WO2016110076A1 - 一种可拆卸式深海缆用收卷绞车 - Google Patents

一种可拆卸式深海缆用收卷绞车 Download PDF

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Publication number
WO2016110076A1
WO2016110076A1 PCT/CN2015/083677 CN2015083677W WO2016110076A1 WO 2016110076 A1 WO2016110076 A1 WO 2016110076A1 CN 2015083677 W CN2015083677 W CN 2015083677W WO 2016110076 A1 WO2016110076 A1 WO 2016110076A1
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Prior art keywords
winch
cable
detachable
submarine cable
iron
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PCT/CN2015/083677
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English (en)
French (fr)
Inventor
蔡炳余
潘盼
谭爱林
薛建林
张建民
谢书鸿
朱晓光
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中天科技海缆有限公司
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Priority to SG11201608677VA priority Critical patent/SG11201608677VA/en
Publication of WO2016110076A1 publication Critical patent/WO2016110076A1/zh

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
    • B66D1/00—Rope, cable, or chain winding mechanisms; Capstans
    • B66D1/28—Other constructional details
    • B66D1/30—Rope, cable, or chain drums or barrels
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
    • B66D1/00—Rope, cable, or chain winding mechanisms; Capstans
    • B66D1/28—Other constructional details
    • B66D1/36—Guiding, or otherwise ensuring winding in an orderly manner, of ropes, cables, or chains
    • B66D1/38—Guiding, or otherwise ensuring winding in an orderly manner, of ropes, cables, or chains by means of guides movable relative to drum or barrel
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
    • B66D1/00—Rope, cable, or chain winding mechanisms; Capstans
    • B66D1/28—Other constructional details
    • B66D1/30—Rope, cable, or chain drums or barrels
    • B66D1/34—Attachment of ropes or cables to drums or barrels

