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公开(公告)号：US20160297125A1
公开(公告)日：2016-10-13
申请号：US15100629
申请日：2014-12-02
申请人： SUBSEA 7 LIMITED
IPC分类号： B29C45/14 , B29C45/62 , B29C45/23 , F16L59/20 , B29C45/72 , B29C45/53 , F16L13/02 , F16L58/18 , B29C45/76 , B29C45/18
CPC分类号： B29C45/14622 , B29C31/041 , B29C31/063 , B29C45/04 , B29C45/14336 , B29C45/14598 , B29C45/18 , B29C45/23 , B29C45/53 , B29C45/62 , B29C45/7207 , B29C45/76 , B29C2045/465 , B29C2945/76568 , B29C2945/76688 , B29C2945/76698 , B29C2945/76829 , B29C2945/76859 , B29K2023/12 , B29K2025/06 , B29K2105/0067 , B29K2105/20 , B29K2705/00 , B29K2705/12 , B29K2995/0015 , B29K2995/0058 , B29L2023/22 , B29L2023/225 , F16L13/0272 , F16L58/181 , F16L59/20
摘要： An injection moulding apparatus has a mould tool that is positioned around a field joint of a pipeline to define a mould cavity. Two or more pumping chambers communicate with the mould tool. Each chamber is expansible to draw in molten polymer and contractible to drive the polymer into the mould cavity. Expansion of one chamber is synchronised with contraction of another chamber. The operation of supply and injection valves associated with the chambers is also synchronised, both with each other and with expansion and contraction of the chambers. In the embodiment described, two pumping chambers are defined within a common pressurising cylinder, in which the chambers are separated by a piston. The piston is movable within the cylinder to determine and to synchronise expansion and contraction of the chambers.
摘要翻译： 注射成型设备具有模具，其围绕管道的现场接头定位以限定模腔。 两个或多个泵送室与模具工具连通。 每个室可膨胀以吸收熔融聚合物并收缩以将聚合物驱动到模腔中。 一个室的膨胀与另一个室的收缩同步。 与腔室相关联的供应和注射阀的操作也彼此同步并且随着室的膨胀和收缩而同步。 在所描述的实施例中，两个泵送室限定在公共加压缸内，其中室由活塞分开。 活塞可在气缸内移动以确定和同步腔室的膨胀和收缩。
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公开(公告)号：US20170045178A1
公开(公告)日：2017-02-16
申请号：US15039398
申请日：2014-11-28
申请人： Subsea 7 Limited
CPC分类号： F16L58/1054 , B29C63/0069 , B29C63/22 , B29C66/12821 , B29C66/1286 , B29C66/532 , B29C66/71 , B29C66/72321 , B29C66/7392 , B29C66/8264 , B29K2701/12 , B29K2905/12 , B29L2023/225 , F16L13/0272 , F16L58/1081 , F16L59/20 , B29K2023/12
摘要： A method of coating a field joint of a pipeline places at least one body having a thermoplastics material around the field joint. The body is heated in a mould cavity around the field joint to effect thermal expansion of the thermoplastics material. Thermal expansion of the body in the mould cavity is constrained to apply elevated pressure between the body and pipe sections joined at the field joint. The elevated pressure improves bonding and fusing between the body, which forms a field joint coating, and the parent coatings and the exposed pipe sections of the pipe joints. The body need not be fully molten, which reduces the mould residence time including in-mould heating and cooling phases.
摘要翻译： 涂覆管道的场接头的方法将至少一个具有热塑性材料的主体围绕场接头放置。 身体在场接头周围的模腔中被加热以实现热塑性材料的热膨胀。 机体在模腔中的热膨胀被限制为在主体和在接头处连接的管段之间施加高压。 升高的压力改善了形成场接头涂层的主体与管接头的母漆和暴露管段之间的粘合和熔合。 机体不需要完全熔化，这减少了模具停留时间，包括模内加热和冷却阶段。
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公开(公告)号：US20170350551A1
公开(公告)日：2017-12-07
申请号：US15538186
申请日：2015-12-22
申请人： Subsea 7 Limited
CPC分类号： F16L59/20 , B29C45/00 , B29C45/14614 , B29C45/14639 , B29C45/14819 , B29C65/1412 , B29C65/1432 , B29C65/4815 , B29C65/5042 , B29C65/542 , B29K2075/00 , B29L2023/225 , F16L1/00 , F16L59/024
摘要： A method protects a field joint of a pipeline, where chamfered edges of thermally-insulating parent coatings on conjoined pipe lengths are in mutual opposition about a longitudinally-extending gap. The method includes manufacturing an hourglass-shaped inner layer around the pipe lengths, which layer may be moulded. The inner layer extends longitudinally along the gap between the chamfered edges and at least partially overlies the chamfered edges. A thermally-insulating solid insert is assembled from two or more parts to lie in the gap surrounding the inner layer, and pressure is applied radially inwardly from the insert to the inner layer. An outer layer of molten material is manufactured around the insert to form a watertight barrier and to form one or more melted interfaces with the inner layer. Corresponding field joint arrangements are also disclosed.
