A heat shield has a first layer, a second layer and a third layer. The first layer may have an outer surface and an inner surface. The second layer may have a first inner surface and a second inner surface. The third layer may have an inner surface and an outer surface, where the outer surface is defined by a plurality of dimples.

A thin-film treatment apparatus for treating viscous material, including a housing, having a heatable and/or coolable housing casing, which encloses a rotationally symmetric treatment chamber extending in the axial direction, an inlet port, arranged in an inlet region of the housing, for feeding the material to be treated into the treatment chamber, an outlet port, arranged in an outlet region of the housings, for discharging the material from the treatment chamber, and a coaxially extending, drivable rotor shaft, arranged in the treatment chamber, for producing a material film on the inner face of the housing casing and for conveying the material in the direction from the inlet region toward the outlet region, the rotor shaft including a central rotor shaft body and rotor blades arranged on the circumference thereof, the radially outermost end of which rotor blades is distanced from the inner face of the housing casing.

A heat exchange unit (100) for hot gas recovery comprising, an inlet duct (34) to which a heat exchange duct (59) and a bypass duct (58) are connected, one being surrounded by the other, a heat exchange array (2) situated within the heat exchange duct (59) and a damper (50) arranged to direct the flow of gas through the unit (100), such that the damper (50) is situated within the inlet duct (34) and has two extreme positions, such that in a first extreme position the damper provides a first continuous surface and substantially seals one of the heat exchange and bypass ducts from the inlet duct and in the other extreme position the damper provides a second continuous surface and substantially seals the other of the ducts from the inlet duct.

A syngas loop boiler includes a casing that surrounds a tube bundle, wherein the tube bundle includes a plurality of tubes. One end of each of the tubes is joined to a tube-sheet provided with corresponding tube-sheet inlet holes for inletting the syngas in the boiler, wherein each tube-sheet inlet hole is internally provided with at least a protective sleeve welded at both ends to corresponding surfaces of the tube-sheet inlet hole. Each tube-sheet inlet hole is provided with a first respective weld overlay placed at the inlet mouth of the tube-sheet inlet hole, so that a first end of each protective sleeve is welded to the first weld overlay. Each tube-sheet inlet hole is internally provided with at least a bore groove that contains a respective in-bore second weld overlay, so that the second end of the protective sleeve is welded to the in-bore second weld overlay. Each protective sleeve is thus welded at both ends to respective weld overlays, with the possibility of removal and re-installation without performing any post weld heat treatment.

A refractory panel for a heat exchanger is provided having a body including a first planar surface having a plurality of refractory openings formed therein. A sidewall is arranged about a periphery of at least one of the plurality of refractory openings. The sidewall extends outwardly from the first planar surface and is configured to extend through an adjacent component into an inlet of a heat exchanger coil.

The invention relates ton attemperator. It has a pipe section (3) and a liner pipe section (4) arranged within the pipe section (3) and being attached thereto. The pipe section (3) has an internal wall surface (33) and the liner pipe section (4) has an external wall surface (43). The internal wall surface (33) and external wall surface (43) form a gap (6) between them. The pipe section (3) and liner pipe section (4) each has an inlet end (31, 41) for connection to a steam supply and an outlet end (32, 42) for steam. The attemperator is provided with water injection means (2) arranged for supplying water into the interior of the liner pipe section (4). The inlet end (31) of the liner pipe section (3) has an outwardly extending wall portion (44) forming an outer circumferential outer zone (45), which zone (45) may contact the internal wall surface (33) of the pipe section (3).

According to the invention there is provided a plurality of openings (47) arranged to allow steam to enter the space formed by the gap (6) between the internal wall surface (33) and the external wall surface (43).

The invention also relates to a use of the attemperator.

A method includes building a tubular object by a layer-by-layer additive manufacturing process. A structure integrally connected to the tubular object for supporting a portion of the tubular object is formed during building of the tubular object. The structure provides vibration dampening, heat shielding, heat transfer, stiffening, energy absorption, or mounting after the tubular object is built.

Shell-and-tube equipment includes a shell that surrounds a plurality of tubes. At least one end of each tube is joined to an inlet tube-sheet provided with respective tube-sheet bores. The inlet tube-sheet is provided with a first side and with a second side. The inlet tube-sheet is connected to each tube of the tube bundle, on its second side, in such a way that each tube does not extend inside the respective tube-sheet bore. The inlet tube-sheet is provided, on at least part of its tube-sheet bores, with respective tubular protection devices. Each tubular protection device is made in the form of a butt, or a piece of tube, that extends from the first side of the inlet tube-sheet at a respective tube-sheet bore.

An immersion tank includes a tank main body in which refrigerant is stored, and a member that is disposed on the tank main body and retracts, when an electronic apparatus is loaded into the tank main body, to a bottom portion of the tank main body but extends, when the electronic apparatus is unloaded from the tank main body, upwardly from the bottom portion.

A valve system comprises a plurality of motors and a plurality of valves. The plurality of motors is formed from a printed circuit board. The plurality of valves is actuated by the plurality of motors.