CN1010120B - The improvement joint that connects two coaxial tubes - Google Patents
The improvement joint that connects two coaxial tubesInfo
- Publication number
- CN1010120B CN1010120B CN87104323A CN87104323A CN1010120B CN 1010120 B CN1010120 B CN 1010120B CN 87104323 A CN87104323 A CN 87104323A CN 87104323 A CN87104323 A CN 87104323A CN 1010120 B CN1010120 B CN 1010120B
- Authority
- CN
- China
- Prior art keywords
- joint
- ring
- coaxial tubes
- screw thread
- cylinder ring
- 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.)
- Expired
Links
Images
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
- 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
- F16L59/18—Arrangements specially adapted to local requirements at flanges, junctions, valves or the like adapted for joints
- F16L59/20—Arrangements specially adapted to local requirements at flanges, junctions, valves or the like adapted for joints for non-disconnectable joints
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Butt Welding And Welding Of Specific Article (AREA)
- Mutual Connection Of Rods And Tubes (AREA)
- Thermal Insulation (AREA)
- Non-Disconnectible Joints And Screw-Threaded Joints (AREA)
- Insulated Conductors (AREA)
Abstract
A kind of joint of connection two coaxial tubes, be suitable for constituting by two with the interconnective different parts of screw thread, wherein one comprises that one has the inner cylinder ring of screw thread on its outer surface, this ring must with the inner tube portion jam weld of two coaxial tubes, another parts of joint comprise the outer cylinder ring with the outer tube jam weld of two coaxial tubes, and this ring has with the cylinder ring of the screw thread of the screw-thread fit of the inner cylinder ring that constitutes first of joint by frustum of a cone ring in the middle of one and another its internal surface and radially links to each other.
Description
The invention relates to a kind of new-type joint.It can effectively and promptly connect the end of two coaxial tubes, has both made them have less diameter.Therefore, it is specially adapted to lay the heat insulation double-skin duct with 10 inches or littler internal diameter.
The present invention is the improvement to the Chinese patent application of submitting on May 16th, 1985 (No. 85103745) basically.
In above-mentioned patent application, the structure of heat-insulating pipeline is open, this pipeline constitutes by mutual butt welding prefabricated tube section, each pipeline section is made up of by the coaxial tubes that has the circle tube joint that roughly is the vertical busbar cross-section of level " Y " fork-shaped and connect together two ends, wherein, outer shroud is welded to have on the larger-diameter pipe, and it radially links to each other by the inner cylinder ring of taper butt central ring with the inner tube portion that is welded to same pipe.
This method not only makes the field welding time of the different pipe sections of conventional pipelines remain in the scope of identical permission, also makes pipeline not produce the requirement that saltation zone also can satisfy higher thermal insulation.In fact, " Y " type joint of this special use constitutes a recess that is in the pipeline outside between to the pipeline section that welds adjacent, after identical pipeline section is welded, easily thermal-protective material is put into this recess, forms continuous, intact thermal insulation on whole pipe.
Yet, with regard to the outer shroud of " Y " type joint and interior ring respectively with the big-inch pipe of pipeline section and the method for interior pipe butt welding, obviously, this method could adopt when only managing during weld, promptly diameter of inner pipe greatly to permission weld and connection device when entering.
Hence one can see that, at heat-insulating pipeline by two coaxial minor diameter pipes, wherein diameter of inner pipe is 10 inches or less than under 10 inches the situation, should " Y " type joint can not use, because the work that pipeline and minor diameter pipe is welded on the interior ring of " Y " type joint becomes very complicated and heavy.If this point does not accomplish that all advantages of this joint have just all been lost in the above-mentioned application.
Purpose of the present invention will avoid above-mentioned defective to produce just, thereby it provides a kind of improved circle tube joint, and it has roughly the vertical busbar cross-section of level that is " Y " forked type, the end that can simply and promptly connect two coaxial tubes of heat-insulating pipeline had both made to have very little internal diameter.
This purpose is to utilize the joint of two parts formations that are threaded togather to realize by adopting.
Especially, the cylinder type joint that connects the end of two coaxial tubes has roughly and is that " the vertical busbar cross-section of level of " Y " fork-shaped is characterized in that this joint is made of two different parts that connect together by screw thread.One parts are made of the first inner cylinder ring with coaxial tubes inner tube portion butt welding, on the outer surface of this first interior ring screw thread is arranged, being suitable for matching thread on the internal surface with second cylinder ring of second parts of joint twists and closes, this second ring is connected by the 3rd outer cylinder ring of middle frustoconical ring with second parts of joint, the 3rd encircle must with the outer tube butt welding of above-mentioned two coaxial tubes.
