Steam boiler, has saturated vapor accumulation unit whose upper zone is connected to outlet of steam generated unit, and reversing external gas chamber, trellis structure and external fuel burner provided on smoke box units

摘要

The boiler has a tubular structure provided in an envelope. The envelope is connected to cylindrical ends of smoke box units. A reversing external gas chamber, a trellis structure and an external fuel burner are provided on the box units. An upper zone of a saturated vapor accumulation unit is connected to an outlet of a steam generated unit.