宁夏电力
寧夏電力
저하전력
Ningxia Electric Power
2015年
5期
63-65
,共3页
自动发电控制%一次风%风煤比%磨煤机
自動髮電控製%一次風%風煤比%磨煤機
자동발전공제%일차풍%풍매비%마매궤
AGC (Automatic Generator Control)%primary air%the ratio of the air and coal%pulverizer
针对某600 MW机组自动发电控制（Automatic Generator Control，AGC）运行异常，导致给煤量、给水流量和主汽压力大幅度波动，影响锅炉的安全稳定运行的问题，从磨煤机进出口差压、热风门开度、一次风压值及一次风压调节等方面进行了分析，提出处理措施。分析结果表明：机组AGC控制异常的主要原因是一次风量偏小、磨煤机调节能力差所导致的风煤比偏离了设计值，引发锅炉燃烧不稳定。
針對某600 MW機組自動髮電控製（Automatic Generator Control，AGC）運行異常，導緻給煤量、給水流量和主汽壓力大幅度波動，影響鍋爐的安全穩定運行的問題，從磨煤機進齣口差壓、熱風門開度、一次風壓值及一次風壓調節等方麵進行瞭分析，提齣處理措施。分析結果錶明：機組AGC控製異常的主要原因是一次風量偏小、磨煤機調節能力差所導緻的風煤比偏離瞭設計值，引髮鍋爐燃燒不穩定。
침대모600 MW궤조자동발전공제（Automatic Generator Control，AGC）운행이상，도치급매량、급수류량화주기압력대폭도파동，영향과로적안전은정운행적문제，종마매궤진출구차압、열풍문개도、일차풍압치급일차풍압조절등방면진행료분석，제출처리조시。분석결과표명：궤조AGC공제이상적주요원인시일차풍량편소、마매궤조절능력차소도치적풍매비편리료설계치，인발과로연소불은정。
Aiming at the problem of the Automatic Generator Control (AGC)running abnormality for 600 MW unit,leads to the operating parameters wide fluctuations such as the coal feed rate, the water feed rate and the main steam pressure,influences the safe and steady operation of the boiler,analyzes the inlet and outlet pressure differential of the pulverizer,the hot air port opening degree,the primary air pressure value and the primary air pressure regulation,etc.,puts forward treatment measures. The analysis result shows that the main cause AGC abnormality of the unit is that small of primary air volume and poor of pulverizer adjustment ability leads coal-air ratio to deviate the design value,and results in the boiler combustion unsteadiness.
