WO2019223770A1 - Opening/closing baffle device for moon pool - Google Patents

Opening/closing baffle device for moon pool Download PDF

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Publication number
WO2019223770A1
WO2019223770A1 PCT/CN2019/088208 CN2019088208W WO2019223770A1 WO 2019223770 A1 WO2019223770 A1 WO 2019223770A1 CN 2019088208 W CN2019088208 W CN 2019088208W WO 2019223770 A1 WO2019223770 A1 WO 2019223770A1
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WO
WIPO (PCT)
Prior art keywords
baffle
moon pool
pulley guide
sides
shaped pulley
Prior art date
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PCT/CN2019/088208
Other languages
French (fr)
Chinese (zh)
Inventor
姚震球
周伟楠
张学丰
孙硕
徐植融
Original Assignee
江苏科技大学
江苏科技大学海洋装备研究院
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Application filed by 江苏科技大学, 江苏科技大学海洋装备研究院 filed Critical 江苏科技大学
Publication of WO2019223770A1 publication Critical patent/WO2019223770A1/en

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B1/00—Hydrodynamic or hydrostatic features of hulls or of hydrofoils
    • B63B1/32—Other means for varying the inherent hydrodynamic characteristics of hulls
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B19/00—Arrangements or adaptations of ports, doors, windows, port-holes, or other openings or covers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B35/00—Vessels or similar floating structures specially adapted for specific purposes and not otherwise provided for
    • B63B35/44—Floating buildings, stores, drilling platforms, or workshops, e.g. carrying water-oil separating devices
    • B63B35/4413—Floating drilling platforms, e.g. carrying water-oil separating devices
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05F—DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; CHECKS FOR WINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
    • E05F17/00—Special devices for shifting a plurality of wings operated simultaneously
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05F—DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; CHECKS FOR WINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
    • E05F17/00—Special devices for shifting a plurality of wings operated simultaneously
    • E05F2017/005—Special devices for shifting a plurality of wings operated simultaneously for sliding wings
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
    • E05Y2900/00—Application of doors, windows, wings or fittings thereof
    • E05Y2900/50—Application of doors, windows, wings or fittings thereof for vehicles
    • E05Y2900/514—Application of doors, windows, wings or fittings thereof for vehicles for ships
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T70/00—Maritime or waterways transport
    • Y02T70/10—Measures concerning design or construction of watercraft hulls

Definitions

  • the invention belongs to the technical field of ships and ocean engineering, and relates to a device for reducing liquid sloshing in a moon pool of a drilling ship or a drilling platform, in particular to a baffle device capable of opening and closing the moon pool.
  • the moon pool is generally located in the middle of the platform and leads directly from the upper deck to the bottom.
  • a variety of drilling equipment and pipelines pass from Yuechi for mining work. Due to the direct contact between the moon pool and the seawater, the seawater will generate vortex and wave climb after contacting the wall of the moon pool. Under the combined action of wind, waves, and currents, seawater also forms vertical "piston" motion and horizontal “sloshing" motion. Over time, it will cause impact damage to marine engineering structures; at the same time, the oscillating movements of the marine engineering structures will be exacerbated, making the working and resting environment worse, which will have a huge impact on marine operations and daily life.
  • the incoming stream first meets the front of the moon pool, forming a vortex.
  • the vortex continues to expand along the direction of the water flow. After reaching the rear edge of the moon pool, it collides with the pool wall, causing the waves to climb. Due to the effect of wind waves, the liquid level in the pool will also produce severe oscillation. Therefore, it is very important to design a device that can effectively reduce wave climb and wave oscillation.
  • the main measures currently adopted are: adding attachments to the structure of the moon pool, changing the shape of the moon pool, and installing an openable and closable movable baffle at the bottom of the moon pool.
  • the research on the drag reduction of the pool is mainly focused on the installation of damping plates.
  • the damping plates are generally placed on the wall of the moon pool and the bottom of the moon pool. It is mainly used to suppress the wave climbing, avoid deck overflow, and stop the impact of seawater on the marine engineering structure. .
  • the sloshing of the marine engineering structure is reduced, and the liquid sloshing in the moon pool of the ship or the marine engineering structure is reduced.
  • the technical problem to be solved by the present invention is to provide an openable and closable moon pool baffle device, which is controlled by a motor drive device and adopts wave energy to control the opening and closing of the baffle.
  • the baffle When the baffle is opened, the drilling ship or drilling platform performs normal operation.
  • the baffle plate will not affect drilling equipment; when the baffle plate is closed, seawater is prevented from entering the moon pool, thereby avoiding wave climbing to impact the wall of the moon pool, reducing the impact on the moon pool, and ensuring normal drilling operations.
  • an openable and closable moon pool baffle device which is innovative in that a U-shaped pulley guide rail with a C-shaped cross section is symmetrically arranged at both ends of the moon pool, and A plurality of baffles are symmetrically arranged on both sides of the moon pool, and two ends of each baffle shaft are connected with a pulley through a round shaft.
  • the two ends of the baffle are placed in a U-shaped pulley guide at the opposite end, so that the pulley can Sliding along U-shaped pulley guide rails; connecting rods are connected between the two adjacent circular shafts to connect the two adjacent baffles;
  • a plurality of square openings that cooperate with the baffle are symmetrically provided on both sides of each side U-shaped pulley guide, and electromagnetic card slot mounting seats are symmetrically provided on both sides of each side U-shaped pulley guide, and each of the electromagnetic card slots
  • a plurality of electromagnetic card slots matching the square opening and contacting the inner wall of the U-shaped pulley guide rail are arranged on the mounting base from top to bottom;
  • the openable and closable moon pool baffle device further includes motor drive devices provided at both ends of the moon pool.
