CN107228250A - The cryogenic fluid transfer pipeline and its application method of a kind of cold screen of band - Google Patents
The cryogenic fluid transfer pipeline and its application method of a kind of cold screen of band Download PDFInfo
- Publication number
- CN107228250A CN107228250A CN201710411733.8A CN201710411733A CN107228250A CN 107228250 A CN107228250 A CN 107228250A CN 201710411733 A CN201710411733 A CN 201710411733A CN 107228250 A CN107228250 A CN 107228250A
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- cold screen
- cold
- screen
- inner tube
- fluid transfer
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L53/00—Heating of pipes or pipe systems; Cooling of pipes or pipe systems
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L9/00—Rigid pipes
- F16L9/18—Double-walled pipes; Multi-channel pipes or pipe assemblies
- F16L9/19—Multi-channel pipes or pipe assemblies
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Thermal Insulation (AREA)
Abstract
The invention discloses a kind of cryogenic fluid transfer pipeline of the cold screen of band and its application method.The cryogenic fluid transfer pipeline includes outer tube, and the inner tube of transporting low temperature fluid is set between outer tube and inner tube, cold screen in a tubular form, and the cold screen is to be used to fill refrigerating fluid inside the sandwich by interior cold screen and outer cold screen suit, the interlayer.The present invention to cold screen without constantly conveying refrigerating fluid, while solving, traditional cold screen thermal efficiency is low, cold screen poor temperature uniformity deficiency, can be widely applied to cryogenic fluid transfer field.
Description
Technical field
The invention belongs to cryogenic fluid transfer field, more particularly to a kind of cold screen of band cryogenic fluid feed conduit road and its make
Use method.
Background technology
Multichannel compound pipe is mainly for delivery of very low temperature flow (such as liquid helium), in superconduction, deep cooling, medical science, scientific research
All applied Deng field.Because the very low temperature flow of its conveying is general very rare and production is difficult, therefore its price is abnormal
It is expensive.In non-active area, such very low temperature flow is transmitted often through multichannel compound pipe.It is such super in order to reduce
Cryogen improves service efficiency, reduces cost in the evaporation capacity of non-active area, typically can be inside multichannel compound pipe
Plus one layer of cold screen, reduce the radiation leakage heat of very low temperature flow.Such a cold screen species is various, as the cold screen of copper, the cold screen of aluminium are all wide
It is general to be employed, although cold screen material is not quite similar, but its principle is consistent, be exactly screen surface contact (mode such as welding) it is some
The cold pipe of root (main function is the other non-precious cooling fluids of transmission), allows the cold of cold pipe to be transmitted on cold screen, gives ultralow temperature stream
The conveying of body provides peripheral low temperature environment.
Such as, Chinese patent CN2755404Y discloses a kind of Laminated vacuum low-temperature fluid with cold-screen pipeline.The pipe
Road includes following technical characteristic：Vacuum pumping port, pressure relief device, outer tube bellows are housed on outer tube, are equipped with the inner chamber of outer tube
Helium tube and cold screen are fixed with partially supported plate in helium tube and supporting plate assembly, supporting plate assembly, the helium tube soldering is in cold screen
On.
There is following defect in cold screen of the prior art：
First, such cold screen cold carrys out self cooling pipe, and mostly by being welded to connect between cold Guan Yuleng screens.Due to its connection
, there is thermal contact resistance in the inherent shortcoming of mode, cause the cold of cold pipe and can not pass to completely on cold screen, no between cold pipe and cold screen
The temperature fall time of cold screen is increase only, while also result in cooling fluid waste.
Second, cold Guan Yuleng screens contact area is limited, and the cold at other noncontact positions is conducted through from contact site
Come, certainly exist thermal resistance on the path of conduction, cause the temperature homogeneity of cold screen poor, so as to influence multichannel compound pipe
Transmission performance.
Third, traditional cold screen is mostly cylinder type, thermal capacity is small, it is ensured that the cold screen temperature moment meets condition, just
Cooling fluid is necessarily required constantly to convey, such pattern also greatly adds the waste of cooling fluid.
