Liaoning No. - China's first conventional power aircraft carrier. It is called the conventional power carrier because her power core is four Ukrainian TB-12 steam turbines. These steam turbines do not directly consume any energy. They only pass through the transmission under the action of high temperature and high pressure water vapor. Driving the propeller blades to rotate to generate propulsion, the nuclear-powered aircraft carrier is also the same working principle. The core difference between conventional power carriers and nuclear-powered aircraft carriers is that they have different sources of water vapor.
　　
The water vapor of a conventional power carrier is produced by a boiler, and the water vapor of a nuclear power carrier is produced by a nuclear reactor.
The Liaoning aircraft carrier is equipped with a total of eight boilers, which use heavy oil as fuel to heat the water to produce high-temperature and high-pressure water vapor.
What is heavy oil? Heavy oil is the remaining heavy oil after crude oil is extracted from gasoline and diesel. It is characterized by large molecular weight and high viscosity. The specific gravity of heavy oil is generally between 0.82 and 0.95, and the calorific value is between 10,000 and 11,000 kcal/kg. Its composition is mainly hydrocarbons, and it also contains some sulfur and trace amounts of inorganic compounds. The main reason why Liaoning ships use heavy oil is that it is cheap. The fuel oil used in Liaoning ships is 380. The current market price is around 2,000 yuan/ton, while the diesel price in the same period is about 7,000 yuan/ton.
According to the data, the Liaoning ship can carry about 6000-8000 tons of fuel, which does not include the oil for carrier aircraft. In this way, it takes between 12 million and 16 million yuan for the Liaoning ship to fill up with one oil, and it costs more with the carrier-based machine oil.
It can be seen from the calculated data that the maintenance of the aircraft carrier is a very burning thing, which is one of the main reasons why our country did not build an aircraft carrier in the early days of the founding of the country. Now the launching of the second aircraft carrier also proves that China's overall strength is strong. In the long run, building a nuclear-powered aircraft carrier is the ultimate goal we must have, because its range is not limited and nuclear energy is inexhaustible. However, the nuclear-powered aircraft carrier itself is extremely expensive. The cost of the Nimitz class aircraft carrier in the United States is 5 billion U.S. dollars. The cost of the Soviet Kuznetsov aircraft carrier is 3 billion U.S. dollars. Therefore, this requires more support from the national power. I hope that our country will The nuclear-powered aircraft carrier can usher in the day when it will be launched soon.
Shaanxi Xinlong Metal Electro-mechanical Co., Ltd. , https://www.cnxlalloyproduct.com