  • the motor drive devices include motors fixed in cabins on both sides of the moon pool and symmetrically arranged on both sides of the moon pool, and are located at The U-shaped pulley guide and the fixed pulley set on the upper part of the motor, the motor driving device further comprises a cable, and the cable bypasses the fixed pulley set to connect the motor and the baffle.
  • the baffle has a rectangular shell structure, and horizontal ribs and vertical ribs which support the baffle and are interlaced with each other are provided in the shell.
  • the size of the long side of the baffle is denoted as a
  • the size of the short side is denoted as b
  • anti-collision pads are also provided on the long sides of the two sides of the baffle.
  • the electromagnetic card slot includes a right-angled triangular card slot, a spring, and an electromagnetic control device sequentially arranged from the inside to the outside, and a right-angled edge of the right-angled triangular card slot is in contact with the inner wall of the U-shaped pulley guide through a square opening.
  • the opening and closing of the baffle is controlled by a motor drive device and using wave energy.
  • the baffle When the baffle is opened, the drilling ship or drilling platform performs normal drilling operations, and the baffle will not affect the drilling equipment.
  • the plate When the plate is closed, the seawater is prevented from entering the moon pool, thereby avoiding the wave climbing to impact the moon pool wall, reducing the impact on the moon pool, and ensuring the normal operation of the drilling operation; therefore, the baffle device of the present invention has a simple and clever structure and reduces the wave impact.
  • the device of the moon pool's internal structure a device that alleviates the impact of seawater on the platform and guarantees the platform to work normally and stably under various working conditions;
  • the present invention can open and close the moon pool baffle device.
  • the openable and closable moon pool baffle is arranged on the side wall of the moon pool, occupying a small volume, and will not have a large impact on normal drilling operations; at the same time, the card slot Relying on electromagnetic drive, the baffle can be moved up cleverly using wave energy, reducing energy consumption and saving costs;
  • the present invention can open and close the moon pool baffle device, wherein the baffle adopts a shell structure, the structure is lightweight, and the longitudinal and transverse aggregates are arranged inside, which guarantees the structural strength and reliability while ensuring its flexibility;
  • the present invention can open and close the moon pool baffle device, wherein the side wall of the baffle is provided with a corrosion-resistant anti-collision pad, so that the baffle has better sealing, prevents waves from impacting the moon pool, and reduces damage to drilling equipment;
  • the present invention can open and close the moon pool baffle device, wherein when the baffle closes and slides, the electromagnet is energized, and the right-angled triangle card slot enters the inside of the guide rail, so that the baffle slides down more easily, and the baffle is closed;
  • the electromagnet is de-energized, and the right-angled triangle card slot is extended by the spring under the action of the spring.
  • the baffle slides upward under the action of the wave and the motor drive device the pulley moves along the slope of the card slot When the pulley slides over the slot, the slot is not under pressure and pops out of the guide under the action of the spring, which prevents the pulley from falling. ;
  • This structure can use the wave energy to move the baffle up cleverly, reducing the pressure of the motor driving device.
  • FIG. 1 is a schematic structural diagram of an openable and closable moon pool baffle device according to the present invention when it is opened.
  • FIG. 2 is a schematic structural diagram of the openable and closable moon pool baffle device according to the present invention when it is closed.
  • FIG. 3 is a schematic structural diagram of a baffle in an openable and closable moon pool baffle device according to the present invention.
  • FIG. 4 is a side view of two adjacent baffles in the openable and closable moon pool baffle device according to the present invention.
  • the moon pool baffle device can be opened and closed.
  • U-shaped pulley guide rails 4 having a C-shaped cross section are symmetrically arranged at both ends of the moon pool, and four stops are symmetrically arranged on both sides of the moon pool.
  • Plate 1 as shown in FIG. 4, the axial ends of each baffle 1 are connected with pulleys 12 through circular shafts 1-4, and the pulleys 12 at both ends are placed in U-shaped pulley guides 4 opposite to each other, so that the pulley 1 can Sliding along the U-shaped pulley guide 4; a connecting rod 13 is connected between two adjacent circular shafts 1-4, so that the two adjacent baffles 1 are connected.
  • the specific structure of the baffle 1 is shown in FIG. 3.
  • the baffle 1 has a rectangular shell structure.
  • the length of the baffle 1 is denoted by a, and the size of the short side is denoted by b.
  • the thickness of the baffle 1 is 20 mm.
  • the thickness of the baffle 1 is 30 mm.
  • the material is Q235 high-strength steel.
  • the baffle 1 In order to reduce the driving power consumption of the motor, the quality of the baffle needs to be controlled during the design of the baffle, so as to avoid excessive weight of the baffle and increase the energy consumption of the motor, the baffle 1 is designed as a hollow casing structure. At the same time, in order to ensure the strength of the structure, horizontal ribs 1-3 and vertical ribs 1-2 supporting the baffle 1 are arranged in the shell to prevent the baffle 1 from being damaged by the wave impact. In addition, anti-collision pads 1-1 are also provided on the long sides on both sides of the baffle plate 1, so that the baffle plate has better sealing performance, prevents waves from impacting the moon pool, and reduces damage to drilling equipment.
  • the crash pad 1-1 is made of a rubber material, and the crash pad 1-1 can withstand a large impact force. In order to reduce the sliding friction resistance of the rubber pad 1-1, it is in contact with the rubber pad 1-1.
  • the surface of the baffle should be treated with a certain smoothness, such as using penetrating and sealing treatment, and applying special coatings that can reduce the outer surface friction coefficient.
  • materials with low friction coefficient, low temperature resistance and wear resistance can be installed on the outer surface of the rubber pad, such as polytetrafluoroethylene.
