The Hauck EJC burner promotes high velocity recirculation of heated gases for temperature uniformity and efficiency. It will burn any clean industrial fuel gas, No. 2 fuel oil, or a combination of gas and oil with the same performance characteristics on oil as on gas. Turndown, excess air and excess fuel are excellent on either fuel. The EJC is available in four sizes from 370,000 to 3,700,000 Btu/hr (108 to 1,080 kW). Also available in preheated air versions to 800°F (425°C), and in medium velocity versions.
Features
• Built-in flow metering of gas and air
• Excess air and fuel capability
• Manual or automatic control
• Operates on gas, oil or a combination of
fuels
Benefits
• Simple design for low maintenance
operation
• Wide turndown
• High velocity recirculation of furnace
gases for maximum heat transfer
and temperature uniformity
Advantages
Hauck's EnerJet (EJC) series high velocity combination burners have been specially designed for application where high velocity recirculation of heated gases is desired for temperature uniformity and efficiency. The EJC's fast, efficient high velocity recirculation reduces the need for installing expensive high temperature recirculating fans or diluting flame temperatures with costly excess air. The EJC's high velocity 'jet energy' entrains and recirculates gases for maximum convection heat transfer and temperature uniformity – resulting in increased production at reduced fuel consumption and cost.
Efficient Operation. The EJC is stable over its entire operating range and will burn any clean industrial fuel gas, No. 2 fuel oil, or a combination of gas and oil.
A noteworthy feature of the DC is its ability when firing on oil to maintain a similar range of performance characteristics experienced on gas firing in terms of turndown, excess air, and excess fuel operation.
The EJC can be controlled manually or automatically. A typical gas control system employs a Hauck Ratio Regulator for each control zone to properly maintain the air-to-fuel ratio. For oil firing, Hauck recommends an MRO regulator for each burner to properly maintain air-to-fuel ratio and simplify burner setup.
Construction. A simple design, with no moving parts, makes this burner virtually maintenance free. Parts subjected to heat are either of heat resistant cast iron or stainless steel. A special backplate/tile sealing arrangement completely eliminates overheating. The EJC's tile is made of a low cement castable refractory and runs at lower temperatures than typical combination fired pressurized tiles. Series 100 and 200 utilize a square tile design. Series 300 and 400 use a round tile.
Air-Fuel Metering. Flow metering orifices in the EJC air and gas supply connections give accurate readings of air and gas volumes entering the burner. This built-in flow metering provides the means for 'fine- tuning' and properly setting flow rates to achieve optimum performance with desired flame condition and at reduced cost. Optional oil flow meters are available to 'fine tune' the burner when firing No. 2 fuel oil.
Piloting/Flame Supervision.Provision is made for a spark ignited gas pilot. An ultraviolet (UV) type flame detector system – with constant purge – is available for use with gas, oil, or combination fuels.
Printable Literature
EJC Fact Sheet
EJC Specifications
EJC Parts List
EJC Instructions
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