The invention discloses an LNG ship liquid cargo pipeline water hammer protection system. The system comprises a liquid cargo conveying module, a measuring module and a monitoring module. The liquid cargo conveying module comprises an LNG liquid cargo tank, a liquid cargo pump, a multifunctional water pump control valve, a pressure regulating tower, an emergency cut-off valve and a quick connector, and the measuring module comprises a data acquisition instrument, a computer, a first pressure sensor, a second pressure sensor, a third pressure sensor, a first flow meter, a second flow meter and a third flow meter. The monitoring module comprises a controller and a frequency converter, the controller controls the liquid cargo pump by adjusting the output frequency of the frequency converter, and the controller is used for controlling opening and closing of a valve on a liquid cargo pipeline. The multifunctional water pump control valve and the pressure regulating tower are arranged on the liquid cargo pipeline to prevent the water hammer of the liquid cargo pipeline, meanwhile, the specific position of the water hammer can be rapidly calculated through the arrangement of the measuring module and the monitoring module, and the water hammer treatment efficiency of the liquid cargo system is improved.

    本发明公开了一种LNG船液货管道水锤防护系统,该系统包括液货输送模块、测量模块和监控模块;所述液货输送模块包括LNG液货舱、液货泵、多功能水泵控制阀、调压塔、应急切断阀和快速接头,所述测量模块包括数据采集仪、计算机、第一压力传感器、第二压力传感器、第三压力传感器、第一流量计、第二流量计和第三流量计,所述监控模块包括控制器和变频器,所述控制器通过调节变频器的输出频率实现对液货泵的控制,所述控制器用于控制液货管道上的阀门开启与关闭。本发明通过在液货管道上设置多功能水泵控制阀和调压塔预防液货管道的水锤发生,同时通过测量模块和监控模块的设置能快速计算出发生水锤的具体位置,提高了液货系统的处理水锤的效率。


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    Titel :

    LNG ship liquid cargo pipeline water hammer protection system and method


    Weitere Titelangaben:

    一种LNG船液货管道水锤防护系统及方法


    Beteiligte:
    LIU LIXIA (Autor:in) / LIU TAO (Autor:in)

    Erscheinungsdatum :

    2023-07-28


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Chinesisch


    Klassifikation :

    IPC:    F17D Rohrleitungssysteme , PIPE-LINE SYSTEMS / B63B Schiffe oder sonstige Wasserfahrzeuge , SHIPS OR OTHER WATERBORNE VESSELS / F16L PIPES , Rohre



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