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  • R&V engineering circular duct burner

R&V engineering circular duct burner

R&V engineering circular type duct burner is gas and/or oil fired and designed for supplementary firing in exhaust gasses from a gas turbine, gas or diesel engine or other industry process flow. Its main function is to increase the temperature and consequently the steam output of a Heat Recovery Steam Generator (HRSG) or Waste Heat Recovery Unit (WRHU). This burner satisfies the need for variable steam demand e.g. between seasons of the year, between periods of the day (for peak shaving purposes) or between stages of the process.

Features and benefits

 

√  Low maintenance cost

The circular type burner design, which is made up of stainless-steel internals, stabilizers and high-grade stainless-steel construction, is very robust and assures a long lifetime of the burner without requiring any maintenance.

 

√  Low emissions, high stability

The special shape of the burner throat and duct assures optimum stable combustion over the total range resulting in low emissions of NOx, CO and UHC’s.

 

√  Multiple fuels

The circular duct burner can accommodate several different fuel types by installing dedicated fuel headers and nozzles.

 

√  Fresh air firing

Circular type duct burners can be used as a backup system to continue HRSG operation when the turbine is stopped. In that case, fresh air from combustion air fans is routed to the duct.


Suitable fuel

 

Gaseous Fuels Liquid Fuels
Natural gas Light and heavy oil
Refinery gas Naphta
Carbon monoxide Diesel
Hydrogen Liquid waste fuel
Blast furnace gas
Coke oven gas
Landfill/biogas

Circular duct burner structure

 


Technical specifications

 

√  Upto 145Mw for fresh air firing, 80Mw for TEG firing

√  High turndown ratio

√  TEG velocity 25-30/s, fresh air 30-40m/s

√  50-200pa pressure drop of TEG, 700-1000pa for fresh air

√  Max downstream temperature: 1700˚C

√  Capableto fire gas and oil firing at the same time


Circular duct burner system layout

 


Circular duct burner installations

 



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