United system of pulsion, power supply, steam supply of fuel gas-steam power of giant shipping

Abstract

A combined propulsion, electric power supply and steam supply system for the gas-steam power unit of huge ship is composed of air purifier, two parallel gas turbine sets, three electric generators, boiler with flue, two evaporating pipes, steam turbine, condenser, circulating water pump, steam tank, steam supplying tube, water pump, switchboard, transformer, harmonic filter, frequency variator, monitoring controller, pot-type electric propeller and secondary electric power network.

Description

technical field [0001] The invention relates to a combined propulsion, power supply and steam supply system of a giant ship, in particular to a gas-steam power combined propulsion, power supply and steam supply system of a giant ship, which belongs to the technical field of ship power. Background technique [0002] At present, the power systems of known giant ships either use nuclear reactors as the power source, which limits the average temperature of the entire cycle due to safety considerations, so that the thermal efficiency cannot be improved; or use a single steam power, which is limited by its own thermodynamic cycle properties. improved thermal efficiency. Among the existing technologies, the patent No. 00127828.2 is the "ship propulsion system" invention patent, which replaces the energy of conventional fuel with the electric energy generated by the wind generator installed on the ship. The high and large size of the propulsion engine makes it far from meeting the ...

AI Technical Summary

Problems solved by technology

[0002] At present, the power systems of known giant ships either use nuclear reactors as the power source, which limits the average temperature of the entire cycle due to safety considerations, so that the thermal efficiency cannot be improved; or use a single steam power, which is limited by its own thermodynamic cycle properties. Improved thermal efficiency

Among the existing technologies, the patent No. 00127828.2 is the "ship propulsion system" invention patent, which replaces the energy of conventional fuel with the electric energy generated by the wind generator installed on the ship. The high and large size of the propulsion engine makes it far from meeting the power requirements of giant ships; the utility model patent of "steam power ship propulsion" with the patent number of 200420105265. The coal-fired steam power boiler is still limited to the disadvantages of limited thermal efficiency of the steam power cycle, and is not suitable for use by large ships; the invention patent of "the utilization system of exhaust heat in the steam heat recovery power cycle" with the patent number of 94119624.0 is a boiler The air heat exchanger is equipped with a waste heat heat exchanger, which can partially improve the thermal efficiency of the power cycle, but cannot significantly improve the inherent performance of the power cycle. It still has problems of large volume, high fuel consumption, and heavy equipment when used in giant ships.

Li Xiaoying proposed the technology of applying gas-steam combined cycle to large-scale power plants in the article "System Configuration of Gas-Steam Combined Cycle Electromechanical System in Wangting Power Plant" ("Shanghai Electric Power" 2006 No. 2), but so far no gas-steam combined cycle has been seen. There are precedents and literature on the application of steam power cycle to ships, and the technology of gas-steam power cycle operating as a combined system of propulsion, power generation and steam supply is unheard of

Images