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130TPH Circulating Fluidized Bed Boiler Drying Out

130TPH Circulating Fluidized Bed Boiler Drying Out

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  • Time of issue:2021-06-09
  • Views:3600

(Summary description)

130TPH Circulating Fluidized Bed Boiler Drying Out

(Summary description)

  • Categories:company news
  • Author:
  • Origin:
  • Time of issue:2021-06-09
  • Views:3600
Information

Boiler Drying Out is necessary before the new boiler is put into production. 130t/h CFB boiler adopts high-temperature flue gas drying method, providing experience for CFB boiler drying out of other power plant.

130t/h CFB boiler features rated steam pressure 9.81MPa, steam temperature 540°C, feed water temperature 215°C, and flue gas temperature 140°C. The boiler adopts natural circulation, single-drum, open-air layout, centralized large-diameter downcomer, and full-membrane wall suspended closed structure. Water-cooled air distributor and air chamber; suspended and full-membrane water-cooled cyclone separator. Superheater is convection and radiation type, with two-stage spraying desuperheater; economizer is two-stage arrangement; air preheater is horizontal channel box.

Water-cooled cyclone separator adopts membrane wall, and is welded pins on inner wall, and casted 60mm thick high-temperature wear-resistant lining. The thickness of furnace wall reduces from 300~400mm to 50~60mm, thus the start-up has no limit. Cold start-up is 3-4 hours and warm start-up is 1~2 hours, which saves the cost of starting fuel. The service life of furnace wall in water-cooled cyclone separator is over 5 years, which reduces operation and maintenance cost

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