A pipeline to transport a frozen medium is indicated which has an outer transversely to its longitudinal direction undulated limiting pipe, arranged inside are at least one metal pipe for guiding the frozen medium as well as a cooling pipe composed of metal for guiding a second frozen medium. In the limiting pipe hollow areas are available for evacuation. Fitted inside the limiting pipe are at least two transversely to their longitudinal direction undulated metal pipes for guiding the frozen medium, which are each surrounded by a thermal insulation. During the operation of the pipeline the frozen medium is led in different directions through both the metal pipes. Attached around both the metal pipes and the cooling pipe is a pipe shaped closed sleeve composed of a thermally good conductive material that is in contact with the cooling pipe.

A pipeline to transport a frozen medium is indicated which has an outer transversely to its longitudinal direction undulated limiting pipe, arranged inside are at least one metal pipe for guiding the frozen medium as well as a cooling pipe composed of metal for guiding a second frozen medium. In the limiting pipe hollow areas are available for evacuation. Fitted inside the limiting pipe are at least two transversely to their longitudinal direction undulated metal pipes for guiding the frozen medium, which are each surrounded by a thermal insulation. During the operation of the pipeline the frozen medium is led in different directions through both the metal pipes. Attached around both the metal pipes and the cooling pipe is a pipe shaped closed sleeve composed of a thermally good conductive material that is in contact with the cooling pipe.

Provided herein is a method for sterile fluid transfer. A first array of conduits may be disposed in a first compartment having a planar face with an array of cavities, each containing a cannular protrusion fluidly connected to a conduit. A second array of conduits may be disposed in a second compartment having its own planar face with an array of surface cannular protrusions, each fluidly connected to a conduit in the second array. The method may include sterilizing the lumens of each conduit-protrusion pair; snugly juxtaposing the two planar faces to form an array of steam-tight chambers; introducing a sterilizing gas into the chambers; expelling the sterilizing gas from the chambers; moving each cannular protrusion towards its facing surface protrusion to reversibly form a fluid connection therebetween, while the chamber remains externally sealed, and transferring a fluid across at least one fluidic connection.

Provided herein is a method for sterile fluid transfer. A first array of conduits may be disposed in a first compartment having a planar face with an array of cavities, each containing a cannular protrusion fluidly connected to a conduit. A second array of conduits may be disposed in a second compartment having its own planar face with an array of surface cannular protrusions, each fluidly connected to a conduit in the second array. The method may include sterilizing the lumens of each conduit-protrusion pair; snugly juxtaposing the two planar faces to form an array of steam-tight chambers; introducing a sterilizing gas into the chambers; expelling the sterilizing gas from the chambers; moving each cannular protrusion towards its facing surface protrusion to reversibly form a fluid connection therebetween, while the chamber remains externally sealed, and transferring a fluid across at least one fluidic connection.

The present invention relates to an internal heat exchanger double-tube structure of an air conditioning system having an alternative refrigerant applied thereto for heat exchange between a low-temperature low-pressure refrigerant discharged from an evaporator and a high-temperature high-pressure refrigerant discharged from an condenser, the double-tube structure including: an inner pipe having a channel through which the low-temperature low-pressure refrigerant discharged from the evaporator flows; and an outer pipe surrounding the inner pipe and having a channel through which high-temperature high-pressure refrigerant flows, wherein the inner pipe has a spiral groove forming a channel on an outer side thereof, and the spiral groove is a recessed groove for generating a vortex that increase a channel volume where high-temperature high-pressure liquid flows inward and reduces a vortex of flowing fluid.

In a cooling device for a high temperature pipe, a high temperature pipe is efficiently cooled, and cooling performance is improved. A cooling device (10) for a high temperature pipe that cools a surface to be cooled (104) of a pipe (100) as a high temperature pipe includes: a cooling medium supply header (11) that is disposed so as not to shield heat dissipation by radiation from the surface to be cooled (104) to the periphery, and allows a cooling medium to flow out toward the surface to be cooled (104); and a cooling medium supply device (12) that supplies the cooling medium to the cooling medium supply header (11).

In a cooling device for a high temperature pipe, a high temperature pipe is efficiently cooled, and cooling performance is improved. A cooling device (10) for a high temperature pipe that cools a surface to be cooled (104) of a pipe (100) as a high temperature pipe includes: a cooling medium supply header (11) that is disposed so as not to shield heat dissipation by radiation from the surface to be cooled (104) to the periphery, and allows a cooling medium to flow out toward the surface to be cooled (104); and a cooling medium supply device (12) that supplies the cooling medium to the cooling medium supply header (11).

A transfer line includes a first conduit, a first insulation part, a first protective shield, a second conduit, a second insulation part and a second protective shield. Cryogenic liquid flows through the first conduit. The first insulation part surrounds the first conduit and has a multi-layered film structure. Film layers of the multi-layered film structure are spaced apart from each other. The first protective shield is formed with a predetermined thickness and diameter to surround the exterior of the first insulation part. Coolant for cooling the first protective shield flows through the second conduit. The second conduit is in contact with the first protective shield. The second insulation part surrounds the first protective shield and the second conduit, and has the multi-layered film structure. The second protective shield is formed with a predetermined thickness and diameter to surround the exterior of the second insulation part.

A humidity generator having a cooling pipe that includes a cooling pipe inlet, a liquid chamber, and a cooling pipe outlet. An airflow path is defined between the cooling pipe inlet and the cooling pipe outlet, such that during operation, air enters through the cooling pipe inlet, passes over water disposed in the liquid chamber, flows through the cooling pipe, and exits through the cooling pipe outlet.

A method and apparatus are disclosed for re-terminating an end of a flexible pipe. The method comprises removing at least one original end fitting component (310, 335) from a multicomponent end fitting, secured to flexible pipe body at an end of a flexible pipe, leaving a retained portion (330, 360) of the end fitting in situ and subsequently securing at least one superseding end fitting component (310, 335) to the retained portion thereby providing a new fluid tight seal against a fluid retaining layer of the flexible pipe at a new sealing location axially displaced from an original sealing location.