CN106195467A - A kind of simple, monoblock type double-wall pipe - Google Patents
A kind of simple, monoblock type double-wall pipe Download PDFInfo
- Publication number
- CN106195467A CN106195467A CN201610660418.4A CN201610660418A CN106195467A CN 106195467 A CN106195467 A CN 106195467A CN 201610660418 A CN201610660418 A CN 201610660418A CN 106195467 A CN106195467 A CN 106195467A
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- CN
- China
- Prior art keywords
- outer tube
- inner tube
- wall pipe
- tube
- double
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- 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.)
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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
- F16L43/00—Bends; Siphons
- F16L43/001—Bends; Siphons made of metal
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Rigid Pipes And Flexible Pipes (AREA)
Abstract
The invention discloses a kind of simple, monoblock type double-wall pipe, including the straight length interconnected and connector, straight length includes inner tube and outer tube, with fixing band iron in inner tube, with outer tube slot on outer tube, outer tube is placed on outside inner tube, outer tube is overlapping with the inner tube center of circle, fixing band iron welds with outer tube slot, the present invention is easy to use, the Welding Testing work of double-wall pipe pipeline section inner tube can be carried out at any time, shorten the fabrication cycle of double-wall pipe pipeline section part, achieve double-wall pipe at boat segmental or the outfititem synchronous construction such as complete cross section stage and other pipelines, improve the construction environment at scene, reduce construction intensity, thus preferably ensure that construction quality, the butt welding mouth quantity of double-wall pipe inner pipe straight section can be reduced, and then reduce inner tube leakage point quantity and slip, and shorten the fabrication cycle of double-wall pipe, reduce company cost.
Description
Technical field
The present invention relates to a kind of about carrying LNG fuel conduit on the double fuel boats and ships such as main frame, electromotor or ocean platform
Design technology method, more specifically, be a kind of simple, the monoblock type double-walled about LNG fuels and energy ship or ocean platform
Pipe.
Background technology
Liquefied natural gas (being called for short LNG) is a kind of compressible, inflammable liquid, has colorless and odorless, nontoxic, non-corrosiveness
Feature.LNG, as a kind of environmental protection, economy, the novel energy of safety, can effectively reduce the discharge of NOX, SOX, have very
Significantly environmental benefit, it has also become oil, coal, the best substitute of carbon equal energy source.
At present at the boats and ships built, all use double fuel power greatly, and for carrying the confession of LNG fuel in cabin
Air pipe, according to " IGC CODE International Code for the Construction and Equipment of Ships Carrying Liquefied Gases in Bulk " and relevant classification society rule
Requirement, generally: pipeline is double-wall pipe, point inner and outer tubes, inner tube Main Function is conveying LNG fuel, outer tube Main Function
It is as whether second layer protection and detection inner tube leak；Pipeline material is: inner tube Stainless steel 316 L, outer tube stainless steel 304 L or
316L；Inner tube pipeline grade is I level, and pipeline uses butt welding to connect, equal 100% Non-Destructive Testing of each weld seam.Outer tube pipeline grade
For III level, pipeline can be selected for the forms such as butt welding, sleeve pipe or flange and connects.In order to reduce the leakage point of outer tube, except inner tube pair
The position of interface weld seam, the Type of Welding such as butt welding or sleeve pipe is all selected in other position；Once leakage alarm occurs, can be to inner tube
Every one docking port weld seam check, to determine leak position；The selection of inner and outer pipe size, main frame to be met, electromotor
Requirement Deng producer；When inner and outer pipe is aboard ship installed, will there is good fixing.
And the design of existing double-wall pipe, in addition to meeting specification and above-mentioned requirements, to be designed has manufacturability, inspection
The property tested, installation.General double-wall pipe is designed by the producer of specialty, make, delivers for a check, installs.
The producer designing and producing double-wall pipe at present both at home and abroad is few, greatly all in monopoly position.And existing way base
Originally:
1, the layout drawing that moves towards of double-wall pipe is supplied to specialized factory by shipyard, and producer rule of thumb carries out double-wall pipe on layout drawing
Disconnected pipe, inner tube support Design, outer tube observation port design.Then shipyard or shipowner approval are sent out.After shipyard or shipowner approval, then
Carry out the production of double-wall pipe.Therefore double-wall pipe manufacture early stage communication, the preparation such as drawing accreditation will be with for a long time.
