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: 11.10.2022
• 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. The flue control valve comprises a valve seat and a valve element plate, the valve seat is installed in a flue gas channel and forms an annular inner sealing face, and an annular outer sealing face is formed on the periphery of the valve element plate. In the closed state, a fluid sealing ring groove is formed in the annular inner sealing face and the annular outer sealing face, and the fluid sealing ring groove is communicated with a pressure fluid supply source through a preset fluid control valve. The annular inner sealing face and the annular outer sealing face are matched to form primary sealing, then fluid is filled into the fluid sealing ring groove through the pressure fluid supply source and the fluid control valve, secondary fluid sealing of the annular inner sealing face and the annular outer sealing face is achieved, the sealing effect of the flue control valve can be guaranteed, and to-be-treated flue gas is prevented