CN102927389A - Swivel joint for entrucking low-temperature LNG (liquefied natural gas) - Google Patents
Swivel joint for entrucking low-temperature LNG (liquefied natural gas) Download PDFInfo
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- CN102927389A CN102927389A CN2012104646409A CN201210464640A CN102927389A CN 102927389 A CN102927389 A CN 102927389A CN 2012104646409 A CN2012104646409 A CN 2012104646409A CN 201210464640 A CN201210464640 A CN 201210464640A CN 102927389 A CN102927389 A CN 102927389A
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- nitrogen
- flange
- swivel joint
- rotating member
- outer ring
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- Quick-Acting Or Multi-Walled Pipe Joints (AREA)
- Joints Allowing Movement (AREA)
Abstract
The invention discloses a swivel joint for entrucking low-temperature LNG (liquefied natural gas), which comprises a left flange and a right flange, wherein the left flange is connected with an inner ring to form a left rotating member; the right flange is connected with an outer ring to form a right rotating member; the left rotating member and the right rotating member can relatively rotate; a nitrogen inlet or a nitrogen outlet is arranged at the left flange place; a nitrogen channel is arranged among the left flange, the inner ring, the outer ring and the right flange; a nitrogen outlet or a nitrogen inlet is correspondingly arranged at the right flange place; and the nitrogen inlet and the nitrogen outlet are axially arranged. The left flange and the inner ring are connected to be the left rotating member through a screw; and the right flange and the outer ring are connected to be the right rotating member through a screw. By modifying the nitrogen purging route, and axially arranging the nitrogen inlet and the nitrogen outlet, the pipelines are more close to the LNG pipeline; the nitrogen pipelines are always located at the inner side, not easy to collide so as to avoid the damage when being operated.
Description
Technical field
The present invention relates to the employed low temperature LNG of a kind of petrochemical industry fluid assembly and disassembly process entrucking swivel joint.
Background technique
The low temperature oil filling riser is the domestic industrial products that just developed in recent years, is mainly used in the loading and unloading of petrochemical industry cryogen.Its technological core parts are swivel joint, the main product on the domestic market as shown in Figure 1, its main structure consists of left flange, right flange, inner ring, outer ring and Sealing.Good sealing and the operating characteristics that is determining swivel joint of the rationality of rotary joint structure and design size.Because swivel joint is to work under the ultralow temperature state, do not freeze for guaranteeing its raceway gap, need to maintain the nitrogen circulation.Therefore designed the nitrogen blowing passage in the structure.Herein, the nitrogen entry and exit of existing swivel joint design are radially.Arrange that pipeline is more outer, easily collide nitrogen purge line when outer arm rotates in oil filling riser, cause nitrogen pipeline to destroy.
Summary of the invention
Technical problem to be solved by this invention is: the survivable low temperature LNG of a kind of nitrogen pipeline entrucking swivel joint is provided.
For solving the problems of the technologies described above, the technical solution used in the present invention is: a kind of low temperature LNG entrucking swivel joint, comprise left flange, right flange, left flange connects inner ring and forms the anticlockwise parts, right flange connects the outer ring and forms the right rotation parts, the anticlockwise parts can rotate relatively with the right rotation parts, left flange is provided with nitrogen inlet or nitrogen outlet, be provided with channel of nitrogen between left flange, inner ring, outer ring and the right flange, right flange is provided with corresponding nitrogen outlet or nitrogen inlet, and nitrogen inlet and nitrogen outlet axially arrange.
Left flange and inner ring are linked into the anticlockwise parts with screw, and right flange and outer ring are linked into the right rotation parts with screw.
The invention has the beneficial effects as follows: the present invention has revised the nitrogen blowing route, and nitrogen inlet and nitrogen outlet axially arrange, so pipeline arranges and more to press close to the LNG pipeline, so that nitrogen pipeline is in the inboard all the time, is not easy to be collided, and is destroyed when avoiding operating.
Description of drawings
Fig. 1 is the structural representation of swivel joint in the prior art;
Fig. 2 is the structural representation of swivel joint among the present invention.
Among the figure: 1, right flange, 5, the outer ring, 6, steel ball, 7, inner ring, 10, left flange, 11, ferrule fitting.
Embodiment
Below in conjunction with accompanying drawing, describe specific embodiments of the present invention in detail.
As shown in Figure 2, low temperature LNG entrucking swivel joint of the present invention comprises left flange 10, right flange 1, and left flange 10 is linked into the anticlockwise parts with inner ring 7 usefulness screws, right flange 1 is linked into the right rotation parts with outer ring 5 usefulness screws, and the anticlockwise parts can rotate relatively with the right rotation parts.Has the steel ball 6 that is covered with a week between inner ring 7, the outer ring 5.
