Small LNG Ship Into The Yangtze River Downstream Safety Evaluation

Natural gas as the three largest energy in the most clean energy, in energy efficiency, environmental sustainability, has multiple advantages. Along the Yangtze River coastal cities due to the price and geographical conditions, and other special reasons, so that some areas still belong to the natural gas pipeline transportation of the blind area, and even many regions of seasonal "gas shortage".LNG transport mainly road transport, rail transport and ship transportation, the Yangtze River city is currently mainly used in road transport. The LNG shipping way with respect to other means of transport, it has a large radius, large volume, low cost, energy consumption, etc., it is the most ideal mode of transport. However, due to the uncertainty of LNG cargo special risks and Yangtze sailing environment, LNG ship is still prohibited from entering the Yangtze River, the city sits along the Yangtze River Yangtze River this "golden waterway", but was unable to take advantage of the natural advantages of transporting natural gas, which greatly It restricts the rapid economic development of the region along the Yangtze River.In this paper, by investigating the Yangtze River waterway navigable natural conditions and situation, and then analyze and summarize the impact of the LNG ship navigation safety factors into the Yangtze River in order to determine the evaluation index system of the Yangtze River navigation safety, the use of knowledge of fuzzy mathematics, the establishment of a Fuzzy comprehensive evaluation model for small LNG vessel into the Yangtze River downstream of the safety evaluation. And learn the current methods and measures the safety of ships sailing the Yangtze dangerous goods, put forward their own ideas and suggestions for the future LNG ship has a certain reference value in the safe operation of the Yangtze River.