  • each electromagnetic card slot mounting seat is provided with four electromagnetic card slots 5 which cooperate with a square opening and contact the inner wall of the U-shaped pulley guide 4 from top to bottom;
  • the electromagnetic card slot 5 includes a right-angled triangle arranged from the inside to the outside
  • the right triangle card slot 51 and the spring 52 are made of steel and can be controlled by electromagnetic The device 53 controls its entry and exit.
  • the openable and closable moon pool baffle device also includes motor drive devices provided at both ends of the moon pool.
  • the motor drive device includes motors 2 fixed in the cabins on both sides of the moon pool and symmetrically arranged on both sides of the moon pool and located on U-shaped pulleys.
  • the guide rail 4 and the fixed pulley group 3 on the upper part of the motor 2.
  • the motor driving device further includes a cable. The cable bypasses the fixed pulley group 3 and connects the motor 2 and the baffle plate 1.
  • the motor 2 can realize forward and reverse rotation, thereby driving the opening and closing of the baffle plate.
  • Each pulley group 3 is composed of two fixed pulleys, which are respectively arranged on the upper part of the baffle 1 and the upper part of the motor 2 to change the direction of the cable pulling force and convert the downward pulling force of the motor 2 to the upward pulling force of the baffle 1.
  • the motor 2 is turned over to retract the cable, and the cable drives the baffle 1 to move up.
  • the electromagnetic control device 53 is powered off, and the right-angled triangle card slot 51 is ejected by the spring 52. Due to the special nature of the moon pool structure, the seawater mainly does the heave motion in the moonpool. When the seawater surges, it will drive the baffle 1 Move up, the pulleys 12 on both sides of the baffle 1 slide up along the U-shaped pulley guide rail 4. When they contact the inclined surface of the right-angled triangular slot 51, they will squeeze the right-angled triangular slot 51 and continue to move up.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Ocean & Marine Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Other Liquid Machine Or Engine Such As Wave Power Use (AREA)

Abstract

An opening/closing baffle device for a moon pool. A U-shaped pulley guide rail (4) of which the section is C-shaped is symmetrically provided at two ends inside the moon pool. Several baffles (1) are symmetrically arranged on two sides of the moon pool. Two axial ends of each baffle (1) are connected to corresponding pulleys (12) by means of corresponding circular shafts (1-4). The pulleys (12) at two ends are provided in the U-shaped pulley guide rail (4) corresponding to the ends, and a connecting rod (13) is also connected between two adjacent circular shafts (1-4). Several square openings matching the baffles (1) and electromagnetic slot mounting bases are symmetrically arranged on two sides of each U-shaped pulley guide rail (4). Several electromagnetic slots (5) matching the square openings and in contact with the inner wall of the U-shaped pulley guide rail (4) are arranged on the electromagnetic slot mounting base from top to bottom, and the electromagnetic slots (5) are driven by motor driving devices arranged at two ends of the moon pool. The baffle device is simple in structure, reduces the influence of waves on the internal structure of the moon pool, absorbs the impact of seawater on a platform, and ensures the normal and stable operation of the platform under different working conditions.

Description

一种可开闭月池挡板装置Openable and closable moon pool baffle device 技术领域Technical field
本发明属于船舶与海洋工程技术领域，涉及一种减小钻井船或钻井平台月池中液体晃荡的装置，特别涉及一种可开闭月池挡板装置。The invention belongs to the technical field of ships and ocean engineering, and relates to a device for reducing liquid sloshing in a moon pool of a drilling ship or a drilling platform, in particular to a baffle device capable of opening and closing the moon pool.
背景技术Background technique
随着人类对石油天然气能源的需求增加，陆地资源的开发已经不能满足现有的石油供应，海上石油勘探和开发刻不容缓，各式新型的海洋装备在此新形势下不断涌现。海洋资源成为人类获取能源的一大宝地，尤以海洋石油为重点开采对象，且逐渐由浅海转向深海。钻井船和各类钻井平台凭借其钻探水域深，灵活性好等优势脱颖而出。目前进行深海钻探的海洋结构物主要为各类钻井船和各类钻井平台。在钻井船和各类钻井平台上，为了放置钻井设备，保证钻井时的稳定，都会布置有月池这一结构。月池一般位于平台中部，自上甲板直通底部。各种钻井设备和管道从月池通过进行开采工作。由于月池和海水直接接触，海水接触到月池池壁后会产生漩涡和波浪的爬升。在风、波、流的共同作用下，海水也会形成垂直的“活塞”运动和水平方向的“晃荡”运动。久而久之，对海洋工程结构造成冲击破坏；同时加剧海洋工程结构各自由度的摇荡运动，使得工作以及休息环境变得恶劣，对海洋作业和平日生活带来巨大的影响。With the increase of human demand for oil and natural gas energy, the development of land resources has been unable to meet the existing oil supply, and offshore oil exploration and development are urgent. Various new types of marine equipment are constantly emerging under this new situation. Marine resources have become a huge treasure trove of energy for human beings, especially marine oil as the main mining object, and they have gradually shifted from shallow to deep seas. Drilling vessels and various types of drilling platforms stand out due to their deep water drilling and good flexibility. The marine structures currently engaged in deep-sea drilling are mainly various types of drilling vessels and various drilling platforms. In order to place drilling equipment on drilling vessels and various drilling platforms to ensure stability during drilling, the structure of a moon pool will be arranged. The moon pool is generally located in the middle of the platform and leads directly from the upper deck to the bottom. A variety of drilling equipment and pipelines pass from Yuechi for mining work. Due to the direct contact between the moon pool and the seawater, the seawater will generate vortex and wave climb after contacting the wall of the moon pool. Under the combined action of wind, waves, and currents, seawater also forms vertical "piston" motion and horizontal "sloshing" motion. Over time, it will cause impact damage to marine engineering structures; at the same time, the oscillating movements of the marine engineering structures will be exacerbated, making the working and resting environment worse, which will have a huge impact on marine operations and daily life.
对于月池结构，当结构物航行时，来流首先和月池的前沿相遇，形成漩涡，漩涡沿水流方向不断扩大，在达到月池后沿处，和池壁碰撞，造成波浪的爬升，月池中的液面由于风波的作用，也会产生剧烈的振荡作用，因此，设计一种能有效减小波浪爬升和波浪振荡的装置是十分重要的。For the structure of the moon pool, when the structure sails, the incoming stream first meets the front of the moon pool, forming a vortex. The vortex continues to expand along the direction of the water flow. After reaching the rear edge of the moon pool, it collides with the pool wall, causing the waves to climb. Due to the effect of wind waves, the liquid level in the pool will also produce severe oscillation. Therefore, it is very important to design a device that can effectively reduce wave climb and wave oscillation.
为了应对月池的这些不利影响，目前主要采用的措施有：在月池结构上添加附加物、改变月池形状和在月池底部加设可开闭式的活动挡板，目前国内外在月池减阻的研究主要集中在加设阻尼板这一方面，阻尼板一般放置于月池壁面和月池底部，主要用于抑制波浪的爬升，避免甲板溢流、遏止海水对海洋工程结构的冲击。进而减小海洋工程结构物的摇荡的减小船舶或海洋工程结构物的月池中液体晃荡。然而，由于月池空间有限，添加阻尼板势必会减小月池的有效作业空间，附加物的存在对钻井设备的布置也会有一定的影响，妨碍了正常的钻井作业。现有的月池减晃措施在月池形式也有所做改变，如将矩形月池角部倒成三角形或圆角，这样的结构能提高月池的强度，但是不会抑制月池内的波浪的爬升，也不会阻止月池内流体的前后相遇造成共振，同时浪费了很多的月池空间。In order to deal with these adverse effects of the moon pool, the main measures currently adopted are: adding attachments to the structure of the moon pool, changing the shape of the moon pool, and installing an openable and closable movable baffle at the bottom of the moon pool. The research on the drag reduction of the pool is mainly focused on the installation of damping plates. The damping plates are generally placed on the wall of the moon pool and the bottom of the moon pool. It is mainly used to suppress the wave climbing, avoid deck overflow, and stop the impact of seawater on the marine engineering structure. . Furthermore, the sloshing of the marine engineering structure is reduced, and the liquid sloshing in the moon pool of the ship or the marine engineering structure is reduced. However, due to the limited space of the moon pool, the addition of a damping plate will inevitably reduce the effective operating space of the moon pool. The presence of additional materials will also have a certain impact on the layout of the drilling equipment, which hinders normal drilling operations. The existing lunar pond mitigation measures have also been changed in the form of the moon pond, such as inverting the corners of the rectangular moon pond into triangles or rounded corners. This structure can increase the strength of the moon pond, but it will not inhibit the waves in the moon pond. Climbing will not prevent the fluids in the moon pool from meeting back and forth to cause resonance, and at the same time a lot of moon pool space is wasted.
发明内容Summary of the Invention
本发明要解决的技术问题是提供一种可开闭月池挡板装置，通过电机驱动装置、并采用波浪能控制挡板的开闭，当挡板开启时，钻井船或钻井平台进行正常的钻井作业，挡板不会对钻井设备造成影响；当挡板闭合时，阻止海水进入月池内部，从而避免波浪爬升冲击月池壁面，减小对月池的影响，保障钻井作业的正常进行。The technical problem to be solved by the present invention is to provide an openable and closable moon pool baffle device, which is controlled by a motor drive device and adopts wave energy to control the opening and closing of the baffle. When the baffle is opened, the drilling ship or drilling platform performs normal operation. During drilling operations, the baffle plate will not affect drilling equipment; when the baffle plate is closed, seawater is prevented from entering the moon pool, thereby avoiding wave climbing to impact the wall of the moon pool, reducing the impact on the moon pool, and ensuring normal drilling operations.
为解决上述技术问题，本发明的技术方案为：一种可开闭月池挡板装置，其创新点在于：在月池内两端部对称设置有截面呈C字型的U型滑轮导轨，在所述月池两侧对称设置有若干个挡板，所述各挡板轴向两端通过圆轴连接有滑轮，所述两端滑轮置于端部对于的U型滑轮导轨内，使滑轮可沿着U型滑轮导轨滑动；所述相邻两圆轴之间连接有连杆，使相邻两挡板相连；In order to solve the above technical problems, the technical solution of the present invention is: an openable and closable moon pool baffle device, which is innovative in that a U-shaped pulley guide rail with a C-shaped cross section is symmetrically arranged at both ends of the moon pool, and A plurality of baffles are symmetrically arranged on both sides of the moon pool, and two ends of each baffle shaft are connected with a pulley through a round shaft. The two ends of the baffle are placed in a U-shaped pulley guide at the opposite end, so that the pulley can Sliding along U-shaped pulley guide rails; connecting rods are connected between the two adjacent circular shafts to connect the two adjacent baffles;
在各侧部U型滑轮导轨的两侧对称设有若干个与挡板配合的方形开口，在各侧部U型滑轮导轨的两侧对称设有电磁卡槽安装座，所述各电磁卡槽安装座上自上而下设置有若干个与方形开口配合且与U型滑轮导轨内壁接触的电磁卡槽；A plurality of square openings that cooperate with the baffle are symmetrically provided on both sides of each side U-shaped pulley guide, and electromagnetic card slot mounting seats are symmetrically provided on both sides of each side U-shaped pulley guide, and each of the electromagnetic card slots A plurality of electromagnetic card slots matching the square opening and contacting the inner wall of the U-shaped pulley guide rail are arranged on the mounting base from top to bottom;
所述可开闭月池挡板装置还包括设置在月池两端的电机驱动装置，所述电机驱动装置包括固定在月池两侧的舱室内的电机以及对称设置在月池两侧，且位于U型滑轮导轨和电机上部的定滑轮组，所述电机驱动装置还包括缆绳，所述缆绳绕过定滑轮组连接电机和挡板。The openable and closable moon pool baffle device further includes motor drive devices provided at both ends of the moon pool. The motor drive devices include motors fixed in cabins on both sides of the moon pool and symmetrically arranged on both sides of the moon pool, and are located at The U-shaped pulley guide and the fixed pulley set on the upper part of the motor, the motor driving device further comprises a cable, and the cable bypasses the fixed pulley set to connect the motor and the baffle.
