The discipline of power plant chemistry is a branch of applied chemistry. Its main research subjects are chemical phenomena as well as the analysis and treatment of chemical media in the energy production process. This ensures the normal chemical working conditions of power generation and power supply equipment, and ensures the safe and economical operation of power generation and power supply equipment from a chemical point of view. In a thermal power plant, the boiler converts the chemical energy of coal into the potential energy of water vapor. High temperature and high pressure water vapor rotates the steam turbine at high speed to generate mechanical energy, which drives the generator. to turn. The generator coil cuts the magnetic lines of force to generate electrical energy. A hydroelectric plant uses energykinetics of water flow to directly drive a turbine to drive a generator. The electrical energy generated by the plant is then transported to users through transformation and distribution. In the process of electricity production and supply, many chemical media are used, accompanied by complex chemical phenomena, which play an important role in production equipment and processes. The main chemical fluids are: working fluid (water, fuel, steam), cooling fluid (water, mineral oil, hydrogen), insulating fluid (mineral oil, sulfur hexafluoride, air, insulating paper), lubricating fluid (mineral oil ), transmission. media (mineral oil, anti-fuel oil) and chemical agents (water treatment agent, unit dismantling maintenance agent, various chemical additives), etc.
The work content of the chemistry major includes the operation of the chemical systemand chemical technical supervision, mainly including external furnace water treatment (feed water treatment), furnace water calibration treatment, circulating cooling water treatment , the treatment of the internal cooling water of the generator. and treatment of condensation water. Supervision of water and steam systems, corrosion and protection of thermal equipment, production and supervision of hydrogen, analysis and supervision of oil quality, SF, analysis and supervision, analysis and supervision of fuels, etc. It can be seen that the work content of the power plant chemistry major covers the entire process of power generation.