CN104071306A - Externally transmitting equipment in tandem manner for FLNG (floating, LNG production, storage and offloading system) based on rotating disc type rigid pipe - Google Patents
Externally transmitting equipment in tandem manner for FLNG (floating, LNG production, storage and offloading system) based on rotating disc type rigid pipe Download PDFInfo
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- CN104071306A CN104071306A CN201410283524.6A CN201410283524A CN104071306A CN 104071306 A CN104071306 A CN 104071306A CN 201410283524 A CN201410283524 A CN 201410283524A CN 104071306 A CN104071306 A CN 104071306A
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- rigid pipe
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- rotating disk
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Abstract
The invention relates to externally transmitting equipment in a tandem manner for an FLNG (floating, LNG production, storage and offloading system) based on a rotating disc type rigid pipe. The equipment comprises a rotating device which is arranged on the FLNG, a chain-shaped rigid pipe assembly which is formed by the rotating connection of a plurality of sections of rigid pipes, and a control room which is arranged on a base, wherein the rotating device comprises the base which is rotationally connected to the FLNG, two brackets which are symmetrically arranged on the base, a regular polygonal rotating disc which is rotationally connected between the two brackets, and a plurality of tracks which are arranged on the periphery of the rotating disc and are mutually parallel; one end of the first section of the rigid pipe is tightly fixed and connected to the center of the rotating disc and is communicated with liquid tanks on the FLNG through externally transmitting pipelines, the other end of the first section of the rigid pipe is tightly fixed and connected to the intersection between the bottom side and the other neighboring side of the rotating disc, and the rest sections of the rigid pipes are twined in the tracks; the length of the first section of the rigid pipe is equal to the radius of the circumcircle of the rotating disc, and the length of the rest sections of the rigid pipes is equal to the length of the bottom side of the rotating disc; and an externally transmitting control system which is used for controlling the rotating device to rotate is arranged in the control room.
Description
Technical field
The present invention relates to a kind of outer transfer device of exploitation of oil-gas field, particularly go here and there outer transfer device about a kind of FLNG based on rotating disc type rigid pipe.
Background technology
Along with going deep into gradually of global gas prospecting and exploitation, gas field, increasing deep-sea, marginal little gas field and association gas field are found.For economical, develop these gas fields efficiently, industry has proposed a kind of FLNG (Floating, LNG production, storage and offloading system), be floating liquefied natural gas (LNG) production storage device, this device can be realized deeply, off-lying sea gas extraction, processing, liquefaction store and outer transporting operation.
With FPSO (Floating Production Storage and Offloading), be that floating storage and offloading device is similar, the hull section of FLNG is divided multiple liquid tanks is set, for storing the liquefied natural gas (LNG) of oil field output, when each liquid tank at full load need to carry out outer defeated unloading to LNG, with reference to the experience of FPSO, FLNG and LNG carrier can adopt string by carrying out outer defeated unloading with side by two kinds of modes.While adopting string by mode, the stem of LNG carrier is connected with the afterbody of FLNG by mooring fast, the feedway of the logical long-distance of LNG is offloaded to LNG carrier, while conveying due to LNG, temperature is minimum is low to moderate-160 DEG C, and in feedway, available outer defeated pipe has two kinds of rigid pipe and flexible pipes, and hose technology is still immature, the design difficulty of rigid pipe is larger, not yet has application precedent at present in the FLNG building.While adopting side by mode, LNG carrier and FLNG adopt mode side by side to arrange, and two ships link together by mooring fast and fender etc., and LNG is offloaded to LNG carrier by unload arm, this outer defeated mode environmental requirement harshness, and outer defeated efficiency is lower.
Summary of the invention
For the problems referred to above, the object of this invention is to provide a kind of economy, the FLNG based on rotating disc type rigid pipe that easy to operate and compatible with environment is strong and go here and there outer transfer device.
