公开(公告)号：US5006302A

公开(公告)日：1991-04-09

申请号：US511118

申请日：1990-04-19

申请人： Mark H. Trundle ,  William C. Jones

发明人： Mark H. Trundle ,  William C. Jones

IPC分类号： F22B37/00 ,  F22B37/22 ,  G21C13/067

CPC分类号： F22B37/003 ,  F22B37/222 ,  G21C13/067 ,  Y02E30/40

摘要： The present invention relates to a system, teaches a technique, and provides apparatus eminently useful for the installation/removal, from a remote and protected location, of nozzle dams onto and from nozzle holddown rings within the channel heads of certain steam generators, including the types typically used in conjunction with the operation of pressurized hot-water nuclear power plants. The technique or method of the instant invention involves methodology for remotely introducing usually with the aid of tackle insertion tool means, through an open channel head manway requisite tubesheet tackle means, or tackle means, as well as strapping means and the securing of same therein; inserting through said open manway, usually with the aid of lifting means, folded nozzle dam means; opening said dam means and properly orientating same relative to said nozzle holddown ring; inserting, orientating, and securing the center portion of said nozzle dam means, torquing bolting means to predetermined limits; and removing from said channel head all said attendant tubesheet tackle means. The effecting of the instant technique requires only a minimal amount of relatively inexpensive, but specially designed equipment and is simply, quickly, and easily placed into practice by, for example, manipulation of same by one or more human operators who are physically located outside said channel head(s) and adjacent said open manway thereby substantially reducing the effective radiation dose heretofore normally associated with such nozzle dam installation and removal.

摘要翻译： 本发明涉及一种技术，并且提供了一种技术，并且提供了用于从远程和受保护的位置安装/移除在特定蒸汽发生器的通道头内的喷嘴压紧环上的喷嘴坝的装置，包括 通常与加压热水核电站的运行一起使用的类型。 本发明的技术或方法涉及通常借助于滑车插入工具装置，通过开放的通道头道路所需的管板滑车装置或滑车装置以及捆扎装置和其中的固定来远程引入的方法; 通过开放式通道插入，通常借助起重装置，折叠式水坝手段; 打开所述水坝装置并相对于所述喷嘴压紧环适当地定向; 插入，定向和固定所述喷嘴坝装置的中心部分，将螺栓连接装置扭转到预定限度; 并且从所述通道头移除所有所述辅助管板卸载装置。 即时技术的影响仅需要最少量的相对便宜且特别设计的设备，并且简单，快速且容易地被放置在实践中，例如通过一个或多个物理上位于所述 通道头部和相邻的所述开放式通道，从而基本上减少了通常与这种喷嘴坝安装和移除相关联的有效辐射剂量。

公开(公告)号：US4989818A

公开(公告)日：1991-02-05

申请号：US511167

申请日：1990-04-19

申请人： Mark H. Trundle ,  William C. Jones

发明人： Mark H. Trundle ,  William C. Jones

IPC分类号： F22B37/00 ,  F22B37/22 ,  G21C13/067

CPC分类号： F22B37/222 ,  F22B37/003 ,  G21C13/067 ,  Y02E30/40 ,  Y10T403/7064

摘要： The present invention relates to a system, teaches a technique, and provides apparatus eminently useful for the installation/removal, from a remote and protected location, of nozzle dams onto and from nozzle holddown rings within the channel heads of certain steam generators, including the types typically used in conjunction with the operation of pressurized hot-water nuclear power plants. The technique or method of the instant invention involves methodology for remotely introducing usually with the aid of tackle insertion tool means, through an open channel head manway requisite tubesheet tackle means, or tackle means, as well as strapping means and the securing of same therein; inserting through said open manway, usually with the aid of lifting means, folded nozzle dam means; opening said dam means and properly orientating same relative to said nozzle holddown ring; inserting, orientating, and securing the center portion or said nozzle dam means, torquing bolting means to predetermined limits; and removing from said channel head all said attendant tubesheet tackle means. The effecting of the instant technique requires only a minimal amount of relatively inexpensive, but specially designed equipment and is simply, quickly, and easily placed into practice by, for example, manipulation of same by one or more human operators who are physically located outside said channel head(s) and adjacent said open manway thereby substantially reducing the effective radiation dose heretofore normally associated with such nozzle dam installation and removal.

摘要翻译： 本发明涉及一种技术，并且提供了一种技术，并且提供了用于从远程和受保护的位置安装/移除在特定蒸汽发生器的通道头内的喷嘴压紧环上的喷嘴坝的装置，包括 通常与加压热水核电站的运行一起使用的类型。 本发明的技术或方法涉及通常借助于滑车插入工具装置，通过开放的通道头道路所需的管板滑车装置或滑车装置以及捆扎装置和其中的固定来远程引入的方法; 通过开放式通道插入，通常借助起重装置，折叠式水坝手段; 打开所述水坝装置并相对于所述喷嘴压紧环适当地定向; 插入，定向和固定中心部分或所述喷嘴坝装置，将螺栓连接装置扭转到预定限度; 并且从所述通道头移除所有所述辅助管板卸载装置。 即时技术的影响仅需要最少量的相对便宜且特别设计的设备，并且简单，快速且容易地被放置在实践中，例如通过一个或多个物理上位于所述 通道头部和相邻的所述开放式通道，从而基本上减少了通常与这种喷嘴坝安装和移除相关联的有效辐射剂量。

