CN113803549B - Manual LNG (liquefied natural gas) conveying hose quick connection and disconnection device - Google Patents
Manual LNG (liquefied natural gas) conveying hose quick connection and disconnection device Download PDFInfo
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- CN113803549B CN113803549B CN202111349590.5A CN202111349590A CN113803549B CN 113803549 B CN113803549 B CN 113803549B CN 202111349590 A CN202111349590 A CN 202111349590A CN 113803549 B CN113803549 B CN 113803549B
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- lng
- flange
- threaded shaft
- guide
- conveying hose
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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
- F16L37/00—Couplings of the quick-acting type
- F16L37/08—Couplings of the quick-acting type in which the connection between abutting or axially overlapping ends is maintained by locking members
- F16L37/12—Couplings of the quick-acting type in which the connection between abutting or axially overlapping ends is maintained by locking members using hooks, pawls or other movable or insertable locking members
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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
- F16L33/00—Arrangements for connecting hoses to rigid members; Rigid hose connectors, i.e. single members engaging both hoses
- F16L33/28—Arrangements for connecting hoses to rigid members; Rigid hose connectors, i.e. single members engaging both hoses for hoses with one end terminating in a radial flange or collar
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Filling Or Discharging Of Gas Storage Vessels (AREA)
Abstract
The invention relates to the technical field of marine equipment, in particular to a manual LNG (liquefied natural gas) conveying hose quick connection and disconnection device which comprises a bottom plate, a plurality of pressing devices and a plurality of guides, wherein the bottom plate is fixedly arranged below an LNG conveying hose flange, the pressing devices are uniformly arranged along the outer edge of the LNG conveying hose flange, each pressing device comprises a threaded shaft, a threaded shaft sleeve, an installation sleeve, an upper pressing block, a lower pressing block and a guide limiting device, the plurality of guides are arranged at the outer edge of the LNG conveying hose flange and are arranged at intervals with the plurality of pressing devices, and arc-shaped guide abdicating grooves are formed in the outer edge of the LNG conveying hard pipe flange at positions corresponding to the guides. The device provided by the invention has the advantages of simple structure, time-saving and labor-saving operation and stable and reliable operation, and can realize the quick compression and release of the LNG conveying hose connecting flange and the LNG conveying hard pipe flange.
Description
Technical Field
The invention relates to the technical field of marine equipment, in particular to a quick connection and disconnection device for a manual LNG (liquefied natural gas) conveying hose.
Background
The floating liquefied natural gas production storage and unloading device (FLNG, also known as LNG-FPSO) is a floating production device for offshore natural gas field development, is positioned at sea through a mooring system, has the functions of exploiting, processing, liquefying, storing and loading and unloading natural gas, is matched with a Liquefied Natural Gas (LNG) ship for use, and realizes the exploitation and natural gas transportation of the offshore natural gas field through an LNG pipeline and LNG quick connection and disconnection device.
The LNG quick connect disconnect-from device (QCDC) of current application adopts the mode of hydraulic unit drive hydraulic cylinder more, has arranged following problem: a hydraulic unit is required to supply hydraulic power, the hydraulic unit comprises components such as a 100% redundant hydraulic pump set, a hydraulic oil tank, an energy accumulator, a working valve and the like, the structure is complex, authorized personnel of a manufacturer are required for maintenance, the maintenance cost is high, the maintenance is difficult and the like; in addition, the LNG quick connection and disconnection device with the hydraulic execution unit is heavy, is not beneficial to movement of the hose, and needs to be matched with a crane during hoisting.
Disclosure of Invention
The invention aims to solve the technical problem of providing a manual LNG conveying hose quick connection and disconnection device which is simple in structure, time-saving and labor-saving in operation, stable and reliable in operation and capable of realizing quick pressing and loosening of an LNG conveying hose connecting flange and an LNG conveying hard pipe flange.