Like this, after Guan Shangzai tightened second parts of joint and first parts with screw thread in first parts of two jointings are butt welded to the inner tube portion of two coaxial tubes and outer tube is set to, the outer shroud of joint just was easy to be butt welded to the respective end of the outer tube of two coaxial tubes.
In addition, this additional advantage in addition that is threaded, promptly pipe can apply prestressing force by tightening simply at assembling stage, because the screw thread at the pipe two ends is opposite, so, might reduce the stress in the using process.
According to a kind of shape that changes of the present invention, being provided with the joint component that the first inner cylinder ring of screw thread constitutes by the inner tube portion that is butt welded to two coaxial tubes and its outer surface has been cancelled, its function is finished by inner tube portion, that is, on the outer surface of its end, be provided with and the stubborn screw thread that closes of joint second parts.
The present invention is by obtaining clearer understanding with reference to the accompanying drawings, accompanying drawing has shown the preferred embodiment of the invention, the example that only is used as the object of the invention that provides does not limit this purpose, and technology that can adopt and structural variation always belong within the scope of the invention.
In the accompanying drawings, Fig. 1 is the partial longitudinal section figure of the pipeline that adopts joint of the present invention and be made of pipeline section:
Fig. 2 is the three-dimensional partial view of section of the amplification of the pipe that dissects along A-A line among Fig. 1;
Fig. 3 is the local longitudinal sectional drawing of Fig. 2 middle joint;
The stereogram that Fig. 4 dissects for a kind of part that changes the pipeline of shape formation that adopts joint of the present invention;
Fig. 5 is the local longitdinal cross-section diagram of Fig. 4 middle joint.
Referring to accompanying drawing, wherein 1i represents prefabricated tube section, and pipeline section must connect by weld seam 13 is correct mutually, constituting heat-insulating pipeline, in Fig. 1 can only to 3 sections, promptly 1
1, 1
2And 1i.
Each pipeline section 1i is made of two coaxial tubes 2i and 3i, and pipe 2i has the diameter of the pipeline of formation in it.Coaxial tube 2i is interconnected by two identical circle tube joint 4i at its two ends with 3i, and joint is connected with pipe is correct with 6i by weld seam 5i.
This special joint 4i has roughly the vertical busbar cross-section of level that is " Y " fork-shaped, it is twisted the parts that close by two energy mutually with screw thread and forms (seeing Fig. 2 and Fig. 3), wherein one is made of inner cylinder ring 7i, and it is connected the end of the interior pipe 2i of pipeline section 1i by weld seam 5i enemy.
Has screw thread 8 on the outer surface of this ring 7i
1(see figure 3); Be suitable for another part that constitutes joint 4i on matching thread 9
1Twist and close.
Second of joint 4i is made of outer cylinder ring 10i, and it is connected with the end of the outer tube 3i of pipeline section 1i is correct by weld seam 6i, and this ring radially connects by frustum of a cone ring 11i and relative its other end of cylinder ring 12i, and its internal surface has screw thread 9
1
According to a kind of remodeling of the present invention, adopted another kind of joint 4i(to see Fig. 4 and Fig. 5), the difference of it and above-mentioned joint 4i only is to have cancelled internal thread cylinder ring 7i, and its function is by having matching thread 8 on the end outer surface
1The interior pipe 2i of pipeline section finish.
Claims (3)
1, a kind of circle tube joint of connection two coaxial tubes, it has roughly the vertical busbar cross-section of level that is " Y " fork-shaped, it is characterized in that it is made of two different parts that connect together by screw thread, wherein one is made of the first inner cylinder ring with the inner tube portion butt welding of above-mentioned two coaxial tubes, the matching thread that has on outer surface of this ring in first on second the second cylinder ring internal surface that is suitable for joint is twisted the screw thread that closes mutually, this second ring radially is connected with the 3rd outer cylinder ring of second of joint by frustum of a cone ring in the middle of, the 3rd encircle must with the respective end jam weld of the outer tube of two coaxial tubes.
2, according to the circle tube joint of claim 1, be characterised in that it only is made of above-mentioned second parts, the matching thread on the inner tube portion outer surface of its screw thread and above-mentioned coaxial tubes is twisted and is closed.
