CN207471021U - A kind of vacuum interlayer cryogenic fluid transfer pipeline - Google Patents
A kind of vacuum interlayer cryogenic fluid transfer pipeline Download PDFInfo
- Publication number
- CN207471021U CN207471021U CN201721325963.4U CN201721325963U CN207471021U CN 207471021 U CN207471021 U CN 207471021U CN 201721325963 U CN201721325963 U CN 201721325963U CN 207471021 U CN207471021 U CN 207471021U
- Authority
- CN
- China
- Prior art keywords
- large diameter
- annulus
- minor diameter
- vacuum interlayer
- fluid transfer
- 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.)
- Active
Links
Landscapes
- Thermal Insulation (AREA)
Abstract
The utility model discloses a kind of vacuum interlayer cryogenic fluid transfer pipelines, including inner and outer tubes, it is vacuum interlayer between said inner tube and the outer tube, it is characterized in that, support construction is equipped between said inner tube and the outer tube, the support construction includes a large diameter circle, and the large diameter circle both sides are respectively symmetrically equipped with a minor diameter annulus, are connected between the large diameter circle and the two minor diameter annulus by connecting filament；The large diameter circle is equipped with multiple radially adjustable for height contact structures, and the minor diameter annulus is equipped with multiple radially adjustable for height contact structures；Said inner tube is located in the minor diameter annulus connect fixation by the contact structures on the minor diameter annulus with the minor diameter annulus；The outer tube connect fixation by the contact structures on the large diameter circle with the large diameter circle.The utility model use a variety of insulated designs, can flexible modulation length, can effectively reduce the leaking heat from indoor temperature end.
Description
Technical field
The utility model belongs to a kind of vacuum interlayer cryogenic fluid transfer pipeline, is applied particularly in low temperature, vacuum system,
To the pipeline of cryogen long-distance sand transport.
Background technology
The bimetallic tube with vacuum interlayer is generally used to the transmission pipeline of the cryogens such as liquid helium, liquid nitrogen at present, it is existing
Cryogenic fluid feed conduit road is complicated, and function is single, poor insulation property.Since the fluid temperature (F.T.) of conveying is extremely low, even if using
The mode of vacuum insulation leaks hot still larger, the support construction being provided between the inner tube of low temperature and the outer tube of room temperature
It is the predominating path of heat transfer, the special designing of structural shape is extremely important.In existing cryogenic fluids conveying technology, branch
Support structure is generally using glass fibre nonmetallic materials, and machine-shaping difficulty is larger, complicated, and cost is higher, heat-insulating property
It is bad, and the mostly structural shape of radial support, this support construction pattern are limited by inner tube and outer tube diameter.
Heat passes to low temperature inner tube region from room temperature outer tube by support construction, in conduction process, is led according to Fourier
Hot law, unit interval are proportional to rate of temperature change and section face on the heat-conducting section direction by the heat conduction amount of heat-conducting section
Product.In order to reduce leakage heat, the support construction of design can maximally reduce leakage under the premise of mechanical structure stabilization is ensured
Heat.Following factor is usually considered for support construction：(1) ensure there are enough mechanical strengths in vacuum, low temperature environment；(2)
There are rational heat-conducting section and heat conduction length in indoor temperature end and low-temperature end.
Utility model content
The utility model aim is to propose a kind of vacuum interlayer cryogenic fluid transfer pipeline, for the defeated of cryogen
It send, the heat-insulating property for solving current vacuum interlayer cryogenic fluid feed conduit road is bad, function is single, process and assemble is complicated, cost
The problems such as higher.The cryogenic transfer pipes have smaller leakage heat loss, enough mechanical strengths and mechanical stability, machine-shaping
And the features such as assembling is simple, cost is relatively low.
To reach These characteristics, the technical solution of the utility model is：
A kind of vacuum interlayer cryogenic fluid transfer pipeline including inner and outer tubes, is between said inner tube and the outer tube
Vacuum interlayer a, which is characterized in that support construction is equipped between said inner tube and the outer tube, it is big that the support construction includes one
Diameter annulus, the large diameter circle both sides are respectively equipped with a minor diameter annulus, the large diameter circle and two minor diameters
It is connected between annulus by connecting filament；The large diameter circle is equipped with multiple adjustable for height contact knots radially
Structure, the minor diameter annulus are equipped with multiple adjustable for height contact structures radially inward；Said inner tube is located at described small
In diameter annulus and by the contact structures on the minor diameter annulus fixation is connect with the minor diameter annulus；It is described outer
Pipe connect fixation by the contact structures on the large diameter circle with the large diameter circle.
