WO2019105171A1 - Flng船舶系泊密封装置及实施方法 - Google Patents

Flng船舶系泊密封装置及实施方法 Download PDF

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Publication number
WO2019105171A1
WO2019105171A1 PCT/CN2018/113319 CN2018113319W WO2019105171A1 WO 2019105171 A1 WO2019105171 A1 WO 2019105171A1 CN 2018113319 W CN2018113319 W CN 2018113319W WO 2019105171 A1 WO2019105171 A1 WO 2019105171A1
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WIPO (PCT)
Prior art keywords
sealing
cable
mooring
plate
rubber
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PCT/CN2018/113319
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English (en)
French (fr)
Inventor
成红
葛晓强
黎丽
袁辉
章英海
田丰
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惠生（南通）重工有限公司
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Publication of WO2019105171A1 publication Critical patent/WO2019105171A1/zh

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16J—PISTONS; CYLINDERS; SEALINGS
    • F16J3/00—Diaphragms; Bellows; Bellows pistons
    • F16J3/04—Bellows
    • F16J3/041—Non-metallic bellows
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B21/00—Tying-up; Shifting, towing, or pushing equipment; Anchoring
    • B63B21/20—Adaptations of chains, ropes, hawsers, or the like, or of parts thereof
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16J—PISTONS; CYLINDERS; SEALINGS
    • F16J15/00—Sealings
    • F16J15/16—Sealings between relatively-moving surfaces
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16J—PISTONS; CYLINDERS; SEALINGS
    • F16J15/00—Sealings
    • F16J15/16—Sealings between relatively-moving surfaces
    • F16J15/32—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings
    • F16J15/3268—Mounting of sealing rings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16J—PISTONS; CYLINDERS; SEALINGS
    • F16J3/00—Diaphragms; Bellows; Bellows pistons
    • F16J3/04—Bellows
    • F16J3/048—Bellows with guiding or supporting means
    • 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
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A30/00—Adapting or protecting infrastructure or their operation
    • Y02A30/30—Adapting or protecting infrastructure or their operation in transportation, e.g. on roads, waterways or railways

Definitions

  • the invention relates to a ship mooring device and an implementation method thereof, in particular to a FLNG ship mooring sealing device and a method for implementing the same.
  • the dimethyl plate of the FLNG ship is a freeboard deck.
  • the left and right sides of the dimethyl plate are dangerous areas, and the positive pressure of the dimethyl plate chamber is required to be 2 bar.
  • the outer plate The temporary towing belt, the ship positioning mooring cable hole and the observation hole are designed to be sealed with a sealing plate to ensure airtightness.
  • the shipowner is required to complete all FLNG performance tests at the terminal. Therefore, during the intake and commissioning phases of the FLNG performance test, the left and right side of the slab is a dangerous area, and the compartments involved in this area need to be sealed.
  • the FLNG ship is moored at the dock by mooring cables. It is necessary to moor the FLNG ship by using the left side and the crotch piles, the guide holes and the mooring lines of the x-ray board, resulting in the inability to use the originally designed dangerous area Panama cable. Hole and observation hole sealing plate. Considering that the FLNG is moored at the dock, how to ensure that the mooring rope passes through the cable guide hole to ensure the seal when the ship is in dynamic, tidal and windy conditions, this is a problem that must be solved.
  • the technical problem to be solved by the invention is to ensure that when the FLNG is moored at the dock, the mooring rope can pass through the guide cable hole to ensure the sealing when the ship is in dynamic, tidal and wind and wave changing conditions.
  • the FLNG ship mooring sealing device of the present invention comprises a sealing cavity, the upper end of the sealing cavity is sealingly connected to the cable guide flange plate, the lower end of the sealing cavity is covered with a rubber gasket, and the rubber gasket wraps the guiding cable.
  • the rubber gasket and the guide cable are sealed by a sealant, and the lower end of the sealing chamber and the guide cable are sealed by a sealant, and the lower end of the seal chamber and the cable connection are sealed by a strong tape.
  • the sealing cavity comprises a sealing plate, the sealing plate is provided with an opening, and the opening is provided with a ventilation pipe, the ventilation pipe and the sealing plate are sealed and sealed by a strong adhesive tape, and the sealing plate passes through the sealing glue Attached to the cable guide flange plate, a rubber gasket is disposed between the sealing plate and the cable guide flange plate, and the sealing plate and the cable flange plate joint are sealed by a strong adhesive tape.
