CN214892196U - Freeze dryer with external hanging device - Google Patents
Freeze dryer with external hanging device Download PDFInfo
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- CN214892196U CN214892196U CN202120244370.5U CN202120244370U CN214892196U CN 214892196 U CN214892196 U CN 214892196U CN 202120244370 U CN202120244370 U CN 202120244370U CN 214892196 U CN214892196 U CN 214892196U
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Abstract
The utility model relates to the technical field of freeze drying equipment, in particular to a freeze dryer with an external hanging device, which comprises a freeze drying bin, an equipment bin and the external hanging device which are arranged integrally; a first refrigerating system and a second refrigerating system are arranged in the freeze-drying bin and the equipment bin, and the refrigerating temperature of the second refrigerating system is lower than that of the first refrigerating system; the freeze-drying bin is internally provided with a cold trap and a plurality of clapboards, and each clapboard consists of an upper heating layer, a middle copper coil and a lower bottom plate; the external hanging device is arranged outside the freeze-drying bin and is communicated with the freeze-drying bin; the freeze-drying bin is provided with a vacuum valve and an air valve; this device has solved traditional freeze dryer and has influenced freeze-drying efficiency, plug-in bottle temperature and hang the problem that low influence product quality because of single cold source forms the ice sheet.
Description
Technical Field
The utility model relates to a freeze drying equipment technical field specifically relates to a freeze dryer with external device.
Background
The freeze dryer is originated from vacuum freeze drying technology in the 20 th of 19 th century, and enters the 21 st century, the vacuum freeze drying technology is widely applied in the fields except the fields of medicines, biological products, foods, blood products and active substances, and freeze drying is a technology for drying by utilizing the sublimation principle, and is a process of quickly freezing a dried substance at a low temperature and then directly sublimating frozen water molecules into water vapor to escape in a proper vacuum environment.
Chinese patent CN200820005319.3 discloses an external multi-manifold for a plate pre-freezing type freeze dryer. The utility model discloses a lack among the prior art can realize freeze-drying function, can carry out quick convenient drying process's freeze dryer to need not frozen medicine again. The external multi-manifold of the experimental freeze dryer comprises a freeze dryer main body, wherein a multi-manifold connector is reserved on the freeze dryer main body; the cold trap is used for condensing water vapor and is positioned in the freeze dryer main body; the multi-manifold device is connected to a multi-manifold interface reserved on a freeze dryer main body sequentially through the vacuum flange interface and the vacuum valve and is connected to the cold trap in the freeze dryer body; and a plurality of flasks respectively connected to the manifold for containing the medicines to be lyophilized. According to the utility model discloses an experimental type freeze dryer joins externally manifold's function is comprehensive and use in a flexible way, has practiced thrift spare part through the cold trap that shares, has reduced manufacturing cost.
Most of the existing freeze dryers adopt a single cold source, so that water vapor forms an ice layer on the surface of the cold source in the process of freeze drying of medicines, and the freeze drying efficiency is influenced because ice is a poor thermal conductor; the existing freeze dryer processes the medicine which only needs to be dried but does not need to be frozen by arranging the external hanging device, but the external hanging bottle is communicated with the freeze drying bin, so that heat transfer can occur, the temperature in the external hanging bottle approaches to the temperature in the freeze drying bin after a long time, and the quality of the medicine is further influenced, and therefore, the freeze dryer which can remove the ice layer on the surface of a cold source and can keep the external hanging bottle at the normal temperature needs to be researched and developed.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a freeze dryer with external device has solved traditional freeze dryer and has influenced freeze-drying efficiency, external bottle temperature and cross the problem that influences product quality because of single cold source formation ice sheet.
The utility model provides a technical scheme that its technical problem adopted is:
the utility model provides a freeze dryer with an external hanging device, which comprises a freeze drying bin, an equipment bin and the external hanging device which are arranged in an integrated way; a first refrigerating system and a second refrigerating system are arranged in the freeze-drying bin and the equipment bin, and the refrigerating temperature of the second refrigerating system is lower than that of the first refrigerating system; the freeze-drying bin is internally provided with a cold trap and a plurality of clapboards, and each clapboard consists of an upper heating layer, a middle copper coil and a lower bottom plate; the copper coil pipe plays a role of an evaporator in a first refrigeration system, and the cold trap plays a role of an evaporator in a second refrigeration system; the external hanging device is arranged outside the freeze-drying bin and is communicated with the freeze-drying bin; the freeze-drying bin is provided with a vacuum valve and an air valve, the vacuum valve is communicated with a vacuum machine, a vacuum environment is provided for the freeze-drying bin, and sublimation of ice crystals in the medicine into water vapor is accelerated; at freeze-drying during operation, start first refrigerating system and second refrigerating system, because the temperature of cold-trap among the second refrigerating system is lower than first refrigerating system's copper coil's temperature, consequently the vapor in the freeze-drying storehouse condenses gradually on the cold-trap surface, thereby form the ice sheet on having avoided the copper coil, first refrigerating system's normal work has been guaranteed, through the zone of heating that sets up in the baffle, make temperature adjustment more nimble in the freeze-drying storehouse, the freeze dryer of having avoided single cold source is difficult to nimble temperature regulation's problem because of only refrigerating system.
Further, inside first compressor, first condenser and the first capillary of being provided with of equipment storehouse, first refrigerating system is including the first compressor, first condenser, first capillary and the copper coil pipe that communicate in proper order.
Further, the inside second compressor, second condenser and the second capillary that still is provided with of equipment storehouse, second refrigerating system is including the second compressor, second condenser, second capillary and the cold trap that communicate in proper order.
Further, the external device includes water bath, heat pipe and external bottle, the heat pipe with freeze-drying storehouse and external bottle between communicate, the water bath is fixed to be set up in the freeze-drying storehouse outside, the heat pipe runs through the water bath, the inside of water bath is provided with the heating plate, through carrying out water bath heating to the heat pipe, has not only not influenced the vapor flow direction freeze-drying storehouse in the external bottle, has guaranteed again that the temperature in the external bottle keeps under the normal atmospheric temperature condition, has avoided the time overlength to lead to the temperature in the external bottle to approach to the temperature in freeze-drying storehouse and influence the problem of the quality of medicine.
Further, a first temperature sensor is arranged inside the plug-in bottle.
Furthermore, the number of the partition plates is three, and the copper coil pipes are sequentially connected end to end.
Further, the cold trap is arranged below the three partition plates.
Further, the inner wall of the freeze-drying bin is provided with a second temperature sensor.
Further, a bin door is arranged on the freeze-drying bin.
The technical effects of the utility model:
compared with the prior art, the freeze dryer with the external hanging device of the utility model has the advantages that the first refrigeration system and the second refrigeration system are arranged, so that the water vapor in the freeze drying bin is gradually condensed on the surface of the cold trap, thereby avoiding the formation of an ice layer on the copper coil pipe and ensuring the normal work of the first refrigeration system; the heating layer in the partition plate is arranged, so that the temperature in the freeze-drying bin can be adjusted more flexibly, and the problem that the temperature of a freeze dryer with a single cold source is difficult to adjust flexibly due to only a refrigerating system is solved; carry out water bath heating to the heat pipe through setting up the water bath case, had not influenced the vapor flow direction freeze-drying storehouse in the outer hanging bottle, guaranteed again that the temperature in the outer hanging bottle keeps under the normal atmospheric temperature condition, avoided the time overlength to lead to the temperature in the outer hanging bottle to approach to the temperature in freeze-drying storehouse and influence the problem of the quality of medicine.
Drawings
FIG. 1 is a schematic view of the main structure of the present invention;
fig. 2 is a left side view of fig. 1 in the present invention;
fig. 3 is a schematic diagram of the refrigerating system of the present invention.
