The latest breakthrough in the development of China's marine diesel engine technology
It is worth mentioning that the "two aircraft (aero-engine and gas turbine) special project" has also been discussed at a high level, is preparing to implement, and some work has already started. In addition, the country is preparing to launch a special project for the development of low-speed diesel engines, which is currently being demonstrated. The creation of "China Heart" is still "on the road."
China's first self-developed first-generation small-bore marine low-speed diesel engine 6EX340EF and a 10000kW-class high-power medium-speed diesel engine 12MV390 were officially released during the 18th China International Maritime Exhibition.
Wu Qiang, general manager of China National Shipbuilding Corporation, told the China Industry News that the successful development of 6EX340EF and 12MV390 “Double Machines” filled the domestic gap and laid the foundation for the implementation of the ship power autonomy innovation project during the “13th Five-Year Plan” period. A solid technical foundation.
Foreign brands dominate the market
Marine power includes steam engines, steam turbines, diesel engines, gas turbines and nuclear power plants. Diesel engines are the main engines. At present, diesel-powered ships account for more than 95% of the world's merchant fleet. In recent years, dual-fuel engines fueled by liquefied natural gas (LNG) have also been applied to some ship types, and with the excellent green environmental performance, they are regarded by the industry as the trend of future ship power. Overall, marine power technology is mainly from traditional marine machine manufacturers such as MAN and Wärtsilä. The global marine diesel engine enterprises mainly use technology licenses for production and sales. Among them, the old European diesel engine manufacturers represented by MAN and Wärtsilä occupy the majority of the market share. In 2014, the two companies used low-speed marine diesel engines and The market share of the marine medium speed diesel engine is 99% and 77% respectively.
According to statistics, there are currently about 80% of the global marine diesel engine market in Korea, Japan and China. The fierce competition between the host manufacturers also directly affects the competition in the ship industry in the country where the manufacturer is located.
Taking the LNG carrier as an example, this high-end ship type, which is called the crown jewel of shipbuilding with luxury cruise ships, Hudong Zhonghua Shipbuilding (Group) Co., Ltd. has taken the lead in breaking foreign monopoly in 2008 and becoming an international LNG carrier. The leader in construction. However, China is still at a disadvantage in the competition of LNG carrier engines. It is understood that nearly 70% of LNG ships around the world use Wärtsilä's dual-fuel engines.
In order to seize the market opportunity, Hyundai Heavy Industries Co., Ltd. established a Wärtsilä-Modern Engine Company jointly with Wärtsilä Group to produce 50DF dual-fuel engines. “Generally speaking, one LNG ship needs four dual-fuel engines. If Chinese shipbuilding companies can only use imported products, and Korean shipbuilding companies can produce them themselves, the competition between the two sides is obviously not on the same starting line.” .
In fact, Chinese marine machinery companies have not given up their search in the field of shipbuilding. Hudong Heavy Machinery, Dalian Marine Diesel Engine Co., Ltd. and other companies have entered the ranks of the world's top ten machine companies. However, it is unavoidable that China still has many shortcomings in patent production. China has a late start in the field of ship engines, a weak foundation, lack of advanced theoretical foundation and accumulation of actual data, and is subject to various factors such as process and materials in the manufacturing process. Therefore, there are shortcomings in research and development, and key zeros. There is also a large gap in the performance of components.