Integrated all-welded ball valve

• Main Authors: JIA JIANLIANG, WANG HAILE, ZHENG BOTAO
• Format: Patent
• Language: Chinese; English
• Published: 25.12.2020
• 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; PIPE-LINE SYSTEMS; PIPE-LINES; STORING OF DISTRIBUTING GASES OR LIQUIDS; TAPS; THERMAL INSULATION IN GENERAL; VALVES; WEAPONS

The utility model discloses an integrated all-welded ball valve which comprises a ball valve body, connecting flanges are connected to the two sides of the ball valve body, a valve rod is arranged atthe top end of the ball valve body, a rotating wheel is connected to the front side of the valve rod, and the ends, away from each other, of the two connecting flanges are connected with external pipelines. The top end of the connecting flange is connected with a supporting frame. Through the pressure sensor, the pressure bearing plate, the cylindrical inflatable bag, the supporting frame, the first sealing strip and the second sealing strip, when gas leakage occurs at the joint of the connecting flange and the external pipeline, the gas can be inflated between the cylindrical inflatable bag and the connecting flange as well as the external pipeline, so that the cylindrical inflatable bag is bulged and pressed on the pressure sensor; furthermore, the pressure sensor transmits a pressure signal to an external worke