The invention discloses a device and a method for preventing lubricating oil leakage of a ship stern tube at a wharf. A gravity oil tank is arranged above the stern tube, and an oil inlet pipe of the gravity oil tank is connected to a joint of a second lubricating oil pipe and a third lubricating oil pipe, so that when a ship berths at the wharf, after a lubricating oil pump and compressed air are closed, the lubricating oil is discharged from the ship stern tube; lubricating oil in the gravity oil tank can enter the stern tube and a cavity III between the sealing rings III and IV through a third lubricating oil route and a fourth lubricating oil route, static pressure P oil is formed in the cavity III, the pressure of the P oil is always larger than the pressure of P water, the sealing rings III and IV are always in a sealing state, the lubricating oil cannot pass through the sealing rings III or IV, and therefore the sealing effect of the stern tube is improved. Therefore, the purpose that the lubricating oil does not leak is achieved, and the lubricating oil in the stern tube does not leak into seawater.

    本发明公开了一种防止船舶艉管在码头泄漏滑油的装置及方法,本发明通过在艉管的上方设置重力油柜,并使重力油柜的进油管连接至第二滑油管与第三滑油管的连接处,这样当船舶停靠码头时关闭滑油泵和压缩空气后,重力油柜内的滑油可经第三滑油路线和第四滑油路线进入艉管和艉管后密封Ⅲ号与Ⅳ号密封环之间的Ⅲ腔室,使Ⅲ腔室内形成静压P油,由于P油压力始终大于P水压力,Ⅲ号与Ⅳ号密封环始终形成密封状态,滑油不会通过Ⅲ号或Ⅳ号密封环,从而实现滑油不泄漏的目的,艉管内的滑油不会泄露到海水中。


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    Title :

    Device and method for preventing ship stern tube from leaking lubricating oil at wharf


    Additional title:

    一种防止船舶艉管在码头泄漏滑油的装置及方法


    Contributors:
    XUE CHANGQI (author) / MA NING (author) / SHI JIAWEN (author) / HAN BAOCHEN (author) / GUO FENGXU (author) / LIU SONGLING (author)

    Publication date :

    2023-08-15


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    F16J Kolben , PISTONS / B63H Schiffsantrieb oder Steuerung der Schiffe , MARINE PROPULSION OR STEERING



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