CN103148292A - Vacuum heat insulation pipeline plug-in type connector and connecting method thereof - Google Patents
Vacuum heat insulation pipeline plug-in type connector and connecting method thereof Download PDFInfo
- Publication number
- CN103148292A CN103148292A CN2011103995592A CN201110399559A CN103148292A CN 103148292 A CN103148292 A CN 103148292A CN 2011103995592 A CN2011103995592 A CN 2011103995592A CN 201110399559 A CN201110399559 A CN 201110399559A CN 103148292 A CN103148292 A CN 103148292A
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- Prior art keywords
- plug
- inner tube
- male spigot
- vacuum heat
- outer tube
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- 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
- F16L59/184—Flanged joints
-
- 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
- F16L59/141—Arrangements for the insulation of pipes or pipe systems in which the temperature of the medium is below that of the ambient temperature
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Thermal Insulation (AREA)
Abstract
The invention discloses a vacuum heat insulation pipeline plug-in type connector and a connecting method thereof. The vacuum heat insulation pipeline plug-in type connector comprises a female plug and a male plug, wherein the female plug comprises an outer pipe and an inner pipe; a heat insulation material is wound on the interlayer of the outer pipe and the inner pipe; the male plug comprises a first outer pipe, a second outer pipe and an inner pipe; the heat insulation material is wound on the interlayer of the first outer pipe and the inner pipe; the interlayer of the outer pipe and the inner pipe of the female plug is communicated with the interlayer of connected pipe sections, and vacuumized; the interlayer of the first outer pipe and the inner pipe of the male plug is communicated with the interlayer of the connected pipe sections, and vacuumized; the second outer pipe of the male plug is plugged into the inner pipe of the female plug; and pipe section sealing sections of the female plug and the male plug are matched with each other by using materials with different heat expansion and cold contraction coefficients. In the mode, the vacuum heat insulation pipeline plug-in type connector is high in sealing performance and heat insulation performance under cryogenic working conditions; the simple and convenient plug-in type connection of vacuum heat insulation pipe sections is effectively realized; and the vacuum heat insulation pipeline plug-in type connector is great in economic benefit and using value.
Description
Technical field
The present invention relates to the cryogenic liquid transportation art, particularly relate to a kind of vacuum heat-insulated pipe inserting type coupling piece and connecting method thereof with automatic sealing function under cryogenic.
Background technique
This patent is mainly used in the connection between the vacuum heat-insulated pipe pipeline section of carrying cryogenic liquid (temperature is generally lower than-100 ℃), by the cryogenic insulating pipeline section being connect the pipe-line system that forms the transmission deep cooling medium.
Due to the particularity of carrying deep cooling medium, for carrying the pipeline section coupling piece to propose very high requirement: should guarantee the sealability at connecting joint place, can not leak when namely fed sheet of a media is through coupling piece; Also to keep good heat-insulating property.Consider in addition the applied environment of delivery pipeline system, relate to installation, safeguard and because of in particular cases many situations such as dismounting, so the design synthesis of vacuum heat-insulated pipe coupling piece is thought of as: good sealability, good heat-insulating property, it is convenient to install, convenient disassembly.
In prior art, vacuum heat-insulated pipe inserting type coupling piece plug is divided into cloudy plug and male spigot, and the negative and positive plug welds respectively the end that is connected in two pipelines that need connection, and both are connected and form the pipeline section coupling piece, and negative and positive plug sealing surface adopts the seal ring sealing.
Its major defect is, heat is seriously leaked, the heat-insulating property extreme difference in the connector assembly joint; The sealability extreme difference of connecting joint in the situation that temperature is changed to deep cooling by normal temperature, can't seal reliably.
Summary of the invention
The technical problem that the present invention mainly solves is to provide a kind of vacuum heat-insulated pipe plug-in type coupling piece and connecting method thereof, can realize good sealing, and solved the leakage of vacuum heat-insulated pipe coupling piece, leakage heat seriously, and the difficult problem of dismounting difficulty, good economic benefit and use value had.
