CN2060530U - Testing vaccum cooling dehydrator - Google Patents
Testing vaccum cooling dehydrator Download PDFInfo
- Publication number
- CN2060530U CN2060530U CN 90202745 CN90202745U CN2060530U CN 2060530 U CN2060530 U CN 2060530U CN 90202745 CN90202745 CN 90202745 CN 90202745 U CN90202745 U CN 90202745U CN 2060530 U CN2060530 U CN 2060530U
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- vacuum
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- trap
- cooling
- cuts down
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Abstract
The utility model relates to a testing vacuum cooling dehydrator, which belongs to a vacuum cooling device. The utility model mainly overcomes the problems of relatively great duct loss, poor vacuum pumping rate, long air pumping time, slow dehydrating time, etc. In the existing cooling dehydrator. The cooling dehydrator provided by the utility model is an integral structure, which combines a cooling system and a vacuum system into integration and adopts the technology of the direct evaporation coil pipe. The testing vacuum cooling dehydrator has the advantages of good heat exchange effect, high cooling efficiency and high temperature reducing speed. The vacuum system adopts a vacuum electromagnetic valve to automatically control the closing of the vacuum system to avoid the contamination to the vacuum system by the countercurrent flow of the oil. Simultaneously, a vacuum probe is provided with a vacuum air separating circular plate to effectively prevent the direct shock to the tungsten wire by the air.
Description
The utility model belongs to the vacuum refrigeration device, a kind of all-in-one-piece experiment vacuum freeze drier of more specifically saying so.
In the prior art, vacuum freeze drier is used in the experiment of Britain EF4 type, and its special cooling system and vacuum system are split-type structural, because structural reason, it exists trunking loss bigger, causes the vacuum pumping rate relatively poor, and the time of bleeding is longer, and drying time is slower; The refrigeration system of the similar freeze dryer of and for example Japanese EF4 type adopts the indirect heat transfer mode, and heat transfer efficiency is lower, and loss of refrigeration capacity is bigger.
The purpose of this utility model is that vacuum freezing is integrated, adopts direct-expansion coil technology, to overcome the drawback in the existing vacuum freezing device structure, improves the heat transfer property of equipment, reduces the energy loss in the vacuum process.
The vacuum freeze drier of monoblock type experiment usefulness provided by the utility model is realized by following structural design.It integrally combines refrigeration system and vacuum system, its refrigeration system by refrigeration compressor (9), device for drying and filtering (13), thermal expansion cut down (16), cold-trap parts such as (15) is formed, vacuum system is cut down by vavuum pump (5), vacuum electromagnetic that (3), oil strainer (2), vacuum diaphragm cut down (11), cold-trap (15), vacuum probe parts such as (6) is formed.In refrigeration system, the blast pipe of its refrigeration compressor (9) is fixedlyed connected with the entrance point of device for drying and filtering (13), the entrance point that the port of export and the thermal expansion of device for drying and filtering (13) cuts down (16) flexibly connects, thermal expansion cuts down the port of export of (16) and the feed pipe (23) of the evaporation coil (20) in the cold-trap (15) flexibly connects, and the muffler (25) of the evaporation coil (20) in the cold-trap (15) is fixedlyed connected with the air intake duct of refrigeration compressor (9); In vacuum system, adopt vacuum electromagnetic to cut down (3), with automatic control vacuum system sealing, to avoid pump oil adverse current contaminated vacuum system.The primary structure of its vacuum system is, the air inlet and the vacuum electromagnetic of vavuum pump (5) cuts down the outlet of (3) and adopts screwed connection, the import that vacuum electromagnetic cuts down (3) is fixedlyed connected with the measuring point of vacuum probe (6), one end of the outlet of vacuum probe (6) and vacuum rubber pipe (4) flexibly connects, exhaust tube (22) on the other end of its sky rubber tube (4) and cold-trap (15) shell body flexibly connects, the excretory duct (21) of cold-trap (15) bottom flexibly connects with the import that vacuum diaphragm cuts down (11), and the import of the exhaust outlet of vavuum pump (5) and oil strainer (2) flexibly connects.
Moreover the cold-trap structure in this machine, in inwall, be provided with evaporation coil (20) from top to bottom, its feed pipe (23) is above the cold-trap body, muffler (25) is below the cold-trap body, and exhaust tube (22) is at cold-trap body opposite side, and communicates with the cold-trap inwall, excretory duct (21) is in the cold-trap bottom, between cold-trap inwall and shell body, the heat insulation layer (18) that adopts polyurethane second time of foaming technology and pour into a mould is arranged, the fixing welding of cold-trap inwall upper end disc and cold-trap panel.
In vacuum system, its vacuum probe (6) is provided with vacuum trapping plectane (26) in the measuring point, offers an inclined hole on vacuum gas barrier (26) face, has prevented that effectively air from directly impacting tungsten filament simultaneously.
The experiment vacuum freeze drier of said structure, its operation principle is, refrigeration unit is compressed work done to cold-producing medium, and be delivered to dry filter through cooled cold-producing medium and carry out filtration drying, carrying out thermal expansion again cuts down and carries out throttling process, make its cold-producing medium in cold-trap, absorb heat, freeze, the heat that absorbent article discharges, return refrigeration unit then, finish the course of work of a kind of refrigeration cycle, go on again and again, for freezing dry process provides required cold.Cut down when starting vavuum pump and vacuum electromagnetic, the steam that discharges in the suction cold-trap, progressively under condition of negative pressure, it is dry that biological products are arrived.
