ELAU C600/10/11/1/00電機(jī),C600/10/11/1/00使用手冊
投用性能控制后,主風(fēng)機(jī)組靜葉由38.8度關(guān)到了28.8度,防喘閥總的輸出由有11.3%關(guān)到了1.5%,主電機(jī)功率由17398KW降到了8973KW,主風(fēng)總管流量波動(dòng)范圍在30NM3/min之內(nèi)。不僅穩(wěn)定了裝置,而其每小時(shí)節(jié)能9000KW,經(jīng)濟(jì)效益非常可觀。
9.備風(fēng)機(jī)組投用性能控制效果分析
圖9-1備風(fēng)機(jī)性能控制工藝趨勢
由圖9-1所示,各曲線含義分析如下:
綠色曲線是總管流量的設(shè)定值;
紅色曲線是總管流量的實(shí)測值;ELAU C600/10/11/1/00電機(jī)
黃色曲線是投用主風(fēng)流量性能控制標(biāo)志;
白色曲線是防喘閥的輸出值;
藍(lán)色曲線是防喘振盤旋點(diǎn);
紫色曲線是防喘振的實(shí)際工作點(diǎn);
淺藍(lán)色曲線是備風(fēng)機(jī)組靜葉輸出值;
粉色曲線是備電機(jī)功率;
可以看出,投用性能控制后,備風(fēng)機(jī)組在某一時(shí)段檢測到總管流量下降后,靜葉由51.0度開到了57.0度,主電機(jī)功率由15594KW升到了15816KW,C600/10/11/1/00使用手冊主風(fēng)總管流量波動(dòng)范圍在30NM3/min之內(nèi)。后來工藝人員發(fā)現(xiàn)是因往裝置的安全閥故障自動(dòng)打開了,如果當(dāng)時(shí)沒有投用性能控制,此事將會(huì)造成主風(fēng)低流量,切斷進(jìn)料。此項(xiàng)功能挽救了裝置非計(jì)劃停車,創(chuàng)造了非常可觀的經(jīng)濟(jì)效益。
10.結(jié)束語
與傳統(tǒng)催化裂化的操作方式由操作人員手動(dòng)操作完成主備風(fēng)機(jī)的切換,自動(dòng)切換控制更加平穩(wěn)可靠、高效安全、人性化,同時(shí)杜絕了誤操作的可能,從而保證了工藝系統(tǒng)平穩(wěn)操作的要求。 and adaptive PID, all I know is to use the corresponding control algorithm to adjust the PID parameters in time. Let's take an example. The traditional PID algorithm formula is: ⊿ U (n) = KP [e (n) - E (n-1)] + KIE (n) + KD [e (n) - 2e (n-1) + e (n-2)] U (n) = ⊿ U (n) + U (n-1) e (n), e (n-1), e (n-2) is the deviation between the three set values in history and the process value. This is an incremental PID formula (if anyone doesn't understand what formula increment is, hehe, it may be mentioned later that my writing level is limited and I can't organize the content. Besides, where I think and write, hehe, see the cold). The so-called new PID controller is to use those advanced control laws to properly adjust KP, Ki and Ke according to the difference of E (n). As for how to adjust, hehe, it's too wordy, and it's not what this content should introduce. (the key is that I don't know, hehe, laugh). The great Xia who needs these functions should be my predecessors.