For solving the problems of the technologies described above, the technological scheme that the present invention adopts is: a kind of vacuum heat-insulated pipe plug-in type coupling piece is provided, comprise: cloudy plug and male spigot, the flange plate that described cloudy plug comprises outer tube, inner tube and connects outer tube and inner tube and dock with the end face of flange of male spigot, the interior wound insulation material of the interlayer of described outer tube and inner tube;
Described male spigot comprises the first outer tube, the second outer tube, inner tube and the flange plate that connects the first outer tube, the second outer tube and inner tube and dock with cloudy plug end face of flange, wound insulation material in the interlayer of described the first outer tube and inner tube, socket connection between described cloudy plug and male spigot.
In a preferred embodiment of the present invention, described cloudy plug is fixedly connected with one by welding manner and is coupled pipeline section, and described male spigot is fixedly connected with one by welding manner and is coupled pipeline section.
In a preferred embodiment of the present invention, an end that connects with coupled pipeline section weldering on described cloudy plug inner tube is provided with cloudy plug end sealing section, an end that connects with cloudy plug inner tube on described male spigot inner tube is provided with male spigot end sealing section, be Spielpassung at normal temperatures between described cloudy plug end sealing section and male spigot end sealing section, form close-fitting hoop sealing surface under cryogenic.
In a preferred embodiment of the present invention, the interlayer of described cloudy plug upper exterior tube and inner tube is communicated with the interlayer that is coupled pipeline section and vacuumizes simultaneously; On described male spigot, the first outer tube is communicated with the interlayer that is coupled pipeline section with the interlayer of inner tube and vacuumizes simultaneously.
For solving the problems of the technologies described above, another technical solution used in the present invention is: the connecting method that a kind of vacuum heat-insulated pipe plug-in type coupling piece is provided, it is characterized in that, the internal diameter of cloudy plug inner tube and the external diameter of male spigot the second outer tube are equipped with, and the second outer tube of described male spigot is inserted in the inner tube inside of cloudy plug.
In a preferred embodiment of the present invention, the coefficient of thermal expansion and contraction of the hoop seal face materials of described cloudy plug end sealing section is greater than the coefficient of thermal expansion and contraction of the hoop seal face materials of male spigot end sealing section.
The invention has the beneficial effects as follows: in the present invention, the sealing surface of the sealing surface of cloudy plug end sealing section and male spigot end sealing section has adopted different materials, the physical property of expanding with heat and contract with cold by material has guaranteed that the sealing surface of vacuum heat-insulated pipe plug-in type coupling piece has been issued to good sealability at cryogenic environment, solve the hot serious and dismounting hard problem of the puzzlement market leakage of vacuum heat-insulated pipe coupling piece, leakage for many years, had good economic benefit and use value.
Description of drawings
Fig. 1 is the structural representation of a preferred embodiment of the cloudy plug of vacuum heat-insulated pipe plug-in type coupling piece of the present invention;
Fig. 2 is the structural representation of a preferred embodiment of the male spigot of vacuum heat-insulated pipe plug-in type coupling piece of the present invention;
In accompanying drawing, the mark of each parts is as follows: 1, cloudy plug, 11, outer tube, 12, inner tube, 2, male spigot, 21, the first outer tube, the 22, second outer tube, 23, inner tube, 3, be coupled pipeline section, 4, thermoinsulation material, 5, flange plate, 6, cloudy plug end sealing section, 7, male spigot end sealing section.
Embodiment
Below in conjunction with accompanying drawing, preferred embodiment of the present invention is described in detail, thereby so that advantages and features of the invention can be easier to be it will be appreciated by those skilled in the art that, protection scope of the present invention is made more explicit defining.
See also Fig. 1 and Fig. 2, the embodiment of the present invention comprises:
A kind of vacuum heat-insulated pipe plug-in type coupling piece comprises: cloudy plug 1 and male spigot 2, socket connection between described cloudy plug 1 and male spigot 2.
Be fixedly connected with one on described cloudy plug 1 and be coupled pipeline section 3, be fixedly connected with one on described male spigot 2 and be coupled pipeline section 3.Particularly, cloudy plug 1 and be coupled Placement between the end of pipeline section 3 for being welded to connect, male spigot 2 and be coupled Placement between the end of pipeline section 3 for being welded to connect.
