ML20235Y051
| ML20235Y051 | |
| Person / Time | |
|---|---|
| Site: | Crystal River  |
| Issue date: | 07/16/1987 |
| From: | Silver H Office of Nuclear Reactor Regulation |
| To: | Wilgus W FLORIDA POWER CORP. |
| References | |
| NUDOCS 8707250047 | |
| Download: ML20235Y051 (5) | |
Text
_
.' b July 16, 1987 Docket No. 50-302
, DISTRIBUTION "eDocket 111es E. Jordan NRC PDR J. Partlow Local PDR ACRS (10) s Mr. W. S. Wilgus PD22 Rdg.
Gray File I
Vice President, Nuclear Operations S. Varga RWright Florida Power Corporation G. Lainas ATTN: -Manager, Nuclear Licensing D. Miller P.O. Box 219 H. Silver Crystal River,. Florida 32629 OGC-Bethesda j
l
Dear Mr. Wilgus:
{
i As a result of the Surry pipe erosion / corrosion incident in December of 1986, the NRC is preparing a report that will reference existing research information available and describe the actions being taken by utilities regarding erosion /
1 corrosion in feedwater pipes in nuclear power plants. Central to an understand-ing of erosion / corrosion in pipes is an accurate assessment of erosion / corrosion experience, piping design, feedwater and condensate chemistry and piping materials.
)
i To ensure that both the NRC and the nuclear industry have available a l
comprehensive collection of data regarding erosion / corrosion in feedwater pipes, the NRC will assemble a summary of utility information related to ongoing water chemistry actions in pressurized water reactors. To accomplish j
this task we ask that you complete the enclosed questionnaire for Crystal River Unit 3.
The information being requested is quite extensive and will require a diligent effort on your part and ours to assure accurate and timely completion. Also, we realize that parts of the information may already be available to the NRC, but not in a convenient format which is readily accessible. Therefore, we request that you assist us by returning for each unit a single completed copy of the enclosed questionnaire to Harley Silver, Project Manager, U.S. Nuclear Regulatory Commission, Washington, D.C.
20555, within 60 days of receipt of this letter. We believe the questionnaire is self explanatory; however, if questions arise or clarification is required, please contact your NRC Project Manager.
gRo7250047 870716 "
ADOCg 0500000g p
l Mr. W. S. Wilgus )
l This request is covered by Office of Management and Budget Clearance Number 3150-0011 which expires December 31, 1989. Comments on burden and duplication may be directed to the Office of Management and Budget, Room 3208, New Executive Office Building, Washington, D.C.
20503.
Sincerely,
)
/s/
l Harley Silver, Senior Project Manager Project Directorate II-2 Division of Reactor Projects-I/II
Enclosure:
PWR Erosion-Corrosion Questionnaire l
cc: See next page 1
l l
1 G
PM: 22 D;P Utdb) s l
er HSilver:he in l
/87 7/7LJ87 7/l6/87 l
l L___
l Mr. W. S. Wilgus Crystal River Unit No. 3 Nuclear 1
Florida Power Corporation Generating Plant
]
1 f
cc:
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Mr. R. W. Neiser State Planning and Development Senior Vice President Clearinghouse and General Counsel Office of Planning and Budget Florida Power Corporation Executive Office of the Governor P. O. Box 14042 The Capitol Building St. Petersburg, Florida 33733 Tallahassee, Florida 32301 i
Mr. P. F. McKee Mr. F. Alex Griffin, Chaiman Director, Nuclear Plant Operations Board of County Commissioners Florida Power Corporation Citrus County
]
P. O. Box 219 110 North Apopka Avenue j
Crystal River, Florida 32629 Inverness, Florida 36250 1
Mr. Robert B. Borsum Mr. E. C. Simpson Babcock & Wilcox Director, Nuclear Site Nuclear Power Generation Division Florida Power Corporation Support Suite 220, 7910 Woodmont Avenue P.O. Box 219 Bethesda, Maryland 20814 Crystal River, Florida 32629 Resident Inspector U.S. Nuclear Regulatory Commission 15760 West Powerline Street Crystal River, Florida 32629 Regional Administrator, Region II U.S. Nuclear Regulatory Comicsion 101 Marietta Street N.V., Suite 2900 Atlanta, Georgia 30323 Jacob Daniel Nash Office of Radiation Control Department of Health and Rehabilitative Services 1317 Winewood Blvd.
