CN105402971B - A kind of directional freezing device using liquid nitrogen - Google Patents
A kind of directional freezing device using liquid nitrogen Download PDFInfo
- Publication number
- CN105402971B CN105402971B CN201610008243.9A CN201610008243A CN105402971B CN 105402971 B CN105402971 B CN 105402971B CN 201610008243 A CN201610008243 A CN 201610008243A CN 105402971 B CN105402971 B CN 105402971B
- Authority
- CN
- China
- Prior art keywords
- liquid nitrogen
- solenoid valve
- tube
- steel pipe
- air compressor
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D3/00—Devices using other cold materials; Devices using cold-storage bodies
- F25D3/10—Devices using other cold materials; Devices using cold-storage bodies using liquefied gases, e.g. liquid air
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D23/00—General constructional features
- F25D23/06—Walls
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D2201/00—Insulation
- F25D2201/10—Insulation with respect to heat
Abstract
The present invention relates to a kind of directional freezing devices using liquid nitrogen, including U-tube (2), air compressor machine (3), essence control timing routine controller (4) and liquid nitrogen bottle (5), liquid nitrogen bottle (5) input end connects U-tube (2) by seamless steel pipe (7), U-tube (2) other end connects liquid nitrogen bottle (5) port of export, solenoid valve one (9) is installed at liquid nitrogen bottle (5) port of export, air compressor machine (3) is connected with by pipeline on seamless steel pipe (7) between solenoid valve one (9) and U-tube (2), solenoid valve two (10) is installed on pipeline between air compressor machine (3) and seamless steel pipe (7), air compressor machine (3), solenoid valve one (9), solenoid valve two (10) passes through connection essence control timing routine controller (4) respectively, metal bar (8) is equipped in U-tube (2)；The present invention solves the problems, such as to influence result of the test, and high degree of automation due to liquid nitrogen height problem, and operation is very convenient, and reliability is high.
Description
[technical field]
The present invention relates to freezing equipment technical field, specifically a kind of directional freezing devices using liquid nitrogen.
[background technology]
At present, in laboratory, it is usually necessary to use liquid nitrogen to be cooled down, but is directly exported liquid nitrogen out of liquid nitrogen bottle, liquid
Nitrogen is influenced because the variation of bottle inner height can have result of the test.Therefore, if a kind of directional freezing device using liquid nitrogen can be provided,
It is made not influence result of the test due to liquid nitrogen height, will be had very important significance.
[invention content]
A kind of directional freezing device using liquid nitrogen is provided present invention aim to solve above-mentioned deficiency, not only
It solves the problems, such as to influence result of the test, and high degree of automation due to liquid nitrogen height problem, operates very convenient, reliability
It is high.
A kind of directional freezing device using liquid nitrogen is designed to achieve the above object, including U-tube 2, air compressor machine 3, essence control
Timing routine controller 4 and liquid nitrogen bottle 5, are loaded with liquid nitrogen 6 in the liquid nitrogen bottle 5, and the input end of the liquid nitrogen bottle 5 passes through seamless
Steel pipe 7 connects U-tube 2, and 2 other end of U-tube connects the port of export of liquid nitrogen bottle 5, the liquid nitrogen bottle 5 by seamless steel pipe 7
The port of export at be installed with solenoid valve 1, connected on the seamless steel pipe 7 between the solenoid valve 1 and U-tube 2 by pipeline
There is air compressor machine 3, solenoid valve 2 10, the air compressor machine 3, electromagnetism are installed on the pipeline between the air compressor machine 3 and seamless steel pipe 7
Valve 1, solenoid valve 2 10 are equipped with metal bar respectively by connection essence control timing routine controller 4 in the U-tube 2
8,2 two-port of U-tube is arranged with low temperature resistant silicon rubber 1.
Polyurethane foam is enclosed on the outer wall of the seamless steel pipe 7.
The seamless steel pipe 7 is made of 304 materials.
The solenoid valve 1, solenoid valve 2 10 are liquid nitrogen special electromagnetic valve.
The present invention compared with the existing technology, structure novel, simple, reasonable design, by using air compressor machine, liquid nitrogen bottle, U-shaped
Pipe, solenoid valve one, solenoid valve two are fabricated to liquid nitrogen cyclic orientation refrigerating plant, so as to solve because being influenced during liquid nitrogen height problem
The problem of result of the test, and high degree of automation, operation is very convenient, and reliability is high；In addition, orientation freezing of the present invention
Device is wrapped up in the outer wall of external circulating device using polyurethane foam, so as to reduce the heat waste in cyclic process to the greatest extent
It loses so that the metal bar in U-tube can be such that heat transfer is carried out along vertical direction, reach best refrigerating effect.
