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AssigneeL'Air Liquide, Societe Anonyme pour l'Etude et l’Exploitation des Procedes Georges Claude
InventorsNicolas GALLIENNE, Ludovic AMANT, Eric HENDRICKX, Daniel GARY
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The invention relates to a heat exchanger of the brazed plate type having a stack of plates arranged parallel to one another so as to define between the plates a plurality of passages for the flow of one or more fluids, the plates each having at least a first edge extending parallel to a first direction, at least one sealing bar being arranged in at least one passage defined between two consecutive plates so as to at least partially delimit one or more internal volumes in the passage, the sealing bar having at least one longitudinal recess, the sealing bar and the longitudinal recess extending, in the direction of their length, parallel to the first direction. At least one measuring member is arranged in the longitudinal recess and configured to measure at least one physical quantity, in particular at least one temperature, in the longitudinal recess.
A brazed plate type heat exchanger comprising a stack of plates arranged parallel to one another thereby defining between said plates a plurality of passages, the plates each comprising at least a first edge extending parallel to a first direction, at least one passage defined between two consecutive plates comprising at least one sealing bar, having a first length, arranged to at least partially delimit one or more internal volumes for the flow of one or more fluids within said passage, the sealing bar comprising at least one longitudinal recess, having a second length, the sealing bar and the longitudinal recess extending, in the direction of first length and the second length, parallel to the first direction, wherein at least one measuring member is arranged in the longitudinal recess and configured to measure at least one physical quantity in said longitudinal recess.
A heat exchange installation comprising a brazed plate type heat exchanger comprising a stack of plates arranged parallel to one another so as to define between said plates a plurality of passages, the plates each comprising at least a first edge extending parallel to a first direction, at least one passage defined between two consecutive plates comprising at least one sealing bar having a first length and arranged to at least partially delimit one or more internal volumes for the flow of one or more fluids within said passage, the sealing bar comprising at least one longitudinal recess having a second length, the sealing bar and the longitudinal recess extending, in the direction of the first length and the seonc length, parallel to the first direction, wherein at least one measuring member is arranged in the longitudinal recess and configured to measure at least one physical quantity in said longitudinal recess and comprising at least one distribution pipe configured to distribute one or more fluids in one or more internal volumes of at least one passage, at least one fluid control device configured to authorize, modify and/or stop the distribution of at least one fluid through the distribution pipe, the measuring device being configured to generate at least one leak signal in response to a variation in said physical quantity and the control device being configured to modify or stop the distribution of said fluid through the distribution pipe in response to said leak signal.
A cryogenic air separation unit comprising at least one exchanger brazed plate type heat exchanger comprising a stack of plates arranged parallel to one another so as to define between said plates a plurality of passages, the plates each comprising at least a first edge extending parallel to a first direction, at least one passage defined between two consecutive plates comprising at least one sealing bar arranged to at least partially delimit one or more internal volumes for the flow of one or more fluids within said passage, the sealing bar comprising at least one longitudinal recess, the sealing bar and the longitudinal recess extending, in the direction of their length, parallel to the first direction, wherein at least one measuring member is arranged in the longitudinal recess and configured to measure at least one physical quantity in said longitudinal recess, in which unit said exchanger effects liquefaction or cooling of a flow of gaseous oxygen coming from the cryogenic air separation unit with liquid nitrogen or liquid argon which heats or vaporizes.
Dependencies are inferred from the claim text.