Today we are going to popularize the knowledge of boiler such as Oil Fired
Hot Air Boiler China:
What is the circulation ratio of circulating fluidized bed boiler? What
are the operating factors that affect cycle times?
There are many operating factors influencing the cycle rate, mainly including
the following aspects:
The efficiency of separator, fuel granularity, fuel content, fuel
composition, ash characteristics, and abrasive characteristics of ash particles
have a decisive influence on the recycling rate.
Influence of boiler load. With the reduction of unit load, that is, reduction
of boiler evaporative capacity, the overall air volume and flue gas flow rate of
the boiler will inevitably decrease, and the CFB boiler circulation rate will
also decrease accordingly.
2. Why should the economizer recycling door be closed when the drum boiler
such as Horizontal Electrical Steam Boiler is in normal operation?
As the feed water enters the drum directly through the coal economizer
recirculation pipe, the temperature of furnace water in local area is reduced,
the separation of steam and steam quality is affected, and the metal at the
junction between the recirculation pipe and the drum is subjected to temperature
stress, which may lead to cracks after a long time. In addition, it also affects
the normal operation of the economizer, making the outlet temperature of the
economizer too high, so in normal operation, the economizer recycling door must
be closed.
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