Induction heating apparatus and methods are presented for pipe end heating using a solenoid coil to heat a controlled length of a pipe workpiece by adjusting the relative positions of the solenoid coil with a flux diverter positioned relative to the pipe end to divert flux from the coil to control inductive heating of the pipe workpiece end.

A medical treatment system, such as peritoneal dialysis system, may include control and other features to enhance patient comfort and ease of use. For example, a peritoneal dialysis system may include a control system that can adjust the volume of fluid infused into the peritoneal cavity to prevent the intraperitoneal fluid volume from exceeding a pre-determined amount. The control system can adjust by adding one or more therapy cycles, allowing for fill volumes during each cycle to be reduced. The control system may continue to allow the fluid to drain from the peritoneal cavity as completely as possible before starting the next therapy cycle. The control system may also adjust the dwell time of fluid within the peritoneal cavity during therapy cycles in order to complete a therapy within a scheduled time period. The cycler may also be configured to have a heater control system that monitors both the temperature of a heating tray and the temperature of a bag of dialysis fluid in order to bring the temperature of the dialysis fluid rapidly to a specified temperature, with minimal temperature overshoot.

A heater for heating and vaporizing droplets in gas stream, comprising a heater housing and a heater body located inside the heater housing, wherein the heater housing is provided with an airflow inlet and an airflow outlet, the airflow enters into the heater housing via the airflow inlet, flows through the heater body, and then is discharged via the airflow outlet; the heater body comprises a stereoscopic network structure formed by interweaving one or more electrical heating wires. The use of the heater and a method for preparing isocyanate using the heater. The heater has a simple structure, a low pressure loss, uniform heating and a high heat utilization ratio during preparing isocyanate.

A double-switching heater includes a double-switching PTC ink deposited on a substrate to form one or more resistors. The double-switching PTC ink has a first resin that provides a first PTC effect at a first temperature range and a second resin that provides a second PTC effect at a second temperature range, where the second temperature range is higher than the first temperature range. The substrate may be a flexible substrate or a rigid substrate, and may bedeformable to generate a three-dimensional structure. The substrate may be: polyester, polyimide, polyamide, polypropylene, thermoplastic polyurethane, fiberglass, cement board, carbon composite materials, polyethylene terephthalate, polyethylene, aluminum, steel, glass composite, molded plastic, high-density polyethylene or styrene ethylene butylene styrene.

The present invention relates to an offshore pipe system comprising a first unbonded flexible pipe and a second unbonded flexible pipe for transportation of fluids such as oil or gas. Each of the unbonded flexible pipes comprises a sealing sheath and an electrically conductive armor layer, and, moreover, the system comprises a first end fitting connected to the first end of the first unbonded flexible pipe and a second end fitting connected to the first end of the second unbonded flexible pipe. In the offshore pipe system the electrically conductive armor layer of the first unbonded flexible pipe is electrically connected with the electrically conductive armor layer of the second unbonded flexible pipe via a first electrical connection and a second electrical connection. To obtain an electrical circuit the first and second electrical connections are applied with a distance along the length of the first unbonded flexible pipe and the second unbonded flexible pipe, respectively. The invention also relates to a method for heating pipes by forming an electrical circuit between the pipes.

A fluid line includes a pipe, a connector having a pipe connection arranged at one end of the pipe, and a through-channel through the connector, wherein the pipe connection surrounds a portion of the through-channel, and a heater structured and arranged within the pipe and the connector to heat at least a portion of the pipe and at least a portion of the connector. A flow cross section of the through-channel section at least on a part of its length is no more than 60% of a flow cross section of the pipe.

A subsea switchgear for switching the power supply to plural subsea loads includes a subsea enclosure, to allow the deployment of the subsea switchgear at a subsea location; a power input for receiving AC electrical power from a power source; at least two power outputs for giving out AC electrical power; and a power distribution bus for distributing the received AC electrical power to the at least two power outputs. In at least one embodiment, between each power output and the power distribution bus, a contactor is connected which is controllable to connect or disconnect the respective power output from the power distribution bus.

A heatable fluid line is disclosed having a tube, a connector that comprises a housing which is arranged at an end of the tube, and a heating rod that is arranged in the interior of the tube and enters into the housing through an inlet channel having a longitudinal axis and exits out of the housing through an opening arranged in a neck, wherein a seal is arranged in the neck, which seal surrounds the heating rod and is held in the neck by a plug (21). The object is to be able to achieve a reliable assembly in a simple manner. For this purpose, it is provided that the plug (21) comprises at least two parts (22, 23) which are connected to one another by an articulation section (24) having an articulation axis.

A heating device which transfers heat isothermally to an object to be heated. The heating device includes: a block and a base plate which surround a pipe; a first heat insulating cover which covers an outer periphery of the block and the base plate and forms a first heat insulating layer; and a second heat insulating cover which covers an outer periphery of the first heat insulating cover and forms a second heat insulating layer. The first heat insulating cover includes first heat insulating covers fixed to the block and the base plate respectively. The second heat insulating cover includes second heat insulating covers fixed to each of the first heat insulating covers respectively. The heating device further includes snap locks which detachably fixes the second heat insulating covers.

A method for controlling a pipeline system is provided. The method includes powering on an electrical heating source for heating the pipeline system. The method further includes powering off the electrical heating source, powering at least a sensor along the pipeline system for measuring a physical property, and communicating the measured data to a remote communication destination.