Corrosion in boiler, Mechanical Engineering

Assignment Help:

Q. Corrosion in Boiler?

With proper BFW treatment, and maintaining pH within a certain range (9.2 to 9.4) and removing oxygen from the system, a stable passive film will be formed which prevents corrosion in boiler.

High quality BFW is required to minimize solids deposition in the boiler tubers. The TDS should be controlled by optimizing the water treatment equipment.Chelant injection, oxygen scavenger, neutralizing amine injection and water softening and filtration are considered as mandatory boiler water treatments which prevent corrosion in boiler.

High temperature oxidation of boiler tubes in radiant section can be prevented by upgrading the metallurgy. Also internal and external metal skin temperatures and flue gas temperatures shall be closely monitored to prevent overheating.

Filming amine shall be injected at a constant rate downstream of HP Steam Separator to prevent corrosion in the pipeline by inhibiting the formation of carbonic acid and forming a thin, impermeable barrier on the inner surface of the pipeline.


Related Discussions:- Corrosion in boiler

Working stress and factor for safety working stress, W orking stress and F...

W orking stress and Factor for Safety Working Stress: Working stress is safe stress taken within elastic range of material. For the brittle materials, it is taken equal to

Concept of centrifugal tension, Concept of centrifugal tension: Expl...

Concept of centrifugal tension: Explain concept of centrifugal tension in any belt drive. What is main consideration for taking maximum tension? Sol: T he belt continuo

Determine acceleration of weight, Determine acceleration of weight: Tw...

Determine acceleration of weight: Two pulleys of radii 200 mm and 400 mm are mounted co-axially and rigidly on a common-shaft. These pulleys have a overall mass of 28 kg an

Explain the scope of the angle radial drilling machine, Scope of  the angl...

Scope of  the angle  radial  drilling  machine  There  are  many  scope  of  the  angle  radial  drilling  machine  like  as:  we  shell produce a hole at any angle with help

Newton ring, What is a newton ring excrement

What is a newton ring excrement

What is subsetting, What is Subsetting Subsetting : Vendors selected an...

What is Subsetting Subsetting : Vendors selected and implemented only portions of the whole of IGES, thus making exchange between two systems impossible without  prior agreemen

Skid assemblies and modular structures, Q. Skid assemblies and modular stru...

Q. Skid assemblies and modular structures? This specification describes parameters for the design, fabrication, materials and installation of the structural steel part of skid

Constant mesh type gear box, Constant Mesh Type Gear Box : Most of the ge...

Constant Mesh Type Gear Box : Most of the gearboxes on motorcycles are "constant mesh". That means all the gears are constantly meshed with one another and are always spinning. T

K, Ask okokopkpk#Minimum 100 words accepted#

Ask okokopkpk#Minimum 100 words accepted#

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd