CN2392069Y - Dewar type container for liquid helium supply - Google Patents
Dewar type container for liquid helium supply Download PDFInfo
- Publication number
- CN2392069Y CN2392069Y CN99229411U CN99229411U CN2392069Y CN 2392069 Y CN2392069 Y CN 2392069Y CN 99229411 U CN99229411 U CN 99229411U CN 99229411 U CN99229411 U CN 99229411U CN 2392069 Y CN2392069 Y CN 2392069Y
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- Prior art keywords
- valve
- inner bag
- shell
- liquid helium
- liquid nitrogen
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Abstract
The utility model relates to a Dewar type container for liquid helium supply. A thermal insulation mode of a multilayer heat insulation liquid nitrogen supplying cold shield is adopted between an inner liner 3 and an outer shell 10, the inner liner 3 is connected with the outer shell 10 by a plurality of roots of stainless steel wires 6 in the mode of tangential oblique pull, and the inner liner 3 or a bottle neck is also provided with a heater 11 inside. Not only the inner part of the container is fixed and firm and the heat-insulating property is good and is suitable for the storage and transportation of the high volume of liquid helium, but also the utility model can directly supply gas for users. So the utility model has the advantages of high efficiency of storage and transportation, good quality of gas supply and convenient and safe operation.
Description
The utility model is a liquid helium air feed Dewar type container, and it relates to a kind of accumulating and air feeder of liquid helium.
At present the domestic metal Dewar container that generally adopts stores and transports cryogenic liquides such as liquid helium, has introduced a kind of Dewar type container of such use in 27 pages of " superconductor technology application " books that publishing house of Chengdu Univ. of Science ﹠ Technology publishes nineteen ninety-five.It is made of annexes such as stainless steel inner container, shell and respective valves, between inner bag and shell, adopted the adiabatic method of multi-screen or multilayer, because the inner bag of this Dewar type container and heat screen only depend on inner neck pipe to hang and are fixed on the shell, so container can not tilt, particularly side knock can not be born and transportation is jolted, the storage and the transportation of especially incompatible big capacity liquid helium; And the liquid helium Dewar container can not satisfy the needs that the user carried out direct air feed.
The purpose of this utility model provide a kind of firm, can be applicable to that big capacity liquid helium stores, transportation and can directly export the air feed Dewar type container of helium.
The purpose of this utility model reaches with following measure: the gallbladder channel suspender is connected with shell in described, and this suspender can be many and tangentially tiltedly is pulled in Stainless Steel Wire on the shell along inner bag, and the joint of steel wire and inner bag or shell can be provided with micro-adjusting mechanism.Also be equipped with heater in inner bag or the bottleneck, described heater is the electric heating apparatus that is subjected to electric controller control that places in the vacuum tube, its outer pressure transmitter and vaccum stop valve constitute container with placing bottleneck heating system.
Control valve on this Dewar type container is sampling cock, one-way valve, steam supply valve, fluid infusion valve, transfusion outlet valve, stop valve, safety valve, inner bag explosion-proof valve and pressure transmitter and the vaccum stop valve etc. that place the bottleneck loong shunt to connect.
Owing to adopted inner bag and nitrogen screen are tiltedly drawn the means of fixation that is suspended on the shell with many Stainless Steel Wires, make that not only the internal fixation of Dewar is firm, also increased the flexibility of firmware, can overcome the influence of various unfavorable factors in the long-distance transport, satisfy the needs of big capacity liquid helium accumulating, many steel wires tiltedly draw the transmission of heat that makes between shell and inner bag apart from increasing along the tangential of inner bag simultaneously, thereby increased thermal resistance, reduced shell to greatest extent by the conduction heat of suspender to inner bag, the day relative evaporation of liquid nitrogen reduces to below 1%; Heating system adopts built-in electrically heated method, make the Dewar type container of accumulating liquid helium can be efficiently, easily directly to user's air feed, because of having saved liquid helium to the helium conversion links, reduce helium and be subjected to contamination of heavy, guaranteed quality of filling gas, air feed purity reaches 99.9995% after tested.This Dewar type container has accumulating efficient height, good, safe in utilization, the convenience operation of quality of filling gas.
Below in conjunction with drawings and Examples the utility model is elaborated.
