Boiler layout engineering

BOILER LAYOUT
ENGINEERING
In Indian Scenario
10/4/2017 boben2005@gmail.com

PRODUCT ENGINEERING (FOSSIL BOILERS)
IMPROVEMENTS DONE IN BOILER LAYOUTS
• REDUCTIONOF BOILERCOLUMNS IN 500 MW CONTRACTS. 53 COLUMNS PROVIDEDIN
RAMAGUNDAMUNIT7, REDUCED TO 43 Nos IN KAHALGOAN & TO 39 Nos IN BELLARY.
• INTEGRATION OF LIFT STRUCTUREWITH BOILER STRUCTUREAS AGAINST STAND-ALONE
STRUCTUREEARLIER.
• WIDER SPACING OF BOILER MAINCOLUMNS (From Boiler centre line ) FOR BETTER ACCESS
SPACE.
• FIRST 250 MW DESIGNED WITH 7 BOWL MILLS WITH REARMILL ARRANGEMENT & WITH
UNSYMMETRIC ARRANGEMENT OFMILLS{ 4 NOS ONLEFT SIDE & 3 NOS ONRIGHT SIDE
WITH A CENTREGAP} FOR KORBA 2x 250 MW

PRODUCT ENGINEERING (FOSSIL BOILERS IMPROVEMENTS
DONE IN BOILER LAYOUTS
• RETROFIT OF ECONOMISER COIL HANDLING
• IMPROVEMENT OF BRACING PATTERN ON THE REAR SIDE OF THE BOILER
FOR ECONOMISER COIL HANDLING.
• RELOCATION OF GATES IN THE ECONOMISER BYPASS DUCTS FOR
ECONOMISER COIL HANDLING .
• OPTIMIZATION OF DAMPERS IN THE AIR DUCTS TO AIR PREHEATERS.
• LAYOUT FOR THE TWIN REHEATER HEADERS FOR 500 MW NEW CONTRACTS.

REGULAR ARRANGEMENT OF BOILER COLUMNS FOR
RAMAGUNDAM 500 MW UNIT 7 (53 NO OF COLUMNS)

OPTIMIZED BOILER COLUMN LOCATION FOR KAHALGAON 500 MW
(43 NOS OF COLUMNS)

OPTIMIZED ARRANGEMENT OF BOILER COLUMNS FOR
BELLARY 500 MW UNIT (39 NO OF COLUMNS)

DESIGN IMPROVEMENT IN THE BOILER LIFT
STRUCTURE

DIMEMSIONAL DETAILS OF BOILER COLUMNS FOR
KAHALGOAN 500 MW

SUMMARY OF BOILER COLUMN SPACING IN CURRENT 500
MW UNITS
CONTRACT NAME NO OF
COLUMNS
SPACING OF BOILER MAIN
COLUMNS FROM BOILER CENTRE
LINE
RAMAGUNDAM 500
MW UNIT 7
53 NOS 13 M
KAHALGOAN 500 MW 43 NOS 15.5 M
BELLARY 500 MW 39 NOS 14.5 M

BELLARY TPS 1 x 500 MW BOILER
SALIENT FEATURES OF BOILER LAYOUT
• SIDE MILL LAYOUT.
• 7 NUMBERS OF XRP 1003 BOWL MILLS
• WIDER MAIN BOILER COLUMN PITCHING AT 29 MTRS.
• TRISECTOR REGEN AIRHEATER 31.5 VIM(T) 2000 - USED IN THIS
CONTRACT

• LARGE MAN HOLE DOOR(1.8 x 0.9 Mt) ENVISAGED IN PENT HOUSE
FOR MAINTANECE.
• CL ELEVATION OF RING HEADER = 10.25 Mtrs.
• CL ELEVATION OF DRUM = 70.608 Mtrs.
• BOTTOM OF THE CEILING GIRDER = 78.550 Mts.

GA OF BOILER
SECTIONAL ELEVATION

GA OF BOILER
SECTIONAL PLAN

BOILER COLUMN
LOCATION WITH
MAIN
AUXILIRIES

KEY PLAN OF BOILER AND ID SYSTEM

LAYOUT OF ID SYSTEM - ELEVATION

LAYOUT OF ID SYSTEM - PLAN

SALIENT FEATURES OF KORBA 2 x 250 MW UNITS
1. FIRST 250 MW UNIT WITH SEVEN BOWL MILLS WITH
REAR MILL LAYOUT.
1. MILLS LOCATED UNSYMMETRICALLY ABOUT THE
BOILER AXIS : 4 NOS ON THE LEFT SIDE & 3 NOS ON THE
RIGHT SIDE WITH AN EMPTY BAY AT THE CENTRE

GENERAL ARRANGEMENT DRAWING SIDE ELEVATION: KORBA
2 x 250 MW

KORBA 2 X 250 MW SECTIONAL PLAN

KORBA 2 x 250 MW : I.D SYSTEM SECTIONAL
ELEVATION

KORBA 2 x 250 MW : I.D SYSTEM PLAN

Structure for handling of Eco. Coils from Zero mtr. to 43.5 mtrs.

Replacement work of Eco. Bank in Unit#4

Eco. Coil shifting to the position

Manual handling arrangement for insertion and removal of Eco. Coils from platform to
inside the boiler

VINDYACHAL
UNIT Nos. 7 & 8
(NO HANDLING
ENVISAGED)
WITH PERMANENT
BRACING

SIMHADRI
WITH REMOVABLE
BRACING

TALCHER 4X500MW
WITH POST

KAHALGAON 2X500MW
OPEN
WITHOUT POST AND
BRACINGS

EARLIER ARRANGEMENT
WITH GATES HINDERING
THE ECONOMISER COIL
WITHDRAWAL

MODIFIED ARRANGEMENT
OF GATES TO
FACILITATE THE EASY
WITHDRAWAL OF
ECONOMISER COILS

B – BIPLANE DAMPER
L – LOUVER DAMPER

LAYOUT OF SINGLE HRH HEADER

NEW LAYOUT WITH TWIN HRH HEADER

MODIFIED ROUTING OF HRH PIPING
OLD ARRANGEMENT MODIFIED ARRANGEMENT

Any Quires boben2005@gmail.com10/4/2017 boben2005@gmail.com

Boiler layout engineering

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Boiler layout engineering