我們知道，臺車退火爐脈沖燃燒控制的主要優點是：①傳熱效率高，能耗低。②高速脈沖燃燒器燃燒產生的氣體速度可達100ms以上，爐內氣體高速攪拌，實現爐內溫度均勻。③燃燒氣氛的自動正確控制可以在不調整保護裝置的情況下實現。④燃燒器負荷調節比可以提高。⑤該系統簡單牢靠，成本低。⑥減少氮氧化物的生成。

　　某(mou)鋼鐵(tie)公(gong)司所用三臺臺車退火(huo)(huo)爐使用了(le)六(liu)臺bic140高(gao)速脈(mo)沖(chong)燃(ran)(ran)(ran)(ran)(ran)燒(shao)(shao)(shao)器(qi)。每(mei)個燃(ran)(ran)(ran)(ran)(ran)燒(shao)(shao)(shao)器(qi)配備一(yi)個ifs244燃(ran)(ran)(ran)(ran)(ran)燒(shao)(shao)(shao)器(qi)控(kong)(kong)制器(qi)，可(ke)(ke)用于(yu)燃(ran)(ran)(ran)(ran)(ran)燒(shao)(shao)(shao)器(qi)同(tong)間(jian)(jian)隙周期(qi)燃(ran)(ran)(ran)(ran)(ran)燒(shao)(shao)(shao)的(de)(de)(de)(de)自動(dong)點火(huo)(huo)和(he)火(huo)(huo)焰監測(ce)，實(shi)現(xian)火(huo)(huo)焰故障熄(xi)滅后(hou)重(zhong)新點火(huo)(huo)或(huo)平靜(jing)報警兩(liang)種(zhong)(zhong)模(mo)式(shi)(shi)。脈(mo)沖(chong)烷(wan)(wan)烴燃(ran)(ran)(ran)(ran)(ran)燒(shao)(shao)(shao)系統通過改(gai)變(bian)每(mei)個噴(pen)(pen)嘴的(de)(de)(de)(de)燃(ran)(ran)(ran)(ran)(ran)燒(shao)(shao)(shao)周期(qi)和(he)燃(ran)(ran)(ran)(ran)(ran)燒(shao)(shao)(shao)時(shi)(shi)間(jian)(jian)來(lai)實(shi)現(xian)工(gong)藝加(jia)熱(re)的(de)(de)(de)(de)要(yao)求(qiu)。脈(mo)沖(chong)燃(ran)(ran)(ran)(ran)(ran)燒(shao)(shao)(shao)將草魚的(de)(de)(de)(de)連(lian)續調(diao)節模(mo)式(shi)(shi)改(gai)為開(kai)關(guan)調(diao)節，即噴(pen)(pen)嘴只有(you)(you)兩(liang)種(zhong)(zhong)工(gong)作(zuo)狀態(tai)：①D在(zai)預先選(xuan)擇的(de)(de)(de)(de)越佳的(de)(de)(de)(de)燃(ran)(ran)(ran)(ran)(ran)燒(shao)(shao)(shao)狀態(tai)下工(gong)作(zuo)——較大的(de)(de)(de)(de)計算(suan)熱(re)負荷(he)。②燃(ran)(ran)(ran)(ran)(ran)燒(shao)(shao)(shao)器(qi)用于(yu)維持(chi)未熄(xi)滅的(de)(de)(de)(de)小(xiao)火(huo)(huo)。當需(xu)要(yao)升(sheng)(sheng)溫時(shi)(shi)，燃(ran)(ran)(ran)(ran)(ran)燒(shao)(shao)(shao)器(qi)燃(ran)(ran)(ran)(ran)(ran)燒(shao)(shao)(shao)時(shi)(shi)間(jian)(jian)增(zeng)加(jia)，中斷時(shi)(shi)間(jian)(jian)減(jian)少(shao)；當需(xu)要(yao)保溫或(huo)冷卻(que)時(shi)(shi)，噴(pen)(pen)嘴的(de)(de)(de)(de)燃(ran)(ran)(ran)(ran)(ran)燒(shao)(shao)(shao)時(shi)(shi)間(jian)(jian)縮短，中斷時(shi)(shi)間(jian)(jian)增(zeng)加(jia)。