CN203204467U - Programmed temperature lowering instrument - Google Patents
Programmed temperature lowering instrument Download PDFInfo
- Publication number
- CN203204467U CN203204467U CN 201320042094 CN201320042094U CN203204467U CN 203204467 U CN203204467 U CN 203204467U CN 201320042094 CN201320042094 CN 201320042094 CN 201320042094 U CN201320042094 U CN 201320042094U CN 203204467 U CN203204467 U CN 203204467U
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- liquid nitrogen
- nitrogen container
- container
- temperature lowering
- instrument
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Abstract
The utility model relates to a programmed temperature lowering instrument which can effectively solve problems that liquid nitrogen consumption is large, a size and a shape of a sample are limited and the temperature lowering is not even in a conventional programmed temperature lowering instrument. A solution of the programmed temperature lowering instrument is that the instrument comprises a liquid nitrogen container. A heating wire is transversely positioned inside of the liquid nitrogen container. The heating wire is connected through a conducting wire to a data acquisition and control device which is positioned outside of the liquid nitrogen container. A liquid nitrogen transporting tube, with a part of which positioned outside of the liquid nitrogen container, is positioned inside of the liquid nitrogen container. An air inlet of the liquid nitrogen transporting tube is positioned above the heating wire and does not contact the heating wire. An air outlet of the liquid nitrogen transporting tube is sleeved with an insulating box. The position, which corresponds to the air outlet of the liquid nitrogen transporting tube, of inner side of the upper part of the insulating box is fixed with a cyclone. The air outlet of the liquid nitrogen transporting tube is positioned inside of the cyclone. The lower bottom surface inside of the insulating box is fixed with an object placing platform. The inner side of the insulating box is fixed with a temperature sensor. The temperature sensor is connected through the conducting wire and to the data acquisition and control device. The programmed temperature lowering instrument is novel and unique in structure, convenient to use and high in work efficiency.
Description
Technical field
The utility model relates to cooling instrument, particularly a kind of programmed cooling instrument.
Background technology
When the low temperature that carries out biomaterial was preserved, different cells required different cooling and rewarming program, has some cells also to require cooling process to be divided into multistage and carries out, and every section has different cooldown rates; According to cooling and the difference of control principle, cooling instrument commonly used at present roughly can be divided into two classes: 1, liquid nitrogen spray formula cooling instrument, 2, utilize the lift cooling instrument of gas phase zone thermograde in the liquid nitrogen container; When these two kinds of cooling instruments are widely used, also expose weakness separately, liquid nitrogen spray formula cooling instrument is expensive, again owing in this instrument liquid nitrogen transfer pipeline low-temperature solenoid valve is installed, this solenoid valve is to be operated under the low temperature situation, water in air steam can be on valve dewfall, frosting, can damage coil and the Circuits System of solenoid valve, situation such as also cause that easily valve closing is not forbidden, general biomaterial is down to subzero 60 degree or subzero 80 degree with the lift cooling instrument, can directly enter liquid nitrogen preserves, but for liquid nitrogen spray formula cooling instrument, when reaching this temperature, be placed in the liquid nitrogen container after biomaterial need being taken out by the cooling instrument cooling chamber, the easy like this temperature recovery that causes, carry out a few hours even a couple of days continuous utmost point control procedure test of lowering the temperature at a slow speed for needs, if adopt the injecting type cooling instrument, because of liquid nitrogen consumption bigger, in temperature-fall period, need to replenish liquid nitrogen to the Dewar liquid nitrogen container, can disturb cooling process, and employing lift cooling instrument, its test specimen carries out in the gas phase zone in liquid nitrogen container, the size of sample and shape just are subjected to the constraint of liquid nitrogen container spatial geometric shape like this, gas phase zone is to communicate with air in the liquid nitrogen container, its thermograde is vulnerable to the influence of surrounding environment, and the size of the thermograde direction of sample in liquid nitrogen container can not be too big.
Summary of the invention
At above-mentioned situation, for overcoming the defective of prior art, the purpose of the utility model just provides a kind of programmed cooling instrument, and it is big effectively to solve current procedure cooling instrument liquid nitrogen consumption, and the size of sample and shape suffer restraints and lower the temperature problem such as inhomogeneous.
Its solution is, comprise liquid nitrogen container, horizontal placement heater strip is arranged in the liquid nitrogen container, heater strip is connected with control device with data acquisition outside placing liquid nitrogen container through lead, there is part to place the defeated liquid nitrogen pipe of liquid nitrogen container outside in the liquid nitrogen container, the air intake opening of defeated liquid nitrogen pipe places heater strip top and does not contact with it, be set with insulated cabinet on the gas outlet of defeated liquid nitrogen pipe, fixedly there is cyclone the corresponding section, gas outlet of insulated cabinet upper inner face and defeated liquid nitrogen pipe, defeated liquid nitrogen pipe gas outlet places in the cyclone, on the bottom surface object placing platform is arranged fixedly in the insulated cabinet, the insulated cabinet medial surface fixedly has temperature sensor, and temperature sensor is connected with control device with data acquisition through lead.
The utility model novel structure uniqueness, easy to use, high efficiency.
Description of drawings
Fig. 1 is the utility model structure principle chart.
Embodiment
Below in conjunction with accompanying drawing embodiment of the present utility model is described in further detail.
Provided by Fig. 1, the utility model comprises liquid nitrogen container, horizontal placement heater strip 2 is arranged in the liquid nitrogen container 1, heater strip 2 is connected with control device 3 with data acquisition outside placing liquid nitrogen container 1 through lead, there is part to place the defeated liquid nitrogen pipe 4 of liquid nitrogen container 1 outside in the liquid nitrogen container 1, the air intake opening of defeated liquid nitrogen pipe 4 places heater strip 2 tops and does not contact with it, be set with insulated cabinet 5 on the gas outlet of defeated liquid nitrogen pipe 4, fixedly there is cyclone 6 corresponding section, gas outlet of insulated cabinet 5 upper inner faces and defeated liquid nitrogen pipe 4, defeated liquid nitrogen pipe 4 gas outlets place in the cyclone 6, on the ground object placing platform 7 is arranged fixedly down in the insulated cabinet 5, insulated cabinet 5 medial surfaces fixedly have temperature sensor 8, and temperature sensor 8 is connected with control device 3 with data acquisition through lead.
Said liquid nitrogen container 1 is tightly connected with being connected to of other device.
When the utility model uses, article 9 are put on the object placing platform 7 of insulated cabinet 5, relevant parameter in data acquisition and the control device 3 is set, move the utility model then, because 2 pairs of liquid nitrogen of heater strip 10 produce heat, cause heater strip 2 liquid nitrogen gasification on every side, thereby the pressure in the liquid nitrogen container 1 is increased, so just make liquid nitrogen enter insulated cabinet 5 through defeated liquid nitrogen pipe 4, under the effect of cyclone 6, the gentle nitrogen mixture of liquid nitrogen descends at insulated cabinet 5 inside spins, make lowering temperature uniform, the temperature that temperature sensor 8 detects in the insulated cabinet is imported temperature information into data acquisition and control device 3 then, and data acquisition and the temperature of 3 pairs of detections of control device and the temperature of setting compare, and then control heater strip 2 heating powers, make the temperature in the insulated cabinet 5 reach setting value.
The utility model novel structure uniqueness, easy to use, high efficiency.
Claims (2)
1. programmed cooling instrument, comprise liquid nitrogen container, it is characterized in that, horizontal placement heater strip (2) is arranged in the liquid nitrogen container (1), heater strip (2) is connected with control device (3) with data acquisition outside placing liquid nitrogen container (1) through lead, there is part to place the outside defeated liquid nitrogen pipe (4) of liquid nitrogen container (1) in the liquid nitrogen container (1), the air intake opening of defeated liquid nitrogen pipe (4) places heater strip (2) top and does not contact with it, be set with insulated cabinet (5) on the gas outlet of defeated liquid nitrogen pipe (4), fixedly there is cyclone (6) corresponding section, gas outlet of insulated cabinet (5) upper inner face and defeated liquid nitrogen pipe (4), defeated liquid nitrogen pipe (4) gas outlet places in the cyclone (6), on the interior bottom surface of insulated cabinet (5) object placing platform (7) is arranged fixedly, insulated cabinet (5) medial surface fixedly has temperature sensor (8), and temperature sensor (8) is connected with control device (3) with data acquisition through lead.
2. a kind of programmed cooling instrument according to claim 1 is characterized in that, said liquid nitrogen container (1) is tightly connected with being connected to of other device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320042094 CN203204467U (en) | 2013-01-27 | 2013-01-27 | Programmed temperature lowering instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320042094 CN203204467U (en) | 2013-01-27 | 2013-01-27 | Programmed temperature lowering instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203204467U true CN203204467U (en) | 2013-09-18 |
Family
ID=49148561
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320042094 Expired - Fee Related CN203204467U (en) | 2013-01-27 | 2013-01-27 | Programmed temperature lowering instrument |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203204467U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104390847A (en) * | 2014-11-26 | 2015-03-04 | 苏州市职业大学 | Freezing apparatus for separated Hopkinson pole experiment measurement |
| CN109164845A (en) * | 2018-09-11 | 2019-01-08 | 希瑞干细胞科技有限公司 | Band can write the programmed cooling instrument of cooling process |
-
2013
- 2013-01-27 CN CN 201320042094 patent/CN203204467U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104390847A (en) * | 2014-11-26 | 2015-03-04 | 苏州市职业大学 | Freezing apparatus for separated Hopkinson pole experiment measurement |
| CN109164845A (en) * | 2018-09-11 | 2019-01-08 | 希瑞干细胞科技有限公司 | Band can write the programmed cooling instrument of cooling process |
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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: 20130918 Termination date: 20160127 |
|
| EXPY | Termination of patent right or utility model |