CN113915419B - Low-temperature fluid conveying device - Google Patents
Low-temperature fluid conveying device Download PDFInfo
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- CN113915419B CN113915419B CN202111253626.XA CN202111253626A CN113915419B CN 113915419 B CN113915419 B CN 113915419B CN 202111253626 A CN202111253626 A CN 202111253626A CN 113915419 B CN113915419 B CN 113915419B
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- Prior art keywords
- expansion joint
- transmission pipeline
- connecting piece
- watertight wall
- connection
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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
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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
- F16L5/00—Devices for use where pipes, cables or protective tubing pass through walls or partitions
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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
- F16L5/00—Devices for use where pipes, cables or protective tubing pass through walls or partitions
- F16L5/02—Sealing
- F16L5/022—Sealing by welding
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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
- F16L5/00—Devices for use where pipes, cables or protective tubing pass through walls or partitions
- F16L5/02—Sealing
- F16L5/025—Sealing the pipe being movable
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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
- F16L51/00—Expansion-compensation arrangements for pipe-lines
- F16L51/02—Expansion-compensation arrangements for pipe-lines making use of bellows or an expansible folded or corrugated tube
- F16L51/025—Expansion-compensation arrangements for pipe-lines making use of bellows or an expansible folded or corrugated tube with several corrugations
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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
- F16L59/02—Shape or form of insulating materials, with or without coverings integral with the insulating materials
- F16L59/028—Composition or method of fixing a thermally insulating material
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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
- F16L59/04—Arrangements using dry fillers, e.g. using slag wool which is added to the object to be insulated by pouring, spreading, spraying or the like
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Thermal Insulation (AREA)
Abstract
The invention relates to the technical field of ship manufacturing, and particularly discloses a low-temperature fluid conveying device. Wherein, watertight wall is equipped with first through-hole, and transmission pipeline passes first through-hole. The expansion joint is positioned on one side of the watertight wall, the transmission pipeline penetrates through the expansion joint, and one end of the expansion joint is connected with the watertight wall; the connecting piece is provided with a second through hole, the transmission pipeline penetrates through the connecting piece, and the connecting piece is connected between the other ends of the expansion joints of the transmission pipeline; the connecting piece can elastically deform. The length of the expansion joint and the thickness of the transmission pipeline can be obtained according to stress calculation, and plastic deformation in the transmission process is avoided. Through the arrangement, when the transmission pipeline is contracted or expanded, the expansion joint and the connecting piece can release the axial displacement and the radial displacement generated by the transmission pipeline relative to the watertight wall, so that the connection between the transmission pipeline and the watertight wall is prevented from being damaged.
Description
Technical Field
The invention relates to the technical field of ship manufacturing, in particular to a low-temperature fluid conveying device.
Background
When the pipe cabin penetrating piece of the existing ship passes through the watertight wall, auxiliary connection is usually carried out by using a sleeve or a web, the pipe is contracted when ultra-low temperature (-163 ℃) gas or liquid is conveyed in the pipe, radial displacement and axial displacement can occur to the watertight wall, when conveying is stopped, the pipe is expanded, radial displacement and axial displacement can occur to the watertight wall, and then the connection between the pipe and the watertight wall can be damaged.
Disclosure of Invention
The object of the present invention is to provide a cryogenic fluid transfer device such that the connection between the tube and the watertight wall is not broken when the tube is displaced radially and axially relative to the watertight wall.
In order to achieve the above purpose, the invention adopts the following technical scheme:
the present invention provides a cryogenic fluid transfer device comprising:
the watertight wall is provided with a first through hole, and the transmission pipeline passes through the first through hole;
the expansion joint is positioned on one side of the watertight wall, the transmission pipeline penetrates through the expansion joint, and one end of the expansion joint is connected with the watertight wall;
the connecting piece is provided with a second through hole, the transmission pipeline penetrates through the connecting piece, and the connecting piece is connected between the transmission pipeline and the other end of the expansion joint; the connecting piece can elastically deform.
