CN102050208B - LNG storage and transportation system and floating type receiving platform thereof - Google Patents

LNG storage and transportation system and floating type receiving platform thereof Download PDF

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Publication number
CN102050208B
CN102050208B CN2010105499408A CN201010549940A CN102050208B CN 102050208 B CN102050208 B CN 102050208B CN 2010105499408 A CN2010105499408 A CN 2010105499408A CN 201010549940 A CN201010549940 A CN 201010549940A CN 102050208 B CN102050208 B CN 102050208B
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China
Prior art keywords
platform
lng
storing
gasify
lifting
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CN2010105499408A
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Chinese (zh)
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CN102050208A (en
Inventor
吴树凯
陈浩军
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YIZI OCEAN ENGINEERING TECHNOLOGY (BEIJING) Co Ltd
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YIZI OCEAN ENGINEERING TECHNOLOGY (BEIJING) Co Ltd
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Priority to CN2010105499408A priority Critical patent/CN102050208B/en
Publication of CN102050208A publication Critical patent/CN102050208A/en
Priority to PCT/CN2011/001916 priority patent/WO2012065366A1/en
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    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02B—HYDRAULIC ENGINEERING
    • E02B17/00—Artificial islands mounted on piles or like supports, e.g. platforms on raisable legs or offshore constructions; Construction methods therefor
    • E02B17/02—Artificial islands mounted on piles or like supports, e.g. platforms on raisable legs or offshore constructions; Construction methods therefor placed by lowering the supporting construction to the bottom, e.g. with subsequent fixing thereto
    • E02B17/021—Artificial islands mounted on piles or like supports, e.g. platforms on raisable legs or offshore constructions; Construction methods therefor placed by lowering the supporting construction to the bottom, e.g. with subsequent fixing thereto with relative movement between supporting construction and platform
    • 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
    • F17C7/04—Discharging liquefied gases with change of state, e.g. vaporisation
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02B—HYDRAULIC ENGINEERING
    • E02B17/00—Artificial islands mounted on piles or like supports, e.g. platforms on raisable legs or offshore constructions; Construction methods therefor
    • E02B2017/0056—Platforms with supporting legs
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02B—HYDRAULIC ENGINEERING
    • E02B17/00—Artificial islands mounted on piles or like supports, e.g. platforms on raisable legs or offshore constructions; Construction methods therefor
    • E02B2017/0056—Platforms with supporting legs
    • E02B2017/0073—Details of sea bottom engaging footing
    • E02B2017/0082—Spudcans, skirts or extended feet
    • 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
    • F17C2223/00—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel
    • F17C2223/01—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel characterised by the phase
    • F17C2223/0146—Two-phase
    • F17C2223/0153—Liquefied gas, e.g. LPG, GPL
    • F17C2223/0161—Liquefied gas, e.g. LPG, GPL cryogenic, e.g. LNG, GNL, 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
    • F17C2223/00—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel
    • F17C2223/03—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel characterised by the pressure level
    • F17C2223/033—Small pressure, e.g. for liquefied gas
    • 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
    • F17C2225/00—Handled fluid after transfer, i.e. state of fluid after transfer from the vessel
    • F17C2225/01—Handled fluid after transfer, i.e. state of fluid after transfer from the vessel characterised by the phase
    • F17C2225/0107—Single phase
    • F17C2225/0123—Single phase gaseous, e.g. CNG, GNC
    • 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
    • F17C2225/00—Handled fluid after transfer, i.e. state of fluid after transfer from the vessel
    • F17C2225/03—Handled fluid after transfer, i.e. state of fluid after transfer from the vessel characterised by the pressure level
    • F17C2225/036—Very high pressure, i.e. above 80 bars
    • 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
    • F17C2265/00—Effects achieved by gas storage or gas handling
    • F17C2265/05—Regasification
    • 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
    • F17C2270/0105—Ships
    • 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
    • F17C2270/0118—Offshore
    • F17C2270/0121—Platforms
    • 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
    • F17C2270/0118—Offshore
    • F17C2270/0128—Storage in depth

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Filling Or Discharging Of Gas Storage Vessels (AREA)

Abstract

The invention provides an LNG (Liquefied Natural Gas) storage and transportation system comprising an LNG receiving platform, an LNG transmission system, a terminal maritime work installation, a discharge system and an LNG transport ship. The LNG receiving platform is a floating type and movable, and includes a regasifiction platform and an LNG storage platform integrated together or separated from each other; a regasifiction system is arranged on the regasifiction platform; an LNG storage system is arranged on the LNG storage platform, and a platform lifting system is arranged in the regasifiction platform and/or the LNG storage platform. The storage and transportation system provided by the invention is fixed during production, and is movable during installation, peak shaving and maintenance, and can be combined to meet the needs in water conditions and operation conditions.

Description

A kind of LNG Storage, Transport system and floating receiving platform thereof
Technical field
The present invention relates to liquefied natural gas (LNG) storaging and transport technology, more specifically, the present invention relates to a kind of LNG Storage, Transport system and floating receiving platform thereof.
Background technology
The long-distance transportation natural fuels, particularly by the water route transport natural gas, at first, be on the source of the gas ground with liquefying power or liquefaction plant be liquefied natural gas (LNG) with conversion of natural gas, by LNG carrier (LNGC) it is transported to Central Terminal Station terminal or LNG receiving terminal again.Through after the gasification again, be transported to the end user for the LNG of receiving terminal.Usually, the LNG receiving terminal be located at land or the water surface on, be located at the fixed terminal that is called as of land, be located at and be called as the floating terminal on the water surface.
Fixed terminal for the land, normally the LNG carrier rests in quayside, and the receiving terminal of plugging into is unloaded to LNG on the LNG storage facilities by uninstalling system, by transmission system LNG is delivered to again gasification installation again, through after the gasification natural fuels being sent to the user again.
For the floating receiving terminal, commonly used mainly contains two kinds, and a kind of is to have storage and a hull platform (FSRU) of gasification function again, and another kind is to have transportation, store and the ship of gasification function (SRV) again.These two kinds of floating LNG receiving terminals all with storage function and again gasification function be integrated on the hull.These two kinds of receiving terminals are buoyancy aid, can because of the stormy waves motion, cause LNG unloading difficulty and LNG carrier alongside difficulty.When LNG carrier alongside FSRU or SRV, larger than LNG carrier alongside fixed quay difficulty because they all are floating conditions, this environmental conditions during to the alongside of LNG carrier is had higher requirement.
The locate mode of floating LNG receiving terminal commonly used has single-point mooring and anchor chain type mooring.The hull platform of single-point mooring in the poor zone of stormy waves condition, can rotate round single point mooring's control tower, has taken larger water surface area.The hull platform of anchor chain type mooring, system's location difficulty when shallow water, the anchor chain trace has covered larger water surface area, is unfavorable for the navigation of passing ships, particularly is not suitable for the busy rivers in navigation channel, lake.
Another kind of LNG receiving terminal fixedly is built in the seabed, be called the marine LNG receiving terminal (GBS) of seat bottom type, although alongside and unloading hard problem that this terminal can avoid single-point type or anchor chain type mooring to bring, but to the depth of water, the submarine geology condition is had higher requirement, and can not move to other place, construction and maintenance cost are relatively high.
Along with the continuous increase of city to the natural gas motorcar demand, the LNG receiving terminal need to be arranged on shallow sea, rivers, lake or the mouth of the river place of near cities.These waters are compared with open marine site, though stormy waves stream condition is better, water quality is relatively poor, and the morning and evening tides drop is large, water surface area is less, and the depth of water is more shallow, and hull size is limited, the navigation channel transportation is busy, and fire safety requires high, and existing receiving platform is difficult to satisfy above-mentioned requirements.
Summary of the invention
For fear of the various defectives of above-mentioned LNG storing and transporting system and LNG receiving terminal, the present invention proposes a kind of LNG Storage, Transport system and floating receiving platform thereof.
According to an aspect of the present invention, a kind of LNG storing and transporting system is provided, comprise: LNG receiving platform, LNG transmission system, uninstalling system, terminal maritime works's facility and LNG carrier, described LNG receiving platform is floating and is movably, described LNG receiving platform comprises one or the again gasification platform that separates and LNG storing platform, be furnished with again gasification system on the described platform that gasifies again, be furnished with the LNG storage system on the described LNG storing platform, be furnished with the lifting platform system in gasify again platform and/or the LNG storing platform.
According to a further aspect in the invention, a kind of floating LNG receiving platform is provided, described LNG receiving platform is movably, described LNG receiving platform comprises one or the again gasification platform that separates and LNG storing platform, gasify again and be furnished with again gasification system on the platform, be furnished with the LNG storage system on the LNG storing platform, be furnished with the lifting platform system in gasify again platform and/or the LNG storing platform.
Storing and transporting system of the present invention has stationarity when operation is produced, have mobility when installation, peak regulation and maintenance etc., has composability in conjunction with water area condition simultaneously.LNG storing and transporting system of the present invention and floating receiving platform are applicable to the waters near shallow sea, rivers, lake or the mouth of the river place of near cities.
Description of drawings
Fig. 1 illustrates the schematic diagram according to LNG storing and transporting system of the present invention;
Fig. 2 is that spud leg supports the jack up platform schematic diagram that gasifies again;
Fig. 3 is the ballast semisubmersible platform schematic diagram that gasifies again;
Fig. 4 is the enclosing sunk type platform schematic diagram that gasifies again.
The specific embodiment
Below in conjunction with the drawings and specific embodiments a kind of LNG Storage, Transport system provided by the invention and floating receiving platform thereof are described in detail.
Fig. 1 illustrates LNG floating storing and transporting system according to an embodiment of the invention.Comprise that LNG floating storing and transporting system comprises maritime works's facility, LNG uninstalling system, LNG carrier and the shore facilities of LNG receiving platform, LNG transmission system, uninstalling system, LNG receiving platform.This storing and transporting system also comprises necessary setting on the bank.Wherein, the LNG receiving platform comprises one or the again gasification platform that separates and LNG storing platform, gasifying is furnished with again gasification system on the platform again, is furnished with the LNG storage system on the LNG storing platform, and the lifting platform system layout is in gasify platform and/or LNG storing platform again.
Below further describe the composition 26S Proteasome Structure and Function of this transmission system in detail with reference to figure 1, wherein, gasification system 1 (Regasification System) comprises gasifier and accessory structure thereof again, be arranged on the platform 2 that gasifies again (Regasification Vessel), LNG and with the natural fuels output of gasification is used for gasifying again.
The platform 2 (Regasification Vessel) that gasifies again is be used to the hull platform that carries again gasification system 1, has single casing or similar form, can be from boat or dumb.
Lifting platform system 3 (VEAS) be used for to change platform 2 and/or LNG storing platform 5 vertical position with respect to the bottom or the water surface that gasifies again.The lifting platform Adjustment System includes but not limited to: (1) in order to adjust the platform 2/LNG storing platform 5 that gasifies again with respect to the spud leg support type of the bottom or spud leg vertical position, comprises hydraulic lifting type, gear climb type, pulley is drawing or the combination of these modes; (2) prefabricated maritime works's Infrastructure (liftable or not lifting), by adjusting this facility, and/or adjust drinking water or the lifting platform 2/LNG storage system that gasifies again by ballast pumping system (comprising direct constant weight), support the platform 2/LNG storing platform that gasifies again; (3) remain on the relatively static of gasification platform 2 vertical positions by enclosing structure (comprising dry dock or similar facility), below describe in detail by Fig. 2-4.
LNG transmission system 4 (LNG Transfer System) is arranged between LNG storing platform and the LNG receiving terminal maritime works facility 6, and gasifies between platform 2 and the LNG storing platform 5 again, is used for the gas that transmits betwixt blue gas or gasify.
LNG storing platform 5 (LNG Storage Vessel) is used for carrying LNG storage system, and LNG passes to the platform 2 that gasifies again from the LNG storing platform through the LNG transmission system, gasifies again.In receiving platform, storing platform and the platform that gasifies again can separate, also can integrator.It is movably that the LNG storing platform is analogous to the platform that gasifies again, can then install at water transport to scene in factory process, can transport it again as required.The LNG storage facilities can be built and be installed on the bank, and perhaps as the part of land LNG receiving terminal maritime works facility, but this does not think the LNG storing platform.
Terminal maritime works's facility 6 (Terminal Marine Facilities) is often referred to fixing works and facility, is used for providing the water interface, supports pipeline, LNG uninstalling system, LNG transmission system and stops LNG carrier 8.
LNG uninstalling system 7 (LNG Unloading System) is used for unloading LNG, the LNG uninstalling system is attached on the terminal maritime works facility 6, through being located at cryogenic piping and the LNG transmission system 4 on the terminal maritime works facility 6, LNG is unloaded on the LNG storing platform 5 from carrier 8.
