Abrégé

A system providing for heat recovery from exhausted flue gas in a steam generator is described comprising a flue gas outlet conduit defining a flow path for flue gas from a flue gas outlet of a steam generator to a flue gas conduit junction point; a flue gas primary conduit defining a flow path for flue gas from the junction to a primary air preheater; a flue gas secondary conduit defining a flow path for flue gas from the junction to a secondary air preheater; wherein a steam generator process fluid heat exchanger is disposed within the flow path of the flue gas primary conduit upstream of the primary air preheater to recover some heat from the flue gas in advance of the primary air preheater. A method implementing the flow principles embodied in such a system is also described.

Classes IPC  ?

• F23L 15/00 - Réchauffage de l'air de combustion
• F22D 1/36 - Systèmes de préchauffage de l'eau et de l'air
• F22D 1/40 - Combinaisons de réchauffeurs fonctionnant avec de la vapeur d'échappement et des gaz de combustion

Abrégé

A vibration analysing device for determining the vibrational response of a structural element, comprising: a vibration sensor for providing an output in response to a force input imparted to the structural element; processing means adapted to determine one of a plurality of classifications in response to the output, each classification corresponding to a condition of the structural element; and display means for displaying the determined classification.

Classes IPC  ?

• G01N 29/024 - Analyse de fluides en mesurant la vitesse de propagation ou le temps de propagation des ondes acoustiques