进一步步地，所述挡板呈长方形壳体结构，所述壳体内设有支撑挡板，且相互交错的水平筋板和垂直筋板。Further, the baffle has a rectangular shell structure, and horizontal ribs and vertical ribs which support the baffle and are interlaced with each other are provided in the shell.
进一步地，所述挡板的长边尺寸记为a，短边尺寸记为b，且长边与短边的比值为a：b＝3.5～5。Further, the size of the long side of the baffle is denoted as a, the size of the short side is denoted as b, and the ratio of the long side to the short side is a: b = 3.5-5.
进一步地，所述挡板两侧的长边上还设有防撞垫。Further, anti-collision pads are also provided on the long sides of the two sides of the baffle.
进一步地，所述电磁卡槽包括由内至外依次设置的直角三角形卡槽、弹簧和电磁控制装置，且直角三角形卡槽的直角边通过方形开口与U型滑轮导轨内壁接触。Further, the electromagnetic card slot includes a right-angled triangular card slot, a spring, and an electromagnetic control device sequentially arranged from the inside to the outside, and a right-angled edge of the right-angled triangular card slot is in contact with the inner wall of the U-shaped pulley guide through a square opening.
本发明的优点在于：The advantages of the present invention are:
(1)本发明通过电机驱动装置、并采用波浪能控制挡板的开闭，当挡板开启时，钻井船或钻井平台进行正常的钻井作业，挡板不会对钻井设备造成影响；当挡板闭合时，阻止海水进入月池内部，从而避免波浪爬升冲击月池壁面，减小对月池的影响，保障钻井作业的正常进行；因而，本发明挡板装置结构简单巧妙，减小波浪对月池内部结构的影响，缓解海水对平台冲击，保证平台在各种工况下正常稳定工作的装置；(1) In the present invention, the opening and closing of the baffle is controlled by a motor drive device and using wave energy. When the baffle is opened, the drilling ship or drilling platform performs normal drilling operations, and the baffle will not affect the drilling equipment. When the plate is closed, the seawater is prevented from entering the moon pool, thereby avoiding the wave climbing to impact the moon pool wall, reducing the impact on the moon pool, and ensuring the normal operation of the drilling operation; therefore, the baffle device of the present invention has a simple and clever structure and reduces the wave impact. The device of the moon pool's internal structure, a device that alleviates the impact of seawater on the platform and guarantees the platform to work normally and stably under various working conditions;
(2)本发明可开闭月池挡板装置，可开闭月池挡板布置在月池侧壁，占用体积较小，对正 常的钻井作业不会产生较大的影响；同时，卡槽依靠电磁驱动，可巧妙采用波浪能使挡板上移，降低能耗，节约成本；(2) The present invention can open and close the moon pool baffle device. The openable and closable moon pool baffle is arranged on the side wall of the moon pool, occupying a small volume, and will not have a large impact on normal drilling operations; at the same time, the card slot Relying on electromagnetic drive, the baffle can be moved up cleverly using wave energy, reducing energy consumption and saving costs;
(3)本发明可开闭月池挡板装置，其中，挡板采用壳体结构，结构轻便，内部布置有纵向与横向骨材，在保证结构强度可靠性的同时也保证其灵活性；(3) The present invention can open and close the moon pool baffle device, wherein the baffle adopts a shell structure, the structure is lightweight, and the longitudinal and transverse aggregates are arranged inside, which guarantees the structural strength and reliability while ensuring its flexibility;
(4)本发明可开闭月池挡板装置，其中，挡板侧壁布置有耐腐蚀防撞垫，使挡板有较好的密封性，防止波浪冲击月池，减少钻井设备损伤；(4) The present invention can open and close the moon pool baffle device, wherein the side wall of the baffle is provided with a corrosion-resistant anti-collision pad, so that the baffle has better sealing, prevents waves from impacting the moon pool, and reduces damage to drilling equipment;
(5)本发明可开闭月池挡板装置，其中，当挡板闭合下滑时，电磁铁通电，直角三角形卡槽进入导轨内部，使挡板较为容易向下滑动，进而使挡板闭合；当挡板上滑时，电磁铁断电，直角三角形卡槽在弹簧的作用下，伸出导轨，当挡板在波浪和电机驱动装置的共同作用下向上滑动时，滑轮沿着卡槽斜面上滑，三角卡槽受到挤压压入导轨，使滑轮能顺利上滑；当滑轮滑过卡槽时，卡槽不受压力并在弹簧的作用下弹出导轨，将滑轮卡住，使其不能下降；此结构可巧妙利用波浪能将挡板上移，减轻了电机驱动装置的压力。(5) The present invention can open and close the moon pool baffle device, wherein when the baffle closes and slides, the electromagnet is energized, and the right-angled triangle card slot enters the inside of the guide rail, so that the baffle slides down more easily, and the baffle is closed; When the baffle slides up, the electromagnet is de-energized, and the right-angled triangle card slot is extended by the spring under the action of the spring. When the baffle slides upward under the action of the wave and the motor drive device, the pulley moves along the slope of the card slot When the pulley slides over the slot, the slot is not under pressure and pops out of the guide under the action of the spring, which prevents the pulley from falling. ; This structure can use the wave energy to move the baffle up cleverly, reducing the pressure of the motor driving device.