  • the implementation method of the solution after the mooring cable is installed, first cut the two ends at the lower end of the middle opening of the sealing plate, so that the mooring cable passes through the sealing plate, and then the lower end of the incision is wound with a multi-layer of strong tape to ensure sealing;
  • Use a ventilation pipe at the opening of the sealing plate The upper end of the ventilation pipe passes through the opening of the sealing plate, and is bonded with the sealing plate with strong tape to ensure sealing; the rubber gasket is added between the sealing plate and the flange of the cable guide hole, and the sealing rubber is used. Bond the rubber backing ring to the flange plate and sealing plate of the cable guide hole, and then bond the outer side of the sealing plate to the inner side of the flange of the cable guide hole with sealing strength tape.
  • the sealing cavity includes a sealing cover plate, and the sealing cover plate is welded with a guiding tube, the guiding tube is sleeved with a rubber telescopic tube, and the connecting portion of the guiding tube and the rubber telescopic tube is made of a strong adhesive tape.
  • a sealing seal the sealing cover is fixed on the cable guide flange plate by a fastener, and a rubber gasket is arranged between the sealing cover and the cable guide flange plate, and the sealing cover and the cable guide flange plate joint are Use a strong tape to bond the seal.
  • the method for implementing the scheme after the mooring cable is installed, firstly removes the mooring mooring cable which is originally fixed on the bollard pile, and passes the mooring cable grommet through the guiding tube on the sealing cover, the rubber telescopic tube and Rubber backing ring, then fasten the sealing cover and rubber backing ring to the cable guide flange plate with fasteners.
  • the sealing cavity is an integral sealing cover made of high-strength PVC airtight cloth, and the upper end of the sealing cover encloses the guiding cable hole flange plate, and the upper end of the sealing cover and the flange of the guiding cable hole are wound and fixed horizontally and longitudinally by the strong tape.
  • the ventilation pipe is a wave-shaped pipe.
  • the FLNG ship mooring sealing device of the invention has the advantages of convenient installation and low control cost, and the mooring cable can ensure the sealing when the ship is moving up, down, left and right, and front and rear swinging conditions when the ship dynamics, tides and wind waves change.
  • Figure 1 is a schematic view showing the structure of the first embodiment
  • Figure 2 is an enlarged view of the joint of the sealing cavity and the cable guide flange plate in the first embodiment
  • Figure 3 is a schematic structural view of the second embodiment
  • Figure 4 is an enlarged view of the joint of the sealing cavity and the cable guide flange plate in the second embodiment
  • Figure 5 is a schematic structural view of a third embodiment
  • Figure 6 is an enlarged view of the joint of the sealing cavity and the cable guide flange plate in the third embodiment
  • Figure 7 is an enlarged view of the junction of the lower end of the sealed chamber.
  • a first embodiment of the present invention includes a mooring line 1, a cable guide 2, an outer panel 3, a cable guide flange plate 4, a sealing strength tape 5, a rubber gasket 6, and a sealing plate 7. , ventilation pipe 8 and other parts.
  • the sealing plate 7 is made of polyethylene hollow plate, has a double-layer hollow plate structure, and has reinforcing studs in the middle, which has very good flexibility and ensures airtightness.
  • the mooring line 1 at each mooring point of the ship is the whole cable.
  • the mooring line 1 passes through the cable guide hole 2 on the outer panel 3 of the ship, and is fixed with the pier and the ship with the cable pile, so the mooring sealing operation is After the mooring line 1 is installed;
  • the mooring lines of the ship will swing up and down, left and right, and back and forth at the cable guide holes with different working conditions. Therefore, when studying the mooring sealing scheme,
  • the vinyl hollow plate is used as the sealing plate 7. Since the mooring sealing operation is performed after the mooring cable is installed, the lower end of the middle opening of the sealing plate 7 is first cut into two halves, so that the mooring cable 1 passes through the sealing plate 7, and then The lower end of the slit is wound with a layer of sealing strength tape 5 to ensure a seal.
  • the PVC plastic venting pipe 8 is used at the opening of the sealing plate 7, and the upper end passes through the opening of the sealing plate 7, and is bonded with the sealing plate 7 by the sealing strong tape 5 to ensure the sealing.
  • a rubber gasket ring is added in the middle, and the rubber gasket ring is bonded with the sealing rubber to the cable flange plate 4 and the sealing plate 7 to ensure the sealing and the installation is firm, and the sealing force tape is used again. 5
  • the outer side of the sealing plate 1 is bonded and fixed to the inner side of the cable guide flange plate 4.
  • the middle opening of the sealing plate 7 is according to the mooring cable 1 when the ship dynamics, tides and wind waves change, the cable can move freely, and there is no interference with the sealing plate 7, which satisfies the mooring line when the ship dynamics, tides and wind waves change.
  • the requirements of the working conditions of the upper and lower sides of the guide cable hole are oscillated.