LNG carrier 8 (Shuttle LNG Carrier) refers to be loaded with LNG and travels to and fro between carrier between receiving terminal and the LNG source, usually is docked on the harbour as the part of terminal maritime works facility 6.
Shore facilities (Onshore Facilities) refer to support LNG receive, again gasification and natural fuels outward defeated on the bank or extend to system and facility in the offshore water.
Gasify platform when the production and operation again, have relative stationarity, relatively-stationary way of realization mainly comprises the spud leg support type, ballast semisubmersible, enclosing locate mode.Same, this fixed form can also be applicable to the LNG storing platform.Namely, when gasifying again platform and the two one of LNG storing platform, can have stationarity and movability as the receiving platform of its one.
Fig. 2 illustrates spud leg and supports the fixing again gasification platform of jack up, and in the left part, the platform that gasifies again is in floating condition among the figure, by being installed in the jacking system on the hull platform, spud leg is promoted, and whole platform swims on the water surface.During the right side is divided among the figure, the again gasification platform that is in the fixed pedestal state is shown, by being installed in the jacking system on the hull platform, makes the spud leg supporting descending at the bottom, the platform lifting is broken away from the water surface, be not subjected to the impact of change of level.Jacking system can adopt the mode lifting platforms such as hydraulic lifting, gear climbing or the stretching of pulley rope, makes it break away from the water surface.
Fig. 3 illustrates the fixing again gasification platform of ballast semisubmersible, fixes in bottom construction Base station, stake or
Figure BSA00000351389000042
Apparatus capable of fluctuating, will be again the gasification installation platform after the water surface is adjusted to assigned address, by ballast its sinking or jacking system are risen, the platform that gasifies again is fixed under water on base station, spud pile or the jacking system.Left part illustrates the again gasification platform of floating condition among the figure, does not also add ballast on it, and the platform that gasifies again swims on the water surface, fails to contact fixing with permanent seat.The again gasification that the fixed pedestal state is shown platform is divided in the right side among the figure, loads ballast on the platform that gasifies again, so that the platform sinking of gasifying again, or rise underwater units, the platform bottom is fixed on the pedestal.
Fig. 4 illustrates the fixing again gasification platform of enclosing sunk type, builds closed enclosing works at the water surface, and the gasification installation platform sails in the enclosing structure again, and the water in the enclosing is extracted out partly or entirely, and the gasification installation platform is fixed.Enclosing comprises the fixed sidewall of enclosing pedestal, three directions and the sidewall that gate is housed on direction.The left side illustrates the again gasification platform of floating condition among the figure, and the platform that gasifies again this moment sails in the enclosing, does not also extract the water in the enclosing out.The right side illustrates the again gasification platform of fixed pedestal state among the figure, and this moment, the platform that will gasify again dropped on the enclosing pedestal fixing by extracting the water in the enclosing out.
The platform that gasifies again has mobility, and is when the platform that gasifies again can be adjusted to buoyancy aid with the platform that gasifies again fixedly the time, mobile to second ground from first ground.For example, the platform that gasifies is again built on first ground again, and water transport is installed to second ground; When the needs peak regulation, the platform that gasifies again can be dragged to other local peak regulation that is used for; When running into overhaul, the platform that needs repairing can be dragged to dock and keep in repair, change another platform and replace original platform work.The thing of more being worth mentioning, the platform that movably gasifies again in the situation that do not adopt single point mooring (SPM) and anchor chain mooring, has kept the static of relative ground.It can be built in other local processing, and water transport is installed to building-site, and keeps static when the production and operation.Similarly, the LNG storing platform also has mobility; Further, when gasifying again platform and the two one of LNG storing platform, can have above-mentioned concrete feature as the receiving platform of its one.
Gasify again platform and LNG storing platform can make up layout, and gasification installation can be divided on the different hull platforms with the LNG storage facilities again, also can be placed on the receiving platform that is integrally formed on the identical platform.According to the demand of terminal gas consumption, can configure many gasify again platform and LNG storing platforms.When gasification installation was divided on the different hull platforms with the LNG storage facilities again, the distance of capable of regulating between the two to improve the fire safety performance, should be noted that also when the two one that equally the distance between the two guarantees safety.