Preferably, the connecting piece comprises a sealing plate, the second through hole is arranged at the center of the sealing plate, and the transmission pipeline is connected with the side wall of the second through hole.
Preferably, the other end of the expansion joint abuts against the side surface of the sealing plate and is fixedly connected to the side surface of the sealing plate.
Preferably, the sealing plate is made of stainless steel and has a thickness of 1-2 mm.
Preferably, the expansion joint is in sealing connection with the watertight wall, the expansion joint is in sealing connection with the connecting piece and the connecting piece is in sealing connection with the transmission pipeline, and the expansion joint is isolated from the inside and the outside.
Preferably, welding is performed between the expansion joint and the watertight wall, between the expansion joint and the connecting piece, and between the connecting piece and the transmission pipeline.
Preferably, the cryogenic fluid transfer device further comprises an isolation member provided at an outer periphery of the transfer pipe for isolating an outside from the transfer pipe.
Preferably, the insulating member comprises a first insulating member and a second insulating member, the first insulating member is arranged on the periphery of the transmission pipeline and located on one side of the sealing plate, and the second insulating member is arranged on the periphery of the transmission pipeline and located on the other side of the sealing plate.
Preferably, the first thermal insulation member and the second thermal insulation member are thermal insulation felts.
Preferably, the expansion joint is made of stainless steel.
The beneficial effects of the invention are as follows:
the invention provides a low-temperature fluid conveying device, which sequentially passes a conveying pipeline through a first through hole of a watertight wall, an expansion joint and a second through hole of a connecting piece, wherein one end of the expansion joint is connected with the watertight wall, one end of the connecting piece is connected with the conveying pipeline, the other end of the connecting piece is connected with the other end of the expansion joint, and when the conveying pipeline is contracted or expanded, the axial displacement and the radial displacement of the conveying pipeline relative to the watertight wall can be released through the expansion joint and the connecting piece.
Drawings
FIG. 1 is a schematic diagram of a cryogenic fluid transfer system according to an embodiment of the invention;
FIG. 2 is a schematic diagram of the connection relationship between expansion joints, transmission pipes and pulling plates according to an embodiment of the present invention;
fig. 3 is a schematic diagram of connection relationship among an expansion joint, a connection pipe and a transmission pipeline in an embodiment of the present invention.
In the figure:
100. watertight wall;
1. a transmission pipeline;
2. an expansion joint;
3. a connecting piece; 31. a sealing plate; 32. a pulling plate; 33. a connecting pipe;
41. a first heat retaining member; 42. and a second heat-insulating member.
Detailed Description
The following description of the embodiments of the present invention will be made apparent and fully in view of the accompanying drawings, in which some, but not all embodiments of the invention are shown. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
In the description of the present invention, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. Wherein the terms "first location" and "second location" are two distinct locations and wherein the first feature is "above," "over" and "over" the second feature includes the first feature being directly above and obliquely above the second feature, or simply indicates that the first feature is level above the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.
In the description of the present invention, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.
Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the invention.
As shown in fig. 1 to 3, the present embodiment provides a cryogenic fluid transfer device including a transfer pipe 1, an expansion joint 2, and a connection member 3. Wherein the watertight wall 100 is provided with a first through hole through which the transfer conduit 1 passes. The inner diameter of the first through hole is 1.5-2 times of the outer diameter of the transmission pipeline 1. The expansion joint 2 is positioned on one side of the watertight wall 100, the transmission pipeline 1 passes through the expansion joint 2, and one end of the expansion joint 2 is connected with the watertight wall 100; the connecting piece 3 is provided with a second through hole, the transmission pipeline 1 passes through the connecting piece 3, and the connecting piece 3 is connected between the transmission pipeline 1 and the other end of the expansion joint 2; the connecting piece 3 can be elastically deformed. The length of the expansion joint 2 and the thickness of the transmission pipeline 1 can be obtained according to stress calculation, and plastic deformation in the transmission process can be avoided.
