CN108506725B - Movable liquefied natural gas discharging platform device and using method thereof - Google Patents
Movable liquefied natural gas discharging platform device and using method thereof Download PDFInfo
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- CN108506725B CN108506725B CN201810248617.3A CN201810248617A CN108506725B CN 108506725 B CN108506725 B CN 108506725B CN 201810248617 A CN201810248617 A CN 201810248617A CN 108506725 B CN108506725 B CN 108506725B
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- platform
- natural gas
- liquefied natural
- floating platform
- arm
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C7/00—Methods or apparatus for discharging liquefied, solidified, or compressed gases from pressure vessels, not covered by another subclass
- F17C7/02—Discharging liquefied gases
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C13/00—Details of vessels or of the filling or discharging of vessels
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2221/00—Handled fluid, in particular type of fluid
- F17C2221/03—Mixtures
- F17C2221/032—Hydrocarbons
- F17C2221/033—Methane, e.g. natural gas, CNG, LNG, GNL, GNC, PLNG
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2270/00—Applications
- F17C2270/01—Applications for fluid transport or storage
- F17C2270/0102—Applications for fluid transport or storage on or in the water
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Filling Or Discharging Of Gas Storage Vessels (AREA)
- Ship Loading And Unloading (AREA)
- Loading And Unloading Of Fuel Tanks Or Ships (AREA)
Abstract
A movable liquefied natural gas unloading platform device and a using method thereof belong to the technical field of port and coastal engineering and ship and ocean engineering. The device is located the natural gas wharf, and it includes unloading arm floating platform, a pond, a plurality of connecting plate. When the discharging arm floating platform is about to move, the connecting plate of the discharging arm floating platform in the moving direction is lifted by a small crane and placed on the working platform. The discharge arm floating platform is pulled to the next position by a small crane through a cable. The previously lifted connector plate is then placed in the vacant position by a small crane, thus completing the transfer of the discharge arm floating platform from one position to another. The device does not occupy the usable floor area of the wharf, enlarges the interface range of the liquefied natural gas transport ship and the discharge arm, improves the docking capacity of the wharf, and improves the compatibility of the wharf.
Description
Technical Field
The invention relates to a movable liquefied natural gas unloading platform device and a using method thereof, belonging to the technical field of port and coastal engineering and ship and ocean engineering.
Background
The liquefied natural gas wharf is a wharf specially used for unloading an liquefied natural gas transport ship. The liquefied natural gas wharf is provided with a discharge arm, a mooring pier, a docking pier, a boarding ladder and the like. The unloading arm is special for the liquefied natural gas wharf and is used for connecting an LNG manifold interface on a ship with an LNG loading and unloading pipeline on the wharf to finish unloading work of LNG from the liquefied natural gas transport ship to the wharf receiving station.
Since the loading capacity of lng carriers is generally between 15000m and 286000m, vessels with different loading and unloading capacities have different main dimensions. This allows the lng terminal to have a range of compatibility with ships. Because general discharge arm all fixes on the wharf, and self only has very little displacement range, this makes liquefied natural gas boats and ships in order to let manifold interface and discharge arm interface be connected, and the boats and ships can only be in a fixed position, and this makes a lot of ship types can not satisfy the requirement at mooring compatibility, leads to liquefied natural gas wharf can only be compatible to specific ship type.
Disclosure of Invention
In order to overcome the problems in the prior art, the invention provides a movable liquefied natural gas unloading platform device. The discharging arm originally fixed in place is placed on the discharging arm floating platform, so that the discharging arm can move in the water pool, and the connecting plate is placed above the water pool, so that the working personnel, the small crane and the boarding ladder can move on the discharging arm floating platform. Make liquefied natural gas transport ship's berth at the pier become portable like this, improve and berth the ability, improve the ship bank compatibility ability, let the pier can compatible multiple ship type, improve the return on investment rate of pier to do not occupy the extra usable floor area of pier.