The flange plate 5 that described cloudy plug 1 comprises outer tube 11, inner tube 12 and connects outer tube 11 and inner tube 12 and dock with the end face of flange of male spigot 2, the interior wound insulation material 4 of the interlayer of described outer tube 11 and inner tube 12.Described male spigot 2 comprises the first outer tube 21, the second outer tube 22, inner tube 23 and the flange plate 5 that connects the first outer tube 21, the second outer tube 22 and inner tube 23 and dock with cloudy plug 1 end face of flange, described the first outer tube 21 and the interior wound insulation material 4 of the interlayer of inner tube 23.
Particularly, be provided with cloudy plug end sealing section 6 with coupled pipeline section 3 a welderings end even on the inner tube 12 of described cloudy plug 1, be provided with cloudy plug segment seal section 7 at an end that connects with the inner tube 12 of cloudy plug 1 on the inner tube 22 of described male spigot 2, be Spielpassung at normal temperatures between described cloudy plug end sealing section 6 and male spigot end sealing section 7, can automatically form close-fitting hoop sealing surface under cryogenic.
The mezzanine space of cloudy plug 1 upper exterior tube 11 and inner tube 12 be coupled pipeline section 3 welderings and connect after, be communicated with the mezzanine space that is coupled pipeline section 3, and carry out interlayer vacuum-pumping together with being coupled pipeline section 3; On male spigot 2 mezzanine space of the first outer tube 21 and inner tube 23 be coupled pipeline section 3 welderings and connect after, be communicated with the mezzanine space that is coupled pipeline section 3, and carry out interlayer vacuum-pumping together with being coupled pipeline section 3.
In addition; wound insulation material 4 in the interlayer of cloudy plug 1 upper exterior tube 11 and inner tube 12; the first outer tube 21 and the interior wound insulation material 4 of the interlayer of inner tube 23 on male spigot 2; after cloudy plug 1 and male spigot 2 patch and link; the inner tube whole process of whole coupling piece all is in the vacuum multi-layer insulation protection, realizes good heat-insulating property.
A kind of connecting method of vacuum heat-insulated pipe plug-in type coupling piece,
Comprise: on described cloudy plug 1 on the internal diameter of inner tube 12 and male spigot the external diameter of 2 second outer tubes 22 be equipped with, namely male spigot 2 is by the second outer tube 22 peg graft inner tube 12 of cloudy plug 1.
The hoop seal face materials of the hoop seal face materials of described cloudy plug end sealing section 6 and male spigot end sealing section 7 is different.
Particularly, the coefficient of thermal expansion and contraction of cloudy plug end sealing section 6 hoop seal face materials is greater than the coefficient of thermal expansion and contraction of male spigot end sealing section 7 hoop seal face materials.
Hold connection tightly because of the different shrinkage degree realization after passing into deep cooling medium of two kinds of sealing materials between the hoop sealing surface of the end sealing section 6 of cloudy plug 1 and the hoop sealing surface of the segment seal section 7 of male spigot 2, have good sealing effect.
In addition, in patching process, the second outer tube 22 of male spigot 2 all inserts in the inner tube 12 of cloudy plug 1.Like this, the omnidistance inner tube of cloudy plug 1 and male spigot 2 all is in the protection of vacuum multi-layer insulation, realizes good heat-insulating property.
Cloudy plug 1 with the specific works process that male spigot 2 connects is:
When passing into deep cooling medium, because the performance of expanding with heat and contract with cold of two kinds of different sealing plane materiel material is widely different, (for example the hoop sealing surface of male spigot end sealing section 7 adopts special steel, does not substantially shrink; And the hoop sealing surface of cloudy plug end sealing section 6 adopts stainless steel, produces significantly to shrink), thus cloudy plug end sealing section 6 encases male spigot end sealing section 7 tightly, the sealing effect of realizing ideal.
