The invention relates to the technical field of sealing components, aims to solve the problems that in the prior art, a lip edge of a sealing ring is twisted or damaged, and an E-shaped sealing ring is prone to leakage, and provides an active sealing structure of the E-shaped sealing ring and a sealing method of the active sealing structure. The E-shaped sealing ring is provided with a first lip sealing face, a second lip sealing face, a first annular gap, a second annular gap and a base body which are parallel to one another. The inner diameter of the base body is smaller than the inner diameter of the first lip sealing face and the inner diameter of the second lip sealing face. The first ventilation groove, the groove and the second ventilation groove in the radial direction of the base body are communicated with the first annular gap and the second annular gap, after the flange connector is connected and assembled, the first annular gap and the second annular gap are reduced to zero, but the first ventilation groove and the second ventilation groove exist all the time. And high-pressure sealing gas can always enter the ventilation groove to form back pressure on the first lip sealing surface and the second lip sealing surface. The E-shaped sealing ring has the beneficial effects that the lip edge of the E-shaped sealing ring is not easy to distort or damage, and the normal active sealing function of the E-shaped sealing ring is ensured.

    本发明涉及密封构件技术领域,旨在解决现有技术中密封圈唇边被扭曲或损伤,E形密封圈易泄露的问题,提供一种E形密封圈主动密封结构及其密封方法,E形密封圈有相互平行的第一唇边密封面、第二唇边密封面、第一环形缝隙、第二环形缝隙和基体;基体内径小于第一唇边密封面和第二唇边密封面内径;基体径向上的第一通气沟、凹槽和第二通气沟与第一环形缝隙和第二环形缝隙贯通,法兰接头连接组装后,第一环形缝隙和第二环形缝隙减为零,但第一通气沟和第二通气沟始终存在,高压密封气体始终能进入通气沟对第一唇边密封面和第二唇边密封面形成背压力。本发明的有益效果是E形密封圈的唇边不易扭曲或损伤,确保了E形密封圈主动密封功能正常起作用。


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    Title :

    Active sealing structure of E-shaped sealing ring and sealing method of active sealing structure


    Additional title:

    一种E形密封圈主动密封结构及其密封方法


    Contributors:
    XIAO BALI (author) / LIU YI (author) / YANG JIANPING (author) / HAN JINGANG (author) / SONG ZHIYONG (author) / LI MOUKUI (author) / SHEN YANFEI (author) / OU DONGFANG (author) / SHEN JIANHONG (author) / LIU BAOHUA (author)

    Publication date :

    2022-09-16


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    F16L PIPES , Rohre / B60T Bremsanlagen für Fahrzeuge oder Teile davon , VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF / F16J Kolben , PISTONS



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