being frozen and dried on the outside of cabinet, cold-trap pipe 3 is equipped in the cold-trap cabin,
A pair of cold-trap cabin side is respectively arranged with vacuum electric valve 4, the external tee tube 5 of vacuum electric valve on a pair of cold-trap cabin
Two of them interface；The third interface connection of the tee tube is frozen and dried cabinet；Refrigeration system 6 connects cold-trap pipe；The system
Cooling system is used to freeze to being frozen and dried material in case；Vacuum system 7 is frozen and dried vacuum degree in case for maintaining；Melt
Ice 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 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 control system Siemens of the utility model
PLC, touch screen and PC computer；The operation of the orderly each system of control, PLC acquire signal by sensor, are wanted according to technique
It asks, handles signal, export control command；In addition to hanger rail movement system needs people to be manually operated, other can realize automation, intelligence
Energyization control.This electric-control system touch-screen-enabled and computer operate simultaneously, can also operate respectively, improve the reliable of system.Touching
The flexible ease for operation and the monitoring capacity that computer is powerful, data record and analysis ability for touching screen control, guarantee production and technique
It is required that go on smoothly.
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.The utility model
Cold-trap is arranged to arrange, 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 utility model uses parallel compressor unit, electronic expansion valve, intelligent control evaporating temperature
And pressure, guarantee that the temperature of cold-trap and quick-freezer meets technique requirement, high reliablity, stabilizing energy-saving.The vacuum refrigeration is dry
Dry machine further includes heating system 17, and the heating system connects heat exchange evaporation comb；The heat exchange evaporation comb protrudes into dryness storehouse；It is described dry
Dryness storehouse is equipped with inside dry household freezer；The heating system is for heating dryness storehouse.The vacuum pump group of the utility model
Effect: remain at the vacuum degree of tank body under certain vacuum pressure, two, dryness storehouse and cold-trap cabin generate pressure difference,
Steam is constantly flowed to cold-trap cabin.Vacuum need to generally be maintained at 120Pa hereinafter, the difference according to product is different；As truly
Reciprocal of duty cycle is excessively high, the solid ice inside raw material, will be converted to water, and water becomes vapour again, and the product worked it out in this way is easy for generating
It atrophy and 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 utility model passes through steaming
Vapour heats side plate, hangs over frost on cold-trap pipe by pushing side plate movement quickly to abolish, other steam is cooperated to heat deicing,
Its deicing 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 in the refrigeration system of the utility model
As 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 embodiments of the present invention are implemented, when the work of ice-melt tank when one of cold trap ice melting, cold-trap melts
The water of change 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, in ice-melt tank
It is vacuum state, 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 processed 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 operation, another cold-trap cabin carries out low-pressure steam ice-melt under vacuum state and operates, and alternately switches；When the technology can save
Between；Defrosting water is saved simultaneously, has accomplished continuous continual production；Side plate is heated by steam simultaneously, by pushing side plate fortune
Dynamic quickly 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 utility model, wherein the structure of each component, connection type etc. are all can be with
It is varied, all equivalents and improvement carried out on the basis of technical solutions of the utility model should not exclude
Except the protection scope of the utility model.
Claims (6)
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；The ice melting system includes ice-melt tank, and the ice-melt tank is by melting
The bottom in ice piping connection 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；Multiple cold-trap pipes for being arranged in juxtaposition and being in same level height form
One group of cold-trap row, the same cold-trap are arranged each cold-trap pipe and are sequentially communicated；The outermost cold-trap pipe of the cold-trap row of different height is certainly
It is sequentially communicated under above.
2. vacuum freeze drier as described in claim 1, 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.
3. vacuum freeze drier as claimed in claim 2, 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.
4. vacuum freeze drier as claimed in claim 3, 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.
5. vacuum freeze drier as claimed in claim 4, 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.
6. the vacuum freeze drier as described in claims 1 or 2 or 3 or 4 or 5, which is characterized in that it further include heating system,
The heating system connects heat exchange evaporation comb；The heat exchange evaporation comb protrudes into dryness storehouse；Described be frozen and dried inside case is equipped with drying
Storehouse；The heating system is for heating dryness storehouse.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821883708.6U CN209378487U (en) | 2018-11-15 | 2018-11-15 | A kind of vacuum freeze drier |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821883708.6U CN209378487U (en) | 2018-11-15 | 2018-11-15 | A kind of vacuum freeze drier |
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| Publication Number | Publication Date |
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| CN209378487U true CN209378487U (en) | 2019-09-13 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201821883708.6U Active CN209378487U (en) | 2018-11-15 | 2018-11-15 | A kind of vacuum freeze drier |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115479452A (en) * | 2022-10-12 | 2022-12-16 | 烟台绿冷热能科技有限公司 | Vacuum freeze-drying system and control method |
-
2018
- 2018-11-15 CN CN201821883708.6U patent/CN209378487U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115479452A (en) * | 2022-10-12 | 2022-12-16 | 烟台绿冷热能科技有限公司 | Vacuum freeze-drying system and control method |
| CN115479452B (en) * | 2022-10-12 | 2024-03-22 | 烟台绿冷热能科技有限公司 | Vacuum freeze-drying system and control method |
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