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“Preparation of general arrangements engineering drawings of energy efficient typical top fired
pusher hearth re-heating furnace with furnace oil firing”
for the project
“Upscaling energy efficient production in small scale steel industry in India”
Submitted to:
United Nations Development Programme
55, Lodhi Estate, New Delhi 110003
Submitted by:
Mr. V. B. Mahendra,
Director
ENCON Thermal Engineers (P) Ltd.
Submission on:
10th May, 2014
1
ABBREVIATIONS:
mm millimeter tph tonne per hour kg/h kilogram per hour l litre l/h litre per hour l/t litre per tonne nm3/h Normal cubic meter per hour kW kilo watt NB nominal bore mmWC millimeter of water column Rs. Indian Rupee
2
CONTENTS
EXECUTIVE SUMMARY………………………………………………………………………………………………4
1. INTRODUCTION………………………………………………………………………………………………...5
2. FURNACE DESIGN PARAMETRERS……………………………………………………………………..5
3. ENERGY EFFICIENT MEASURES IN THE RE-HEATING FURNCAE……………………….10
4. COST CONSIDERATION…………………………………………………………………………………….11
5. PERFORMANCE INDICATORS AND PAY-BACK…………………………………………………..11
6. GENERAL ARRANGEMENT DRAWING: LAYOUT & AUXILIARY…………………………..13
7. GENERAL ARRANGEMENT DRAWING: STRUCTURAL………………………………………..14
8. GENERAL ARRANGEMENT DRAWING: PIPING NETWORK ………………………………..15
9. GENERAL ARRANGEMENT DRAWING: REFRACTORY LINING……………………………16
10. P & I DIAGRAM………………………………………………………………………………………………...17
11. SINGLE LINE DIAGRAM……………………………………………………………………………………18
12. GENERAL ARRANGEMENT DRAWING: RECUPERATOR…………………………………..…19
13. GENERAL ARRANGEMENT DRAWING: CHIMNEY……………………………………………...20
LIST OF TABLES
Table 1: Design parameters of the furnace ......................................................................................... 6
Table 2 : Productivity of the furnace for MS billet heating ................................................................ 6
Table 3 : Broad dimensions of the furnace .......................................................................................... 7
Table 4 : Details of combustion system ............................................................................................... 7
3
EXECUTIVE SUMMARY
UNDP in association with Australian Aid Programme & Ministry of Steel, Government of
India is implementing a project titled “Upscaling energy efficient production in small
scale steel industry in India”. The objective of this project, which was launched in July
2013, is to scale-up adoption of energy efficient technologies in small scale steel
industry in India. In line with project’s continuous endeavor to provide inputs on energy
conservation, a typical design of re-heating furnace, based on pulverized coal as fuel,
was developed.
Re-heating furnace was designed based on most commonly prevailing operational
practices in small scale steel industry in India. The basic design has been carried out
considering “state of the art” technology and accessories. The capacity for design was
considered as 15 tph as it was the mean average of varying capacity of re-heating
furnaces in small scale steel industry in India and to provide inputs to larger section of
the sector on ideal scenario. The overall designing and development of general
arrangement drawings were done by aiming the best possible specific furnace oil
consumption of 32 l/t. Further consideration on design of various systems of re-heating
furnace is depicted in below table.
Parameter Design consideration
Heat load & location of burners
To attain temperature of 1250 OC in soaking zone &
heating zone-1 and 850 OC in preheating zone
(unfired zone)
Combustion air supply system To achieve flow of 7,000 nm3/h & discharge
pressure of 1,000 mmWC
Flue gas system To overcome hydraulic resistance of its path &
attain required draft
Waste heat recovery system To achieve combustion air temperature of 400 OC
after waste heat recovery system
Refractory & insulation
To attain skin temperature of furnace close to
ambient temperature and to achieve targeted
specific fuel consumption
4
As compared to conventional furnace oil fired furnace, this energy efficient furnace
would ensure saving of atleast 8 l/t in specific furnace oil consumption. And such saving
is projected by incorporating various energy conservation measures in re-heating
furnace viz. installation of PID controller system for air fuel control ratio in soaking zone
& heating zone-1 and on-off control system in heating zone-2, waste heating recovery
system, optimum refractory & insulation etc. Overall investment for installing energy
efficient furnace is arrived at by considering prevailing market rates for various
equipment, structural steel & civil works. It is estimated that the investment for re-
heating furnace can be recovered in 26 months and such calculation is done by
considering difference in specific fuel consumption of conventional furnace & energy
efficient furnace.
