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    POROUS CYLINDER, GAS FLOW CONTROL VALVE, AND MOUNTING METHOD FOR GAS FLOW CONTROL VALVE
    6.
    发明公开
    POROUS CYLINDER, GAS FLOW CONTROL VALVE, AND MOUNTING METHOD FOR GAS FLOW CONTROL VALVE 审中-公开

    公开(公告)号：EP4159972A1

    公开(公告)日：2023-04-05

    申请号：EP21811773.7

    申请日：2021-05-20

    申请人： PetroChina Company Limited

    发明人： CHEN, Xinglong ,  XU, Jianguo ,  WU, Jiazhong ,  HAN, Haishui ,  ZHANG, Na

    IPC分类号： E21B43/16 ,  E21B34/02 ,  F15D1/02 ,  G05D7/01 ,  F16K47/08 ,  F16K21/00 ,  F16L55/027

    摘要： A cylinder porous cylinder, a gas flow control valve, and a mounting method for the gas flow control valve. The porous cylinder (1) includes a plurality of pipe bundles filled inside the pipe. A single flow passage is formed in each of the pipe bundles, such that a seepage passage is formed inside the pipe. The inner diameter, length and permeability of the pipe bundle are determined in advance based on a Reynolds number smaller than 2300. The porous cylinder (1) is capable of implementing a stable gas flow in a gas injection channel. The valve body (21) of the gas flow control valve (2) is provided therein with a plurality of tubular passages arranged in sequence along the horizontal direction of the valve body. The tubular passages include a pipe flow passage (24) and a plurality of seepage passages (25). The porous cylinder (1) is mounted in each of the seepage passages (25). A plurality of connection channels (221) are provided in the valve cap. One end of each of the connection channels (221) communicates with the interior of each of the tubular passages, and the other end of each of the connection channels (221) is provided respectively with a valve stem. The opening and closing of the plurality of tubular passages are controlled by the valve stem, thus regulating the output ratio of the injected gas. In addition, a mounting method for the gas flow control valve is further provided.