IMPROVED ELECTRIC VALVE LIFT MECHANISM

A valve lift mechanism for actuating a valve in the vertical direction, and a regenerative thermal oxidizer including the valve and lift mechanism is disclosed. The valve is allowed to move vertically and oscillating rotary motion is possible. Vertical movement is achieved using the valve lift mecha...

Ausführliche Beschreibung

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Bibliographische Detailangaben
1. Verfasser:	BRIA, MICHAEL P
Format:	Patent
Sprache:	eng ; fre
Schlagworte:	ACTUATING-FLOATS BLASTING COCKS COMBUSTION APPARATUS COMBUSTION PROCESSES CONSUMING WASTE PRODUCTS BY COMBUSTION CREMATION FURNACES DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS,IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KINDOF FURNACE DEVICES FOR VENTING OR AERATING ENGINEERING ELEMENTS AND UNITS FURNACES GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS HEATING KILNS LIGHTING MECHANICAL ENGINEERING OVENS PERFORMING OPERATIONS PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL RETORTS SEPARATION TAPS TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION TECHNICAL SUBJECTS COVERED BY FORMER USPC TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS THERMAL INSULATION IN GENERAL TRANSPORTING VALVES WEAPONS
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Beschreibung
Zusammenfassung:	A valve lift mechanism for actuating a valve in the vertical direction, and a regenerative thermal oxidizer including the valve and lift mechanism is disclosed. The valve is allowed to move vertically and oscillating rotary motion is possible. Vertical movement is achieved using the valve lift mechanism without the use of compressed air. In certain embodiments, the valve lift mechanism includes a torque motor. Preferably, a screw jack is used to adjust the vertical height of the valve. Vertical movement can reduce the torque needed to rotate the valve, and also facilitates servicing of the valve. For example, if the valve experiences high temperature, and consequently expands, rotating the valve against the mating seal plate can be difficult, if not impossible. By lowering the valve slightly, the frictional forces between the valve and the mating seal plate are reduced, allowing freer rotational movement of the valve.