ML20203G139
| ML20203G139 | |
| Person / Time | |
|---|---|
| Site: | Perry  |
| Issue date: | 07/19/1986 |
| From: | Drozda G CLEVELAND ELECTRIC ILLUMINATING CO. |
| To: | |
| Shared Package | |
| ML20203G077 | List:
|
| References | |
| MTI-0006, MTI-6, NUDOCS 8607310358 | |
| Download: ML20203G139 (47) | |
Text
~
O OM19':: MII-0006 Page :
1 Rev. : 2 THE CLEVELAND ELECTRIC ILLUMINATING COMPANY PERRY NUCLEAR POWER PLANT OPERATIONS MANUAL TEMPORARY INSTRUCTION TITLE:
UNLOADING, DRYING, AND LOADING OF N64 ACTIVATED CARBON ADSORBER VESSELS TYPE OF INSTRUCTION: GENERIC MECHANICAL INSTRUCTION b'
EFFECTIVE EXPIRATION M
F /- d 7 7//g g REVISION:
2 DATE:
7./9 86 DATE:
DATE l
PREPARER:
Greg Drozda
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'5 Page : 11 Rev. : 2 Unloading, Drying, and Loading of N64 Activated Carbon Adsorber Vessels MII-0006 Table of Contents Section Title Pjyyt 1.0 PURPOSE 1
2.'O SCOPE 1
3.0 PRECAUTIONS AND PREREQUISITES 1
4.0 REQUIRED EQUIPNENT 2
4.1 Measuring and Testing Equipment 2
4.2 Tools 2
4.3 Parts 2
5.0 INSTRUCTIONS 3
5.1 Carbon Unloading 3
5.2
)
Drying of Vessels and Associated Piping 10 5.3 Carbon Loading 17 5.4 System Restoration 20 6.0 POST MAINTENANCE 22 7.0 ACCEPTANCE CRITERIA 23
8.0 REFERENCES
23 9.0 ATTACRMENTS 23 9.1 - Form:
MII-0006-1, Chronological 25 Log
[
9.2 - System Valve Lineup 26 9.3 - Figure 1, Vacuum Line and Water 28 Line Arrangement 9.4 - Figure 2, Vacuum Line Arrangement 29 9.5 - Form:
MII-0006-2 (Sheets a-h),
30 Vessel Drying Valve Lineup 9.6 - Figure 3 Psychrometic Chart 38 9.7 - Figure 4, Temporary Drain Valve 39 Sketch 9.8 - Figure 5, Sketch of, Loading 40 Apparatus 9.9 - Form:
MTI-0006-3, Vessel Carbon 41 Loading Record
1 OM19C: MTI-0006 Page : iii Rev. : 2 10CFR50.59 Applicability Check Yes No Is there a change to the pla9t as cribed in the FS ? Reason:
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In there a change to a procedure / instruction as d
r ed in the F AR? Reapon: '7f *e WTI J,, m cd q
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Is there a test or experiment not deser bed in the y
FSAR? Reason: Ti #Tr ebs e zev ut om o Y ee odehmml ob4 Orenkd th NAkd r
u Is there a change to the Technical Specifications?
Is there an effect on the environment or change to p
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Reason: %,*e j\\she ueo d m,.
se euerrmved
@ Answers to all questions are "No", no potential for an Unreviewed Safety or Environmental Question exists, no further review required.
Answers to one or more questions is "Yes", further review required.
9!9t Prepared By:
Date:
p Reviewed By:
Date: 7* N'86 It#M das Date: 7-//-863 Approved By:
4 f
SCOPE OF REVISION:
Rev. 2 -
1.
Added Section 5.3 for Loading Adsorbers.
2.
Added Section 5.4 for Restoration.
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OM19C: MII-0006 Page :
1 Rev. : 2 Unloading, Drying, and Loading of N64 Activated Carbon Adsorber Vessels 1.0 PURPOSE The purpose of this instruction is to provide details for the change out of activated carbon in the Of f-Gas System Adsorber Vessels.
2.0 SCOPE 2.1 IN64D0012A 2.2 IN64D0012B 2.3 1N64D0013A 2.4 1N64D0013B 2.5 IN64D0014A 2.6 IN64D0014B 2.7 1N64D0015A 2.8 IN64D0015B 3.0 PRECAUTIONS AND PREREQUISITES 3.1 Ensure that an adequate safety tag out has been prepared and imple-mented prior to beginning any work.
3.2 Maintain area housekeeping requirements within the loading enclosure and vault in accordance with PAP-0204.
3.3 Ensure that all required provisions of PAP-0516, Confined Space Entry, are understood and observed before entering the vault.
3.4 Carbon dust is a potentially explosive substance. No flames, sparks, or ignition sources are permitted in the unloading / loading area. Contact a Fire Protection Specialist prior to moving any charcoal and observe all applicable portions of PAP-1913, Transient Combustibles. Electrical equipment in the vessel during dry trans-I port shall be suitable for Class II, Group F locations.
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OM19C: MTI-0006 Page :
2 Rev. :
2 3.5 Maintain a positive flow of instrument air through the vault during charcoal unloading and loading operations.
3.6 Ensure that all unterials such as scaffolding, hoses, fittings, lights, tools, etc. necessary for unloading or loading operations are staged in the work area as required.
3.7 Ensure that all fire protection equipment, including CO extin-guishers and charged fire hoses, are staged in the work area as required by the Fire Protection Specialist.
4.0 REQUIRED EQUIPMENT 4.1 Measuring and Testing Equipment 4.1.1 Dewpoint Hygrometer, General Eastern Model #1200 ATS or equal 4.1.2 Bristol Thernal Humidigraph or equal 4.1.3 Torque wrench capable of 150 f t. lbs.
4.1.4 3 rooks instrument flow meters (0.7-7 gpm and 7-70 gpm or equal).
4.1.5 Pressure gage with 1/2" MNPT (0-100 psi).
4.1.6 Surface Pyrometer 4.2 Tools 4.2.1 Normal hand tools.
4.2.2 Explosion proof lighting (Class 2).
4.3 Parts 4.3.1 6" Flexatalic Gasket (8 required).
4.3.2 1/2" wide Grafoil Crinkle Tape.