附图说明BRIEF DESCRIPTION OF THE DRAWINGS
下面结合附图和具体实施方式对本发明作进一步详细的说明。The present invention will be described in further detail below with reference to the drawings and specific embodiments.
图1为本发明可开闭月池挡板装置开启时的结构示意图。FIG. 1 is a schematic structural diagram of an openable and closable moon pool baffle device according to the present invention when it is opened.
图2为本发明可开闭月池挡板装置关闭时的结构示意图。FIG. 2 is a schematic structural diagram of the openable and closable moon pool baffle device according to the present invention when it is closed.
图3为本发明可开闭月池挡板装置中挡板的结构示意图。FIG. 3 is a schematic structural diagram of a baffle in an openable and closable moon pool baffle device according to the present invention.
图4为本发明可开闭月池挡板装置中相邻两挡板的侧视图。4 is a side view of two adjacent baffles in the openable and closable moon pool baffle device according to the present invention.
具体实施方式Detailed ways
下面的实施例可以使本专业的技术人员更全面地理解本发明，但并不因此将本发明限制在所述的实施例范围之中。The following embodiments may enable a person skilled in the art to more fully understand the present invention, but the present invention is not limited to the scope of the embodiments.
实施例Examples
本实施例可开闭月池挡板装置，如图1所示，在月池内两端部对称设置有截面呈C字型的U型滑轮导轨4，在月池两侧对称设置有四个挡板1，如图4所示，各挡板1轴向两端通过圆轴1-4连接有滑轮12，且两端滑轮12置于端部对于的U型滑轮导轨4内，使滑轮1可沿着U型滑轮导轨4滑动；相邻两圆轴1-4之间连接有连杆13，使相邻两挡板1相连。In this embodiment, the moon pool baffle device can be opened and closed. As shown in FIG. 1, U-shaped pulley guide rails 4 having a C-shaped cross section are symmetrically arranged at both ends of the moon pool, and four stops are symmetrically arranged on both sides of the moon pool. Plate 1, as shown in FIG. 4, the axial ends of each baffle 1 are connected with pulleys 12 through circular shafts 1-4, and the pulleys 12 at both ends are placed in U-shaped pulley guides 4 opposite to each other, so that the pulley 1 can Sliding along the U-shaped pulley guide 4; a connecting rod 13 is connected between two adjacent circular shafts 1-4, so that the two adjacent baffles 1 are connected.
本实施例中，挡板1的具体结构，如图3所示，挡板1呈长方形壳体结构，挡板1的长边尺寸记为a，短边尺寸记为b，且长边与短边的比值为a：b＝3.5～5。当月池长度小于15米时，挡板1厚度取20mm,当长度大于15米时，挡板1厚度取30mm，材料取Q235高强度钢材。为降低电机的驱动功耗，挡板设计时需要控制其质量，避免挡板过重而增加电机 的能耗，故将挡板1设计为空心壳体结构。同时为保证结构物强度，在壳体内设有支撑挡板1，且相互交错的水平筋板1-3和垂直筋板1-2，防止挡板1在波浪冲击作用的导致破坏。此外，挡板1两侧的长边上还设有防撞垫1-1，使挡板有较好的密封性，防止波浪冲击月池，减少钻井设备损伤。In this embodiment, as shown in FIG. 3, the specific structure of the baffle 1 is shown in FIG. 3. The baffle 1 has a rectangular shell structure. The length of the baffle 1 is denoted by a, and the size of the short side is denoted by b. The ratio of the edges is a: b = 3.5 to 5. When the length of the moon pond is less than 15 meters, the thickness of the baffle 1 is 20 mm. When the length is longer than 15 meters, the thickness of the baffle 1 is 30 mm. The material is Q235 high-strength steel. In order to reduce the driving power consumption of the motor, the quality of the baffle needs to be controlled during the design of the baffle, so as to avoid excessive weight of the baffle and increase the energy consumption of the motor, the baffle 1 is designed as a hollow casing structure. At the same time, in order to ensure the strength of the structure, horizontal ribs 1-3 and vertical ribs 1-2 supporting the baffle 1 are arranged in the shell to prevent the baffle 1 from being damaged by the wave impact. In addition, anti-collision pads 1-1 are also provided on the long sides on both sides of the baffle plate 1, so that the baffle plate has better sealing performance, prevents waves from impacting the moon pool, and reduces damage to drilling equipment.
实施例中，防撞垫1-1由橡胶材料制成，防撞垫1-1可承受较大冲击力，为了降低橡胶垫1-1的滑动摩擦阻力，在与橡胶垫1-1相接触的挡板表面要进行一定的光滑处理，如采用渗透密封性处理、涂抹特殊的能降低外表面摩擦系数的涂料等。同时在橡胶垫外表面还可安装具有低摩擦系数、耐低温、耐磨的材料，如聚四氟乙烯材料等。In the embodiment, the crash pad 1-1 is made of a rubber material, and the crash pad 1-1 can withstand a large impact force. In order to reduce the sliding friction resistance of the rubber pad 1-1, it is in contact with the rubber pad 1-1. The surface of the baffle should be treated with a certain smoothness, such as using penetrating and sealing treatment, and applying special coatings that can reduce the outer surface friction coefficient. At the same time, materials with low friction coefficient, low temperature resistance and wear resistance can be installed on the outer surface of the rubber pad, such as polytetrafluoroethylene.
