“Nan Tianlong” successfully completed the unloading arm loading and unloading project

“Nan Tianlong” successfully completed the unloading arm loading and unloading project
January 4, 2015, "South Dragon" skilful lifting skills, efficient work efficiency of the successful completion of the unloading arm Guangdong Dapeng LNG Company of installation and disassembly back to work.
December 2014 30 noon, "South Dragon" arrived at the construction site, and launched a series of preparatory work before lifting immediately. On the 31st, the flatbed truck transported the L-1102 unloading arm that had been repaired and repaired from the repair shop to the work ship dock. The “Nantianlong” carried out a series of lifting and deck fixing work in a smooth and orderly manner and then moved to the LNG terminal.
       Due to the impact of the on-site sea conditions, the reloading work was once suspended. On January 3, “Nan Tianlong” seized the weather window and successfully completed the loading of the L-1102 unloading arm, and removed the L-1101C discharge arm that needed maintenance from the base. The flatbed is reinforced and transported to the repair shop. All reloading/removal work was completed on the afternoon of January 4.
       The loading and unloading operation of the unloading arm is carried out in close cooperation with the on-site construction personnel. Although the working space is small and the installation accuracy is high, there is no slight collision in the whole installation process.

One is a special type of ship. It has a flat, square head, side shoots, shallow draft, the ratio of length to width, has the characteristics of wide, large, flat, shallow. This type of ship is not afraid of the beach, can sail in the sea of sandy seabed, but also in the rivers and lakes in the navigation. Sand flat bottom can sit beach, not afraid to run aground. In the wind and waves are also safe. In particular, the wind direction is not at the same time, due to the shallow draft shallow, by the impact of the tide is relatively small, relatively safe

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Sand Barge

Two is a superior performance in offshore navigation. How many ship mast sail can sail upwind, can sail in the ocean. Sand mast tall, high mast sail high, for the wind, and it has a shallow draft, low resistance, so fast sea voyage. Sand can sail with the wind, the wind can also sail upwind, even top water can sail, good seaworthiness. Ship navigation performance, seven wind sail smoothly, while the waves, so the sand can sail.

Three is a heavy load. General recorded that sand load is four thousand to six thousand stone stone (about five hundred to eight hundred tons). Also said that the sand carrying capacity is 2000 stone to 3000 stone (about 250 tons to 400 tons), the Yuan Dynasty ocean ship 9000 stone (1200 tons and above).

The disadvantage of sand

1, the shortcomings of sand is affected by water area. Due to the bow for the tablet, slower. Therefore, on both sides of the boat in the middle of the added water board [waist camel], on both sides of the bow adding Mizuki stems, in the stern of the hanging basket of peace [in case of large waves fashion rocks the boat], greatly enhances the stability. Especially after installed flashings, ability makes the wind sail already have driving is enhanced. This ship can still drive safely in the case of wind seven.

2, sand waves ability, inland water transport has a large transport capacity, can adapt to the characteristics of river shore shoal. But it reflects great weakness in offshore Hainan airlines. During the Yuan Dynasty, the government from the Yangtze River mobilized consisting of more than 900 boats Barge fleet against the Japanese, in western Japan Sea typhoon after almost annihilated. Since then, the Japanese call typhoon "kamikaze", is from here. Therefore, it is generally used in inland waterway transport and in the special seasons for the use of transport supply ships.

Because of the sand has the characteristics, so it in inland civil transport use is very extensive, along the coast have traces of sand. During the western Zheng He, Zheng He of the fleet of treasure ships have sand ship. At the same time, Zheng He's treasure ship is in the area of Nanjing treasure shipyard, built there is mostly sand ship ship.

Sand in China lasted for a long time in history, Emperor Daoguang's reign of the Qing Dynasty, Shanghai has sand 5000 ships, it is estimated that when the sand in the total number of more than million vessels. Sand occupies an important position in the history of China shipping.


Sand Barge

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