Anti-coking control valve of heating furnace

An anti-coking control valve of a heating furnace comprises a valve body and a valve stem. An oil inlet, an oil outlet, an air inlet and an air outlet are arranged on the valve body, and valve spools are disposed at the upper end and the lower end of the valve stem. The anti-coking control valve is...

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Bibliographische Detailangaben
Hauptverfasser:	BI JIAPING, WANG ZHIGANG, YANG LIMIN, TAI HONGLI
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	ACTUATING-FLOATS BLASTING COCKS DEVICES FOR VENTING OR AERATING ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS HEATING LIGHTING MECHANICAL ENGINEERING TAPS THERMAL INSULATION IN GENERAL VALVES WEAPONS
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Beschreibung
Zusammenfassung:	An anti-coking control valve of a heating furnace comprises a valve body and a valve stem. An oil inlet, an oil outlet, an air inlet and an air outlet are arranged on the valve body, and valve spools are disposed at the upper end and the lower end of the valve stem. The anti-coking control valve is characterized in that conical valve bases are respectively arranged at positions of the two corresponding valve spools inside the valve body, outer circle surfaces of the valve spools are conical and are respectively conically engaged with the conical valve bases, the oil inlet, the oil outlet, the air inlet and the air outlet respectively realize make or break through relative position changes of the valve spools and the conical valve bases, the valve spool located at the upper end of the valve stem is in split connection with the valve stem and is provided with an air guide holes communicated with the air inlet and the air outlet. The anti-coking control valve of a heating furnace has the advantages that the anti