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Coal fired generating set

Mechanical equipment that converts chemical energy of fossil fuels such as coal into electrical energy
Coal fired power generation units are mechanical equipment that convert chemical energy of fossil fuels such as coal into electrical energy.
A million kilowatt ultra supercritical secondary reheat coal-fired power generation unit independently designed and manufactured by China was built in Taizhou, Jiangsu Province. This is the first time in the world that the secondary reheating technology is applied to the megawatt ultra Supercritical coal-fired generating set It is also a major breakthrough for China's thermal power technology to completely get rid of the shackles of foreign intellectual property rights in terms of high parameter and large capacity units. The project is composed of China Guodian Corporation China Power Engineering Consulting Group and Shanghai Electric Power Station Group jointly tackle key problems, and the unit desulfurization and denitrification devices are put into operation synchronously. With advanced and stable unit parameters, the unit efficiency is the world's leading, and the environmental protection emission indicators are the best, which is an important measure to promote China's energy technology revolution. [1]
Chinese name
Coal fired generating set
Features
Chemical energy of fossil fuels is converted into electrical energy
Type
electricity generation
Structure
Combustion system, steam water system

catalog

principle

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Working principle of coal-fired generating set
Working principle of coal-fired power generation unit: it is the heat energy generated by coal combustion Power generating device (Power plant boilers, steam turbines, generators and their auxiliary devices, etc.) into electrical energy. Coal fired power generation has a long history and is also an important type.

structure

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Coal fired generating units are mainly composed of combustion system (with boiler as the core), steam water system (mainly composed of various pumps Feedwater heater , condenser, pipeline, water wall, etc.), electrical system (with steam turbine generator main transformer And control system. The first two generate high-temperature and high-pressure steam; The electrical system realizes the transformation from thermal energy, mechanical energy to electrical energy; The control system ensures the safe, reasonable and economic operation of each system. As a traditional power generation method, coal-fired power generation also has its drawbacks and shortcomings. For example, the direct combustion of coal releases SO2, NOX and other acidic gases, which increase the amount of acid rain in China. Dust pollution has a negative impact on people's lives and plant growth. Therefore, it is necessary to constantly improve the schedule of coal-fired power generation, use various technologies to improve power generation efficiency and reduce environmental pollution, such as desulfurization and dedusting of smoke or burning natural gas, and air cooling of gas turbine.