3,, it is characterized in that it is used to lay the heat insulation small diameter pipeline described in the present invention according to the circle tube joint of claim 1.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| IT20864A/86 | 1986-06-20 | ||
| IT20864/86A IT1204399B (en) | 1986-06-20 | 1986-06-20 | PERFECTED JOINT FOR THE CONNECTION OF THE ENDS OF TWO CONCENTRIC TUBES, PARTICULARLY SUITABLE FOR THE PRODUCTION OF THERMALLY INSULATED DUCTS OF SMALL DIAMETER |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN87104323A CN87104323A (en) | 1987-12-30 |
| CN1010120B true CN1010120B (en) | 1990-10-24 |
Family
ID=11173229
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN87104323A Expired CN1010120B (en) | 1986-06-20 | 1987-06-20 | The improvement joint that connects two coaxial tubes |
Country Status (7)
| Country | Link |
|---|---|
| JP (1) | JPS631887A (en) |
| CN (1) | CN1010120B (en) |
| GB (1) | GB2191842A (en) |
| IT (1) | IT1204399B (en) |
| NO (1) | NO872550L (en) |
| SE (1) | SE8702466L (en) |
| SU (1) | SU1560066A3 (en) |
Families Citing this family (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2673264B1 (en) * | 1991-02-26 | 1994-03-11 | Marchel Philippe | PIPELINE FOR THE TRANSPORT OF FLUIDS, PARTICULARLY HYDROCARBONS. |
| JPH04119016U (en) * | 1991-04-05 | 1992-10-23 | 積水樹脂株式会社 | Store front equipment |
| JPH04119015U (en) * | 1991-04-05 | 1992-10-23 | 積水樹脂株式会社 | Store front equipment |
| GB9912451D0 (en) | 1999-05-27 | 1999-07-28 | Saipem Spa | Insulated pipe structure and methods of making such structures |
| FR2873427B1 (en) | 2004-07-23 | 2008-04-18 | Saipem S A Sa | JOINT PART OF COAXIAL CONDUIT ELEMENTS AND METHOD OF ASSEMBLING COAXIAL CONDUITS |
| FR2888327B1 (en) | 2005-07-05 | 2008-07-04 | Saipem S A Sa | METHOD AND DEVICE FOR CONTROLLING ULTRASOUND PROBE CONNECTION WELDING CONNECTION |
| GB0803664D0 (en) * | 2008-02-28 | 2008-04-09 | Acergy France Sa | Insulated pipelines and methods of construction and installation thereof |
| FR2948165A1 (en) | 2009-07-17 | 2011-01-21 | Saipem Sa | COAXIAL PIPE ASSEMBLY COMPRISING INTERNAL CAVITY JUNCTION PARTS AND METHOD OF MAKING SAME |
| GB2498740B (en) | 2012-01-25 | 2014-09-10 | Subsea 7 Ltd | Connections for subsea pipe-in-pipe structures |
| GB2545786B (en) * | 2016-10-27 | 2018-06-06 | Statoil Petroleum As | Reelable pipe |
| CN111779987B (en) * | 2020-06-28 | 2022-07-12 | 潍坊新力蒙水产技术有限公司 | Liquid injection type display conveying pipe |
| CN113232026A (en) * | 2021-06-11 | 2021-08-10 | 温德旭 | Mechanical arm for hose connection |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3794358A (en) * | 1970-10-02 | 1974-02-26 | Atlantic Richfield Co | Well production |
| US4415184A (en) * | 1981-04-27 | 1983-11-15 | General Electric Company | High temperature insulated casing |
-
1986
- 1986-06-20 IT IT20864/86A patent/IT1204399B/en active
-
1987
- 1987-06-12 SE SE8702466A patent/SE8702466L/en not_active Application Discontinuation
- 1987-06-12 GB GB08713765A patent/GB2191842A/en not_active Withdrawn
- 1987-06-15 JP JP62147172A patent/JPS631887A/en active Pending
- 1987-06-18 NO NO872550A patent/NO872550L/en unknown
- 1987-06-19 SU SU874202799A patent/SU1560066A3/en active
- 1987-06-20 CN CN87104323A patent/CN1010120B/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| CN87104323A (en) | 1987-12-30 |
| SE8702466L (en) | 1987-12-21 |
| IT1204399B (en) | 1989-03-01 |
| GB2191842A (en) | 1987-12-23 |
| GB8713765D0 (en) | 1987-07-15 |
| IT8620864A0 (en) | 1986-06-20 |
| NO872550D0 (en) | 1987-06-18 |
| JPS631887A (en) | 1988-01-06 |
| SE8702466D0 (en) | 1987-06-12 |
| SU1560066A3 (en) | 1990-04-23 |
| NO872550L (en) | 1987-12-21 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C13 | Decision | ||
| GR02 | Examined patent application | ||
| AD01 | Patent right deemed abandoned | ||
| C20 | Patent right or utility model deemed to be abandoned or is abandoned |