CN109458500A - Continuous vacuum is insulated double-wall pipe - Google Patents
Continuous vacuum is insulated double-wall pipe Download PDFInfo
- Publication number
- CN109458500A CN109458500A CN201811398542.3A CN201811398542A CN109458500A CN 109458500 A CN109458500 A CN 109458500A CN 201811398542 A CN201811398542 A CN 201811398542A CN 109458500 A CN109458500 A CN 109458500A
- Authority
- CN
- China
- Prior art keywords
- outer tube
- wall pipe
- inner tube
- tube
- continuous vacuum
- 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
- 238000009413 insulation Methods 0.000 claims abstract description 30
- 238000005422 blasting Methods 0.000 claims description 5
- 229920001971 elastomer Polymers 0.000 claims description 5
- 239000000806 elastomer Substances 0.000 claims description 5
- 238000005086 pumping Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 3
- 238000012544 monitoring process Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012946 outsourcing Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 239000012774 insulation material Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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
- F16L27/00—Adjustable joints, Joints allowing movement
- F16L27/08—Adjustable joints, Joints allowing movement allowing adjustment or movement only about the axis of one pipe
- F16L27/0804—Adjustable joints, Joints allowing movement allowing adjustment or movement only about the axis of one pipe the fluid passing axially from one joint element to another
-
- 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
- F16L55/00—Devices or appurtenances for use in, or in connection with, pipes or pipe systems
- F16L55/005—Devices restraining ruptured tubes from whipping
-
- 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
- F16L57/00—Protection of pipes or objects of similar shape against external or internal damage or wear
-
- 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
-
- 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
- F16L59/14—Arrangements for the insulation of pipes or pipe systems
- F16L59/16—Arrangements specially adapted to local requirements at flanges, junctions, valves or the like
- F16L59/166—Arrangements specially adapted to local requirements at flanges, junctions, valves or the like covering the end of an insulated section
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17D—PIPE-LINE SYSTEMS; PIPE-LINES
- F17D5/00—Protection or supervision of installations
- F17D5/02—Preventing, monitoring, or locating loss
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Thermal Insulation (AREA)
Abstract
The invention discloses a kind of continuous vacuums to be insulated double-wall pipe, including several segments inner tube and several segments outer tube, the outer tube sleeve is on the outside of inner tube, it is welded between the two neighboring inner tube, Huff pipe is welded between the two neighboring outer tube, several groups insulation sliding support and the fixed support of several groups insulation are provided between said inner tube and outer tube, the present invention uses double-wall pipe, and double-wall pipe is in continuity, cavity i.e. between inner tube and outer tube is continuous, reduce heat loss caused by inner tube is contacted with outer tube, it opposite can be slided between inner tube and outer tube simultaneously, prolong the service life.
Description
Technical field
The invention belongs to double-wall pipe field, more specifically to a kind of continuous vacuum is insulated double-wall pipe.
Background technique
There are ultralow temperature pipeline in the storage of ship LNG host fuel and feed system (design temperature is -165 DEG C).Mesh
The preceding pipeline for the temperature grade, is all made of stainless steel tube outsourcing heat preservation insulating materials to carry out the conveying of cryogenic media, this
There are problems for method, such as are difficult to detect to the leakage of pipeline；There are the manifold volumes of outsourcing insulation excessively to expand, and is easy old
Change, damage.
Some also uses double-wall pipe on ship, and using is that multistage double-wall pipe is mutually spliced by flange
At, but when working on ship, it is in Long-term Vibration and moving condition, flange connections are easily displaced and are broken, while double
Wall pipe internal-external temperature difference is larger, causes stroke inside and outside double-wall pipe different, has movement poor in the axial direction, furthermore the junction of flange
It connects inner and outer tubes here, is unable to reach insulation effect, thermal insulation property is poor.
Summary of the invention
In view of the deficiencies of the prior art, double-wall pipe is used the present invention provides a kind of, and double-wall pipe is in continuity, i.e. inner tube
Cavity between outer tube is continuous, heat loss caused by reduction inner tube is contacted with outer tube, while can between inner tube and outer tube
Opposite sliding, the continuous vacuum insulation double-wall pipe to prolong the service life.
To achieve the above object, the present invention provides the following technical scheme that a kind of continuous vacuum is insulated double-wall pipe, including
Several segments inner tube and several segments outer tube, the outer tube sleeve is welded between the two neighboring inner tube on the outside of inner tube, described adjacent
It is welded with Huff pipe between two outer tubes, several groups insulation sliding support is provided between said inner tube and outer tube and several groups are exhausted
Heat fixation support.