4.3.3 2" Flexatalic Gasket (24 required).
4.3.4 1" Flexatalic Gasket (8 required).
4.3.5 A/C unit; approximately 15 Ton.
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4.3.6 Wooden template to protect flange seating surface. (8 required)
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3 Rev. : 2 4.3.7 1" screened flange / ball valve assembly.
(8 required) 4.3.8 2" blind flange. (24 required) 4.3.9 Hoses, fittings and spray nozzle (see Attachment 4 for nozzle specs.) as required for carbon wetting.
4.3.10 Water regulator.
4.3.11 Sump pump, sump hose, and drain hose as required for dewatering (see Attachment 3).
4.3.12 Ground strap, ground clamps, and ground connectors as required.
4.3.13 Activated carbon as required.
4.3.14 Carbon loading apparatus.
5.0 INSTRUCTIONS 1.
This work is being performed on adsorber vessel O
(record adsorber vessel MPLf).
NOTE:
Sign-off the steps of the instruction, where in-dicated, as the work is performed; enter N/A for steps that do not apply.
In addition, a Chronolo-gical Log, Attachment 1, shall be maintained by the Maintenance Supervisor to document starting and stopping of the vacuuming operation and other events described by this instruction that may require l
additional documentation.
NOTE:
The carbon shall be unloaded through the 6" loading hatch using a vacuum truck.
5.1 Carbon Unloading 1.
Verify the instrument air purge per Section 3.5 prior to starting work.
/
Operator Initials Date 2.
Secure the nitrogen purge on both adsorber trains.
/
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operator Initials Date r-
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Rev. : 2 3.
For the first use of this instruction, perform VLI-N64 (Off-Cas System) for valves and positions listed on Attachment 2.
For subsequent uses of this instruction, verify that the valve lineup is in accordance with Attachment 2.
/
Operator Initials Date 5.1.1 Wet Unloading NOTE:
Carbon in adsorber vessels 15A&B,14A&B,13A&B, shall be unloaded using a wet unloading method as follows:
1.
A flexible vacuum line long enough to reach the bottom of the vessel shall be used to remove the carbon.
2.
The carbon shall be wetted with P21 water through a regulated spray device attached to the vacuum line while the carbon is being re-moved from the adsorber vessel. See Attachment 3 for vacuum line and water line arrangement.
O 3.
Flow through the spray nozzle will be determined from a flow indicator.
1.
Verify that the 3 thermocouples installed in the vessel have been removed and replaced with blind flanges and flexatalic gaskets.
/
Maint. Initials Date
- =*************************************************************
CAUTION Nitrogen may be present in the vessels and may be released when any flanges are removed. Follow the direction of the Health Physics Tech while performing work.
2.
Remove the bolts in the 6" hatch flange and remove the flange. Save the bolts, flange, and flexatalic gasket.
/
Maint. Initials Date
/
I
OM19C: MII-0006 I~ '
Page : 5 Rev. : 2 3.
Install a fire retardant wooden ring, with an inside diameter equal to that of the loading hatch, over the flange seating surf ace for protection.
/
Maint. Initials Date 4.
Verify that the 1" blind flange from the hydrostatic test connection has been replaced with the screened flange / ball valve assembly.
/
Maint.-Initials Date 5.
Install dewatering apparatus and connect to screened flange / ball valve assembly.
/
Maint. Initials Date 6.
Fully open the ball valve on the assembly.
/
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Maint. Initials Date 7.
Connect the spray nozzle line to a regulated P21 water supply and secure the spray device to the vacuum line.
/
Maint. Initials Date 8.
Insert the vacuum line with spray nozzle attached through the 6" loading hatch to a distance just above the carbon bed and turn on the P21 water supply valve. Spray the carbon bed evenly with approximately 100 gallons of water.
/
Maint. Initials Date 9.
While maintaining the water spray at 6 gpm minimum, start the vacuum pump and begin vacuuming the wetted carbon.
Rotate the vacuum line while vacuuming as required to ensure optimum spray pattern.
/
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Maint. Initials Date O
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OM19C: MTI-0006 C,',')T Page :
6 Rev. : 2 10.
Continue to vacuum and spray carbon until carbon is saturated with water. Once saturated, secure water spray and continue vacuum without water until maximum amount of carbon is removed from the vessel, then secure vacuum pump.
NOTE:
At the direction of the Maintenance Supervisor the vacuum pump may be stopped and restarted as required for vessel examination. Document the starting and stopping of the vacuum pump on the Chronological Log Attachment 1.
/
Maint. Initials Date CAUTION If water spray is lost or falls below 6 gpm, vacuum operation shall be stopped.
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11.
When vacuuming is complete remove the vacuum line and spray device from the adsorber vessel.
/
Maint. Initials Date 12.
Inspect the vessel to verify that sufficient carbon has been removed to meet the requirements of FCR-03743 and that the vessel interior meets Class D cleanliness re-quirements in accordance with PAP-0204 and FCR-03743.
If the initial inspection indicates that more carbon must be removed, continue with Steps 9 through 11 until the requirements of FCR-03743 are satisfied.
/
NQAD Initials Date 13.
When the inspection in Step 12 is complete, secure the vessel as follows:
a.
Close the ball valve and on the 1" screen flange / ball valve assembly.
b.
Remove the flange seating protector and reinstall the hatch flange and original flexatalic gasket.
/
Maint. Initials Date
OM19C: MII-0006 p)
\\s, Page :
7 Rev. : 2 5.1.2 Dry Unloading NOTE:
Carbon in adsorber vessels 12A&B shall be unloaded using a dry unloading method as follows:
1.
A flexible vacuum line long enough to reach the bottom of the vessel shall be inserted through the loading hatch and into the charcoal bed.
2.
At a point along the vacuum line, water will be educed through a line placed in a water reser-voir.
3.
The vacuum line is then expanied in stages to an 8" line. At this point, air flow through the system is regulated by a bypass valve.
1.
Verify instrument air flow per Section 3.5 prior to starting work.
/
Maip+. Initials Date Os
- =************************************************************
CAUTION Use care when removing bolts from the thermocouple flanges to preclude loss or damage. These bolts are difficult to replace.