The content of the invention
The present invention makes improvements for existing technical problem, i.e., the technical problems to be solved by the invention are to provide a kind of band
The cryogenic fluid transfer pipeline of cold screen, the pipeline without constantly conveying refrigerating fluid to cold screen, while avoid traditional cold pipe with
Cold screen thermally contacts the deficiency of less efficient, cold screen poor temperature uniformity.
To solve the above problems, the invention provides a kind of cryogenic fluid transfer pipeline of the cold screen of band, including outer tube, conveying
The inner tube of cryogen, is set between outer tube and inner tube, cold screen in a tubular form, and the cold screen is by interior cold screen and outer cold screen set
It is used to fill refrigerating fluid inside the sandwich of dress, the interlayer.
Further, the cold screen is exported provided with the cold screen positioned at cold screen top that supply and discharge goes out refrigerating fluid, and the cold screen is provided with
The cold screen entrance positioned at cold screen bottom for injecting refrigerating fluid.
Further, cold screen entrance and cold the screen outlet is respectively one, and one end I that cold screen entrance is arranged in cold screen axial direction is attached
Closely, cold screen outlet is arranged near the other end II of cold screen axial direction, projection of cold screen entrance and cold the screen outlet in cold screen cross section
Circumferentially stagger 180 degree along cold screen.
Further, the cold screen entrance and cold screen outlet are respectively one, be respectively positioned on cold screen axially with one end I near, cold screen
The projected position of entrance and the outlet of cold screen in cold screen cross section circumferentially staggers 180 degree along cold screen；The cold screen entrance is connected along cold
The pipeline that screen is axially stretched into inside cold screen, the pipeline is extended near the other end II of cold screen axial direction, and will near the II of end
Refrigerating fluid is released into cold screen interlayer.
Further, the interior cold screen is fixed in outer cold screen by mending core, and the benefit core is to be set in interior cold screen and outer cold screen
Between, along several axial arranged cyclic structures of cold screen.
Further, in addition to along inner tube be axially equally spaced, several inner tube support groups between inner tube and cold screen
Part；It is provided with the middle part of the inner tube support component inside the through hole passed through for inner tube, the through hole and is provided with bulge-structure, inner tube is convex by this
Structure is played to be stuck in inner tube support component；Inner tube support component also includes the supporting plate for being located at its left and right ends respectively, every piece of branch
The plate plane of fagging is stuck in the inner wall surface of cold screen parallel to inner tube axis and the supporting plate lower edges parallel with cold screen axle.
Further, in addition to along outer tube be axially equally spaced, several cold screen support groups between cold screen and outer tube
Part, the cold screen support member that each cold screen support component is angularly equidistant arrangement by three circumferencial directions along outer tube is constituted, each
Cold screen support member is made up of inner support plate that is orthogonal and being fixedly connected and external support board；The inner support plate is stuck in cold screen
Outer wall surface on, its plate in-plane and cold screen are axially vertical, its close to cold screen outer surface edge be and outer cold screen circular arc
The recess shape that surface matches；The external support board is stuck in the inner wall surface of outer tube, and its plate plane and cold screen are axially in parallel.
Present invention also offers the application method of the cryogenic fluid transfer pipeline of the cold screen of above-mentioned band, comprise the following steps：
Step one, refrigerant liquid is injected into cold screen, fills up cold screen interlayer, precooling is carried out to cold screen；
Step 2, inner tube starts to transmit cryogenic liquid, and the refrigerating fluid of gasification is discharged from cold screen；
Step 3, when liquid measure of freezing in cold screen is less than setting low value, cold screen, supplement refrigerating fluid are injected until system by refrigerating fluid
Cold liquid measure is higher than setting high level.
The present invention in cryogenic fluid transfer pipeline by setting cold screen, and the cold screen is made up of interior cold screen and outer cold screen, inside and outside
With certain volume space for storage refrigerating fluid between cold screen.Refrigerating fluid can enter directly into cold screen inner space, compared to system
The mode of cold Guan Yuleng screens soldering, without any thermal contact resistance, the cold of cooling fluid can be sufficiently utilized, and reduce cold screen
Temperature fall time.Because the refrigerating fluid capacity that the cold screen of sandwich is stored is big, refrigerating fluid can be spaced conveying, without continous way conveying,
Reduce the waste of refrigerating fluid.In cold screen course of normal operation, refrigerating fluid is full of all the time in cold screen inner space, it is ensured that cold screen
Temperature homogeneity it is basically identical.
Cold screen outlet and cold screen entrance are vertically the overlying relation of gravity in the reverse direction so that low temperature stream
During body transmission pipeline normal work, convenient exported from cold screen of the refrigerating fluid of gasification is discharged.
Arrange cold screen entrance and cold screen outlet port at a distance as far as possible so that refrigerating fluid is abundant in cold screen mezzanine space
Flowing, improves the temperature homogeneity of cold screen.
The structure and connected mode of inner tube support component and cold screen support component, on the premise of structural stability is ensured,
Itself and cold screen, inner tube, the contact area of outer tube are reduced as far as possible, heat conduction losses are also just reduced, and improve whole low temperature stream
The refrigeration of body transmission pipeline.
Brief description of the drawings
Fig. 1 is the viewgraph of cross-section of the present invention, is also the front view of the present invention；
Fig. 2 is Fig. 1 A-A to sectional view；
Fig. 3 is Fig. 1 of the embodiment of the present invention two B-B direction sectional view；
Fig. 4 is inner tube support component structure chart of the present invention；
Fig. 5 is cold screen support component structure chart of the invention.
Embodiment
Describe to be used to disclose the present invention below so that those skilled in the art can realize the present invention.It is excellent in describing below
Embodiment is selected to be only used as citing, it may occur to persons skilled in the art that other obvious modifications.
Embodiment one：
As shown in figure 1, the sectional view of the cryogenic fluid transfer pipeline of the cold screen of band in the present embodiment, is also the present embodiment
Front view.Cold screen structure is radially including setting gradually from inside to outside and coaxial inner tube 10, cold screen 30 and outer tube 20.Inner tube 10
Cold screen inner surface is installed on by inner tube support component 40.Cold screen is installed on the inner surface of outer tube 20 by cold screen support component 50.
In order to extract vacuum to cryogenic fluid transfer pipeline, outer tube 20 is provided with vacuum pumping port and pressure relief device.Cold screen with
It is vacuum interlayer between inner tube, between cold screen and outer tube.Heat-insulating material is coated in inner tube, the outer wall of cold screen.
Cold screen 30 is made up of outer cold screen 32 and interior cold screen 31, and inside and outside cold screen is the cylinder type being coaxially disposed, inside and outside cold
Provided with benefit core in ring-type interlayer between screen.
As shown in Fig. 2 inner tube support component 40 and cold screen support component 50 are multiple, and along the axial direction of low temperature transmission pipeline
It is equally spaced.From engineering design and realizing, along low temperature transmission pipeline axle under the conditions of pipeline configuration strength and stiffness are met
The quantity of inner tube support component 40 and cold screen support component 50 is reduced on line as far as possible.
In the present embodiment, inner tube 10 is two, is respectively used to entering with going back to for very low temperature flow.
Fig. 4 is the structure chart of the present embodiment inner tube support component 40, and each middle part of inner tube support component 40 is provided with two through hole,
Each through hole correspondence fixes an inner tube.Loss of weight through hole separately is provided with inner tube support component 40, is ensureing the condition of support strength
Lower mitigation own wt, reduces heat conduction transmission, while being easy to processing.The inner tube support component left and right ends are respectively provided with one piece of support
Plate.Plane of the central shaft of cryogenic fluid transfer pipeline parallel to supporting plate.Under stationary state, the both sides up and down of each supporting plate
Edge parallel to cryogenic fluid transfer pipeline axial direction axial direction also parallel to interior cold screen 31, and including the edge card cold screen 31 it is interior
Wall surface.By the mounting means, only there is line with the inner surface of cold screen 30 on its four corners and connect in inner tube support component 40
Touch, reduce the contact surface in structure connection, that is, reduce transmission loss of the cold of inner tube 10 through inner tube support component 40.This
In embodiment, the through-hole wall in the middle part of inner tube support component is provided with the bulge-structure of some clamp inner tubes, and inner tube passes through the projection
Structure is stuck in inner tube support component center.The setting of bulge-structure, which is equally played, to be reduced contact area, reduces the work of loss of refrigeration capacity
With.
