Flue control valve for flue gas combustion device

• Main Authors: LU HUYI, JIA BAIXI, RAO WENJUN, ZHAO FENGQUAN, LIU CHANGSHENG, CHEN SHIAN, MA QUANHUI, MA JIEBO, MA XIANHONG, SHI YUEZHAN, ZHAO JIANGANG, LIU YURONG
• Format: Patent
• Language: Chinese; English
• Published: 18.04.2023
• Subjects: 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

The invention discloses a flue control valve for a flue gas combustion device. A valve seat of the flue control valve forms a valve seat sealing face, and a valve element assembly forms a valve element sealing face. The valve seat sealing surface comprises a first seat sealing surface and a second seat sealing surface; the valve core sealing surface comprises a first core sealing surface and a second core sealing surface; the first core sealing surface is provided with an elastic metal sealing ring; when the flue control valve is closed, the periphery of the elastic metal sealing ring abuts against and is matched with the first seat sealing face. The second seat sealing surface corresponds to the second core sealing surface, and the convex strip extends into the groove; and the groove is communicated with a pressure fluid source. By means of the flue control valve, the relative position of the valve seat and the valve element assembly can be limited through the elastic metal sealing ring, multi-sealing fluid