The technical scheme adopted by the invention is as follows: a movable liquefied natural gas unloading platform device comprises a working platform, a plurality of mooring piers, a shore-connecting approach bridge and a plurality of berth piers, and further comprises an unloading arm floating platform, a water tank and a plurality of connecting plates, wherein the water tank is arranged on one side of a berth of the working platform, the unloading arm floating platform is arranged in the water tank in a floating state, a plurality of unloading arms and a control unit are arranged on an upper deck of the unloading arm floating platform, and the bottom of the unloading arm floating platform is respectively connected with a floating block for providing buoyancy through 4 pillars; an immersed pump for adjusting the floating state of the floating platform of the discharging arm is arranged in the floating block, and the immersed pump injects water and discharges water into the floating block through a water pipe; and the control unit controls the water injection and drainage of the immersed pump and the movement of the discharge arm, so that a second liquefied natural gas pipeline on the floating platform of the discharge arm is butted with a manifold interface on the liquefied natural gas transport ship.
A connecting plate is placed on the water pool, the connecting plate is fixed on the working platform through a groove, the small crane lifts the connecting plate through a circular ring, one end of a first flange interface on the working platform is connected with the low-temperature hose, the other end of the low-temperature hose is connected to a second flange interface on the floating platform of the discharging arm, and the other end of the first flange interface is connected with a first liquefied natural gas pipeline; a plurality of first flange interfaces arranged on the working platform are in butt joint with second flange interfaces on the discharging arm floating platform at a plurality of positions through low-temperature hoses.
The working platform is provided with an underground pipeline, and seawater is injected into the water pool through a water injection pipeline; the liquefied natural gas is transmitted to a second liquefied natural gas pipeline through the discharging arm, and then is transmitted to the land for storage through a second flange interface, a low-temperature hose, a first flange interface and a pipe gallery below the working platform by a shore connection approach bridge.
The use method of the movable liquefied natural gas unloading platform device comprises the following steps:
a. calculating a proper docking position of the liquefied natural gas transport ship according to the mooring software, and ensuring that the pressure value of the docking pier and the tension value of the mooring rope are within an allowable range;
b. moving the discharging arm floating platform according to the proper parking position of the liquefied natural gas transport ship, hoisting a connecting plate in the moving direction of the discharging arm floating platform by using a small crane, placing the connecting plate on a working platform, pulling the discharging arm floating platform to the next position by using the small crane through a cable, and placing the connecting plate on the vacant position by using the small crane;
c. the cable hook on the discharging arm floating platform and the cable hook (16) on the working platform are connected through a cable, a first fender on the discharging arm floating platform is in contact with the working platform, and a second fender is in contact with the connecting plate;
d. liquefied natural gas passes through the manifold interface on the liquefied natural gas transport ship through unloading arm (14), unloads the piping lane on arm floating platform and the work platform, by connecting the bank bridge approach to transport to land and store.
The beneficial effects of the invention are: this kind of portable platform device of unloading is through preventing the arm of unloading on the arm floating platform that unloads, and the arm floating platform that unloads can remove in the pond, has put the connecting plate above the pond, makes the device can not occupy the extra usable floor area of pier like this. This portable platform device of unloading makes the berth of liquefied natural gas transport ship at the pier become portable, improves the ability of berthing, improves ship bank compatibility ability, lets the pier can compatible multiple ship type, improves the investment return rate of pier.
Drawings
Fig. 1 is a diagram of a lng terminal arrangement.
Figure 2 is a movable discharge platform assembly.
Fig. 3 is a view a-a in fig. 2.
Fig. 4 is a view B-B in fig. 2.
Fig. 5 is a view C-C in fig. 2.
Fig. 6 is a view D-D in fig. 3.
In the figure: 1. discharge arm floating platform, 2, working platform, 3, mooring pier, 4, shore-connecting approach bridge, 5, docking pier, 6, liquefied natural gas transport ship, 7, boarding ladder, 8, platform control room, 9, pump, 10, manifold interface, 11, cable, 12, second fender, 13, water pool, 14, discharge arm, 15, first fender, 16, mooring hook, 17, connecting plate, 18, groove, 19, control unit, 20, first flange interface, 21, first liquefied natural gas pipeline, 22, low-temperature hose, 23, water filling port, 24, pillar, 25, floating block, 26, immersed pump, 27, water pipe, 28, second flange interface, 29, pipe gallery, 30, second liquefied natural gas pipeline, 31, upper deck, 32, ring and 33 water filling pipeline.