For achieving the above object, the present invention takes following technical scheme: a kind of FLNG based on rotating disc type rigid pipe goes here and there outer transfer device, it is characterized in that, it comprises: one is arranged on the wheel word on FLNG, described wheel word comprises that one is rotatably connected on the pedestal on described FLNG, two are symmetricly set on the support on described pedestal, and one is rotatably connected on the equilateral polygon rotating disk in the middle of support described in two, and are somely opened in described rotating disk periphery and the track being parallel to each other; One is rotationally connected by some joint rigid pipes the chain form rigid pipe forming forms, one end of the described rigid pipe of first joint is fastenedly connected at the center of described rotating disk and by an external transport pipeline and is communicated with the liquid tank on described FLNG, the other end is fastenedly connected on the base of described rotating disk and the intersection point of another adjacent edge, and all the other save described rigid pipe and are wrapped in described track; The first joint length of described rigid pipe and the external radius of a circle of described rotating disk equate, remain the joint length of described rigid pipe and the base length of side of described rotating disk and equate; Also comprise that one is arranged on the control cabin on described pedestal, in described control cabin, be provided with the outer defeated control system of rotating for controlling described wheel word.
Described pedestal is arranged on the afterbody upper surface of described FLNG, and adopts disk structure; Described in two, support symmetry is fastenedly connected at the two ends of the vertical central axis of described pedestal, and described rotating disk adopts regular hexagon structure.
The described rigid pipe of adjacent two joint connects by a swivel joint, and described external transport pipeline is fastenedly connected therein described in one on support.
The present invention is owing to taking above technical scheme, it has the following advantages: the outer defeated unloading manner that 1, adopts string to lean on due to FLNG of the present invention and LNG carrier, reduce the requirement of the external transporting operation environmental conditions of FLNG, therefore, not only improve the efficiency of outer defeated unloading operation, but also can be applicable to more severe marine site.2, can be wrapped on rotating disk and the rigid pipe of field engineering maturation composition is transported to LNG LNG carrier from FLNG because the present invention adopts, although rigid pipe composition self does not possess retractility, but can be wrapped on rotating disk by the some sections of rigid pipes that are rotatably connected, realize its folding and unfolding by the rotation of rotating disk, therefore while making outer transporting operation, the spacing variable range of FLNG and LNG carrier increases, after outer transporting operation completes, by rotating rotating disk, rigid pipe composition is wound around thereon, and do not need independently to store the space of rigid pipe, save hull space, in addition, rigid pipe composition also has good heat-insulating property.3, because rotating disk of the present invention is fixed on rotatable pedestal by support, therefore being convenient to realize rigid pipe composition accurately docks with the quick of LNG carrier, in addition, when outer transporting operation, can also adapt to by the rotation of pedestal self relative motion of FLNG and LNG carrier, meanwhile, rigid pipe composition when outer transporting operation is catenary state, allowing has certain amplitude relative motion between FLNG and LNG carrier, thereby also improves outer transporting operation efficiency when meeting different sea situations use.
In sum, the present invention has good economy, operability and stronger adaptive capacity to environment, can realize the outer transporting operation of string of FLNG, is a kind of outer transfer device of string with better development prospect.
Brief description of the drawings
When Fig. 1 is the outer transporting operation of the present invention, integrally-built master looks schematic diagram
Fig. 2 is the schematic top plan view of Fig. 1
Fig. 3 is that the outer transporting operation of the present invention finishes rear integrally-built master and looks schematic diagram
Detailed description of the invention
Below in conjunction with drawings and Examples, the present invention is described in detail.
As shown in Figure 1 and Figure 2, the present invention includes a wheel word 2 that is arranged on FLNG1 afterbody, wheel word 2 comprises that one is rotatably connected to the disc-shaped base 20 of FLNG1 afterbody upper surface, the two ends symmetry of pedestal 20 vertical central axis is fastenedly connected two stands 21, in the middle of two stands 21, be rotationally connected a regular hexagon rotating disk 22, on each circumferential limit of rotating disk 22, all offer three grooves that are parallel to each other, to form three regular hexagon tracks.In three tracks of rotating disk 22, be all wound around a chain form rigid pipe composition 3, rigid pipe composition 3 is linked in sequence and is formed by swivel joint (not shown) by some joint rigid pipes 30, wherein, one end of first joint rigid pipe 30 is fastenedly connected at rotating disk 22 center, the other end is fastenedly connected the intersection point at 22 liang of adjacent edges of rotating disk, all the other some joint rigid pipes 30 are wrapped in the track on rotating disk 22, and the length of every joint rigid pipe 30 is equal to the length of side of rotating disk 22.The head end of rigid pipe composition 3 is fastenedly connected by one the liquid tank (not shown) that external transport pipeline 6 on a side stand 21 is therein communicated with FLNG1, and the end of rigid pipe composition 3 is communicated with the receiving device 40 on LNG carrier 4.One control cabin 5 rotating for controlling wheel word 2 is also set on pedestal 20, in control cabin 5, is provided with outer defeated control system (not shown).