Experiment provided by the utility model with vacuum freeze drier compared with prior art owing to adopt direct-expansion coil technology, good effect of heat exchange, the refrigeration height, cooling rate is fast.And this machine overall structure is strong, has reduced trunking loss, and the high cold-trap simultaneously of utilization rate of equipment and installations adopts the polyurethane insulator, and heat-proof quality is good, and energy loss is few.
Further use description of drawings structure of the present utility model below.Accompanying drawing 1 is a vacuum freeze drier general structure schematic diagram, and accompanying drawing 2 is partial sectional views of cold-trap in the accompanying drawing 1, and accompanying drawing 3 is schematic diagrames of the vacuum trapping plectane in the vacuum probe in the accompanying drawing 1.(1) rear board among the figure, (2) oil strainer, (3) vacuum electromagnetic cuts down, (4) vacuum rubber pipe, (5) vavuum pump, (6) vacuum probe, (7) Left-Hand Panel, (8) frame, (9) refrigeration unit, (10) control box, (11) vacuum diaphragm cuts down, (12) front panel, (13) device for drying and filtering, (14) right panel; (15) cold-trap, (16) thermal expansion cuts down, (17) upper cover plate, (18) heat guard, (19) cold-trap inwall, (20) evaporation coil, (21) excretory duct, (22) exhaust tube, (23) feed pipe, (24) cold-trap panel, (25) muffler, (26) vacuum trapping plectane.
When implementing, the cold-trap inwall adopts the AIS304 stainless steel, and disc is fixed welding on cold-trap panel and the cold-trap inwall.Whole technology is simple, and is easy to make.
Claims (3)
1, a kind of vacuum freeze drier of monoblock type experiment usefulness, comprise refrigeration system and vacuum system, its refrigeration system is by refrigeration compressor, device for drying and filtering, thermal expansion cuts down, cold-traps etc. are partly formed, vacuum system is by vavuum pump, vacuum electromagnetic cuts down, oil strainer, vacuum diaphragm cuts down, cold-trap, vacuum probes etc. are partly formed, the entrance point that it is characterized in that the blast pipe of refrigeration compressor and device for drying and filtering is platoon fixedly, the entrance point that the port of export of device for drying and filtering and thermal expansion cut down flexibly connects, the port of export that thermal expansion cuts down and cold-trap feed pipe flexibly connect, and the muffler of cold-trap is fixedlyed connected with the air intake duct of refrigeration compressor; In vacuum system, screwed connection is adopted in the outlet that the air inlet of vavuum pump and vacuum electromagnetic cut down, the import that vacuum electromagnetic cuts down is fixedlyed connected with the measuring point of vacuum probe, one end of the outlet of vacuum probe and vacuum rubber pipe flexibly connects, the other end of vacuum rubber pipe and the exhaust tube of cold-trap flexibly connect, the import that the excretory duct of cold-trap and vacuum diaphragm cut down flexibly connects, and the exhaust outlet of vavuum pump and the import of oil strainer flexibly connect.
2, vacuum freeze drier according to claim 1, it is characterized in that being provided with evaporation coil from top to bottom in the inwall of cold-trap, the exhausted bed course that adopts polyurethane second time of foaming technology between inwall and the shell body and pour into a mould, the fixing welding of inwall upper end disc and trap panel.
3, vacuum freeze drier according to claim 1 is provided with the vacuum gas barrier in it is characterized in that in the vacuum probe, is provided with an inclined hole on its gas barrier face.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 90202745 CN2060530U (en) | 1990-03-10 | 1990-03-10 | Testing vaccum cooling dehydrator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 90202745 CN2060530U (en) | 1990-03-10 | 1990-03-10 | Testing vaccum cooling dehydrator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2060530U true CN2060530U (en) | 1990-08-15 |
Family
ID=4884087
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 90202745 Withdrawn CN2060530U (en) | 1990-03-10 | 1990-03-10 | Testing vaccum cooling dehydrator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2060530U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100376855C (en) * | 2005-05-10 | 2008-03-26 | 顺德职业技术学院 | Water vapour coagulator |
| CN100386582C (en) * | 2004-12-24 | 2008-05-07 | 中国石油天然气集团公司 | Pipeline vacuum drying method and device |
| CN115143737A (en) * | 2022-07-24 | 2022-10-04 | 北京四环起航科技有限公司 | A novel automatic freeze dryer that is used for a small amount of sample freeze drying in laboratory |
-
1990
- 1990-03-10 CN CN 90202745 patent/CN2060530U/en not_active Withdrawn
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100386582C (en) * | 2004-12-24 | 2008-05-07 | 中国石油天然气集团公司 | Pipeline vacuum drying method and device |
| CN100376855C (en) * | 2005-05-10 | 2008-03-26 | 顺德职业技术学院 | Water vapour coagulator |
| CN115143737A (en) * | 2022-07-24 | 2022-10-04 | 北京四环起航科技有限公司 | A novel automatic freeze dryer that is used for a small amount of sample freeze drying in laboratory |
| CN115143737B (en) * | 2022-07-24 | 2024-03-22 | 北京四环起航科技有限公司 | Novel automatic freeze dryer for freeze drying of small amount of samples in laboratory |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |