Environmental equipment and power generation system using same

Environmental equipment connected to a boiler of a power generation system, comprising:

• an electric generator which produces electricity based on steam generated in the boiler;
• a first denitrifier which receives exhaust gas from the boiler and denitrifies the exhaust gas by spraying a reductant to the exhaust gas;
• a low low-temperature electric precipitator which collects dust from the exhaust gas provided from the first denitrifier;
• a second denitrifier which secondarily denitrifies the exhaust gas by spraying the reductant to the exhaust gas provided from the low low-temperature electric precipitator and provides the exhaust gas toward a chimney;
• a first heat exchanger which is provided between the first denitrifier and the low low-temperature electric precipitator and cools the exhaust gas provided to the low low- temperature electric precipitator;
• and
• a second heat exchanger which is connected to the first heat exchanger between the low low-temperature electric precipitator and the second denitrifier and heats the exhaust gas provided to the second denitrifier.

A power generation system comprising:

• a boiler;
• an electric generator which produces electricity based on steam generated in the boiler;
• a low low-temperature electric precipitator which receives exhaust gas from the boiler and collects dust from the exhaust gas;
• a denitrifier which denitrifies the exhaust gas by spraying the reductant to the exhaust gas provided from the low low-temperature electric precipitator and provides the exhaust gas toward a chimney;
• a first heat exchanger which is provided between the electric generator and the low low-temperature electric precipitator and cools the exhaust gas provided to the low low- temperature electric precipitator;
• and
• a second heat exchanger which is connected to the first heat exchanger between the low low-temperature electric precipitator and the denitrifier and heats the exhaust gas provided to the denitrifier.