Through the first through-hole that passes watertight wall 100 with transmission pipeline 1 in proper order, expansion joint 2 and the second through-hole of connecting piece 3, the one end and the watertight wall 100 of expansion joint 2 are connected, and the one end and the transmission pipeline 1 of connecting piece 3 are connected, and the other end of connecting piece 3 is connected with the other end of expansion joint 2, when transmission pipeline 1 takes place shrink or expansion, can release the axial displacement and the radial displacement that transmission pipeline 1 produced relative watertight wall 100 through expansion joint 2 and connecting piece 3, avoid the connection between transmission pipeline 1 and the watertight wall 100 to be destroyed.
In this embodiment, optionally, the connector 3 includes a sealing plate 31, the second through hole is disposed at a central position of the sealing plate 31, and the transmission pipeline 1 is connected to a side wall of the second through hole. The thickness of the closure plate 31 is 1-2 mm. This arrangement enables the sealing plate 31 to be radially displaced with respect to the watertight wall 100 accompanying the transfer duct 1 and to be more restored to its original state.
Preferably, the other end of the expansion joint 2 abuts against a side surface of the sealing plate 31 and is fixed to the side surface of the sealing plate 31. This arrangement makes when the transfer duct 1 contracts, drives the sealing plate 31 to move in a direction approaching the watertight wall 100, thereby compressing the expansion joint 2, and in this process, the side surface of the sealing plate 31, which is approaching the expansion joint 2, is a stress surface, so that the transfer of force is more reliable.
Further, the connecting piece 3 further includes a pulling plate 32, one end of the pulling plate 32 is welded to one side of the sealing plate 31 away from the expansion joint 2, and the other end is welded to one end of the expansion joint 2 close to the sealing plate 31. This setting makes when transmission pipeline 1 expands, drives shrouding 31 to the direction that keeps away from watertight wall 100 and removes, and then stretches through traction plate 32 traction expansion joint 2, and this process, shrouding 31 keep away from expansion joint 2's side and are the stress surface, and the transmission of force is more reliable.
Optionally, the expansion joint 2 and the watertight wall 100, the expansion joint 2 and the connecting piece 3 and the transmission pipeline 1 are all in sealing connection, and the inside and the outside of the expansion joint 2 are isolated, namely water cannot enter the expansion joint 2 from the expansion joint 2 and the watertight wall 100, the expansion joint 2 and the connecting piece 3 and the transmission pipeline 1. This arrangement enables the cryogenic fluid transfer device to be used in an underwater environment.
In this embodiment, it is preferable that the welding is performed between the expansion joint 2 and the watertight wall 100, between the expansion joint 2 and the connection member 3, and between the connection member 3 and the transmission pipe 1. By means of the arrangement, sealing connection among all parts can be achieved, connection is firm, and reliability is high.
Preferably, the cryogenic fluid transfer device further comprises an insulating member provided at the outer periphery of the transfer pipe 1 for insulating the outside from the transfer pipe 1. The arrangement of the isolation member can prevent personnel from being frostbitten after mistakenly touching the side wall of the transmission pipeline 1.
With respect to the structure of the insulating member, in this embodiment, optionally, the insulating member includes a first insulating member 41 and a second insulating member 42, where the first insulating member 41 is disposed on the outer periphery of the transmission pipe 1 and located on one side of the sealing plate 31, and the second insulating member 42 is disposed on the outer periphery of the transmission pipe 1 and located on the other side of the sealing plate 31.
Preferably, the first insulation member 41 and the second insulation member 42 are both insulation felts. This setting can prevent that personnel from being frostbitten, can also keep warm transmission pipeline 1 for maintain in transmission pipeline 1 at lower temperature all the time, avoid transmission pipeline 1 to take place great temperature variation when intermittent type nature transmission, and then produce great shrink or diastole.
