-
公开(公告)号：US12128440B2
公开(公告)日：2024-10-29
申请号：US17610567
申请日：2020-07-27
CPC分类号： B05C7/08 , F16L13/0263 , B25J11/0075 , H05B3/40 , H05B2203/013
摘要： A pipeline construction usable for internally insulating a welded joint between pipes with an internal protective coating. A device for internally insulating a welded pipeline joint includes a sealing assembly including a cylindrical housing and a coaxially-fastened cylindrical working member that radially expands upon generation of excess pressure in a cavity thereof. Inside the housing are a sealing compound feed assembly, a dosing device formed by a piston assembly for sealing compound components, and a pneumatic control assembly. In the dosing device, working cavities for each component are connected to the feed assembly. The elastic working member has a conduit connected to the feed assembly for feeding sealing compound into an annular gap in a welded joint region, and a conduit for pumping air out of the gap. The pneumatic control assembly controls dosing device and feed assembly functioning and generates excess air pressure in the working member cavity.
-
公开(公告)号：US20220226859A1
公开(公告)日：2022-07-21
申请号：US17610567
申请日：2020-07-27
摘要： A pipeline construction usable for internally insulating a welded joint between pipes with an internal protective coating. A device for internally insulating a welded pipeline joint includes a sealing assembly including a cylindrical housing and a coaxially-fastened cylindrical working member that radially expands upon generation of excess pressure in a cavity thereof. Inside the housing are a sealing compound feed assembly, a dosing device formed by a piston assembly for sealing compound components, and a pneumatic control assembly. In the dosing device, working cavities for each component are connected to the feed assembly. The elastic working member has a conduit connected to the feed assembly for feeding sealing compound into an annular gap in a welded joint region, and a conduit for pumping air out of the gap. The pneumatic control assembly controls dosing device and feed assembly functioning and generates excess air pressure in the working member cavity.
-
公开(公告)号：US11644128B2
公开(公告)日：2023-05-09
申请号：US16649435
申请日：2018-06-05
IPC分类号： F16L55/12 , F16L13/02 , F16L58/10 , F16L55/134 , B23K101/10 , B23K9/028 , B29C65/00 , F16L58/18
CPC分类号： F16L13/0263 , F16L55/134 , F16L58/1009 , B23K9/0282 , B23K2101/10 , B29C66/72321 , F16L58/181
摘要： A device internally insulating a welded pipeline joint between pipes having an internal protective coating, in a first variant, includes a power actuator having a cylindrical elastic working member for radial expansion when excess pressure occurs inside its cavity. A cylindrical casing of elastic anti-adhesive material arranged coaxially on the member exterior can have channels for exhausting air and supplying a compound. In a second variant, the device sleevelessly insulates an annular space. A casing made of an anti-adhesive material is centrally reinforced by an elastic cord. Using a cylindrical elastic anti-adhesive casing coaxially arranged on the exterior of a power actuator elastic working member forms an annular space in the weld zone either using a protective sleeve, or by a reinforced casing portion. A vacuum in the space is filled by a compound. The elastic anti-adhesive material allows easy removal of the casing from the hardened compound surface.
-
公开(公告)号：US20200240555A1
公开(公告)日：2020-07-30
申请号：US16649435
申请日：2018-06-05
摘要： A device internally insulating a welded pipeline joint between pipes having an internal protective coating, in a first variant, includes a power actuator having a cylindrical elastic working member for radial expansion when excess pressure occurs inside its cavity. A cylindrical casing of elastic anti-adhesive material arranged coaxially on the member exterior can have channels for exhausting air and supplying a compound. In a second variant, the device sleevelessly insulates an annular space. A casing made of an anti-adhesive material is centrally reinforced by an elastic cord. Using a cylindrical elastic anti-adhesive casing coaxially arranged on the exterior of a power actuator elastic working member forms an annular space in the weld zone either using a protective sleeve, or by a reinforced casing portion. A vacuum in the space is filled by a compound. The elastic anti-adhesive material allows easy removal of the casing from the hardened compound surface.
-
-
-
搜索结果
4 条记录 (耗时 0.01 秒)