如图1所示，在各侧部U型滑轮导轨4的两侧对称设有四个与挡板配合的方形开口，在各侧部U型滑轮导轨4的两侧对称设有电磁卡槽安装座，各电磁卡槽安装座上自上而下设置有四个与方形开口配合且与U型滑轮导轨4内壁接触的电磁卡槽5；电磁卡槽5包括由内至外依次设置的直角三角形卡槽51、弹簧52和电磁控制装置53，且直角三角形卡槽51的直角边通过方形开口与U型滑轮导轨4内壁接触；直角三角形卡槽51和弹簧52由钢材制成，可依靠电磁控制装置53控制其进出。As shown in FIG. 1, four square openings matching the baffle are symmetrically provided on both sides of each side U-shaped pulley guide 4, and electromagnetic card slots are installed symmetrically on both sides of each side U-shaped pulley guide 4. Seat, each electromagnetic card slot mounting seat is provided with four electromagnetic card slots 5 which cooperate with a square opening and contact the inner wall of the U-shaped pulley guide 4 from top to bottom; the electromagnetic card slot 5 includes a right-angled triangle arranged from the inside to the outside The card slot 51, the spring 52, and the electromagnetic control device 53, and the right side of the right triangle card slot 51 contacts the inner wall of the U-shaped pulley guide rail 4 through a square opening; the right triangle card slot 51 and the spring 52 are made of steel and can be controlled by electromagnetic The device 53 controls its entry and exit.
可开闭月池挡板装置还包括设置在月池两端的电机驱动装置，电机驱动装置包括固定在月池两侧的舱室内的电机2以及对称设置在月池两侧，且位于U型滑轮导轨4和电机2上部的定滑轮组3，电机驱动装置还包括缆绳，缆绳绕过定滑轮组3连接电机2和挡板1，电机2可实现正反旋转，进而带动挡板的开闭。每组滑轮组3有2个定滑轮组成，分别布置在挡板1上部和电机2上部，用以改变缆绳拉力的方向，将电机2向下的拉力转变为给挡板1向上的拉力。当需闭合挡,1时，缆绳放松，放置在月池壁面两侧的挡板1依靠重力沿着U型滑轮导轨4闭合；当需打开挡板1时，缆绳拉紧，带动挡板沿着U型滑轮导轨4向两侧移动。The openable and closable moon pool baffle device also includes motor drive devices provided at both ends of the moon pool. The motor drive device includes motors 2 fixed in the cabins on both sides of the moon pool and symmetrically arranged on both sides of the moon pool and located on U-shaped pulleys. The guide rail 4 and the fixed pulley group 3 on the upper part of the motor 2. The motor driving device further includes a cable. The cable bypasses the fixed pulley group 3 and connects the motor 2 and the baffle plate 1. The motor 2 can realize forward and reverse rotation, thereby driving the opening and closing of the baffle plate. Each pulley group 3 is composed of two fixed pulleys, which are respectively arranged on the upper part of the baffle 1 and the upper part of the motor 2 to change the direction of the cable pulling force and convert the downward pulling force of the motor 2 to the upward pulling force of the baffle 1. When closing the block, 1, the cable is relaxed, and the baffle plates 1 placed on both sides of the wall of the moon pool are closed along the U-shaped pulley guide rail 4 by gravity; when the baffle plate 1 needs to be opened, the cable is tightened and the baffle is moved along The U-shaped pulley guide 4 moves to both sides.
当船舶停止作业或处于航行状态时，如图2所示，需要挡板1闭合时，电磁控制装置53通电产生磁性，并将弹簧52和直角三角形卡槽51吸入方形开口，电机2正转，将缆绳放松，两侧挡板1在重力作用下沿着U型滑轮导轨4下滑，最终闭合关紧，挡板1闭合时能弥补月池大开口结构突变的不足，有效减弱月池内漩涡和波浪的爬升，从而起到减阻的作用；如图1所示，当钻井船处于钻井作业状态时，需要将挡板1开启，此时电机2翻转，将缆绳收起，缆绳带动挡板1上移，同时电磁控制装置53断电，直角三角形卡槽51受弹簧52作用弹出，由于月池结构的特殊性，海水在月池中主要做升沉运动，当海水上涌时，会带动挡板1上移，挡板1两侧的滑轮12沿着U型滑轮导轨4上滑，当接触到直角三角形卡 槽51斜面时会挤压直角三角形卡槽51并继续上移，当滑轮12经过电磁卡槽5后，直角三角形卡槽51在弹,52的作用下弹出并将滑轮12卡住避免其下滑。电磁卡槽4结构巧妙地运用了波浪能控制挡板的运动，降低了电机的功耗，节省了成本。When the ship stops working or is in a sailing state, as shown in FIG. 2, when the baffle 1 needs to be closed, the electromagnetic control device 53 is energized to generate magnetism, and the spring 52 and the right-angled triangular slot 51 are sucked into the square opening, and the motor 2 rotates forward. The cable is relaxed, and the baffle plates 1 on both sides slide along the U-shaped pulley guide rail 4 under the action of gravity, and finally closes tightly. When the baffle plate 1 is closed, it can make up for the shortcomings of the large opening structure of the moon pool, and effectively weaken the vortex and wave in the moon pool. Climbing to reduce drag; as shown in Figure 1, when the drilling vessel is in a drilling operation state, the baffle 1 needs to be opened. At this time, the motor 2 is turned over to retract the cable, and the cable drives the baffle 1 to move up. At the same time, the electromagnetic control device 53 is powered off, and the right-angled triangle card slot 51 is ejected by the spring 52. Due to the special nature of the moon pool structure, the seawater mainly does the heave motion in the moonpool. When the seawater surges, it will drive the baffle 1 Move up, the pulleys 12 on both sides of the baffle 1 slide up along the U-shaped pulley guide rail 4. When they contact the inclined surface of the right-angled triangular slot 51, they will squeeze the right-angled triangular slot 51 and continue to move up. When the pulley 12 passes the electromagnetic card, After slot 5, right angle The triangular slot 51 is ejected under the action of the spring 52, and the pulley 12 is blocked to prevent it from sliding down. The structure of the electromagnetic card slot 4 cleverly uses wave energy to control the movement of the baffle, which reduces the power consumption of the motor and saves costs.
