I-evaporator yefilimu yokuwa enemiphumela emithathu

Isingeniso esijwayelekile

I-Multi-effect falling evaporator yefilimu isebenzisa isimiso sokuhwamuka kohlobo lwefilimu. Ishisa isixazululo esingavamile ekubiliseni
iphuzu ukuze umswakama othile ubiliswe; ngaleyo ndlela ifinyelele inhloso yokufingqa. Le yunithi yomshini isebenzisa ukukhiqizwa okuqhubekayo. Inezinzuzo zesilinganiso esikhulu sokujiya (1/5-1/10), ububanzi be-viscidity (<400CP), umphumela omuhle wokudlulisa ukushisa nomthamo omkhulu wokucubungula njll. Ifanele ukuhwamuka kwezinto ezizwela ukushisa, eziphakeme ngokungaguquguquki, ezinkulu ku-viscidity kanye nokugqwala, futhi ifanele ukujiya kombila, imboni yotshwala obunamawa nothuli lwenkanyezi ye-marup utshwala be-glutamate ekudleni, ubisi, ushukela kanye ne-lees filtrate.

Le yunithi ine-coefficient enkulu yokudlulisa ukushisa, ngakho umehluko wezinga lokushisa wokudlulisa ukushisa mncane. Ingase ihlangane ukuze
i-double-effect, i-triple-effect, emine noma i-five effect system ehwamukayo ngokuya ngezakhiwo zezinto ezihwamukayo nezinjongo ezihlukene zokuhwamuka, futhi ingase isebenzise umhwamuko ongaphezulu kwenqwaba yepayipi noma umshini wokomisa uhlobo lwediski kanye nomunye umthombo wokushisa ophansi (njengomhwamuko wamanzi ojiyile) ukuze usebenze njengemfucuza ekhipha umhwamuko wokushisa, onciphisa kakhulu umhwamuko wokushisa. Uma imfucumfucu yokushisa inikezwa ngokwanele, ayidingi isitimu esibukhoma, ngaleyo ndlela ithola inzuzo eyongayo emangalisayo.

Isakhiwo nokusebenza

I-evaporator enomphumela owodwa yenziwa igumbi lokufudumeza elilodwa kanye negumbi elihlukanisayo eliwuketshezi oluwuketshezi. Le yunithi ye-evaporator yakhiwa izikhiqizo ezimbili noma ngaphezulu, iphampu yokushisa, amaphampu ahlukahlukene okuphakela nokukhipha, idivayisi yevacuum, ithuluzi lokuhlola, ipayipi kanye nevalvu. Igumbi lokushisisa lakhiwa kakhulu uqweqwe, ithuluzi lokuhlanganisa amapayipi kanye nepayipi lokuxhuma. Futhi igumbi lokuhlukanisa elingu-vapor-liquid lakhiwa yi-crust kanye ne-foam eliminator.

a.Le yunithi yomshini iphakela okubalulekile ngokuqhubekayo phansi komfula noma enhla nomfula noma ngokugeleza okuxubile. Uma ukuphakela ezansi nomfula, indlela yokugeleza kwesisombululo iyafana naleyo yesitimu ngesikhathi sokushisa. Impahla eluhlaza ishiselwa ngaphambi kokubilisa nge-pre-heater bese ifinyelela kumphumela wokuqala. Njengoba indawo yokubilisa yesixazululo emphumeleni wangaphambili iphakeme kunaleyo eyenzeka kamuva, okokusebenza kuzoshisa ngokweqile futhi kuhwamuke ngokwako uma sekungene emphumeleni wakamuva, okwamanje, njengoba amanzi ajiyile ayenomphumela wangaphambili angase ahwamuke ngemva kokungena emphumeleni wakamuva, umfudlana wesibili uzokhiqizwa kakhulu. Uma ukondla enhla nomfula, impahla eluhlaza inikezwa umphumela wesithathu. Impahla yomphumela wokuqala ikhishwa ngomphumela wesibili. Lapho uphakela izinto ezixubile, izinto ezingavuthiwe zondliwa yizinto ezinomphumela wesithathu futhi zikhishwa umphumela wesibili ngomphumela wokuqala.

b.Ngokuncika kumthelela wokucindezelwa kwe-heat-insulation, iphampu yokushisisa ye-steam eject yenza isitimu sesibili emphumeleni wokuqala sithuthukise izinga lokushisa lokugcwala saso bese sibuyela egumbini lokushisisa lomphumela wokuqala ukuze sisebenze njengesitimu sokushisisa, ngaleyo ndlela, izinga lezomnotho lokukhiqiza isitimu liyathuthukiswa.

c.Iphaneli yokusabalalisa emile yenza izinto ezibonakalayo zigeleze njengefilimu ngokulinganayo nangempumelelo ngemva kokungena epayipini lokuphakela lisuka phezulu kwendawo yokushisisa, ngakho-ke i-coefficient yokudlulisa ukushisa iba ngcono kakhulu; futhi ukulahlekelwa kwezinga lokushisa okubangelwa static-pressure ikhanda kungase kukhishwe; ngakho-ke, umehluko wokushisa womphumela mkhulu kakhulu esimweni se-evaporator yefilimu efanayo ewayo.

d.Njengoba isixazululo sihlala isikhathi esifushane ku-evaporator, ifaneleka kakhulu ekuhwamukeni kwezinto ezizwela ukushisa.