The invention is realized by the following technical scheme:
a manual LNG conveying hose quick connection and disconnection device comprises a bottom plate, a plurality of pressing devices and a plurality of guiding devices, wherein the bottom plate is fixedly arranged below an LNG conveying hose flange, a gap is reserved between the bottom plate and the LNG conveying hose flange, the pressing devices are uniformly arranged along the outer edge of the LNG conveying hose flange, each pressing device comprises a threaded shaft, a threaded shaft sleeve, an installation sleeve, an upper pressing block, a lower pressing block and a guiding and limiting device, the threaded shaft is arranged in the installation sleeve through a bearing, the bottom of the threaded shaft extends out of the installation sleeve, the threaded shaft sleeve and the threaded shaft are arranged on the threaded shaft in a threaded fit mode, the upper end of the threaded shaft extends out of the installation sleeve, the upper pressing block is fixedly arranged at the top of the threaded shaft sleeve, the guiding and limiting device comprises a guiding groove and a limiting pin, the guiding groove is formed in the outer wall of the threaded shaft sleeve and comprises a spiral part at the bottom and a vertical part at the upper part, the limiting pin is arranged on the installation sleeve, and the end part of the limiting pin is clamped in the guiding groove, lower briquetting fixed mounting just stretches into between LNG transport hose flange and the bottom plate and with bottom plate fixed connection in installation cover lower part, a plurality of directors locate the outer fringe department of LNG transport hose flange and set up with a plurality of collet intervals, the outer fringe of LNG transport hard tube flange is equipped with the arc director groove of stepping down with the corresponding position of director.
Optimally, the guide limiting devices are symmetrically arranged.
Furthermore, the upper pressing block comprises a connecting sleeve, a connecting arm and an upper pressing block body, the connecting sleeve is fixedly sleeved on the threaded shaft sleeve, the connecting arm is fixedly installed on the outer wall of the connecting sleeve, and the upper pressing block body is fixedly installed on the lower surface of the end part of the connecting arm.
Optimally, the mounting sleeve and the lower pressing block are integrally formed.
Further, the lower end of the threaded shaft is provided with an operating plane.
Preferably, the lower pressing block is provided with a lower pressing block mounting hole, and the lower pressing block is fixedly connected with the bottom plate through a bolt at the lower pressing block mounting hole.
Further, each guider comprises a guide plate seat, a guide head and a guide plate, the guide plate seat extends between the LNG conveying hose flange and the bottom plate and is fixedly connected with the bottom plate, the guide plate is fixedly installed on the guide plate seat, and the guide head is of a frustum structure and is fixedly installed at the top of the guide plate.
Preferably, the guide plate seat is provided with a guide plate seat mounting hole, and the guide plate seat is fixedly connected with the bottom plate through a bolt at the guide plate seat mounting hole.
Preferably, the guide plate is of an L-shaped structure, a vertical guide groove is formed in the guide plate, and the arc-shaped guider abdicating groove is fixedly provided with a guide bulge at a position corresponding to the vertical guide groove.
Furthermore, an explosion-proof flitch is fixedly arranged at the vertical guide groove.
Preferably, the number of the pressing devices and the number of the guiding devices are four.
Furthermore, a sealing cover is arranged above the LNG conveying hard pipe flange, and a handle is fixedly mounted on the sealing cover.
The invention has the advantages of
The invention provides a quick connecting and disconnecting device for a manual LNG (liquefied natural gas) conveying hose, which has the following advantages:
1. be applied to LNG and carry hose QC/DC device with a plurality of compactors, use reliably, the fault rate is low, is favorable to continuously carrying out the LNG operation of carrying.
2. Simple structure, convenient operation does not need extra power, through the setting of a plurality of compactors, just can realize in short time that LNG carries hose flange and LNG to carry the quick compression of hard tube flange and loosen to accomplish LNG and carry hose's connection and separation, realize accomplishing the target of operation fast.
Through the setting of a plurality of directors for LNG transport hose flange moves more steadily reliably, can realize LNG transport hose flange and LNG transport hard tube flange's quick adjusting well.