The present invention has revised the nitrogen blowing route, and nitrogen inlet and nitrogen outlet axially arrange, so pipeline arranges and more to press close to the LNG pipeline, so that nitrogen pipeline is in the inboard all the time, is not easy to be collided, and is destroyed when avoiding operating.The direction of arrow shown in Fig. 2 is that nitrogen blowing flows to, and this flow direction also can flow backwards.
Claims (2)
1. low temperature LNG entrucking swivel joint, comprise left flange (10), right flange (1), left flange (10) connects inner ring (7) and forms the anticlockwise parts, right flange (1) connects outer ring (5) and forms the right rotation parts, the anticlockwise parts can rotate relatively with the right rotation parts, it is characterized in that: described left flange (10) locates to be provided with nitrogen inlet or nitrogen outlet, left flange (10), inner ring (7), be provided with channel of nitrogen between outer ring (5) and the right flange (1), right flange (1) is provided with corresponding nitrogen outlet or nitrogen inlet, and nitrogen inlet and nitrogen outlet axially arrange.。
2. low temperature LNG entrucking swivel joint according to claim 1, it is characterized in that: described left flange (10) is linked into the anticlockwise parts with inner ring (7) with screw, and right flange (1) is linked into the right rotation parts with outer ring (5) with screw.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012104646409A CN102927389A (en) | 2012-11-19 | 2012-11-19 | Swivel joint for entrucking low-temperature LNG (liquefied natural gas) |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012104646409A CN102927389A (en) | 2012-11-19 | 2012-11-19 | Swivel joint for entrucking low-temperature LNG (liquefied natural gas) |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102927389A true CN102927389A (en) | 2013-02-13 |
Family
ID=47642262
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012104646409A Pending CN102927389A (en) | 2012-11-19 | 2012-11-19 | Swivel joint for entrucking low-temperature LNG (liquefied natural gas) |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102927389A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105697909A (en) * | 2016-04-19 | 2016-06-22 | 北京航天发射技术研究所 | Low-temperature rotation connector |
| RU2776400C1 (en) * | 2021-08-09 | 2022-07-19 | Общество с ограниченной ответственностью "Газпром 335" | Swivel joint |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3324630A1 (en) * | 1983-07-08 | 1985-01-24 | Connex Verladeanlagen GmbH + Co. KG, 4618 Kamen | Rotating pipe joint |
| US4844514A (en) * | 1984-12-31 | 1989-07-04 | Entreprise D'equipments Mecanique Et Hydrauliques E.M.H. | Rotary joint device for a cryogenic liquid |
| CN2725266Y (en) * | 2004-07-23 | 2005-09-14 | 连云港远洋流体装卸设备有限公司 | Low temperature fluid handling arm |
| CN202501132U (en) * | 2012-03-02 | 2012-10-24 | 江苏德威机械设备有限公司 | Low-temperature rotary joint used for fluid delivery |
| EP2515019A1 (en) * | 2011-04-20 | 2012-10-24 | SVT Gmbh | Pipe coupling in the form of a swivel joint of a loading arm |
| CN202937919U (en) * | 2012-11-19 | 2013-05-15 | 江苏长隆石化装备有限公司 | Rotary joint for low-temperature LNG (liquefied natural gas) loading |
-
2012
- 2012-11-19 CN CN2012104646409A patent/CN102927389A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3324630A1 (en) * | 1983-07-08 | 1985-01-24 | Connex Verladeanlagen GmbH + Co. KG, 4618 Kamen | Rotating pipe joint |
| US4844514A (en) * | 1984-12-31 | 1989-07-04 | Entreprise D'equipments Mecanique Et Hydrauliques E.M.H. | Rotary joint device for a cryogenic liquid |
| CN2725266Y (en) * | 2004-07-23 | 2005-09-14 | 连云港远洋流体装卸设备有限公司 | Low temperature fluid handling arm |
| EP2515019A1 (en) * | 2011-04-20 | 2012-10-24 | SVT Gmbh | Pipe coupling in the form of a swivel joint of a loading arm |
| CN202501132U (en) * | 2012-03-02 | 2012-10-24 | 江苏德威机械设备有限公司 | Low-temperature rotary joint used for fluid delivery |
| CN202937919U (en) * | 2012-11-19 | 2013-05-15 | 江苏长隆石化装备有限公司 | Rotary joint for low-temperature LNG (liquefied natural gas) loading |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105697909A (en) * | 2016-04-19 | 2016-06-22 | 北京航天发射技术研究所 | Low-temperature rotation connector |
| CN105697909B (en) * | 2016-04-19 | 2019-10-11 | 北京航天发射技术研究所 | A kind of cryogenic swivel |
| RU2776400C1 (en) * | 2021-08-09 | 2022-07-19 | Общество с ограниченной ответственностью "Газпром 335" | Swivel joint |
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| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20130213 |