以上显示和描述了本发明的基本原理和主要特征以及本发明的优点。本行业的技术人员应该了解，本发明不受上述实施例的限制，上述实施例和说明书中描述的只是说明本发明的原理，在不脱离本发明精神和范围的前提下，本发明还会有各种变化和改进，这些变化和改进都落入要求保护的本发明范围内。本发明要求保护范围由所附的权利要求书及其等效物界定。The basic principles and main features of the present invention and the advantages of the present invention have been shown and described above. Those skilled in the art should understand that the present invention is not limited by the foregoing embodiments. What is described in the above embodiments and the description is only to explain the principle of the present invention. The present invention will also have the following without departing from the spirit and scope of the present invention. Various changes and improvements fall within the scope of the claimed invention. The scope of protection of the invention is defined by the appended claims and their equivalents.

Claims (5)

  1. 一种可开闭月池挡板装置，其特征在于：在月池内两端部对称设置有截面呈C字型的U型滑轮导轨，在所述月池两侧对称设置有若干个挡板，所述各挡板轴向两端通过圆轴连接有滑轮，所述两端滑轮置于端部对于的U型滑轮导轨内，使滑轮可沿着U型滑轮导轨滑动；所述相邻两圆轴之间连接有连杆，使相邻两挡板相连；A baffle device capable of opening and closing a moon pool, which is characterized in that a U-shaped pulley guide rail with a C-shaped cross section is symmetrically arranged at both ends of the moon pool, and a plurality of baffles are symmetrically arranged on both sides of the moon pool. The axial ends of each baffle are connected with pulleys through a circular shaft, and the pulleys at the two ends are placed in a U-shaped pulley guide opposite to each other, so that the pulley can slide along the U-shaped pulley guide; A connecting rod is connected between the shafts to connect two adjacent baffles;
    在各侧部U型滑轮导轨的两侧对称设有若干个与挡板配合的方形开口，在各侧部U型滑轮导轨的两侧对称设有电磁卡槽安装座，所述各电磁卡槽安装座上自上而下设置有若干个与方形开口配合且与U型滑轮导轨内壁接触的电磁卡槽；A plurality of square openings that cooperate with the baffle are symmetrically provided on both sides of each side U-shaped pulley guide, and electromagnetic card slot mounting seats are symmetrically provided on both sides of each side U-shaped pulley guide, and each of the electromagnetic card slots A plurality of electromagnetic card slots matching the square opening and contacting the inner wall of the U-shaped pulley guide rail are arranged on the mounting base from top to bottom;
    所述可开闭月池挡板装置还包括设置在月池两端的电机驱动装置，所述电机驱动装置包括固定在月池两侧的舱室内的电机以及对称设置在月池两侧，且位于U型滑轮导轨和电机上部的定滑轮组，所述电机驱动装置还包括缆绳，所述缆绳绕过定滑轮组连接电机和挡板。The openable and closable moon pool baffle device further includes motor drive devices provided at both ends of the moon pool. The motor drive devices include motors fixed in cabins on both sides of the moon pool and symmetrically arranged on both sides of the moon pool, and are located at The U-shaped pulley guide and the fixed pulley set on the upper part of the motor, the motor driving device further comprises a cable, and the cable bypasses the fixed pulley set to connect the motor and the baffle.
  2. 根据权利要求1所述的可开闭月池挡板装置，其特征在于：所述挡板呈长方形壳体结构，所述壳体内设有支撑挡板，且相互交错的水平筋板和垂直筋板。The openable and closable moon pool baffle device according to claim 1, wherein the baffle has a rectangular shell structure, and horizontal ribs and vertical ribs which support the baffle and are interlaced with each other are provided in the shell. board.
  3. 根据权利要求1或2所述的可开闭月池挡板装置，其特征在于：所述挡板的长边尺寸记为a，短边尺寸记为b，且长边与短边的比值为a：b＝3.5～5。The openable and closable moon pool baffle device according to claim 1 or 2, wherein the size of the long side of the baffle is denoted by a, the size of the short side is denoted by b, and the ratio of the long side to the short side is a: b = 3.5 to 5.
  4. 根据权利要求1或2所述的可开闭月池挡板装置，其特征在于：所述挡板两侧的长边上还设有防撞垫。The baffle device for an openable and closable moon pool according to claim 1 or 2, wherein: the long sides of both sides of the baffle are further provided with anti-collision pads.
  5. 根据权利要求1所述的可开闭月池挡板装置，其特征在于：所述电磁卡槽包括由内至外依次设置的直角三角形卡槽、弹簧和电磁控制装置，且直角三角形卡槽的直角边通过方形开口与U型滑轮导轨内壁接触。The openable and closable moon pool baffle device according to claim 1, wherein the electromagnetic card slot includes a right-angled triangular card slot, a spring, and an electromagnetic control device which are sequentially arranged from the inside to the outside, and the right-angled triangular card slot is The right-angle side is in contact with the inner wall of the U-shaped pulley guide through the square opening.
PCT/CN2019/088208 2018-05-24 2019-05-23 Opening/closing baffle device for moon pool WO2019223770A1 (en)

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CN108502097B (en) * 2018-05-24 2023-06-30 江苏科技大学 Moon pool baffle device capable of being opened and closed

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