5
1. INTRODUCTION
1.1 Background:
UNDP in association with Australian Aid Programme & Ministry of Steel,
Government of India is implementing a project titled “Upscaling energy efficient
production in small scale steel industry in India”. The objective of this project, which
was launched in July 2013, is to scale-up adoption of energy efficient technologies in
small scale steel industry in India.
The project seeks to facilitate the diffusion of energy efficient low carbon
technologies in the Steel Re-rolling Mill (SRRM) sector to bring down end-use energy
level, improve productivity and cost competitiveness, and to reduce associated
emissions of Green-House Gases (GHG) and related pollutant levels. There exists
enormous potential for energy efficiency measures in the existing units and the new
units. Almost 70% of the energy (thermal energy) is consumed in re-heating furnace.
Thus the re-heating furnace forms the key area for energy efficiency intervention in a
typical SRRM unit.
Considering a large potential for energy conservation in the SRRM sector, the
project has identified a number of energy efficient technology options & packages,
suitable for implementation in the small and medium scale SRRM sector. One of the core
objectives of this project is to create an access for adopting energy efficient technologies
for the SRRM units.
In view of the above, general arrangement drawings (with dimensions) for
typical energy efficient furnace with furnace oil as fuel has been prepared, which will
help to proliferate energy efficiency measures by extending support & facilitating
knowledge inputs to the SRRM units and allow them to adopt energy efficiency in re-
heating furnace area.
2. FURNACE DESIGN PARAMETRERS 2.1 Design criteria:
A capacity of 15.0 TPH has been considered for designing the furnace. Nominal
capacity of the furnace is related to (i) Size of the billets, (ii) Discharge temperature, (iii)
Permitted temperature gradient across the billet height, (iv) Type of material (thermal
conductivity) and (v) Heating regime. Therefore, the furnace has been designed taking
6
into consideration, certain typical operational practices prevailing in the SRRM sector.
The basic design data considered are as below:
Table 1: Design parameters of the furnace
Sl. No. Parameter Unit Dimension
a. Design capacity of the furnace tph 15
b. Biller cross-section mm 100X100X1500
c. Material - MS Grades
d. Discharge temperature OC 1100.
e. Permissible temperature
gradient from top to bottom
OC < 30
f. Fuel - Furnace oil with the following
composition by weight (%):
C=84.7; H2=11.7; O2=0.8; N2=0.4;
S=0.4; Water content=0.2%
2.2 Discharge Capacity of the Furnace:
Depending up on the variations of the input parameters, the discharge capacity
can be higher or lower than the specified 15 TPH, as mentioned in table 2.1 below:
Table 2 : Productivity of the furnace for MS billet heating
Billet CS,
mm
Produ
ction
rate,
t/h
Dischar
ge
temp, OC
Temp
grad, OC
Heating regimes, OC
Pre heating Heating Soaking
100X100 15.5 1,130 15.0 850 to 1,050 1,150 to 1,250 1,230 to 1,240
100X100 18.5 1,117 25.6 850 to 1,050 1,150 to 1,250 1,230 to 1,240
125X125 15.5 1,130 21.6 850 to 1,050 1,150 to 1,250 1,230 to 1,240
1 125X125 18.5 1,101 38.0 850 to 1,050 1,150 to 1,250 1,230 to 1,240
7
The furnace can also be used for heating of alloy and SS grades. However, in such
case production capacity will be lower.