Fig. 1 is the utility model basic structure generalized section.
Fig. 2 is that the A-A of Fig. 1 is to cross-sectional view.
Fig. 3 is the utility model control flow schematic representation.
For adopting the horizontal Dewar type container of 1000L of double-layered cylinder structure, it mainly is made up of inner bag 3, internal insulation 8, nitrogen screen 5, outer heat insulation layer 7, shell 10, heater 11 and various pipeline valve as depicted in figs. 1 and 2.Inner bag 3 and shell 10 all adopt corrosion resistant plate to make, and its adiabatic form is that vacuum multi-layer insulation adds the liquid nitrogen protection screen.The material of multilayer heat insulation adopts double-deck alumetize polyester fibre film and glass fibre, and the internal insulation 8 between nitrogen screen 5 and the inner bag 3 is the 60-80 layer, and the outer heat insulation layer 7 between nitrogen screen 5 and the shell 10 is the 15-20 layer.Protection of liquid nitrogen screen 5 is the cold screens of being made up of some liquid nitrogen pipe 9 and copper plate welding of liquid nitrogen.After adopting the cold screen of liquid nitrogen, make the hot wall temperature drop to 77K from 300K, radiation heat can reduce to 1/150-1/200.
In order to reduce the transmission of heat of suspender to low temperature area, inner bag 3 tangentially tiltedly is pulled on the shell 10 by many Stainless Steel Wires 6, and Stainless Steel Wire 6 is provided with micro-adjusting mechanism, the position of can regulate inner bag 3 with the joint of shell 10 or inner bag 3; The Dewar bottleneck adopts Stainless Steel Tube, and its length one section of heat insulation layer is 800mm, and an end is welded on the inner bag 3, the destruction that the contraction that produces when preventing precooling may produce structure, and the other end is by hydraulic-formed bellows 12 and shell 10 welding; Liquid helium indusion tube interface also is equipped with at bottleneck 14 places.
This container adopts electrically heated supercharging mode, and heating system is by electric heater 11, pressure transmitter V
12, vacuum tube and high vacuum stop valve V
8Form, pollute liquid helium, will place vacuum tube sealing, that be arranged in inner bag 3 or bottleneck by the electric heater 11 that electric heating apparatus, electric controller are formed, and inject helium, reach heat-transfer effect preferably during with the assurance heating for preventing heating system.
For guaranteeing the work of this Dewar type container safety, this device is provided with inner bag Explosion-proof valve S
3, destroy above the inner bag strength to prevent that pressure from raising; Also be provided with shell Explosion-proof valve S
1In case shell 10 is taken over the interior liquid of the interlayer of inner bag 3 and broken, leak of liquid is gone in the vacuum sandwich, cause laminated vacuum to destroy, pressure sharply raises, and the shell rupture pressure disc can break under lower pressure, play hypotensive effect, guarantee the safety of staff and equipment.
As shown in Figure 3, the control valve of this Dewar type container has the sampling cock V that is connected in parallel
1, one-way valve V
2, steam supply valve V
3, transfusion outlet valve V
4, fluid infusion valve V
5, and stop valve V
6, safety valve S
2, above-mentioned valve is connected with region of interest in the Dewar type container by bottleneck by corresponding pipeline, and with liquid nitrogen feed liquor valve V
11, outlet valve V
10, safety valve S
4, pressure transmitter V
12, high vacuum stop valve V
8With heating control system interface V
7On near the instrument panel that is installed in together the bottleneck 14.
On shell, have the liquid nitrogen import and export 15 and the vacuum pumping port 16 that communicate with the protection of liquid nitrogen screen; For ease of transportation, this container also is provided with roll wheel assembly 1, hook 2 and forklift frame 17 etc.
Assembling for the ease of big volume Dewar type container, this device has adopted a kind of auxiliary support apparatus 4 of squirrel-cage, it comprises little support ring that is slightly larger than the inner bag external diameter and the big support ring that is slightly less than internal diameter of outer cover, with many steel wires 6 tangentially tiltedly being pulled on the big support ring along little support ring.During assembling, inner bag 3 is embedded in the little support ring, wrap multilayer insulant and reinstate steel wire 6 together with nitrogen screen assembly 5 one and hang on big support ring, in the shell 10 of more whole mouse cage being packed into, the big support ring at mouse cage two ends is welded on shell 10 inwalls finishes overall assembling at last.
