CN2863216Y - Cold trap of vacuum freezing dryer - Google Patents
Cold trap of vacuum freezing dryer Download PDFInfo
- Publication number
- CN2863216Y CN2863216Y CN 200520142713 CN200520142713U CN2863216Y CN 2863216 Y CN2863216 Y CN 2863216Y CN 200520142713 CN200520142713 CN 200520142713 CN 200520142713 U CN200520142713 U CN 200520142713U CN 2863216 Y CN2863216 Y CN 2863216Y
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- China
- Prior art keywords
- cold
- trap
- trap body
- trap element
- vacuum
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- Expired - Fee Related
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Abstract
A cold trap of a vacuum freezing drier comprises a cold trap element in cup shape. The utility model is characterized in that an outer side wall of the cold trap element is provided with an evaporator freezing coil tube, the middle of the cold trap element is provided with a diversion cylinder in which the upper end is suspended on the middle hole of the cold-trap cover, while the lower end is distance with the inner bottom of the cold-trap element, the diversion cylinder can make the airflow of a drying room first enter into the bottom of the cold-trap element, then flow upwards along the outer side wall of the diversion cylinder, then pass the inner surface of coil tube to enter into the vacuum tube, thereby improving the surface utilization of a coil tube, the diversion cylinder can be taken out from the upper part of a cold-trap element, therefore the inner wall of the cold-trap element can be cleaned easily, and the sample can be arranged in the cold-trap element to be pre-frozen. The utility model has the advantages of simple structure, easy installment and improved efficiency of cold trap.
Description
Technical field
Utility model relates to the vacuum freeze technical field, belongs to a kind of cold-trap of vacuum freeze drier.
Background technology
At present, the cold-trap of vacuum freeze drier is a critical component in the vacuum freeze technology, its effect be specimen material use vacuum freeze drier in the liter process with its seizure and condense and rise oxidizing gases gas clean-up simultaneously.And the quality of its performance will directly influence the technical performance of vacuum freeze drier and the service life of vavuum pump.Its structure of the cold-trap of existing vacuum freeze drier (seeing shown in Figure 1), be that the middle part is provided with evaporimeter refrigeration coil 105 in cold-trap body 104, there is heat-insulation layer 108 cold-trap body 104 outsides, sealing ring 102 and cold-trap lid 103 are arranged at cold-trap body top, because vacuum-pumping tube 106 is arranged on the upper side wall place of cold-trap body, make from the air-flow 107 of hothouse 101 outputs and only promptly enter in the vacuum-pumping tube 106 by the top of evaporimeter refrigeration coil 105, air-flow 107 short circuits when causing the specimen material distillation, the surperficial utilization rate of evaporimeter refrigeration coil 105 is low, catches the defective of moisture ability.
Summary of the invention
The purpose of this utility model provides a kind of simple in structure, easy to install, cold-trap that can improve the vacuum freeze drier of evaporimeter refrigeration coil surface utilization rate.
For achieving the above object, the utility model is taked following design:
A kind of cold-trap of vacuum freeze drier, it includes the cold-trap body of a cup-shaped, be provided with the cold-trap lid on the top of cold-trap body, this cold-trap is stamped a mesopore that is communicated with hothouse, outer wall at the cold-trap body is provided with heat-insulation layer, upper side wall at the cold-trap body is connected with vacuum-pumping tube, it is characterized in that: the lateral wall of described cold-trap body is provided with the evaporimeter refrigeration coil, and the middle part is provided with guide shell in the cold-trap body.
Be provided with separation layer between the lateral wall of described cold-trap body and the heat-insulation layer, described evaporimeter refrigeration coil is arranged in the separation layer.
The upper end of described guide shell is hanging connected on the mesopore of cold-trap lid, and the inner bottom part of the lower end of described guide shell and cold-trap body leaves spacing.
Lateral wall top at described cold-trap body is provided with heater tube.
Because the middle part is provided with guide shell in the cold-trap body, make the bottom that is introduced into the cold-trap body from the air-flow of hothouse output, and then upwards from the lateral wall of guide shell, by with cold-trap madial wall all surfaces that the evaporimeter refrigeration coil closely contacts after, enter vacuum-pumping tube again, thereby improved evaporimeter refrigeration coil surface utilization rate greatly;
Because the evaporimeter refrigeration coil is arranged on the lateral wall of cold-trap body, and guide shell can take out from the top of cold-trap body, is convenient to clean the inwall of cold-trap body, also can place specimen material and carry out the pre-freeze processing in the cold-trap body.
The utility model has the advantages that: operating efficiency simple in structure, easy to install, as to have improved cold-trap.