Detailed Description
The patented system of the invention is further described below with reference to the drawings.
Fig. 1, 2 and 3 show an arrangement of a lng terminal. The movable liquefied natural gas discharging platform device comprises a working platform 2, 4 mooring piers 3, a shore-connecting approach bridge 4, 4 ship-berthing piers 5, a discharging arm floating platform 1, a water tank 13 and a plurality of connecting plates 17. A water pool 13 is arranged at one side of the docking ship of the working platform 2, the discharging arm floating platform 1 is arranged in the water pool 13 in a floating state, a plurality of discharging arms 14 and control units 19 are arranged on an upper deck 31 of the discharging arm floating platform 1, and the bottom of the discharging arm floating platform 1 is respectively connected with a floating block 25 for providing buoyancy through 4 struts 24; an immersed pump 26 for adjusting the floating state of the floating platform 1 of the discharge arm is arranged in the floating block 25, and the immersed pump 26 injects water and discharges water into the floating block 25 through a water pipe 27; the control unit 19 controls the filling and draining of the immersed pump 26 and the movement of the discharge arm 14 so that the second lng pipeline 30 on the discharge arm floating platform 1 is in butt joint with the manifold interface 10 on the lng carrier 6.
There are 4 discharge arms 14 on the discharge arm floating platform 1. When the discharging arm floating platform 1 is about to move left and right, the connecting plate 17 in the moving direction of the discharging arm floating platform 1 is lifted by a small crane and placed on the working platform. The discharge arm floating platform 1 is pulled to the next position by means of a small crane via the cable 11. The previously lifted connection plate 17 is placed in the vacant position by a small crane. Connect the mooring rope hook 16 on the arm floating platform 1 of unloading and the mooring rope hook 16 on the work platform 2 through hawser 8, the first fender 15 on the arm floating platform 1 of unloading contacts with work platform 2, the second fender 12 contacts with connecting plate 17, play the fixed action to the arm floating platform 1 of unloading, accomplished the removal that makes the arm floating platform 1 of unloading from a position to another position like this, do not occupy the extra usable floor area of pier at this in-process, and enlarged the interface scope of liquefied natural gas transport ship and unloading arm, the ability of berthing of pier has been improved, the compatibility of pier has been improved.
The attachment plate 17 is secured to the platform by the groove 18 and a small crane can lift the attachment plate 17 by means of the ring 32. One end of the first flange interface 20 of the working platform 2 is connected with the low-temperature hose 22 and is butted with the second flange interface 28 of the discharging arm floating platform 1, and the other end of the first flange interface is connected with the first liquefied natural gas pipeline 21, so that the liquefied natural gas transmission process is completed. The plurality of first flange interfaces 20 on the working platform 2 enable the discharge arm floating platform 1 to complete the butt joint of the flange interfaces at a plurality of positions. Water is injected into the water tank through the water injection port 23 by the pump 9.
Fig. 4 and 5 show a structural view of the discharge arm floating platform 1. The discharge arm 14 and the control unit 19 are placed on the upper deck 31 of the discharge arm floating platform 1. The bottom of the discharge arm floating platform 1 is provided with 4 struts 24, and each strut 24 is connected with a floating block 25 to provide buoyancy so that the discharge arm floating platform 1 can float above the water surface. Each floating block 25 is provided with an immersed pump 26, and water can be filled into the floating block and drained through a water pipe 27, so that the floating posture of the floating platform 1 of the discharge arm can be adjusted. Control unit 19 may control the movement of the discharge arm and control the filling and draining of the submersible pump 26.