  • PVC plastic ventilation pipe 8 In order to meet the requirements of the mooring cable in the dynamic, tidal and wind waves of the ship, the upper and lower, left and right, and front and rear swinging conditions of the cable guide hole are required. The diameter of the cable is matched with the opening of the sealing plate 7 to meet the ventilation pipe 8 The upper and lower ends of the air duct 8 are provided with sufficient telescopic length to form a wave-shaped duct, which is convenient for the cable to swing back and forth. The upper end of the air duct 8 is bonded with the sealing board 7 by a sealing strong tape 5, and the lower end and the mooring line 1 are sealed with a strong adhesive tape 5 Winding fixed.
  • Sealing strength tape 5 3M cloth tape is used.
  • the sealing strength tape 5 is for the lower end of the sealing plate 7 to be butt jointed, the outer side of the sealing plate 7 is bonded to the inner side of the cable guide flange plate 4, and the upper end of the air pipe 8 is bonded to the sealing plate 7
  • the lower end of the air duct 8 is wound and fastened with the mooring cable 1.
  • the sealing strong tape 5 is alternately wound at least three layers.
  • Rubber washer 6 rubber gasket is used.
  • the lower end of the air duct 8 is sealed with the mooring cable 1.
  • the rubber gasket 6 is used to achieve airtightness.
  • the rubber gasket 6 at the lower end of the air duct 8 is bonded to the mooring cable 1 with a sealant.
  • the lower end of the air duct 8 is alternately wound with the rubber washer 6 and the mooring line 1 by at least three layers with a sealing strength tape 5. At the lower end of the air duct 8 and the mooring line 1 are further bonded with a sealant to ensure a seal again.
  • Sealant Strong AB sealant for bonding rubber gasket and sealing plate 7, sealing cable flange plate 4, rubber gasket 6 and mooring cable 1, lower end of ventilation pipe 8 and mooring cable 1 .
  • a second embodiment of the present invention includes a mooring line 1, a cable guide 2, an outer panel 3, a cable guide flange plate 4, a sealing strength tape 5, a rubber gasket 6, and a sealing cover.
  • Guide steel pipe 10 rubber telescopic pipe 11, rubber backing ring 12 and the like.
  • Sealing cover 9 Firstly, according to the outer dimensions of the flange of the cable guide hole, the steel plate is cut and cut, and then the hole is drilled according to the bolt hole on the flange of the cable guide hole. Finally, the cable is welded on the sealing cover 9 according to the direction of the cable of the mooring cable.
  • the guiding steel pipe 10 and the inner diameter of the guiding steel pipe 10 ensure that the lower end of the mooring cable 1 can pass through, and can ensure that the mooring cable 1 can swing up and down and left and right at the cable opening when the ship dynamics, tides and wind waves change.
  • the mooring line 1 at each mooring point of the ship is the whole cable.
  • the mooring line 1 passes through the cable guide hole 2 on the outer panel 3 of the ship, and is fixed with the pier and the ship with the cable pile, so the mooring sealing operation is After the mooring line 1 is installed;
  • the steel sealing cover 9 with the guiding steel pipe because it is a steel sealing plate, firstly fixes the mooring line with the hoe under the cable pile, and passes the mooring cable hoe through the guiding steel pipe.
  • the sealing cover 9, the rubber telescopic tube 11 and the cable guide hole 2 are originally equipped with the rubber backing ring 12, and then the sealing cover 9 and the rubber backing ring 12 are fixed to the cable guide hole flange by fasteners (bolts, nuts and washers).
  • the original rubber gasket ring 12 is used to ensure that the sealing cover 9 and the flange of the cable guide are sealed.
  • Rubber telescopic tube 11 In order to meet the requirements of the mooring line in the dynamic, tidal and wind waves of the ship, the upper and lower, left and right, and front and rear swinging conditions of the cable guide hole are required.
  • the inner diameter and the sealing plate 9 are matched with the guide steel pipe 10 for rubber expansion and contraction.
  • the tube 11 and the upper end of the rubber bellows 11 are bonded to the guide tube 10 on the sealing cover 9 by a sealing strong tape 5, and the lower end and the mooring line 1 are wound and fixed by a sealing strong tape 5.
  • Rubber washer 6 rubber gasket is used to ensure the inner side of the rubber telescopic tube 11 is sealed with the mooring cable 1 and the rubber gasket 6 is used to achieve airtightness.
  • the rubber gasket 6 is first bonded with the mooring cable 1 by a sealant.
  • the rubber bellows 11 and the rubber gasket 6 and the mooring line 1 are alternately wound with each other by at least three layers with a sealing strength tape 5.
  • the lower end of the rubber bellows 11 is bonded to the mooring line 1 with a sealant to ensure a seal again.
  • Sealing strength tape 5 3M cloth tape is used, and the sealing strength tape 5 is used for the upper end of the rubber bellows 11 to be bonded to the guide steel pipe 10 on the sealing cover 9, and the lower end of the rubber bellows 11 is wound and fixed with the mooring cable 1. To ensure airtightness, the sealing strength tape 5 is alternately wound at least three layers.