Drawings
FIG. 1 is a schematic front view of the present invention;
FIG. 2 is a front view of the impactor;
FIG. 3 is a schematic cross-sectional view of the impactor;
FIG. 4 is a rear view of the deflector;
in the figure, 1, a threaded shaft, 2, a mounting sleeve, 3, a threaded shaft sleeve, 4, a connecting sleeve, 5, a lower pressing block, 6, a guide groove, 7, a limiting pin, 8, an upper pressing block body, 9, a connecting arm, 10, an operating plane, 11, a bottom plate, 12, an LNG conveying hose flange, 13, an LNG conveying hard pipe flange, 14, a guide plate seat, 15, a guide plate, 16, an arc-shaped guide ware abdicating groove, 17, a guide head, 18, a sealing cover, 19, a handle, 20, a vertical guide groove, 21, an explosion-proof attachment plate and 22, a guide plate seat mounting hole are formed.
Detailed Description
The utility model provides a manual LNG carries hose high-speed joint disengaging device, its includes bottom plate 11, a plurality of collet and a plurality of director, bottom plate fixed mounting in LNG carry hose flange 12 the below and with LNG carry the hose flange between leave the clearance, it is a plurality of the collet evenly sets up along the outer fringe of LNG carry hose flange. The disassembly, assembly and replacement operations of a plurality of compactors are facilitated.
Every the compactor includes threaded shaft 1, threaded shaft sleeve 3, installation cover 2, goes up the briquetting, briquetting 5 and direction stop device down, the threaded shaft passes through the bearing and installs in the installation cover and the installation cover is stretched out to the bottom, the threaded shaft sleeve passes through screw-thread fit with the threaded shaft and installs on the threaded shaft and the upper end stretches out the installation cover, it fixedly mounted at the threaded shaft sleeve top to go up the briquetting, direction stop device includes guide way 6 and spacer pin 7, the guide way is seted up on the threaded shaft sleeve outer wall, including the spiral part of bottom and the vertical portion on upper portion, the spacer pin is installed on the installation cover and the tip card is located the guide way, briquetting fixed mounting down just stretches into between LNG delivery hose flange and the bottom plate and with bottom plate fixed connection in the installation cover lower part.
The plurality of deflectors are arranged at the outer edge of the LNG conveying hose flange and are arranged at intervals with the plurality of pressing devices, and arc-shaped deflector yielding grooves 16 are formed in the positions, corresponding to the deflectors, of the outer edge of the LNG conveying hard pipe flange 13.
When the LNG conveying hard pipe flange and the LNG conveying hose flange need to be quickly compressed for LNG conveying, the LNG conveying hose flange drives the LNG conveying hose, the plurality of compactors and the plurality of guides to move towards the LNG conveying hard pipe flange, the LNG conveying hose flange and the LNG conveying hard pipe flange are quickly aligned and close to each other through the guidance of the plurality of guides, the bottom of each compactor threaded shaft is respectively rotated by a tool, as the guide groove is formed in the outer wall of the threaded shaft sleeve and comprises a spiral part at the bottom and a vertical part at the upper part, the limiting pin is arranged on the mounting sleeve, the end part of the limiting pin is clamped in the guide groove, the threaded shaft rotates initially, the limiting pin is positioned at the spiral part, the threaded shaft sleeve rotates along with the threaded shaft, the upper pressing block rotates to the position above the LNG conveying hard pipe flange, when the limiting pin is positioned at the vertical part of the guide groove, the threaded shaft continues to rotate, and the threaded shaft moves downwards along the threaded shaft, thereby briquetting downstream in the drive, until the spacer pin is located the top of the vertical portion of guide way, stop rotatory screw shaft, go up the briquetting and compress tightly LNG transport hard tube flange and LNG transport hose flange together with lower briquetting this moment, realize LNG transport hose's quick switch-on.
During actual operation, two corresponding pressing devices can be pressed firstly, and then other corresponding pressing devices are pressed, so that the pressing of the flange is more stable and reliable, and the flange is prevented from tilting.
Finish when LNG carries, when needing to loosen LNG transport hose flange fast, the contra-rotation threaded spindle, the threaded spindle cover can be along the axial upward movement of screw thread, thereby make connecting block upward movement, with LNG transport hose flange and LNG transport hard tube flange fast loosening, after the spacer pin is located vertical portion bottom, continue rotatory threaded spindle, the threaded spindle cover can be rotatory along with the threaded spindle, thereby make the rotatory position that lets out LNG transport hose flange of briquetting, conveniently realize LNG transport hose's quick separation.