公开(公告)号：US4959192A

公开(公告)日：1990-09-25

申请号：US365641

申请日：1989-06-13

申请人： Mark H. Trundle ,  William C. Jones

发明人： Mark H. Trundle ,  William C. Jones

IPC分类号： F22B37/00 ,  F22B37/22 ,  G21C13/067

CPC分类号： G21C13/067 ,  F22B37/003 ,  F22B37/222 ,  Y02E30/40 ,  Y10T29/53113

摘要： The present invention relates to a system, teaches a technique, and provides apparatus eminently useful for the installation/removal, from a remote and protected location, of nozzle dams onto and from nozzle holddown rings within the channel heads of certain steam generators, including the types typically used in conjunction with the operation of pressurized hot-water nuclear power plants. The technique or method of the instant invention involves methodology for remotely introducing usually with the aid of tackle insertion tool means, through an open channel head manway requisite tubesheet tackle means, or tackle means, as well as strapping means and the securing of same therein; inserting through said open manway, usually with the aid of lifting means, folded nozzle dam means; opening said dam means and properly orientating same relative to said nozzle holddown ring; inserting, orientating, and securing the center portion of said nozzle dam means, torquing bolting means to predetermined limits; and removing from said channel head all said attendant tubesheet tackle means. The effecting of the instant technique requires only a minimal amount of relatively inexpensive, but specially designed equipment and is simply, quickly, and easily placed into practice by, for example, manipulation of same by one or more human operators who are physically located outside said channel head(s) and adjacent said open manway thereby substantially reducing the effective radiation dose heretofore normally associated with such nozzle dam installation and removal.

摘要翻译： 本发明涉及一种技术，并且提供了一种技术，并且提供了用于从远程和受保护的位置安装/移除在特定蒸汽发生器的通道头内的喷嘴压紧环上的喷嘴坝的装置，包括 通常与加压热水核电站的运行一起使用的类型。 本发明的技术或方法涉及通常借助于滑车插入工具装置，通过开放的通道头道路所需的管板滑车装置或滑车装置以及捆扎装置和其中的固定来远程引入的方法; 通过开放式通道插入，通常借助起重装置，折叠式水坝手段; 打开所述水坝装置并相对于所述喷嘴压紧环适当地定向; 插入，定向和固定所述喷嘴坝装置的中心部分，将螺栓连接装置扭转到预定限度; 并且从所述通道头移除所有所述辅助管板卸载装置。 即时技术的影响仅需要最少量的相对便宜且特别设计的设备，并且简单，快速且容易地被放置在实践中，例如通过一个或多个物理上位于所述 通道头部和相邻的所述开放式通道，从而基本上减少了通常与这种喷嘴坝安装和移除相关联的有效辐射剂量。

公开(公告)号：US5042861A

公开(公告)日：1991-08-27

申请号：US511120

申请日：1990-04-19

申请人： Mark H. Trundle ,  William C. Jones

发明人： Mark H. Trundle ,  William C. Jones

IPC分类号： F22B37/00 ,  F22B37/22 ,  G21C13/067

CPC分类号： G21C13/067 ,  F22B37/003 ,  F22B37/222 ,  Y02E30/40

摘要： The present invention relates to a system, teaches a technique, and provides apparatus eminently useful for the installation/removal, from a remote and protected location, of nozzle dams onto and from nozzle holddown rings within the channel heads of certain steam generators, including the types typically used in conjunction with the operation of pressurized hot-water nuclear power plants. The technique or method of the instant invention involves methodology for remotely introducing usually with the aid of tackle insertion tool means, through an open channel head manway requisite tubesheet tackle means, or tackle means, as well as strapping means and the securing of same therein; inserting through said open manway, usually with the aid of lifting means, folded nozzle dam means; opening said dam means and properly orientating same relative to said nozzle holddown ring; inserting, orientating, and securing the center portion of said nozzle dam means, torquing bolting means to predetermined limits; and removing from said channel head all said attendant tubesheet means. The effecting of the instant technique requires only a minimal amount of relatively inexpensive, but specifically designed equipment and is simply, quickly, and easily placed into practice by, for example, manipulation of same by one or more human operators who are physically located outside said channel head(s) and adjacent said open manway thereby substantially reducing the effective radiation dose heretofore normally associated with such nozzle dam installation and removal.

摘要翻译： 本发明涉及一种技术，并且提供了一种技术，并且提供了用于从远程和受保护的位置安装/移除在特定蒸汽发生器的通道头内的喷嘴压紧环上的喷嘴坝的装置，包括 通常与加压热水核电站的运行一起使用的类型。 本发明的技术或方法涉及通常借助于滑车插入工具装置，通过开放的通道头道路所需的管板滑车装置或滑车装置以及捆扎装置和其中的固定来远程引入的方法; 通过开放式通道插入，通常借助起重装置，折叠式水坝手段; 打开所述水坝装置并相对于所述喷嘴压紧环适当地定向; 插入，定向和固定所述喷嘴坝装置的中心部分，将螺栓连接装置扭转到预定限度; 并且从所述通道头部移除所有所述附带的管板装置。 即时技术的影响仅需要最少量的相对便宜且特别设计的设备，并且简单，快速并且容易地被放置在实践中，例如通过一个或多个物理位于所述 通道头部和相邻的所述开放式通道，从而基本上减少了通常与这种喷嘴坝安装和移除相关联的有效辐射剂量。