In the above-described embodiments, rotating disk 22 can adopt the equilateral polygon of any limit number, the first joint length of rigid pipe 30 and the external radius of a circle of equilateral polygon equate, residue saves the length of rigid pipe 30 and the base length of side of equilateral polygon equates, the overall length of rigid pipe composition 3 changes with specific items China and foreign countries transporting operation change of distance.
Describe using method of the present invention below in detail:
As shown in Figure 1 and Figure 2, when outer transporting operation, be positioned at outer defeated control system control rotating disk 22 left-hand revolutions of control cabin 5, rigid pipe composition 3 is emitted to certain distance, and be communicated with the receiving device 40 of LNG carrier 4, after connection, the LNG order being stored in the upper liquid tank of FLNG1 is delivered to receiving device 40 by external transport pipeline 6, rigid pipe composition 3, realizes outer transporting operation.
As shown in Figure 3, after outer transporting operation completes, the disconnection of the receiving device 40 of rigid pipe composition 3 and LNG carrier 4, start the control system that is arranged in control cabin 5, make rotating disk 22 clickwises, realize the recovery of rigid pipe composition 3, after having reclaimed, on whole rigid pipe composition 3 tracks that are wrapped on rotating disk 22.
The various embodiments described above are only for illustrating the present invention; wherein the structure of each parts, connection mode and manufacture craft etc. all can change to some extent; every equivalents of carrying out on the basis of technical solution of the present invention and improvement, all should not get rid of outside protection scope of the present invention.
Claims (3)
1. the FLNG based on rotating disc type rigid pipe goes here and there an outer transfer device, it is characterized in that, it comprises:
One is arranged on the wheel word on FLNG, described wheel word comprises that one is rotatably connected on the pedestal on described FLNG, two are symmetricly set on the support on described pedestal, one is rotatably connected on the equilateral polygon rotating disk in the middle of support described in two, and is somely opened in described rotating disk periphery and the track being parallel to each other;
One is rotationally connected by some joint rigid pipes the chain form rigid pipe forming forms, one end of the described rigid pipe of first joint is fastenedly connected at the center of described rotating disk and by an external transport pipeline and is communicated with the liquid tank on described FLNG, the other end is fastenedly connected on the base of described rotating disk and the intersection point of another adjacent edge, and all the other save described rigid pipe and are wrapped in described track; The first joint length of described rigid pipe and the external radius of a circle of described rotating disk equate, remain the joint length of described rigid pipe and the base length of side of described rotating disk and equate;
Also comprise that one is arranged on the control cabin on described pedestal, in described control cabin, be provided with the outer defeated control system of rotating for controlling described wheel word.
2. a kind of FLNG based on rotating disc type rigid pipe as claimed in claim 1 goes here and there outer transfer device, it is characterized in that, described pedestal is arranged on the afterbody upper surface of described FLNG, and adopts disk structure; Described in two, support symmetry is fastenedly connected at the two ends of the vertical central axis of described pedestal, and described rotating disk adopts regular hexagon structure.