Figure 6 shows a view of the underground piping of the work platform and the discharge arm floating platform. The seawater is supplied to the water reservoir 13 through a water supply line 33. On the discharge arm floating platform 1, the liquefied natural gas is transmitted to a second liquefied natural gas pipeline 30 through the discharge arm 14, is connected to the first flange interface 20 through a second flange interface 28 and a low-temperature hose 22, and is transmitted to the land for storage through a pipe gallery 29 below the working platform 2 by a shore access bridge. The underground pipelines are all installed underground, and the use of other equipment of the platform cannot be influenced.
The use method of the movable liquefied natural gas unloading platform device comprises the following steps:
a. calculating a proper parking position of the liquefied natural gas transport ship 6 according to mooring software, and ensuring that the pressure value of the berthing pier 5 and the tension value of the mooring rope 11 are within an allowable range;
b. moving the discharging arm floating platform 1 according to a proper parking position of the liquefied natural gas transport ship 6, hoisting a connecting plate 17 in the moving direction of the discharging arm floating platform 1 by using a small crane, placing the connecting plate on the working platform 2, pulling the discharging arm floating platform 1 to the next position by using the small crane through a cable 11, and placing the connecting plate 17 at the vacant position by using the small crane;
c. a mooring rope 8 is used for connecting a mooring rope hook 16 on the discharging arm floating platform 1 and a mooring rope hook 16 on the working platform 2, a first fender 15 on the discharging arm floating platform 1 is in contact with the working platform 2, and a second fender 12) is in contact with a connecting plate 17;
d. liquefied natural gas is transported to land for storage through the pipeline gallery 29 on the discharge arm 14, the discharge arm floating platform 1 and the working platform 2 through the manifold interface 10 on the liquefied natural gas transport ship 6 by the landing approach bridge 4.
Claims (4)
1. The utility model provides a portable liquefied natural gas platform device of unloading, it includes a work platform (2), a plurality of mooring rope mounds (3), connects bank approach bridge (4) and a plurality of pier (5) by ship, characterized by: the floating platform is characterized by further comprising a discharging arm floating platform (1), a water pool (13) and a plurality of connecting plates (17), wherein the water pool (13) is arranged on one side of a docking ship of the working platform (2), the discharging arm floating platform (1) is arranged in the water pool (13) in a floating state, a plurality of discharging arms (14) and control units (19) are arranged on an upper deck (31) of the discharging arm floating platform (1), and the bottom of the discharging arm floating platform (1) is respectively connected with a floating block (25) for providing buoyancy through 4 struts (24); an immersed pump (26) for adjusting the floating state of the floating platform (1) of the discharging arm is arranged in the floating block (25), and the immersed pump (26) injects water and discharges water into the floating block (25) through a water pipe (27); and the control unit (19) controls water injection and drainage of the immersed pump (26) and movement of the discharge arm (14) so that a second liquefied natural gas pipeline (30) on the discharge arm floating platform (1) is butted with a manifold interface (10) on the liquefied natural gas transport ship (6).
2. The mobile liquefied natural gas unloading platform device as claimed in claim 1, wherein: a connecting plate (17) is placed on the water pool (13), the connecting plate (17) is fixed on the working platform (2) through a groove (18), a small crane lifts the connecting plate (17) through a circular ring (32), one end of a first flange interface (20) on the working platform (2) is connected with a low-temperature hose (22), the other end of the low-temperature hose (22) is connected to a second flange interface (28) on the discharging arm floating platform (1), and the other end of the first flange interface (20) is connected with a first liquefied natural gas pipeline (21); a plurality of first flange interfaces (20) arranged on the working platform (2) are butted with second flange interfaces (28) on the discharging arm floating platform (1) at a plurality of positions through low-temperature hoses (22).
3. The mobile liquefied natural gas unloading platform device as claimed in claim 1, wherein: the working platform (2) is provided with an underground pipeline, and seawater is injected into the water pool (13) through a water injection pipeline (33); liquefied natural gas transmits second liquefied natural gas pipeline (30) through unloading arm (14), again through second flange interface (28), cryogenic hose (22), first flange interface (20) and working platform (2) below piping lane (29), by connecting the bank approach bridge with liquefied natural gas transmission to land storage.
