Ubushyuhe buke bwo kwangirika ni iki?
Kwangirika kwa acide sulfurique iboneka hejuru yubushyuhe bwinyuma bwa boiler (economizer, preheater air) byitwa kwangirika kwubushyuhe buke kubera ko gazi ya flue hamwe nubushyuhe bwurukuta rwibice biri hejuru yubushyuhe bwo hasi. Nyuma yo kwangirika kwubushyuhe buke bibaye muri tube yubukungu, kumeneka bishobora kubaho mugihe gito, bigatera umutekano muke. Gufunga itanura ryo gusana nabyo bizatera igihombo kinini mubukungu.
Impamvu nyamukuru itera ubushyuhe buke bwa ruswa
Amazi ya sulferi mu mavuta arashya kugirango akore dioxyde de sulfure (S + 02 = SO2). Dioxyde de sulfure irushijeho kuba oxyde munsi ya catalizator kugirango ibe trioxide ya sulfure (2SO2 + 02 = 2S03). SO3 hamwe numwuka wamazi muri gaze ya flue itanga umwuka wa acide sulfurike (SO3 + H2O = H2SO4). Kuba umwuka wa acide sulfurike wongera cyane ikime cya gaz ya flue. Kubera ko ubushyuhe bwikirere mubushuhe bwikirere buri hasi, ubushyuhe bwa gaze ya flue mubice byabanjirije ubushyuhe ntabwo buri hejuru, kandi ubushyuhe bwurukuta akenshi buri munsi yikigereranyo cyikime cya gaz. Muri ubu buryo, imyuka ya acide sulfurike izahurira hejuru yubushyuhe bwa preheater yumuyaga, bigatera kwangirika kwa aside sulfurike. Kwangirika k'ubushyuhe buke bikunze kugaragara mubushuhe bwo mu kirere, ariko iyo ibirimo sulfure biri mu mavuta ari byinshi, coefficient irenze ikirere nini, ibirimo SO3 biri muri gaze ya flue ni byinshi, aho ikime cya aside kirazamuka, kandi ubushyuhe bwamazi yo kugaburira ni hasi (turbine irahagarikwa kubushyuhe bwo hejuru), umuyoboro wubukungu ushobora no kurwara ubushyuhe buke.
Guteka ubushyuhe buke bwo kwangirika
Isosiyete ikwirakwiza ibyuka byo mu buriri byashyizwe mu bikorwa rimwe na rimwe mu gihe kitarenze umwaka, kandi imiyoboro myinshi yo mu muyoboro wo hasi w’ubukungu watewe no gutobora no gutemba. Amavuta yo gutekesha ni uruvange rwamakara ya bituminiyumu na siliveri, ibikoresho bya economizer tube ni ibyuma 20 (GB / T 3087-2008), naho ubushyuhe bwinjira mubukungu muri rusange buri munsi ya 100 ° C.
Impamvu zo gutobora no kumeneka kwa tube yubukungu byasesenguwe hifashishijwe isesengura ryibintu, isuzuma ryumutungo wubukanishi, isesengura ryibyuma, scanning electron microscope morphologie nisesengura ryingufu, isesengura ryicyiciro cya X-ray, nibindi. Isesengura ryerekanye ko umuyoboro wubukungu ikora ku bushyuhe buke, kandi ibicuruzwa byangirika birimo ibintu byinshi bya S na Cl. Urukuta rw'inyuma rw'umuyoboro w'ubukungu rufite ikibazo cyo kwangirika k'ubushyuhe buke mu gihe cy'ubushyuhe buke no kwangirika kwa aside mu gihe cyo guhagarika, amaherezo bigatuma habaho kuzigama amakara. Umuyoboro urabora, urasobekeranye kandi uratemba.
Ingamba zo gukumira ruswa nkeya
1. Ongera ubushyuhe bwurukuta rwumuyaga uhumeka kugirango ubushyuhe bwurukuta burenze aho ikime cya flue.
2. Ongeraho inyongeramusaruro kuri gaz ya flue kugirango ubuze SO3 kandi wirinde kubyara umwuka wa acide sulfurike. 3. Koresha ubushyuhe buke bwo kwangirika kwangirika kugirango ushushe ikirere hamwe nubukungu.
4. Koresha umuriro wa ogisijeni muke kugirango ugabanye ogisijeni irenze gaze ya flue kandi wirinde kandi ugabanye ihinduka rya SO2 muri SO3.
5. Mugushakisha ubushyuhe bwikime cya acide, aho ikime cya acide mubihe bimwe byakazi gishobora kumenyekana neza, bityo bigahindura ubushyuhe bwa gaze ya gaze kugirango bigere kumiterere myiza yo kuzigama ingufu no kongera ubuzima bwa boiler.
Igihe cyo kohereza: Ugushyingo-30-2023