2.
Verify that the 3 thermocouples installed in the vessel have been removed and replaced with blind flanges and flexatalic gaskets.
I Maint. Initials Date CAUTION Use care when removing bolts from the hatch flange to preclude loss or damage. These bolts are difficult to replace.
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OM19C: KrI-0006 r~x h
Page :
8 Rev. : 2 CAUTION Nitrogen any be present in the vessels and may be released when any flanges are removed. Follow the direction of the Health Physics Tech while performing work.
3.
Remove the bolts in the 6" hatch flange and remove the flange. Save the bolts, flange and flexatalic gasket.
/
Maint. Initials Date 4.
Install a fire retardant wooden ring, with an inside diameter equal to that of the loading hatch, over the flange seating surface on the vessel for protection.
/
Maint. Initials Date
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5.
Connect a ground strap to the 4" vacuum line at a point downstream of the water eduction line. Connect the other end of the ground strp to the nearest station ground.
/
Maint. Initials Date 6.
Before beginning to vacuum, verify the following:
a.
Water level in the receiver tank on the truck is approximately half full and that the water eduction line is submerged.
b.
The supply reservoir for the water to be educed into the vacuum line is full.
c.
The vacuum bypass valve on the vacuum line is full open.
/
Maint. Initials Date 7.
Using the vacuum truck, vacuum out the carbon in the following manner:
a.
Open eductor isolation valve and insert the vacuum line into the carbon bed and start the vacuum pump.
/3 OM19C: MTI-0006 Page :
9 Rev. : 2 b.
Slowly close the vacuum bypass valve until carbon begins to pass through the vacuum line. Manipulate the vacuum bypass valve as required to achieve the desired rate of carbon removal, c.
Add water to eductor supply reservoir as required to maintain a level above 1/2 full.
NOTE:
Closing the vacuum bypass valve increases the removal rate; opening the valve de-creases the removal rate.
CAUTION If educator supply reservoir level falls below 1/4 full or the hose is uncovered, stop vacuum operation immediately.
8.
At the direction of the work supervisor the vacuum nay be stopped and started in accordance with the following
~T steps:
(V a.
Fully open the vacuum bypass valve on the vacuum
- line, b.
Shut off the vacuum pump.
c.
Isolate the water eduction supply.
d.
Restart the vacuum in accordance with Step 6.
NOTE:
The Maintenance Supervisor will document i
the starting and stopping of the vacuuming j
operation on the Chronological Log, 9.
Continue to vacuum until no more carbon can be removed.
Removal of the carbon from the 6" deadleg at the bottom of the vessel is not required.
/
Maint. Initials Date NOTE:
Water may be drained from the vacuum truck re-ceiver tank if the water level in the tank in-dicates this is necessary. Record such actions on the Chronological Log, Attachment 1.
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4
('~3 OM19C: MTI-0006 V
Page :
10 Rev. :
2 CAUTION Protective equipment may be required and permission of the Health Physics Tech is required before inspection of the vessel.
10.
Ins pect the vessel to verify that sufficient carbon has been removed to meet the requirements of FCR-3743 and that the vessel interior meet Class D cleanliness require-ments in accordance with PAP-0204 and FCR-3743.
If the initial inspection indicates that more carbon must be re-moved, continue with Steps 6 through 8 until the require-ments of FCR-3743 are satisfied.
/
NQAD Initials Date 11.
When the inspection in Step 9 is complete, remove the
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wooden flange seating protector and reinstall the hatch flange and original flexatalic gasket.
/
Maint. Initials Date 12.
Secure the instrument air purge established in Section 3.5.
/
Operator Initials Date 5.2 Drying of Vessels and Associated Piping 5.2.1 Instrument Air Purge and Flush of A and B Trains 1.
Remove safety tags placed for charcoal removal in Section 5.1.
/
Operator Initials Date 2.
Perform the valve lineup listed on Attachment 5.
/
Operator Initials Date O
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TEMP CHANGE OM19C: MT1-0006 ggf>E _ / OF d p.g :
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Close velve IN64-F519B and check open IN64-F071A.
/
Operator Initials Date NOTE:
If the drain or crossover line does not have a valve installed, ensure that the temporary closure is capable of withstanding temperatures greater than 200*F.
4.
Verify that the installed temporary drain valves or closures in the A and B Train are closed.
/
Maint. Initials Date Pull (cattrol pwer fast F32 n the OR-(m lod Panel N64-ft0L g_
5.
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/
Operator Initials Date 6.
Disconnect electrical lead N64A1391 on terminal board EE-2 in of f-Cas Control Panel 1813-F845. Verify that valve IN64-F045 is closed.
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16C Initials Date 7.
Open valves 1N64-F106A and 1N64-F106B. This will begin the instru ent air purge of the A Train.
/
Operator Initials Date eeeeeeeeeeeeeeeeeee*****eneeeeeeeeeee***********eeeee*******************
CAUTION Use hearing protection d2ile operating the temporary drain valves during the instrument air purge / flush.
eeeeeeeee**eeeeee****eneeeeeeeee****eeeewe*ee**eeeeeeeeeeeeeeeeeeeeeeeen EU_TE:
The approxisate location of the temporary drain valves or closures are indicated by an asterisk on Attachment 7.
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TEMP CHANGE
, f;A2 eM19C: MrI-0006 WE J OF1 page : 12 Rev. : 2 8.
Open each temporary drain valve or closure on Train A for f
a minium of 15 min and then eloos the drain valve or g
I closure.
/
Maint. Initials Date 9.
Repeat Step 8 esing a 5 minute minium time interval of having temporary drain valves or closures open. Repeat as required sotil unter does not drain from 'the drain points. If more than one 5 min. openiciose interval per *.
drain point is required document it on the Chronological Log, Attachment 1.
l Maint. Initials Date 10.
Verify that all temporary drain valves and closures in Train A are closed.
I Maint. Initials Date g
- 4. UN W1I0l EMT fuse F34 in pnd fef-Pooz. Vedfy MPf-fo645 l
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hM Ml4-fD02. lkA iM fo5fddd 12.
