800MW机组节能减排优化升级项目总体优化设计

Optimization Design of Energy Saving and Emission Reduction Optimization and Upgrading Project for 800 MW Unit

为了提高机组运行经济性、安全性、稳定性和满足国家环保要求,积极响应国家鼓励实施在役煤电机组综合升级改造,绥中发电有限责任公司对一期2×800 MW俄制机组实施节能减排优化升级改造。整体改造共包括13个子项目,总投资约12亿元,机炉电热全面覆盖,机组安全、经济、环保达到了最优组合。项目投产后,机组增容10%达到880 MW,供电煤耗下降近40克/千瓦时,预计每年可节约标煤32.8万吨,厂用电率下降超过2个百分点,烟尘、二氧化硫、氮氧化物排放指标均优于天然气发电排放标准限值,实现了灰渣综合利用、控制系统达到百万机组先进水平等优异指标。

In order to improve unit operating economy, security, stability and meet state environmental requirements, respond positively encouraged by the state to implement a comprehensive upgrading of coal units served Suizhong Power Co. Ltd. For a Russian unit of 2x800 MW implementation of energy saving optimization upgrade. Overall transformation includes a total of 13 sub-projects with a total investment of about 1.2 billion yuan, boiler-turbine electric comprehensive coverage, safety, economic, environmental reached the optimal combination. After the project is put into operation, the unit capacity increase 10 percent to reach 880 MW, coal-powered down nearly 40 g /kWh, with an estimated annual savings of 328,000 tons of standard coal, power consumption rate dropped more than 2 percentage points, soot, sulfur dioxide, nitrogen oxides emission indicators are better than natural gas emission standard limits to achieve the ash utilization, control systems and other advanced level reached one million units outstanding indicators.