There are three insulation sliding support described in every group further and the fixed support of insulation are at least circumferentially evenly arranged.
The further insulation sliding support includes support base and sliding block, and the support base is fixed on the outside of inner tube, institute
It states sliding block to be fixed on support base, the sliding block is slidably connected with outer tube.
Elastomer is provided between the further sliding block and support base.
The further fixed support of the insulation includes the supporter for being fixedly connected with inner and outer tubes.
Crossing cabin part is provided on the outside of the further outer tube.
Vacuumizing joint, pressure detecting connector and safety blasting piece are provided on the further outer tube.
Compared with prior art, the beneficial effects of the present invention are: using double-wall pipe (i.e. double-deck pipeline) to cryogenic media
Shi Jinhang is conveyed, and the cavity between whole double-wall pipe all the way is vacuumized as a whole, thoroughly avoids uncontrollable leakage,
It avoids inner tube from directly contacting with outer tube, is more easier to be monitored in real time when avoiding the aged deterioration of thermal insulation material, and monitoring, together
When inner tube between outer tube insulation sliding support can make to have at a distance from relative movement between inner tube and outer tube, to solve to vibrate
It is poor with temperature difference bring inner and outer tubes relative movement distance, while being insulated fixed support and to can be avoided inner tube opposite with outer tube
Moving distance is excessive to be caused to be in contact in elbow inner tube with outer tube.
Detailed description of the invention
Fig. 1 is the structural schematic diagram that continuous vacuum of the present invention is insulated double-wall pipe；
Fig. 2 is the insulation sliding supporting structure schematic diagram in the present invention between inner tube and outer tube；
Fig. 3 is the insulation fixed support structure schematic diagram in the present invention between inner tube and outer tube.
Appended drawing reference: 1, inner tube；2, outer tube；3, elbow；4, vacuumizing joint；5, pressure detecting connector；6, safety blasting
Piece；7, insulation sliding support；71, support base；72, spring；73, cover；74, sliding block；8, the fixed support of insulation；82, heat guard；
83, fixed block；9, Huff pipe；10, crossing cabin part.
Specific embodiment
It is described further referring to figs. 1 to embodiment of the Fig. 3 to continuous vacuum of the present invention insulation double-wall pipe.
A kind of continuous vacuum is insulated double-wall pipe, including several segments inner tube 1 and several segments outer tube 2, including 2 sets of the outer tube
On the outside of pipe 1, is welded between the two neighboring inner tube 1, be welded with Huff pipe 9, said inner tube between the two neighboring outer tube 2
Several groups insulation sliding support 7 and the fixed support 8 of several groups insulation are provided between 1 and outer tube 2.
As shown in Figure 1, double-wall pipe includes the weldering at elbow 3 and at straight line, while to guarantee inner tube 1 in actual installation
It connects smoothly, certain space is reserved between adjacent two outer tube 2, after the completion of the welding of inner tube 1, welded two outer tubes 2 using Huff pipe 9
Together, integral installation difficulty is reduced, integrally saves and is attached using flange, avoid inner tube 1 and outer tube 2 direct in flange
Heat loss caused by contacting, while the vacuum cavity that internal shape is integral, the double-wall pipe of vacuum state can be in inner tube 1
Medium plays good heat insulation effect, while being convenient for subsequent real time monitoring；Secondly in shipping work, ship vibrates, interior
Pipe 1 and outer tube 2 have the trend of relative movement, and insulation sliding support 7 can make inner tube 1 carry out certain phase with outer tube 2 at this time
To sliding, while also adapting to the relative displacement that inner and outer pipes 2 generate due to there are different temperature expansion/shrinkages；And it is insulated
Fixed support 8 can limit the sliding distance between inner tube 1 and outer tube 2, and inner tube 1 and outer tube 2 at elbow 3 is avoided to occur directly
Contact.
Preferred insulation sliding support 7 described in every group and the fixed support 8 of the insulation at least circumferentially uniform cloth of the present embodiment
There are three setting, as shown in Figures 2 and 3, four are distributed in the present embodiment in a circumferential direction.
The preferred insulation sliding support 7 of the present embodiment includes support base 71 and sliding block 74, and wherein sliding block 74 is using exhausted
Hot material is made, and the support base 71 is fixed on 1 outside of inner tube, and the sliding block 74 is fixed on support base 71, the sliding block 74
It is slidably connected with outer tube 2, is provided with elastomer between the preferred sliding block 74 and support base 71, elastomer can absorb inner tube
1 with the vibration of outer tube 2, while and maintain a certain distance inner tube 1 and outer tube 2, elastomer can be used as shown in Figure 2
Spring 72, preferably between sliding block 74 and spring 72 be arranged cover 73, cover 73 covers on spring 72, and partially protrudes into
In support base 71, it can be avoided spring 72 and radial inclination occur, while facilitating the fixation of sliding block 74.