2.3 Broad dimensions of the furnace:
The broad dimensions of the furnace are given below:
Table 3 : Broad dimensions of the furnace
Sl. No. Parameter Unit Dimension
1. Overall length of the furnace m 20.23
2. Effective length of the furnace m 17.38
3. Length of the soaking zone m 3.20
4. Length of the heating zone (two control zones
heating Zone-1 = 4.0 & heating Zone-2 = 3.6) m 7.6
5. Length of the pre-heating zone m 6.58
6. Overall width of the furnace m 4.982
7. Inside width of the furnace m 3.6
8. Height of the roof above the hearth
At soaking & heating zones
At pre-heating zones (unfired zone)
mm
1,250
850
2.4 Type of roof: Flat roof with hanger bricks 2.5 Combustion system:
The combustion system is divided into three zones viz. soaking zone, heating
zone and pre-heating zone. Details are below:
Table 4 : Details of combustion system
Sl. No. Parameter
1. Total heat load as per the heat balance: 510 kg/h of furnace oil
2. Designed heat load : 600 kg/h of furnace oil
8
Sl. No. Parameter
3. No. of burners:
Soaking zone: 4 (Size: 45 l/h )
Heating zone-1: 6 (Size: 40 l/h )
Heating zone-2: 4 (Size: 40 l/h )
4. Location of the Burners:
Soaking zone : On the discharge end wall
Heating zones: On the side walls; 5 burners on each side with staggering
arrangement.
5. Types of burners: IIP ENCON Film burners have been considered which
works on low excess air with a large turn down ratio. They have a long and
bushy flame which is most suited to such applications. In general, a saving of
5%-10% in such applications can be achieved over the normal LAP burners
6. Combustion air supply: Combustion air will be supplied by a centrifugal fan
of below specifications:
Capacity of the fan: 7,000 nm3/h
Discharge pressure: 1,000 mmWC
Motor capacity: 35 kW
7.
Pipelines: Pipelines for supply of combustion air are designed with sufficient
reserve capacity so that pressure drop will meet the blower discharge
capacity. Pipeline layout is done for easy access to orifices and control valves.
The dimensions for various pipelines are as follows
Air pipeline (main header): 600 NB
Air pipeline (branch pipes for burners): 1. soaking zone: 300 NB
2. heating zone-1: 350 NB
3. heating zone-2: 250 NB
Oil pipeline (main header): 40 NB
Oil Pipeline (branch pipes for burners): 25 NB
8. Flue system: Exhaust system for evacuating flue gases is designed taking
into account the hydraulic resistance of the flue path, as envisaged in the
general layout.
Flue port is taken from the roof and the flue line will be above the ground
9
Sl. No. Parameter
level. The flue duct before the recuperator is insulated with ceramic fibre
board inside for minimizing heat loss.
For 15 tph furnace, the dimensions of flue duct is :
Circular 1,250 mm Dia
The chimney has been designed considering pollution control norms’. The
broad dimensions of the chimney are as follows:
Height : 33,000 mm; Dia:1,000 mm
9. Waste heat recovery: Waste heat recovery is done through a convective
type two pass metallic u-tube type recuperator with a capacity for preheating
air to a temperature of 4000C. The recuperator will be located above the
ground level. Detailed specifications are provided in the recuperator drawing
10. Refractory & insulation: Refractory & insulations forms a major role in
minimizing heat losses from the side walls and roof. An optimum refractory
& insulation pattern has been suggested to minimize the heat loss due to
radiation.
High temperature zones (soaking & heating zones): For the soaking and
heating zone sidewalls, a refractory lining consisting of 230 mm thick H.H.D.
firebricks (60% Alumina) followed by 115 mm thick light weight firebricks
(hot face insulation) backed by 115 mm thick Mica insulation bricks (cold
face insulation) backed by 75 mm thick Calcium Silicate block insulation has
been considered.
Low temperature zones (Preheating Zone): For the pre-heating zone, 230
mm thick H.D. firebricks (50% Alumina) backed by 115 mm thick light
weight firebricks (hot face insulation) backed by 115 mm thick Mica
insulation bricks (cold face insulation) backed by 75 mm thick Calcium
Silicate block insulation has been considered.
Roof: For the re-heating furnace roof, high alumina firebricks 58% Al2O3 340
mm for anchored bricks and 225 mm for unanchored bricks partly backed by
65 mm thick Ceramic fiber blanket (128 kg/m³), 50 mm thick insulation
castable and 50 mm thick Calcium Silicate block insulation has been
considered.
10
Sl. No. Parameter
11. Control system: The furnace has been provided with controls for the
following.
1. Temperature control for all the three zones
2. Air to fuel ratio control.
3. Furnace pressure control
The furnace has been designed with three control zones. All the three zones
will be with controls for temperature and air to fuel ratio. The control
strategy is on proportionate basis for soaking zone and heating zone 1. For
the heating zone 2, ON-OFF control strategy has been used. All the burners of
this zone will be either in full firing mode or will be in totally off mode. By
this firing strategy, cost will be minimized. The furnace has been provided
with pressure control. All the instrumentation system will be located in a
separate control room.
3. ENERGY EFFICIENT MEASURES IN THE RE-HEATING FURNCAE
Furnace design is based on the scientific calculations using established
mathematical models. Some of the energy efficient measures incorporated in the design
are:
● Furnace length has been determined by heat transfer calculations. The
furnace length chosen is neither too large nor too short. This selection will
minimize cost and flue gases will be available at recuperator entry with
good temperature for preheating the combustion air to 400 OC.
● Soaking zone firing will be axial and heating zones firing will be on the
side walls. The location of the burners will create good turbulence and
heat transfer inside the furnace.
● Three firing zones are chosen so that one firing zone (heating zone 2) can
be stopped during short delays for minimizing fuel consumption. This
zone is provided with ON-OFF control for easy operation and monitoring
by the operators.
● Low thermal mass and low conductivity ceramic fiber is used as back up
insulation for walls and total roof insulation in the preheating zone. This
measure will minimize heat losses through walls and roof.
● PID based control system is provided in the design for precise control of
temperatures in all the zones. This will provide temperature regimes for
different operating conditions.
11
● Furnace pressure control has been envisaged for elimination of ingress of
cold air into the furnace. Ingress of cold air not only cools down the
furnace leading to higher fuel firing but also damages various equipments.
● Chimney height is selected for evacuating all the flue gases through the
flue line with recuperator. This will ensure preheating of combustion air
to the designed level of 400 OC.
Optimum refractories and insulation has been suggested to minimize the
radiation heat loss from the side walls and roof.
High efficiency U-tube type cross-flow metallic recuperator has been
suggested to maximize the combustion pre-heat temperature thus leading
to optimum fuel consumption.
4. COST CONSIDERATION
The furnace cost consideration and its difference vis-à-vis a typical re-heating
furnace of similar capacity is provided below:
(i) Control System: Expenditure towards control system will be about Rs
20.0 lakhs. Benefits of this facility are (a) reduction of fuel consumption
by about Rs 15.5 lakhs and (b) reduction of burning losses about Rs 20.0
lakhs annually.
(ii) Better insulation of walls will lead reduction of heat losses through walls
by about 1.25% of heat input. This reduction will lead to a benefit of Rs
9.0 lakhs annually. Additional cost of 75mm thick calcium silicate
required for reducing heat losses through walls will be Rs 0.65 lakhs.
(iii) Through high performance recuperator air preheat temperature can be
increased by about 150 OC. This increase in air preheat temperature can
be realized by an investment of Rs 8.0 lakhs, which is likely to give a
benefit of Rs 40.0 lakhs.
The total cost will of the energy efficient re-heating furnace will come to approx.
Rs 1.85 crore.
5. PERFORMANCE INDICATORS AND PAY-BACK
On successful operations the furnace will be rated to produce within 10% of its rated capacity.
The specific fuel consumptions shall be within 32 l/t of steel heated,
during normal operation of the furnace.
The availability of the furnace will be over 90%.
The hearth life will be more than 2 years and the roof life will be around 3
years.
Scale losses shall be less than 1.5% in ingots and 1.25% in billets.
12
Compared to typical furnace, the saving potential envisaged for the energy
efficient furnace is approximately 20%. Considering specific fuel
consumption of 40 l/t in a typical furnace, conversion to energy efficient
furnace will lead to a saving of 8 l/t.
