Abstract: A gas wiping device for controlling a thickness of a coating layer deposited on a running metal strip plated with molten metal in an industrial hot-dip installation includes: a main nozzle unit and a secondary nozzle unit, for blowing a wiping jet on a surface of the running strip, the main nozzle unit and secondary nozzle unit respectively including a main and secondary chamber fed by pressurized non-oxidizing gas and at least a main and secondary elongated nozzle slot formed in a tip of the respective main and secondary nozzle units, the tips each including an external top side, facing a downstream side of the running strip, and making an angle with the surface of the running strip. The secondary nozzle unit is adjacent the main nozzle unit over an external top side of the main nozzle unit tip.

Abstract: A gas blower device for blowing gas onto a surface of a traveling strip includes a plenum in the form of a hollow box for containing gas and comprising two side surfaces, a back surface and a front surface opposite to the back surface. The front surface having a profile of convex type symmetry with respect to a mid-plane perpendicular to the plane of the strip, so that a middle ridge of the front surface is located at the smallest distance from the plane of the strip. The front surface further presenting multiple tubular nozzles protruding at the front surface and having a gas outlet orifice facing in use the traveling strip. All the outlet orifices are essentially in a plane parallel to the strip plane. The gas blower device further includes a gas intake tube for feeding the plenum with gas.

Abstract: A solar receiver heat transfer pressurized fluid system includes: a pressure relief valve; and a trapping device for separating liquid droplets from a pressurized gas released by the pressure relief valve and to capture the liquid droplets. The trapping device includes: a horizontal pipe; a liquid trap element extending from the horizontal pipe for catching separated liquid droplets; and a vertical exhaust pipe connected to the horizontal pipe substantially in a perpendicular manner and having an open end for discharging in atmosphere the pressurized gas released by the pressure relief valve. The horizontal pipe includes a first connection means for removably connecting at a first end to the pressure relief valve and a second connection means for removably connecting at a second end to the liquid trap element. The vertical exhaust pipe is connected to the horizontal pipe between the first end removably connectable to the pressure relief valve.

Abstract: A heat exchanger includes: a first straight section; a second straight section; and a bent section or elbow linking the first straight section and the second straight section. Each straight section comprises a part of an internal cylindrical shell and of an external cylindrical shell, both cooperating to form an intershell space enclosing a bundle of parallel U-bent tubes having each a first and a second straight part respectively located in the first straight section and second straight section of the exchanger and a 180°-bent part located in the bent section or elbow of the exchanger, so that, in use, a first fluid to be heated and vaporized is flowing in the tubes. The external cylindrical shell is provided respectively at one end with an inlet and at another end with an outlet for a second fluid which is a hot thermal fluid.