The preferred fixed support 8 of insulation of the present embodiment includes the supporter for being fixedly connected with inner tube 1 and outer tube 2, such as Fig. 3
It is shown, also include the support base 71 being fixed in inner tube 1, heat guard 82 be set in support base 71, heat guard 82 and outer tube 2 it
Between fixed block 83 is set, fixed block 83 is fixedly welded on outer tube 2.
The present embodiment is preferably provided with crossing cabin part 10 on the outside of the outer tube 2, guarantees that the safety of crossing cabin position double-wall pipe can
It leans on.
The present embodiment is preferably provided with vacuumizing joint 4, pressure detecting connector 5 and safety blasting piece on the outer tube 2
6, pressure detecting connector 5 can detect the leakage of inner tube 1 in time, and safety blasting piece 6 carries out necessity to the leakage of cryogenic media
Protection, in conjunction with a generally vacuum cavity so that whole be easier to carry out monitoring and protect, save cost and convenient for into
Row control.
The above is only a preferred embodiment of the present invention, protection scope of the present invention is not limited merely to above-mentioned implementation
Example, all technical solutions belonged under thinking of the present invention all belong to the scope of protection of the present invention.It should be pointed out that for the art
Those of ordinary skill for, several improvements and modifications without departing from the principles of the present invention, these improvements and modifications
It should be regarded as protection scope of the present invention.
Claims (7)
1. a kind of continuous vacuum is insulated double-wall pipe, it is characterised in that: including several segments inner tube and several segments outer tube, the outer tube
It covers on the outside of inner tube, is welded between the two neighboring inner tube, Huff pipe is welded between the two neighboring outer tube, it is described interior
Several groups insulation sliding support and the fixed support of several groups insulation are provided between pipe and outer tube.
2. continuous vacuum according to claim 1 is insulated double-wall pipe, it is characterised in that: be insulated sliding support described in every group
It is supported with insulation fixation there are three being at least circumferentially evenly arranged.
3. continuous vacuum according to claim 2 is insulated double-wall pipe, it is characterised in that: the insulation, which slidably supports, includes
Support base and sliding block, the support base are fixed on the outside of inner tube, and the sliding block is fixed on support base, the sliding block and outer sliding tube
Dynamic connection.
4. continuous vacuum according to claim 3 is insulated double-wall pipe, it is characterised in that: between the sliding block and support base
It is provided with elastomer.
5. continuous vacuum according to claim 4 is insulated double-wall pipe, it is characterised in that: the insulation fixes support and includes
It is fixedly connected with the supporter of inner and outer tubes.
6. continuous vacuum according to claim 5 is insulated double-wall pipe, it is characterised in that: be provided with and wear on the outside of the outer tube
Cabin part.
7. continuous vacuum according to claim 5 is insulated double-wall pipe, it is characterised in that: it is true to be provided with pumping on the outer tube
Empty connector, pressure detecting connector and safety blasting piece.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811398542.3A CN109458500A (en) | 2018-11-22 | 2018-11-22 | Continuous vacuum is insulated double-wall pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811398542.3A CN109458500A (en) | 2018-11-22 | 2018-11-22 | Continuous vacuum is insulated double-wall pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109458500A true CN109458500A (en) | 2019-03-12 |
Family
ID=65611224
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811398542.3A Pending CN109458500A (en) | 2018-11-22 | 2018-11-22 | Continuous vacuum is insulated double-wall pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109458500A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110375121A (en) * | 2019-07-15 | 2019-10-25 | 亚达管道系统股份有限公司 | Inflatable positive pressure inerting combustion gas double-wall pipe |
