LNG ship provided with filling pipes

Abstract

The present invention provides an LNG ship provided with filling pipes, and belongs to the technical field of ship machinery. The LNG ship provided with the filling pipes comprises a hull and filling pipe components. Liquid storage chambers are arranged in the hull, the filling pipe components comprise the filling pipes, rotating pipe joints and connecting pipes provided with butt joint ports, the filling pipes communicate with the liquid storage chambers through liquid inlet pipes, the connecting pipes are fixedly connected with the rotating pipe joints, the rotating pipe joints are rotationally connected with the filling pipes, and the rotating pipe joints are driven by a driving device, to drive the connecting pipes to rotate around the axial leads of the rotating pipe joints. When the LNG ship is filled, the driving device drives the rotating pipe joints to rotate, and further to drive horizontal pipes and the joints of the horizontal pipes to rotate to be below the water surface, so that the temperature of the joints is not too low, the pipe bodies can be effectively prevented from being frozen, the efficiency of filling is improved, bubbles come out when the joints leak, and thus the leakage of the joints can be found out in time.

Description

technical field [0001] The invention belongs to the technical field of ship machinery and relates to an LNG ship with a filling pipe. Background technique [0002] The power boat is still under development, and its prospect is very good. Among them, the LNG carrier is an internationally recognized "three high" product. The LNG carrier is a special ship for transporting liquefied gas at a low temperature of minus 163 degrees Celsius. It is a "three high" product with high technology, high difficulty and high added value. "Sea Super Refrigerator". The storage tank of the LNG carrier is a special structure independent of the hull. [0003] When the existing LNG ship is filling and unloading, it needs to be connected with the land tank or other LNG ships through pipelines to realize the transfer of LNG. Due to the extremely low temperature of LNG, a layer of frost will form on the outer wall of the pipeline when LNG flows through the pipeline. Such a low temperature has a gre...

AI Technical Summary

Problems solved by technology

Due to the extremely low temperature of LNG, a layer of frost will form on the outer wall of the pipeline when LNG flows through the pipeline. Such a low temperature has a great impact on the life of the pipeline, especially when the ship is shaking, it is very easy to frostbite the hull of the pipeline Or the damage of the pipeline, the method of spraying water curtain to the hull is usually used to cool down, but the leakage of the pipeline connection is not easy to be detected

In addition, each filling connection and disconnection to complete the filling process must go through tedious preparations and operations, such as instrument inspection, pressure adjustment, pipeline connection, etc., all require strict operating procedures and cost A lot of time, and the extension of the docking time will greatly increase the transportation cost of the ship

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