4. The use method of the movable liquefied natural gas unloading platform device according to claim 1, wherein the method comprises the following steps: the method comprises the following steps:
a. calculating a proper parking position of the liquefied natural gas transport ship (6) according to mooring software, and ensuring that the pressure value of the berthing pier (5) and the tension value of the mooring rope (11) are within an allowable range;
b. moving the discharging arm floating platform (1) according to the proper parking position of the liquefied natural gas transport ship (6), hoisting a connecting plate (17) in the moving direction of the discharging arm floating platform (1) by using a small crane, placing the connecting plate on the working platform (2), pulling the discharging arm floating platform (1) to the next position by using the small crane through a cable (11), and placing the connecting plate (17) on the vacant position by using the small crane;
c. a mooring rope (8) is connected with a mooring hook (16) on the discharging arm floating platform (1) and a mooring hook (16) on the working platform (2), a first fender (15) on the discharging arm floating platform (1) is in contact with the working platform (2), and a second fender (12) is in contact with a connecting plate (17);
d. liquefied natural gas is transported to land for storage through a pipe gallery (29) on a discharge arm (14), a discharge arm floating platform (1) and a working platform (2) through a manifold interface (10) on a liquefied natural gas transport ship (6) by a shore access bridge (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810248617.3A CN108506725B (en) | 2018-03-24 | 2018-03-24 | Movable liquefied natural gas discharging platform device and using method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810248617.3A CN108506725B (en) | 2018-03-24 | 2018-03-24 | Movable liquefied natural gas discharging platform device and using method thereof |
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| Publication Number | Publication Date |
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| CN108506725A CN108506725A (en) | 2018-09-07 |
| CN108506725B true CN108506725B (en) | 2020-01-14 |
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| CN201810248617.3A Active CN108506725B (en) | 2018-03-24 | 2018-03-24 | Movable liquefied natural gas discharging platform device and using method thereof |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202824052U (en) * | 2012-07-05 | 2013-03-27 | 蔡企胜 | Harmful gas eliminating mechanism of original ecology treatment device for sewage in rivers and lakes |
| EP2726676A1 (en) * | 2011-06-30 | 2014-05-07 | Gravi Float AS | Plant for storage and unloading hydrocarbon and also a method thereof |
| CN107061987A (en) * | 2017-05-31 | 2017-08-18 | 中海石油(中国)有限公司 | A kind of portable LNG receiving stations storage filling platform |
| CN107152007A (en) * | 2017-05-19 | 2017-09-12 | 大连理工大学 | Formula liquefied natural gas harbour is moored in two-way stop |
| FR3035703B1 (en) * | 2015-04-28 | 2018-03-02 | Gdf Suez | DEVICE AND METHOD FOR DELIVERING LIQUEFIED NATURAL GAS |
| CN107829402A (en) * | 2017-09-20 | 2018-03-23 | 青岛金海嘉华旅游有限公司 | A kind of dock type harbour of liftable movement |
-
2018
- 2018-03-24 CN CN201810248617.3A patent/CN108506725B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2726676A1 (en) * | 2011-06-30 | 2014-05-07 | Gravi Float AS | Plant for storage and unloading hydrocarbon and also a method thereof |
| CN202824052U (en) * | 2012-07-05 | 2013-03-27 | 蔡企胜 | Harmful gas eliminating mechanism of original ecology treatment device for sewage in rivers and lakes |
| FR3035703B1 (en) * | 2015-04-28 | 2018-03-02 | Gdf Suez | DEVICE AND METHOD FOR DELIVERING LIQUEFIED NATURAL GAS |
| CN107152007A (en) * | 2017-05-19 | 2017-09-12 | 大连理工大学 | Formula liquefied natural gas harbour is moored in two-way stop |
| CN107061987A (en) * | 2017-05-31 | 2017-08-18 | 中海石油(中国)有限公司 | A kind of portable LNG receiving stations storage filling platform |
| CN107829402A (en) * | 2017-09-20 | 2018-03-23 | 青岛金海嘉华旅游有限公司 | A kind of dock type harbour of liftable movement |
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| CN108506725A (en) | 2018-09-07 |
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