| CN111022804A (en) * | 2019-12-26 | 2020-04-17 | 中国科学院长春光学精密机械与物理研究所 | Low vacuum protection and monitoring device for cooling circulation system in X-ray vacuum equipment |
| CN114962831A (en) * | 2022-06-29 | 2022-08-30 | 安庆中船柴油机有限公司 | Leakage inspection device of marine dual-fuel main engine fuel gas inner pipe |
| CN115560248A (en) * | 2022-12-08 | 2023-01-03 | 招商局金陵船舶(威海)有限公司 | Marine liquefied natural gas filling channel connecting structure and connecting method |
| CN117020590A (en) * | 2023-10-08 | 2023-11-10 | 核工业西南物理研究院 | Manufacturing method of special pipe with interlayer |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1369663A (en) * | 2001-02-15 | 2002-09-18 | 齐克先 | Composite vacm insulating pipeline and method for monitoring leakage |
| CN102352940A (en) * | 2011-09-28 | 2012-02-15 | 杭州杭氧低温液化设备有限公司 | Vacuum heat insulating low-temperature pipe joint |
| CN105546232A (en) * | 2016-02-01 | 2016-05-04 | 中航鼎衡造船有限公司 | Double-wall pipe for dual-fuel propelling ship |
| CN205278598U (en) * | 2016-01-21 | 2016-06-01 | 亚达管道系统股份有限公司 | Marine gas double -wall pipe bearing structure |
| CN206555635U (en) * | 2017-02-10 | 2017-10-13 | 鲁西新能源装备集团有限公司 | A kind of Cryo Heat Insulation vacuum tube |
| CN207334001U (en) * | 2017-10-31 | 2018-05-08 | 国鸿液化气机械工程（大连）有限公司 | A kind of gas supply double-wall pipe peculiar to vessel |
| CN207893322U (en) * | 2018-03-01 | 2018-09-21 | 新疆维泰热力股份有限公司 | A kind of heat insualtion structure for heat power pipe net |
-
2018
- 2018-11-22 CN CN201811398542.3A patent/CN109458500A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1369663A (en) * | 2001-02-15 | 2002-09-18 | 齐克先 | Composite vacm insulating pipeline and method for monitoring leakage |
| CN102352940A (en) * | 2011-09-28 | 2012-02-15 | 杭州杭氧低温液化设备有限公司 | Vacuum heat insulating low-temperature pipe joint |
| CN205278598U (en) * | 2016-01-21 | 2016-06-01 | 亚达管道系统股份有限公司 | Marine gas double -wall pipe bearing structure |
| CN105546232A (en) * | 2016-02-01 | 2016-05-04 | 中航鼎衡造船有限公司 | Double-wall pipe for dual-fuel propelling ship |
| CN206555635U (en) * | 2017-02-10 | 2017-10-13 | 鲁西新能源装备集团有限公司 | A kind of Cryo Heat Insulation vacuum tube |
| CN207334001U (en) * | 2017-10-31 | 2018-05-08 | 国鸿液化气机械工程（大连）有限公司 | A kind of gas supply double-wall pipe peculiar to vessel |
| CN207893322U (en) * | 2018-03-01 | 2018-09-21 | 新疆维泰热力股份有限公司 | A kind of heat insualtion structure for heat power pipe net |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110375121A (en) * | 2019-07-15 | 2019-10-25 | 亚达管道系统股份有限公司 | Inflatable positive pressure inerting combustion gas double-wall pipe |
| CN111022804A (en) * | 2019-12-26 | 2020-04-17 | 中国科学院长春光学精密机械与物理研究所 | Low vacuum protection and monitoring device for cooling circulation system in X-ray vacuum equipment |
| CN111022804B (en) * | 2019-12-26 | 2021-04-20 | 中国科学院长春光学精密机械与物理研究所 | Low vacuum protection and monitoring device for cooling circulation system in X-ray vacuum equipment |
| CN114962831A (en) * | 2022-06-29 | 2022-08-30 | 安庆中船柴油机有限公司 | Leakage inspection device of marine dual-fuel main engine fuel gas inner pipe |
| CN114962831B (en) * | 2022-06-29 | 2023-07-28 | 安庆中船柴油机有限公司 | Leakage checking device for fuel gas inner pipe of marine dual-fuel host |
| CN115560248A (en) * | 2022-12-08 | 2023-01-03 | 招商局金陵船舶(威海)有限公司 | Marine liquefied natural gas filling channel connecting structure and connecting method |
| CN117020590A (en) * | 2023-10-08 | 2023-11-10 | 核工业西南物理研究院 | Manufacturing method of special pipe with interlayer |
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| CB02 | Change of applicant information |
Country or region after: China Address after: No. 525 Xinda Road, Xinfeng Town, Nanhu District, Jiaxing City, Zhejiang Province, 314005 Applicant after: Zhejiang Yada Green Energy Technology Co.,Ltd. Address before: 314000 Xinfeng Industrial Zone, Nanhu District, Jiaxing City, Zhejiang Province Applicant before: YADA PIPELINE SYSTEM Co.,Ltd. Country or region before: China |
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| CB02 | Change of applicant information |