Of course, in other implementations of the present embodiment, the insulating member may be a bracket wrapped around the outer periphery of the transmission pipe 1. In particular, the stent may be a honeycomb structure. The support can also include sleeve and connecting rod, and transmission pipeline 1 is located to the sleeve cover, and with transmission pipeline 1 concentric setting, the connecting rod is connected between transmission pipeline 1 and sleeve. The bracket can be made of stainless steel, plastic or rubber. Of course, in other embodiments, the brackets may also be provided at the outer peripheries of the first heat retaining member 41 and the second heat retaining member 42.
Optionally, the material of the sealing plate 31 is stainless steel, preferably 316L, and has a thickness of between 1 and 2 mm. This arrangement meets the need for radial displacement of the transfer duct 1 relative to the watertight wall 100. Preferably, the thickness of the sealing plate 31 is 1 mm. Of course, in other embodiments, the thickness of the sealing plate 31 may be 0.6 mm, 0.8 mm or 1.2 mm, but is not limited thereto.
In other embodiments, the sealing plate 31 may be replaced by a funnel-shaped connecting tube 33, wherein one end of the connecting tube 33 with a smaller diameter is welded to the transmission pipe 1, and the other end is welded to the expansion joint 2. This arrangement allows the connection tube 33 to release the radial displacement of the transfer duct 1 with respect to the watertight wall 100. Further, the connection pipe 33 is corrugated in a direction away from the transmission pipe 1, and the connection pipe 33 can be expanded and contracted in a radial direction of the transmission pipe 1. This arrangement makes it easier for the connection tube 33 to release the radial displacement of the transfer duct 1 with respect to the watertight wall 100.
Optionally, the expansion joint 2 is made of stainless steel, preferably 316L. The expansion joint can meet the expansion requirement of the expansion joint 2, can prevent rust and is suitable for underwater environments. In this embodiment, the expansion joint 2 optionally includes a bellows expansion joint 2.
It is to be understood that the above examples of the present invention are provided for clarity of illustration only and are not limiting of the embodiments of the present invention. Other variations or modifications of the above teachings will be apparent to those of ordinary skill in the art. It is not necessary here nor is it exhaustive of all embodiments. Any modification, equivalent replacement, improvement, etc. which come within the spirit and principles of the invention are desired to be protected by the following claims.
Claims (7)
1. A cryogenic fluid transfer device comprising:
a transmission pipeline (1), a watertight wall (100) is provided with a first through hole, and the transmission pipeline (1) passes through the first through hole;
an expansion joint (2), wherein the expansion joint (2) is positioned on one side of the watertight wall (100), the transmission pipeline (1) passes through the expansion joint (2), and one end of the expansion joint (2) is connected with the watertight wall (100);
a connecting piece (3), wherein the connecting piece (3) is connected between the transmission pipeline (1) and the other end of the expansion joint (2); the connecting piece (3) can elastically deform; -said connection (3) releasing the radial displacement of said transfer duct (1) with respect to said watertight wall (100);
the connecting piece (3) comprises a funnel-shaped connecting pipe (33), one end of the connecting pipe (33) with smaller diameter is connected with the transmission pipeline (1), and the other end is connected with the expansion joint (2);
the connecting tube (33) is corrugated in a direction away from the transfer line (1).
2. Cryogenic fluid transfer device according to claim 1, wherein the expansion joint (2) and the watertight wall (100), the expansion joint (2) and the connection piece (3) and the transfer pipe (1) are all in a sealed connection, and the expansion joint (2) is isolated from the inside and the outside.
3. Cryogenic fluid transfer device according to claim 2, characterized in that welding is performed between the expansion joint (2) and the watertight wall (100), between the expansion joint (2) and the connection piece (3) and between the connection piece (3) and the transfer pipe (1).
4. A cryogenic fluid transfer device according to any one of claims 1-3, further comprising an insulation member provided at the outer periphery of the transfer duct (1) for insulating the outside from the transfer duct (1).
5. Cryogenic fluid transfer device according to claim 4, wherein the insulation comprises a first insulation (41) and a second insulation (42), the first insulation (41) being arranged on the outer periphery of the transfer duct (1) and on one side of the connection duct (33), the second insulation (42) being arranged on the outer periphery of the transfer duct (1) and on the other side of the connection duct (33).
