The invention relates to the technical field of ships, and discloses a tool for replacing a sea chest valve underwater and a using method of the tool. The tool for underwater replacement of the sea chest valve comprises a plugging cover, a mounting piece, a fastening piece, a sealing cover and a first sealing ring. The plugging cover is used for plugging a grating or a quicksand hole of the sea chest, and an installation hole is formed in the plugging cover. And the first end of the mounting piece can be hung and buckled with a grille bar of the grille or a seabed door outer plate at the quicksand hole, the second end of the mounting piece can penetrate through the mounting hole, and the second end of the mounting piece can be fixed in the mounting hole in a screw-thread fit manner with the fastener. The sealing cover comprises a cover body part and a fastening part which are connected with each other, the cover body part can cover the second end of the mounting piece, and the fastening part can be in threaded connection with the mounting piece. And the first sealing ring is clamped between the fastening part and the fastener. According to the tool for underwater replacement of thesea chest valve, the sea chest valve can be replaced without docking of a ship, the replacement period is shortened, the replacement cost is reduced, and in addition, the water seepage phenomenon canbe effectively avoided.

    本发明涉及船舶技术领域,公开了一种水下更换海底门阀件的工装及其使用方法。水下更换海底门阀件的工装包括封堵罩、安装件、紧固件、密封罩和第一密封圈。封堵罩用于封堵海底门的格栅或流沙孔,封堵罩上设置有安装孔。安装件的第一端能够与格栅的格栅条或流沙孔处的海底门外板挂扣,安装件的第二端能够穿过安装孔,安装件的第二端能够与紧固件螺纹配合固定在安装孔中。密封罩包括相连接的罩体部和紧固部,罩体部能够罩设在安装件的第二端上,紧固部能够与安装件螺纹连接。第一密封圈夹设在紧固部与紧固件之间。本发明提供的水下更换海底门阀件的工装,实现了船舶不进坞更换海底门阀件,节约了更换周期和费用,另外能够有效避免渗水现象发生。


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    Title :

    Tool for replacing sea chest valve underwater and using method of tool


    Additional title:

    一种水下更换海底门阀件的工装及其使用方法


    Contributors:
    PENG XIUQING (author) / JIANG YONGGANG (author) / ZHONG MEIDA (author) / HUANG QIUYUN (author) / YAO TANGYI (author)

    Publication date :

    2021-01-01


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B63C LAUNCHING, HAULING-OUT, OR DRY-DOCKING OF VESSELS , Zuwasserlassen, Trockenstellen, Docken oder Bergen von Schiffen / B63B Schiffe oder sonstige Wasserfahrzeuge , SHIPS OR OTHER WATERBORNE VESSELS



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