Why Boiler Blow-down Is Required?

1.	Why Boiler Blow-down Is Required?
Answer» As the FEED water evaporate into steam, DISSOLVED solids concentrate in the boiler. Above certain level of concentration, these solids ENCOURAGE carryover of water into steam. This leads to scale FORMATION INSIDE the boiler, resulting in localized overheating and ending finally in tube failure. Hence blow-down is very much required for boilers. As the feed water evaporate into steam, dissolved solids concentrate in the boiler. Above certain level of concentration, these solids encourage carryover of water into steam. This leads to scale formation inside the boiler, resulting in localized overheating and ending finally in tube failure. Hence blow-down is very much required for boilers.

Answer»

As the FEED water evaporate into steam, DISSOLVED solids concentrate in the boiler. Above certain level of concentration, these solids ENCOURAGE carryover of water into steam. This leads to scale FORMATION INSIDE the boiler, resulting in localized overheating and ending finally in tube failure. Hence blow-down is very much required for boilers.

As the feed water evaporate into steam, dissolved solids concentrate in the boiler. Above certain level of concentration, these solids encourage carryover of water into steam. This leads to scale formation inside the boiler, resulting in localized overheating and ending finally in tube failure. Hence blow-down is very much required for boilers.

Discussion

No Comment Found

Related InterviewSolutions

Explain The Reasons For Carrying Out “blow Down” In A Boiler?
Write Short Notes On ‘intermittent Blow Down’ And ‘continuous Blow Down’ With Respect To Boilers?
Describe ‘chain Grate’ And ‘spreader Stoker’ Type Boiler?
What Are The Various Methods Available To Control The ‘excess Air’ In A Boiler?
Briefly Explain The Principle Involved In ‘reverse Osmosis’?
What Are The Two Main Classification Of A Stoker Fired Boiler?
What Are The Salient Features Of A ‘packaged Boiler’?
Explain The Different External Water Treatment Methods?
List Out The Data Required For Calculation Of Boiler Efficiency Using ‘indirect Method’?
What Are The Disadvantages Of ‘direct Method’ Of Boiler Efficiency Evaluation Over ‘indirect Method’?