  • the upper end of the rubber bellows 11 is bonded to the sealing cover 9 by a sealing strength tape 5, and the lower end and the mooring line 1 are wound and fixed by a sealing strong tape 5.
  • Sealant It is made of strong AB sealant for bonding rubber gasket 6 and mooring cable 1. The lower end of rubber telescopic tube 11 is sealed with mooring cable 1.
  • Adopting the method of overall and then partial firstly consider how to seal and install conveniently and quickly, use the stock steel plate and the original supporting materials to reduce the cost and effectively control the quality, and then select the sealing cover 9 and select the rubber expansion tube 11
  • the rubber washer 6 is selected, the sealing strong tape 5 is selected, and the sealant is selected.
  • the steel sealing cover 9 with the guiding steel pipe 10 and the bolt hole is used, the raw material cost is increased, the on-site processing is cumbersome, the angle of the guiding steel pipe 10 is difficult to be effectively controlled, and the sealing cover 9 and the original rubber gasket are additionally installed.
  • the mooring line at the bollard should be removed first to increase the on-site installation workload, and the telescopic length of the rubber telescopic tube 11 is limited to affect the working conditions of the mooring line.
  • mooring line 1 cable guide 2, outer panel 3, cable guide flange plate 4, sealing force tape 5, rubber gasket 6, sealing cover 7, etc. section.
  • the sealing cover 7 is made of high-strength PVC airtight cloth to ensure airtightness.
  • the mooring line 1 at each mooring point of the ship is the whole cable.
  • the mooring line 1 passes through the cable guide hole 2 on the outer panel 3 of the ship, and is fixed with the pier and the ship with the cable pile, so the mooring sealing operation is After the mooring line 1 is installed;
  • the ship mooring rope will swing up and down, left and right, and back and forth in the cable guide hole according to different working conditions. Therefore, when studying the mooring sealing scheme, select high strength.
  • the PVC airtight cloth is used as the sealing cover 7.
  • the upper and lower ends of the sealing cover 7 are sufficiently stretched and long, and the upper end is wrapped around the flange plate 4 of the guide cable hole twice, and the sealing strength tape is used at the interface of the sealing cover 7 and the upper flange interface.
  • the lower end and the mooring cable 1 are wound and fixed by the sealing strong tape 5, and the sealing cover 7 selection method satisfies the mooring line up and down, left and right, front and rear swinging at the cable guiding hole when the ship dynamics, tides and wind waves change. Condition requirements.
  • Sealing strength tape 5 3M cloth tape is used.
  • the sealing strength tape 5 is used for the sealing cover 7 butt joint, the sealing cover 7 and the cable guide hole 2, the sealing cover 7 and the cable 1 are wound and fixed, in order to ensure airtightness and sealing the strong tape. 5 alternately winding at least three layers.
  • Rubber gasket 6 rubber gasket is used to ensure the inner side of the lower end of the sealing cover 7 is sealed with the mooring cable.
  • the rubber gasket 6 is used to achieve airtightness.
  • the rubber gasket 6 is first bonded with the mooring cable 1 by the sealing glue.
  • the sealing strength tape 5 alternately winds the sealing cover 7 with the rubber gasket 6 and the mooring line 1 at least three layers.
  • the lower end of the sealing cover 7 is bonded to the mooring line 1 with a sealant to ensure a seal again.
  • a strong AB sealant is used to bond the rubber gasket 6 with the mooring line 1.
  • the end of the sealing cover 7 is sealed with the mooring line 1.
  • the whole method is adopted first. Firstly, how to seal and install easily and quickly, reduce the cost and effectively control the quality. Then, the sealing cover 7 is selected, the sealing strong tape 5 is selected, the rubber gasket 6 is selected, and the sealing rubber is selected.
  • the advantages of the embodiment using inventory and existing materials, convenient material selection, low cost, convenient and quick installation, effective control of quality, and ensuring that the mooring line is up, down, left and right, before and after the movement of the cable, when the ship dynamics, tides and wind waves change. Sealing is guaranteed during swinging conditions.
  • the third embodiment completely solves the requirements of airtight and mooring cable working conditions, and reduces the cost, the installation is convenient and fast, and the quality is effectively controlled, which is unanimously recognized by the shipowner and the ship inspection.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Ocean & Marine Engineering (AREA)
  • Sealing Devices (AREA)
  • Ropes Or Cables (AREA)

Abstract

一种FLNG船舶系泊密封装置及其实施方法，包括密封腔，密封腔的上端密封连接在导缆孔法兰板（4）上，密封腔的下端包裹有橡胶垫圈（6），橡胶垫圈（6）包裹系泊缆绳（1），橡胶垫圈（6）和系泊缆绳（1）之间利用密封胶密封，密封腔的下端和系泊缆绳（1）之间利用密封胶密封，密封腔的下端和系泊缆绳（1）连接处利用强力胶带（5）缠绕密封。该装置具有安装方便快捷，成本低的效果，且系泊缆绳（1）在船舶动态、潮汐及风浪变化时，在导缆孔（2）处上下、左右、前后摆动工况时都能保证密封。

Description

FLNG船舶系泊密封装置及实施方法 技术领域
本发明涉及船舶系泊装置及其实施方法，尤其涉及FLNG船舶系泊密封装置及其实施方法。
背景技术
FLNG船舶的二甲板为干舷甲板，在FLNG运行处理作业状态时，二甲板左右舷船舯至艏部区域属于危险区域，要求二甲板舱室正压在2bar，为防止危险气体进入舱室，外板上所设计临时拖带、船舶定位系泊导缆孔和观察孔均设计用封板封住，保证气密。
船东要求在码头完成所有FLNG性能试验，所以在FLNG性能试验的进气、调试阶段，二甲板左右舷船舯至艏部区域属于危险区域，所涉及该区域舱室需保证密封。但FLNG船舶是靠系泊缆绳系泊在码头，需要使用二甲板左舷及艏部带缆桩、导缆孔、系泊缆绳对FLNG船舶进行系泊，导致无法使用原先所设计危险区域巴拿马导缆孔及观察孔封板。考虑FLNG系泊在码头，如何确保在船舶在动态、潮汐及风浪变化等工况时，系泊缆绳穿过导缆孔处都能保证密封，这是必须解决的问题。
发明内容
本发明所要解决的技术问题是确保FLNG系泊在码头时，船舶在动态、潮汐及风浪变化等工况时，系泊缆绳穿过导缆孔处都能保证密封。
为了解决上述技术问题，本发明的FLNG船舶系泊密封装置，包括密封腔，所述密封腔的上端密封连接在导缆孔法兰板上，密封腔的下端包裹有橡胶垫圈，橡胶垫圈包裹导缆绳，橡胶垫圈和导缆绳之间利用密封胶密封，密封腔的下端和导缆绳之间利用密封胶密封，密封腔的下端和导缆绳连接处利用强力胶带缠绕密封。
上述方案中，所述密封腔，包括密封板，密封板上设置有开孔，开孔上设置有通风管，所述通风管和密封板通过强力胶带粘接密封，所述密封板通过密封胶连接在导缆孔法兰板上，所述密封板和导缆孔法兰板之间设置橡胶垫环，所述密封板和导缆孔法兰板连接处利用强力胶带粘接密封。该方案实施方法，：在系泊 缆绳安装后，先将密封板中间开孔处下端切割两半，使系泊缆绳穿过密封板，然后将下端切口处用强力胶带多层缠绕，确保密封；密封板上开孔处使用通风管，通风管上端穿过密封板的开孔处，用强力胶带与密封板粘接，确保密封；密封板与导缆孔法兰板中间增加橡胶垫环，用密封胶将橡胶垫环粘接在导缆孔法兰板及密封板上，再用密封强力胶带将密封板外侧与导缆孔法兰板内侧粘接固定。