In the present embodiment, each cold screen support component 50 is made up of three cold screen support members, these three cold screen support member edges
The ring circumferential direction of outer tube is angularly equidistant arrangement.Fig. 5 is cold screen support component structure chart of the invention, and each cold screen support member includes
For blocking the inner support plate of the cold outer surface of screen 30 and being constituted for the external support board for being stuck in the inner surface of outer tube 20.Inner support plate is leaned on
The edge of nearly cold screen outer surface is the recess shape matched with external screen arc-shaped surface.Inner support plate is solid by bolt with external support board
Connect calmly, and two plate planes are mutually perpendicular to.Under installment state, transmission pipeline central shaft is vertical with the plate plane of inner support plate, with
The plate plane of external support board is parallel.Each external support board includes two edges parallel with outer axial tube, and this two edges are stuck in outer
Inside pipe wall.
For interior cold screen is fixedly installed in outer cold screen, mends core and play a part of structural support.Mend the structure type of core
It is various, spaced set vertically.In the present embodiment, each core of mending is the annulus knot being set between interior cold screen and outer cold screen
Structure.The circular ring structure opens the through hole of some confession coolant flows.
In the present embodiment, cold screen 30 is inner clip Rotating fields, and outer cold screen 32 in the interlayer of interior cold screen 31 with being full of refrigerant liquid.
Cold screen entrance 34 is used to input refrigerating fluid to cold screen, and cold screen exports 33 cooling screens discharge refrigerating fluid, and its location arrangements mode is more
Flexibly.Cold screen outlet 33 is located at the top of the cold vertical direction of screen entrance 34 so that during cryogenic fluid transfer pipeline normal work, gas
Discharge the convenient cold screen outlet 33 from positioned at cold screen top of the refrigerating fluid of change.Cold screen entrance 34 and cold screen are exported as far as possible in engineering
33 are remotely locatable.Such as along cold screen 30 axially, cold screen entrance 34 and cold screen outlet 33 is remotely locatable near axial two ends as far as possible.
It so may be such that refrigerating fluid fully flows in cold screen mezzanine space, improve the temperature homogeneity of cold screen 30.
Embodiment two：
In some cases, it is necessary to which cold screen entrance 34 and cold screen outlet 33 to be arranged in same one end of the cold axis of screen 30, it can lead to
Following manner is crossed to be solved.As shown in Fig. 3 embodiment two, one end I of cold screen 30, provided with the input system positioned at cold screen bottom
The cold screen entrance 34 of cold liquid, the cold screen positioned at the discharge refrigerating fluid on cold screen top export 33.Cold screen entrance 34 and cold screen outlet 33
Projected position in cold screen cross section circumferentially staggers 180 degree along cold screen.Cold screen entrance connection is axially stretched into inside cold screen along cold screen
Pipeline (pipeline is not shown in FIG. 1), the pipeline extended near the other end II of cold screen axial direction, and near the II of end
Refrigerating fluid is released into cold screen interlayer.Finally, the refrigerating fluid near II ends flows out from the cold screen outlet 33 at I ends again so that system
Cold liquid fully flows in cold screen mezzanine space, improves the temperature homogeneity of cold screen.
