OPIS SISTEMA HRSG IN ANALIZA VODEPARE PRI HLADNEM ZAGONU
Povzetek
Osnovni namen prispevka je podrobna predstavitev HRSG‐ja in analiza možnosti zmanjšanja izpusta generirane pare v atmosfero ob hladnem zagonu. Izpust zagonske pare v atmosfero ni najboljša možna rešitev, saj se s tem poveča zvočna obremenitev okolja, odvod kotlovske vode in toplotne energije v okolje itd. V tem prispevku so analizirane možne rešitve preprečitve odvoda zagonske pare v atmosfero, tako da se mešanica vode‐pare ob hladnem zagonu HRSG‐ja odvede v novi zagonski parovod, separatorsko posodo ali v posodo za odvodnjavanje. Analizirani pa so bili tudi podatki kvalitete pare ob zagonu HRSG‐ja. Rezultati pokažejo, da prve 3 minute HRSG generira samo vodo, ki pa se ne sme odvesti v HP oziroma IP zbiralno kom parovoda. Šele po 4 minutah HRSG prične generirati mešanico vode‐pare. Zato se pri hladnem zagonu ne priporoča odvod generirane pare v novi zagonski parovod, ampak da se navedena mešanica vode‐pare, ki nastane pri hladnem zagonu HRSG‐ja, odvede v separatorsko posodo oziroma v posodo za odvodnjavanje. Navedeni posodi morata biti temu primerno dimenzionirani.
Prenosi
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