Wherein: the device comprises a freeze-drying bin 1, an equipment bin 2, a first compressor 3, a first condenser 4, a second compressor 5, a second condenser 6, a first capillary tube 7, a second capillary tube 8, a heating layer 9, a copper coil 10, a bottom plate 11, a cold trap 12, an air valve 13, a first temperature sensor 14, an externally hung bottle 15, a heat conduction tube 16, a heating sheet 17, a water bath tank 18, a vacuum valve 19, a second temperature sensor 20, a bin gate 21, an externally hung device 22, a first refrigeration system 23, a second refrigeration system 24 and a partition plate 25.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the accompanying drawings of the present invention will be combined to clearly and completely describe the technical solutions in the embodiments of the present invention.
Example (b):
as shown in fig. 1 to 3, the freeze dryer with an external hanging device according to the present embodiment includes a freeze drying chamber 1, an equipment chamber 2, and an external hanging device 22, which are integrally disposed; a first refrigerating system 23 and a second refrigerating system 24 are arranged in the freeze-drying chamber 1 and the equipment chamber 2, and the refrigerating temperature of the second refrigerating system 24 is lower than that of the first refrigerating system 23; a cold trap 12 and a plurality of partition plates 25 are arranged in the freeze-drying bin 1, and each partition plate 25 consists of an upper heating layer 9, a middle copper coil pipe 10 and a lower bottom plate 11; the copper coil 10 functions as an evaporator in a first refrigeration system 23, and the cold trap 12 functions as an evaporator in a second refrigeration system 24; the external hanging device 22 is arranged outside the freeze-drying bin 1 and is communicated with the freeze-drying bin 1; the freeze-drying chamber 1 is provided with the vacuum valve 19 and the air valve 13, the vacuum valve 19 is communicated with the vacuum machine, a vacuum environment is provided for the freeze-drying chamber 1, and sublimation of ice crystals in the medicine into water vapor is accelerated.
During operation, start first refrigerating system 23 and second refrigerating system 24, because the temperature of cold-trap 12 is lower than the temperature of the copper coil pipe 10 of first refrigerating system 23 in second refrigerating system 24, consequently, the vapor in freeze-drying storehouse 1 condenses on cold-trap 12 surface gradually, thereby avoided forming the ice sheet on the copper coil pipe 10, the normal work of first refrigerating system 23 has been guaranteed, through setting up zone of heating 9 in baffle 25, make temperature adjustment more nimble in freeze-drying storehouse 1, the problem that the freeze dryer of single cold source is difficult to nimble temperature regulation because of only refrigerating system has been avoided.
Inside first compressor 3, first condenser 4 and the first capillary 7 of being provided with of equipment storehouse 2, first refrigerating system 23 is including the first compressor 3, first condenser 4, first capillary 7 and the copper coil pipe 10 that communicate in proper order.
The inside second compressor 5, second condenser 6 and second capillary 8 that still is provided with of equipment storehouse 2, second refrigerating system 24 is including the second compressor 5, second condenser 6, second capillary 8 and the cold trap 12 that communicate in proper order.
The externally-hung device 22 comprises a water bath tank 18, a heat conducting pipe 16 and an externally-hung bottle 15, the heat conducting pipe 16 is used for communicating the freeze-drying bin 1 with the externally-hung bottle 15, the water bath tank 18 is fixedly arranged on the outer side of the freeze-drying bin 1, the heat conducting pipe 16 penetrates through the water bath tank 18, a heating sheet 17 is arranged inside the water bath tank 18, and the heat conducting pipe 16 is heated in a water bath mode, so that the flow direction of water vapor in the externally-hung bottle 15 to the freeze-drying bin 1 is not influenced, the temperature in the externally-hung bottle 15 is guaranteed to be kept at a normal temperature condition, and the problem that the temperature in the externally-hung bottle 15 approaches the temperature in the freeze-drying bin 1 and the quality of medicines is influenced due to overlong time is avoided.
The outer hanging bottle 15 is internally provided with a first temperature sensor 14.
The number of the partition plates 25 is three, and the copper coil pipes 10 are connected end to end in sequence.
The cold trap 12 is disposed below the three baffles 25.
The inner wall of the freeze-drying chamber 1 is provided with a second temperature sensor 20.
