ML18346A202
| ML18346A202 | |
| Person / Time | |
|---|---|
| Site: | Palisades  |
| Issue date: | 08/18/1975 |
| From: | Bixel D Consumers Power Co |
| To: | Office of Nuclear Reactor Regulation |
| References | |
| Download: ML18346A202 (13) | |
Text
/...
August 18, 1975 Division of Reactor Licensing US Nuclear Regulatory Commission Washington, DC 20555
- DOCKET 50-255, LICENSE DPR-20 PALISADES PLANT, FLUSHING REPORTS
~I~
,_ ieguf atory Docket fffe consumers Power company Attached are Steam Generator Flushing Reports No 7 and No 8 for the Palisades Plant.
These.reports cover the period from June 1, 1975 through July 31, 1975-David A. Bixel Assistant Nuclear Licensing Administrator CC:
JGKeppler, USNRC File 8818
PALISADES PLANT Steam Generator Flushing Report No 7 This report covers the period from June 1, 1975 through June 30, 1975.
In compliance with Appendix C to the Provisional Operating License DPR-20 as re-vised March 28, 1975, graphs are attached showing steam generator:
- 1.
Phosphate and Sulfate Concentration
- 2.
Conductivity (µmho/cm)
- 3.
pH
- 4.
Weight of Phosphate and Sulfate Removed At the beginning of this period, the plant was operating at approximately 80%
power.
Steam generator chemistry was within specifications.
Steam generator phosphates varied between 0.2 and 0.3 ppm.
Late on June 20, 1975 the plant was removed from service for repairs.
Cooldown commenced and the steam generators were put into a short-time layup with approx-imately 35 ppm of hydrazine.
The feed-water heaters were drained and the conden-sate system was put into layup with approxximately 60 ppm hydrazine.
The return of dissolved chemicals due to the cooldown occurred as expected.
Heat-up com-menced on June 29, 1975 reestablishi_ng blowdown for cleanup.
The plant was put on the line in the morning of June 30, 1975, but just after noon the plant again shut down.
The plant returned to operation at 2124 on June 30, 1975.
The upset caused by the shutdown is shown on the chemistry graphs.
pH depres-sions that occurred just after the shutdown and just after start-up were due to misvalving of the chemical addition system.
The amount of phosphate removed from the steam generators increased during this period by approximately two pounds for "A" and "B" steam generators.
The amount of sulphate removed also increased by approximately two pounds per steam genera-tor.
At the end of the period, the plant was on the line at 20% power with 20 gpm blowdown per generator for cleanup.
3.0 Cl 2.0 1.0 0
.c
- a.
PALISADES STEAM GENERATOR A WATER CHEMISTRY DATA REV 1 JUNE 1975 FIGURE A5 i------r------+----t-----+------l----+-----+-----ll-----+-----l------1-------1---------+-----1-----~20 E' r--------t-----j-------t------t------f-----+-----f-------+------J------1------l-------l-~~---1-------J-___ _JIO?
Cl NDUCTIVITY (#mho/crn)
E
- -*--*-'"'-*--*-*-...... ------L-.
-*-*-*-*-*- *-*-*-*-*--*- *---*-*-*-*- *-*-*-i--*-*-*-'-----*-'---*-*
~
r--------t-----f:::.._-----+-----t-*::-::-_-_*-__ **---+i---* ___ -l------+-----+------l-----l--------11--------+-----1------l----__Jo~
.si------r-------t-----r------t-----+----+-----+------f----+-------+-----1------l------1-----l-----J
~---~-----------
AC~ABNORMA LIMITF013._No.-:46~~---4------~-
.I -
.f SEE NOTE I NOTE I - MINIMUM DETECTABLE LIMIT FOR S04 JS /.0 PPM l
(I I
I I
9.5 PH --..
8.5 if 7.5 50 40 CONDUCTIVIT r.-
(.-U mho/c 10 0
.8
,7
.6
,r-Al>I ORMAL LIMIT FOR Na. -,4 60 PPM 3.0
.3 Q.
- a.
o....__o-----(
~ 2.0
.2 0..
[
~N5F MAL LIMIT FO I'( Na -.070 Pf M
~II A
- a.
1.0
.I 0
0 16 17 IB 19 PALISADES STEAM GENERATOR A WATER CHEMISTRY DATA JUNE I 975 REV I FIGURE A6 I
I I
I I
I I
I I
11 i
- -L---"-\\,
l---_.-*-
c-
~-
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I
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./
i
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120
~~
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~ 100 i A~
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0 i
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80 I
70
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8.0 70 7.0
~
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.. 60 6.0
[J
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- 50 0.. 5.0 z
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- a. 4.0
.LI---.
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A 20
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20 21 22 23 24 26 27 26 29 30 so.
- 70.
- 60.
- 50.
d z
40...
3
<1l 30.::;:
- a.
Q.
- 20.
I o.
3.0 iJ Vl 2.0
- i;
- a.
- a.