Considering the cost of furnace oil at Rs 40 / l, the investment towards
energy efficiency can be recovered within 26 months.
06
800
800
TYP
665 1200 600
INSPECTION DOORDISCHARGE DOOR
845
BURNER1200 1200 1200 1200 1200 1200 1200 1200 1200 1200 1200 1200 1200 1200
1600 1600 2000 16001735 3200
1291
4982
800
1291
12503105
1083
772
600 1550 (TYP)
20395
INSPECTION DOOR INSPECTION DOOR
13000
CASTABLE150 MM THK. 14
3300
0
X
EL. + 500
Д/6..
2000 PCDД00..
2800 SQ.
INSULATION100 MM THK.
Д//.
.
CJ, ç.,.
3500
17
16
300
813
18
200 19
HYD. CYLINDER
Д/4
4
OIL NIPPLE
G.M. BUSH
1300
HYD. CYLINDER
1490
170
2820
?GP NGNC Д4.7V2,3 KK RFI,
2800
2883
2049 1100 16500
2334
Д//.
.
Д//..
12
20
19
500
750
1000
300
AIR PIPE 150 NB
OIL LINE 25 NB
AIR
PIPE
600
O.D
X5
MM T
HK.
950
950
OIL LINE 25 NB
OIL RETURN LINE
950
950
15
TO OIL PUMPING & HEATING STATION
INSPECTION DOOR
DISCHARGE DOOR
7250
500
AIR HOSE PIPE 34" NB X1 Mtr. LONG
EL. + 575
CJ, ç.,. MGJ NGNC Д26V3 KK RFI,FROM H & P UNIT
EL.+3730
950950
EL. + 3985
EL. + 2750OIL PIPE 3/4 NB
EL. + 3155
829
576
SECTION : A-A
?GP NGNC Д 1/.V3KK RFIOIL PIPEД26V03
AIR PIPEД 0/.V3KK RFI
CERAMIC FIBRE 4" THK
CERAMICFIBRE 4" THK
CERAMIC
FIBRE 4" THK
17380
20195 800 1760
EL.-1500
2 Nos.COMBINATION VALVE 12" 21
DESCRIPTION
DISCHARGE DOOR LIFTING ARRANGEMENT8
43
7
56
1S.NO.
2 AIR BUTTERFLY VALVE 4" NB
Y-STAINER 3/4 NBGATE VALVE 3/4 NB
IIP ENCON FILM BURNER 4A FRONT SIDE
OIL MICRO VALVE 3/4 NBIIP ENCON FILM BURNER 4A SIDE WALL DISCHARGE DOOR
CONTROL DISK FOR PUSHER
1716
1918
20
109
14
1211
15
CHARGING DOOR (WINCH OPERATED )HYD. CYLINDER FOR DISCCHARGE DOOR
HYD.POWER PACK FOR PUSHER
HEATING & PUMPING UNIT 48 kw
CHARGING DOOR LIFTING ARRANGEMENT
DAMPERCHIMNEY
RECUPERATOR ( 70 F S )
BLOWER (35 kw/1000" WC.)
PUSHER
2 Nos.
14 Nos.14 Nos.
2 Nos.
14 Nos.5+5Nos.
04 Nos.QTY.
14 Nos.
1 No.1 No.
1 No.2 Nos.2 Nos.
1 No.2 Nos.
1 No.
1 No.1 No.
1 No.
MAN HOLE
2322
27262524
EJECTORCOMBINATION VALVE 8"
CONTROL DISK FOR EJECTOR
INSPECTION DOOR
BUTTERFLY VALVE 14" NB
1 No.1 No.
04 Nos.1 No.
1 No.1 No.
Ref. DRAWING NO.
13 FLUE UPTAKE
UHRGUD A@MCGT L@GDMCQ@ 'BNMRTKS@MS(
UNDP15 TPH REHEATING FURNACE WITHFURNACE OIL FIRING
GENERAL ARRANGEMENT: LAYOUT & AUXILIARY
PLAN
ELEVATION VIEW
1805 5505
Д/...
-BLOWER 35KW, 1000MM WC
17380
AIR PIPE 150 NBAIR PIPE 150 NB
INSPECTION WINDOW
CJ, ç.,.
