CN108413140A - LNG conveyance conduits - Google Patents
LNG conveyance conduits Download PDFInfo
- Publication number
- CN108413140A CN108413140A CN201810461503.7A CN201810461503A CN108413140A CN 108413140 A CN108413140 A CN 108413140A CN 201810461503 A CN201810461503 A CN 201810461503A CN 108413140 A CN108413140 A CN 108413140A
- Authority
- CN
- China
- Prior art keywords
- inner tube
- outer tube
- male connector
- female
- screw thread
- 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.)
- Pending
Links
Classifications
-
- 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
-
- 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
- F16L15/00—Screw-threaded joints; Forms of screw-threads for such joints
- F16L15/006—Screw-threaded joints; Forms of screw-threads for such joints with straight threads
-
- 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
- F16L15/00—Screw-threaded joints; Forms of screw-threads for such joints
- F16L15/06—Screw-threaded joints; Forms of screw-threads for such joints characterised by the shape of the screw-thread
-
- 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
- F16L59/00—Thermal insulation in general
- F16L59/06—Arrangements using an air layer or vacuum
- F16L59/065—Arrangements using an air layer or vacuum using vacuum
Abstract
The invention discloses a kind of LNG conveyance conduits, including inner and outer tubes, it is cavity between inner and outer tubes, the outer tube is identical with inner tube length, inner tube one end has an inner tube male connector, the other end of inner tube has an inner tube female, inner tube male connector is adapted with said inner tube female, outer tube one end has an outer tube male connector, the other end of outer tube has an outer tube female, outer tube male connector is adapted with the outer tube female, it is provided with the first external screw thread on the outside of inner tube male connector, it is provided with the first internal thread on the inside of inner tube female, it is provided with the second external screw thread on the outside of outer tube male connector, it is provided with the second internal thread on the inside of outer tube female, first external screw thread and the first internal thread adaptation, second external screw thread and the second internal thread are adapted.LNG conveyance conduits of the present invention, using threaded connection, work efficiency is high, can be vacuumized to whole pipeline after the completion of the connection of LNG feed-lines, heat insulation effect is good.
Description
Technical field
The present invention relates to a kind of fluid-transporting tubing parts, especially a kind of LNG conveyance conduits.
Background technology
When using pipeline LNG, external environment has very big influence to fluid temperature in pipeline.External environment master
Heat transfer is carried out to liquid in pipeline by direct heat transfer, heat radiation etc..Vacuum pipe generally uses segmented to make
The scene transported to is assembled again, and generally use is welded to connect or flanged joint.It is the inner tube welding that will be docked using being welded to connect
Afterwards, then at docking it winds heat-preservation cotton to be kept the temperature, which process is more, and time-consuming longer, heat insulation effect is poor；Flanged joint meeting
Cause cold to be easy to be lost in from junction, the cold insulation in junction can be caused ineffective, heat insulation effect is poor.
Invention content
In view of the deficiencies of the prior art, the present invention provides a kind of LNG conveyance conduits to solve of the existing technology ask
Topic.
The present invention uses following technical scheme：
A kind of LNG conveyance conduits, including inner and outer tubes, between said inner tube and outer tube be vacuum chamber, the outer tube and
Inner tube length is identical, and said inner tube one end has an inner tube male connector, and the other end of said inner tube has an inner tube female, described interior
Pipe male connector is adapted with said inner tube female, and there is an outer tube male connector, the other end of the outer tube to have one for described outer tube one end
Outer tube female, the outer tube male connector are adapted with the outer tube female, and the first external screw thread, institute are provided on the outside of said inner tube male connector
It states and is provided with the first internal thread on the inside of inner tube female, the second external screw thread, the outer tube female are provided on the outside of the outer tube male connector
Inside is provided with the second internal thread, and first external screw thread and the first internal thread are adapted to, spiral shell in second external screw thread and second
Line is adapted.
Further, said inner tube outer surface is provided with multiple annular brace pieces to support the outer tube.
Further, the annular brace piece is in netted, and the annular brace piece is made of polyurethane material.
Further, first external screw thread, the first internal thread, the second external screw thread and the second internal thread are that thread form angle is
55 ° of pipe screw thread.
Compared with the prior art, the advantages of the present invention are as follows：
1. the connection type of the inner and outer tubes of a LNG conveyance conduits more than is to be threadedly coupled, and work efficiency is high, and connection is completed
The cavity between inner and outer tubes vacuumizes afterwards, makes whole LNG feed-lines all under vacuum heat-preserving, heat insulation effect
It is good.
2. the support chip made of polyurethane material, thermal coefficient is low, can greatly reduce the cold draining amount of the outer tube of inner tube.
Description of the drawings
In order to illustrate the technical solutions in the embodiments of the present application or in the prior art more clearly, to embodiment or will show below
There is attached drawing needed in technology description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments described in application, for those of ordinary skill in the art, without creative efforts,
Other drawings may also be obtained based on these drawings.
Fig. 1 is the structural schematic diagram of LNG conveyance conduits of the embodiment of the present invention.
Fig. 2 is the structural schematic diagram of support chip in Fig. 1.
Specific implementation mode
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out detailed retouch
It states, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.Based on the present invention
In embodiment, the every other implementation that those of ordinary skill in the art are obtained without making creative work
Example, shall fall within the protection scope of the present invention.
