CN219639730U - Hydraulic quick connecting device suitable for LNG ship hose conveying system - Google Patents
Hydraulic quick connecting device suitable for LNG ship hose conveying system Download PDFInfo
- Publication number
- CN219639730U CN219639730U CN202320535285.3U CN202320535285U CN219639730U CN 219639730 U CN219639730 U CN 219639730U CN 202320535285 U CN202320535285 U CN 202320535285U CN 219639730 U CN219639730 U CN 219639730U
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- China
- Prior art keywords
- ship
- flange
- hose
- locking mechanism
- cylinder
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Links
- 210000001503 joint Anatomy 0.000 claims abstract description 10
- 210000000078 claw Anatomy 0.000 claims description 36
- 238000002347 injection Methods 0.000 claims description 17
- 239000007924 injection Substances 0.000 claims description 17
- 238000012546 transfer Methods 0.000 claims description 10
- 238000000926 separation method Methods 0.000 abstract description 7
- 239000003921 oil Substances 0.000 abstract 5
- 239000010720 hydraulic oil Substances 0.000 abstract 1
- 238000007789 sealing Methods 0.000 abstract 1
- 239000003949 liquefied natural gas Substances 0.000 description 19
- 238000003032 molecular docking Methods 0.000 description 11
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 4
- 238000013461 design Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000003345 natural gas Substances 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006386 neutralization reaction Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/30—Use of alternative fuels, e.g. biofuels
Landscapes
- Quick-Acting Or Multi-Walled Pipe Joints (AREA)
Abstract
The utility model discloses a hydraulic quick connecting device suitable for an LNG ship hose conveying system, which comprises a main body structure, a locking mechanism and a sealing structure. One end flange of the QDC is connected with the hose, the other end of the QDC is connected with a connecting pipe flange on the injected ship, the hose with the QDC is hoisted to the injected ship before conveying operation, the QDC is close to the connecting pipe flange, and then a hydraulic system driving oil cylinder is started to drive the locking arm to move, so that safe and rapid butt joint and separation with the injected ship are realized. The main structure comprises a ship receiving flange, a connecting pipeline, an oil cylinder base, an oil cylinder support lug and a hose connecting flange; a plurality of pairs of locking arm lugs are uniformly distributed on the outer ring of the QDC connecting arm flange; the locking mechanism comprises a locking arm and a hydraulic oil cylinder, wherein one end of the oil cylinder is connected with an oil cylinder support lug through a pin shaft, and the locking arm is also connected with the locking arm support lug through a pin shaft to form a linkage mechanism. The hydraulic quick connecting device is simple in structure and convenient to operate, and can greatly improve the butt joint efficiency.
Description
Technical Field
The utility model belongs to the technical field of quick connection, and particularly relates to a hydraulic quick connection device suitable for a ship LNG hose conveying system.
Background
With technological progress and social development, the demand for clean energy is increasing, and China actively responds to carbon neutralization call to greatly promote the application of clean energy. Natural gas is favored by China because of the advantages of large reserves, environmental protection and the like. One of the important ways of importing natural gas in China today is to transport Liquefied Natural Gas (LNG) by sea, and the cost is low. LNG cryogenic hose transfer systems are important devices for transferring LNG between offshore vessels or shore, and Quick Connect Devices (QCDC) are key devices of LNG cryogenic hose transfer systems to achieve rapid and safe docking and undocking with a ship under injection. QCDC is mainly divided into two forms of hydraulic and manual, wherein hydraulic QCDC is an important choice due to simple butt joint operation and high efficiency.
QCDC in the design of patent CN212455861U, CN212564870U, CN111059379a is complex in design due to its rotating ring and fixed ring, and there are a lot of balls between them, resulting in heavy weight of the device, difficulty in hoisting and personnel operation, and difficulty in processing, and high cost.
