催化燃燒系統

 催(cui)化燃燒設備是指在(zai)催(cui)化(hua)劑作用下燃燒(shao)的裝置或設(she)備。催(cui)催(cui)化(hua)燃燒(shao)設(she)備的工作原理是：借(jie)助催(cui)化(hua)劑使(shi)有機廢(fei)氣在(zai)較低的起燃溫度下進(jin)行無焰燃燒(shao)，使(shi)有機廢(fei)氣分(fen)解(jie)為二氧化(hua)碳和水蒸汽。催(cui)化(hua)燃燒(shao)設(she)備電控(kong)(kong)制系統由(you)(you)PLC控(kong)(kong)制器(qi)、文(wen)本顯示器(qi)、變頻調速器(qi)、點火(huo)器(qi)、紫外線(xian)傳(chuan)感器(qi)、熱電偶等電控(kong)(kong)設(she)備以(yi)及風機，另外由(you)(you)零壓閥調節燃氣與空氣的比(bi)例。

可燃(ran)(ran)(ran)物(wu)在(zai)催(cui)(cui)(cui)化(hua)(hua)(hua)(hua)(hua)(hua)劑(ji)(ji)作用下(xia)(xia)燃(ran)(ran)(ran)燒。與直接燃(ran)(ran)(ran)燒相(xiang)比，催(cui)(cui)(cui)化(hua)(hua)(hua)(hua)(hua)(hua)燃(ran)(ran)(ran)燒溫(wen)(wen)度較低(di)，燃(ran)(ran)(ran)燒比較完全。催(cui)(cui)(cui)化(hua)(hua)(hua)(hua)(hua)(hua)燃(ran)(ran)(ran)燒所用的(de)(de)催(cui)(cui)(cui)化(hua)(hua)(hua)(hua)(hua)(hua)劑(ji)(ji)為(wei)(wei)(wei)具有大(da)比表面的(de)(de)貴金(jin)(jin)屬(shu)和(he)金(jin)(jin)屬(shu)氧化(hua)(hua)(hua)(hua)(hua)(hua)物(wu)多組分物(wu)質。例如家(jia)用負載(zai)Pd或稀土化(hua)(hua)(hua)(hua)(hua)(hua)合物(wu)的(de)(de)催(cui)(cui)(cui)化(hua)(hua)(hua)(hua)(hua)(hua)燃(ran)(ran)(ran)氣(qi)灶(zao)，可減少尾氣(qi)中CO含量，提高熱效率(lv)。負載(zai)0.2%pt的(de)(de)氧化(hua)(hua)(hua)(hua)(hua)(hua)鋁催(cui)(cui)(cui)化(hua)(hua)(hua)(hua)(hua)(hua)劑(ji)(ji)，在(zai)500℃下(xia)(xia)，可將大(da)多數(shu)有機(ji)化(hua)(hua)(hua)(hua)(hua)(hua)合物(wu)燃(ran)(ran)(ran)燒，脫臭凈(jing)化(hua)(hua)(hua)(hua)(hua)(hua)到化(hua)(hua)(hua)(hua)(hua)(hua)學位移σ=1以(yi)下(xia)(xia)。催(cui)(cui)(cui)化(hua)(hua)(hua)(hua)(hua)(hua)燃(ran)(ran)(ran)燒為(wei)(wei)(wei)無(wu)焰燃(ran)(ran)(ran)燒，因此適用于性能(neng)要求高的(de)(de)場合，如以(yi)H2和(he)O2為(wei)(wei)(wei)原料的(de)(de)燃(ran)(ran)(ran)料電池、用汽油或酒精為(wei)(wei)(wei)原料的(de)(de)懷爐(催(cui)(cui)(cui)化(hua)(hua)(hua)(hua)(hua)(hua)劑(ji)(ji)為(wei)(wei)(wei)浸Pt石棉)等(deng)。如消(xiao)除化(hua)(hua)(hua)(hua)(hua)(hua)工廠NOx的(de)(de)煙霧(wu)，可加燃(ran)(ran)(ran)料到煙霧(wu)中，通(tong)過負載(zai)型鉑(bo)和(he)鈀催(cui)(cui)(cui)化(hua)(hua)(hua)(hua)(hua)(hua)劑(ji)(ji)，催(cui)(cui)(cui)化(hua)(hua)(hua)(hua)(hua)(hua)燃(ran)(ran)(ran)燒使NOx轉化(hua)(hua)(hua)(hua)(hua)(hua)為(wei)(wei)(wei)N2氣(qi)。 采用適當的(de)(de)催(cui)(cui)(cui)化(hua)(hua)(hua)(hua)(hua)(hua)劑(ji)(ji)，使用有害氣(qi)體(ti)中的(de)(de)可燃(ran)(ran)(ran)物(wu)質在(zai)較低(di)的(de)(de)溫(wen)(wen)度下(xia)(xia)分解、氧化(hua)(hua)(hua)(hua)(hua)(hua)的(de)(de)燃(ran)(ran)(ran)燒方法。