Definitions

  • the invention belongs to the technical field of seabed resource development, and particularly relates to a deep sea cable winding winch for storage, transportation and construction.
  • Deepwater operations face three major challenges: the retractable winch system, the dynamic response of the marine environment, and positioning and control technology.
  • the marine retractable winch system includes a winch, coiled wire rope or submarine cable, heave compensation device, support frame and ancillary equipment.
  • the retractable winch system has been deeply improved and upgraded, including the optimized design of the relative size and load of the structure, the efficiency improvement brought by the driving method, the use of fishing, cargo lifting to the deep sea. Cable and sea pipe laying.
  • the sea cable on the winch not only considers the mechanical characteristics of the multi-layer coil accumulation process, but also pays attention to protecting the macroscopic and microscopic safety performance between the units in the cable core under the action of the pressing force.
  • Engineering problems encountered during retractable winches during production, storage, and construction include cable lamination, flange breakage, flange edge wear and crushing, and kinking and "birdcage" accidents during submarine construction. These accidents involve the structural design of the winch disc and the cable cabling technology. Once the structural defects of the winch are neglected and the storage method is incorrect, it may cause the entire submarine cable to be scrapped, and the cost of repair or replacement is up to several million dollars.
  • the present invention relates to a belt twisting, flange fracture, flange edge wear, and twisting of a cable subjected to tension coiling, an armor layer "birdcage", etc., which are faced by a conventional winch when facing deep sea operations.
  • the winding winch of the flange is fitted with a detachable hub groove and a flanged trapezoidal plate.
  • the submarine cable can achieve stable cable routing and upper layer transition under low tension traction, and the winch system can be adapted to different construction conditions and The technical parameters of the submarine cable are improved and reused.
  • a detachable deep sea cable winding winch includes a winch body, and the hub of the winch body is covered with a detachable iron sheet with a groove, and the cone body of the winch body The inner side of the blue is covered with a detachable stepped iron plate, which is a shell structure, and a tapered flange is used to fix the tapered flange to the main shaft.
  • the grooves on the iron sheet are helically distributed, the groove depth being less than a quarter of the diameter of the cross-section of the submarine cable, and the spiral groove pitch being greater than the diameter of the submarine cable.
  • each step of the iron plate is matched with a groove on the iron sheet, and each step is provided with a groove.
  • the height of the first step of the bottom surface of the iron plate is greater than half of the diameter of the submarine cable, and then the step height of each layer is higher than the first step height, and the step width is one-half of the diameter of the submarine cable.
  • the stepped vertical surface of the iron plate is arranged to be deflected inward, and the skew angle is 8° to 10°.
  • the number of webs per side of the trapezoidal web is not less than 8 spokes.
  • the present invention reduces the traction tension used in the cable discharging process and reduces the upper submarine cable.
  • the grooved and stepped iron plates covering both the hub and the flange can be replaced according to the requirements of different sea cables, the winch reuse rate is high, and the flange resistance to lateral deformation is improved.
  • Figure 1 is a schematic view of the overall structure of the present invention.
  • FIG. 2 is a schematic view showing the structure of a grooved hub and a stepped flange according to the present invention.
  • Figure 3 is a schematic view showing the flange housing and the web of the present invention.
  • Figure 4 is a schematic view showing the structure of the winch cable line of the present invention.
  • Figure 5 is a schematic view showing the structure of a conventional winch cable line.
  • a detachable deep sea cable winding winch includes a winch body 1 , and the hub of the winch body 1 is covered with a detachable metal sheet 2 with a groove, the winch body
  • the inside of the tapered flange of 1 is covered with a detachable stepped iron plate 3 which is a housing structure and which is fixed by a trapezoidal web 5 with a tapered flange.
  • the winch body is shown in Figure 1, including a smooth cylindrical flange and a tapered flange.
  • the flange is a thin-walled structure of the housing, which is funnel-shaped and supported by the trapezoidal web 5 and fixed to the central spindle.
  • the number of webs on each side of the flange is not less than 8 spokes, and the symmetric distribution is welded between the flange and the main shaft.
  • the combination of the tapered flange and the web 5 enhances the ability of the winch to resist lateral deformation during cable routing, as shown in Figure 3.
  • the flange position iron plate 3 is composed of three to four pieces, which can be easily disassembled and adjusted for azimuth.
  • Each step of the ladder design is made up of a transition layer from the lower layer to the upper layer, and the cable can be directly transitioned to the upper layer from the coiled to the flange position.
  • the first step height of the flange position iron plate 3 is greater than one-half of the diameter of the submarine cable, and then the step height of each layer is greater than the first step height but smaller than the submarine cable diameter, and the step width is about one-half the diameter of the submarine cable.
  • the step is designed to be inclined, and the vertical bottom is inclined inward by 8 to 10 degrees, as shown in FIG.
  • the traditional winch flange is welded to the hub by vertical iron plates. See Figure 5.
  • the submarine cable is arranged along the groove formed by the lower submarine cable, and the groove is easily formed at the edge of the flange. Sitting in the groove is very long and is easily exposed to the pressure of the upper cable and embedded in the groove.
  • the present invention employs a grooved iron sheet 2 which can be circumferentially divided into a plurality of independent aliquots to cover the hub.
  • the groove is distributed in a thread, the groove depth is less than a quarter of the diameter of the submarine cable, and the pitch of the spiral groove is slightly larger than the diameter of the submarine cable, which is about 1.05 to 1.10 times the diameter of the submarine cable, as shown in FIG. 2 .
  • each submarine cable can be fixed during the winding process, and in particular, no collapse and jam can be formed in the transitional region of the flange position.
  • the whole system becomes a dynamic and stable structure, which can meet the requirements of harsh marine environment and can meet the high-intensity load carrying capacity.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Laying Of Electric Cables Or Lines Outside (AREA)
  • Electric Cable Installation (AREA)

Abstract

一种可拆卸式深海缆用收卷绞车，包括绞车本体（1），所述绞车本体（1）的轮毂上覆盖有可拆卸的带凹槽的铁皮（2），所述绞车本体（1）的锥形法兰内侧覆盖有可拆卸的带阶梯状的铁板（3），所述锥形法兰为壳体结构，并采用梯形辐板（5）将锥形法兰与主轴（4）进行固定，所述铁板（3）上的每层阶梯与所述铁皮（2）上的凹槽相匹配，所述每层阶梯上设有坡口。该收卷绞车相对传统储缆绞车可使用较小的牵引张力即能维持缆不沿轮毂轴向侧滑，大大降低了海缆在排缆过程中由底层向上层过渡时缆层压溃的概率，辐板支撑也提升了法兰侧向抗变形能力，并且可根据不同海况要求和海缆技术参数设计、更换轮毂和法兰上的铁皮，提高绞车重复使用率，适合于深海大长度布缆和吊装要求。

Description

一种可拆卸式深海缆用收卷绞车 技术领域
本发明属于海底资源开发技术领域，具体涉及一种储存、运输和施工布放用深海缆收卷绞车。
背景技术
当前海洋工程装备的运营范围从浅水扩展至深水和超深水，产品从固定平台发展到浮水设施和水下生产系统，其作业深水化特点十分明显。而深水作业面临着三大挑战，即收放绞车系统、海洋环境的动态响应以及定位和控制技术。
船用收放绞车系统包括绞车、盘绕钢丝绳或海缆、升沉补偿装置、支撑架及附属设备。作为海上科考和施工的重要设备，收放绞车系统已经得到深入的改进和提升，包括结构尺寸相对与载重的优化设计、驱动方式带来的效率提升、用途由捕鱼、货物吊装到深海海缆和海管铺设。
目前，单根通讯用深海光缆的铺设动辄长达数十公里，收卷绞车存储、运输和布放成为良好的途径。相对于钢丝绳，绞车上的海光缆不仅考虑多层盘绕累积过程中力学特性，更注重保护缆芯中各单元间在挤压力作用下的宏观和微观安全性能。收放绞车在制作、储缆和施工布放过程中遇到的工程问题包括缆层压溃、法兰断裂、法兰边缘磨损压溃以及海缆施工过程中的扭结和“鸟笼”事故。这些事故涉及绞车盘的结构设计和海缆布缆技术，一旦忽视绞车结构缺陷和储缆方式不正确，有可能使得整盘海缆报废，且维修或替换费用高达数百万美元。
发明内容
发明目的：针对传统绞车面临深海作业时面临的缆层压溃、法兰断裂、法兰边缘磨损和缆受张力盘绕出现的打扭、铠装层“鸟笼”等事故，本发明对带锥形法兰的收卷绞车安装可拆卸式轮毂凹槽和法兰梯形板，海缆在较低的张力牵引下可实现稳固的排缆和向上层过渡，并且绞车系统可根据不同的施工条件和海缆技术参数进行改进并重复利用。
技术方案：本发明所述的一种可拆卸式深海缆用收卷绞车，包括绞车本体，所述绞车本体的轮毂上覆盖有可拆卸的带凹槽的铁皮，所述绞车本体的锥形法兰内侧覆盖有可拆卸的带阶梯状的铁板，所述锥形法兰为壳体结构，并采用梯形辐板将锥形法兰与主轴进行固定。
作为优化，所述铁皮上的凹槽呈螺旋状分布，所述凹槽深度低于海缆截面直径的四分之一，螺旋凹槽节距大于海缆直径。
作为优化，所述铁板上的每层阶梯与所述铁皮上的凹槽相匹配，所述每层阶梯上设有坡口。
作为优化，所述铁板上底面第一层阶梯的高度大于海缆直径的一半，随后各层阶梯高度高于第一层阶梯高度，阶梯宽度为海缆直径的二分之一。
作为优化，所述铁板上阶梯竖直面设置成向内偏斜，偏斜角度为8°～10°。
作为优化，所述梯形辐板的每侧辐板数不小于8辐。
有益效果：本发明相比传统绞车系统，降低了排缆过程中使用的牵引张力、减少了上层海缆 嵌入下层海缆的发生几率，尤其是当下层海缆向上层过渡时，降低了由于弯曲半径的突然变化而导致的缆芯受损。同时覆盖在轮毂和法兰上的带凹槽和带台阶式铁板可根据不同海缆使用要求进行更换，绞车重复使用率高，并且法兰抗侧向变形能力得到提升。
附图说明
图1为本发明的整体结构示意图。
图2为本发明带凹槽的轮毂和带阶梯的法兰结构示意图。
图3为本发明的法兰壳体及辐板固定示意图。
图4为本发明的绞车排缆缆层结构示意图。
图5为传统绞车排缆缆层结构示意图。
具体实施方式
下面对本实施例中的各个部件进行一一说明：
如图1到图3所示的一种可拆卸式深海缆用收卷绞车，包括绞车本体1，所述绞车本体1的轮毂上覆盖有可拆卸的带凹槽的铁皮2，所述绞车本体1的锥形法兰内侧覆盖有可拆卸的带阶梯状的铁板3，所述锥形法兰为壳体结构，并采用梯形辐板5将锥形法兰与主轴4进行固定。
绞车本体如图1所示，包括光滑圆筒状法兰，锥形法兰。法兰为壳体薄壁结构，呈漏斗状，由梯形辐板5支撑并与中心主轴固定。每侧法兰处辐板5个数不小于8辐，对称分布焊接在法兰与主轴之间。锥形法兰和辐板5相结合，可增强绞车在排缆过程中抗侧向变形能力，见图3所示。
法兰位置铁板3由三至四块组成，可方便拆卸和调整方位角。其每层阶梯设计由低一层向上一层过渡坡口，海缆在盘绕至法兰位置可直接过渡到上一层。法兰位置铁板3第一层阶梯高度大于海缆直径的二分之一，随后各层阶梯高度大于第一层阶梯高度但小于海缆直径，阶梯宽度约为海缆直径二分之一。为与绞车前方导向轮相匹配，并使缆与阶梯的接触面积增大，将阶梯设计成倾斜状，竖直底面向内倾斜8°～10°，见图4。
传统绞车法兰采用竖直铁板焊接在轮毂上，见图5，在排缆过程中，海缆沿着下层海缆形成的凹槽排布，在法兰边缘处易形成凹槽，海缆坐在凹槽长，极易受到上层海缆的压力而嵌入凹槽内。而本发明采用带凹槽的铁皮2，可沿圆周分成若干独立等分覆盖在轮毂上。凹槽呈螺纹分布，凹槽深度小于海缆直径的四分之一，螺旋凹槽的节距略大于海缆的直径，大约为1.05～1.10倍海缆的直径，见图2所示。
使用本发明中绞车结构，可使得每圈海缆在盘绕过程中都能固定，尤其在法兰位置过渡区域不会形成塌陷和卡住。使得整个系统成为动态稳定结构，可胜任海上恶劣环境要求并能满足高强度载荷承载能力。
以上所述的具体实施例，对本发明专利的技术方案和有益效果进行了进一步详细说明，所应理解的是，以上所述仅为本发明的具体实施例而已，并不用于限制本发明专利，凡在本发明的精神和原则之内，所做的任何修改、等同替换、改进等，均应包含在本发明的保护范围之内。