Tallahassee, Floridt 32399-0700 Administrator Department of Environmental Regulation Power Plant Siting Section State of Florida 2600 Blair Stone Road Tallahassee, Florida 32301 Attorney General Department of Legal Affairs The Capitol Tallahassee, Florida 32304
i ENCLOSURE PWR EROSION-CORROSION QUESTIONNAIRE (Check or Circle All Applicable)
Utiiity Company:
Unit Name:
MWe filled by:
Date:
Phone No.
)
i in service: 19....
Water Treatment:
AVT with ammonia, morpholine, hydrazine.
Condensate polishers:
none, cation, powdex. mixed bed;
.....% of feedwater flow; installed 19....; operated in: H-OH. NH4-OH form.
Cooling water: fresh, salt, brackish, cooling tower.
Copper alloy condenser tubing: yes, no. Copper alloy FW heater tubes:
Boric acid used since: 19...; during: operation, layup.. low load soaks, other.......
A.
EROSlON-CORROSlON EXPERIENCE I.
Erosion-Corrosion identified in wet steam piping:
yes, no.
'2.
Erosion-Corrosion of MSR Chevrons or mesh:
yes, no.
Chevron material:
sta inl ess stee l, carbon stee l, other.....................
3.
Erosion-Corrosion of feedwater piping:
yes, no.
Date found...................
feedwater piping materials:
4.
Erosion-Corrosion of:....
elbows...... Ts.
diffusers.......: reducers.
.... valves..... or;fices..... other components (specify)..................
S.
Erosion-Corrosion of J-Tubes: yes, no.
6.
Erosion-Corrosion of feedwater distribution ring: yes, no.
7.
Erosion-Corrosion of turbine:
8.
Erosion-Corrosion of other cycle components (identify).......................g.
9.
Feedwater temperature range where erosion-corrosion found:
from.... to..... F 10.
Inspection frequency for feedwater piping..... years. Steam lines..... years.
II.
Inspection methods used: ul trasoni c thi ckness. radiography visual, other......
i B.
PIPING DESIGN 1.
Maximum feedwater flow veiocity............ feet /second.
I 2.
No. of feed pumps operating at 100% loao........ second pump On at.....% l oad.
3.
Maximum flow velocity when only 1 pump is operating............... feet /second.
j 4.
No. of feedwater piping components:....... elbows....... Ts,...... diffusers.
reducers....... valves....... orifices.
...... other components (specify) 5.
Maximum flow velocity in wet steam piping........... feet /second.
6.
Feedwater pressures and temperatures (agtual (preferred) or design):
Full load (pressure, psla/ temperature.
f):
P:
P:
P:
P:
P:
l T:
T:
T:
T:
T:
r P
Ye Y
e y
I L g
k/
Condensate Pump Cond. Polishers BF Pump Steam Generators i
+
Low load itypical
...% of full load):
1
,P:
P:
P:
P:
P:
T:
T:
T T:
T:
!V Cond. Polish @ers M
P 4
l y
r Con.nsate Pemp BF Pump Steam Generators j
Please attach copleS of the heat balanc? diaorams for your actual full load and j
tvolcal low load.
. l
\\.
.C.
FEE 0 WATER AND CONDENSATE CHEMISTRY 1.
Please complete the attached Table.
2.
feedwater chemistry history (average or typical values, final feedwater):
Year of oper.:
13 1974 1970 1978 1980 1982 1983 1985 1986 1987 pH of FW maximum.
minimum.
average.
pH of condensate maximum.
minimum.
l average.
l 00, ppo maximum.
minimum.
average.
Cat. Cond, uS/cm.
Spec. Cond. uS/cm.
NH, ppb I
Nh, ppb ron, ppb Air Inleakage.
SCfH Please send any water chemistry summary reports and dataz 3.
Chemical additions
3.1 Ammonia
typica l concentrat ion i n feedwater.... ppb; added at...........
3.2 Hydrazine
typical concentrat ion in feedwater.... ppb; added at.........
3.3 Boric acid: typical concentration in feedwater.... ppb as B; added at..................
e D.
MATERIALS 1.
Feedwater pip ing - l i st ASTM or other spec i f i cat ion numbers....................
2.
Wet steam piping:
3.
Attach results of chemical analysis by you or pipe vendors.
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