3. a kind of FLNG based on rotating disc type rigid pipe as claimed in claim 1 or 2 goes here and there outer transfer device, it is characterized in that, the described rigid pipe of adjacent two joint connects by a swivel joint, and described external transport pipeline is fastenedly connected therein described in one on support.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410283524.6A CN104071306A (en) | 2014-06-23 | 2014-06-23 | Externally transmitting equipment in tandem manner for FLNG (floating, LNG production, storage and offloading system) based on rotating disc type rigid pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410283524.6A CN104071306A (en) | 2014-06-23 | 2014-06-23 | Externally transmitting equipment in tandem manner for FLNG (floating, LNG production, storage and offloading system) based on rotating disc type rigid pipe |
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| Publication Number | Publication Date |
|---|---|
| CN104071306A true CN104071306A (en) | 2014-10-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410283524.6A Pending CN104071306A (en) | 2014-06-23 | 2014-06-23 | Externally transmitting equipment in tandem manner for FLNG (floating, LNG production, storage and offloading system) based on rotating disc type rigid pipe |
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| CN (1) | CN104071306A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106193177A (en) * | 2016-07-29 | 2016-12-07 | 中国船舶重工集团公司第七〇九研究所 | A kind of water conveying system for mild steel arm single point mooring unit |
| CN112585395A (en) * | 2018-11-01 | 2021-03-30 | 日挥环球株式会社 | Method for outputting liquefied natural gas |
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| DE2642654A1 (en) * | 1976-09-22 | 1978-03-23 | Linde Ag | Floating unit for temporary storage and processing of fluids - which has an elongated ring shape and a single point mooring opposite discharge facilities |
| US6412433B1 (en) * | 1998-02-10 | 2002-07-02 | Navion As | FSO loading/mooring |
| WO2011098527A1 (en) * | 2010-02-10 | 2011-08-18 | Single Buoy Moorings Inc. | Bow loading station with double deck for cryogenic fluid |
| CN102213352A (en) * | 2010-04-09 | 2011-10-12 | Ksb联合股份公司 | Fluid transfer line with serrating modules |
| CN102264596A (en) * | 2008-11-20 | 2011-11-30 | 单点系泊公司 | Multi-function unit for the offshore transfer of hydrocarbons |
| CN102548839A (en) * | 2009-05-13 | 2012-07-04 | 机械工程欧洲公司 | Method for transferring fluids between a first ship and a second ship, and transfer system for implementing said method |
| CN204021209U (en) * | 2014-06-23 | 2014-12-17 | 中国海洋石油总公司 | FLNG based on rotating disc type rigid pipe goes here and there outer transfer device |
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2014
- 2014-06-23 CN CN201410283524.6A patent/CN104071306A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2642654A1 (en) * | 1976-09-22 | 1978-03-23 | Linde Ag | Floating unit for temporary storage and processing of fluids - which has an elongated ring shape and a single point mooring opposite discharge facilities |
| US6412433B1 (en) * | 1998-02-10 | 2002-07-02 | Navion As | FSO loading/mooring |
| CN102264596A (en) * | 2008-11-20 | 2011-11-30 | 单点系泊公司 | Multi-function unit for the offshore transfer of hydrocarbons |
| CN102548839A (en) * | 2009-05-13 | 2012-07-04 | 机械工程欧洲公司 | Method for transferring fluids between a first ship and a second ship, and transfer system for implementing said method |
| WO2011098527A1 (en) * | 2010-02-10 | 2011-08-18 | Single Buoy Moorings Inc. | Bow loading station with double deck for cryogenic fluid |
| CN102213352A (en) * | 2010-04-09 | 2011-10-12 | Ksb联合股份公司 | Fluid transfer line with serrating modules |
| CN204021209U (en) * | 2014-06-23 | 2014-12-17 | 中国海洋石油总公司 | FLNG based on rotating disc type rigid pipe goes here and there outer transfer device |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106193177A (en) * | 2016-07-29 | 2016-12-07 | 中国船舶重工集团公司第七〇九研究所 | A kind of water conveying system for mild steel arm single point mooring unit |
| CN112585395A (en) * | 2018-11-01 | 2021-03-30 | 日挥环球株式会社 | Method for outputting liquefied natural gas |
| CN115289394A (en) * | 2018-11-01 | 2022-11-04 | 日挥环球株式会社 | Floating body device |
| CN112585395B (en) * | 2018-11-01 | 2022-12-02 | 日挥环球株式会社 | Method for outputting liquefied natural gas |
| CN115289394B (en) * | 2018-11-01 | 2023-12-08 | 日挥环球株式会社 | Floating body equipment |
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