Multi-media rotating sootblower and automatic industrial...

F - Mech Eng,Light,Heat,Weapons – 23 – J

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F23J 3/02 (2006.01) F28G 3/16 (2006.01) F28G 15/04 (2006.01)

Patent

CA 2491960

A multi-media rotating sootblower that includes multiple rotating and individually controlled cleaning fluid applicators, such a set of steam nozzles and two sets of water nozzles, and an automatic boiler cleaning system using these sootblowers. The boiler superheater typically includes a system of these sootblowers to clean a number of large platens that are arranged in rows. The boiler may also include additional boiler cleaning equipment, including water cannons to clean the furnace, and conventional steam sootblowers to clean other heat exchangers of the boiler. A number of sensors, including heat transfer gauges that measure the heat transfer at the furnace wall, strain gauges that measure the weight of slag deposits on platens, and boiler cameras are used to monitor slag accumulations within the boiler. A control system uses this sensor data to automatically operate the boiler cleaning system to implement an automatic boiler cleaning regimen.

La présente invention concerne un appareil de ramonage rotatif multi-support qui comprend de multiples applicateurs de fluides nettoyants rotatifs commandés individuellement, tels qu'un ensemble de buses à vapeur et que deux ensemble de buses à eau, et un système de nettoyage de chaudière industrielle automatique utilisant ces appareils de ramonage. La chaudière de superchauffage comprend habituellement un système constitué de ces appareils de ramonage destinés à nettoyer un certain nombre de grandes plaques agencées en rangs. La chaudière peut aussi comprendre un matériel de nettoyage de chaudière additionnel, notamment des canons à eau destinés à nettoyer le foyer, et des appareils de ramonage à vapeur classiques destinés à nettoyer d'autres échangeurs thermiques de cette chaudière. Un certain nombre de capteurs, comprenant des jauges de transfert thermique qui mesurent le transfert thermique au niveau de la paroi du foyer, des jauges de contrainte qui mesure le poids de dépôts de crasses sur les plaques, et on utilise des caméras de chaudière pour surveiller les accumulations de crasse à l'intérieur de la chaudière. Un système de commande utilise ces données de capteur pour faire fonctionner automatiquement ce système de nettoyage de chaudière afin de mettre en oeuvre un régime de nettoyage de chaudière automatique.

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