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公开(公告)号：US10479008B2
公开(公告)日：2019-11-19
申请号：US15100629
申请日：2014-12-02
申请人： Subsea 7 Limited
IPC分类号： B29C45/14 , B29C45/62 , B29C45/23 , F16L59/20 , B29C45/72 , B29C45/53 , F16L13/02 , F16L58/18 , B29C45/76 , B29C45/18 , B29C31/04 , B29C31/06 , B29C45/04 , B29K705/00 , B29K23/00 , B29C45/46 , B29K25/00 , B29K105/00 , B29K105/20 , B29K705/12 , B29L23/00
摘要： An injection molding apparatus has a mold tool that is positioned around a field joint of a pipeline to define a mold cavity. Two or more pumping chambers communicate with the mold tool. Each chamber is expansible to draw in molten polymer and contractible to drive the polymer into the mold cavity. Expansion of one chamber is synchronized with contraction of another chamber. The operation of supply and injection valves associated with the chambers is also synchronized, both with each other and with expansion and contraction of the chambers. In the embodiment described, two pumping chambers are defined within a common pressurizing cylinder, in which the chambers are separated by a piston. The piston is movable within the cylinder to determine and to synchronize expansion and contraction of the chambers.
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公开(公告)号：US10295111B2
公开(公告)日：2019-05-21
申请号：US15538186
申请日：2015-12-22
申请人： Subsea 7 Limited
IPC分类号： F16L3/10 , F16L9/04 , F16L9/12 , B21D39/00 , B29C45/00 , B29C45/14 , B29C65/14 , B29K75/00 , B29L23/00 , F16L13/00 , F16L59/02 , F16L59/20 , F16L9/147 , B29C65/50 , F16L1/00 , B29C65/48 , B29C65/54
摘要： A method protects a field joint of a pipeline, where chamfered edges of thermally-insulating parent coatings on conjoined pipe lengths are in mutual opposition about a longitudinally-extending gap. The method includes manufacturing an hourglass-shaped inner layer around the pipe lengths, which layer may be moulded. The inner layer extends longitudinally along the gap between the chamfered edges and at least partially overlies the chamfered edges. A thermally-insulating solid insert is assembled from two or more parts to lie in the gap surrounding the inner layer, and pressure is applied radially inwardly from the insert to the inner layer. An outer layer of molten material is manufactured around the insert to form a watertight barrier and to form one or more melted interfaces with the inner layer. Corresponding field joint arrangements are also disclosed.
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公开(公告)号：US10215324B2
公开(公告)日：2019-02-26
申请号：US15039398
申请日：2014-11-28
申请人： Subsea 7 Limited
IPC分类号： F16L58/10 , F16L59/20 , F16L13/02 , B29C63/00 , B29C63/22 , B29C65/00 , B29K701/12 , B29L23/00
摘要： A method of coating a field joint of a pipeline places at least one body having a thermoplastics material around the field joint. The body is heated in a mold cavity around the field joint to effect thermal expansion of the thermoplastics material. Thermal expansion of the body in the mold cavity is constrained to apply elevated pressure between the body and pipe sections joined at the field joint. The elevated pressure improves bonding and fusing between the body, which forms a field joint coating, and the parent coatings and the exposed pipe sections of the pipe joints. The body need not be fully molten, which reduces the mold residence time including in-mold heating and cooling phases.
