Home  >  Industrial Supplies  >  Boiler Parts

Burners are designed to give maintenance free operation using heavy oil, light oil or gas. - details see: https://www.machineto.com/beckett-oil-burners-10210976

Burners are widely used on heat treat and non ferrous melting furnaces, kilns, ovens, air heaters, dryers, chemical process equipment, and other applications where superior temperature uniformity is required. These sealed in, nozzle mix burners for gas and / or distillate oil are stable on stoichiometric ratio, with large amounts of Xces air or with up to 50% Xces air fuel (provided additional air foe combustion is in the furnace near the burner).

WORKING NATURE

Burners can be lighted at rich, lean, or correct air/fuel ratio then immediately turned to high fire. Required gas pressures are low: 2 wg at the burner for coke oven gas, less for natural gas. Required oil pressures at the burner is nearly zero, but a pressure drop of about 10Psi should be taken across the precise oil control valve. The most common ratio control system for 3422 burners uses a cross connected regulator and ratio controller. When appropriate for the application, flow balancing systems or fuel only control (see Xces air: paragraph) is very satisfactory. If furnace temperatures after shutdown rise above 1000C, pass some air through burner to prevent overheating. During a gas operation, use at least 4 osi atomizing air to cool atomizer (full atomizing air may be used); or for extended periods of operation on gas, atomizer can be withdrawn and stored; use a back plate and gasket to seal rear of burner.

LIGHTING / FLAME SUPERVISION

A pilot set normally is used to light 3422 burners. On gas, direct spark ignition of the burner is available. A manual torch can be used in some applications. Burners accept ultraviolet (UV) scanners for monitoring pilot or main flame. A flame rod can be used to monitor pilot or main gas fire. When using flame supervision an interrupted pilot is requires do not used constant or intermittent pilots. If using direct spark ignition, turn off spark after burner lights .an observation port is furnished with all burners. Positions of pilot, flame detector and observation port are interchangeable as long as pilot and flame detector are mounted in adjacent holes.

XCES AIR

Xces air can improve temperature uniformity by avoiding hot spots in front of burners, by churning furnace atmosphere to reduce stratification, and by creating positive furnace pressure to eliminate cold air infiltration. Xces air can give very high effective burner turndown. Thus a furnace used for high temperature work (such as heat treating at 1000C) with burners firing on stoichiometric air/ fuel ratio can also be used for low temperature jobs (such as drawing or drying at 300C) burners firing on lean ratio.

APPLICATION TEMPERATURE

The 3422 burners can be used with chamber temperatures up to 1100C. If furnace temperature could rise above 850C after shutdown, some air should be maintained through the burner to prevent overheating.