Abstract: The invention relates to a heat exchange device comprising a channel wall defining a flow channel with an inlet for receiving a gas flow. The device further comprises one or more heat exchange surfaces positioned inside the flow channel creating different parallel flow paths for the gas flow through the flow channel, at least one of the heat exchange surfaces embedding one or more flow paths for a fluid heat exchange medium. The one or more deflection elements are positioned inside the flow channel and are attached to the channel wall to deflect the gas flow away from the channel wall.

Abstract: The invention relates to a heat exchange device comprising a channel wall defining a flow channel with an inlet for receiving a gas flow. The device further comprises one or more heat exchange surfaces positioned inside the flow channel creating different parallel flow paths for the gas flow through the flow channel, at least one of the heat exchange surfaces embedding one or more flow paths for a fluid heat exchange medium. The one or more deflection elements are positioned inside the flow channel and are attached to the channel wall to deflect the gas flow away from the channel wall.

Abstract: Tubular wall assembly (8) comprising a plurality of tubular conduits (10) in parallel arrangement interconnected to form a gastight structure, each tubular conduit (10) being connected on one end to a common distributor (12) and on another end to a common header (11), wherein through each conduit a flow path extends between the distributor and the header, wherein each flow path crosses a passage opening in a seat (21, 28, 43) for an insertable flow restrictor (22, 44), wherein for each conduit the wall assembly comprises an opening (17, 51) bordered by a collar (15, 42) with an open end in line with the seat, wherein the open end of the collar is closed by a cap (26, 35, 49).