The freeze-drying bin 1 is provided with a bin gate 21.
The utility model discloses a concrete implementation: when the freeze-drying work is carried out, the first refrigerating system 23 and the second refrigerating system 24 are started firstly, liquid water in the product is cooled and solidified into ice crystals, then the vacuum pump is started, the ice crystals are sublimated into water vapor under the vacuum condition, the vacuum pump is closed, and the water vapor is sublimated on the surface of the cold trap 12 due to the fact that the temperature of the cold trap 12 is lower than that of the copper coil pipe 10, and the freeze-drying work is completed.
When the product in the external hanging bottle 15 is dried, the first refrigerating system 23 and the second refrigerating system 24 are started firstly, then the water bath tank 18 is heated, the water vapor in the external hanging bottle 15 flows to the freeze-drying bin 1, and then the water vapor is desublimated on the cold trap 12, so that the drying work is completed.
The above embodiments are only specific cases of the present invention, and the protection scope of the present invention includes but is not limited to the forms and styles of the above embodiments, and any suitable changes or modifications made thereto by those skilled in the art according to the claims of the present invention shall fall within the protection scope of the present invention.
Claims (9)
1. A freeze dryer with an external hanging device comprises a freeze drying bin, an equipment bin and the external hanging device which are arranged in an integrated mode; the method is characterized in that: a first refrigerating system and a second refrigerating system are arranged in the freeze-drying bin and the equipment bin, and the refrigerating temperature of the second refrigerating system is lower than that of the first refrigerating system; the freeze-drying bin is internally provided with a cold trap and a plurality of clapboards, and each clapboard consists of an upper heating layer, a middle copper coil and a lower bottom plate; the external hanging device is arranged outside the freeze-drying bin and is communicated with the freeze-drying bin; the freeze-drying bin is provided with a vacuum valve and an air valve.
2. The freeze dryer with a plug-in device according to claim 1, characterized in that: the inside first compressor, first condenser and the first capillary that is provided with of equipment storehouse, first refrigerating system is including the first compressor, first condenser, first capillary and the copper coil pipe that communicate in proper order.
3. The freeze dryer with a plug-in device according to claim 2, characterized in that: the inside second compressor, second condenser and the second capillary that still is provided with of equipment storehouse, second refrigerating system is including the second compressor, second condenser, second capillary and the cold trap that communicate in proper order.
4. A freeze dryer with a plug-in device according to any one of claims 1 to 3, characterized in that: the external device comprises a water bath box, a heat conduction pipe and an external bottle, the heat conduction pipe is used for communicating the freeze-drying bin and the external bottle, the water bath box is fixedly arranged outside the freeze-drying bin, the heat conduction pipe penetrates through the water bath box, and a heating sheet is arranged inside the water bath box.
5. The freeze dryer with a plug-in device according to claim 4, characterized in that: a first temperature sensor is arranged inside the external hanging bottle.
6. The lyophilizer with a plug-in device according to claim 1 or 2 or 3 or 5, characterized in that: the number of the partition plates is three, and the copper coil pipes are sequentially connected end to end.
7. The freeze dryer with a plug-in device according to claim 6, characterized in that: the cold trap is arranged below the three partition plates.
8. A freeze dryer with plug-in device according to claim 1 or 2 or 3 or 5 or 7, characterized in that: and a second temperature sensor is arranged on the inner wall of the freeze-drying bin.
9. The freeze dryer with a plug-in device according to claim 8, characterized in that: the freeze-drying bin is provided with a bin door.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120244370.5U CN214892196U (en) | 2021-01-28 | 2021-01-28 | Freeze dryer with external hanging device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120244370.5U CN214892196U (en) | 2021-01-28 | 2021-01-28 | Freeze dryer with external hanging device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214892196U true CN214892196U (en) | 2021-11-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120244370.5U Active CN214892196U (en) | 2021-01-28 | 2021-01-28 | Freeze dryer with external hanging device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214892196U (en) |
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2021
- 2021-01-28 CN CN202120244370.5U patent/CN214892196U/en active Active
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