1.0 PALISADES STEAM GENERATOR B WATER CHEMISTRY DATA JUNE 1975 REV. I FIGURE BS I
I I
E
~
r------+-----+-----+-----+-----+-----+------11-------J.------l-------l------l-----.1.-----.l-------l-----130~
r--~~-t--~~-----lf--~~-+-~~--j~~~--l--~~--j~~~--l--~~---J~~~-+---~~---J~~~-+---~~---J~~~-1-~~___j_~~~j-?O~
r-----.~~~-.--+_1---=-co=._N:-:_o=u=c=~='.:::V:::IT:t-Y:::*=C)J..=='"=h-~'::-._-0-+--. -----------+_ :-. --=-=-. -:-._---l::-:.--:-. ----:c:-+-:--.,-,----:--+c---~.-=,+r--.-.. ---.===-. ---l-~-.--.-_-_-_-.--~.--.~---._j_,_-.-_-._--.--.1.-.---. -----.1..*~~-------.-1--.~=~---_-.__JIO j-----t------r----t------t------+----+-----+-----l-----!------+----l------l------l-----1--------lo
.5j-----t-----+-----t------t------+----t-----+-----l-----l------,-==d,..,.,..,--,-,""'""=-=b-c--~-~.,.h-----l-----1-----~
c=ABNOFMAL LIMIT F:JR Na -
,160 PPM ___
~..;.4
".3/
z I
- a..2
- 0.
t 3
4 6
7 8
9 10 12 13 14 15 NOTE I-MINIMUM DETECTABLE LIMIT FOR 504 15 l.O PPM
10.0 9.0 8.0 7.0 6.0 5.0
.q 0
- !;4.0
- a.
- a.
3.0 2.0 1.0 0
L
.c
- a.
IU.~
9.5 8.5 7.5 6.5 5.5 4.5 1.0
.9
.8
.7
.6
.5
.4
.q 0 a....3
"' z I
- a.
2
- a.
0 PH CONDUCT I f/ITY
,._______ ~
~M~,! FOR.460 -1 I
- ~
?-L/' ~
I SEE NOTE I\\.
NCRMAL UMIT I ORN~.Q70-~
~
16 17 18 0 P04 J
I 9, I 7
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od4.- 40.
z
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'/
20
. /'**
i--/
PALISADES STEAM GENERATOR B WATER CHEMISTRY DATA JUNE 1975 l.--*-*-*-'--*
- -H*-\\--*
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I
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ABNORMA LIMIT FO NO.
.460 23 24 25 26 27 22 NOTE 1:
MINIMUM DETECTABLE LIMIT FOR 504 IS t.OPPM
- --. \\
r-..
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REV I FIGURE B6
/
- \\ /
i.,
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90 80 70 60 50 40 20 10 0
- 60.
- 50.
- 40.
~
- 30. ~
- a.
- 20.
~~ ~
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0 28 29 30
Phosphate and Sulfate Removes from the Steam Generators Lbs it.
400 300
-+-'-
=
I I r-i~
-r-+f+= 0 200 Cl
~
~:+/-::
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- i=i:i=
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-+
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--1
-. r=
rg
-+-
100 8#
3 6
9 12 15 18 21 24 27 30 2
5 8
11 14 1'7 20 23 26 29 2
5 8
11 14 17 20 23 26 29 1
May June
.July 1975
PALISADES PLANT Steam Generator Flushing Report No 8 This report covers the period from July l, 1975 to July 31, 1975.
In compli-ance with Appendix C to the Provisional Operating License DPR-20, as revised March 28, 1975, graphs are attached showing steam generator:
- l. Phosphate and Sulphate Concentration
- 2.
Conductivity (µmho/cm)
- 3.
pH
- 4.
Weight of Phosphate and Sulphate Removed At the beginning of this period, the plant had just started up and was at approx-imately 21% power.
The steam generator chemistry reflected the shutdown with relatively high concentrations of dissolved solids.
Power ascension at approx-imately 10%.per day started late on July 1, 1975*
The chemistry graphs show the characteristic decrease in dissolved solids. Plant power was maintained at approximately 80% from July 8 to July 27, 1975.
During this period, steam gener-ator chemistry was quite stable with average values as follows:
"A" "B"
pH 8.4 8.4 Conductivity 3.5 µmho/cm 3.0 µmho/cm P04 0.25 ppm 0.25 ppm so4
<1.0 ppm
<1.0 ppm Na 0.010 ppm 0.010 ppm On July 27 the plant was shut down.
The secondary systems remained hot and were not put into lay-up.
There was an increase in dissolved solids.
The maximum concentrations were as follows:
"A" "A"
=
so4 5.0 ppm 3.5 ppm Po4 3.8 ppm 1.95 ppm Na +
2.92 ppm 1.92 ppm The plant was returned to service on July 29, and at the end of the period id was at approximately 80%. power.
Within 48 hours5.555556e-4 days <br />0.0133 hours <br />7.936508e-5 weeks <br />1.8264e-5 months <br /> a~er synchronizing, all steam generator chemistry parameters were within "normal limits."