After cryogenic liquid is discharged coupling piece, the hoop sealing surface of outer field cloudy plug end sealing section 6 raises along with temperature and expands, and the hoop sealing surface of the male spigot end sealing section 7 of internal layer does not expand after temperature raises substantially, original tightening state self-relaxation, cloudy plug 1 separates automatically with male spigot 2.
The working principle of vacuum heat-insulated pipe inserting type coupling piece of the present invention and connecting method thereof is:
Mainly used the physical property of material.General metallic material, contraction to a certain degree all can be arranged when being in cryogenic environment, when rising, temperature can expand again, it is the heat expansion shrinkage, the physical property of expanding with heat and contract with cold by material has realized that the sealing surface of vacuum heat-insulated pipe plug-in type coupling piece has been issued to good sealability at cryogenic environment, for vacuum heat-insulated pipe pipeline section coupling piece has proposed a kind of new design, can realize good sealing effect and heat-insulating property.
The beneficial effect of vacuum heat-insulated pipe inserting type coupling piece of the present invention and connecting method thereof is:
The mezzanine space of cloudy plug 1 and male spigot 2 is wound with thermoinsulation material 4, after being coupled pipeline section 3 welderings even, mezzanine space vacuumizes, and guarantees that the omnidistance inner tube of pipe link device all is under vacuum insulation cold insulation condition, therefore leaking heat seldom, has reached good insulation and thermal insulation performance;
the hoop sealing surface of cloudy plug end sealing section 6 and the hoop sealing surface of male spigot end sealing section 7 have adopted different materials, the physical property of expanding with heat and contract with cold by Material Used has guaranteed that the sealing surface of vacuum heat-insulated pipe plug-in type coupling piece has been issued to good sealability at cryogenic environment, for vacuum heat-insulated pipe pipeline section coupling piece has proposed a kind of new design, this design can realize good sealing effect and sealing effect, solved puzzlement market vacuum heat-insulated pipe coupling piece leakage for many years, leak hot serious and dismounting hard problem, has good economic benefit and use value.
The above is only embodiments of the invention; not thereby limit the scope of the claims of the present invention; every equivalent structure or equivalent flow process conversion that utilizes specification of the present invention and accompanying drawing content to do; or directly or indirectly be used in other relevant technical fields, all in like manner be included in scope of patent protection of the present invention.
Claims (6)
1. vacuum heat-insulated pipe plug-in type coupling piece, it is characterized in that, comprise: the flange plate that cloudy plug and male spigot, described cloudy plug comprise outer tube, inner tube and connect outer tube and inner tube and dock with the end face of flange of male spigot, the interior wound insulation material of the interlayer of described outer tube and inner tube;
Described male spigot comprises the first outer tube, the second outer tube, inner tube and the flange plate that connects the first outer tube, the second outer tube and inner tube and dock with cloudy plug end face of flange, wound insulation material in the interlayer of described the first outer tube and inner tube, socket connection between described cloudy plug and male spigot.
2. vacuum heat-insulated pipe plug-in type coupling piece according to claim 1, is characterized in that, described cloudy plug is fixedly connected with one by welding manner and is coupled pipeline section, and described male spigot is fixedly connected with one by welding manner and is coupled pipeline section.
3. vacuum heat-insulated pipe plug-in type coupling piece according to claim 2, it is characterized in that, an end that connects with coupled pipeline section weldering on described cloudy plug inner tube is provided with cloudy plug end sealing section, an end that connects with cloudy plug inner tube on described male spigot inner tube is provided with male spigot end sealing section, be Spielpassung at normal temperatures between described cloudy plug end sealing section and male spigot end sealing section, form close-fitting hoop sealing surface under cryogenic.
4. vacuum heat-insulated pipe plug-in type coupling piece according to claim 2, is characterized in that, the interlayer of described cloudy plug upper exterior tube and inner tube is communicated with the interlayer that is coupled pipeline section and vacuumizes simultaneously; On described male spigot, the first outer tube, the second outer tube are communicated with the interlayer that is coupled pipeline section with the interlayer of inner tube and vacuumize simultaneously.