A kind of LNG conveyance conduits, including inner tube 10 and outer tube 20 are vacuum chamber 30 between said inner tube and outer tube, described
Outer tube 20 is identical with 10 length of inner tube, and there is 10 one end of said inner tube an inner tube male connector 11, the other end of said inner tube 10 to have
One inner tube female 12, said inner tube male connector 11 are adapted with said inner tube female 12, and 20 one end of the outer tube has an outer tube public
First 21, there is the other end of the outer tube 20 an outer tube female 22, the outer tube male connector 21 to be adapted with the outer tube female 22,
11 outside of said inner tube male connector is provided with the first external screw thread 13, and 12 inside of said inner tube female is provided with the first internal thread 14, institute
It states 21 outside of outer tube male connector and is provided with the second external screw thread 23,22 inside of the outer tube female is provided with the second internal thread 24, described
First external screw thread 13 and the first internal thread 14 adaptation, second external screw thread, 23 and second internal thread 24 are adapted.
Preferably, 10 outer surface of said inner tube is provided with multiple annular brace pieces 40 to support the outer tube 20, the ring
Shape support chip 40 is in netted, and the annular brace piece 40 is made of polyurethane material.
Preferably, first external screw thread 13, the first internal thread 14, the second external screw thread 23 and the second internal thread 24 are tooth
The pipe screw thread that type angle is 55 °.
More LNG conveyance conduits of the embodiment can be attached by screw thread, and connection preceding thread surface can smear
The sealing materials such as fluid sealant vacuumize whole pipeline after completing connection, LNG are made to be in always in pipe conveying procedure
Under vacuum heat-preserving, heat insulation effect is good, greatly reduces the cold draining amount of feed-line.
It should be noted that herein, relational terms such as first and second and the like are used merely to a reality
Body or operation are distinguished with another entity or operation, are deposited without necessarily requiring or implying between these entities or operation
In any actual relationship or order or sequence.Moreover, the terms "include", "comprise" or its any other variant are intended to
Non-exclusive inclusion, so that the process, method, article or equipment including a series of elements is not only wanted including those
Element, but also include other elements that are not explicitly listed, or further include for this process, method, article or equipment
Intrinsic element.In the absence of more restrictions, the element limited by sentence "including a ...", it is not excluded that
There is also other identical elements in process, method, article or equipment including above-mentioned element.
Claims (4)
1. a kind of LNG conveyance conduits, it is characterised in that：It is cavity including inner and outer tubes, between said inner tube and outer tube, it is described
Outer tube is identical with inner tube length, and there is an inner tube male connector, the other end of said inner tube to have an inner tube female for said inner tube one end,
Said inner tube male connector is adapted with said inner tube female, and described outer tube one end has an outer tube male connector, the other end of the outer tube
With an outer tube female, the outer tube male connector is adapted with the outer tube female, is provided with outside first on the outside of said inner tube male connector
Screw thread, said inner tube female inside are provided with the first internal thread, and the second external screw thread is provided on the outside of the outer tube male connector, described outer
It is provided with the second internal thread, first external screw thread and the first internal thread adaptation on the inside of pipe female, second external screw thread and the
Two internal threads are adapted.
2. according to LNG conveyance conduits described in claim 1, it is characterised in that：Said inner tube outer surface is provided with multiple annular branch
Blade is to support the outer tube.
3. according to the LNG conveyance conduits described in claim 2, it is characterised in that：The annular brace piece is in netted, the annular branch
Blade is made of polyurethane material.
4. according to LNG conveyance conduits described in claim 1, it is characterised in that：First external screw thread, the first internal thread, second
External screw thread and the second internal thread are the pipe screw thread that thread form angle is 55 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810461503.7A CN108413140A (en) | 2018-05-15 | 2018-05-15 | LNG conveyance conduits |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810461503.7A CN108413140A (en) | 2018-05-15 | 2018-05-15 | LNG conveyance conduits |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108413140A true CN108413140A (en) | 2018-08-17 |
Family
ID=63139356
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810461503.7A Pending CN108413140A (en) | 2018-05-15 | 2018-05-15 | LNG conveyance conduits |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108413140A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2324360Y (en) * | 1998-05-17 | 1999-06-16 | 鲁国庆 | Insulation vacuum tube |
| CN201835758U (en) * | 2010-10-18 | 2011-05-18 | 中国地质科学院勘探技术研究所 | Aluminum-alloy double-wall drill pipe for reverse circulation drilling |
| CN104373759A (en) * | 2014-11-04 | 2015-02-25 | 王文杰 | Long-distance vacuum insulation conveying pipeline |
| CN205118574U (en) * | 2015-11-11 | 2016-03-30 | 吉林杰瑞石油装备科技有限公司 | A insulating tube for geothermal well |
| CN208204234U (en) * | 2018-05-15 | 2018-12-07 | 张家港艾普能源装备有限公司 | LNG conveyance conduit |
-
2018
- 2018-05-15 CN CN201810461503.7A patent/CN108413140A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2324360Y (en) * | 1998-05-17 | 1999-06-16 | 鲁国庆 | Insulation vacuum tube |
| CN201835758U (en) * | 2010-10-18 | 2011-05-18 | 中国地质科学院勘探技术研究所 | Aluminum-alloy double-wall drill pipe for reverse circulation drilling |
| CN104373759A (en) * | 2014-11-04 | 2015-02-25 | 王文杰 | Long-distance vacuum insulation conveying pipeline |
| CN205118574U (en) * | 2015-11-11 | 2016-03-30 | 吉林杰瑞石油装备科技有限公司 | A insulating tube for geothermal well |
| CN208204234U (en) * | 2018-05-15 | 2018-12-07 | 张家港艾普能源装备有限公司 | LNG conveyance conduit |
Non-Patent Citations (1)
| Title |
|---|
| 孔萍，刘青山: "《塑料材料》", 广东高等教育出版社, pages: 162 - 167 * |
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