. Railway mechanical engineer . Chas. P. Patrick, 3rd Boiler Makers Association Thomas Lewis, 4th Boiler Makers Association T. P. Madden, 5th Boiler Makers Association that the pipe is run under the unit pipes, and pulled backand forth until the flue is cleaned. The best time to cleanthe superheater flues is, of course, at the washout periodwhen the engine is cool, but this depends upon the grade ofcoal used, for with the use of some coal it is necessary toblow and clean them each trip. As it is not necessary to remove the superheater tubes at
. Railway mechanical engineer . Chas. P. Patrick, 3rd Boiler Makers Association Thomas Lewis, 4th Boiler Makers Association T. P. Madden, 5th Boiler Makers Association that the pipe is run under the unit pipes, and pulled backand forth until the flue is cleaned. The best time to cleanthe superheater flues is, of course, at the washout periodwhen the engine is cool, but this depends upon the grade ofcoal used, for with the use of some coal it is necessary toblow and clean them each trip. As it is not necessary to remove the superheater tubes atthe end of the three-year period in order to comply with thelaw, if the boiler can be cleaned and inspected, it is recom-mended by many railroads that the superheater flues bewelded at the fire-box end. The tubes can be (leaned on theoutside or water side while in the boiler by the use of scrap-ing rods and liars, pneumatic flue cleaners, and sometimes byheating the flues. When it is necessary to safe end superheater flues, man
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectrailroadengineering
