BOILER visit report

8/13/2019 BOILER visit report

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Visit Report Rakhoh Boiler

Dear Sir:

Following are the details for 9 days training conducted at Rakhoh Boiler.

Visited By:

Sanket S Koyate

Projects and Marketing

9! 9"#9#9$"%"[email protected]

Project Details:

Company Name:

Rakhoh enterprises, Pune

Rakhoh Boiler&

S'!!& (' Block& M)D*Bhosari '+!!%$"

Pune.

Name of Project:

Visit Report to Rakhoh Boilers

Location& Date when isite!:

Bhosari& Pune

"#,"$,%",%%,%,%$ No an! '%,'(,' Dec %'"(

Project Coor!inator Name:

Mr. ,ikhil Patil

Marketing De-artent
mailto:[email protected]:[email protected]


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Visit Details:

Following is the details of 9 days /isit to Rakhoh Boilers and also F01 which isunderstood

D02 !

(ie: !!.3% to !4.3%

5n !#6!!6$%!3 ) /isited to Rakhoh Boilers& for the -ur-ose of 9'!% days training to learn

the conce-ts of 7oilers. 0s Mr. ,ikhil was on site /isit he was not a/aila7le. So& ) etMr. *haughule who is ser/ice engineer in the co-any. 8e referred Mr. Sharan who took

e to the anufacturing unit where any ty-es and sies of 7oiler where -re-ared. Mr.

Sharan was ser/ice engineer with e-erince& so he e-lained according to his knowledge.

8e showed 0P8 i.e. air -reheater& furnace& inner noles of furnace. ) found it /eryinteresting and soe ;uestions were unanswered as he was ser/ice engineer with less

than a year of e-erience. First day of /isit was less -rofita7le. ) learnt any things and

soe things which were taught 7y Mr.


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5n $!6!!6$%!3 Mr. ,ikhil Patil was a/aila7le in office and he hel-ed e understanding

any conce-ts related to 7oilers. 8e e-lained e e/ery ;uestion of ine with drawings

where/er re;uired. 0lso when on sho- floor Mr. (ushar fro -roduction de-artente-lained e conce-ts of 7oiler. (here were lifters fro 4 ton to $% ton ca-acity. @/ery

achine was a/aila7le such as -ress achine& drill achine& welding achine& etc

Day +

(ie: !!.3% to !".3%

5n $$6!!6$%!3 Mr. ,ikhil cleared e conce-ts of husk consu-tion& 7oiler efficiency&

0nnual fuel cost etc. 8e e-lained e 0uto*0D Drawings where/er necessary.

Day 4(ie: !!.3% to !4.3%

0s there was office work for drawings of Mr. Mag7ul Mir ) did not attend training for $

days. 5n $"6!!6$%!3 Mr. ,ikhil was not a/aila7le. ) was on sho- floor with trainee ofRakhoh Mr. Sagar& where he showed e different ty-es of de-artent of Rakhoh such as

Design& Production& Marketing& etc.

Day " A Day =

(ie: !3.+% to !=.3%

5n $96!! A %$6!$6$%!3 ) was at design de-artent of Rakhoh where ) learnt the any

conce-ts in the foundation layout drawings of Boiler fro the -ersons of the design

de-artent.

Day #

(ie: !!.3% to !".3%

5n 36!$6!3 ) was on sho- floor looking out for different -rocesses like -ressing& rolling&

welding. 0lso saw the ongoing work for insulation aterial which is like ceent.

Day 9

(ie: !3.3% to !=.3%

5n %"6!$6!3 ) was on sho- floor for final re/ision of whate/er ) learnt and also was going

through y notes which ) -re-ared. ) learnt any things related to Boiler and this

training was useful


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FAQ BOILR

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- Sanket S Koyate

!" #hat is Boiler$

Boiler is a closed /essel in which soft water is heated 7y any 7urna7le fuel which

gi/es saturated stea.

%" #hat is F.D Fan$

F.D. fan is used for forcing -ressure into furnace. Forced draft fan is used to

create -ositi/e -ressure. Fan te-erature is around 3% degree *elsius.

&" #hat is ID Fan$

)nduced draft fan is to transfer flue gases fro furnace to chiney. Fan

te-erature is around $%% degree *elsius. )t created negati/e -ressure.

'" #hat is (l)idi*ed +ed co,+)stion$

Fluidied 7ed co7ustion e-loys a distri7utor -late& a 7ed of sand. (he 7ed of

sand is ke-t fluidied state 7y the FD fan. 0 P0 fan is used to trans-ort and inject

the rice husk into the 7ed. (he 7ed of sand is initially heated 7y charcoal 6 or rice

husk. 5nce the sand is heated and aintained in fluidied condition& the rice husk

is continuously injected to aintain the co7ustion and to gi/e the heat re;uired

for generating the stea in the 7oiler. (he ash after co-lete co7ustion lea/es


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the 7ed and gets collected in ash ho--ers of the 7oiler A in the dust collector. 0n

)D fan is used to aintain the negati/e draft in the furnace. Pollution is the 7ig

issue here. 5ne should ha/e -ro-erly designed A installed MD* cones.

-" Role o( ater so(tener$

)t reo/es the hardiness >calciu& Magnesiu? in raw water >hard water? and

changes the hard water to the soft water.

)f the water contains hardness& the hardness is condensed in the 7oiler as heating

7ecoes scale foration and it then adheres inside the water tu7es. (hen heat

efficiency declines 7ecause of the scale adhesion.

/" #hat is IBR$

)ndian Boiler Regulations& which has created in !94% in eercise of -owers&

conferred 7y section $# and $9 of the )ndian Boiler 0ct. )t was fored to

consolidate and aend the law relating to stea 7oilers.

0" #hat are +oiler ,o)ntin1s$

Boiler ountings are generally ounted on the 7oiler for safety o-erations

-ur-ose.

Different ountings are Cater le/el indicator& safety /al/e& -ressure gauge& steasto- /al/e& Feed check /al/e& Manhole& etc

2" #hat are +oiler accessories$

(his is de/ice which is installed with a 7oiler. )t is used to increase efficiency of

the 7oiler.

Different ty-es of accessories are Feed water -u-& injector& -ressure reducing

/al/e& air -reheated& su-er heater& econoier& stea drier6se-arator& etc

#? 3ypes o( +oiler s)pplied +y Rakhoh 4o,pany

a? Bio'dru co'generation 7oiler

7? Bi'dru D ty-e high -ressure 7oiler

c? Solid fuel fired internal furnace


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d? 5il6Eas fired 7oiler

e? Multi fuel eternal furnace + e7rane wall >fluidied 7ed?

f? Package ty-e twin furnace 7oiler

g? 8usk fired -ackage ty-e 7oiler

h? Boiler for sall industry

i? Caste heat reco/ery unit

j? (heric Fluid heater

k? *oded -ressure /essel

5" #hat is (ired t)+e +oiler$


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0 fire'tu7e 7oiler is a ty-e of7oilerin which hot gases fro a fire -ass through

one or ore tu7es running through a sealed container of water. (he heat of the

gases is transferred through the walls of the tu7es 7y theral conduction&heating

the water and ultiately creating stea.

%!" #hat is ater t)+e +oiler$

0 water tu7e 7oileris a ty-e of7oilerin which water circulates in tu7es heated

eternally 7y the fire. Fuel is 7urned inside the furnace&creating hot gas which

heats water in the stea'generating tu7es. )n saller 7oilers& additional generatingtu7es are se-arate in the furnace& while larger utility 7oilers rely on the water'

filled tu7es that ake u- the walls of the furnace to generate stea.
http://en.wikipedia.org/wiki/Boilerhttp://en.wikipedia.org/wiki/Heathttp://en.wikipedia.org/wiki/Thermal_conductionhttp://en.wikipedia.org/wiki/Steamhttp://en.wikipedia.org/wiki/Boiler_(steam_generator)http://en.wikipedia.org/wiki/Furnace#Industrial_furnaceshttp://en.wikipedia.org/wiki/Steamhttp://en.wikipedia.org/wiki/Boilerhttp://en.wikipedia.org/wiki/Heathttp://en.wikipedia.org/wiki/Thermal_conductionhttp://en.wikipedia.org/wiki/Steamhttp://en.wikipedia.org/wiki/Boiler_(steam_generator)http://en.wikipedia.org/wiki/Furnace#Industrial_furnaceshttp://en.wikipedia.org/wiki/Steam


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%%" #hat is ' pass in +oilers$

0s indicated in drawing three'-ass wet7ack design has a rear water wall& whichse-arates the -riary heating surface of the co7ustion cha7er fro rear tu7e

sheet. (he water jacket eliinates the need for a refractory wall and rear door s-acing

7ehind the 7oiler& as well as costly refractory aintenance.

