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Protective device for heat exchangers placed in fine ash particles-laden smoke duct
Protective device for heat exchangers placed in fine ash particles-laden smoke duct
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机译:换热器的保护装置,该换热器位于装有细灰粒的烟管中
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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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