CN108137131A - 焊接膜式储罐膜的膜组合件及含其的膜焊接装置导引系统 - Google Patents

焊接膜式储罐膜的膜组合件及含其的膜焊接装置导引系统 Download PDF

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CN108137131A
CN108137131A CN201680059708.1A CN201680059708A CN108137131A CN 108137131 A CN108137131 A CN 108137131A CN 201680059708 A CN201680059708 A CN 201680059708A CN 108137131 A CN108137131 A CN 108137131A
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朴成祐
黄范锡
姜重圭
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Hanwha Ocean Co Ltd
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Daewoo Shipbuilding and Marine Engineering Co Ltd
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
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    • F17C3/02—Vessels not under pressure with provision for thermal insulation
    • F17C3/025—Bulk storage in barges or on ships
    • F17C3/027—Wallpanels for so-called membrane tanks
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
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    • F17C3/00—Vessels not under pressure
    • F17C3/02—Vessels not under pressure with provision for thermal insulation
    • F17C3/04—Vessels not under pressure with provision for thermal insulation by insulating layers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B25/00—Load-accommodating arrangements, e.g. stowing, trimming; Vessels characterised thereby
    • B63B25/02—Load-accommodating arrangements, e.g. stowing, trimming; Vessels characterised thereby for bulk goods
    • B63B25/08—Load-accommodating arrangements, e.g. stowing, trimming; Vessels characterised thereby for bulk goods fluid
    • B63B25/12—Load-accommodating arrangements, e.g. stowing, trimming; Vessels characterised thereby for bulk goods fluid closed
    • B63B25/16—Load-accommodating arrangements, e.g. stowing, trimming; Vessels characterised thereby for bulk goods fluid closed heat-insulated
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
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    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D90/00—Component parts, details or accessories for large containers
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    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
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    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B25/00—Load-accommodating arrangements, e.g. stowing, trimming; Vessels characterised thereby
    • B63B25/02—Load-accommodating arrangements, e.g. stowing, trimming; Vessels characterised thereby for bulk goods
    • B63B25/08—Load-accommodating arrangements, e.g. stowing, trimming; Vessels characterised thereby for bulk goods fluid
    • B63B2025/087—Load-accommodating arrangements, e.g. stowing, trimming; Vessels characterised thereby for bulk goods fluid comprising self-contained tanks installed in the ship structure as separate units
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B2221/00—Methods and means for joining members or elements
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    • F17C13/00—Details of vessels or of the filling or discharging of vessels
    • F17C13/004—Details of vessels or of the filling or discharging of vessels for large storage vessels not under pressure
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
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    • F17C2201/0185—Shape variable with separating membrane
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    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2201/00—Vessel construction, in particular geometry, arrangement or size
    • F17C2201/05—Size
    • F17C2201/052—Size large (>1000 m3)
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    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2203/00—Vessel construction, in particular walls or details thereof
    • F17C2203/03—Thermal insulations
    • F17C2203/0304—Thermal insulations by solid means
    • F17C2203/0358—Thermal insulations by solid means in form of panels
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2209/00—Vessel construction, in particular methods of manufacturing
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    • F17C2221/00—Handled fluid, in particular type of fluid
    • F17C2221/03—Mixtures
    • F17C2221/032—Hydrocarbons
    • F17C2221/033—Methane, e.g. natural gas, CNG, LNG, GNL, GNC, PLNG
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2223/00—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel
    • F17C2223/01—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel characterised by the phase
    • F17C2223/0146—Two-phase
    • F17C2223/0153—Liquefied gas, e.g. LPG, GPL
    • F17C2223/0161—Liquefied gas, e.g. LPG, GPL cryogenic, e.g. LNG, GNL, PLNG
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Abstract

一种根据本发明的膜焊接装置导引系统包括：锚条带，设置在配置液化气储罐的绝缘系统的绝缘壁上；螺柱，与所述锚条带一体地形成，所述螺柱的中心与所述锚条带的焊接线偏离；以及导轨，耦接至所述螺柱，以形成用于焊接待堆叠于所述绝缘壁上的膜的自动膜焊接装置的路径。因此，本发明使得易于执行膜焊接且使得稳定地导引膜焊接装置。