上述方案中，所述密封腔，包括密封盖板，所述密封盖板上焊接有导向管，所述导向管上套结有橡胶伸缩管，所述导向管和橡胶伸缩管连接处利用强力胶带粘接密封，所述密封盖板通过紧固件固定在导缆孔法兰板上，所述密封盖板和导缆孔法兰板之间设置橡胶垫环，所述密封盖板和导缆孔法兰板连接处利用强力胶带粘接密封。该方案实施方法，在系泊缆绳安装后，先将原固定在带缆桩上带有琵琶头系泊缆绳拆下，将系泊缆绳琵琶头穿过密封盖板上导向管、橡胶伸缩管及橡胶垫环，然后用紧固件将密封盖板、橡胶垫环固定在导缆孔法兰板上。
上述方案中，所述密封腔是采用高强PVC气密布制成的一体式密封罩，密封罩上端包裹导缆孔法兰板，密封罩上端和导缆孔法兰板连接处利用强力胶带横向、纵向缠绕固定。
上述方案中，所述通风管为波浪形管道。
本发明的FLNG船舶系泊密封装置具有安装方便快捷，控制成本低，系泊缆绳在船舶动态、潮汐及风浪变化时，在导缆孔处上下、左右、前后摆动工况时都能保证密封。
附图说明
图1为第一实施例的结构示意图；
图2为第一实施例中密封腔和导缆孔法兰板连接处放大图；
图3为第二实施例的结构示意图；
图4为第二实施例中密封腔和导缆孔法兰板连接处放大图；
图5为第三实施例的结构示意图；
图6为第三实施例中密封腔和导缆孔法兰板连接处放大图；
图7为密封腔下端连接处放大图。
具体实施方式
参见图1、2和7，本发明的第一种实施方式，包括系泊缆绳1、导缆孔2、外板3、导缆孔法兰板4、密封强力胶带5、橡胶垫圈6、密封板7、通风管8等部分。
密封板7，采用聚乙烯中空板，具有双层中空板结构，中间有加强立筋，柔韧性非常好，保证气密要求。
研究FLNG船舶系泊密封方法时考虑以下两点：
a、船舶每个系泊点处系泊缆绳1为整根缆绳，系泊缆绳1通过船舶外板3上导缆孔2，分别与码头及船舶上带缆桩固定，故系泊密封作业是在系泊缆绳1安装后再进行；
b、考虑到船舶在动态、潮汐及风浪变化等工况时，船舶系泊缆绳会随着不同工况在导缆孔处上下、左右、前后摆动，故在研究系泊密封方案时，选用聚乙烯中空板作为密封板7，由于系泊密封作业是在系泊缆绳安装后再进行，首先将密封板7中间开孔处下端切割两半，便于系泊缆绳1穿过密封板7，然后将下端切口处用密封强力胶带5多层缠绕，确保密封。密封板7开孔处使用PVC塑料通风管8，上端穿过密封板7的开孔处，用密封强力胶带5与密封板7粘接，保证密封。为保证密封板7与导缆孔法兰板4密封，中间增加橡胶垫环，用密封胶将橡胶垫环粘接导缆孔法兰板4及密封板7，为保证密封及安装牢固，再用密封强力胶带5将密封板1外侧与导缆孔法兰板4内侧粘接固定。密封板7中间开孔是根据系泊缆绳1在船舶动态、潮汐及风浪变化时缆绳都能活动自如，与密封板7无任何干涉，满足系泊缆绳在船舶动态、潮汐及风浪变化时，在导缆孔处上下、左右摆动工况要求。
PVC塑料通风管8：为满足系泊缆绳在船舶动态、潮汐及风浪变化时，在导缆孔处上下、左右、前后摆动工况要求，选用口径与密封板7上开孔相符合通风管8，通风管8上下端留有足够伸缩长度，叠加形成波浪形管道，便于缆绳前后摆动，通风管8上端用密封强力胶带5与密封板7粘接，下端与系泊缆绳1用密封强力胶带5缠绕固定。
密封强力胶带5：采用3M的布基胶带，密封强力胶带5是为密封板7下端切口对接、密封板7外侧与导缆孔法兰板4内侧粘接、通风管8上端与密封板上7粘接、通风管8下端与系泊缆绳1缠绕固定所用，为保证气密，密封强力胶带5 交替缠绕至少三层。
橡胶垫圈6：采用橡胶衬垫，通风管8下端与系泊缆绳1处密封，中间使用橡胶垫圈6达到气密，用密封胶将通风管8下端橡胶垫圈6与系泊缆绳1粘接，再用密封强力胶带5将通风管8下端与橡胶垫圈6、系泊缆绳1相互交替缠绕至少三层。在通风管8下末端与系泊缆绳1处再用密封胶粘接，再次确保密封。
密封胶：采用强力AB密封胶，用于粘接橡胶垫环与密封板7、导缆孔法兰板4密封，以及橡胶垫圈6与系泊缆绳1、通风管8下末端与系泊缆绳1处密封。
采取的研究方法：
采用先整体后局部的方法，先整体考虑如何密封且安装方便快捷，利用库存及现有材料，降低成本，有效控制质量，然后再进行密封板7选用，PVC塑料通风管8选用，密封强力胶带5选用，橡胶垫圈6选用，密封胶选用。
该实施方案优点：利用库存及现有材料，选材方便，成本低廉，安装方便快捷。
该实施方案缺点：由于密封板1下端切口及中间开孔，保证系泊缆绳穿过，因用密封强力胶带5将密封板7切口处密封，以及密封板7与通风管8上端处密封，气密要求的稳定性相对较弱。
参见图3、4和7，本发明的第二种实施方式，包括系泊缆绳1、导缆孔2、外板3、导缆孔法兰板4、密封强力胶带5、橡胶垫圈6、密封盖板9、导向钢管10、橡胶伸缩管11、橡胶垫环12等部分。
密封盖板9：先按导缆孔法兰外形尺寸，采用钢板切割下料，再按导缆孔法兰上螺栓孔进行划线钻孔，最后按系泊缆绳导缆方向，在密封盖板9上焊接缆绳导向钢管10，导向钢管10内径保证系泊缆绳1下端琵琶头能穿过，并能保证系泊缆绳1在船舶动态、潮汐及风浪变化时，能在导缆孔处上下、左右摆动。
研究FLNG船舶系泊密封方法时考虑以下两点：
a、船舶每个系泊点处系泊缆绳1为整根缆绳，系泊缆绳1通过船舶外板3上导缆孔2，分别与码头及船舶上带缆桩固定，故系泊密封作业是在系泊缆绳1安装后再进行；
b、考虑到船舶在动态、潮汐及风浪变化等工况时，船舶系泊缆绳会随着不 同工况在导缆孔处上下、左右、前后摆动，故在研究系泊密封方案时，选用焊有导向钢管的钢质密封盖板9，由于是钢质的密封板，先将原固定在带缆桩上带有琵琶头系泊缆绳拆下，将系泊缆绳琵琶头穿过带有导向钢管的密封盖板9、橡胶伸缩管11及导缆孔2原所配套橡胶垫环12，然后用紧固件(螺栓、螺母及垫圈)将密封盖板9、橡胶垫环12固定在导缆孔法兰板4上，利用原所配套橡胶垫环12，确保密封盖板9与导缆孔法兰处密封。
橡胶伸缩管11：为满足系泊缆绳在船舶动态、潮汐及风浪变化时，在导缆孔处上下、左右、前后摆动工况要求，选用内径与密封盖板9上导向钢管10相配套橡胶伸缩管11，橡胶伸缩管11上端用密封强力胶带5与密封盖板9上导向钢管10粘接，下端与系泊缆绳1用密封强力胶带5缠绕固定。
橡胶垫圈6：采用橡胶衬垫，为保证橡胶伸缩管11下端内侧与系泊缆绳1处密封，中间使用橡胶垫圈6达到气密，先用密封胶将橡胶垫圈6与系泊缆绳1粘接，再用密封强力胶带5将橡胶伸缩管11与橡胶垫圈6、系泊缆绳1相互交替缠绕至少三层。在橡胶伸缩管11下末端与系泊缆绳1处再用密封胶粘接，再次确保密封。
密封强力胶带5：采用3M的布基胶带，密封强力胶带5是为橡胶伸缩管11上端与密封盖板9上导向钢管10粘接、橡胶伸缩管11下端与系泊缆绳1缠绕固定所用，为保证气密，密封强力胶带5交替缠绕至少三层。
橡胶伸缩管11上端用密封强力胶带5与密封盖板9粘接，下端与系泊缆绳1用密封强力胶带5缠绕固定。
密封胶：采用强力AB密封胶，用于粘接橡胶垫圈6与系泊缆绳1、橡胶伸缩管11下末端与系泊缆绳1处密封。
采取的研究方法：
采用先整体后局部的方法，先整体考虑如何密封且安装方便快捷，利用库存板材钢管及原所配套材料，降低成本，有效控制质量，然后再进行密封盖板9选用，橡胶伸缩管11选用，橡胶垫圈6选用，密封强力胶带5选用，密封胶选用。
该实施方案优点：利用库存板材、钢管及原所配套材料(包括紧固件及导缆 孔处原所配套橡胶垫环)，选材方便，采用导向钢管密封盖板9密封性能好。
该实施方案缺点：采用带有导向钢管10及螺栓孔的钢质密封盖板9，原材料成本加大，现场加工繁琐，导向钢管10角度难以有效控制，另外安装密封盖板9及原橡胶垫环时，需先将带缆桩处系泊缆绳拆下，增加现场安装工作量，还有橡胶伸缩管11伸缩长度受限影响系泊缆绳使用工况。
参见图5、6和7，本发明的第三种实施方式，系泊缆绳1、导缆孔2、外板3、导缆孔法兰板4、密封强力胶带5、橡胶垫圈6、密封罩7等部分。
密封罩7，采用高强PVC气密布，保证气密要求。
研究FLNG船舶系泊密封方法时考虑以下两点：
a、船舶每个系泊点处系泊缆绳1为整根缆绳，系泊缆绳1通过船舶外板3上导缆孔2，分别与码头及船舶上带缆桩固定，故系泊密封作业是在系泊缆绳1安装后再进行；
b、考虑到船舶在动态、潮汐及风浪变化等工况时，船舶系泊缆绳会随着不同工况在导缆孔处上下、左右、前后摆动，故在研究系泊密封方案时，选用高强PVC气密布作为密封罩7，密封罩7上、下端留有足够伸缩长度，上端沿着导缆孔法兰板4整个包裹两圈，在密封罩7对接接口、上端法兰接口处用密封强力胶带5横向、纵向缠绕，下端与系泊缆绳1用密封强力胶带5缠绕固定，密封罩7选择方法满足系泊缆绳在船舶动态、潮汐及风浪变化时，在导缆孔处上下、左右、前后摆动工况要求。