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公开(公告)号：US20160279847A1
公开(公告)日：2016-09-29
申请号：US15033083
申请日：2014-10-30
申请人： SUBSEA 7 LIMITED
IPC分类号： B29C45/17 , B29C45/26 , F16L59/20 , B29C45/43 , F16L58/18 , F16L1/20 , B29C45/73 , B29C45/14
CPC分类号： B29C45/174 , B29C45/14598 , B29C45/14622 , B29C45/1734 , B29C45/261 , B29C45/43 , B29C45/561 , B29C45/7207 , B29C45/7331 , B29C2045/14893 , B29C2045/1707 , B29K2023/12 , B29K2025/06 , B29K2105/0058 , B29K2105/20 , B29K2705/12 , B29K2995/0015 , B29L2009/003 , B29L2023/22 , B29L2023/225 , F16L1/206 , F16L58/181 , F16L59/20
摘要： A thermoplastics injection moulding process coats a field joint of a pipeline by positioning a mould tool around the field joint to define a mould cavity. Thermoplastics material injected into the mould cavity forms a field joint coating that will set in the mould cavity. As the thermoplastics material shrinks in the mould cavity while the field joint coating sets, compacting pressure is applied radially inwardly within the mould cavity against a radially outer side of the field joint coating. A compacting fluid introduced into the mould cavity between the mould tool and the field joint coating may be used to apply pressure against the field joint coating. This accelerates and controls cooling of the field joint coating while maximising quality.
摘要翻译： 热塑性塑料注射成型工艺通过将模具工具围绕现场接头定位以形成模腔，来涂覆管道的场接头。 注射到模腔中的热塑性材料形成将在模具腔中放置的场接头涂层。 随着热塑性塑料材料在模腔中收缩，而现场接头涂层集合时，压模压力在模腔内径向向内施加，抵抗场接头涂层的径向外侧。 可以使用在模具工具和场接头涂层之间引入模腔中的压实流体施加抵抗场接头涂层的压力。 这可以加速和控制现场接头涂层的冷却，同时最大限度地提高质量。
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公开(公告)号：US11168827B2
公开(公告)日：2021-11-09
申请号：US16285134
申请日：2019-02-25
申请人： Subsea 7 Limited
IPC分类号： F16L58/10 , F16L59/20 , F16L13/02 , B29C63/00 , B29C63/22 , B29C65/00 , B29K701/12 , B29L23/00
摘要： A system for coating a field joint of a pipeline places at least one body having a thermoplastics material around the field joint. The body is heated in a mould cavity around the field joint to effect thermal expansion of the thermoplastics material. Thermal expansion of the body in the mould cavity is constrained to apply elevated pressure between the body and pipe sections joined at the field joint. The elevated pressure improves bonding and fusing between the body, which forms a field joint coating, and the parent coatings and the exposed pipe sections of the pipe joints. The body need not be fully molten, which reduces the mould residence time including in-mould heating and cooling phases.
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公开(公告)号：US20190271432A1
公开(公告)日：2019-09-05
申请号：US16414719
申请日：2019-05-16
申请人： Subsea 7 Limited
IPC分类号： F16L59/20 , B29C45/00 , B29C65/14 , B21D39/00 , F16L59/02 , F16L9/04 , F16L3/10 , F16L9/147 , B29C45/14 , B29C65/50 , F16L13/00
摘要： A method protects a field joint of a pipeline, where chamfered edges of thermally-insulating parent coatings on conjoined pipe lengths are in mutual opposition about a longitudinally-extending gap. The method includes manufacturing an hourglass-shaped inner layer around the pipe lengths, which layer may be moulded. The inner layer extends longitudinally along the gap between the chamfered edges and at least partially overlies the chamfered edges. A thermally-insulating solid insert is assembled from two or more parts to lie in the gap surrounding the inner layer, and pressure is applied radially inwardly from the insert to the inner layer. An outer layer of molten material is manufactured around the insert to form a watertight barrier and to form one or more melted interfaces with the inner layer. Corresponding field joint arrangements are also disclosed.
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公开(公告)号：US10357910B2
公开(公告)日：2019-07-23
申请号：US15033083
申请日：2014-10-30
申请人： Subsea 7 Limited
IPC分类号： B29C45/17 , B29C45/26 , F16L58/18 , F16L59/20 , F16L1/20 , B29C45/14 , B29C45/43 , B29C45/73 , B29L23/00 , B29C45/72 , B29L9/00 , B29C45/56 , B29K23/00 , B29K25/00 , B29K105/00 , B29K105/20 , B29K705/12
摘要： A thermoplastics injection molding process coats a field joint of a pipeline by positioning a mold tool around the field joint to define a mold cavity. Thermoplastics material injected into the mold cavity forms a field joint coating that will set in the mold cavity. As the thermoplastics material shrinks in the mold cavity while the field joint coating sets, compacting pressure is applied radially inwardly within the mold cavity against a radially outer side of the field joint coating. A compacting fluid introduced into the mold cavity between the mold tool and the field joint coating may be used to apply pressure against the field joint coating. This accelerates and controls cooling of the field joint coating while maximizing quality.
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