A hydrogen fuel coupling system may include a hydrogen fuel tank and a hydrogen fuel supply connector. The tank has a first connector, and a second connector disposed around the first connector. The second connector has a boil-off inlet port for receiving gaseous hydrogen from the tank. The hydrogen fuel supply connector may include a hydrogen fuel transfer line, a third connector for operably sealably connecting the transfer line to a first connector of the tank for supplying liquid hydrogen, and a shroud extending around the third connector and the transfer line defining a gap therebetween. A fourth connector operably sealably connects a first end of the shroud to a second connector of the tank. A second end of the shroud is operably sealably engageable with the transfer line. A boil-off vent is connected to the shroud for venting gas from the gap.

A connecting flange for mutually connecting two tubular components including a flange body annularly surrounding a flange longitudinal axis with a first flange contact region and a second flange contact region, which is arranged in the direction of the flange longitudinal axis at a distance from the first flange contact region. At the first flange contact region, a first inner circumferential contact surface for contact of the flange body against an outer circumferential surface of one of the components to be connected to each other via the connecting flange is provided, and, at the second flange contact region, a second inner circumferential contact surface for contact of the flange body against the outer circumferential surface is provided. An insulating recess extending radially outward with respect to the first inner circumferential contact surface or/and the second inner circumferential contact surface and open radially inward is provided in the flange body.

The thermal insulation system of the present invention is for non-vacuum applications and is specifically tailored to the ambient pressure environment with any level of humidity or moisture. The thermal insulation system includes a multilayered composite including i) at least one thermal insulation layer and at least one compressible barrier layer provided as alternating, successive layers, and ii) at least one reflective film provided on at least one surface of the thermal insulation layer and/or said compressible barrier layer. The different layers and materials and their combinations are designed to provide low effective thermal conductivity for the system by managing all modes of heat transfer. The thermal insulation system includes an optional outer casing surrounding the multilayered composite. The thermal insulation system is particularly suited for use in any sub-ambient temperature environment where moisture or its adverse effects are a concern. The thermal insulation system provides physical resilience against damaging mechanical effects including compression, flexure, impact, vibration, and thermal expansion/contraction.

A joint seal system and method may include a seal and a band. The seal may be positioned between abutting flanges of two adjacent duct sections. A band may be positioned over the two flanges and the flange interface. The joint seal system and method may be configured to mitigate and/or eliminate leakage of pressure, flue gases, condensate, and/or any other fluid, gas, and/or vapor between abutting flanges of duct sections at a flange interface.

Disclosed is a self-closing emergency coupling and detachment device for transporting cryogenic fluid, including two fluid transport pipes that extend in a longitudinal direction and each comprise, at a connection end, a valve mechanism configured to automatically close the pipe when the connection ends are separated and allow the pipe to be opened when the connection ends are coupled together, the device also including an outer tube that is arranged around each transport pipe and delimits a vacuum space for thermally insulating the transport pipe, the device being configured to delimit a defined sealed dead volume between the coupled connection ends, wherein the device comprises a system for draining the dead volume, the draining system being provided with a fluid circuit that is fluidically connected to the dead volume.

A support for coaxial flanges of a double-coaxial coupling includes a circular support structure providing a primary mounting zone for attaching a primary flange for connecting a primary outer tube, and a secondary mounting zone for attaching a secondary flange for connecting a coaxial secondary inner tube. The primary and the secondary mounting zones are spaced apart from each other in a radial direction for centering the primary and the secondary flanges in a radially spaced coaxial manner. The primary mounting zone provides an outer circumferential connection region with at least three mounting points for attaching the primary flange. The secondary mounting zone provides an inner circumferential connection region with at least three mounting points for attaching the secondary flange. A thermal path within the circular support structure between the mounting points of the primary and secondary mounting zones is longer than the distance between the two points.

A support clamp is provided for supporting an elongate object. The support clamp can include a clamp body that forms a cylindrical sleeve and a collar that extends radially inwardly from the cylindrical sleeve to provide an internal passageway sized to receive the elongate object. The clamp body can include first and second clamp sections that can each have, respectively, a sleeve wall that forms part of the cylindrical sleeve and a collar wall that forms part of the collar and includes an edge that extends radially between the sleeve wall and the internal passage. The edge of the first clamp section can include a channel profile, and the edge of the second clamp section can include a protruding profile. The protruding profile can be received into the channel profile to removably secure the first and second clamp sections together.

A radiation shield assembly for blocking radiation at a gas turbine piping connection joint is provided. The radiation shield assembly includes a radiation shield configured to surround the gas turbine piping connection joint. The radiation shield includes at least two shield portions coupled to one another at a pair of flanged joints. Each shield portion of the at least two shield portions include an inner shell, an outer shell, and insulation disposed between the inner shell and the outer shell.

A thermo-structural spacer is provided. The spacer includes a cylindrical center portion, a first flange connected to a first end of the cylindrical center portion, a second flange connected to a second end of the cylindrical center portion. The second end is distal from the first end. The spacer further includes an annular inner wall configured for providing a through hole extending through a longitudinal axis of the thermo-structural spacer. The cylindrical center portion is narrower than the first flange. The cylindrical center portion is narrower than the second flange. The thermo-structural spacer is configured for restricting heat transfer between the first flange and the second flange.

A coupling for vacuum-insulated piping is disclosed having first and second parts for forming the coupling; each of the first and second parts comprising an inner portion for fluid communication with an inner part of a vacuum-insulated pipe and an outer portion for fluid communication with an outer, low pressure part of a vacuum-insulated pipe; the inner portions of the first and second parts form an inner region for the passage of fluid therethrough; each of the first and second parts comprising an interface portion for forming an interface with interface portion of the other of the first and second parts, the interface portion comprising a flange for connecting the first and second parts; each of the first and second parts comprises a sleeve surrounding the outer portion, the sleeve comprising a thermally-conducting portion that is in thermal communication with the interface portion so as to conduct heat away from the interface portion.