A heat transfer element includes curved mounting surfaces configured to mate with an outer surface of a pipe for attachment thereto; and a channel configured to receive a tracer therein. The heat transfer element is configured to effect conductive heat transfer from the tracer to the pipe, or to process flowing through the pipe, when attached with heat transfer cement (HTC) to both the pipe and the tracer. A system includes a pipe and a tracer; HTC; and a heat transfer element having curved mounting surfaces configured to mate with an outer surface of the pipe and attached thereto via the HTC, and a channel in which the tracer is received and secured via HTC. The heat transfer element is configured to effect conductive heat transfer from the tracer to the pipe, or to process flowing through the pipe, when attached with HTC to both the pipe and the tracer.

A heat-insulated pipe assembly includes a pipe allowing a fluid to flow therethrough, and a heat insulating member covers at least a part of the pipe. The pipe is used in an exhaust gas purification system using an SCR catalyst. The heat insulating member has a closed-cell structure and suppresses an increase in a temperature of the fluid due to heat exchange with air. In the exhaust gas purification system using the SCR catalyst, the interior of the pipes is thermally insulated from the exterior by the heat insulating member. Thereby an increase in the temperature of the fluid flowing through the pipe due to heat exchange with air is suppressed.

Techniques for implementing and/or operating a system that includes a flexible pipe, which is formed into a pipe coil, and a pipe heating apparatus. The pipe heating apparatus includes a bore device to be moved to a target position within the pipe bore of the flexible pipe to facilitate isolating a segment of the flexible pipe from a remainder of the flexible pipe, one or more heating conduits connected to the bore device such that the one or more heating conduits are disposed in an upstream region of the pipe bore behind the bore device, and one or more heat sources to be connected to the bore device via the one or more heating conduits to enable the one or more heating conduits to heat the segment of the flexible pipe to facilitate unwinding the segment of the flexible pipe from the pipe coil.

Techniques for implementing and/or operating a system that includes a flexible pipe, which is formed into a pipe coil, and a pipe heating apparatus. The pipe heating apparatus includes a bore device to be moved to a target position within the pipe bore of the flexible pipe to facilitate isolating a segment of the flexible pipe from a remainder of the flexible pipe, one or more heating conduits connected to the bore device such that the one or more heating conduits are disposed in an upstream region of the pipe bore behind the bore device, and one or more heat sources to be connected to the bore device via the one or more heating conduits to enable the one or more heating conduits to heat the segment of the flexible pipe to facilitate unwinding the segment of the flexible pipe from the pipe coil.

To generate a checkpoint for a virtual machine (VM), first, while the VM is still running, a copy-on-write (COW) disk file is created pointing to a parent disk file that the VM is using. Next, the VM is stopped, the VM's memory is marked COW, the device state of the VM is saved to memory, the VM is switched to use the COW disk file, and the VM begins running again for substantially the remainder of the checkpoint generation. Next, the device state that was stored in memory and the unmodified VM memory pages are saved to a checkpoint file. Also, a copy may be made of the parent disk file for retention as part of the checkpoint, or the original parent disk file may be retained as part of the checkpoint. If a copy of the parent disk file was made, then the COW disk file may be committed to the original parent disk file.

A fluid pipeline has a first end and a second end. An elongated heat trace element comprised of first and second heat tubes is aligned and coupled to at least a portion of an outer surface of the fluid pipeline. The outer surface of fluid pipeline carries a first insulation material covering a first portion of the outer surface. The outer surface of the fluid pipeline further carries a second insulation material covering a second portion of the outer surface and wherein the second portion of the outer surface is different than the first portion of the outer surface. The first and second insulation materials are configured to cover the outer surface of the fluid pipeline. The fluid pipeline further comprises a third insulation material carried over a second outer surface defined by the cooperation of the first and second insulation materials.

A system for heating a pipeline comprises a heater operable to heat a fluid, a supply line and a return line. A first strap is positioned at a first portion of a pipeline. A first pocket of the first strap holds the supply line in thermal contact with the first portion of the pipeline. A second pocket of the first strap holds the return line in thermal contact with the first portion of the pipeline. A second strap is positioned at a second portion of the pipeline. A third pocket of the first strap holds the supply line in thermal contact with the second portion of the pipeline. A fourth pocket holds the return line in thermal contact with the second portion of the pipeline.

The subject of the present invention is a liquid dispenser intended for vehicles and a method implemented during the operation of such a liquid dispenser. The liquid dispenser for a vehicle includes a liquid dispensing circuit (2) connected at one end to a liquid reservoir and at the other end to a flexible hose (3) connected to a gun (4) for dispensing the liquid from a reservoir of the vehicle, the flexible hose (3) having two substantially coaxial ducts (5, 6) including a first duct (5) for transferring the liquid from the liquid dispensing circuit (2) to the gun (4) during the delivery of the liquid from the reservoir of the vehicle, and a second duct (6) extending along the first duct (5). The liquid dispenser includes a heating system (7) intended to generate a flow of hot air through the second duct (6) of the flexible hose (3) so as to heat the liquid inside the first duct (5) of the flexible hose (3).

The present invention discloses a high-temperature fluid transporting pipeline with a heat exchange apparatus installed therein, a suitable heat exchange apparatus and a heat exchange method, wherein heat contained in a high-temperature fluid can be recovered during the transportation thereof. The heat exchange apparatus comprises a heat exchange body inserted into the high-temperature fluid transporting pipeline, and a heat-receiving fluid coil installed therein. The method of heat exchange is that the high-temperature fluid heats an auxiliary fluid in a heat exchange cavity via a heat exchange panel of the heat exchange body in contact therewith, and the heated auxiliary fluid then conducts the heat to a heat-receiving fluid in the heat-receiving fluid coil. As an example, the high-temperature fluid is flue gas generated by combustion, the heat exchange apparatus of the present invention is inserted into a flue gas transporting pipeline, the auxiliary fluid is an inert gas such as air, and the air heated indirectly by the high-temperature flue gas conducts heat to fuel and/or oxygen-enriched gas (serving as an oxidant/combustion aid) flowing in the heat-receiving fluid coil.

A heated subsea pipeline includes a direct electrical heating (DEH) system that heats a central major portion of the pipeline. Supplementary heating systems extend along respective end portions of the pipeline, longitudinally outboard of the central portion heated by the DEH system. A flow of heating fluid is circulated along the end portions and may be circulated through an underwater vehicle that pumps and heats the flow.