(he rear wall eliinates the need for gasketing & which is /ulnera7le to the

te-erature generated in the rear of the turnaround area. )t has great o/erall

efficiency.

%&" #hat is 6eat 7chan1er$


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sed for heat transfer fro one ediu to another ediu. (his edia ay 7e

se-arated 7y solid walls to -re/ent iing or they ay 7e in direct contact.

Cidely used in s-ace heating& refrigeration& air conditioning& -ower -lants&

-etroleu& natural gas -rocessing. Mostly shell and tu7e ty-e is used.

%'" 3ypes o( chi,neys in Boiler$

a? Self su--orted chiney

7? Structural su--orted chiney

c? Ro-e su--orted chiney

d? Call Su--orted chiney

%-" 6o to calc)late ()el operatin1 cost$

Fuel 5-erating *ost G Fuel *onsu-tionHFuel *ostH!.%$

Chere& !.%$ is considered as electricity A other factors in -roduction.

%/" 6o to calc)late ann)al cost o( F)el$

0nnual Fuel *ostG Fuel *ost6hr H ,o of hrs6day H ,o of days6yrs


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%0" 8o,e de(inition (or +oiler accessories$

(he de/ice which are installed with a 7oiler A used to increase efficiency of

7oiler.

>a? Feed #ater P),p:

(o feed water to 7oiler.

>7? Injector:

(5 feed water under -ressure.

>c? Press)re red)cin1 9al9e:

(he function of -ressure reducing /al/e is to aintain constant -ressure ondeli/ery side of the /al/e irres-ecti/e of the fluctuating su--ly of stea fro

7oiler.

>d? Air Pre heater:

(o heat the air 7efore it enters the co7ustion cha7er.

>e? 8)per heater:

sed in stationery 7oiler. Function is to con/ert dry saturated stea into

su-erheated stea at the desired te-erature. )t is used to increase thete-erature of saturated stea without raising its -ressure.

>f? cono,i*er:

*onsidera7le aount of heat of the -lant is carried away 7y flue gases& so to

utilie this waste heat. 0n econoier is -laced in the -ath of flue gases to

-reheat the feed water. 0n econoier increases the stea raising ca-acity of

a 7oiler.

>g? 8tea, drier or separator:

(o se-arate the water -articles fro stea 7efore it is su--lied to the -oint of

a--lication

%2" #hat is 9apori*ation$

)t is -hase transition fro li;uid -hase to gas -hase.


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%" 8o,e de(inition (or Boiler ;o)ntin1s:

a? #ater Le9el Indicator: )ndicates eact water le/el of 7oiler tu7e.

7? 8a(ety 9al9e: Mechanical de/ice used as safeguard for 7oiler& in case the

-ressure inside the 7oiler rises a7o/e its noral working atos-here.

c? Press)re


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c? 8igh > More than #% 7ar ?

Accordin1 to so)rce o( heat:

a? Cater (u7e Boiler

7? Fired (u7e Boiler

$%? Eeneral naes for the different -arts of 7oiler

)hat are the stren*ths, opportunities within the Rakhoh Company+ )hat posities !i!you notice !urin* your isit+

(here were different -eo-les for different de-artent such as design& -roduction whichade there work easy. Marketing de-artent was technically sound. . @/ery 7oiler and

its other -arts were anufactured with accuracy. @/ery -art was checked 7y aking

asse7ly of it with res-ecti/e -art. (he fa7rication work and the welding were done well.

(he finishing work like grinding& coloring was done with care. Positi/es ) noticed were


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they were ha/ing good e-erience of -re-aring different ty-es of 7oiler& which were good

for us& so their e-erience would create no istakes while 7oiler is anufactured.

Post=project Visit:

ae you contacte! the project coor!inator after your isit+2es& ) ha/e contacted Mr. Eurjar Sir and Mr.


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Documents

BOILER visit report