STEAM BOILER WITH INTEGRATED NITROGEN TANK AND HEAT EXCHANGER

摘要

The present invention relates to a boiler comprising; a casing having a heated water inlet/outlet and a hot water inlet/outlet; a nitrogen packed tank placed at the lower region of the easing for nitrogen gas to be packed therein; an elastic pocket, which is located inside the nitrogen packed tank for inflow/outflow of the heated water, and elastically transforms the volume thereof according to the inflow/outflow of the heated water; and a hot water heat exchanger placed at the upper region of the casing for adjusting the temperature of the hot water.