Disclosure of Invention
The utility model aims at solving the problems in the prior art and provides a hydraulic quick connecting device suitable for an LNG ship hose conveying system, which is characterized in that a hydraulic system drives an oil cylinder to drive a claw to rotate so as to realize butt joint and separation with a connecting pipe flange on a filled ship. The whole structure is simpler, the weight is lighter, the cost is lower, the operation is convenient, and the butt joint efficiency can be greatly improved.
The technical solution for realizing the purpose of the utility model is as follows: the device comprises a ship receiving flange, a pipeline, a standard flange, an oil cylinder, a base and a locking mechanism, wherein the locking mechanism is used for locking the ship receiving flange and a pipe connecting flange on a injected ship to realize the butt joint of the injected ship and the injected ship; one end of the pipeline is fixedly connected with the ship connecting flange, the other end of the pipeline is fixedly connected with the standard flange, and the standard flange is used for being connected with the flange at the front end of the hose; the locking mechanism is arranged outside the pipeline, one end of the locking mechanism is connected with the base, and the other end of the locking mechanism can be pressed against the connecting pipe flange on the injection ship; when the docking is started, the hydraulic system drives the oil cylinder to move, and drives the locking mechanism to move to press the connecting pipe flange on the injection ship, so that docking of the injection ship and the injection ship is completed; after LNG conveying operation is finished, the hydraulic system drives the oil cylinder to move, and drives the locking mechanism to move so as to loosen the connecting pipe flange, so that the connecting pipe flange of the hydraulic quick connecting device is separated, and separation operation is realized.
Further, an oil cylinder supporting lug is arranged on the base and used for being connected with the locking mechanism.
Further, the locking mechanism comprises a plurality of groups of oil cylinders and clamping claws which are uniformly distributed on the outer side of the pipeline, and each oil cylinder comprises a cylinder barrel and a piston rod; one side of the cylinder barrel is movably connected with an oil cylinder supporting lug, one end of the piston rod extending out of the cylinder barrel is movably connected with one end of the claw, and the other end of the claw is movably connected with a ship connecting flange;
when the docking is started, the hydraulic system drives the oil cylinders to synchronously move, the piston rods extend out of the cylinder barrel and drive one ends of the clamping claws to rotate, so that the other ends of the clamping claws can press the connecting pipe flange on the injection ship, and the docking of the injection ship and the injection ship is completed; after LNG conveying operation is finished, the hydraulic system drives the piston rod to move into the cylinder barrel 8-1 to drive the claw to rotate, and the quick connecting device and the connecting pipe flange are gradually separated to realize separation operation.
Further, one side of the cylinder barrel is movably connected with an oil cylinder support lug specifically through an oil cylinder lower pin shaft.
Further, the other end of the claw is movably connected with the ship flange specifically through a claw pin shaft.
Further, one end of the piston rod extending out of the cylinder barrel is connected with one end of the claw through a pin shaft on the oil cylinder.
Further, the outer ring of the ship receiving flange is uniformly provided with a plurality of pairs of claw lugs, and the other ends of the claws are movably connected with the claw lugs through claw pin shafts.
Further, all the oil cylinders of the locking mechanism are connected with a set of hydraulic system.
Compared with the prior art, the utility model has the remarkable advantages that:
(1) The locking mechanism has simple structure and convenient replacement.
(2) The whole device has light weight, small processing difficulty and lower cost.
(3) The QDC can be compatible with the flange of the connecting pipe on the injection vessel with more specifications, and the applicability is wider.
The utility model is described in further detail below with reference to the accompanying drawings.
Drawings
Fig. 1 is a schematic structural view of a hydraulic quick connection device suitable for an LNG ship hose transfer system according to the present utility model.
Fig. 2 is a schematic diagram of a hydraulic quick connect device of the present utility model suitable for use in LNG carrier hose transfer systems.
Fig. 3 is a schematic diagram of a jaw of a hydraulic quick connect device of the present utility model suitable for use in a hose transfer system for LNG ships.
Detailed Description
The present utility model will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present utility model more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.
It should be noted that, if directional indications (such as up, down, left, right, front, and rear … …) are included in the embodiments of the present utility model, the directional indications are merely used to explain the relative positional relationship, movement conditions, etc. between the components in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indications are correspondingly changed.
With reference to fig. 1 to 3, the utility model provides a hydraulic quick connection device suitable for a hose conveying system of an LNG ship, which comprises a ship receiving flange 1, a pipeline 2, a standard flange 3, an oil cylinder 8, a base 5 and a locking mechanism, wherein the locking mechanism is used for locking the ship receiving flange 1 and a pipe receiving flange on a filling ship so as to realize the butt joint of the filling ship and the filling ship; one end of the pipeline 2 is fixedly connected with the ship connecting flange 1, the other end of the pipeline is fixedly connected with the standard flange 3, and the standard flange 3 is used for being connected with a flange at the front end of the hose; the base 5 is fixed outside the pipeline 2, the locking mechanism is arranged outside the pipeline 2, one end of the locking mechanism is connected with the base 5, and the other end of the locking mechanism can be pressed against a connecting pipe flange on the injection vessel; when the docking is started, the hydraulic system drives the oil cylinder to move, and drives the locking mechanism to move to press the connecting pipe flange on the injection ship, so that docking of the injection ship and the injection ship is completed; after LNG conveying operation is finished, the hydraulic system drives the oil cylinder to move, and drives the locking mechanism to move so as to loosen the connecting pipe flange, so that the connecting pipe flange of the hydraulic quick connecting device is separated, and separation operation is realized.
Further, in one embodiment, the base 5 is provided with an oil cylinder support lug 6 for connecting with a locking mechanism.
Further, in one embodiment, the locking mechanism comprises a plurality of groups of oil cylinders 8 and clamping claws 10 which are uniformly distributed on the outer side of the pipeline 2, and the oil cylinders 8 comprise cylinder barrels 8-1 and piston rods 8-2; one side of the cylinder barrel 8-1 is movably connected with the cylinder support lug 6 through a cylinder lower pin shaft 11, one end of the piston rod 8-2 extending out of the cylinder barrel 8-1 is connected with one end of the claw 10 through a cylinder upper pin shaft 9, and the other end of the claw 10 is movably connected with the ship flange 1 through a claw pin shaft 7;
when the docking is started, the hydraulic system drives the oil cylinders 8 to synchronously move, the piston rods 8-2 extend out of the cylinder barrels 8-1 and drive one ends of the clamping claws 10 to rotate, so that the other ends of the clamping claws can press a connecting pipe flange on the injection ship, and the docking of the injection ship and the injection ship is completed; after LNG conveying operation is finished, the hydraulic system drives the piston rod 8-2 to move into the cylinder barrel 8-1 to drive the claw 10 to rotate, and the quick connecting device is gradually separated from the connecting pipe flange, so that separation operation is realized.
Further, in one embodiment, the outer ring of the ship receiving flange 1 is uniformly provided with a plurality of pairs of claw lugs 4, and the other ends of the claws 10 are movably connected with the claw lugs 4 through claw pin shafts 7.
Further, in one embodiment, all cylinders 8 of the locking mechanism are connected to a hydraulic system.
Before the ship carries out LNG transportation operation, a hose system is delivered to a target ship by using a hose crane, and a worker controls a hydraulic system to control QCDs to carry out docking, so that LNG transportation between two ships is realized. When in butt joint, the QCDs and the connecting pipe flange are positioned at a close distance, and the hydraulic system controls the piston rod of the oil cylinder to move, so that the clamping jaws are driven to rotate, the connecting pipe flange is pressed, and the butt joint operation is realized. After LNG transport operation is finished, the hydraulic system controls the oil cylinder piston rod to retract, drives the claw to rotate and loosen the connecting pipe flange, and the QCTC and the connecting pipe flange are gradually separated to realize separation operation.