6. Cryogenic fluid transfer device according to claim 5, wherein the first thermal insulation element (41) and the second thermal insulation element (42) are thermal insulation felts.
7. Cryogenic fluid transfer device according to claim 1, characterized in that the expansion joint (2) is made of stainless steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111253626.XA CN113915419B (en) | 2021-10-27 | 2021-10-27 | Low-temperature fluid conveying device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111253626.XA CN113915419B (en) | 2021-10-27 | 2021-10-27 | Low-temperature fluid conveying device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113915419A CN113915419A (en) | 2022-01-11 |
| CN113915419B true CN113915419B (en) | 2023-06-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111253626.XA Active CN113915419B (en) | 2021-10-27 | 2021-10-27 | Low-temperature fluid conveying device |
Country Status (1)
| Country | Link |
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| CN (1) | CN113915419B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1004806A1 (en) * | 1998-11-26 | 2000-05-31 | Institut Francais Du Petrole | Sealed rotary coupling allowing movements |
| CN2436751Y (en) * | 2000-07-14 | 2001-06-27 | 樊运平 | Sealing device for underground chamber of direct buried hot supply pipeline |
| CN103775748A (en) * | 2014-01-21 | 2014-05-07 | 詹春生 | Pipe displacement elastic compensator for manhole |
| JP2015068395A (en) * | 2013-09-27 | 2015-04-13 | 株式会社Ihi | Seal device for wall penetration pipe |
| CN109654787A (en) * | 2019-01-22 | 2019-04-19 | 合肥锐联传热技术有限公司 | A kind of device of the thermally conductive radial adiabatic of axial elasticity low temperature |
| CN113108133A (en) * | 2021-05-27 | 2021-07-13 | 广船国际有限公司 | Sealing connection structure |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AT304779B (en) * | 1969-03-20 | 1973-01-25 | Uss Eng & Consult | Pouring device |
| CN103234084A (en) * | 2013-05-16 | 2013-08-07 | 武汉南华黄冈江北造船有限公司 | High temperature fluid pipeline sealed heat insulation cabin penetrating device and installation method thereof |
| CN108631536A (en) * | 2018-07-16 | 2018-10-09 | 杨厚成 | A kind of support spring device for linear motor |
| CN112576667A (en) * | 2020-11-06 | 2021-03-30 | 兰州空间技术物理研究所 | C-shaped spring support box of linear reciprocating motion part |
| CN214466965U (en) * | 2021-01-26 | 2021-10-22 | 招商局金陵鼎衡船舶(扬州)有限公司 | Flexible cabin penetrating device for pipeline heat insulation and water tightness |
| CN113007452A (en) * | 2021-04-27 | 2021-06-22 | 招商局邮轮研究院(上海)有限公司 | LNG dual fuel pipeline heat-insulating watertight flexible cabin penetrating device |
-
2021
- 2021-10-27 CN CN202111253626.XA patent/CN113915419B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1004806A1 (en) * | 1998-11-26 | 2000-05-31 | Institut Francais Du Petrole | Sealed rotary coupling allowing movements |
| CN2436751Y (en) * | 2000-07-14 | 2001-06-27 | 樊运平 | Sealing device for underground chamber of direct buried hot supply pipeline |
| JP2015068395A (en) * | 2013-09-27 | 2015-04-13 | 株式会社Ihi | Seal device for wall penetration pipe |
| CN103775748A (en) * | 2014-01-21 | 2014-05-07 | 詹春生 | Pipe displacement elastic compensator for manhole |
| CN109654787A (en) * | 2019-01-22 | 2019-04-19 | 合肥锐联传热技术有限公司 | A kind of device of the thermally conductive radial adiabatic of axial elasticity low temperature |
| CN113108133A (en) * | 2021-05-27 | 2021-07-13 | 广船国际有限公司 | Sealing connection structure |
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| Publication number | Publication date |
|---|---|
| CN113915419A (en) | 2022-01-11 |
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