5. the connecting method of a vacuum heat-insulated pipe plug-in type coupling piece, is characterized in that, the external diameter of the internal diameter of cloudy plug inner tube and male spigot the second outer tube is equipped with, and the second outer tube of described male spigot is inserted in the inner tube inside of cloudy plug.
6. the connecting method of vacuum heat-insulated pipe plug-in type coupling piece according to claim 5, it is characterized in that, the coefficient of thermal expansion and contraction of the hoop seal face materials of described cloudy plug seal section is greater than the coefficient of thermal expansion and contraction of the hoop seal face materials of male spigot seal section.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110399559.2A CN103148292B (en) | 2011-12-06 | 2011-12-06 | Vacuum heat-insulated pipe plug-in type coupling piece and connecting method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110399559.2A CN103148292B (en) | 2011-12-06 | 2011-12-06 | Vacuum heat-insulated pipe plug-in type coupling piece and connecting method thereof |
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| CN103148292A true CN103148292A (en) | 2013-06-12 |
| CN103148292B CN103148292B (en) | 2015-11-25 |
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| CN201110399559.2A Active CN103148292B (en) | 2011-12-06 | 2011-12-06 | Vacuum heat-insulated pipe plug-in type coupling piece and connecting method thereof |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105508763A (en) * | 2016-01-28 | 2016-04-20 | 瑞富工程技术（常州）有限公司 | Sheath type insertion connector and sealing connecting method for vacuum thermal insulating pipeline |
| CN108498163A (en) * | 2018-04-24 | 2018-09-07 | 海杰亚（北京）医疗器械有限公司 | The vacuum interlayer treatment process of fission connection cryoablation needle |
| CN108742825A (en) * | 2018-06-15 | 2018-11-06 | 海杰亚（北京）医疗器械有限公司 | Equipment and its SURGICAL NEEDLE THREADING DEVICE group for minimally invasive combination therapy |
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| JPH10231970A (en) * | 1997-02-21 | 1998-09-02 | Mitsubishi Heavy Ind Ltd | Vacuum insulated pipe fitting |
| JP2000329268A (en) * | 1999-05-17 | 2000-11-30 | Sumitomo Heavy Ind Ltd | Bayonet coupling for low temperature fluid |
| EP1619436A2 (en) * | 2004-07-20 | 2006-01-25 | Chart Industries, Inc. | Cryogenic seal for vacuum-insulated pipe |
| CN101326396A (en) * | 2005-12-10 | 2008-12-17 | 尼克桑斯公司 | Plug-in coupling for cryogenic lines |
| CN101688632A (en) * | 2007-06-19 | 2010-03-31 | 普莱克斯技术有限公司 | Vacuum insulated piping assembly method |
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2011
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|---|---|---|---|---|
| DE8432062U1 (en) * | 1984-11-02 | 1985-03-07 | kabelmetal electro GmbH, 3000 Hannover | Plug connection for line pipes for the transport of deep-frozen media |
| WO1991004436A1 (en) * | 1989-09-18 | 1991-04-04 | Aga Ab | A twist coupling for vacuum pipes |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105508763A (en) * | 2016-01-28 | 2016-04-20 | 瑞富工程技术（常州）有限公司 | Sheath type insertion connector and sealing connecting method for vacuum thermal insulating pipeline |
| CN108498163A (en) * | 2018-04-24 | 2018-09-07 | 海杰亚（北京）医疗器械有限公司 | The vacuum interlayer treatment process of fission connection cryoablation needle |
| CN108498163B (en) * | 2018-04-24 | 2020-07-28 | 海杰亚（北京）医疗器械有限公司 | Vacuum interlayer treatment process for split connection cryoablation needle |
| CN108742825A (en) * | 2018-06-15 | 2018-11-06 | 海杰亚（北京）医疗器械有限公司 | Equipment and its SURGICAL NEEDLE THREADING DEVICE group for minimally invasive combination therapy |
| CN108742825B (en) * | 2018-06-15 | 2024-03-26 | 海杰亚（北京）医疗器械有限公司 | Device for minimally invasive compound treatment and multifunctional surgical needle set thereof |
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| Publication number | Publication date |
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| CN103148292B (en) | 2015-11-25 |
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