Open each tempora drain valve $ N 1osure%onTrain$o g.
for a mini== of 15 min and then close the drain valve or closure.
I Maint. Initials Date 13.
Repeat Step 12 using a 5 minute minimum time interval of having the tamporary drain imives or closures open.
Repeat as required until unter does not drain from the drain points. If more than one 5 min. open/close interval per drain point is required, document it on the Chronolog-ical Img, Attachment 1.
/
Maint. Initials Date 14.
Close valves 1364-F106A and 1564-F1963.
I Operator Initials Date O
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f 00 Operator Initials Date 16.
Verify that all temporary drain valves and closures in Train 5 are closed.
/
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Maint. Initials Date 17.
Remove all temporary drain valves and closures and install the blank flanges.
/
Maint. Initials Date 5.2.2 Piping System Dry Out NOTE:
The following procedure is to be used for removal of noisture. This procedure may only be used with the Off-Gas System in Secured Status.
1.
Perform the following prerequisites:
a.
Rotate spectacle flange, IN64-D031 open.
/
Maint. Initials Date 4
b.
Full control power fuse F32 in the Of f-Gas Local Panel 3 1N64-P002. Derify that 1N64-F051A is open.
/
Operator Initials Date c.
Full control power fuse F34 in panel IN64-P002.
l Terify that 1564-F051B open.
/
Operator Initials Date d.
Full control power fuse F33 in panel 1N64-P002.
l Tarify that 1N64-F051C open.
l
/
Operator Initials Date O
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Page :
14 Rev. : 2 e.
Full control power fuse F35 in panel IN64-P002.
Verify that IN64-P051D open.
/
Operator Initials Date f.
Install a jumper around Dryer Beater contact CR15-2.
/
I & C Initials Date g.
Place the Clycol System in operation per SOI-N64.
NOTE:
Open the Clycol Outlet valve for the orver Train
~
to be used for drying the adsorber vessels.
O h.
At panel IN64-P004A(B) place DRTER CHILLER A(B)
CLYWL OUTLET ISOL, IN64-F 1682A(B) A016A(A0168)
I g control switch to OPEN.
001 1.
Verify that the Off-Cas Vault Refrigeration System N64(OGVRS) is shutdown.
O.
/
Operator Initials Date 2.
At 11113-P845, place ADSORBER TRAIN A DISCH VALVE, IN64-F053A, and ADSORBER TRAIN B DiSCH VALVE, IN64-F053B, centrol switches to OPEN.
/
Operator Initials Date NOTE:
Dryer Train A lineup is preferred, but Dryer Train B may be used.
3.
Perform the following:
a.
Close Dessicant 01?ur Train B(A) Outlet Isolation, IN64-F110B(A).
b.
Close Dest a.trn Dr, er Train B(A) Inlet Isolation, IN64-F090!(D.
/
Operator Initials Date 4.
Perform the following steps at Off-Gas Dryer System Train A(B), IN64-P004A(B).
a.
Inside panel place LOCKOUT CONTROL switch to MANUAL.
O b.
Place all selector switches on IN64-P004A(B) in STOP, CLOSE OFF.
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(T OM19C: MII-0006 V
Page :
15 Rev. : 2 c.
Place the following Regeneration Train A(3) valve control switches in OPEN:
1)
Process Air to Dryer A(B), IN64-F1686A(B)
A08A(A08B).
2)
Regen Air to Dryer A, IN64-F16SSA(B) A09A(A09B).
3)
Regen Air From Dryer C, IN64-F1690C(D)
A014C(A014D).
4)
Process. Air From Dryer C, IN64-F1692C(D)
A015C(A015D),
d.
Place REGEN BLOWER motor speed select switch in FAST.
e.
Adjust Dryer Heater Temperature Controller, IN64-R032A(B), for 200*F.
f.
Place REGEN BLOWER control switch in ON.
g.
Place DRYER HEATER control switch in ON.
h.
Verify HYGROMETER control switch in ON.
i.
Place Regen Air Bleed In, IN54-F1695A(B), control switch to OPEN.
/
Operator Initials Date 5.
Continue drying operations until a dewpoint of +45'F with a maximum relative humidity of 30% or less is reached and carbon loading of the absorber vessels is about to commence.
Determine the dewpoint temperature and relative humidity
(
as follows:
I a.
Measure the dew-point using the System 2 Hygrometer l
and the following method:
1)
Depress "CHAN, X",
where X represents the channel number to whch the probe is connected.
2)
Depress " MODE 1",
to display the dew-point.
l NOTE:
If the dew-point is not displayed, ccatinue to press a different "CHAN" position and 'hode 1" until the dew-point is displayed.
b.
Measure the temperature using the System 2 Hygrometer and the following method or local surface pyrometer.
O
{
1)
Depress "CHAN X", where X represents the Channel l
number to which the probe is connected.
i t
OM19C: MTI-0006 O-Page :
16 Rev. : 2 2)
Depress '9 MODE 2",
to display the dew-point.
NOTE:
If the temperature is not displayed, continue to press a different "CHAN" position and MODE 2 until the temper-ature is displayed.
c.
Compare these readings to Attachment 6 Psychrometric Chart, to determine the relative humidity.
Record the date and time that the dew point is +45'F and the maximum relative humidity is di30%.
/
/
/
Maint. Initials Date Time NQAD Date NOTE:
After temperature and humidity recording has been started, dewpoint temperature and relative humidity recording should con-tinue until carbon vessel loading is completed.
f')
d.
Record the dewpoint temperature and relative humidity
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once every 8 hrs. in the Chronological Log af ter the conditions in c above have been met.
5.2.3 Vessel Drying to Air Purge Transition 1.
Secure the drying process as follows:
a.
Place the Dryer Heater switch to 0FF.
b.
Continue circulation until adsorber vessel tempera-tures are approximately at ambient temperature, then place REGEN BLOWER control switch in OFF.
~
/
Operator Initials Date 2.
Shutdown the Glycol Cooling System per S0I-N64.
/
Operator Initials Date 3.
Close valve IN64-F090A(B).
/
Operator Initials Date O
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OH19C: MII-0006 Page : 17 Rev. : 2 4.
