METHOD AND DEVICE FOR BEFORE-BOILER TREATMENT OF WATER IN HOT WELL OF BOILER PLANT Russian patent published in 1997 - IPC

FIELD: heat-power engineering; waste steam condensate and make-up water receivers for shipboard auxiliary boiler plants with deaeratorless water-conditioning system. SUBSTANCE: dirty condensates are fed through branch pipes 2 and 3 and are cleaned from mechanical impurities in filters 7 and 8; dirty condensates are coalescent in coalescence element 9 at discharge of petroleum products by means of cavity 12; then cleaned and pure condensates are mixed in chamber 10. Make-up water fed through branch pipe 4 is first heated by heat of condensate of hot well in external cavity 30 of heat exchanger 24 and then by heat of heating steam in inner cavity 26 of deaerator 27, after which it is deaerated in deaerator 27 at discharge of corrosive active gases into atmosphere; cooling is effected in inner cavity 25 of heat exchanger 24 and mixing is effected by means of mixing cavity 23 communicated with inner cavity of hot well; then feed water thus prepared is fed to boiler plant. EFFECT: enhanced efficiency. 3 cl, 1 dwg