Further, if dried layer heat-insulating material is wrapped up in said inner tube outer surface.
Further, it is formed by stacking if the dried layer heat-insulating material replaces for metallized film with fiber interlayer.
Further, on the large diameter circle, be respectively equipped with multiple screw holes on the minor diameter annulus, the screw hole with
It matches screw and forms the contact structures.
Further, the minor diameter annulus is symmetrically arranged on the both sides of the large diameter circle.
Further, the minor diameter annulus and the large diameter circle are coaxial.
Further, the inner surface of the outer tube at proximal port by being provided with limited block.
Further, the connecting filament is metal strip；The large diameter circle is metal ring, and the minor diameter annulus is
Metal ring.
Further, said inner tube sets several sections of bellowss；The outer tube sets several sections of bellowss.
The utility model is a kind of being conveyed without cold screen vacuum interlayer cryogenic fluid transfer pipeline including being used for for all-metal
The inner tube of cryogen, said inner tube outer surface wrapped multiple heat-insulating material are vacuum interlayer between said inner tube and outer tube, energy
Enough effectively heat-insulated, said inner tube is connect by metal support structure with outer tube, and the heat that can reduce indoor temperature end reaches low-temperature end.
The support construction is fixed on by screw point contact on the outer surface of said inner tube.Support frame as described above is all-metal
Structure.The support construction includes large diameter circle, connecting filament, minor diameter annulus, screw；The large diameter circle with it is described small
Diameter annulus is tiltedly connected by several connecting filaments.
The large diameter circle is with passing through the screw and the outer tube point contact.The minor diameter annulus passes through the spiral shell
Nail and said inner tube point contact.
The positive effect of the utility model is：
1. the support construction set between inner tube and outer tube uses all-metal material, and setting of tiltedly connecting of its connecting filament
Meter, the length of metal connecting filament are not limited by inner and outer pipe size, can rationally increase heat transfer with flexible modulation length
Path, and its sectional area is smaller, effectively reduces the leaking heat from indoor temperature end.Support construction and inner tube and outer tube many places simultaneously
Using point contact, thermal contact resistance is increased, effectively reduces arrival low temperature inner tube of the heat from room temperature outer tube.
2. since cryogenic fluid transfer pipeline is in addition to multilayer insulant, whole parts all using metal material, have
The features such as enough mechanical strengths and mechanical stability, machine-shaping and assembling are simply, cost is relatively low.
In above-mentioned all-metal vacuum interlayer cryogenic fluid transfer pipeline, conductive heat leakage is reduced by several special designings
With radiation leakage heat.In conduction process, the unit interval is proportional on the heat-conducting section direction by the heat conduction amount of heat-conducting section and cut
The rate of temperature change of face area, thus select metal connecting filament come reduce heat-conducting section product, using metal connecting filament tiltedly connection come
Increase heat-transfer path, the final rate of temperature change reduced on heat conduction direction.Many places increase thermal contact resistance using point contact simultaneously,
Effectively reduce the heat from indoor temperature end.There is the mode of multilayer insulant in inner tube wrapping and reduce radiation leakage heat to reach.
In the vacuum interlayer cryogenic fluid transfer pipeline of above-mentioned all-metal, in order to it is simple in structure, be easily installed, this structure
It is not provided with cold screen.Particularly support construction uses the material of all-metal, there is enough mechanical strengths and mechanical stability, processing essence
Degree is higher, heat-insulating property is preferable, assembling is convenient, has a wide range of application, and especially cost is relatively low, and good application prospect.
Description of the drawings
Fig. 1 is the structure diagram (outer tube broken section) of the utility model.
Fig. 2 is the cross-sectional view of the utility model.
Fig. 3 is the close-up schematic view of Fig. 2.
Fig. 4 is the sectional view in the AA faces along Fig. 2.
Fig. 5 is support structure schematic diagram.