Description of drawings
Fig. 1 is the structural representation of prior art
Fig. 2 is a structural representation of the present utility model
The specific embodiment
Referring to shown in Figure 2: a kind of cold-trap of vacuum freeze drier, it includes the cold-trap body 6 of a cup-shaped, be provided with cold-trap lid 1 on the top of cold-trap body 6, this cold-trap lid 1 has a mesopore 17 that is communicated with hothouse 3, outer wall at cold-trap body 6 is provided with heat-insulation layer 11, upper side wall at the cold-trap body is connected with vacuum-pumping tube 9, and the lateral wall of described cold-trap body 6 is provided with evaporimeter refrigeration coil 8, and the middle part is provided with guide shell 5 in cold-trap body 6.
Be provided with separation layer 10 between the lateral wall of described cold-trap body 6 and the heat-insulation layer 11, described evaporimeter refrigeration coil 8 is arranged in the separation layer 10.
In order to load and unload guide shell 5 convenience, the upper end of described guide shell 5 is hanging connected on the mesopore 15 of cold-trap lid 1, promptly the inner circle of this mesopore 15 is provided with the convex edge, the convex edge that cooperates guide shell 5 upper end cylindricals, guide shell 5 is hung in the cold-trap body 6, and the inner bottom part of the lower end of described guide shell 5 and cold-trap body leaves the spacing 15 by air-flow 16.
In order to prevent that U RunddichtringO 4 from hardening at low temperatures, guarantee system sealing, be provided with heater tube 7 on the lateral wall top of described cold-trap body 6.
Between hothouse 3 and cold-trap lid 1, O-ring seals 2 is installed, between cold-trap lid 1 and cold-trap body 6, be provided with U-shaped sealing ring 4, in the middle of the bottom of cold-trap body 6 adjutage 12 is arranged, in the both sides of adjutage 12 cold-trap frame 13 is arranged, these cold-trap frame 13 lower ends are connected on the shell 14.
During use, be introduced into the bottom of cold-trap body 6 from the air-flow of hothouse 3 output, then air-flow 16 more upwards from the lateral wall of guide shell 5, behind the inboard all outer surfaces by evaporimeter refrigeration coil 8, enter vacuum-pumping tube 9 again, thereby improved the surperficial utilization rate of evaporimeter refrigeration coil 8 greatly.
The utility model is applicable on the vacuum freeze drier of various vapor compression type refrigerating systems (single stage type, stage type, superposition type) composition.
Claims (4)
1, a kind of cold-trap of vacuum freeze drier, it includes the cold-trap body of a cup-shaped, top at the cold-trap body is provided with area grating, this cold-trap is stamped a mesopore that is communicated with hothouse, outer wall at the cold-trap body is provided with heat-insulation layer, upper side wall at cold-trap is connected with vacuum-pumping tube, it is characterized in that: the lateral wall of described cold-trap body is provided with the evaporimeter refrigeration coil, and the middle part is provided with guide shell in the cold-trap body.
2, the cold-trap of vacuum freeze drier according to claim 1 is characterized in that: be provided with separation layer between the lateral wall of described cold-trap body and the heat-insulation layer, described evaporimeter refrigeration coil is arranged in the separation layer.
3, the cold-trap of vacuum freeze drier according to claim 1 is characterized in that: the upper end of described guide shell is hanging connected on the mesopore of cold-trap lid, and the inner bottom part of the lower end of described guide shell and cold-trap body leaves spacing.
4, the cold-trap of vacuum freeze drier according to claim 1 is characterized in that: the lateral wall top at described cold-trap body is provided with heater tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520142713 CN2863216Y (en) | 2005-12-02 | 2005-12-02 | Cold trap of vacuum freezing dryer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520142713 CN2863216Y (en) | 2005-12-02 | 2005-12-02 | Cold trap of vacuum freezing dryer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2863216Y true CN2863216Y (en) | 2007-01-31 |
Family
ID=37675668
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520142713 Expired - Fee Related CN2863216Y (en) | 2005-12-02 | 2005-12-02 | Cold trap of vacuum freezing dryer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2863216Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106345137A (en) * | 2015-07-13 | 2017-01-25 | 爱发科低温泵株式会社 | Low temperature cold trap |
| CN108168206A (en) * | 2017-11-15 | 2018-06-15 | 中核新能核工业工程有限责任公司 | A kind of 8L container cryogenic systems of force-loose transmission of heat by contact |
| CN114353440A (en) * | 2021-12-23 | 2022-04-15 | 青岛海尔生物医疗股份有限公司 | Control method and device for freeze dryer and freeze dryer |
-
2005
- 2005-12-02 CN CN 200520142713 patent/CN2863216Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106345137A (en) * | 2015-07-13 | 2017-01-25 | 爱发科低温泵株式会社 | Low temperature cold trap |
| CN108168206A (en) * | 2017-11-15 | 2018-06-15 | 中核新能核工业工程有限责任公司 | A kind of 8L container cryogenic systems of force-loose transmission of heat by contact |
| CN114353440A (en) * | 2021-12-23 | 2022-04-15 | 青岛海尔生物医疗股份有限公司 | Control method and device for freeze dryer and freeze dryer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20070131 Termination date: 20141202 |
|
| EXPY | Termination of patent right or utility model |