2, it is required to the inspection of Han Qianbao classification society, the inspection of welding Hou Bao classification society due to the every one docking port weld seam of inner tube pipeline
Test.The inspection declaration of double-wall pipe inner tube docking port weld seam, in order to reduce cost, the most all can be worked and concentrate on one by general manufacturer
The individual time period.Thus cause the double-wall pipe fabrication cycle of manufacturer can be the longest, and then when causing double-wall pipe to be installed on boats and ships
Between be substantially and carry out after cabin pipeline, cable, equipment and other outfititem complete.Double-wall pipe is now installed, will
Affected by watercraft engine room space so that each section of pipe component of double-wall pipe is relatively short, the on-the-spot weld seam needing welding
Can increase.Which not only adds the inner tube leakage point quantity of double-wall pipe.But also add construction volume and difficulty of construction, finally
Influence whether the overall progress of shipbuilding.
In order to reduce the butt welding mouth quantity of double-wall pipe inner tube, reduce inner tube leakage point to the full extent, realize double-walled simultaneously
Pipe is at boat segmental or the outfititem synchronous construction such as complete cross section stage and other pipelines；In order to reduce project cost, reduce workman's
Labor intensity, breaks trade monopoly, promotes the research and development of shipyard self, makes ability, in conjunction with the self-characteristic of double-wall pipe, invention
A kind of simple, monoblock type double-wall pipe design technology method.
Summary of the invention
It is an object of the invention to provide a kind of simple, monoblock type double-wall pipe.
The technical solution used in the present invention is:
A kind of simple, monoblock type double-wall pipe, including the straight length interconnected and connector, described straight length includes that inner tube is with outer
Pipe, with fixing band iron in said inner tube, with outer tube slot on described outer tube, described outer tube is placed on outside inner tube, described outer tube with
The inner tube center of circle is overlapping, and described fixing band iron welds with outer tube slot.
Described connector is swan neck, and described swan neck includes interior pipe bend and outer pipe bend, said inner tube elbow two ends
With interior sealing of tube or respectively with inner tube and flange welding, with observation port on described outer pipe bend.
Described connector is threeway pipeline section, and described threeway pipeline section includes inner tube threeway and outward appearance threeway, said inner tube threeway
With interior sealing of tube, with observation port in described outer tube threeway.
Described connector is Half formula outer tube, and described Half formula outer tube two ends are fixing with outer tube to be connected, outside described Half formula
Pipe racks has observation port, described observation port to be arranged at the position while welding of inner tube.
Described connector is sleeve pipe, and described sleeve pipe two ends are fixed by socket with outer tube, described sleeve pipe with observation port, described sight
Examine hole and be arranged at the position while welding of inner tube.
Advantages of the present invention: easy to use, can carry out the Welding Testing work of double-wall pipe pipeline section inner tube at any time, shorten double
The fabrication cycle of wall pipe pipeline section part, it is achieved that double-wall pipe is Tong Bu with outfititems such as other pipelines at boat segmental or complete cross section stage
Construction, improves the construction environment at scene, reduces construction intensity, thus preferably ensure that construction quality, can reduce double-walled
The butt welding mouth quantity of pipe inner pipe straight section, and then reduce inner tube leakage point quantity and slip, and shorten the making of double-wall pipe
In the cycle, reduce company cost.
Accompanying drawing explanation
With detailed description of the invention, the present invention is described in further detail below in conjunction with the accompanying drawings.
Fig. 1: the schematic diagram of the inner tube of straight length of the present invention；
Fig. 2: the schematic diagram of the outer tube of straight length of the present invention；
Fig. 3: the schematic diagram of straight length of the present invention；
The monoblock type double-wall pipe part schematic diagram of Fig. 4: band elbow pipeline section of the present invention；
The monoblock type double-wall pipe part schematic diagram of Fig. 5: band threeway pipeline section of the present invention；
Fig. 6: this is sent out monoblock type double-wall pipe part system flanged (FLGD) and is intended to；
Fig. 7: monoblock type double-wall pipe pipeline section part scheme of installation (Half formula outer tube) of the present invention；
Fig. 8: monoblock type double-wall pipe pipeline section part scheme of installation (bushing type outer tube) of the present invention.