Wherein, 1- inner tubes, 2- multilayer insulants, 3- outer tube bellowss, 4- inner tube bellowss, 5- support constructions, outside 6-
Pipe, the minor diameter annulus of 51- support constructions, the large diameter circle of 52- support constructions, 53- connecting filaments, 54- screws.
Specific embodiment
The utility model is described in detail in conjunction with drawings and examples.
As shown in Figure 1, 2, transmission pipeline includes the all-metal vacuum interlayer cryogenic fluid transfer pipeline of the utility model：It is interior
Pipe, outer tube and support construction.The material selection Stainless steel 316 L of inner tube, for transporting low temperature fluid, inner tube outer surface package is more
Layer heat-insulating material, replaces with fiber interlayer and is formed by stacking if multilayer insulant is dried layer metallized film, the material selection of outer tube
304 stainless steels or 316L stainless steels are vacuum interlayer between inner tube and outer tube, are set on length direction inner and outer pipe when necessary
Several bellowss are put, to compensate the deflection of cold and hot contraction.The close-up schematic view of Fig. 2 is as shown in Figure 3；The AA faces along Fig. 2
Sectional view it is as shown in Figure 4.
Supporting rack is as shown in figure 5, its material selection 316L stainless steels, including large diameter circle, connecting filament, small-diameter circular
Ring, screw.Large diameter circle is tiltedly connect with minor diameter annulus by several connecting filaments, and the sectional dimension of connecting filament and length can be with
According to the occasion reasonable selection of leakage heat request, connection mode is welding.Major diameter metal annulus by screw and outer tube point with being connect
It touches, minor diameter annulus passes through screw and inner tube point contact.Support construction is fixed by screws on the outer surface of inner tube.In order to anti-
The slip of the entirety that only inner tube is formed with support construction in the axial direction, can be in the inner surface of outer tube by setting limit at proximal port
Position block.
The assembling process of novel all-metal vacuum interlayer cryogenic fluid transfer pipeline is as follows：First by large diameter circle, connection
Silk, minor diameter annulus form support construction component by welding, in inner tube outer surface wrapped multiple heat-insulating material, then will
The support construction that group welds is inserted in inner tube, support construction is fixed on the multilayer insulant of inner tube by screw, by spiral shell
Nail is screwed into the large diameter circle of support construction in advance, and finally the inner tube with support construction is inserted in outer tube, forms low temperature stream
Body transmission pipeline.
Certainly, the utility model can also have other various embodiments, without departing substantially from the spirit of the present invention and its essence
In the case of, those skilled in the art work as can make various corresponding changes and modification, but this according to the utility model
A little corresponding changes and modification should all belong to the scope of the claims appended by the utility model.
Claims (9)
1. a kind of vacuum interlayer cryogenic fluid transfer pipeline, including inner tube, outer tube and support construction, said inner tube with it is described outer
It is vacuum interlayer between pipe, which is characterized in that a support construction, the support construction are equipped between said inner tube and the outer tube
Including a large diameter circle, the large diameter circle both sides are respectively equipped with a minor diameter annulus, the large diameter circle and two institutes
It states and is connected by connecting filament between minor diameter annulus；The large diameter circle is equipped with multiple radially adjustable for height
Contact structures, the minor diameter annulus are equipped with multiple adjustable for height contact structures radially inward；Said inner tube is located at
In the minor diameter annulus and by the contact structures on the minor diameter annulus fixation is connect with the minor diameter annulus；
The outer tube connect fixation by the contact structures on the large diameter circle with the large diameter circle.
2. vacuum interlayer cryogenic fluid transfer pipeline as described in claim 1, which is characterized in that wrap up said inner tube outer surface
If dried layer heat-insulating material.
3. vacuum interlayer cryogenic fluid transfer pipeline as claimed in claim 2, which is characterized in that if the dried layer heat-insulating material
Replace for metallized film with fiber interlayer and be formed by stacking.
4. the vacuum interlayer cryogenic fluid transfer pipeline as described in claims 1 or 2 or 3, which is characterized in that the large-diameter circular
On ring, multiple screw holes are respectively equipped on the minor diameter annulus, the screw hole forms the contact structures with matching screw.
5. vacuum interlayer cryogenic fluid transfer pipeline as described in claim 1, which is characterized in that the minor diameter annulus is symmetrical
The both sides for being arranged on the large diameter circle.