脈(mo)沖(chong)烷(wan)(wan)烴燃(ran)(ran)(ran)(ran)(ran)燒(shao)(shao)(shao)控(kong)(kong)制系統中使用的(de)(de)(de)(de)mpt-700脈(mo)沖(chong)燃(ran)(ran)(ran)(ran)(ran)燒(shao)(shao)(shao)控(kong)(kong)制器(qi)有(you)(you)八(ba)種(zhong)(zhong)工(gong)作(zuo)模(mo)式(shi)(shi)。例如(ru)，在(zai)加(jia)熱(re)和(he)冷卻(que)模(mo)式(shi)(shi)下，通過控(kong)(kong)制空氣電動(dong)閥(fa)可(ke)(ke)以(yi)(yi)獲得較高(gao)的(de)(de)(de)(de)溫升(sheng)(sheng)精度(du)和(he)可(ke)(ke)控(kong)(kong)的(de)(de)(de)(de)冷卻(que)過程，燃(ran)(ran)(ran)(ran)(ran)燒(shao)(shao)(shao)器(qi)也可(ke)(ke)以(yi)(yi)在(zai)開(kai)/關(guan)或(huo)大小(xiao)火(huo)(huo)模(mo)式(shi)(shi)下實(shi)現(xian)越佳的(de)(de)(de)(de)烷(wan)(wan)烴燃(ran)(ran)(ran)(ran)(ran)燒(shao)(shao)(shao)狀態(tai)，以(yi)(yi)減(jian)少(shao)污染物排(pai)放(fang)。Mpt-700可(ke)(ke)輸(shu)出(chu)8組脈(mo)沖(chong)信(xin)號，用于(yu)一(yi)級或(huo)兩(liang)級自然燃(ran)(ran)(ran)(ran)(ran)燒(shao)(shao)(shao)控(kong)(kong)制。每(mei)組脈(mo)沖(chong)信(xin)號可(ke)(ke)以(yi)(yi)控(kong)(kong)制一(yi)個或(huo)多個燃(ran)(ran)(ran)(ran)(ran)燒(shao)(shao)(shao)器(qi)。Mpt-700將溫度(du)控(kong)(kong)制器(qi)輸(shu)出(chu)的(de)(de)(de)(de)0-20mA信(xin)號轉換為脈(mo)沖(chong)信(xin)號傳輸(shu)噴(pen)(pen)嘴控(kong)(kong)制器(qi)。如(ru)果(guo)溫度(du)控(kong)(kong)制器(qi)只要(yao)509%（1mA熱(re)負荷(he)），則燃(ran)(ran)(ran)(ran)(ran)燒(shao)(shao)(shao)器(qi)的(de)(de)(de)(de)開(kai)啟和(he)關(guan)閉時(shi)(shi)間(jian)(jian)在(zai)一(yi)個脈(mo)沖(chong)周期(qi)內是(shi)(shi)相同(tong)的(de)(de)(de)(de)；如(ru)果(guo)需(xu)要(yao)25%的(de)(de)(de)(de)熱(re)負荷(he)，則燃(ran)(ran)(ran)(ran)(ran)燒(shao)(shao)(shao)器(qi)的(de)(de)(de)(de)關(guan)閉時(shi)(shi)間(jian)(jian)是(shi)(shi)開(kai)啟時(shi)(shi)間(jian)(jian)的(de)(de)(de)(de)3倍。

　　隨著鋼(gang)鐵(tie)行業競爭的(de)日益(yi)激烈，臺車(che)退火爐脈沖(chong)燃燒控制技術將在提高產品質(zhi)量(liang)、減少自燃、減少污染方面發(fa)揮重要(yao)作用。