SCHEME OF RECOVERY OF LOW-POTENTIAL HEAT FOR MEDIUM- AND LOW-POWER BOILER ROOMS Russian patent published in 1999 - IPC

FIELD: recovery of low-potential heat for medium- and low-power boiler rooms. SUBSTANCE: proposed scheme includes steam generator and water economizer which are replenished from deaerator by means of feed pump through deaerated water cooler. Besides that, scheme includes steam-and-water heat exchanger connected with steam generator by means of steam pipe line, with condensate receiver by means of condensate pipe line and with heat main by means of pump. Evaporative and convective stages are connected in parallel with water economizer at gas end and with smoke exhaust through condensation stage. Deaerator steam connection is connected to convective stage inlet and unboiled water pipe line is connected to evaporative stage. Convective stage is mounted before steam-and-water heat exchanger in way of low of heating-system water. Mounted in succession in way of motion of unboiler water are: condensation and evaporative stages, vacuum pump, flash steam cooler, blow fan provided with burner device and connected by means of air duct and condensation stage bypass connected by means of pipe line. EFFECT: enhanced economical efficiency of scheme. 1 dwg