【正文】 d study ofplasma bustion technology in coal fired boilers with double inlet and outlettube mill and whirl burner. China Power 2003。175:271–89.。83:2103–7.[5] Li ZQ, Jing JP, Chen ZC, Ren F, Xu B, Wei HD, et al. Combustion characteristicsand NOx emissions of two kinds of swirl burners in a 300MWe wallfiredpulverizedcoal utility boiler. Combust Sci Technol 2008。參考文獻(xiàn)[1] Masaya S, Kaoru M, Koichi T, Oleg PS, Masao S, Masakazu N. Stabilization ofpulverized coal bustion by plasma assit. Thin Solid Films 2002。隨著半徑的增加，給煤率的增加量將隨之下降。（2）在有煤且沿著主空氣流動的方向，沿中心線方向燃燒溫度逐漸升高。在低溫下，燃燒器墻體是安全的。當(dāng)一次空氣溫度和速度分別為15攝氏度和23米/ 秒，油流率在100公斤/小時(shí)，燃燒器的阻力，兩個(gè)油槍在無煤和有煤狀態(tài)下運(yùn)行時(shí)壓力增加190帕，在壓力為500,600,600,550帕?xí)r，給煤率分別2,3,4,5噸/小時(shí)。在燃燒器的中心處（r2=0），當(dāng)給煤率從2噸/小時(shí)增加到5噸/小時(shí)，焦炭和C、H的釋放率從83%、81%、95%減小到75%、72%、87%。焦炭燃燒計(jì)算：ψ=[1（wk/wx）]/(1wk)這里ψ表示焦炭燃燒因素，Wk表示輸入煤灰質(zhì)量分?jǐn)?shù)，Wx表示灰炭樣品的質(zhì)量分?jǐn)?shù)。冷爐啟動和低負(fù)荷穩(wěn)燃過程被完成了。來自主油槍中的燃油通過一個(gè)高能量點(diǎn)火器點(diǎn)火，并在一個(gè)絕熱燃燒器內(nèi)燃燒，隨后，通過主油槍點(diǎn)燃來自輔助油槍的霧化油，同時(shí)形成油狀火焰。當(dāng)給煤率從2噸/小時(shí)增加到4噸/小時(shí)時(shí)，燃燒所釋放的熱量大于其所吸收的熱量。當(dāng)氣體從第一燃燒室進(jìn)入到第二燃燒室時(shí)，它們與冷空氣混合，如此，氣體的溫度逐漸的減小。因此，在輔助油槍附近的溫度要比主油槍附近的溫度高。兩支油槍在缺煤運(yùn)行操作時(shí)點(diǎn)火期間，氣體溫度在第一和第二燃燒器出口處的分布時(shí)相近的。圖3表示：氣體從燃燒器中心線處半徑分別為r1和r2時(shí)第一、第二燃燒室出口處被測量的溫度變化曲線（見圖1）。高溫氣體在此形成了。表2操作參數(shù)燃油型號0號輕柴油燃油壓力主油槍內(nèi)燃油流量35千克/小時(shí)輔助油槍內(nèi)燃油流量65千克/小時(shí)壓縮空氣壓力壓縮空氣流量一次風(fēng)速度23米/秒一次風(fēng)溫度15攝氏度給煤率25噸/小時(shí)表3試驗(yàn)用0號輕柴油的最終分析及其他特點(diǎn)碳（%）氫（%） 硫（%） 氮（%） 氧（%） 灰（%） 水分（%）總熱量值（千焦/千克）著火點(diǎn)（攝氏度） 密度（千克/立方米） 41320 62 870表4試驗(yàn)用煙煤煤粉的特性揮發(fā)分 灰 水分 固定碳總熱量值（千焦/千克） 27290 碳 氫 硫 氮 氧 3．結(jié)果和討論圖2描述了沿著燃燒器中心線所測量的氣體溫度的分布狀態(tài)。表3列出了在實(shí)驗(yàn)中所用到的輕柴油的最終分析以及其他特性。一種靜壓力的方法被用來測量直區(qū)段位置的點(diǎn)火阻力（見圖1）。對于每種物質(zhì)準(zhǔn)確測量分析包括百分之一的氧氣和百分之五的一氧化碳。被抽取的高溫氣體被收集到收集管內(nèi)，并被高壓冷卻水冷卻。煤粉在一次風(fēng)管道中被點(diǎn)燃，實(shí)驗(yàn)裝置中沒有分離進(jìn)入內(nèi)部和外部的二次風(fēng)。同時(shí)，它的操作被簡述如下：給煤機(jī)通過送風(fēng)機(jī)提供的一次風(fēng)補(bǔ)給煤粉，與此同時(shí)，煤粉被一次風(fēng)攜帶到微油點(diǎn)火燃燒器內(nèi)。在鍋爐被點(diǎn)燃后，主油槍和輔助油槍關(guān)閉。從另一個(gè)油槍中噴出霧化的石油，這根油槍叫做輔助油槍。燃燒器在中央導(dǎo)管處安置的兩條油槍的作用很大?！?】研究煤粉通過使用活性組分燃燒器的穩(wěn)定燃燒情況【2】使用微波煤粉鍋爐來研究煤粉的點(diǎn)火和燃燒【3】描述在煤粉燃燒鍋爐中關(guān)于等離子點(diǎn)火技術(shù)的應(yīng)用。通常來說，油通過輸送容量為1噸/小時(shí)的油槍在高壓下被釋放出來。焦炭燃燒和揮發(fā)分的析出能在燃燒器噴嘴出口被觀測到。175:271–89.