催化燃(ran)(ran)(ran)燒(shao)設備電(dian)(dian)控(kong)(kong)制(zhi)系(xi)統(tong)(tong)由(you)(you)PLC控(kong)(kong)制(zhi)器(qi)(qi)(qi)(qi)、文本(ben)顯示(shi)器(qi)(qi)(qi)(qi)、變頻(pin)調速器(qi)(qi)(qi)(qi)、點火器(qi)(qi)(qi)(qi)、紫外線傳感(gan)器(qi)(qi)(qi)(qi)、熱(re)電(dian)(dian)偶(ou)等(deng)電(dian)(dian)控(kong)(kong)設備以(yi)及(ji)風機(ji)，另外由(you)(you)零壓閥調節燃(ran)(ran)(ran)氣(qi)與空氣(qi)的(de)(de)比例。催化燃(ran)(ran)(ran)燒(shao)電(dian)(dian)氣(qi)控(kong)(kong)制(zhi)系(xi)統(tong)(tong)工(gong)(gong)(gong)作(zuo)過(guo)(guo)(guo)程(cheng)(cheng)分(fen)為(wei)三個狀態(tai)(tai)：燃(ran)(ran)(ran)燒(shao)器(qi)(qi)(qi)(qi)工(gong)(gong)(gong)作(zuo)狀態(tai)(tai)、停止狀態(tai)(tai)及(ji)參數設定狀態(tai)(tai)。在工(gong)(gong)(gong)作(zuo)狀態(tai)(tai)中(zhong)又分(fen)為(wei)點火過(guo)(guo)(guo)程(cheng)(cheng)和(he)燃(ran)(ran)(ran)燒(shao)過(guo)(guo)(guo)程(cheng)(cheng)。由(you)(you)安裝的(de)(de)熱(re)電(dian)(dian)偶(ou)檢測(ce)出(chu)(chu)溫(wen)(wen)度(du)(du)(du)(du)(du)(du)，送文本(ben)顯示(shi)器(qi)(qi)(qi)(qi)顯示(shi)。PLC具有(you)模擬量(liang)輸入、輸出(chu)(chu)模塊，檢測(ce)火焰燃(ran)(ran)(ran)燒(shao)信(xin)號(hao)和(he)熱(re)電(dian)(dian)偶(ou)溫(wen)(wen)度(du)(du)(du)(du)(du)(du)信(xin)號(hao)，將檢測(ce)到(dao)的(de)(de)信(xin)號(hao)與設定的(de)(de)信(xin)號(hao)經過(guo)(guo)(guo)比較(jiao)運(yun)算(suan)后，通過(guo)(guo)(guo)0～10 V電(dian)(dian)信(xin)號(hao)控(kong)(kong)制(zhi)變頻(pin)器(qi)(qi)(qi)(qi)的(de)(de)輸出(chu)(chu)頻(pin)率(lv)來調整風機(ji)的(de)(de)轉速，保(bao)持燃(ran)(ran)(ran)燒(shao)器(qi)(qi)(qi)(qi)的(de)(de)燃(ran)(ran)(ran)燒(shao)溫(wen)(wen)度(du)(du)(du)(du)(du)(du)，這就(jiu)是構成以(yi)設定溫(wen)(wen)度(du)(du)(du)(du)(du)(du)為(wei)基準(zhun)的(de)(de)控(kong)(kong)制(zhi)系(xi)統(tong)(tong)；自動檢測(ce)燃(ran)(ran)(ran)燒(shao)器(qi)(qi)(qi)(qi)溫(wen)(wen)度(du)(du)(du)(du)(du)(du)信(xin)號(hao)與設定的(de)(de)溫(wen)(wen)度(du)(du)(du)(du)(du)(du)比較(jiao)，輸出(chu)(chu)各(ge)類報(bao)警信(xin)號(hao)或直接(jie)停機(ji)。顯示(shi)器(qi)(qi)(qi)(qi)可以(yi)顯示(shi)燃(ran)(ran)(ran)氣(qi)流量(liang)、燃(ran)(ran)(ran)燒(shao)溫(wen)(wen)度(du)(du)(du)(du)(du)(du)和(he)變頻(pin)器(qi)(qi)(qi)(qi)輸出(chu)(chu)頻(pin)率(lv)。設定參數和(he)工(gong)(gong)(gong)作(zuo)狀態(tai)(tai)等(deng)信(xin)息；可以(yi)通過(guo)(guo)(guo)顯示(shi)器(qi)(qi)(qi)(qi)在線調整運(yun)行溫(wen)(wen)度(du)(du)(du)(du)(du)(du)參數，修(xiu)改設定溫(wen)(wen)度(du)(du)(du)(du)(du)(du)控(kong)(kong)制(zhi)風機(ji)的(de)(de)運(yun)行。該(gai)系(xi)統(tong)(tong)還設有(you)多種保(bao)護功(gong)能，尤(you)其是較(jiao)強的(de)(de)邏輯互(hu)鎖功(gong)能，從而保(bao)證系(xi)統(tong)(tong)工(gong)(gong)(gong)作(zuo)可靠，并且具有(you)較(jiao)為(wei)完善的(de)(de)控(kong)(kong)制(zhi)功(gong)能。

催(cui)化燃燒設(she)備的特點(dian)：

1、適合處理高(gao)溫、高(gao)濃(nong)度、連續性產生(sheng)的有機廢氣

2、不產生二(er)次(ci)污染，設備投資及運行費用低；

3、催化低(di)(di)溫分(fen)解(jie)，預(yu)熱(re)時間短，能耗低(di)(di)，催化劑使用壽命(ming)長，催化分(fen)解(jie)凈化率高達(da)97%以上(shang)；

4、設(she)備(bei)運行穩定，可靠，活動(dong)件少，檢(jian)修系統配(pei)備(bei)完善，操作維修方便(bian)；

5、整個運行過程中實現全自動化PLC控制，方便，可(ke)靠；

6、系統設(she)施完善，配有阻火器，泄爆口，運行時出現的異常情況將報警并自動(dong)停(ting)機(ji)。

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