Place the following valve control switches at panel IN64-P004A(B) to CLOSE:
l Regen Air to Dryer A(B), IN64-F1688A(B) A09A(A09B) a.
b.
Regen Air From Dryer C(D), IN64-F1690C(D)
A014C(A014D) c.
Process Air From Dryer C(D). IN64-F1692C(D)
A015C(A015D) d.
Dryer Chiller A(B) Glycol Outlet Iscl, IN64-F1682A(B)
A016A(A016B) f Regen Ajr Bleed In, IN64-F1695A(8) A071A(A0218)
Operator Initials Date 5.
Place the PROCESS AIR FROM DRYER A(B), IN64-F1692A(B) control switch at panel IN64-P004A(B) to OPEN.
/
Operator Initials Date 6.
Open Desiccant Dryer Train A Air Purge Isol, IN64-F094A(B).
Os
/
Operator Initials Date 7.
Throttle open Af terfilter Inlet Test Conn, IN64-F055 to establish a desiccated instrument air purge.
/
Operator Initials Date 8.
Periodically monitor the air flow out of IN64-F055 and i
throttle IN64-F055 as directed by the job supervisor to sustain an adequate flow through the adsorber vessels to maintain the of dewpoint +45'F and a maximum relative humidity of 30%. -
5.3 Carbon Loading NOTE:
1.
The Maintenance Supervisor will ensure that an hourly fire watch shall be established in the Off-Gas Building in the vicinity of the carbon loading area whenever the area is unmanned.
2.
Activated carbon is easily cryshed or broken; handle with care during the loading process.
O
.5
OM19C: MII-0006 Page :
18 Rev. : 2
- 3.
Minimize exposure of activated carbon to atmospheric condition; opening of containers shall be done in humidity controlled environments.
4.
Control of vessel atmosphere shall be maintained to preclude moisture adsorption by activated carbon.
Maintain a purge of dessicated instrument air prior to and during loading process.
5.
A humidity controlled enclosure shall be con-structed with an airlock type access for entry and exit of personnel and materials.
6.
Loading devices shall be installed in a manner to eliminate exposure of vessel and activated carbon to non-humidity controlled atmosphere.
7.
The recommended loading order is 12A, 13A, 14A, 15A, ISB, 14B, 13B, 128.
8.
Ensure the hopper grating cover is installed to prevent the entry of foreign material into the carbon vessels.
9.
Sufficient charcoal for complete loading of a vessel should be pre-staged prior to starting the loading operation.
1.
Perform the following prerequisites:
l a.
Verify that thermocouples are installed in the vessel to be loaded.
L
/
l 1 & C Initials Date b.
Verify that all the work on vessel related piping has been completed.
/
Maint. Initials Date c.
Stage supplies necessary for carbon loading.
/
Maint. Initials Date d.
Verify dry instrument air purge through the adsorber vessels is being maintained.
Maint. Initials Date
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OM19C: MTI-0006 Page :
19 Rev. : 2 2.
Record the vessel number that will be loaded:
/
Maint. Initials Date NOTE:
Steps 3 and 4 may be performed concurrently.
3.
Remove loading flange and install loading distribution flange assembly (See Attachment 8).
/
Maint. Initials Date 4.
Install feed hopper; seal hopper to floor surface (see ).
/
Maint. Initials Date 5.
Connect hopper to loading distribution flange with flexible duct.
()
Maint. Initials Date NOTE:
Sample time during loading will be at the discretion of the Chemistry Unit.
6.
Obtain 2 grab samples per vessel for analysis.
/
Chem. Initials Date 7.
Verify the enclosure atmosphere has a dewpoint temperature of +45'F and a maximum relative humidity of 30%.
/
NQAD Initials Date 8.
Fill vessel by emptying carbon drums into feed hopper. Record net weight of each drum loaded into vessel on Attachment 9.
Calculate and record total weight loaded into each vessel on.
NOTE:
For vessels 12A and 12B, load minimum of 8300 lbs into hopper.
For vessels 13A and 13B, 14A and 14B, 15A and ISB, load minimum 4600 lbs into hopper.
O
l TEMPCHANGE 1
PAV OM19C: MII-0006 v
Fage : 20 Rev. : 2 NOTE:
If more activated carbon is needed in the vessel being loaded, reinstall loading distribution flange assembly and perform Steps 4 through 7 until suf-ficient carbon has been loaded or if the Chemistry Supervisor determines that less than I container is needed to complete the loading, manual loading of carbon into the vessel may be performed.
9.
When sufficient carbon has been installed into vessel be.Ang loaded, remove loading distribution flange assembly, and verify activated carbon level has met requirements stated below:
Carbon level in Vessel 12A, 12B covers the top thermocouple.
/
NQAD Initials Date Carbon level in Vessel 13A,13B,14A,14B,15A, ISB, covers the middle thermocouple.
/
1 NQAD Initials Date j
10.
Remove loading distribution flange assembly.
l
/
Maint. Initials Date NOTE:
A temporary gasket may be used as an interim measure until conditions permit the installation of the permanent gasket.
11.
Install blind loading flange with the permanent gasket.
/
Maint. Initials Date 5.4 System Restoration NOTE:
Perform this section only af ter all charcoal loading has been completed. N/A these steps when the performance of this section will not be done.
1 Close oesiccant Dryer Train A Air Purge Isol, IN64-F094A(B).
/
Operator's Initials Date h
2.
When air floes through Afterfttter Inlet Test Conn IN64-F055, has stopped, close IN64-F055.
/
Operator's Initials Date
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TEMP CHANGE
- 00/
CM19C: MrI-0006 O
PAG d OF I Fage : 20d Rev. : 2 u
a.
Isolate the adsorber vessels as follows:
TG-Replace control power fuse F32 in the Of f-Cas Local Panel B gg/
a.
IN64-P002. Verify that valve IN64-F051A is closed.
/
Operator Initials Date O
e l
l O
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g PQ$IF Page : 21 CM19C: MII-0006 g
Rev. : 2 b.
Replace control power fuse F34 in panel IN64-P002. Verify that valve IN64-F051B is closed.
l
/
Operator Initials Date c.
Replace control power fuse F33 in panel 1N64-P002.
Verify that valve IN64-F051C is closed.
/
Operator Initials Date d.
Replace control power fuse F35 in panel IN64-P002.
Verify that valve IN64-F051D is closed.
/
Operator Initials Date e.
At IU13-P845, place ADSORBER TRAIN A DISCB VALVE, IN64-F053A, and ADSORBER TRAIN B DISCB VALVE, IN64-F053B, con-trol switches to OFF.
/
Operator Initials Date NOTE:
The following steps may be performed concurrently with loading of cerbon into the adsorber vessels.
4 Perform the follcwing:
a.
Place the following valve control switches in CLOSE:
1)
A08A(B), Process Air To Dryer A, IN64-F1686A(B).
Tc_
1)
A09A(B), Regen Air To Dryer A, IN64-F1688A(B).
00l 3)
A014C(D), Regen Air From Dryer C. 1N64-r1690C(D).
l l
l 4)
A015C(D), Process Air From Dryer C, IN64-F1692C(D).
t 5)
A016A(B) Dryer Chiller A Clycol Outlet Isol, IN64-F1682A(B).
b.
Adjust Dryer Heater Temperature Controller, IN64-R032A(B),
for 495'F.
/
Operator Initials Date I
-w,
OM19C: MTI-0006 A
Page : 22 V
Rev. : 2 c.
Restore Spectacle Flange IN64-D031 to the blank installed position.
/
Maint. Initials Date d.
Reconnect electrical lead N64-A1391 on terminal board EE-2 in Of f-Gas Control Panel 1H13-P845 and verify that valve IN64-F045 is open.
/
I & C Initials Date e.
Remove the jumper from Heater Dryer contact CR 15-2.
/
I & C Initials Date f.
Open Desiccant Dryer Train B(A) Inlet Isolation Valve IN64-F090B (A).
g.
Open Dessicant Dryer Train B(A) Outlet Isolation Valve IN64-F110B (A).
()
/
Operator Initials Date 6.0 POST MAINTENANCE 6.1 Ensure that all tools and equipment are removed from the vault.
/
-Maint. Initials Date 6.2 Secure the vault hatch covdr.
/
Maint. Initials Date 6.3 Ensure that area housekeeping requirements per, PAP-0204, have been maintained.
/
Maint. Initials Date i
6.4 When carbon loading is complete, return the system to normal in accordance with VLI-N64, Of f-Cas System.
t
(
Operations Initials Date
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OM19C: MII-0006 Page :
23 Rev. : 2 7.0 ACCEPTANCE CRITERIA 7.1 Vessel meets Class D cleaniness requirements of PAP-0204 and FCR-03743.
7.2 Carbon level in vessel meets the applicable requirements stated in Section 5.3, Step 8.
8.0. REFERENCES 8.1 General Electric Co. Install'ation Instruction Manual 22A4605.
8.2 P.X. Engineering Co. Charcoal Absorber Vessel Instruction Manual File No. 186-G.
8.3 General Electric Co. Procedure CEP-IP-0040, Filling of Charcoal Adsorbers.
8.4 General Electric Co. Design Specification 22A3089, Off-Gas System Low Temperature.
8.5 PAP-0516, Confined Space Entry.
8.6 PAP-1402, Control of Lif ted Leads, Jumpers. Temporary Electrical Devices and Mechanical Foreign Items.
8.7 PAP-1401, Equipment Tagging.
8.8 PAP-1913, Transient combustibles.
l 8.9 Field Question, FQ 43001.
8.10 FDDR-KL1-315.
8.11 FDDR-KL1-5146.
(
8.12 VLI-N64.
8.13 FCR No. 03743.
i 9.0 ATTACHMENTS 9.1 Attachment 1 - Form: MrI-0006-1, Chronological Log.
9.2 Attac'hment 2 - System Valve Lineup.
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24 Rev. : 2 9.3 Attachment 3 - Figure 1, Vacuum Line and Water Line Arrangement.
9.4 Attachment 4 - Figure 2, Vacuum Line Arrangement.
9.5 Attachment 5 - Form: MII-0006-2 (Sheets a-h), Vessel Drying Valve Lineup.
9.6 Attscheent 6 - Figure 3, Psychrometic Chart.
9.7 Attachment 7 - Figure 4, Temporary Drain Valve Sketch.
9.8 Attachment 8 - Figure 5, Sketch of Loading Apparatus.
9.9 Attachment 9 - Form:
MII-0006-3, Vessel Carbon Loading Record.
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Page :
25 Rev. : 2 Form: MII-0006-1 1
Chronological Log Date Summary Initials i
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Prepared By:
Date:
Maintenance Supervisor Results Accepted By:
Date:
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Page :
26 Rev. : 2 System Valve Line-Up Valve Name Position 1N64-F045 Adsorber Train Bypass Valve CLOSED IN64-F062 Bypass Line Block Valve CLOSED IN64-F521A Charcoal Adsorber Diff Press Inst Root CLOSED IN64-F051A Adsorber Train A Inlet Valve CLOSED IN64-F051B Adsorber Train B Inlet Valve CLOSED IN64-F051C Adsorber Train A D012A Bypass Valve CLOSED INi>4-F051D Adsorber Train B D012B Bypass Valve CLOSED IN64-F052A Adsorber Train A to Rad Mon Smpl.
CLOSED IN64-F052B Adsorber Train B to Rad Mon Smpl.
CLOSED IN64-F053A Adsorber Train B Disch Valve CLOSED 4
IN64-F053B Adsorber Train A Disch Valve CLOSED IN64-F049B Charcoal Adsorber Outlet Drain OPEN IN64-F061 Charcoal Adsorber Out to Rad Mon Smpl.