Claims (6)

  1. 一种可拆卸式深海缆用收卷绞车，包括绞车本体(1)，其特征在于：所述绞车本体(1)的轮毂上覆盖有可拆卸的带凹槽的铁皮(2)，所述绞车本体(1)的锥形法兰内侧覆盖有可拆卸的带阶梯状的铁板(3)，所述锥形法兰为壳体结构，并采用梯形辐板(5)将锥形法兰与主轴(4)进行固定。
  2. 根据权利要求1所述的一种可拆卸式深海缆用收卷绞车，其特征在于：所述铁皮(2)上的凹槽呈螺旋状分布，所述凹槽深度低于海缆截面直径的四分之一，螺旋凹槽节距大于海缆直径。
  3. 根据权利要求1所述的一种可拆卸式深海缆用收卷绞车，其特征在于：所述铁板(3)上的每层阶梯与所述铁皮(2)上的凹槽相匹配，所述每层阶梯上设有坡口。
  4. 根据权利要求1所述的一种可拆卸式深海缆用收卷绞车，其特征在于：所述铁板(3)上底面第一层阶梯的高度大于海缆直径的一半，随后各层阶梯高度高于第一层阶梯高度，阶梯宽度为海缆直径的二分之一。
  5. 根据权利要求1所述的一种可拆卸式深海缆用收卷绞车，其特征在于：所述铁板(3)上阶梯竖直面设置成向内偏斜，偏斜角度为8°～10°。
  6. 根据权利要求1所述的一种可拆卸式深海缆用收卷绞车，其特征在于：所述梯形辐板(5)的每侧辐板数不小于8辐。
PCT/CN2015/083677 2015-01-08 2015-07-09 一种可拆卸式深海缆用收卷绞车 WO2016110076A1 (zh)

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CN104528566A (zh) * 2015-01-08 2015-04-22 中天科技海缆有限公司 一种可拆卸式深海缆用收卷绞车

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