The LNG conveying hose connecting flange can run stably and reliably due to the arrangement of the plurality of the guide devices, and the LNG conveying hose connecting flange can be aligned with the LNG conveying hard pipe flange quickly. The in-process adjusts well, even LNG carries hose flange has certain deviation, because need not pass through bolted connection between two flanges, the requirement of adjusting well need not be very high, between the two compress tightly through a plurality of compactors can, can realize in short time that LNG carries hose flange and LNG and carries the quick compression and the loosening of hard tube flange to accomplish LNG and carry hose's connection and separation, realize accomplishing the target of operation fast.
Meanwhile, the compactor only needs to be manually rotated by a wrench or other tools, and compared with a mode of driving the hydraulic oil cylinder by a hydraulic unit, the hydraulic oil cylinder compactor is simple in structure, convenient to operate, reliable to use and low in failure rate, and does not need additional power.
Optimally, the two guide limiting devices are symmetrically arranged, so that the pressing block can move more stably and reliably.
Further, go up the briquetting and include adapter sleeve 4, linking arm 9 and go up briquetting body 8, the fixed suit of adapter sleeve is on the screw shaft sleeve, and linking arm fixed mounting is on the adapter sleeve outer wall, goes up briquetting body fixed mounting in linking arm tip lower surface, conveniently goes up the equipment of briquetting and screw shaft sleeve to guarantee to go up the function that compresses tightly of briquetting.
Optimized, the installation sleeve and the lower pressing block are integrally formed, so that the installation and the manufacture are convenient, and the integral structure is stable and reliable.
Further, the lower end of the threaded shaft is provided with an operating plane 10, which facilitates the use of a wrench or other tools to rotate the threaded shaft.
Preferably, a lower pressing block mounting hole (not shown) is formed in the lower pressing block, and the lower pressing block is fixedly connected with the bottom plate through a bolt in the lower pressing block mounting hole, so that the pressing device is convenient to disassemble, assemble and replace.
Further, each guider comprises a guide plate seat 14, a guide head 17 and a guide plate 15, the guide plate seat extends between the LNG conveying hose flange and the bottom plate and is fixedly connected with the bottom plate, the guide plates are fixedly installed on the guide plate seat, and the guide heads are fixedly installed at the tops of the guide plates in a frustum structure. LNG transport hose flange operation in-process leads through the cooperation in guide head and the arc director groove of stepping down, and the LNG transport hose flange of being convenient for is adjusted well with LNG transport hard tube flange fast, and the guide head is the frustum structure, and its material can adopt hard polyvinyl chloride, and the surface hardness is low, can effectively prevent to carry hard tube flange because of butt joint collision fish tail LNG.
Optimally, the guide plate seat mounting hole 22 is formed in the guide plate seat, and the guide plate seat is fixedly connected with the bottom plate through a bolt in the guide plate seat mounting hole, so that the guide device is convenient to disassemble, assemble and replace.
Preferably, the guide plate is of an L-shaped structure, a vertical guide groove 20 is formed in the guide plate, and a guide protrusion (not shown) is fixedly installed at a position, corresponding to the vertical guide groove, of the arc-shaped guider abdicating groove. In order to better realize the guiding, a guide protrusion abdicating part can be arranged on the guide head. In the operation process of the LNG conveying hose connecting flange, the guide head and the arc-shaped guider are firstly matched with the receding groove to guide, then the guide protrusion and the vertical guide groove are matched to guide, so that the LNG conveying hose connecting flange is more stable and reliable in operation, and the LNG conveying hose connecting flange and the LNG conveying hard pipe connecting flange are more convenient to align.
Further, the vertical guide groove is fixedly provided with an explosion-proof attachment plate 21 which can be made of beryllium copper alloy and other materials, and sparks generated by collision in the butt joint process of the LNG conveying hose connecting flange and the LNG conveying hard pipe connecting flange can be effectively prevented.