中文譯文：在全面微油點(diǎn)火燃燒器中給煤率對煙煤燃燒的影響摘要：微油點(diǎn)火燃燒器在冷爐啟動和低負(fù)荷穩(wěn)燃中減少油耗的方法已經(jīng)被建議。82:187–93.[3] Zhang XY, Luo ZB, Zhang SK, Zou GW, Jiang BH. Application testing and study of plasma bustion technology in coal fired boilers with double inlet and outlet tube mill and whirl burner. China Power 2003。 the released heat of bustion thereby increased and in the process the temperature of the pulverized coal would then increase. When coalfeed rates increased from 2 to4 tonnes/h, the released heat of bustion is more than the absorbed heat. Thus at equivalent measuring points at the exits of the first and second bustion chambers and on the burner center line (see Fig. 2) gas temperatures gradually increased. When the coalfeed rate was increased to 5 tonnes/h, the released heat from coal bustion was less than the absorbed heat. Thus gas temperatures at equivalent points decreased. However, pulverized coal can be successfully ignited. Oil from the main oilgun was ignited by a highenergy igniter and burnt in an adiabatic chamber. Subsequently, the oil flame formed by the main oilgun ignited the atomized oil from the auxiliary oilgun. Afterward, the igniter was closed, and the oil flamewas maintained by the two oilguns and burned steadily. During firingup using the two oilguns in the presence of coal, instantaneous ignition was achieved by the oil flame and a steady burn of the pulverized coal developed. The flame formed by the two oilguns and pulverized coal was bright and steady during the whole process. Fig. 4 shows photos of the oil and coal flame.. Char burnout and release rate of C and H at the exit of the burnerFig. 5 shows the char burnout and release rate of C and H at the exit of the tinyoil ignition burner. Char burnout was calculated usingψ=[1（wk/wx）]/(1wk)where w is the coal burnout factor, wk is the ash weight fraction in the input coal, and wx is the ash weight fraction in the char sample.βis the percentage release of ponents (C and H), which wascalculated byβ=1[(wix/wik)(wk/wx)where wix is the weight percentage of the species of interest in the char sample and wik is the weight percentage of the species of interest in the input coal [6].The distributions of char burnout and release rates of C and H were similar at the different coalfeed rates. The char burnout and the release rates of C and H were largest a