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DUCT FOR CONVEYING SMOKE FILLED WITH PINE ASH PARTICLES AND HAVING HEAT EXCHANGERS AND PROTECTIVE DEVICES FOR PROTECTING THE HEAT EXCHANGERS
DUCT FOR CONVEYING SMOKE FILLED WITH PINE ASH PARTICLES AND HAVING HEAT EXCHANGERS AND PROTECTIVE DEVICES FOR PROTECTING THE HEAT EXCHANGERS
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机译:输送充满烟灰颗粒的烟气的管道,并配备热交换器和用于保护热交换器的保护装置
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摘要
The present invention relates to a device for protecting heat exchangers placed in a duct (1) for smoke filled with fine particles of ash, e.g. coming from a pulverized coal boiler. The heat exchangers are constituted by parallel grids (10) each comprising a main region (A) fitted with rectilinear lengths (11) of tube extending perpendicularly to the direction of smoke movement, and two end regions (B) fitted with bends (12) and rectilinear lengths (13) of tube extending parallel to the direction of smoke movement. The protective device is constituted by parallel panels (20) which are parallel to the grids (10) of tubes, with each panel (20) being placed between two grids (10) and at each end region (B).
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