BOILER PLANT Russian patent published in 2000 - IPC

FIELD: supply heat for industrial and agricultural objects. SUBSTANCE: boiler plant includes burner unit, furnace chamber with water walls, headers, convective heating surfaces and additional heating loop in form of tubular heating surface located in furnace chamber of boiler beyond zone of spread of burner unit jet; it is extended to convective part of boiler plant. At one end, tubular heating surface is connected with heat-transfer agent outlet and at other end, it is connected with heat-transfer agent consumer at elevated temperature and discharge line. EFFECT: enhanced efficiency due to generation of steam in additional tubular heating surface; reduced usage of metal and dimensions of boiler shop. 9 cl, 5 dwg