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催化燃燒設備的控制系統

更新時間:22/11/19 11:42:11     來源:cent8.com
  催(cui)化燃(ran)燒設備是助催(cui)化劑(ji)使(shi)有(you)機(ji)廢氣(qi)(qi)在(zai)(zai)較低的起燃(ran)溫度(du)下(xia)進(jin)(jin)行(xing)無焰燃(ran)燒,使(shi)有(you)機(ji)廢氣(qi)(qi)分解為無毒(du)的二(er)氧化碳和水蒸(zheng)汽。催(cui)化燃(ran)燒裝(zhuang)置主(zhu)要由熱(re)交(jiao)換(huan)器、燃(ran)燒室(shi)、催(cui)化反應(ying)器、熱(re)回收系統和凈化煙氣(qi)(qi)的排(pai)放(fang)煙囪(cong)等(deng)部(bu)分組成,如右圖所(suo)示。其凈化原理是:未凈化氣(qi)(qi)體在(zai)(zai)進(jin)(jin)入燃(ran)燒室(shi)以前(qian),先經(jing)過(guo)熱(re)交(jiao)換(huan)器被預熱(re)后(hou)(hou)送至燃(ran)燒室(shi),在(zai)(zai)燃(ran)燒室(shi)內達到所(suo)要求的反應(ying)溫度(du),氧化反應(ying)在(zai)(zai)催(cui)化反應(ying)器中(zhong)進(jin)(jin)行(xing),凈化后(hou)(hou)煙氣(qi)(qi)經(jing)熱(re)交(jiao)換(huan)器釋放(fang)出部(bu)分熱(re)量,再由煙囪(cong)排(pai)入大氣(qi)(qi)。
  但這一系列的(de)反應過程(cheng)還需要在控制器的(de)操控下進行(xing)。
  催(cui)化(hua)燃燒設(she)備控制(zhi)(zhi)系(xi)(xi)統(tong)(tong)(tong):在線(xian)脫附(fu)(fu)(fu),按照順序,對(dui)吸(xi)(xi)附(fu)(fu)(fu)飽和的活性炭(tan)吸(xi)(xi)附(fu)(fu)(fu)箱依次脫附(fu)(fu)(fu),已經脫附(fu)(fu)(fu)完成的箱體,輪(lun)番進入吸(xi)(xi)附(fu)(fu)(fu)過程,系(xi)(xi)統(tong)(tong)(tong)始終保持有(you)4個箱體處于吸(xi)(xi)附(fu)(fu)(fu)狀態。控制(zhi)(zhi)系(xi)(xi)統(tong)(tong)(tong)對(dui)系(xi)(xi)統(tong)(tong)(tong)中(zhong)的風機(ji)、預熱(re)器(qi)、溫(wen)(wen)(wen)(wen)度、電動(dong)(dong)(dong)閥(fa)門進行控制(zhi)(zhi)。當(dang)(dang)系(xi)(xi)統(tong)(tong)(tong)溫(wen)(wen)(wen)(wen)度達(da)到預定(ding)的催(cui)化(hua)溫(wen)(wen)(wen)(wen)度時,系(xi)(xi)統(tong)(tong)(tong)自動(dong)(dong)(dong)停止(zhi)(zhi)預熱(re)器(qi)的加熱(re),當(dang)(dang)溫(wen)(wen)(wen)(wen)度不夠時,系(xi)(xi)統(tong)(tong)(tong)又重新(xin)啟(qi)動(dong)(dong)(dong)預熱(re)器(qi),使催(cui)化(hua)溫(wen)(wen)(wen)(wen)度維持在一(yi)個適當(dang)(dang)的范圍;當(dang)(dang)催(cui)化(hua)床(chuang)(chuang)(chuang)的溫(wen)(wen)(wen)(wen)度過高時,開啟(qi)補(bu)冷風閥(fa),向催(cui)化(hua)床(chuang)(chuang)(chuang)系(xi)(xi)統(tong)(tong)(tong)內補(bu)充新(xin)鮮(xian)空氣,可有(you)效(xiao)地(di)控制(zhi)(zhi)催(cui)化(hua)床(chuang)(chuang)(chuang)的溫(wen)(wen)(wen)(wen)度,防止(zhi)(zhi)催(cui)化(hua)床(chuang)(chuang)(chuang)的溫(wen)(wen)(wen)(wen)度過高。此外(wai),系(xi)(xi)統(tong)(tong)(tong)中(zhong)還(huan)有(you)阻火(huo)器(qi),可有(you)效(xiao)地(di)防止(zhi)(zhi)火(huo)焰(yan)回串(chuan)。當(dang)(dang)活性碳(tan)吸(xi)(xi)附(fu)(fu)(fu)床(chuang)(chuang)(chuang)脫附(fu)(fu)(fu)時溫(wen)(wen)(wen)(wen)度過高時,自動(dong)(dong)(dong)啟(qi)用補(bu)冷風機(ji)降低系(xi)(xi)統(tong)(tong)(tong)溫(wen)(wen)(wen)(wen)度,溫(wen)(wen)(wen)(wen)度超過報警(jing)值,自動(dong)(dong)(dong)開啟(qi)火(huo)災應(ying)急(ji)自動(dong)(dong)(dong)噴淋系(xi)(xi)統(tong)(tong)(tong),確保系(xi)(xi)統(tong)(tong)(tong)安全(quan)。

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