AUTOMATIC CONTROL SYSTEM FOR WATER HEATING PLANT EMPLOYING WASTE HEAT OF B OILER FLUE GASES

摘要

FIELD: automatic control systems of water heating plants; utilization of waste heat of flue gases; thermal power stations; self-contained boiler houses. SUBSTANCE: proposed system includes temperature regulator of direct heating-system water, temperature regulator of heating-system water preheater inlet and temperature regulator of heating-system water at preheater outlet. Control member of temperature regulator is made in form of valve to avoid cracking in area of welded seams on tube sheets of preheater. This valve is fitted in reverse water pipe line after branch shunting preheater. EFFECT: enhanced efficiency. 1 dwg