VIEW -X
M C 150X75
MOTOR
WIRE ROPE DRUM
1350
EL. + 300
2820
?GP NGNC Д3.7V2,3KK RFI
1970
CASTABLE150 MM THK.
875
457611400
11
1651
4982
3680
1830
01
01
05
04
0727
06
09
08
11
10
23
26
NOTE :- 01. ALL DIMENSION IN MM. 02. FURNACE NOMINAL CAPACITY 15-TPH FOR 100X100X3000mm BILLET RE HEATING FURNACE.
.1, AMK@SQRGML ?GP @JMUCP 5...Lkł-FP $ BGQAF?PEC NPCQQSPC /... UA, 04 ELECTRO MECHANICAL EJECTOR. 05. PUSHER - HYDRAULIC
LEGEND :-
REFERENCE DRAWING NO. :- 01. CHIMNEY - VBMC/UNDP/RHF/04/01.01 02. RECUPERATOR - VBMC/UNDP/RHF/05/01.01 03. ELECTRICAL - VBMC/UNDP/RHF/06/01.01
HZ 7599SZ 3200
450
3865 12
50
850
3600
750
500
Д/03.
4230
750
500
PHZ 6580
13
ELEVATION VIEW
INSPECTION DOOR
1. ALL DIMENSION ARE IN MM UNLESS OTHERWISE SPECIFIED.
NOTE:
2. IIP ENCON FILM BURNERS CAPACITIES:
SOAKING ZONE : 4A (NOMINAL FIRING RATE 45Lt/hr
HEATING & PREHEATING ZONES : 4A (NOMINAL FIRING RATE 40Lt/hr
800
800
TYP665 1200 60
0
INSPECTION DOORDISCHARGE DOOR
845
BURNER1200 1200 1200 1200 1200 1200 1200 1200 1200 1200 1200 1200 1200 1200
UHRGUD A@MCGT L@GDMCQ@ 'BNMRTKS@MS(
UNDP
15 TPH REHEATING FURNACE WITHFURNACE OIL FIRING
GENERAL ARRANGEMENT: STRUCTURAL
1600 1600 2000 16001735 3200
1735 4000 1600 1600 2000 1600
1200 17380
1291
4982
800
1291
3600
12503105
1083
772
600 1550 (TYP)