Before cryogenic fluid transfer pipeline in above-mentioned two embodiment is started working, cold screen 30 first wants precooling.Refrigerating fluid is from cold
Screen entrance 34 enters, and when the full cooling fluid of the volume space product of cold screen 30, stops the conveying of cooling fluid, the cold precooling work of screen 30
Work terminates.During cryogenic fluid transfer pipeline normal work, the cooling fluid of gasification is discharged from the cold screen outlet 33 on top, works as storage
When refrigerating fluid loss in cold screen 30 is excessive, the conveying of refrigerating fluid is reopened.During cold 30 precooling of screen, cooling fluid is directly entered
Enter to the cold inside mezzanine space of screen 30, between the two without any thermal contact resistance, the cold of refrigerating fluid can be sufficiently utilized, reduce
The temperature fall time of cold screen 30.In addition, the conveying of refrigerating fluid can be subtracted with successional in intermittent, rather than traditional approach
The waste of refrigerating fluid is lacked.In the cold course of normal operation of screen 30, refrigerating fluid is filled with all the time in the cold inner space of screen 30, so as to protect
The temperature homogeneity for having demonstrate,proved cold screen is basically identical.
General principle, principal character and the advantages of the present invention of the present invention has been shown and described above.The technology of the industry
Personnel are it should be appreciated that the present invention is not limited to the above embodiments, and that described in above-described embodiment and specification is the present invention
Principle, various changes and modifications of the present invention are possible without departing from the spirit and scope of the present invention, these change and
Improvement is both fallen within the range of claimed invention.The protection domain of application claims by appended claims and its
Equivalent is defined.
Claims (8)
1. a kind of cryogenic fluid transfer pipeline of the cold screen of band, including outer tube, the inner tube of transporting low temperature fluid, are set in outer tube and interior
Cold screen between pipe, in a tubular form, it is characterised in that the cold screen is the sandwich by interior cold screen and outer cold screen suit,
It is used to fill refrigerating fluid inside the interlayer.
2. according to the cryogenic fluid transfer pipeline of the cold screen of band described in claim 1, it is characterised in that the cold screen is provided with supply and discharge
The cold screen positioned at cold screen top for going out refrigerating fluid is exported, and the cold screen is provided with the cold screen positioned at cold screen bottom for injection refrigerating fluid
Entrance.
3. according to the cryogenic fluid transfer pipeline of the cold screen of band described in claim 2, it is characterised in that the cold screen entrance and cold
Screen outlet is respectively one, and cold screen entrance is arranged near one end I of cold screen axial direction, and cold screen outlet is arranged in the another of cold screen axial direction
Hold near II, projection of cold screen entrance and cold the screen outlet in cold screen cross section is circumferentially staggered 180 degree along cold screen.
4. according to the cryogenic fluid transfer pipeline of the cold screen of band described in claim 2, it is characterised in that the cold screen entrance and cold
Screen outlet is respectively one, be respectively positioned on cold screen axially with one end I near, projection of cold screen entrance and cold the screen outlet in cold screen cross section
Circumferentially stagger 180 degree along cold screen position；The pipeline that the cold screen entrance connection is axially stretched into inside cold screen along cold screen, the pipeline prolongs
Near the other end II for extending cold screen axial direction, and refrigerating fluid is released into cold screen interlayer near the II of end.
5. according to the cryogenic fluid transfer pipeline of the cold screen of band any one of Claims 1-4, it is characterised in that described
Interior cold screen is fixed in outer cold screen by mending core, the benefit core to be set between interior cold screen and outer cold screen, it is axial arranged along cold screen
Several cyclic structures.
6. according to the cryogenic fluid transfer pipeline of the cold screen of band any one of Claims 1-4, it is characterised in that also wrap
Include along inner tube be axially equally spaced, several inner tube support components between inner tube and cold screen；In the inner tube support component
Portion, which is provided with inside the through hole passed through for inner tube, the through hole, is provided with bulge-structure, and inner tube is stuck in inner tube by the bulge-structure and supported
In component；Inner tube support component also includes the supporting plate for being located at its left and right ends respectively, the plate plane of every piece of supporting plate parallel to
Inner tube axis and the supporting plate lower edges parallel with cold screen axle are stuck in the inner wall surface of cold screen.