Wherein: 1, inner tube；2, fixing band iron；3, outer tube；4, outer tube slot；5, observation port；6, interior pipe bend；7, outer tube is curved
Head；8, inner tube threeway；9, outer tube threeway；10, flange；11, Half formula outer tube；12, sleeve pipe；13, weld seam.
Detailed description of the invention
As shown in figures 1-8, a kind of simple, monoblock type double-wall pipe, including the straight length interconnected and connector, straight length
Including inner tube 1 and outer tube 3, with fixing band iron 2 in inner tube 1, with outer tube slot 4 on outer tube 3, outer tube 3 is placed on outside inner tube 1, outward
Pipe 3 is overlapping with inner tube 1 center of circle, and fixing band iron 2 welds with outer tube slot 4.Connector is swan neck, and swan neck includes interior pipe bend 6
With outer pipe bend 7, interior pipe bend 6 two ends weld with inner tube 1 or weld with inner tube 1 and flange 10 respectively, on outer pipe bend 7 with
Observation port 5；Connector is threeway pipeline section, and threeway pipeline section includes inner tube threeway 8 and outward appearance threeway 9, and inner tube threeway 8 is welded with inner tube 1
Connect, with observation port 5 in outer tube threeway 9；Connector is Half formula outer tube 11, and Half formula outer tube 11 two ends are fixing with outer tube 3 even
Connecing, Half formula outer tube 11 is with observation port 5, and observation port 5 is arranged at weld seam 13 position of inner tube 1；Connector is sleeve pipe 12, sleeve pipe
12 two ends are fixed by socket with outer tube 3, and sleeve pipe 12 is with observation port 5, and observation port 5 is arranged at weld seam 13 position of inner tube.
The present invention is easy to use, can carry out the Welding Testing work of double-wall pipe pipeline section inner tube at any time, shorten double-wall pipe pipe
The fabrication cycle of section part, it is achieved that double-wall pipe at outfititem synchronous constructions such as boat segmental or complete cross section stage and other pipelines,
Improve the construction environment at scene, reduce construction intensity, thus preferably ensure that construction quality, double-wall pipe inner tube can be reduced
The butt welding mouth quantity of straight length, and then reduce inner tube leakage point quantity and slip, and shorten the fabrication cycle of double-wall pipe, fall
Low company cost.
Claims (5)
1. simple, a monoblock type double-wall pipe, it is characterised in that: include straight length and connector, the described straight tube interconnected
Section includes inner tube and outer tube, and with fixing band iron in said inner tube, with outer tube slot on described outer tube, described outer tube is placed on inner tube
Outward, described outer tube is overlapping with the inner tube center of circle, and described fixing band iron welds with outer tube slot.
One the most according to claim 1 is simple, monoblock type double-wall pipe, it is characterised in that: described connector is swan neck,
Described swan neck includes interior pipe bend and outer pipe bend, said inner tube elbow two ends and interior sealing of tube or respectively with inner tube and flange
Welding, with observation port on described outer pipe bend.
One the most according to claim 1 is simple, monoblock type double-wall pipe, it is characterised in that: described connector is tee T
Section, described threeway pipeline section includes inner tube threeway and outward appearance threeway, said inner tube threeway and interior sealing of tube, described outer tube threeway carries
There is observation port.
One the most according to claim 1 is simple, monoblock type double-wall pipe, it is characterised in that: described connector is Half formula
Outer tube, described Half formula outer tube two ends are fixing with outer tube to be connected, and described Half formula outer tube is with observation port, and described observation port is arranged
Position while welding in inner tube.
