A method for inspecting a component made using an additive manufacturing process, the component having an internal conduit, is disclosed. In various embodiments, the method includes the steps of: attaching a fluid-blocking header to the component, the fluid-blocking header having an internal conformal surface configured to mate with an external conformal surface of the component; introducing a plugging media into the internal conduit; activating the fluid-blocking header to freeze the plugging media in a vicinity of the fluid-blocking header; pressurizing the internal conduit of the component; and analyzing a fluid flow characteristic at an outlet of the component to assess an occurrence of a blockage within the internal conduit.

A method for inspecting a component made using an additive manufacturing process, the component having an internal conduit, is disclosed. In various embodiments, the method includes the steps of: attaching a fluid-blocking header to the component, the fluid-blocking header having an internal conformal surface configured to mate with an external conformal surface of the component; introducing a plugging media into the internal conduit; activating the fluid-blocking header to freeze the plugging media in a vicinity of the fluid-blocking header; pressurizing the internal conduit of the component; and analyzing a fluid flow characteristic at an outlet of the component to assess an occurrence of a blockage within the internal conduit.

An arrangement is for forming a freeze plug in a tubing. The arrangement includes a first and a second displacement element adapted to be displaced within the tubing with a medium between them that is adapted to form the freeze plug. The first and the second displacement elements include, at least at a respective end portion facing the medium between them, a sensor arrangement for measuring at least one of a pressure and a temperature.

An arrangement is for forming a freeze plug in a tubing. The arrangement includes a first and a second displacement element adapted to be displaced within the tubing with a medium between them that is adapted to form the freeze plug. The first and the second displacement elements include, at least at a respective end portion facing the medium between them, a sensor arrangement for measuring at least one of a pressure and a temperature.

A system for providing upkeep and maintenance to piping including in improved pipe freezing apparatus. In a specific embodiment, the system is quite useful to replace worn valves that may require digging underground to expose enough of the pipe system. Novel tools for removing the valve are additionally provided by the present invention. The preferred embodiment further improves upon job safety when using CO.sub.2 (dry ice) evaporating and venting the chamber as a gas displacing oxygen. The novel design of the pipe freezing apparatus described herein can be installed by hand without tools. Said design further obviates a need for a specifically designed vent for the pipe freezing apparatus.

A system for providing upkeep and maintenance to piping including in improved pipe freezing apparatus. In a specific embodiment, the system is quite useful to replace worn valves that may require digging underground to expose enough of the pipe system. Novel tools for removing the valve are additionally provided by the present invention. The preferred embodiment further improves upon job safety when using CO.sub.2 (dry ice) evaporating and venting the chamber as a gas displacing oxygen. The novel design of the pipe freezing apparatus described herein can be installed by hand without tools. Said design further obviates a need for a specifically designed vent for the pipe freezing apparatus.

A rapid pipe freezing method including a process of wrapping the pipe with a cooling coil along the outer circumference surface of the pipe rapidly is disclosed. The method includes bending the cooling coil not to be blocked by itself so that a refrigerant flow through the inside thereof and arranging the cooling coil to form a freezing area, fixing the cooling coil to fix the cooling coil on one surface of the cover sheet such that at least one part of the freezing area may be overlapped with the cover sheet, installing the cover sheet wrapping the outer circumference surface of the pipe with the cover sheet such that the cooling coil of the freezing area may face the outer circumference surface of the pipe, and flowing a refrigerant by connecting a refrigerant cooling device to the one end of the cooling coil and the other end of the same and flowing a refrigerant through the inside of the cooling coil to freeze the inside of the pipe where the freezing area is overlapped.

A rapid pipe freezing method including a process of wrapping the pipe with a cooling coil along the outer circumference surface of the pipe rapidly is disclosed. The method includes bending the cooling coil not to be blocked by itself so that a refrigerant flow through the inside thereof and arranging the cooling coil to form a freezing area, fixing the cooling coil to fix the cooling coil on one surface of the cover sheet such that at least one part of the freezing area may be overlapped with the cover sheet, installing the cover sheet wrapping the outer circumference surface of the pipe with the cover sheet such that the cooling coil of the freezing area may face the outer circumference surface of the pipe, and flowing a refrigerant by connecting a refrigerant cooling device to the one end of the cooling coil and the other end of the same and flowing a refrigerant through the inside of the cooling coil to freeze the inside of the pipe where the freezing area is overlapped.

Provided are cryogenic injection compositions, methods and systems to introduce a cryogenic injection composition into a fluid within a conduit such that at least a portion of the temperature of the fluid is reduced to a temperature below which at least a portion of the fluid becomes a solid thereby reversibly plugging the conduit. Also provided are methods and systems for cooling or freezing a conduit and a fluid therein using a pressurized fluid cryogen as a thermal transfer fluid for controlled removal of thermal energy from a thermal conducting metal conduit and a fluid contained therein.

Provided are cryogenic injection compositions, methods and systems to introduce a cryogenic injection composition into a fluid within a conduit such that at least a portion of the temperature of the fluid is reduced to a temperature below which at least a portion of the fluid becomes a solid thereby reversibly plugging the conduit. Also provided are methods and systems for cooling or freezing a conduit and a fluid therein using a pressurized fluid cryogen as a thermal transfer fluid for controlled removal of thermal energy from a thermal conducting metal conduit and a fluid contained therein.