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煤氣發生爐爐窯管道安裝經常遇到哪些問題

2022/10/31 9:50:55點擊:

煤(mei)氣發(fa)(fa)生爐(lu)配置爐(lu)窯(yao)(yao)進行(xing)管(guan)道(dao)(dao)安(an)(an)裝(zhuang)時,經常遇到圓(yuan)(yuan)形(xing)(xing)(xing)(xing)(xing)的(de)(de)(de)各(ge)種形(xing)(xing)(xing)(xing)(xing)制的(de)(de)(de)爐(lu)窯(yao)(yao),比如(ru)(ru)(ru)圓(yuan)(yuan)形(xing)(xing)(xing)(xing)(xing)立式窯(yao)(yao)已及(ji)圓(yuan)(yuan)形(xing)(xing)(xing)(xing)(xing)倒煙窯(yao)(yao)等,燒嘴大都均勻分布圓(yuan)(yuan)周。其管(guan)道(dao)(dao)的(de)(de)(de)安(an)(an)裝(zhuang)應該設(she)計(ji)成(cheng)圓(yuan)(yuan)形(xing)(xing)(xing)(xing)(xing)圍(wei)繞(rao)還是多(duo)(duo)邊(bian)(bian)形(xing)(xing)(xing)(xing)(xing)圍(wei)繞(rao)比較(jiao)好?要(yao)從(cong)多(duo)(duo)方面考慮,首先從(cong)選擇的(de)(de)(de)煤(mei)氣發(fa)(fa)生爐(lu)來說,如(ru)(ru)(ru)果是冷凈煤(mei)氣或者是雙段(duan)熱(re)脫焦煤(mei)氣,由(you)于(yu)(yu)煤(mei)氣比較(jiao)潔凈,含(han)焦油少管(guan)道(dao)(dao)不(bu)(bu)容易(yi)堵(du)(du)塞,可以圓(yuan)(yuan)形(xing)(xing)(xing)(xing)(xing)圍(wei)繞(rao);如(ru)(ru)(ru)果是單段(duan)煤(mei)氣發(fa)(fa)生爐(lu)所(suo)產熱(re)粗煤(mei)氣其焦油含(han)量大,應采用多(duo)(duo)邊(bian)(bian)形(xing)(xing)(xing)(xing)(xing)圍(wei)繞(rao)設(she)計(ji),管(guan)道(dao)(dao)端口設(she)計(ji)為(wei)防爆密封,既安(an)(an)全(quan)又便于(yu)(yu)管(guan)道(dao)(dao)清理(li),如(ru)(ru)(ru)果設(she)計(ji)為(wei)圓(yuan)(yuan)形(xing)(xing)(xing)(xing)(xing)圍(wei)繞(rao),管(guan)道(dao)(dao)堵(du)(du)塞不(bu)(bu)易(yi)清理(li)。多(duo)(duo)邊(bian)(bian)圍(wei)繞(rao)大多(duo)(duo)有五(wu)邊(bian)(bian)形(xing)(xing)(xing)(xing)(xing)、六變(bian)形(xing)(xing)(xing)(xing)(xing)等根據爐(lu)窯(yao)(yao)周長大小設(she)計(ji)不(bu)(bu)同的(de)(de)(de)多(duo)(duo)邊(bian)(bian)管(guan)道(dao)(dao)組合,在管(guan)道(dao)(dao)的(de)(de)(de)清理(li)和防爆安(an)(an)全(quan)上相(xiang)對于(yu)(yu)圓(yuan)(yuan)形(xing)(xing)(xing)(xing)(xing)圍(wei)繞(rao)要(yao)好。

在工業(ye)企(qi)業(ye)中(zhong),由于地下工業(ye)管道(dao)(dao)很復(fu)雜(za),所以常采用架空煤(mei)氣(qi)(qi)管道(dao)(dao)。嚴禁發(fa)生爐煤(mei)氣(qi)(qi)、水煤(mei)氣(qi)(qi)、半(ban)水煤(mei)氣(qi)(qi)、高爐煤(mei)氣(qi)(qi)和轉爐煤(mei)氣(qi)(qi)管道(dao)(dao)埋地敷設。因為這類煤(mei)氣(qi)(qi)一氧化碳含量比較高,若(ruo)管道(dao)(dao)埋地敷設,一旦泄漏煤(mei)氣(qi)(qi)會沿地縫竄至(zhi)值班室(shi)、操作室(shi)而不易被察覺,容易引起中(zhong)毒事故。

架(jia)(jia)空(kong)管(guan)(guan)道(dao)(dao)的傾斜(xie)(xie)度(du)架(jia)(jia)空(kong)管(guan)(guan)道(dao)(dao)的傾斜(xie)(xie)度(du)一般為2%~5%。架(jia)(jia)空(kong)管(guan)(guan)道(dao)(dao)之所以要保(bao)持(chi)一定(ding)(ding)的傾斜(xie)(xie)度(du),是基于大部分(fen)工業企業架(jia)(jia)空(kong)輸(shu)送的煤氣凈化(hua)程度(du)不(bu)(bu)高,除(chu)含有較多(duo)水(shui)分(fen)外(wai),還含有較多(duo)的硫化(hua)物(wu)、氰(qing)化(hua)物(wu)等腐(fu)(fu)蝕性成分(fen)以及萘、焦池、灰塵等易沉(chen)降成分(fen),另(ling)外(wai)架(jia)(jia)空(kong)管(guan)(guan)道(dao)(dao)跨距間因(yin)撓(nao)曲(qu)存在洼(wa)點(dian),洼(wa)點(dian)處會積存冷凝(ning)水(shui)和沉(chen)積物(wu),洼(wa)點(dian)附近(jin)也可能積聚沉(chen)降物(wu)而(er)使冷凝(ning)水(shui)排泄不(bu)(bu)暢。若管(guan)(guan)道(dao)(dao)沒有傾斜(xie)(xie)度(du),煤氣中的腐(fu)(fu)蝕性成分(fen)會與管(guan)(guan)材發生化(hua)學反應(ying),腐(fu)(fu)蝕管(guan)(guan)道(dao)(dao),既縮(suo)短管(guan)(guan)道(dao)(dao)的使用(yong)年限,又(you)增加不(bu)(bu)安全因(yin)素。架(jia)(jia)空(kong)管(guan)(guan)道(dao)(dao)傾斜(xie)(xie)度(du)確定(ding)(ding)的原(yuan)則,是使管(guan)(guan)道(dao)(dao)不(bu)(bu)出現反坡。