MITIGATION OF IN-TUBE FOULING IN HEAT EXCHANGERS USING CONTROLLED MECHANICAL VIBRATION

FOULING OF HEAT EXCHANGE SURFACES IS MITIGATED BY A PROCESS IN WHICH A MECHANICAL FORCE IS APPLIED TO A FIXED HEAT EXCHANGER (10) TO EXCITE A VIBRATION IN THE HEAT EXCHANGE SURFACE AND PRODUCE SHEAR WAVES IN THE FLUID ADJACENT THE HEAT EXCHANGE SURFACE. THE MECHANICAL FORCE IS APPLIED BY A DYNAMIC A...

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Bibliographische Detailangaben
Hauptverfasser:	LOBO, JULIO D, BRONS, GLEN B, LUTZ, GEORGE A, JOSHI, HIMANSHU M, CHHOTRAY, SAN, SONG, LIMIN
Format:	Patent
Sprache:	eng
Schlagworte:	BLASTING CLEANING OF INTERNAL OR EXTERNAL SURFACES OF HEAT-EXCHANGE ORHEAT-TRANSFER CONDUITS, e.g. WATER TUBES OR BOILERS DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OFGENERAL APPLICATION HEAT EXCHANGE IN GENERAL HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS,IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT HEATING LIGHTING MECHANICAL ENGINEERING WEAPONS
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Zusammenfassung:	FOULING OF HEAT EXCHANGE SURFACES IS MITIGATED BY A PROCESS IN WHICH A MECHANICAL FORCE IS APPLIED TO A FIXED HEAT EXCHANGER (10) TO EXCITE A VIBRATION IN THE HEAT EXCHANGE SURFACE AND PRODUCE SHEAR WAVES IN THE FLUID ADJACENT THE HEAT EXCHANGE SURFACE. THE MECHANICAL FORCE IS APPLIED BY A DYNAMIC ACTUATOR (20) COUPLED TO A CONTROLLER (22)TO PRODUCE VIBRATION AT A CONTROLLED FREQUENCY AND AMPLITUDE OUTPUT THAT MINIMIZES ADVERSE EFFECTS TO THE HEAT EXCHANGE STRUCTURE. THE DYNAMIC ACTUATOR (20) MAY BE COUPLED TO THE HEAT EXCHANGER IN PLACE AND OPERATED WHILE THE HEAT EXCHANGER (10) IS ON LINE.