| 摘要 |
The present invention relates to a method for repairing and refurbishing catalytic heaters and to a replacement catalyst cartridge used therein. The method broadly comprises the steps of removing a face frame and a face screen from a heater frame of a catalytic heater to be refurbished, removing catalyst material from an interior portion of the heater, providing a replacement catalyst cartridge having a layer of catalyst material, and securing the cartridge to the heater frame. The replacement catalytic cartridge comprises a frame, an upper screen joined to the frame, a lower screen joined to the frame, and a layer of catalyst material positioned between the upper screen and the lower screen. The replacement catalytic cartridge also has a layer of insulation material secured to the cartridge frame, which layer of insulation material forms a gas tight seal with a peripheral lip of the catalytic heater.
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