Claims (6)
1, a kind of liquid helium air feed Dewar type container; the both sides that are positioned at the protection of liquid nitrogen screen between shell and inner bag are equipped with vacuum heat-insulating layer respectively; the bottleneck port that connects inner bag and shell is equipped with valve; the liquid nitrogen import and export that shell is provided with safety valve, vacuum valve and is connected with the protection of liquid nitrogen screen; it is characterized in that: inner bag (3) is connected with shell (10) through suspender, also is equipped with heater (11) in inner bag (3) and the bottleneck.
2, container according to claim 1 is characterized in that suspender is many and tangentially tiltedly is pulled in Stainless Steel Wire (6) on the shell (10) along inner bag (3).
3, container according to claim 2 is characterized in that the steel wire (6) and the joint of inner bag (3) or shell (10) are provided with micro-adjusting mechanism.
4, container according to claim 1 is characterized in that described heater (11) is for placing the electric heating apparatus that is subjected to electric controller control in the vacuum tube.
5, container according to claim 1 is characterized in that described valve is the sampling cock (V that is connected in parallel
1), one-way valve (V
2), steam supply valve (V
3), transfusion outlet valve (V
4), fluid infusion valve (V
5) and stop valve (V
6), safety valve (S
2), inner bag explosion-proof valve (S
3) and pressure transmitter (V
12) and vaccum stop valve door (V
8).
6,, it is characterized in that described heater (11) and pressure transmitter (V according to claim 4 or 5 described containers
12) and vaccum stop valve door (V
8) connect.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN99229411U CN2392069Y (en) | 1999-09-15 | 1999-09-15 | Dewar type container for liquid helium supply |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN99229411U CN2392069Y (en) | 1999-09-15 | 1999-09-15 | Dewar type container for liquid helium supply |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2392069Y true CN2392069Y (en) | 2000-08-16 |
Family
ID=34018660
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN99229411U Expired - Fee Related CN2392069Y (en) | 1999-09-15 | 1999-09-15 | Dewar type container for liquid helium supply |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2392069Y (en) |
Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101064215B (en) * | 2006-02-09 | 2011-10-05 | 英国西门子公司 | Suspension tensioning arrangements |
| CN102767690A (en) * | 2011-05-04 | 2012-11-07 | 朱永彪 | Liquid methane kinetic energy cold storage device |
| CN102853247A (en) * | 2011-06-27 | 2013-01-02 | 朱永彪 | Kinetic energy cold reservoir of liquid methane |
| CN102954346A (en) * | 2011-08-17 | 2013-03-06 | 总装备部工程设计研究总院 | Cryogenic insulation mobile storage tank safety system |
| CN103174930A (en) * | 2011-12-26 | 2013-06-26 | 中国科学院物理研究所 | Ultrahigh vacuum low-temperature Dewar with damping function |
| CN103470946A (en) * | 2013-08-29 | 2013-12-25 | 北京宇航系统工程研究所 | High-pressure supercritical helium storage tank |
| CN104565801A (en) * | 2014-05-20 | 2015-04-29 | 张成珍 | Biogas slurry cold storage cavern capable of providing kinetic energy |
| CN104565799A (en) * | 2014-05-20 | 2015-04-29 | 朱永彪 | Natural gas cold storage cavern |
| CN106015921A (en) * | 2016-07-07 | 2016-10-12 | 张家港富瑞氢能装备有限公司 | Vertical container used for storing low-temperature liquid |
| CN107397544A (en) * | 2017-07-21 | 2017-11-28 | 中国科学院上海微系统与信息技术研究所 | Biological magnetic chart instrument probe and magnetocardiograph |
| CN108050377A (en) * | 2017-11-24 | 2018-05-18 | 江苏韩通船舶重工有限公司 | A kind of vacuum and low temperature tank case being readily transported and its processing technology |
| CN108386656A (en) * | 2018-03-13 | 2018-08-10 | 北京卫星环境工程研究所 | Leakage temperature barrier and method for ultralow temperature cold plate |
| CN111022907A (en) * | 2019-12-17 | 2020-04-17 | 常州市旭如安金属材料科技有限公司 | LNG vehicle-mounted gas cylinder supercharging device |
| CN111896578A (en) * | 2020-07-28 | 2020-11-06 | 中国科学院近代物理研究所 | Superfluid helium dewar low-temperature constant-temperature testing device |
| CN113359001A (en) * | 2020-03-04 | 2021-09-07 | 中国科学院理化技术研究所 | Chip testing system |
| CN114484262A (en) * | 2022-02-11 | 2022-05-13 | 中国科学院上海微系统与信息技术研究所 | Dewar flask |
-
1999
- 1999-09-15 CN CN99229411U patent/CN2392069Y/en not_active Expired - Fee Related
Cited By (22)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101064215B (en) * | 2006-02-09 | 2011-10-05 | 英国西门子公司 | Suspension tensioning arrangements |
| CN102767690A (en) * | 2011-05-04 | 2012-11-07 | 朱永彪 | Liquid methane kinetic energy cold storage device |
| CN102853247A (en) * | 2011-06-27 | 2013-01-02 | 朱永彪 | Kinetic energy cold reservoir of liquid methane |
| CN102954346B (en) * | 2011-08-17 | 2015-05-20 | 总装备部工程设计研究总院 | Cryogenic insulation mobile storage tank safety system |
| CN102954346A (en) * | 2011-08-17 | 2013-03-06 | 总装备部工程设计研究总院 | Cryogenic insulation mobile storage tank safety system |
| CN103174930A (en) * | 2011-12-26 | 2013-06-26 | 中国科学院物理研究所 | Ultrahigh vacuum low-temperature Dewar with damping function |
| CN103174930B (en) * | 2011-12-26 | 2015-10-14 | 中国科学院物理研究所 | A kind of ultrahigh vacuum cooled cryostat carrying shock-absorbing function |
| CN103470946A (en) * | 2013-08-29 | 2013-12-25 | 北京宇航系统工程研究所 | High-pressure supercritical helium storage tank |
| CN103470946B (en) * | 2013-08-29 | 2015-05-27 | 北京宇航系统工程研究所 | High-pressure supercritical helium storage tank |
| CN104565799A (en) * | 2014-05-20 | 2015-04-29 | 朱永彪 | Natural gas cold storage cavern |
| CN104565801A (en) * | 2014-05-20 | 2015-04-29 | 张成珍 | Biogas slurry cold storage cavern capable of providing kinetic energy |
| CN106015921A (en) * | 2016-07-07 | 2016-10-12 | 张家港富瑞氢能装备有限公司 | Vertical container used for storing low-temperature liquid |
| CN106015921B (en) * | 2016-07-07 | 2018-05-15 | 张家港富瑞氢能装备有限公司 | A kind of vertical vessel for storing cryogenic fluids |
| CN107397544A (en) * | 2017-07-21 | 2017-11-28 | 中国科学院上海微系统与信息技术研究所 | Biological magnetic chart instrument probe and magnetocardiograph |
| CN108050377A (en) * | 2017-11-24 | 2018-05-18 | 江苏韩通船舶重工有限公司 | A kind of vacuum and low temperature tank case being readily transported and its processing technology |
| CN108386656A (en) * | 2018-03-13 | 2018-08-10 | 北京卫星环境工程研究所 | Leakage temperature barrier and method for ultralow temperature cold plate |
| CN111022907A (en) * | 2019-12-17 | 2020-04-17 | 常州市旭如安金属材料科技有限公司 | LNG vehicle-mounted gas cylinder supercharging device |
| CN113359001A (en) * | 2020-03-04 | 2021-09-07 | 中国科学院理化技术研究所 | Chip testing system |
| CN113359001B (en) * | 2020-03-04 | 2022-07-22 | 中国科学院理化技术研究所 | Chip testing system |
| CN111896578A (en) * | 2020-07-28 | 2020-11-06 | 中国科学院近代物理研究所 | Superfluid helium dewar low-temperature constant-temperature testing device |
| CN114484262A (en) * | 2022-02-11 | 2022-05-13 | 中国科学院上海微系统与信息技术研究所 | Dewar flask |
| CN114484262B (en) * | 2022-02-11 | 2022-11-08 | 中国科学院上海微系统与信息技术研究所 | Dewar flask |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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 |