The invention relates to a heatable tube (1) for conducting fluid, gaseous and/or pasty media, comprising an outer wall (10) that encloses an inner volume (11), and a heating element (2) which is arranged inside the inner volume (11) and which includes at least one first heating conductor (20a) that is surrounded by a first heating conductor insulation (21) insulating the heating conductor from the inner volume (11). The invention is characterized in that the first heating conductor insulation (21) insulating the heating conductor from the inner volume (11) is surrounded by a second heating conductor insulation (22).

A removable independent steam jacket for a bottom outlet valve of a railroad tank car able to connect to an existing bottom outlet valve, with or without an integral steam jacket, in a field environment without having to take the tank car in for repairs having a partially annular hollow base with a rectangular cross-section and a plurality of pipes connected to the base extending away from the bottom of the base. The removable steam jacket also has a plurality of mounting brackets connected to the bottom the base for installing and removing it from the bottom outlet valve.

A hydrocarbon heating system for a hydrocarbon production and/or transportation system comprising at least one electrical conductor and an alternating current (AC) power source connected to the at least one electrical conductor. The alternating current power source generates heat in the at least one electrical conductor by providing alternating current power to the at least one electrical conductor.

A device for transporting a fluid medium to a metering module for metering a liquid reducing agent into an exhaust gas system in order to reduce pollutants in an exhaust gas. The device has at least one heated transport line and at least one system component with a heated internal region. The transport line has a line connecting piece, and the system component has a module connecting piece that is directly or indirectly coupled to the line connecting piece. The device includes at least one heat conducting sleeve that can be inserted in the line connecting piece and the module connecting piece. The heat conducting sleeve is thermally coupled to the heated transport line and/or the heated internal region in order to transmit heat.

A pipeline system includes a pipeline portion; at least one sensor on the pipeline portion for measuring a physical property of the pipeline portion or of a fluid inside the pipeline portion; and an electromagnetic field source distributed along the pipeline portion and creating an electromagnetic field around the pipeline portion, the at least one sensor including an accumulator for storing an electric charge induced in the accumulator when the sensor is subject to the electromagnetic field created by the electromagnetic field source, the accumulator being able to power the at least one sensor by way of the stored electric charge.

The invention relates to a heatable tube (1) for conducting fluid, gaseous and/or pasty media, comprising an outer wall (10) that encloses an inner volume (11), and a heating element (2) which is arranged inside the inner volume (11) and which includes a first heating conductor (20a) and a second heating conductor (20b). The heatable tube (1) is characterized in that the first heating conductor (20a) and the second heating conductor (20b) are connected to one another by a heating conductor connector (20c) so as to form a loop in such a way that one heating conductor (20a, 20b) acts as a feed conductor (20a, 20b) and the other heating conductor (20a, 20b) acts as a return conductor (20a, 20b).

A heatable media line is characterized by a connecting part (4), which establishes an electrical connection, and serves to introduce a heat conductor (14) into a media line section (5). A connection of the heat conductor (14) with contact-forming parts is set up in an end part (10), and the heat conductor (14) is tightly accommodated in boreholes (11, 12) of a coupling part (9) by means of two sealing bodies (15, 16) spaced apart from each other, as well as introduced into the media line section (5) by way of a supporting body (19) for purposes of heating a medium flowing in the latter. In order to produce a reliable seal intended to prevent the medium from penetrating into the end part (10), and associated herewith the potential generation of a short circuit between electrically conductive parts, it is provided that recesses (17, 18) in the walls of the coupling part (9) and an interruption of a creepage distance be set up between the sealing bodies (15, 16), by means of which the heat conductor (14) is directly connected with the surrounding atmosphere.

A heat transfer device that can improve temperature uniformity along the entire length of a pipe line housed in the heat transfer device is provided. The heat transfer device transferring heat to the pipe line in which a fluid flows includes: a heat transfer block of high heat conductivity, surrounding the pipe line, a heat pipe formed in the heat transfer block, along an extending direction of the pipe line, and a heater applying heat to the heat pipe. The heat transfer block includes a plurality of divided blocks dividable along the extending direction of the pipe line. There is provided a proximity portion where the heat transfer block is in proximate to the pipe line at both ends of the heat transfer block in the extending direction of the pipe line.

Disclosed are apparatus, systems and methods for maintaining desired thermal properties of a flowing hydrocarbon fluid in a subsea pipeline. An insulating layer including a plurality of elongated hollow elements containing an insulation material can surround the pipeline. The apparatus can be located on a seabed and connected to a source of hydrocarbon fluid at one end and to a facility for processing hydrocarbon fluid at another end. One method includes spirally winding an elongated hollow element containing an insulation material around the subsea pipeline. One method includes wrapping the subsea pipeline with a connecting layer which includes surface protrusions protruding radially outwards. An insulating layer having surface features reversibly engageable with the surface protrusions of the connecting layer can be reversibly attached to the connecting layer by engaging the surface features of the at least one elongated hollow element with the surface protrusions of the connecting layer.

Heater modules are configured for streamlined daisy chain connectivity that includes front end and intermediate daisy chain power injection, water resistant heater assemblies, and shielding. A power injection device is configured with connectivity for insertion of power into heater modules that are in front and intermediate daisy chain positions while enabling data communications between heater modules positioned on opposite sides of the power injection locations.