Here in this article, we are going to learn about the boiler light-up sequence for the operation of the power plant which we will know deeply understand prior to starting the activity of CFBC Boiler light-up (circulating fluidized bed combustion).
Prior to starting the activity of Boiler light up following activities are assumed to be completed.
Following are some important activities in brief and are to be undertaken before lighting up the boiler.
The boiler can be filled from bottom ring header or from the economizer inlet side with the help of an emergency lift pump known as ELP. Make the D.M water system ready.
Open drum vents, super heater vents, and R.H. vents. In the normal running conditions of the plant, ELP is connected to the feed storage tank (FST). Close the valve of ELP through which it is connected to FST.
Above all activities, we have seen how the Boiler is prepared for lighting up. If the purge ready signal is available then press the button on the Boiler desk designated for the start of purging of the boiler and press the switch “push to purge”.
After pressing the switch push to purge, the ‘purging’ indication appears on the desk and after 5 minutes of purge, a complete indication appears on the desk, and the Boiler trip circuit resets. Now Boiler can be lighted up.
Maintain 40 mm WCL furnace to wind box differential pressure. Maintain airflow more than
30%, select LDO or warm-up oil for a cold start. Warm up trip valve opens if the following Conditions are met.
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