Description

焊接膜式储罐膜的膜组合件及含其的膜焊接装置导引系统
技术领域
本发明涉及一种用于促进膜式储罐的膜的焊接的膜组合件，以及包含所述膜组合件的膜焊接装置导引系统。
背景技术
天然气(natural gas)是一种化石燃料，含有作为主要组分的甲烷(methane)以及少量的乙烷(ethane)、丙烷(propane)等，且在各种技术领域中作为低污染能源而受到关注。
天然气以气态经由岸上或海上气体管道运输，或以液态通过液化天然气(LNG)运输船运输到远方目的地。LNG是通过将天然气冷却到低温温度(约-163℃或以下)来获得，且体积为气态天然气的约1/600。因此，LNG适合于长距离海路运输。
LNG运输船设置有可储存通过冷却及液化天然气而获得的LNG的LNG储罐(也被称作“LNG货舱”)。由于LNG在常压下的沸点为约-162℃，因此LNG储罐由可耐受低温温度的材料(例如铝钢、不锈钢或35％镍钢)形成以安全地储存LNG，且设计为很好地耐热应力以及热收缩，且防止热干扰。
除设计为通过海路将LNG运输到要求的岸上源的LNG运输船之外，设计为通过海路将LNG运输到要求的岸上源、再气化所述LNG并将再气化的LNG排放到要求的岸上源的LNG再气化容器(LNG regasification vessel；LNG RV)以及例如LNG漂浮、生产、储存以及卸货(floating，production，storage and offloading；FPSO)或LNG漂浮储存及再气化单元(floating storage and regasification unit；FSRU)的漂浮海上结构也设置有此LNG储罐。
LNG-FPSO为设计成在海上液化生产的天然气、将LNG储存在储罐中以及必要时将LNG卸货到LNG运输船的漂浮海上结构。LNG-FSRU为设计成将从LNG运输船卸货的LNG储存在储罐中以及必要时再气化所述LNG并将气化的LNG供应到要求的岸上源的漂浮海上结构。
此类由海路运输LNG或储存LNG的海上船舶(例如，LNG运输船、LNG RV、LNG FPSO以及LNG FSRU)在其中设置有储存低温状态LNG的储罐。
视其绝缘体是否直接接收货物的负荷而定，此储罐分为独立储罐和膜式储罐。另外，膜式储罐分为GTT NO 96式储罐以及TGZ Mark III式储罐，且独立储罐分为MOSS式储罐以及IHI-SPB式储罐。
大体来说，膜式储罐具有其中第一膜和第二膜以及第一绝热壁和第二绝热壁交替地堆叠在储罐的内壁上的结构。
为方便起见，“第一”组件是指堆叠结构中的上部部件。
因此，膜式储罐具有其中第二膜堆叠在第二绝热壁上且第一绝热壁和第一膜连续堆叠在第二膜上的结构。
膜由钢形成以密封储存液化气的储罐，且锚条带适当地在横向方向及纵向方向上附接到绝热壁以将膜焊接到绝热壁。
除锚条带之外，第二绝热壁在其上还设置有多个螺柱以用于将第二膜耦接到第二绝热壁。
使用自动焊接机将膜焊接到锚条带。常规地，视绝热系统的结构而定，此自动焊接机在没有单独导轨的情况下沿膜的焊缝移动，或通过安装在配置在膜的褶皱的交叉点处的卡具上的导轨来导引。
然而，当在没有导轨的情况下操作自动膜焊接机时，在生产过程期间难以保证焊接操作的精确度和安全。为了提供导轨，需要用于安装导轨的单独结构。
然而，当通过膜配置用于安装导轨的单独结构时，膜的密封能力可能降低。
由于就第一膜而言没有更多可供使用的结构，情况更加如此。
发明内容
技术问题
已构想本发明的实施例来解决此项技术中的此问题，且本发明的目标为提供一种用于促进膜的焊接的膜组合件以及包含所述膜组合件的膜焊接装置导引系统。
技术方案
根据本发明的一个方面，一种膜焊接装置导引系统包含：锚条带，配置在构成液化气储罐的绝热系统的绝热壁上；螺柱，与所述锚条带一体地形成，所述螺柱的中心位于锚条带的焊接线外部；以及导轨，耦接至所述螺柱，以形成用于焊接待安装在所述绝热壁上的膜的自动膜焊接装置的路径。
所述焊接线可沿锚条带的中心线形成于锚条带上。
多个真空垫安装在导轨上，且多个真空垫吸附在膜上。
所述膜可为安装在第二绝热壁上的第二膜，所述第二绝热壁配置在绝热系统的下层中。
根据本发明的另一个方面，一种膜组合件包含：锚条带，配置在构成液化气储罐的绝热系统的绝热壁上；膜，焊接至所述锚条带，待安装在所述绝热壁上；以及螺柱，与所述锚条带一体地形成，所述螺柱的中心位于所述锚条带的焊接线外部。
所述焊接线可沿锚条带的中心线形成于锚条带上。
所述膜组合件可安装在第二绝热壁上，所述第二绝热壁配置在绝热系统的下层中。
根据本发明的又一方面，一种膜焊接装置导引系统包含：锚条带，在所述绝热壁的横向及纵向方向上以恒定间隔设置在构成液化气储罐的绝热系统的绝热壁上；螺柱，配置在设置于所述横向及纵向方向上的所述锚条带的交叉点处；以及导轨，耦接至所述螺柱以形成用于焊接待安装在所述绝热壁上的膜的自动焊接装置的路径。
多个真空垫安装在导轨上，且多个真空垫吸附在膜上。
所述膜可为安装在第一绝热壁上的第一膜，所述第一绝热壁配置在绝热系统的上层中。
有利效果
在根据本发明的膜组合件和包含膜组合件的膜焊接装置导引系统中，可在不穿透膜的情况下执行膜的焊接，可通过真空垫提高导轨的稳定性，且可在焊接膜期间减少螺柱的干扰，从而实现更稳定和有效的焊接操作。
附图说明
图1为根据本发明的一个实施例的包含用于焊接膜式储罐的膜的膜组合件的膜焊接装置导引系统的示意图。
图2为根据本发明的实施例的膜焊接装置导引系统的局部视图。
图3为根据本发明的另一实施例的包含用于焊接膜式储罐的膜的膜组合件的膜焊接装置导引系统的示意图。
具体实施方式
将参考附图描述本发明的实施例。应注意，在整个说明书和附图中，类似参考标号将表示类似组件。另外，将省略可能不必要地混淆本发明的主题的已知功能和构造的描述。
图1为根据本发明的一个实施例的包含用于焊接膜式储罐的膜的膜组合件的膜焊接装置导引系统的示意图，且图2为根据本发明的实施例的膜焊接装置导引系统的局部视图。
在下文中，将参考图1和图2描述根据本发明的一个实施例的膜焊接装置导引系统。
根据此实施例的膜焊接装置导引系统包含锚条带(11)、螺柱(12)以及导轨(13)。
将锚条带(11)提供到构成液化气储罐的绝垫系统的绝热壁(F2)，以使得将安装在绝热壁(F2)上的膜(M2)焊接到锚条带(10)。
为此目的，锚条带(11)优选地由不锈钢(SUS)形成且在绝热壁的横向及纵向方向上以恒定间隔设置在对应于单元膜的大小的绝热壁(F2)上。
在此实施例中，绝热壁(F2)和膜(M2)可分别为第二绝热壁(F2)和第二膜(M2)，其配置在绝热系统的下层中，即，在储罐的内壁侧处。
第二绝热壁(F2)上设置有多个螺柱，用于将第二绝热壁(M2)耦接至第一绝热壁，所述第一绝热壁将安装在第二膜(M2)上。
根据此实施例的膜焊接装置导引系统的螺柱(12)中的每一个与锚条带(11)一体地形成，位于锚条带(11)的焊接线(W)外部的中心且附接至绝热壁(F2)。
在本文中，焊接线(W)是指所述膜沿其焊接至锚条带(11)且大体上在锚条带(11)的纵向方向上等分锚条带(11)的宽度的一直线。
当螺柱(12)的中心位于锚条带(11)的焊接线(W)外部时，自动膜焊接装置在沿锚条带(11)移动时可不受螺柱(12)干扰以执行焊接。
相较绝热壁，膜具有不同的热收缩引起的变形程度。如果单独形成螺柱和锚条带，那么在膜和绝热壁收缩之后，可单独替换螺柱和锚条带。因此，合乎需要的是，螺柱与锚条带一体地形成，以减小螺柱与锚条带之间的变形程度的差异。
导轨(13)使得沿锚条带(11)的焊接线(W)来导引自动膜焊接装置。导轨(13)耦接至与锚条带(11)一体地形成且其中心位于锚条带(11)的焊接线(W)外部的螺柱(12)，以使得自动膜焊接装置可在导轨上移动以焊接膜。
另外，导轨(13)可包含安装在其上的多个真空垫(未示出)。多个真空垫吸附在膜(M2)上以双重固定导轨，由此使得导轨更稳定且牢固地保持在适当的位置。
根据本发明的另一实施例的膜焊接装置导引系统包含锚条带(21)、螺柱(22)以及导轨(23)。
将锚条带(21)提供到构成液化气储罐的绝垫系统的绝热壁(F1)，以使得可将安装在绝热壁(F1)上的膜(M1)焊接到锚条带(21)。
为此目的，锚条带(21)优选地由不锈钢(SUS)形成且在绝热壁的横向及纵向方向上以恒定间隔设置在对应于单元膜的大小的绝热壁(F1)上。
在此实施例中，绝热壁(F1)和膜(M1)可分别为第一绝热壁(F1)和第一膜(M1)，其配置在绝热系统的上层中，即，在储罐的内部空间侧处。
第一绝热壁(F1)上未设置用于将第一绝热壁(F1)耦接至第二绝热壁(F2)的螺柱。
因此，不存在可用于将导轨放置在第一绝热壁上的特殊结构。
在此实施例中，螺柱(22)配置在设置于横向及纵向方向上的锚条带(21)的交叉点处，以使得导轨(23)可耦接至螺柱(22)。
通过所述将螺柱(22)放置于锚条带(21)的交叉点处，可仅通过适当地对膜斜切来将导轨安装在螺柱(22)上，而不需要将用于安装导轨的单独结构(例如卡具)安装在膜(M1)上或通过膜(M1)耦接单独结构。
另外，导轨(23)可包含安装在其上的多个真空垫。多个真空垫吸附在膜(M1)上以双重固定导轨，由此使得导轨更稳定且牢固地保持在适当的位置。
如上文所描述，根据本发明的膜焊接装置导引系统和膜组合件可使得易于执行将膜自动焊接到绝热壁，同时稳定且牢固地导引自动焊接装置。
尽管已在本文中描述一些实施例，但本领域的技术人员应理解，这些实施例仅借助于说明给出，且本发明不限于此。另外，应理解，本领域的技术人员可在不脱离本发明的精神和范围的情况下进行各种修改、变化和更改。
附图标号说明
11、21：锚条带
12、22：螺柱
13、23：导轨
M1、M2：膜
F1、F2：绝热壁
W：焊接线