密封强力胶带5：采用3M的布基胶带，密封强力胶带5是为密封罩7对接、密封罩7与导缆孔2、密封罩7与缆绳1缠绕固定所用，为保证气密，密封强力胶带5交替缠绕至少三层。
橡胶垫圈6：采用橡胶衬垫，为保证密封罩7下端内侧与系泊缆绳处密封，中间使用橡胶垫圈6达到气密，先用密封胶将橡胶垫圈6与系泊缆绳1粘接，再用密封强力胶带5将密封罩7与橡胶垫圈6、系泊缆绳1相互交替缠绕至少三层。在密封罩7下末端与系泊缆绳1处再用密封胶粘接，再次确保密封。
密封胶：采用强力AB密封胶，用于粘接橡胶垫圈6与系泊缆绳1、密封罩7末端与系泊缆绳1处密封。
采取的研究方法：
采用先整体后局部的方法，先整体考虑如何密封且安装方便快捷，降低成本，有效控制质量，然后再进行密封罩7选用，密封强力胶带5选用，橡胶垫圈6选用，密封胶选用。
该实施方案优点：利用库存及现有材料，选材方便，成本低廉，安装方便快捷，有效控制质量，确保系泊缆绳在船舶动态、潮汐及风浪变化时，在导缆孔处上下、左右、前后摆动工况时都能保证密封。
综合以上三种方案，第三种实施方案彻底解决了气密及系泊缆绳工况要求，并且降低成本,安装方便快捷，有效控制质量，得到了船东及船检一致认可。

Claims (9)

  1. FLNG船舶系泊密封装置，其特征在于：包括密封腔，所述密封腔的上端密封连接在导缆孔法兰板上，密封腔的下端包裹有橡胶垫圈，橡胶垫圈包裹导缆绳，橡胶垫圈和导缆绳之间利用密封胶密封，密封腔的下端和导缆绳之间利用密封胶密封，密封腔的下端和导缆绳连接处利用强力胶带缠绕密封。
  2. 如权利要求1所述的FLNG船舶系泊密封装置，其特征在于：所述密封腔，包括密封板，密封板上设置有开孔，开孔上设置有通风管，所述通风管和密封板通过强力胶带粘接密封，所述密封板通过密封胶连接在导缆孔法兰板上，所述密封板和导缆孔法兰板之间设置橡胶垫环，所述密封板和导缆孔法兰板连接处利用强力胶带粘接密封。
  3. 如权利要求1所述的FLNG船舶系泊密封装置，其特征在于：所述密封腔，包括密封盖板，所述密封盖板上焊接有导向管，所述导向管上套结有橡胶伸缩管，所述导向管和橡胶伸缩管连接处利用强力胶带粘接密封，所述密封盖板通过紧固件固定在导缆孔法兰板上，所述密封盖板和导缆孔法兰板之间设置橡胶垫环，所述密封盖板和导缆孔法兰板连接处利用强力胶带粘接密封。
  4. 如权利要求1所述的FLNG船舶系泊密封装置，其特征在于：所述密封腔是采用高强PVC气密布制成的一体式密封罩，密封罩上端包裹导缆孔法兰板，密封罩上端和导缆孔法兰板连接处利用强力胶带横向、纵向缠绕固定。
  5. 如权利要求2所述的FLNG船舶系泊密封装置，其特征在于：所述通风管为波浪形管道。
  6. 如权利要求1、2、3、4、5所述的FLNG船舶系泊密封装置，其特征在于：所述强力胶带缠绕密封至少3层。
  7. 如权利要求1、2、3、4、5所述的FLNG船舶系泊密封装置，其特征在于：所述强力胶带采用3M的布基胶带，所述密封胶为强力AB密封胶。
  8. 如权利要求2所述的FLNG船舶系泊密封装置的实施方法，其特征在于：在系泊缆绳安装后，先将密封板中间开孔处下端切割两半，使系泊缆绳穿过密封板，然后将下端切口处用强力胶带多层缠绕，确保密封；密封板上开孔处使用通风管，通风管上端穿过密封板的开孔处，用强力胶带与密封板粘接，确保密封；密封板与导缆孔法兰板中间增加橡胶垫环，用密封胶将橡胶垫环粘接在导缆孔法兰板及 密封板上，再用密封强力胶带将密封板外侧与导缆孔法兰板内侧粘接固定。
  9. 如权利要求3所述的FLNG船舶系泊密封装置的实施方法，其特征在于：在系泊缆绳安装后，先将原固定在带缆桩上带有琵琶头系泊缆绳拆下，将系泊缆绳琵琶头穿过密封盖板上导向管、橡胶伸缩管及橡胶垫环，然后用紧固件将密封盖板、橡胶垫环固定在导缆孔法兰板上。
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