One the most according to claim 1 is simple, monoblock type double-wall pipe, it is characterised in that: described connector is sleeve pipe, institute
Stating sleeve pipe two ends to be fixed by socket with outer tube, described sleeve pipe is arranged at the position while welding of inner tube with observation port, described observation port.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610660418.4A CN106195467A (en) | 2016-08-12 | 2016-08-12 | A kind of simple, monoblock type double-wall pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610660418.4A CN106195467A (en) | 2016-08-12 | 2016-08-12 | A kind of simple, monoblock type double-wall pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106195467A true CN106195467A (en) | 2016-12-07 |
Family
ID=57515018
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610660418.4A Pending CN106195467A (en) | 2016-08-12 | 2016-08-12 | A kind of simple, monoblock type double-wall pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106195467A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108266289A (en) * | 2017-01-04 | 2018-07-10 | 江南造船(集团)有限责任公司 | High-pressure gas double-wall pipe |
| CN109099252A (en) * | 2018-08-23 | 2018-12-28 | 山西理工红日节能服务有限公司 | Prefabricated thermal insulation dog-ear pipe fitting and preparation method thereof |
| CN109958821A (en) * | 2017-12-26 | 2019-07-02 | 中国船舶重工集团公司第七一一研究所 | Double-walled fuel gas conduit and gas engine with it |
| CN110847980A (en) * | 2019-11-19 | 2020-02-28 | 上海钟音环保设备有限公司 | Pipeline multilayer micro-perforated plate silencer and processing method thereof |
| CN112856229A (en) * | 2020-12-25 | 2021-05-28 | 华润（南京）市政设计有限公司 | Gas is jacket pipe and gas system for pipeline |
| CN113990533A (en) * | 2021-10-22 | 2022-01-28 | 中国原子能科学研究院 | Reactor and coolant conveying structure thereof |
| CN114688352A (en) * | 2022-04-22 | 2022-07-01 | 中国原子能科学研究院 | Pipeline for transporting liquid metal in reactor hall |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204226878U (en) * | 2014-09-23 | 2015-03-25 | 桐乡市远邦传感器有限公司 | A kind of outdoor use plastic pipe |
| KR101536621B1 (en) * | 2014-07-31 | 2015-07-14 | 정우이앤이 주식회사 | Inspection device of fuel gas double pipe for ship |
| KR101538510B1 (en) * | 2014-07-22 | 2015-07-23 | 정우이앤이 주식회사 | Fuel gas double pipe for ship |
| CN105318115A (en) * | 2015-10-14 | 2016-02-10 | 扬州市君睿创智工业设计有限公司 | Low-temperature pipe |
-
2016
- 2016-08-12 CN CN201610660418.4A patent/CN106195467A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101538510B1 (en) * | 2014-07-22 | 2015-07-23 | 정우이앤이 주식회사 | Fuel gas double pipe for ship |
| KR101536621B1 (en) * | 2014-07-31 | 2015-07-14 | 정우이앤이 주식회사 | Inspection device of fuel gas double pipe for ship |
| CN204226878U (en) * | 2014-09-23 | 2015-03-25 | 桐乡市远邦传感器有限公司 | A kind of outdoor use plastic pipe |
| CN105318115A (en) * | 2015-10-14 | 2016-02-10 | 扬州市君睿创智工业设计有限公司 | Low-temperature pipe |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108266289A (en) * | 2017-01-04 | 2018-07-10 | 江南造船(集团)有限责任公司 | High-pressure gas double-wall pipe |
| CN109958821A (en) * | 2017-12-26 | 2019-07-02 | 中国船舶重工集团公司第七一一研究所 | Double-walled fuel gas conduit and gas engine with it |
| CN109099252A (en) * | 2018-08-23 | 2018-12-28 | 山西理工红日节能服务有限公司 | Prefabricated thermal insulation dog-ear pipe fitting and preparation method thereof |
| CN110847980A (en) * | 2019-11-19 | 2020-02-28 | 上海钟音环保设备有限公司 | Pipeline multilayer micro-perforated plate silencer and processing method thereof |
| CN112856229A (en) * | 2020-12-25 | 2021-05-28 | 华润（南京）市政设计有限公司 | Gas is jacket pipe and gas system for pipeline |
| CN112856229B (en) * | 2020-12-25 | 2024-04-09 | 华润（南京）市政设计有限公司 | Jacket pipe for gas pipeline and gas system |
| CN113990533A (en) * | 2021-10-22 | 2022-01-28 | 中国原子能科学研究院 | Reactor and coolant conveying structure thereof |
| CN113990533B (en) * | 2021-10-22 | 2024-05-10 | 中国原子能科学研究院 | Reactor and coolant conveying structure thereof |
| CN114688352A (en) * | 2022-04-22 | 2022-07-01 | 中国原子能科学研究院 | Pipeline for transporting liquid metal in reactor hall |
| CN114688352B (en) * | 2022-04-22 | 2023-09-29 | 中国原子能科学研究院 | Pipeline for conveying liquid metal in reactor hall |
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Legal Events
| Date | Code | Title | Description |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20161207 |