CLOSED IN64-F055 Afterfilter Inlet Test Conn CLOSED IN64-F068 Charcoal Adsorber First Inlet Drain CLOSED IN64-F049A Charcoal Adsorber Second Inlet Drain OPEN IN64-F047 Rad Mon Sample Return Isol CLOSED i
IN64-F521B Charcoal Adsorber Byp Line Test Conn CLOSED I
IN64-F1697 Charcoal Adsorber Byp Line Fress Inst Root CLOSED IN64-F110A Desiccant Dryer Train A Out,let Isol CLOSED IN64-F110B Desiccant Dryer Train B Outlet Isol CLOSED
()
IN64-FS22A OG Afterfilter Diff Press Inst Root CLOSED I
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p OM19C: MII-0006 V
Page :
27 Rev. : 2 (Cont.)
System Valve Line-Up Valve Name Position i
IN 64-F056A Af terfilter A Inlet Isol CLOSED IN64-F056B Af terfilter B Inlet Isol CLOSED IN64-F082A Adsorber A Purge Inlet Stop Check CLOSED IN64-F082B Adsorber B Purge Inlet Stop Check CLOSED 1N64-F631 Charcoal Adsorber into RAD MONITOR Sample CLOSED I
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OM19C: MrI -0006 O
Page :
28 Rev. : 2 Vacutan Line and Water Line Arrangement
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ELEV. 602', Glycol Cooler Area A/03 GLYCOL COOLER A IN64-F1676A O INLET ISOLATION A/03 GLYCOL COOLER A IN64-F1678A I INLET SOLENOID A/03 GLYCOL COOLER B IN64-F1676B 0 INLET ISOLATION A/03 CLYCOL COOLER B IN64-F1678B I INLET SOLENOID A/03 GLYCOL COOLER C IN64-F1676C 0 INLET ISOLATION O A/03 GLYCOL COOLER C IN64-F1678C I i INLET SOLENOID e . ~ N OM19C: MII-0006 Page : 31 Rev. : 2 (Cont.) Form: MII-0006-2b COL VALVE VALVE REQ VERIF LOC NAME NUMBER POS INIT INIT RDfARKS B/03 GLYCOL COOLER C IN64-F1677C 0 OITILET ISOIATION B/03 GLYCOL COOLER B IN64-F1677B 0 w OUTLET ISOLATION B/03 GLYCOL COOLER A IN64-F1677A 0 OITILET ISOLATION B/03 GLYCOL TANK PUMP 1N64-F1681 0 SUCTION VALVE C/03 GLYCOL PUMP C IN64-F1680C 0 SUCTION ISOL C/03 GLYCOL PUMP B IN64-F1680B 0 \\ SUCTION ISOL C/03 GLYCOL PUMP A IN64-F1680A 0 SUcrION ISOL C/04 GLYCOL PUMP A IN64-F078A 0 DISCHARGE ISOL C/04 GLYCOL PUMP B IN64-F078B 0 DISCHARGE ISOL l C/04 GLYCOL PUMP C IN64-F078C 0 DISCHARGE ISOL Off-Gas Desiccant Dryer A&C Room B/05 DESICCANT DRYER TRAIN IN64-F094A X A AIR PURGE ISOL B/05 DESICCANT DRYER TRAIN IN64-F094B X B AIR PURGE ISOL Af terfilter Room, Platform ELEV. 609' l A/05 OG AFIERFILTER DIFF IN64-F522A X l PRESS INST ROOT l l v -w-- e + - - - - -, -,,-meve-e.--v-----, ,n-,-r--- - - - - - - - - e-- ,---,-------n ,a OM19C: MII-0006 Page : 32 Rev. : 2 (Cont.) Form: MrI-0006-2c COL VALVE VALVE REQ VERIF LOC NAME NUMBER POS INIT INIT REMARKS B/05 AFTERFILTER INLET IN64-F055 X CAP INSTALLED TEST CONN Off-Gas Bldg. ELEV. 584' l C/05 DESICCANT DRYER IN64-F110B O TRAIN B OUTLET ISOL Of f-Gas Regenerator B Room C/05 DRYER CHILLER B IN64-F099B TH 5/8 TURN OPEN GLYCOL INLET C/06 DESICCANT DRYER TRAIN IN64-F106B X B AIR PURCE ISOL 0 C/06 r DRYER CHILLER B IN64-F064B O LOOP SEAL ISOLATION Desiccant Dryers B&D Control Panel IN64-P0048 VENDOR IABEL (AO-8B) PROCESS AIR TO IN64-F1686B X SW IN CLOSE DRYER B VENDOR IABEL (AO-9B) REGEN AIR TO IN64-F1688B X SW IN CLOSE DRYER B VENDOR IABEL (AO-14B) RECEN AIR FROM IN64-F1690B X SW IN CLOSE DRYER B VENDOR 1ABEL (AO-ISB) PROCESS AIR FROM IN64-F16928 X SW IN CLOSE DRYER B VENDOR IABEL (AO-20B) O REGEN AIR BLEED OUT IN64-F1694B X SW IN CLOSE i ~. - _ - _ - _ -, - _ - _. OM19C: MTI-0006 C'i Page : 33 Rev. : 2 (Cont.) Form: NII-0006-2d COL VALVE VALVE REQ VERIF LOC NAME NUMBER POS INIT INIT REMARKS VENDOR IABEL (AO-16B) DRYER CHILLER B GLYCOL IN64-F1682B X SW IN CLOSE OUTLET ISOL VENDOR IABEL (AO-21B) REGEN AIR BLEED IN IN64-F1695B X SW IN CLOSE VENDOR LABEL (AO-8D) PROCESS AIR TO IN64-F1686D X SW IN CLOSE DRYER D VENDOR IABEL (AO-9D) REGEN AIR TO DRYER D IN64-F1688D X SW IN CLOSE VENDOR LABEL (AO-14D) REGEN AIR FROM IN64-F1690D X SW IN CLOSE DRYER D VENDOR LABEL (AO-15D) PROCESS AIR FROM IN64-F1692D X SW IN CLOSE DRYER D i Desiccant Dryers A&C Control Panel, IN64-P004A VENDOR IABEL (AO-8A) PROCESS AIR TO IN64-F1686A X SW IN CLOSE