Heat recovery steam generator boiler introduction

Heat recovery steam generator boiler introduction
Heat Recovery Steam Generators are utilized to recover waste heat from exhaust of gas turbines, boosting efficiency from 35% to 40 % zero in simple cycle (also referred to as open cycle) mode to 55% to 60% range in combined cycle mode. The steam generated by HRSG can be utilized for generating electricity in the steam turbine, for process heating for both i.e. combined heat and power.
Heat Recovery steam generator for Gas turbine is Horizontal design, Natural circulation, Triple pressure levels, with Reheat option, Supplementary and Outside Firing mode with Automatic changeover
HRSGs from ZG boiler are based on technology with HRSGs incorporate the newest advances in thermal technology, offering benefits for instance multiple pressure levels and unprecedented reliability. The growing amount of ZG HRSGs bears testimony to their importance in clean energy solutions.

HRSG Features
1.Natural circulation made for higher reliability, availability & lower power consumption
2.Single drum construction for reduced thermal stress during start-up & shutdown; special drum internals that promote circulation &  ensure high steam purity
3.Fully welded construction for quicker start-ups & shutdowns with welds safely located away from gas path for higher reliability and long life
4.Gas-tight, internally insulated ducting & casing for lower thermal loads; internal duct designed carefully for predictable performance & long life
5.Tolerant to economiser steaming for more well off-design operation; fully drainable super heater for higher reliability
6.Strategic soot blowing for oil firing
7.Firing gas and #2 oil from the duct burner
Heat recovery boiler is practicle for the technology benefit for industry. The boiler uses the waste heat to generate energy for industry operation, and the boiler will be more and more popular in the furture.