Claims (10)

1.一种膜焊接装置导引系统，包括：
锚条带，配置在构成液化气储罐的绝热系统的绝热壁上；
螺柱，与所述锚条带一体地形成，所述螺柱的中心位于所述锚条带的焊接线外部；以及
导轨，耦接至所述螺柱以形成用于焊接待安装在所述绝热壁上的膜的自动焊接装置的路径。
2.根据权利要求1所述的膜焊接装置导引系统，其中所述焊接线沿所述锚条带的中心线形成于所述锚条带上。
3.根据权利要求2所述的膜焊接装置导引系统，其中所述导轨包括安装在其上的多个真空垫，所述多个真空垫吸附在所述膜上。
4.根据权利要求2所述的膜焊接装置导引系统，其中所述膜为安装在第二绝热壁上的第二膜，所述第二绝热壁配置在所述绝热系统的下层中。
5.一种膜组合件，包括：
锚条带，配置在构成液化气储罐的绝热系统的绝热壁上；
膜，焊接至所述锚条带，待安装在所述绝热壁上；以及
螺柱，与所述锚条带一体地形成，所述螺柱的中心位于所述锚条带的焊接线外部。
6.根据权利要求5所述的膜组合件，其中所述焊接线沿所述锚条带的中心线形成于所述锚条带上。
7.根据权利要求6所述的膜组合件，其中所述膜组合件安装在第二绝热壁上，所述第二绝热壁配置在所述绝热系统的下层中。
8.一种膜焊接装置导引系统，包括：
锚条带，在所述绝热壁的横向及纵向方向上以恒定间隔设置在构成液化气储罐的绝热系统的绝热壁上；
螺柱，配置在设置于所述横向及纵向方向上的所述锚条带的交叉点处；以及
导轨，耦接至所述螺柱以形成用于焊接待安装在所述绝热壁上的膜的自动焊接装置的路径。
9.根据权利要求8所述的膜焊接装置导引系统，其中所述导轨包括安装在其上的多个真空垫，所述多个真空垫吸附在所述膜上。
10.根据权利要求8所述的膜焊接装置导引系统，其中所述膜为安装在第一绝热壁上的第一膜，所述第一绝热壁配置在所述绝热系统的上层中。
CN201680059708.1A 2015-10-12 2016-03-08 焊接膜式储罐膜的膜组合件及含其的膜焊接装置导引系统 Withdrawn CN108137131A (zh)

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