Preferably, the number of the pressing devices and the number of the guiding devices are four. Both can guarantee the LNG and carry reliable adjusting well of operation in-process between hose flange and the LNG transport hard tube flange, can guarantee again that reliable compressing tightly between LNG transport hose flange and the LNG transport hard tube flange.
Further, a sealing cover 18 is arranged above the LNG conveying hard pipe flange, and a handle 19 is fixedly mounted on the sealing cover. When the device is not used, the sealing cover can be covered above the LNG conveying hard pipe flange, impurities and the like are prevented from entering the flange, and the handle is arranged to facilitate manual moving or lifting of the sealing cover.
In conclusion, the manual quick connection and disconnection device for the LNG conveying hose, provided by the invention, has the advantages of simple structure, time and labor saving in operation, stable and reliable operation, and capability of realizing quick compression and release of the LNG conveying hose connecting flange and the LNG conveying hard pipe flange.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. The utility model provides a manual LNG carries hose high-speed joint disengaging device which characterized in that: the LNG conveying hose flange comprises a bottom plate, a plurality of pressing devices and a plurality of guides, wherein the bottom plate is fixedly arranged below an LNG conveying hose flange, a gap is reserved between the bottom plate and the LNG conveying hose flange, the pressing devices are uniformly arranged along the outer edge of the LNG conveying hose flange, each pressing device comprises a threaded shaft, a threaded shaft sleeve, an installation sleeve, an upper pressing block, a lower pressing block and a guiding and limiting device, the threaded shaft is arranged in the installation sleeve through a bearing, the bottom of the threaded shaft extends out of the installation sleeve, the threaded shaft sleeve and the threaded shaft are arranged on the threaded shaft in a threaded matching mode, the upper end of the threaded shaft extends out of the installation sleeve, the upper pressing block is fixedly arranged at the top of the threaded shaft sleeve, the guiding and limiting device comprises a guide groove and a limiting pin, the guide groove is formed in the outer wall of the threaded shaft sleeve and comprises a spiral part at the bottom and a vertical part at the upper part, the limiting pin is arranged on the installation sleeve, and the end part of the limiting pin is clamped in the guide groove, lower briquetting fixed mounting just stretches into between LNG transport hose flange and the bottom plate and with bottom plate fixed connection in installation cover lower part, a plurality of directors locate the outer fringe department of LNG transport hose flange and set up with a plurality of collet intervals, the outer fringe of LNG transport hard tube flange is equipped with the arc director groove of stepping down with the corresponding position of director.
2. The quick connection and disconnection device for the manual LNG conveying hose of claim 1, wherein the guide limiting devices are symmetrically arranged in two sets.
3. The quick connection and disconnection device for the manual LNG conveying hose as claimed in claim 1, wherein the upper pressing block comprises a connecting sleeve, a connecting arm and an upper pressing block body, the connecting sleeve is fixedly sleeved on the threaded shaft, the connecting arm is fixedly installed on the outer wall of the connecting sleeve, and the upper pressing block body is fixedly installed on the lower surface of the end portion of the connecting arm.
4. The manual LNG transfer hose quick connect disconnect device of claim 1, wherein the mounting sleeve is integrally formed with the lower clamp block.
5. The quick coupling release device for manual LNG transfer hoses of claim 1, wherein the lower end of the screw shaft is provided with an operation plane.
6. The quick manual connection and disconnection device for the LNG conveying hose as claimed in claim 1, wherein each guide comprises a guide plate seat, a guide head and a guide plate, the guide plate seat extends between the LNG conveying hose flange and the bottom plate and is fixedly connected with the bottom plate, the guide plate is fixedly installed on the guide plate seat, and the guide head is of a frustum structure and is fixedly installed at the top of the guide plate.
7. The quick connection and disconnection device for the manual LNG conveying hose according to claim 6, wherein the guide plate is L-shaped, a vertical guide groove is formed in the guide plate, and a guide protrusion is fixedly arranged at a position, corresponding to the vertical guide groove, of the arc-shaped guide receding groove.
8. The quick connection and disconnection device for the manual LNG conveying hose of claim 7, wherein an anti-explosion attachment plate is fixedly installed at the vertical guide groove.
9. The manual LNG transfer hose quick-connect disconnect device of claim 1, wherein the number of the depressors and guides is four.
10. The quick connection and disconnection device for the manual LNG conveying hose as claimed in claim 1, wherein a sealing cover is arranged above the LNG conveying hard pipe flange, and a handle is fixedly arranged on the sealing cover.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111349590.5A CN113803549B (en) | 2021-11-15 | 2021-11-15 | Manual LNG (liquefied natural gas) conveying hose quick connection and disconnection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111349590.5A CN113803549B (en) | 2021-11-15 | 2021-11-15 | Manual LNG (liquefied natural gas) conveying hose quick connection and disconnection device |
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| Publication Number | Publication Date |
|---|---|
| CN113803549A CN113803549A (en) | 2021-12-17 |
| CN113803549B true CN113803549B (en) | 2022-02-08 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202111349590.5A Active CN113803549B (en) | 2021-11-15 | 2021-11-15 | Manual LNG (liquefied natural gas) conveying hose quick connection and disconnection device |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114183605A (en) * | 2021-12-31 | 2022-03-15 | 潍柴动力股份有限公司 | Hydraulic pump flange quick clamping device |
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| CN107076337A (en) * | 2014-11-05 | 2017-08-18 | 埃克赛洛特能量有限合伙公司 | The flexible cryogenic flexible pipe conveyed for liquefied natural gas (LNG) |
| DE102018126812A1 (en) * | 2018-06-26 | 2020-01-02 | Hoppe Bordmesstechnik Gmbh | Coupling device, supply line and system for the transmission of a medium |
| CN210510572U (en) * | 2019-04-28 | 2020-05-12 | 江苏西沙科技有限公司 | Ultra-low temperature is compound hose for liquefied natural gas transport |
| CN213685745U (en) * | 2020-11-24 | 2021-07-13 | 南通世发船舶机械有限公司 | Low-temperature dry-type quick joint for ship |
| CN213735457U (en) * | 2020-09-22 | 2021-07-20 | 中海油能源发展股份有限公司 | Movable self-elevating LNG production and storage and transportation integrated platform arrangement structure |
| CN214119253U (en) * | 2020-08-27 | 2021-09-03 | 西藏建洲实业有限公司 | Pipeline for pneumatic transmission capable of being spliced quickly |
| CN214667579U (en) * | 2021-02-09 | 2021-11-09 | 中海石油气电集团有限责任公司 | Horizontal-structure LNG conveying system rotary joint performance testing device |
-
2021
- 2021-11-15 CN CN202111349590.5A patent/CN113803549B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107076337A (en) * | 2014-11-05 | 2017-08-18 | 埃克赛洛特能量有限合伙公司 | The flexible cryogenic flexible pipe conveyed for liquefied natural gas (LNG) |
| DE102018126812A1 (en) * | 2018-06-26 | 2020-01-02 | Hoppe Bordmesstechnik Gmbh | Coupling device, supply line and system for the transmission of a medium |
| CN210510572U (en) * | 2019-04-28 | 2020-05-12 | 江苏西沙科技有限公司 | Ultra-low temperature is compound hose for liquefied natural gas transport |
| CN214119253U (en) * | 2020-08-27 | 2021-09-03 | 西藏建洲实业有限公司 | Pipeline for pneumatic transmission capable of being spliced quickly |
| CN213735457U (en) * | 2020-09-22 | 2021-07-20 | 中海油能源发展股份有限公司 | Movable self-elevating LNG production and storage and transportation integrated platform arrangement structure |
| CN213685745U (en) * | 2020-11-24 | 2021-07-13 | 南通世发船舶机械有限公司 | Low-temperature dry-type quick joint for ship |
| CN214667579U (en) * | 2021-02-09 | 2021-11-09 | 中海石油气电集团有限责任公司 | Horizontal-structure LNG conveying system rotary joint performance testing device |
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