Chemistry in Power Plant-p

WATER CHEMISTRY IN POWER PLANT

BY P. SRIVASTAVA SR. MANAGER(CHE MANAGER(CHEM.) M.) 1

N

b

13 201

WATER CHEMISTRY IN POWER PLANT

WATER CHEM WATER CHEMIST ISTRY RY IS A VERY IMP IMPORTANT ORTANT DISCIPLINE IN POWER SECTOR. TO ACHIEVE HIGHER OPERATION EFFICIENCY AND TO REDUCE PLANT DOWNTIME, HIGH WATER QUALITY STANDARDS STA NDARDS ARE TO BE MAINTA MAINTAINED INED 2

N

b

13 201

WATER CHEMISTRY IN POWER PLANT PRODUCTION OF : --- D.M. WATER FOR BOILER MAKE-UP. --- FILTER WATER FOR SOFTENING PLANT, D.M. PLANT, DRINKING WATER AND A.C. COOLING SYSTEM.  MONITORING OF STEAM/ WATER PARAMETERS 



H.P./L.P. DOSING.



TESTING OF COAL. TESTING OF LUB OIL.



3

N

b

13 201

WATER CHEMISTRY IN POWER PLANT

4



CIRCULATING WATER TREATMENT



POLLUTION MONITORING  

STACK MONITORING

 

AMBIENT AIR

 

WATER EFFLUENT



E!!LUENT TREATMENT PLANT



COMMISSIONING ACTI"ITES N

b

13 201

WATER FLOW DIAGRAM RAW WATER

CLARIFLOCC ULATOR

D.M. PLANT

U/G STORAGE TANK

SOFTENING PLANT DRINKING WATER 5

N

COOLING WATER b

13 201

GRAVITY FILTER

BOILER MAKEUP C.W. MAKEUP

D.M. PLANT

 AC!

WEA$ &ASE  ANION

#

N

WEA$  ACI% CATION

STRONG  ACI% CATION

STRONG &ASE  ANION

MI'E% &E%

b

13 201

%EGASSER

%(M( WATER STORAGE TAN$

D.M. WATER QUALITY

)



*H

+ )(0  0(2



CON%UCTI"ITY

- 0(2 µ m.o



T%S

+ NIL



S/O2

- 20 **b

N

b

13 201

WATER STEAM CYCLE (GAS PROECT) L.P. DOSING

D.M. WATER

CONDENSER

RFT

LP STEAM

LP TURBINE

D/A

LP BOILER LP BFP

H.P. DOSING

HP TURBINE

HP STEAM

HP BOILER HP BFP



N

b

13 201

WATER STEAM CYCLE (THERMAL PROECT) HYDRA!INE DOSING

AMMONIA DOSING

CEP

CST

D.M. WATER

 STEAM

TURBINE

CONDENSER

D/A

BOILER BFP T.S.P. DOSING



N

b

13 201

WATER/STEAM CHEMISTRY PARAMETERS MONITORE% *H   S//   Co678/v/89    A:8er C8/o Co678/v/89   %/;;ove6 Om

 

*H

(+(2

 

To8 Iro?Co**er

-0(02 **m

 

S//

-0(02 **m

 

%/;;ove6 Om

 

*H

(+(2

 

S//

-0(02 **m

 

%/;;ove6 Om

 

*H

(2+(#

 

S//

-0(300 **m

 

P.o;*.8e

2+4 **m

N

b

13 201

WATER QUALITY 

STEAM  ACC

-0(2 7S>m

 

*H

(+(2

 

To8 Iro?Co**er

-0(02 **m

 

S//

-0(02 **m

 

So6/7m

-10 **b

 

14

N

b

13 201

DISTRIBUTION RATIO BETWEEN STEAM " BOILER WATER AT #H $.% D&' P&**'&  14 $=>Cm2

15

S++ + B0+& W1&   130 **b

1)# $=>Cm2 220 **b 15 $=>Cm2 20 **b 134 $=>Cm2 500 **b 11) $=>Cm2 1000 **b 100 $=>Cm2 2220 **b #5 $=>Cm2 4000 **b B0+& D&' P&**'& +* 10 2 +1+3 * *'4,S++ 5' + M+ S1 +1+ 206 N78 ##2 b 13 201

++

PARTITION COEFFICIENT AT DIFFERENT PRESSURES # K

TI T R A P

CI F F E O C N OI

T N EI

988

98-9

S + O  7 

98-7

98-

N  .  O  H  

98-;

98-%

N  .  C  ,  

98-<

98-=

77<

1#

778

788

9>8

N

9