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Why induced draft fan operate first instead of a forced draft fan?
The procedure for starting draft plant (fans) in a boiler is to start the ID Fan first. Remember that the purpose of the ID Fan is so that the Furnace operates at a slight vacuum. (See Related Link: FD Fan vs ID Fan.) Any casing or furnace leaks then allow air to leak in, rather than allowing air with pulverised fuel and fly ask to leak out.
What is drum boiler?
A drumless boiler is obviously a boiler without a drum. The steam is fed into a header, then into a turbine for making electricity. Quality control of the water used is of extreme importance. Since there is no water level in a drum to maintain, feedwater must be constant with no interruption of any kind. With a drum type, water feed can be interrupted for a very short time. Not so with a drumless type.
What is Ik pass in a boiler?
An IK on a boiler is a Soot Blow. It is mounted on the sidewall of a boiler furnace and cleans the internal boiler parts with high pressure.
Boiler steam pressure?
What you meant by this question is uncertain. If you are asking about the definition then Boiler steam pressure is the pressure developed by a water steam boiler, else if you are asking about the Rated boiler steam pressure then it is the safe operating pressure a boiler can operate, else if you are asking about Maximum boiler steam pressure then it is the maximum pressure that a boiler can produce with out failure.
What is an atmospheric boiler?
ATMOSPHERIC BOILERa boiler on which combustion air/flue gases are drawn through the boiler without a fan.(Taken directly from the Crown Boiler Co. web-site.)
What is the function of forced draft fan?
force draft fan is helped in producing draft. therefore, no requirement of more chimney height. with the help of forced draft we would rapidly circulated the air from boiler to chimney. this fan is mounted near the boiler bottom.
CFBC boiler operation procedure?
drum level maintain at48to52% O2 4% id draft _2to+2
In a coal fire boiler with a balanced draft system the pressure over the fire should be approximately -.02 -.05 plus .2 plus .5?
-.2
What is draft in boiler?
when the weight of warm air in the stack is less than the cool air around the stack , it causes an upward flow pulling air thru the furnace
What is draft in a boiler?
when the weight of warm air in the stack is less than the cool air around the stack , it causes an upward flow pulling air thru the furnace
Forced draft fan vs induced draft fan?
In a balanced draft boiler, you actually have both: forced draft (FD) fans supplying air to the furnace, and induced draft (ID) fans removing flue gas. Typically, the FD fans control airflow, while ID Fans control furnace pressure to slightly below atmospheric pressure. In general though, the choice between forced draft and induced draft is based on how "tight" the system is - if you have leaks, it is better to use ID, as FD will cause product loss.
What is natural draft in a boiler?
when the weight of warm air in the stack is less than the cool air around the stack , it causes an upward flow pulling air thru the furnace
Why induced draft fan operate first instead of a forced draft fan?
The procedure for starting draft plant (fans) in a boiler is to start the ID Fan first. Remember that the purpose of the ID Fan is so that the Furnace operates at a slight vacuum. (See Related Link: FD Fan vs ID Fan.) Any casing or furnace leaks then allow air to leak in, rather than allowing air with pulverised fuel and fly ask to leak out.
What is Auxiliary Boiler?
An auxiliary boiler is a secondary boiler used to support the main boiler in a steam power plant or marine vessel. It is often used when the main boiler is unable to meet the steam demands, providing additional steam capacity. Auxiliary boilers can also be used for heating purposes during maintenance or downtime of the main boiler.
Define boiler and classification of boiler?
Boiler can be classified as below
The pilot of your boiler goes off after the water is heat?
Bad thermo couple Spillage (Down draft) Not enough free air for proper combustion Pilot light needs ajdustment
What is afbc boiler?
Atmospheric Fluidized Bed Combustion Boiler (AFBC boiler) is a type of operational boiler. In a AFBC boiler a little more fluidized bed combustor is added than a conventional shell boiler.