DRYER A VENDOR IABEL (AO-9A) REGEN AIR TO DRYER A IN64-F1688A X SW IN CLOSE VENDOR 1ABEL (AO-14A) O-REGEN AIR FROM IN64-F1690A X SW IN CLOSE DRYER A ,,-----n --,---------------,--r, ,,v--,n-, d OM19C: MTI-0006 Page : 34 Rev. : 2 (Cont.) Form: MII-0006-2e COL VALVE VALVE REQ VERIF LOC NAME NUMBER POS INIT INIT REMARKS VENDOR LABEL (AO-15A) PROCESS AIR FROM IN64-F1692A X SW IN CLOSE DRYER A VENDOR LABEL (AO-20A) REGEN AIR BLEED OUT IN64-F1694A X SW IN CLOSE VENDOR IABEL (AO-16A) DRYER CHILLER A GLYCOL IN64-F1682A X SW IN CLOSE OUTLET ISOL VENDOR IABEL (AO-21A) O REGEN AIR BLEED IN IN64-F1695A X SW IN CLOSE VENDOR LABEL I (AO-SC) PROCESS AIR TO IN64-F1686C X SW IN CLOSE DRYER C VENDOR IABEL (AO-9C) REGEN AIR TO IN64-F1688C X SW IN CLOSE DRYER C VENDOR IABEL (AO-14C) REGEN AIR FROM IN64-F1690C I SW IN CLOSE DRYER C VENDOR 1ABEL (AO-15C) PROCESS AIR FROM IN64-F1692C X SW IN CLOSE DRYER C l Of f-Gas Local Panel Area B/05 DESICCANT DRYER IN64-F110A O TRAIN A OUTLET ISOL OM19C: MII-0006 Page : 35 Rev. : 2 (Cont.) Form: MII-0006-2f COL VALVE VALVE REQ VERIF LOC NAME NUMBER POS INIT INIT RDIARKS B/05 DRYER CHILLER A IN64-F099A TH 5/8 TURN OPEN GLYCX)L INLET B/06 DESICCANT DRYER TRAIN IN64-F106A X A AIR PURGE ISOL B/06 DRYER CHILLER A IN64-F064A 0 LOOP SEAL ISOLATION Of f-Gas Cooler Condenser Room B/05 COOLER CONDENSER B IN64-F080B TH 5/8 TURN OPEN GLYCOL INLET B/05 COOLER CONDENSER A IN64-F080A TH 5/8 TURN OPEN GLYCOL INLET . O Valve Room C/03 ADSORBER TRAIN B IN64-F052B X TO RAD HON SMPL C/03 CHARCOAL ADSORBER IN IN64-F631 X TO RAD HON SMPL C/03 CHARCOAL ADSORBER IN64-F068 X FIRST INLET DRAIN C/03 CHARCOAL ADSORBER IN64-FQ49A X SECOND INLET DRAIN C/03 CHARCOAL ADSORBER IN64-F049B X OUTLET DRAIN i C/03 ADSORBER TRAIN A IN64-F052A X TO RAD M)N SMPL CAP INSTALLED C/03 ADSORBER A PURGE IN64-F082A X IN OVERHEAD INLET STOP CHECK O __._.c. _,.._,__,y --.y,__, ,,,,y _,,,,y,, ,-- y w-w.w.-,,-y -,--,-g -,m--- ,--y-y----- c--. ~ OM19C: MII-0006 Page : 36 Rev. : 2 (Cont.) Form: MII-0006-2g COL VALVE VALVE REQ VERIF LOC NAME NUMBER POS INIT INIT REMARKS C/03 ADSORBER A PURGE IN64-F061 I IN OVERHEAD INLET CHECK IN OVERHEAD C/03 CHARCOAL ADSORBER BYP 1N64-F521B X CAP INSTALLED LINE TEST CONN C/03 RAD MON SAMPLE IN64-F047 X IN OVERHEAD RETURN ISOL CAP INSTALLED C/03 ADSORBER B PURGE IN64-F082B X IN OVERHEAD INLET STOP CHECK C/03 CHARCOAL ABSORBER IN64-F521A X IN OVERHEAD DIFF PRESS INST ROOT C/03 CHARC0AL ADSORBER BYP 1N64-F1697 X IN,,0VERHEAD LINE PRESS INST ROOT Off-Gas Bldg. ELEV. 620' B/04 AFTERFILTER A IN64-F056A X INLET ISOL B/04 AFIERFILTER B IN64-F056B X INLET ISOL B/05 DESICCANT DRYER IN64-F090A 0 TRAIN A INLET ISOL B/05 PREFILTER A IN64-F041A X OUTLET ISOL B/06 DESICCANT DRYER IN64-F090B 0 TRAIN B INLET ISOL B/06 PREFILTER B OUILET IN64-F041B X ISOL O OM19C: MTI-0006 O Page : 37 Rev. : 2 (Cont.) Fo rm: MTI-0006-2h 00L VALVE VALVE REQ VERIF LOC MAME NUMBER POS INIT INIT REMARKS Of f-Gas Building, ELEV. 620', Panel IN64-P002 SW LABELED SSIA ADSORBER TRAIN A IN64-F05 LA X SW IN CLOSE INLET VALVE SW LABELED SSIB ADSORBER TRAIN B IN64-F051B X SW IN CLOSE INLET VALVE SW LABELED S51C ADSORBER TRAIN A IN64-F051C X SW IN CLOSE D012A BYPASS VALVE SW LABELED S5ID ADSORBER TRAIN B IN64-F051D X SW IN CLOSE D012B BYPASS VALVE i ( l i O l i
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~m. OM19C: MII-0006 f 2 4J N // " I 2 L h, l i 4:' ', 'l/ f Psychrometric Chart h'i/ EC l bN ~ ~ ~ ~ y,:bq s 8 J y Y**** b 5. '.k.7 _'] bb tV ? : ; b vm m. ..wmauQO,,,.. ~ ~ I /' ^'.*r )\\@.h:?f)5
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Page : 41 - LAST Rev. : 2 Form: Mil-0006-3 Vessel Carbon Loading Record 1)
Adsorber Vessel
- 3) Ambient Temperature No.
- 4) Relative Humidity 2)
Date
- 5) Carbon Apparent Density 8
lb/ft Carbon Weight (1bs)
Drum No.
Batch No.
(on drums)
O Time Loading Began Time Loading Inded Charcoal Height l
O MTI2/D/ cap
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