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Foundry Equipment > Inert Gas Generators > Rich Exothermic Model XL Annealing Atmosphere Generators > View Items  

Rich Exothermic Model XL Annealing Atmosphere Generators

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Gas Atmospheres Model XL annealing atmosphere generators have been proven in use in many applications where metal heating processes require a rich exothermic atmosphere.

They are designed to produce combustibles ranging from 11% to 22% from a variety of gaseous hydrocarbon fuels.

Typical applications include:

  • Bright annealing of low carbon steel
  • Clean annealing of silicone steels
  • Annealing of tin plate
  • Brazing of dissimilar metals onto low carbon steels
  • Reduction of surface oxides on metals
These Gas Atmospheres annealing atmosphere generators are completely piped, wired and assembled in a "packaged" unit, providing ease of installation and maintenance.

The standard design employs a shell and tube heat exchanger to reduce the product gas temperature to approximately 15 °F above the available cooling water temperature.

A nozzle-mix burner system is supplied, with ceramic fiber refractory lining. The thermal shock of frequent start-ups and shutdowns will not shorten the life of this lining.

The generator can be producing a full reducing atmosphere in less than 10 minutes. This shortened start-up not only increases production operating time, but also saves utility cost for fuel, power and water.

The Gas Atmospheres unique burner design also provides desired gas analysis without the use of expensive catalyst.

Safety controls are provided for automatic shutdown in the event of utility failure.

Detailed specifications for standard models are available on request. In addition to standard units. Gas Atmospheres will design and engineer equipment to suit specific applications.

Standard features include:

  • Ceramic fiber lined
  • Automatic switchover to low ratio operation when chamber reaches proper operating temperature.
  • Thermocouple interlocked with flame scanner to prevent low ratio operation if chamber is not at operating temperature
  • Timed purge prior to ignition with "SAFE START" indicator.
  • Product gas relief regulator.
  • Ultraviolet flame scanner.
  • Low air flow switch.
  • Low, High and Fuel pressure switches.
  • Water flow switch.
  • Fused interlocking door disconnect.
  • NEMA-12 electrical enclosure with NEMA-1 components.
  • Unit is piped and wired as a package.
Auxiliary equipment include:
  • Oxygen and combustibles analyzers
  • Refrigerant and Dessicant gas dryers.




Specifications
Model XL-1500
Capacity15000 SCFH
Power5.6 kW·h
Water1120 GPM
Natural Gas2,400 GPM
Length17 ft 0 in
Width6 ft 0 in
Height7 ft 4 in
Weight12,800 lb
1 Usage based on 85 °F maximum inlet temp. with 30 °F maximum rise.

Gas Analysis (Adjustable)
Gas Volume Percentage
Oxygen Less than 50 PPM
Methane 0.01% to 0.1%
Carbon Dioxide 8.5% to 5.2%
Carbon Monoxide 5.0% to 10.0%
Hydrogen 6.0% to 12.0%
Nitrogen Balance
Delivered Pressure 14 in W.C.
Delivered Dewpoint Approx. 100 ºF (based on 85 °F max. inlet temp.)