6. vacuum interlayer cryogenic fluid transfer pipeline as described in claim 1, which is characterized in that the minor diameter annulus and institute
It is coaxial to state large diameter circle.
7. vacuum interlayer cryogenic fluid transfer pipeline as described in claim 1, which is characterized in that the inner surface of the outer tube leans on
Limited block is provided at proximal port.
8. vacuum interlayer cryogenic fluid transfer pipeline as described in claim 1, which is characterized in that the connecting filament is metal
Item；The large diameter circle is metal ring, and the minor diameter annulus is metal ring.
9. vacuum interlayer cryogenic fluid transfer pipeline as described in claim 1, which is characterized in that said inner tube sets several sections
Bellows；The outer tube sets several sections of bellowss.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721325963.4U CN207471021U (en) | 2017-10-16 | 2017-10-16 | A kind of vacuum interlayer cryogenic fluid transfer pipeline |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721325963.4U CN207471021U (en) | 2017-10-16 | 2017-10-16 | A kind of vacuum interlayer cryogenic fluid transfer pipeline |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207471021U true CN207471021U (en) | 2018-06-08 |
Family
ID=62268022
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721325963.4U Active CN207471021U (en) | 2017-10-16 | 2017-10-16 | A kind of vacuum interlayer cryogenic fluid transfer pipeline |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207471021U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107725972A (en) * | 2017-10-16 | 2018-02-23 | 中国科学院高能物理研究所 | A kind of vacuum interlayer cryogenic fluid transfer pipeline |
| CN111120781A (en) * | 2019-12-30 | 2020-05-08 | 安徽万瑞冷电科技有限公司 | Cold shield structure for low-temperature transmission pipeline |
-
2017
- 2017-10-16 CN CN201721325963.4U patent/CN207471021U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107725972A (en) * | 2017-10-16 | 2018-02-23 | 中国科学院高能物理研究所 | A kind of vacuum interlayer cryogenic fluid transfer pipeline |
| CN111120781A (en) * | 2019-12-30 | 2020-05-08 | 安徽万瑞冷电科技有限公司 | Cold shield structure for low-temperature transmission pipeline |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN204141151U (en) | Pipeline support and cryogenic liquide conveyance conduit | |
| CN207471021U (en) | A kind of vacuum interlayer cryogenic fluid transfer pipeline | |
| US3986341A (en) | Low heat-leak cryogenic envelope | |
| KR20050088933A (en) | Double-walled tank | |
| JPH11125390A (en) | Heat insulating vacuum double pipe | |
| CN103307380A (en) | Low-temperature fluid delivery tube connector with potential isolating function | |
| JP4899808B2 (en) | Curved pipe section of heat insulating multi-pipe for superconducting power transmission | |
| JP2021113614A (en) | Johnston coupling comprising additional vacuum enclosure | |
| CN100482997C (en) | Small vacuum welding connecting structure of multiple-layer vacuum insulation pipe | |
| CN107725972A (en) | A kind of vacuum interlayer cryogenic fluid transfer pipeline | |
| CN214532826U (en) | Double-layer vacuum insulation pipe, sucker rod and oil pumping equipment | |
| CN110131527A (en) | A kind of cryogenic vacuum pipeline | |
| CN103470918B (en) | A kind of uncompensated device vacuum tube for cryogen conveying | |
| CN110285316B (en) | High vacuum multi-layer heat insulation container with inner container having convex object on outer surface | |
| WO2023185011A1 (en) | High-temperature-resistant heat-insulating flexible composite pipe | |
| CN111120781A (en) | Cold shield structure for low-temperature transmission pipeline | |
| CN116164225A (en) | Liquid helium storage tank | |
| CN205001767U (en) | Integration vacuum transmission pipe | |
| CN209278729U (en) | A kind of abrasionproof heat-insulation and heat-preservation hose | |
| CN204592716U (en) | A kind of vacuum tube structure | |
| CN107489858A (en) | The hot On Tranofer Tube For Liquid Helium of low drain | |
| CN210292939U (en) | Low-temperature heat transfer device and low-temperature heat transfer system | |
| CN208951668U (en) | A kind of inner sidewall structure and vertical low temperature container of vertical low temperature container | |
| CN207864901U (en) | A kind of aerial insulating tube of outer shield spiral duct | |
| CN208074414U (en) | Vacuum and low temperature pipe-line system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |