Design and Application of Novel Horizontal Circulating Fluidized Bed Boiler

Lit, Q. H.; Zhang, Y. G.; Meng, Ai Hong

doi:10.1007/978-3-642-02682-9_27

Cited by 4 publications

(1 citation statement)

References 4 publications

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“…The structure and arrangement of the air nozzle have a significant impact on the flow in the furnace. Irrational design of air nozzles could lead to operating accidents, such as bad fluidization [8][9][10] or bed material blocking [11,12]. Therefore, reasonable air nozzle structure and pressure drop are essential to keep the CFB boiler operating well [13].…”

Section: Introductionmentioning

confidence: 99%

Experimental and CFD Simulation Studies on Bell-Type Air Nozzles of CFB Boilers

2019

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In this paper, a new bell-type air nozzle, which overcomes the structural defects of traditional bell-type air nozzles, is proposed and validated by cold test and numerical simulation. The pressure drop characteristic of the new bell-type air nozzle is measured. Furthermore, the causes of cover outlet abrasion and blockage, inner tube fracture, and irregular resistance change in traditional bell-type air nozzles applied in circulating fluidized bed (CFB) boilers are analyzed. Then, the performance of the new bell-type air nozzle is evaluated in a real CFB boiler, which is operated under regular working conditions. The results show that the new bell-type air nozzle has stronger anti-wear ability, excellent resistance characteristics, longer service life, and easier maintenance.

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