PURGE AND PRESSURIZATION SYSTEM WITH FEEDBACK CONTROL

An air purge and pressurization system that utilizes a variable speed fan and a feedback loop to optimize system operation is described herein. In one embodiment, such a system can include an enclosed container located in an area classified as hazardous, a controller rated for operation within the h...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	ROBINSON, KENT W, MOSES, RANDY A
Format:	Patent
Sprache:	eng ; fre
Schlagworte:	BOTTLES, JARS OR SIMILAR CONTAINERS CONTROLLING DISPENSING, DELIVERING OR TRANSFERRING LIQUIDS, NOT OTHERWISEPROVIDED FOR FIRE-FIGHTING HUMAN NECESSITIES LIFE-SAVING LIQUID HANDLING OPENING, CLOSING PERFORMING OPERATIONS PHYSICS REGULATING SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES TRANSPORTING
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Beschreibung
Zusammenfassung:	An air purge and pressurization system that utilizes a variable speed fan and a feedback loop to optimize system operation is described herein. In one embodiment, such a system can include an enclosed container located in an area classified as hazardous, a controller rated for operation within the hazardous area, and a pressure sensor located within the container and coupled to the controller. The system can also include a variable-speed fan located outside the hazardous area and coupled to the controller. The controller can be configured to monitor air pressure within the container and variably control a speed of the fan to maintain the detected pressure above a minimum value. Accordingly, a required pressure can be maintained while minimizing a volume of air forced into the container.