The a.mount of dissolved solids (Po4= and so4 -) removed during this period was approximately:
"A" "B"
Po4 2.0#.
1.1#
so4 4.4#
3.8#
L
~. JDl
- i; 5
- a.
- a.
0 PALISADES STEAM GENERATOR A WATER
~HEMISTRY DATA JULY 1975 REV. I FIGURE A7
!I~
f--_____,,.---=t=I :::::::=t==---r==-
__ ---l-----t---------1---+=------r----+=-+---=r--==-t=-+==+==+~
25 21 '~~1~~
- ~~~~~~~~~~~-~--
2.0 0.5
.4 I
1.9 1.8 1.7 1.6 1.5 1.4 1.3
'II' 1.2 0 a.
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--- ~-'-. ---
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............. /
CONDUCTIVITY (,1£mho/cm)
- ~*-*-
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,r ABNORMAL L IMIT FOR Na -.460 RPM
{j
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NORMAL Lil !IT FOR Na -.070 5
6 8
9 10 II 12 NOTE I - MINIMUM DETECTION LI MIT FOR 504 JS 1.0 PPM
- --*-*- *-*-*-i--*-*--.
........... ~
~
~
13 14 15 9.5 8.5 7.5 40 30
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E 20~
10 0
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0
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Q. 2.0 1.0 0
f]
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9.5 6.5 7.5
,6
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- . 3 z
I
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Na 17 18 D
504 CONOUCTIVIT 19 20 PALISADES STEAM GENERATOR A WATER CHEMISTRY DATA JULY 1975 Ph
~.,.-
Y (.U mho/cm) *-*-*- *-*-*-
r-ABNOI MAL LIMIT F~R Na -.460 PPM R --,;;;-*. 070 P ?M-- -
"--NORM ~L LIMIT FO 21 22 23 24 25 26 NOTE I - MINIMUM DETECTION LIMIT FOR 504 IS 1.0 PPM REV. I FIG. AS 11 I a v*-
v
~.
\\
I
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0.,. 5.0 f ~
--~-
z 4.0 I
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~
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f
- *~
27 26 (ll 29 30 ABNORMAL LIMIT FOR Na -.460 PPM 40 30 E
~
20" E
- i.,
I 0 0
5.0 4.0 3.0 J
2.0 ~
1.0
- 0.
- 0.
9.5 r
- n.
8.5 7.5 8
7 0
Cl)...
~ 6 0..
5
- n.
4
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3 2
0 Ph I\\
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lb_
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4 NORMAL LIMIT FOR Na -.070 PPM ABNORMAL LIMIT FOR Na -.460 PPM
--v CONDUCTIVITY (µmho/em) 9' v "" ~
SEE ;oTE I
-- ~~
5 II NOTE I PALISADES STEAM CENERA1DR B WATER CHEMISTRY DATA JULY 1975
'o ll"'-A llNORM, L LIMIT FO~
"\\
~
0 v
v ~
f'Q v
~
f----
~OR MAL '---
LIMIT FOR A
A 7
8 9
10 II
- MINIMUM DETECTABLE LIMIT FOR so 4 IS 1.0 PPM
- 6. Na Na -
.460 P
/\\
IJJ
~01ol'PM 12 REV I FIGURE 87 I I 40 30 E
u 20 ~
~
E I 0.::z bM 13 14
->....... ~
~
15 0
8.0 7.0 6.0 5.0 3
4.0 ~
Q.
3.0 Q.
ao 1.0
3.0 i!J 2.0 Ill
- 0.
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1.0 0
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a:
w 3:
0 n.
~
9.5 B.5 f
- 7. 5
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- n.
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,5
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.o IC-----
16 I
Jl.
-..... r--_
NOTE I\\
17 O-P04 18
/
19 20 D -S04 PALISADES STEAM GENERATOR B WATER CHEMISTRY DATA JULY 1975 I
11
~
v*-.__..-
(
/-*-
I/
I.--*-*--*- ---*-L--*-*- *-*-*- *--*-*--*-_./
.rA NORMAL LIM T FOR Na. PPM.460 A
I.. ~
0 Ill
\\_
1 "'
rr
~,. I
---,2.
od/
p~,
,tl
- 1. I
~*NORMAL LIMiTFoR-N~PM.07-0 j-
- t 1,___
NOTE 2 21 22 23 24 25 26 27 28 NOTE I MINIMUM DETECTABLE LIMIT FOR S04 IS 1.0 PPM NOTE 2 ABNORMAL LIM IT FOR NO.
IS
.460 PPM REV I FIGURE BB I a
./-*-
- -'\\/*........ \\.
~
A [\\
u-- ~
29 30 30 I
0 8.0 7.0 s.o o~
Ill 4.Q I ::;
3.0 2.0 1.0 0
0..
0..
. ' ~
~
- 1 Phosphate and Sulfate Removes from the Steam Generators
~
Lbs 4oo 300 0
200 m
~
100.-'-'++-'-
-/
=r
!
f-
-+--t-+-'--+-
~
+-'
++=
+-++-H l:ftt*-
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