7. according to the cryogenic fluid transfer pipeline of the cold screen of band any one of Claims 1-4, it is characterised in that also wrap
Include along outer tube be axially equally spaced, several cold screen support components between cold screen and outer tube, each cold screen support component
The cold screen support member for being angularly equidistant arrangement by three circumferencial directions along outer tube is constituted, and each cold screen support member is by being mutually perpendicular to
And be fixedly connected inner support plate and external support board composition；The inner support plate is stuck in the outer wall surface of cold screen, and its plate is put down
Face direction and cold screen are axially vertical, and it is the recess shape matched with outer cold screen arc-shaped surface close to the edge of cold screen outer surface；
The external support board is stuck in the inner wall surface of outer tube, and its plate plane and cold screen are axially in parallel.
8. the application method of the cryogenic fluid transfer pipeline of the cold screen of band described in a kind of claim 1, it is characterised in that including such as
Lower step：
Step one, refrigerant liquid is injected into cold screen, fills up cold screen interlayer, precooling is carried out to cold screen；
Step 2, inner tube starts to transmit cryogenic liquid, and the refrigerating fluid of gasification is discharged from cold screen；
Step 3, when liquid measure of freezing in cold screen is less than setting low value, injects cold screen, supplement refrigerating fluid is until refrigerating fluid by refrigerating fluid
Amount is higher than setting high level.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710411733.8A CN107228250A (en) | 2017-06-05 | 2017-06-05 | The cryogenic fluid transfer pipeline and its application method of a kind of cold screen of band |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710411733.8A CN107228250A (en) | 2017-06-05 | 2017-06-05 | The cryogenic fluid transfer pipeline and its application method of a kind of cold screen of band |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107228250A true CN107228250A (en) | 2017-10-03 |
Family
ID=59934691
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710411733.8A Pending CN107228250A (en) | 2017-06-05 | 2017-06-05 | The cryogenic fluid transfer pipeline and its application method of a kind of cold screen of band |
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| CN (1) | CN107228250A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2056612A (en) * | 1979-08-08 | 1981-03-18 | Pennwalt Corp | Cryogenic fluid transfer line |
| CN1530967A (en) * | 2003-03-10 | 2004-09-22 | 北京云电英纳超导电缆有限公司 | Thermal insulative high-temperature superconductive cable with double-layer cooling channel structure |
| CN2913782Y (en) * | 2005-07-06 | 2007-06-20 | 贾林祥 | Thermally-insulated support means of vacuum interlayer cryogenic fluid delivery conduit with cooling screen |
| CN103903830A (en) * | 2014-03-10 | 2014-07-02 | 中国科学院等离子体物理研究所 | Cold supporting structure in superconducting magnet feeder system |
| CN104565588A (en) * | 2014-12-31 | 2015-04-29 | 东莞中子科学中心 | Low-temperature fluid conveying pipeline |
| CN106481893A (en) * | 2015-09-02 | 2017-03-08 | 江苏宏泰橡胶助剂有限公司 | A kind of Molten sulphur conveying pipe |
-
2017
- 2017-06-05 CN CN201710411733.8A patent/CN107228250A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2056612A (en) * | 1979-08-08 | 1981-03-18 | Pennwalt Corp | Cryogenic fluid transfer line |
| CN1530967A (en) * | 2003-03-10 | 2004-09-22 | 北京云电英纳超导电缆有限公司 | Thermal insulative high-temperature superconductive cable with double-layer cooling channel structure |
| CN2913782Y (en) * | 2005-07-06 | 2007-06-20 | 贾林祥 | Thermally-insulated support means of vacuum interlayer cryogenic fluid delivery conduit with cooling screen |
| CN103903830A (en) * | 2014-03-10 | 2014-07-02 | 中国科学院等离子体物理研究所 | Cold supporting structure in superconducting magnet feeder system |
| CN104565588A (en) * | 2014-12-31 | 2015-04-29 | 东莞中子科学中心 | Low-temperature fluid conveying pipeline |
| CN106481893A (en) * | 2015-09-02 | 2017-03-08 | 江苏宏泰橡胶助剂有限公司 | A kind of Molten sulphur conveying pipe |
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Application publication date: 20171003 |
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