Further, with reference to figure 2-4 particularly, the platform 2 that gasifies again vertically can adjusted lifting.Elevating function can be realized by gasify again jacking system on the platform or maritime works's facility or the above two combination of design.The former keeps the static of platform by promoting the platform that gasifies again, and the latter is fixed on maritime works's facility it by reducing the position of platform.In case the location, gasify platform level attitude and vertical position normally are in fixed static with respect to ground again, but in the practical application it can be adjusted according to concrete needs.
Gasification system 1 can be placed on the identical platform with the LNG storage system selectively again, and platform or LNG storing platform more for example gasify.But usually they are split on different platforms, to strengthen the alerting ability of mobility and operation.For the again gasification platform of having the ability to store enough LNG, the LNG storing platform 5 that splits is unnecessary.The LNG storing platform 5 that splits can have its oneself vertical lifting system, and similar (but must be not identical) be in the lifting platform system that gasifies again.
Gasify again platform 2 and LNG storing platform can have respectively power and other necessary facility system on the ship separately.Therefore, each platform all can be designed to from introducing power or other facility system on the bank, thus lighten ship and drinking water, to strengthen mobility.Gasify again platform 2 and LNG storing platform all can be made the very shallow platform of drinking water, installs to make things convenient for offshore, reduces construction costs and operation cost.
Platform 2 adopts submerged combustion gasifier and the air carburetter that is suitable for rivers, inshore region and other shallow water area, the high requirement that can avoid like this gasifier that seawer quality is proposed gasifying again.Gasify again platform 2 and LNG storing platform 5 can get up alone or in combination for peak regulation, as satellite receiving terminal or replenishing and expansion as large-scale receiving terminal.
By storing and transporting system of the present invention and the platform that gasifies again, gasification system again is installed in respectively on the different hull platforms from the LNG storage system, reduced hull size, so that LNG receiving terminal flexible arrangement, convenient navigation; Alleviated the total weight of hull, spud leg easy to use supports fixing.Contrast single-point mooring and anchor chain type mooring take less water surface area, are convenient to navigation; The mobility of platform or LNG storing platform owing to gasifying again, but convenient the installation built in the strange land.When other-end need to gasify platform or LNG storing platform when being used for peak regulation again, it can be transported to the terminal that needs peak regulation and carry out peak regulation, because the globality of transportation can reduce debugging work load little to greatest extent, even can be in order to avoid debugging; The LNG transmission is reliable, gasifying platform during the production and operation all can be relative fixing with the LNG storing platform again, the LNG transfer tube uploads to the LNG storing platform by fixing harbour bunding from the LNG carrier, passing to fixing again gasification platform from the LNG storing platform by bunding, whole transmission pipelines can be used rigid conduit, and reliability is strong.Because the stationarity of hull platform, be convenient to LNG pipeline between the hull platform and the connection of outer gas transmission body pipeline.Be conducive to the work of gasification system, because LNGC alongside harbour, the alongside of LNGC and the unloading of LNG are convenient in contrast single-point mooring and anchor chain type mooring again.The hull platform can rise, and breaks away from the water surface, is not subjected to tidal effect, and especially spud leg supports jack-up platform.
It should be noted that at last, above embodiment is only in order to describe technical scheme of the present invention rather than the present technique method is limited, the present invention can extend to other modification, variation, application and embodiment on using, and therefore thinks that all such modifications, variation, application, embodiment are in spirit of the present invention and teachings.

Claims (16)

1. LNG storing and transporting system comprises: LNG receiving platform, LNG transmission system, terminal maritime works's facility and LNG carrier, it is characterized in that,
Described LNG receiving platform is floating and is movably, can fix when the production and operation; Described LNG receiving platform comprises gasify platform and LNG storing platform again, but described gasify again platform and the split of LNG storing platform or be combined into one, described platform and the LNG storing platform of gasifying again is fixed in the water surface when being docked with the LNG carrier by the LNG transmission system, be furnished with again gasification system on the described platform that gasifies again, be furnished with the LNG storage system on the described LNG storing platform, be furnished with the lifting platform system in gasify again platform and/or the LNG storing platform;
Wherein, described LNG receiving platform drops to the bottom by described lifting platform system with the spud leg on the LNG receiving platform, with the again gasification platform in the LNG receiving platform and/or the lifting of LNG storing platform to break away from the water surface; Described LNG receiving platform drops to floating on water with the again gasification platform in the LNG receiving platform and/or LNG storing platform at the bottom of by described lifting platform system the spud leg on the LNG receiving platform being promoted leaving water.
2. the system of claim 1, wherein, the mode that described lifting platform system adopts hydraulic lifting, gear climbing or pulley rope to stretch is come lifting gasify platform and/or LNG storing platform again.
3. the system of claim 1, wherein, described LNG receiving platform is also by ballast gasify platform and/or LNG storing platform again, or improve liftable underwater facility, the platform that gasifies again is placed under water base station, spud pile or the underwater facility, and unloading ballast or decline underwater facility make gasify platform and/or LNG storing platform floating again.
4. the system of claim 1, wherein, described LNG receiving platform is arranged in the closed enclosing works, extracts the water in the enclosing out, to gasify again platform and/or LNG storing platform is fixed on the enclosing pedestal, and be floating by add will gasify again platform and/or LNG storing platform of water in enclosing.
5. the system of claim 1, wherein, the distance that gasifies again between platform and the LNG storing platform is adjustable, to improve safety performance.
6. the system of claim 1, wherein, described LNG transmission system is arranged between LNG storing platform and the terminal maritime works facility and gasifies between platform and the LNG storing platform again, and for the gas that transmits betwixt blue gas or gasify, transmission pipeline uses rigid conduit.
7. the system of claim 1, wherein, described terminal maritime works's facility is used for providing pipeline, supports the LNG uninstalling system and stops the LNG carrier.
8. the system of claim 7, wherein, described LNG uninstalling system is attached on the terminal maritime works facility, by the cryogenic piping that is located on the terminal maritime works facility LNG is transferred to the LNG storing platform from the carrier unloading and by the LNG transmission system.
9. the system of claim 1, wherein, described gasify platform and LNG storing platform have power facility on separately the ship again, and from introducing on the bank, the two is designed to absorb water very shallow platform.
10. floating LNG receiving platform, it is characterized in that, described LNG receiving platform is floating and movably, described LNG receiving platform comprises gasify platform and LNG storing platform again, but described gasify again platform and the split of LNG storing platform or be combined into one, described platform and the LNG storing platform of gasifying again is fixed in the water surface when being docked with the LNG carrier by the LNG transmission system, gasify again and be furnished with again gasification system on the platform, be furnished with the LNG storage system on the LNG storing platform, be furnished with the lifting platform system in gasify again platform and/or the LNG storing platform;
Wherein, described LNG receiving platform by the lifting platform system with the spud leg supporting descending on the LNG receiving platform at the bottom, the again gasification platform in the LNG receiving platform and/or the lifting of LNG storing platform are broken away from the water surface; Described LNG receiving platform drops to floating on water with the again gasification platform in the LNG receiving platform and/or LNG storing platform at the bottom of by described lifting platform system the spud leg on the LNG receiving platform being promoted leaving water.
11. the platform of claim 10, wherein, the mode that described lifting platform system adopts hydraulic lifting, gear climbing or pulley rope to stretch is come lifting gasify platform and/or LNG storing platform again.
12. the platform of claim 10, wherein, described LNG receiving platform is by ballast gasify platform and/or LNG storing platform again, or the liftable underwater facility that rises, platform is placed on platform, spud pile or the underwater facility of building at the bottom, and unloading ballast or decline underwater facility make gasify platform and/or LNG storing platform floating again.
13. the platform of claim 10, wherein, described LNG receiving platform is arranged in the closed enclosing works, extracts the water in the enclosing out, to gasify again platform and/or LNG storing platform is fixed on the enclosing pedestal, and be floating by add will gasify again platform and/or LNG storing platform of water in enclosing.
14. the platform of claim 10, wherein, the distance that gasifies again between platform and the LNG storing platform is adjustable, to improve safety performance.
15. the platform of claim 14, wherein, the platform that gasifies again is connected with the LNG storing platform by the LNG transmission system, is used for transmitting blue gas.
16. the platform of claim 10, wherein, described gasify platform and LNG storing platform have power facility on separately the ship again, and from introducing on the bank, the two all is designed to absorb water very shallow platform.
CN2010105499408A 2010-11-19 2010-11-19 LNG storage and transportation system and floating type receiving platform thereof Expired - Fee Related CN102050208B (en)

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