[description of the drawings]
Fig. 1 is the structure diagram of the present invention；
In figure：1st, low temperature resistant silicon rubber 2, U-tube 3, air compressor machine 4, essence control timing routine controller 5, liquid nitrogen bottle 6,
Liquid nitrogen 7, seamless steel pipe 8, metal bar 9, solenoid valve 1, solenoid valve two.
[specific embodiment]
The present invention is made below in conjunction with the accompanying drawings further explained below：
As shown in Figure 1, the present invention includes：U-tube 2, air compressor machine 3, essence control timing routine controller 4 and liquid nitrogen bottle 5, liquid
Liquid nitrogen 6 is loaded in nitrogen bottle 5, the input end of liquid nitrogen bottle 5 connects U-tube 2 by seamless steel pipe 7, and 2 other end of U-tube passes through nothing
The port of export that steel pipe 7 connects liquid nitrogen bottle 5 is stitched, solenoid valve 1, solenoid valve 1 and U-tube 2 are installed at the port of export of liquid nitrogen bottle 5
Between seamless steel pipe 7 on air compressor machine 3 is connected with by pipeline, be installed with electricity on the pipeline between air compressor machine 3 and seamless steel pipe 7
Magnet valve 2 10, seamless steel pipe 7 are made of 304 materials, are enclosed with polyurethane foam on the outer wall of seamless steel pipe 7, air compressor machine 3,
Solenoid valve 1, solenoid valve 2 10 pass through connection essence control timing routine controller 4, solenoid valve 1, solenoid valve 2 10 respectively
It is liquid nitrogen special electromagnetic valve, metal bar 8 is equipped in U-tube 2,2 two-port of U-tube is arranged with low temperature resistant silicon rubber 1.
The seamless steel pipe of 304 materials is connect by the present invention with liquid nitrogen bottle and air compressor machine and solenoid valve one, solenoid valve two.Its
Operation principle is：When needing freezing, essence control timing routine controller opens solenoid valve one, closes solenoid valve two, and liquid nitrogen is from electricity
The metal bar in U-tube is passed through to flow out counterclockwise at magnet valve one；At the end of freezing, essence control timing routine controller opens electromagnetism
Valve two closes solenoid valve one, and air compressor machine is started to work, and liquid nitrogen passes through the metal bar counter clockwise flow in U-tube at solenoid valve two
Return liquid nitrogen bottle.
The present invention provides a kind of laboratory directional freezing device using liquid nitrogen, which mainly includes liquid nitrogen bottle, liquid
Nitrogen cycle device and liquid nitrogen cycler three parts.It is wrapped up by the outer wall in external circulating device using polyurethane foam,
So as to reduce the heat loss in cyclic process to the greatest extent so that the metal bar in U-tube can make heat transfer along vertical
Direction carries out, and reaches best refrigerating effect.
The present invention is simultaneously not limited to the embodiments described above, other any Spirit Essences and principle without departing from the present invention
Lower made change, modification, replacement, combination, simplification, should be equivalent substitute mode, be included in the protection model of the present invention
Within enclosing.
Claims (4)
1. a kind of directional freezing device using liquid nitrogen, it is characterised in that：Including U-tube (2), air compressor machine (3), essence control timing journey
Sequence controller (4) and liquid nitrogen bottle (5), the liquid nitrogen bottle (5) is interior to be loaded with liquid nitrogen (6), and the input end of the liquid nitrogen bottle (5) passes through
Seamless steel pipe (7) connection U-tube (2), U-tube (2) other end connect the outlet of liquid nitrogen bottle (5) by seamless steel pipe (7)
It holds, solenoid valve one (9), the nothing between the solenoid valve one (9) and U-tube (2) is installed at the port of export of the liquid nitrogen bottle (5)
Air compressor machine (3) is connected with by pipeline on seam steel pipe (7), is installed on the pipeline between the air compressor machine (3) and seamless steel pipe (7)
There is solenoid valve two (10), the air compressor machine (3), solenoid valve one (9), solenoid valve two (10) pass through connection essence control timing respectively
Cyclelog (4) is equipped with metal bar (8) in the U-tube (2), and U-tube (2) two-port is arranged with low temperature resistant silicon
Rubber (1).
2. the directional freezing device of liquid nitrogen is utilized as described in claim 1, it is characterised in that：Outside the seamless steel pipe (7)
Polyurethane foam is enclosed on wall.
3. the directional freezing device of liquid nitrogen is utilized as claimed in claim 1 or 2, it is characterised in that：The seamless steel pipe (7) is adopted
It is made of 304 materials.
4. the directional freezing device of liquid nitrogen is utilized as claimed in claim 3, it is characterised in that：The solenoid valve one (9), electromagnetism
Valve two (10) is liquid nitrogen special electromagnetic valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610008243.9A CN105402971B (en) | 2016-01-07 | 2016-01-07 | A kind of directional freezing device using liquid nitrogen |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610008243.9A CN105402971B (en) | 2016-01-07 | 2016-01-07 | A kind of directional freezing device using liquid nitrogen |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105402971A CN105402971A (en) | 2016-03-16 |
| CN105402971B true CN105402971B (en) | 2018-06-08 |
Family
ID=55468616
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610008243.9A Expired - Fee Related CN105402971B (en) | 2016-01-07 | 2016-01-07 | A kind of directional freezing device using liquid nitrogen |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105402971B (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105823301B (en) * | 2016-04-01 | 2018-04-06 | 上海应用技术大学 | A kind of time control cooling device and time control cooling means |
| CN106871546A (en) * | 2017-02-08 | 2017-06-20 | 中国科学院合肥物质科学研究院 | A kind of loss biological specimen of liquid nitrogen zero freezes the freezing chamber of tank |
| CN108917254B (en) * | 2018-06-06 | 2020-07-24 | 哈尔滨工业大学 | Directional freezing device for gel and ceramic slurry |
| CN110215275A (en) * | 2019-07-16 | 2019-09-10 | 孙悦 | A kind of freezer unit for treating preauricular flstula |
| CN110215274A (en) * | 2019-07-16 | 2019-09-10 | 孙悦 | It is a kind of for treating the freezer unit of preauricular flstula |
| CN110215276A (en) * | 2019-07-16 | 2019-09-10 | 孙悦 | A kind of refrigerating plant for treating preauricular flstula |
| CN112923624A (en) * | 2021-02-22 | 2021-06-08 | 中国科学院金属研究所 | Storage device |
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| CN2876760Y (en) * | 2005-12-30 | 2007-03-07 | 攀枝花新钢钒股份有限公司 | Vacuum pipeline liquid sampler |
| KR100783778B1 (en) * | 2006-05-24 | 2007-12-10 | 유성기업 주식회사 | An air compressor |
| CN202133209U (en) * | 2011-06-06 | 2012-02-01 | 深港产学研基地 | Directional freezing device |
| CN102721722A (en) * | 2012-06-20 | 2012-10-10 | 扬州大学 | In-situ thermal response testing method of stratified thermal properties of underground rock and soil |
| CN202580621U (en) * | 2012-02-17 | 2012-12-05 | 东莞市理士奥电源技术有限公司 | Gas supply system |
| CN203959895U (en) * | 2014-07-08 | 2014-11-26 | 大连科泰水处理有限公司 | A kind of liquid germicide automated injection device |
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| KR970062338U (en) * | 1996-05-16 | 1997-12-10 | Pulverized coal injection lance of blast furnace | |
| CN2437638Y (en) * | 2000-07-13 | 2001-07-04 | 倪瑞龙 | Pressure water discharging device |
| JP4728601B2 (en) * | 2004-06-28 | 2011-07-20 | 古河電気工業株式会社 | Cooling system for superconducting power equipment |
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2016
- 2016-01-07 CN CN201610008243.9A patent/CN105402971B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2876760Y (en) * | 2005-12-30 | 2007-03-07 | 攀枝花新钢钒股份有限公司 | Vacuum pipeline liquid sampler |
| KR100783778B1 (en) * | 2006-05-24 | 2007-12-10 | 유성기업 주식회사 | An air compressor |
| CN202133209U (en) * | 2011-06-06 | 2012-02-01 | 深港产学研基地 | Directional freezing device |
| CN202580621U (en) * | 2012-02-17 | 2012-12-05 | 东莞市理士奥电源技术有限公司 | Gas supply system |
| CN102721722A (en) * | 2012-06-20 | 2012-10-10 | 扬州大学 | In-situ thermal response testing method of stratified thermal properties of underground rock and soil |
| CN203959895U (en) * | 2014-07-08 | 2014-11-26 | 大连科泰水处理有限公司 | A kind of liquid germicide automated injection device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105402971A (en) | 2016-03-16 |
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