INSPECTION DOOR
8415
INSPECTION DOOR INSPECTION DOOR 725
1830
2830
3680
IIP ENCON FILM BURNER 4A
MAN HOLE
1735
6580
17380
20395
20395
200
PLAN VIEW
REFERENCE DRAWING NO. :- VBMC/UNDP/RHF/02/01.01
SKID
17380
SKID
SKID
VIEW -XY
800800800
4982
X
Y
1322
1000
14
800 1760
200 19
AIR PIPE 250 NB
AIR PIPE 300 NB
AIR
PIPE
600
NB
950
950
HYD. CYLINDER
Д/44
OIL NIPPLE
G.M. BUSH
1300
20
19
500
750
HYD. CYLINDER
1490
1000
300
2820
?GP NGNC Д4.7V2,3 KK RFI,
4577 2883
2049 1100
2334
170
5130
2146
57
800
AIR PIPE 350 NB
A
VIEW - A
B
VIEW - B
C D
VIEW - C VIEW - D
VIEW - E
E
800 800 8001600 1600 1600
1600 1600 1600
VIEW - A
1600 1600
VIEW - B
1600
VIEW - C
1600 1600
VIEW - D
1600
VIEW - E
800 800 800
UHRGUD A@MCGT L@GDMCQ@ 'BNMRTKS@MS(
UNDP15 TPH REHEATING FURNACEWITH FURNACE OIL FIRING
GENERAL ARRANGEMENT: PIPING
100 NB100 NB
100 NB 100 NB
100 NB 100 NB 100 NB100 NB15 NB15 NB15 NB
15 NB
15 NB
15 NB 15 NB 15 NB
25 NB
25 NB
25 NB
25 NB40 NB
15
UHRGUD A@MCGT L@GDMCQ@ 'BNMRTKS@MS(
SECTIONAL ELEVATION VIEW
695
1200
1250
1120
1735 4000 1600 1600 2000 1600 7700
1291
800
800
800
1291
4982
NOTE:-
3. ALL CUT TO BRICKS TO BE CUT WITH BRICKS CUTTING MACHINE
4. MORTAR USED FOR LINING THE BRICKS SHOULD NOT BE
THINK MORE THEN 1MM
1. ALL DIMENSIONS ARE IN MM UNLESS SPECIFIED OTHERWISE.
2. FIRE AND INSULATION BRICKS REQUIRED PER IS STANDARD
SPECIFICATION FOR FIRE BRICKS IS:1526,
INSULATION IS:2042-1972
5. SPECIFICATIONS OF BRICKS ARE GIVEN IN SEPERATE BOM (WORD DOCUMENT).
SECTIONAL PLAN VIEW
FIRE BRICK H/A 70%
CALCIUM SILICATE BLOCK
IS-6 FIRE BRICK
INSULATION BRICK
FIRE BRICK H/A 50%
HOT FACE INSULATION BRICK
MICA INSULATION BRICK
1
13
2
2
2
1550 1550 1550 1550 1550 1550 1550 1550
1200 1200 1200 1200 1200 1200 1200 1200 1200 1200 1200 1200 1200 1200 1200
SZ 3200 HZ 7600 PHZ 6580
UNDP15 TPH REHEATING FURNACEWITH FURNACE OIL FIRING
GENERAL ARRANGEMENT: REFRACTORY& INSULATION
3600
1735
20395
17380
3200 1600 1600 2000 1600 8500
3030
750
500
1330
3105
800 800 800
SIDE VIEW
12911291
4982
500
750
1083
772
3105
3600
600
850
1522
H100
H100
H100
H100
H100
H100
H100
H100
H100
H100
H100
332
1251
616 750 750 750 750 750
RED BRICKS
2030
1250
3880
1850
SKID
CERAMIC FIBER
CASTABLE
75115115
230
75115115
230
115
115
115
115
100
200
100
250
75 75
115 115
16
DP-1
BFV-1
BFV-1
BFV-1
BFV-1
BFV-1
BFV-1
BFV-1
BFV-1
BFV-1
BFV-1
BFV-1
BFV-1
BFV-1
PV-1
PV-1
PV-1
PV-1
PV-1
PV-1
PV-1
PV-1
CV-1
S
25 NB25 NB
150 NB150 NB
150 N
B
150 N
B
BF
V-1
BF
V-1
BFV-1
BFV-1
TT SZ
FM SZ
FM HZ
TC HZ TC SZ
TC PHZ
PT
PT
FUEL
: OIL
.
PID
RATIO
PID
TEMP.
PID
RATIO
PID
TEMP.
TT PHZ
PID
TEMP.
UHRGUD A@MCGT L@GDMCQ@ 'BNMRTKS@MS(
UNDP15 TPH REHEATING FURNACEWITH FURNACE OIL FIRING
P&I DIAGRAM
17
UHRGUD A@MCGT L@GDMCQ@ 'BNMRTKS@MS(
UNDP
15 TPH REHEATING FURNACEWITH FURNACE OIL FIRING
SINGLE LINE POWER SUPPLY
18
UHRGUD A@MCGT L@GDMCQ@ 'BNMRTKS@MS(
UNDP15 TPH REHEATING FURNACEWITH FURNACE OIL FIRING
GENERAL ARRANGEMENT: RECUPERATOR
19
EL. + 500
Д/6..
2000 PCDД00..
2800 SQ.
CJ, ç.,.
EL.-1500
3300
0
RECUPERATOR
UHRGUD A@MCGT L@GDMCQ@ 'BNMRTKS@MS(
UNDP
15 TPH REHEATING FURNACEWITH FURNACE OIL FIRING
GENERAL ARRANGEMENT: CHIMNEY
* THE DRAWINGS SHOWN ARE INDICATIVE HOWEVER ACTUAL WILL BE PROVIDED DURING MANUFACTURING
20
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