This novel hydraulic pressure quick connect device simple structure, simple operation can improve docking efficiency by a wide margin.
The foregoing has outlined and described the basic principles, features, and advantages of the present utility model. It will be understood by those skilled in the art that the foregoing embodiments are not intended to limit the utility model, and the above embodiments and descriptions are meant to be illustrative only of the principles of the utility model, and that various modifications, equivalent substitutions, improvements, etc. may be made within the spirit and scope of the utility model without departing from the spirit and scope of the utility model.
Claims (8)
1. The hydraulic quick connecting device suitable for the LNG ship hose conveying system is characterized by comprising a ship receiving flange (1), a pipeline (2), a standard flange (3), an oil cylinder (8), a base (5) and a locking mechanism, wherein the locking mechanism is used for locking the ship receiving flange (1) and a connecting pipe flange on a filling ship to realize the butt joint of the filling ship and the filling ship; one end of the pipeline (2) is fixedly connected with the ship connecting flange (1), the other end of the pipeline is fixedly connected with the standard flange (3), and the standard flange (3) is used for being connected with the flange at the front end of the hose; the locking mechanism is arranged outside the pipeline (2), one end of the locking mechanism is connected with the base (5), and the other end of the locking mechanism can be pressed against the connecting pipe flange on the injection vessel.
2. The hydraulic quick connection device suitable for LNG ship hose transfer systems according to claim 1, characterized in that the base (5) is provided with cylinder lugs (6) for connecting locking means.
3. The hydraulic quick connection device suitable for the hose conveying system of the LNG ship according to claim 2, wherein the locking mechanism comprises a plurality of groups of oil cylinders (8) and clamping claws (10) which are uniformly distributed on the outer side of the pipeline (2), and the oil cylinders (8) comprise cylinder barrels (8-1) and piston rods (8-2); one side of the cylinder barrel (8-1) is movably connected with an oil cylinder supporting lug (6), one end of the piston rod (8-2) extending out of the cylinder barrel (8-1) is movably connected with one end of the claw (10), and the other end of the claw (10) is movably connected with the ship connecting flange (1).
4. A hydraulic quick connection device suitable for a hose transfer system for LNG ships according to claim 3, characterized in that one side of the cylinder (8-1) is movably connected with the cylinder lugs (6) specifically by means of a cylinder lower pin (11).
5. A hydraulic quick connection device suitable for LNG ship hose transfer systems according to claim 3, characterized in that the other end of the claw (10) is movably connected to the ship flange (1) in particular by means of a claw pin (7).
6. A hydraulic quick connection device suitable for a hose transfer system for LNG ships according to claim 3, characterized in that the end of the piston rod (8-2) extending out of the cylinder (8-1) is connected to one end of the claw (10) in particular by means of a pin (9) on the cylinder.
7. The hydraulic quick connecting device suitable for the LNG ship hose conveying system according to claim 5, wherein a plurality of pairs of claw lugs (4) are uniformly arranged on the outer ring of the ship receiving flange (1), and the other ends of the claws (10) are movably connected with the claw lugs (4) through claw pin shafts (7).
8. A hydraulic quick connect device for LNG ship hose transfer systems according to claim 3, characterized in that all cylinders (8) of the locking mechanism are connected to one hydraulic system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320535285.3U CN219639730U (en) | 2023-03-20 | 2023-03-20 | Hydraulic quick connecting device suitable for LNG ship hose conveying system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320535285.3U CN219639730U (en) | 2023-03-20 | 2023-03-20 | Hydraulic quick connecting device suitable for LNG ship hose conveying system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219639730U true CN219639730U (en) | 2023-09-05 |
Family
ID=87808742
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320535285.3U Active CN219639730U (en) | 2023-03-20 | 2023-03-20 | Hydraulic quick connecting device suitable for LNG ship hose conveying system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219639730U (en) |
-
2023
- 2023-03-20 CN CN202320535285.3U patent/CN219639730U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant |