ML19224B265
| ML19224B265 | |
| Person / Time | |
|---|---|
| Site: | Crane  |
| Issue date: | 01/31/1976 |
| From: | Metropolitan Edison Co |
| To: | Mullinix W NRC/IE |
| References | |
| TM-0288, TM-288, NUDOCS 7906140316 | |
| Download: ML19224B265 (27) | |
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'DfI DOCUMENTS N-d.O hr DOCUMENT NO:
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METROPOLITAN EDISON COMPANY.
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FINAL SYSTDi DESCRIPTION (Index No. 8)
CONDENSER AIR EXTRACTION SYSTEM (B&R Dwg. No. 2010, Rev. 13)
JERSEY CENTRAL POWER & LIGHT COMPANY THREE MILE ISLAND NUCLEAR STATION UNIT NO. 2 Issue Date:
January, 1976 Prepared by:
.J.B.
Hooper
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Burns and Roe, Inc.
700 Kinderkamack Road
- Oradell, N.J.
07649 195 156 9
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TABLE OF CONTENT _S FOR CONDENSER AIR EXTRACTION SYSTEM Section Pace
1.0 INTRODUCTION
1 1.1 System Functions 1
1.2 Summary Description of System 1
1.3 System Design Requirements 3
2.0 DETAILED DESCRIPTION OF SYSTEM 4
2.1 Components 4
2.2 Instruments, Controls, Alarms and 9
Protective Devices 3.0 PRINCIPAL MODES OF OPERATION 10 3.1 Startup 10 3.2 Normal Operation 11 3.3 Shutdown 14 3.4 Special or Infrequent Operation 15 4.0 HAZARDS AND PRECAUTIONS 15 195 157 m
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L l-APPEND:?_X TITLE TABLE NO.
Vacuum Pumps and Accessories 1
Pump and Valve Conditions in Various 2
Modes of operation Instrumentation and Controls 3
Panel-Mounted Annunciators and 4
Computer List 9
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cot! DENSER AIR EXTRACTION SYS'?EM
1.0 INTRODUCTION
1.1 System Functions The function of the condenser air extraction system is to remove air and noncondensible gases from the hot and cold surface condensers to which the main turbine exhausts, thereby increasing the overall efficiency of the power generating plant.
The exhausted air is expelled ultimately to the atmosphere via the unit vent.
The following systems have an interface with this system.
(Drawing numbers refer to Burns and Roe, Inc. flow diagrams) :
a.
Heating and Ventilation, Auxiliary Building (Dwg.No.2042) b.
Demineralized Service Water (DWg.No.2007) c.
Decay Heat Removal Sump (Dwr.No.2045) d.
Circulating Water System (Dwg. No. 2023) e.
Feed and Condensate (Dwg. No. 2005) 1.2 Summary Description of System (Re f. B&R Dwg. No. 2010, Rev.13)
The air extraction system is designed to reliably remove air and noncondensible gases from within the hot and cold condensers to prevent back pressure buildup.
The air removal system consists of three vacuum pumps, two of which are normally in operation for routine purging and a third maintained in standby with automatic starting capabilities should either one of the two normally operating pdmps fail.
The extracted gases are routed to the Auxiliary Building Ventilation System where they are monitored and filtered, if necessary, prior to release to
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the atmosphere.
Refer to System Description, Index No. 36, Auxiliary Building - Heating and Ventilation System.
195 159
_1_
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e The air removal system primarily consists of three Ingersoll-Rand AXI-VAC vacuum pump assembly units, capable of taking suction from a common header that is connected to two (hot and cold) condenser shells, operating at different vacuum levels.
Normally, two pulaps are.used for holding operation with the third pump performing the standby and hogging functions.
Operation of the standby pump is initiated automatically by failure of one of the operating pumps or if a low vacuum condition appears in either condenser shell.
Each vacuum pump unit contains a cooler that uses water available from the Circulating Water System at maximum temperature of 95F and maximum pressure of 75 psig.
An inlet accumulator (separator) in the unit is equipped with internal baffles to control the rate of water carry-over to the first stage and to safeguard the unit against water slugs of greater than normal magnitude.
The moisture separator and condensate reservoir of this unit is in the cavity section of the base, which serves as a receiver-separator for the extracted air and vapor mixture discharged from the condenser vacuum pump.
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Two gland steam exhausters extract noncondensible gases from the gland steam condenaer and exhaust into this system.
Two knockout drums provided in the exhaust lines remove condensate from the system piping prior to final exhaust.
Each drum contains a drain off for the condensate.
Final exhaust lines are routed to Auxiliary Building ventil7 tion system.
The system is designed with ir.strumentation to continuously monitor condenser vacuum and radiation levels o'f the. exhausted air.
Alarms are provided for low condenser vacuum (High pressure), vacuum pump trip, and high radiation level.
1.3 System Design Requirements All system piping and accessories are designed for Class II seismic conditions and for Zcne 1 loads.
All system piping up to interfaces with associated systems is designed for 150 psig and 200F (Symbol J) and is classified Conventional (Class C), designed, fabricated, inspected and erected in accordance with ANSI B31.1.0, Power Piping.
In combined operation, with all three air removal units running, a total volume of 150,000 cubic feet from 0 to 26 inches of Hg (vacuum) can be evacuated from the condensers within 60 minutes.
-I Monitoring of system performance and pump r ' trol is pro-vided in the Control Room on the Turbine Auxiliary Monitoring Panel No. 17 and the Turbine Control Panel No.
5.
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Provisions are made to drain condensate and remove suspended
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radioactive solids by filtration.
Two knockout drums in the exhaust line provide for condensato removal from system piping to final exhaust.
Each drum contains a drain-off for the condensate.
Filtering for radioactivity removal is described in System Description No. 36, Auxiliary Building - Heating and Ventilating System.
2.0 DETAILED DESCRIPTION OF SYSTEM 2.1 comoonents The design of the condenser air extraction system incorporates redundant equipment where failure of a major component could affect normal operation of air removal from the condensers.
Three air removal units are provided.
Two are normally in use and the third serves as backup to ensure system reliability and to permit periodic change-over.
Indication and/or alarm of system parameters such as air flow, pressure, and radiation level are provided to monitor system performance and to alert operating personnel of any abnormal conditions during system operation.
The components described consist of the air removal units and major system valves.
2.1.1 Air Removal Units : VA-P-1A, 1B and 1C Each air removal unit (see Table 1) consists of a vacuum pump, motor driver, cooler, moisture separator, reservoir, intake
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w accumula^or, interconnecting piping, valves, gages, switches, solenoids and automatic valves.
The air removal units are physicall.y located in the basement area of the Turbine Building (Elevation 281'-6").
The vacuum pumps are fully automatic, two-s tage, rotary, positive-displacement, helical-lobe, screw-type, water-sealed and water-cooled.
The pumps are furnished as a packaged unit.
The pumps, of ferrous construction, are rated at 20 scfm holding capacity with an inlet pressure of 1 inch Hg (absolute).
The performance at this pressure is based on cooling water to the seal water cooler being maintained at least 7.5 F below air vapor inlet temperature (71.5 F).
The air removal unit's intake separator (accumulator) is equipped with a vertical baffle for separating large volumes of liquid from the inlet gas.
The separator allows water carried over from the condenser to collect and drain at a controlled rate into the vacuum pump inlet.
The unit contains a diaphragm operated butterfly valve at the inlet to the moisture separator which prevents air from flowing backward through the pump rotors on shutdown and permits a pump to be idle under full system vacuun. The discharge port of the unit enables compressed gas to be discharged into the reservoir when the predetermined pressure and vol'_2e have been reached. The condensate reservoir, which serves as the receiver-separator for the gas mixture, contains neveral cavities, a floc t valve, an overflow, and a
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discharge port to store and control the flow of air and condensate. -
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Heavy duty sleeve bearings and tapered land thrust bearings are provided and sized to carry both radial and thrast loads under all operating conditions.
The sleeve bearings on the vacuum pumps are furnjshed with dual-olement, 100-ohm, platinum-resistance, temperature detectors.
A self-contained, forced-feed lubrication system distributes cleaned and cooled oil to the bearings of the vacuum pump.
The lubrication system for each vacuum pump consists of a main hp auxiliary oil pump, an oil cooler (shaft drisen) oil pump, a with bypass valve, an oil filter, oil level gauge, a dual pressure switch and a relief valve.
The auxiliary pumps are driven by 1725 RPM, 460 volt, 3-phase, 60 hz motors with Thermotector*-type stator winding temperature detectors (thermal switches), and are powered from MCC 2-31A &
2 -41A, and are controlled by the vacuum pump control switches.
The Auxiliary Oil Pump is self-priming and is utilized to draw lubricating oil from the reservoir, and circulate it through the filter and the temperature controlled by-pass valve, to the bearings and gears of the vacuum pump prior to start-up of the unit.
Af ter the vacuum pump is started, the shaft driven oil pump will supply all of the lubrication requirements, the relief valve will maintain lube oil pressure between 15 and 25 PSIG, and the temperature controlled by-pass valve will control oil flow through the cooler to maintain oil inlet temperature at approximately 110 F.
The dual pressure switch functions in the control of both the auxiliary oil pump and the vacuum pump as
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- Thermotector -
General Electric trade name for this type of temperature detector.
Thermoquard is Westinghouse trade name for their type of temperature detector.
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.g follows: by shutting down the Auxiliary oit pumb when demand is being met by the shaft driven oil pump (14 PSIG); starting the Auxiliary oil pump when, during ra', sum pump opera tion, the shafc driven pump fails to meet lubrication requirements (12 PSIG) ;
preventing the vacuum pump from starting until oil pressure is established by the auxiliary oil pump (12 PSIG) ; and by shutting down the vacuum pump if there is insufficient lube oil pressure (10 PSIG).
A description of the lube oil pump operation and control system and interaction with the vacuum pump control circuit is given in Table 2.
The three vacuum pump drivers are GE 200 HP, 3600 RPM, squirrel-cage, induction-type motors.
The motors are self-ventilated and contain open drip-proof enclosures with screened openint a The motors are powered from the 480V 2-31A and 2-41A motor control centers as indica ted in Table 1.
Operation of the motors is controlled from switches located in Ehe Control Room, Turbine Auxiliary Monitoring Panel No. 17.
To prevent ambient air from entering the vacuum pump, cooled seal water is drawn from the water reservoir and passed through labyrinth seals located at each end of both rotor shafts.
The seal water cooler of the air removal unit maintains the seal water temperature at 7.5 F above the cooling water inlet temperature.
Coo]ing water is obtained from the circulating water system and fic.ir through the cooler at 300 gpm, maximum.
The use of circulating vater for cooling insures that seal water temperature will always be lower than saturation temperature of the condenser.
Fcr additional information on the air removal
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units, refer to Ingersoll-Radd AXI-VAC Instruction Manual (27.00).
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2.1.2 Condenser; CO-C-1A, 1B For a description of the condenser, refer to Circulating Water System Description, Index No. 15.
2.1.3 Gland Steam Exhausters GS-E-1A, B and Gland Steam Condenser GS-C-1 The gland steam exhausters and the gland steam condenser are located in the Turbine Building at El.
305'-0".
The gland steam condenser condenses turbine gland steam and is exhausted by two motor-driven suction pumps to the air extraction exhaust line.
Gland Steam Exhauster GS-E-LA is powered from MCC 2-31A, and GS-E-1B is powered from MCC 2-41A.
Both exhausters are controlled from panel 17.
Operating lights and alarms are also on panel 17.
For additional data on the exhausters and condenser, refer to the Westinghouse Instruction Manual (1.00).
2.1.4 Maior System Valves VA-P-1B Suction Valves VA-V2A, V2B Two 12-inch, 150 lb.,
125F, CS air-cylinder operated, butterfly valves with adjustable rubber seats and vacuum seal are located in the condenser air extraction line (VA-V2A-cold condenser, CO-C-1A; VA-V2B hot condenser CO-C-1B).
The two valves control the intake to pump VA-P-lB.
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.y Valves v2A and V2B are interlocked with motors 1B and 1C or lA.
Pump and valve operation are covered in paragraph 3.2.
Each valve can be closed by means of a control switch (VA-PHS-3483 for valve V2A, VA-PHS-3482 for valve V2B) located on Turbine Auxiliaries Panel 17 in the Control Room.
Condenser Vacuum Pump Inlet Valves VA-V4A, V4B, and V4C Three 14-inch, 150 lb. 125F, diaphragm operated, cutterfly valves are located on each separator assembly of the Air Removal Unit (V4A - Unit VA-P-1A, V4B - Unit VA-P-lB, and V4C - Unit VA-P-lC).
The three valves control the intake to the three vacuum pumps.
The valves are furnished with the pumps and are interlocked with J respective pump motors lA, 1B and 1C to open or close the inlet extraction line to the separator of the pump unit.
The valves are closed when the pumps are not operating.
Upon pump start, the intake valve opens to permit air extraction from the condenser into the separator.
I f, for example, pumps VA-P-1A and VA-P-lC are selected for normal duty, then valves VA-V4A and VA-V4C will open.
With pump VA-P-1B inoperative, valve VA-V4B remains closed until the pump is started.
Pump and valve operation under various modes of operation are described in paragraph 3.2.
Condenser Vacuum Breaker Valves VA-V7A, VA-V7B Two 6-inch, 150 lb.,
125F, CS, motor cperated, gate valves are located in the 6-inch piping lead to nozzle number 52 on both condensers.
The valves are filled with demineralized water prior to startup in order to create a vacuum seal for the condenaer.
The valves function to break condenser vacuum
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'when required.
Both valves are opened simultaneously by operating manually controlled pushbutton switch VA-FHS-3158 on Panel No. 5 in the Control Room.
As the valves open, the amount of water in the valve reservoir discharges through the 6-inch, 3.5 foot long piping, through inlet 52, and into the condenser to release vacuum.
When the valves are open, alarm VA-KA-3158 annunciates on Panel 17 in the Control Room.
The valves VA-V7A and VA--V'B
.re electrically powered from motor control center 2-41A and 2-31A, respectively.
2.2 Instruments, controls, Alarms and Protective Devices Instrumentation is provided for the condenser air extraction system (Table 3) to monitor overall system operation and equipment performance.
Monitorir.g of the air removal units is accomplished locally by providi.Tg flow control indica tors measuring discharge air from the i'cuum pumps, temperature indicator for measuring operating t emperature of the pumps,
water level indicator, and level indicators for the oil reservoir.
These air removal unit indicators era located on the assembly.
Monitoring of condenser vacuum exhaust beta-gamma radiation levels is accomplished by means of a plastic scintillation detector (located in the exhaust line), logarithmic count rate meter and logarithmic count rate recorder (both located on Radiation Monitoring Panel 12).
Manual and automatic controls are provided for operation of the air removal units and for protective purposes.
Each vacuum pump unit is manually controlled for starting and stopping, with automatic operation from the Control Room by a selector switch on the Turbine Auxiliary Monitoring Panel No. 17.
Interlock controls are provided for automatic valve operation during vacuum pump starting and stopping in order to open and close extraction paths to the
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- t condensers.
Low condenser vacuum switches, one on each "H" and "C"
condenser shell, serve to start the pump on standby if the vacuum falls below 22 and 24 inches Hg, respectively.
The turbine is set to trip between 18 and 22 inches Hg (vacuum), as specified in Volume 1 of the Westinghouse Instruction Book.
Switches are provided for closing valves V2A and v2B if the need arises or the appropriate valve will function when the standby pump is set into coeration.
A vacuum breaker switch is provided to open the condenser vacuum breaker valves to break condenser vacuum should it be required.
Other controls for the air removal unit include the flow valve that adsaits air to each pimp, air temperature-indicator switch control that shuts down the vacuum pump above 185F, oil pump pressure relief valve, and dual oil pump pressure switch for operating the auxiliary (oil) pumps and shutting down the air removal unit on low oil pressure.
Panel mounted annunciators are listed in Table 4.
Alarm con-ditions are provided for low vacuum in either condenser shell, open condenser vacu*im breaker valves, tripping of any of the vacuum pumps, tripping of the vacuum pump unit auxiliary oil pump and excessive radiation level in the exhausted air.
All annunciators are located in the Control Room on the Turbine Auxiliaries Monitoring Panel No. 17 except the radiation level, which is located on Radiation Monitoring Panel No. 12.
3.0 PRINCIPAL MODES OF OPERATICN 3.1 startup a must be Prior to startup, the turbine gland seri
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in opepation and valves VA-V7A and VA-V8d m_st be closed and i
sealed with demineralized water.
The valves remain closed during normal operation.
Any continuous air leakage through the glands 195 169
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,. s a-t and/or vacuum valves while in normal operation may cause a loss or reduction in vacuum.
The pumps are started by means of switches on the Turbine Auxiliary Monitoring Panel No. 17 in the Control Room.
There are four switches on the panel.
The positions are START, AUTO, STOP and PULL-TO-LOCK.
To start the pump, switch is positioned to START and will spring-return to AUTO.
Table 2 specifies the actions performed with the switch at each position.
At least two pumps are needed for startup with the third available if required.
To start all three pumps (hogging) for simultaneous running, each of the switches must be set to START and valves VA-V2A and V2B will open automatically, provided switches VA-PHS-3482 and 3483 are in ON.
In combined operation, all three pumps will evacuate a total volume of 150,000 cubic feet from 0 to 26 inches of Hg vacuum within 60 minutes.
Once condenser vacuum reaches the preset level, the condensers are ready for steam admission.
3.2 Normal Operation The sequence of flow during normal plant operation and the function c,f each of the various components are described he re in.
The system is arranged with three 50% duty vacuum pumps connected to a common header which, in turn, connects the two condenser shells.
The two shells operate at different vacuum levels because the condenser is a dual pressure unit.
Although two
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operating pumps and one backup pump are furnished, any two of 2
the three pumps can serve the requirements for normal operation.
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k i t Operation of the backup pump is initiated automatically by
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failure of one of the two operating pumpa or upon either condenser shell reaching low vacuum.
Pump and valve operation occurs in the following manner.
Assume it is desired to run pumps VA-P-1A and 1C and that VA-P-15 pump is to serve as backup or placed on standby.
The two pumps VA-P-1A and VA-P-lC are started by setting the switches for VA-P-1A and VA-P-lC in START.
Each switch (CS-7) will spring return to AUTO from the START position.
The switch for pump VA-P-1B is set in AUTO.
Control switches VA-PHS-3482 and 3483 (electrically designated CS-8) are set in the OFF position.
In this condition, pump VA-P-1A takes suction from cold surface condenser CO-C-1A through cannection number 3, butterfly valves VA-V6C and V6D and a 12-inch line.
Suction from the condenser is through a 12-inch inlet valve VA-VlA and a 14-inch, diaphragm-operated butterfly valve VA-V4A (furnished as part of Air Removal Unit VA-P-1A).
Valve VA-V4A is interlocked with pump motor 1A so that upon starting of the pump motor the valve opens to permit suction from the CO-C-1A condenser into the VA-P-1A separator.
The 12-inch line leading to backup pump VA-P-1B is closed by valve VA-V2A during this operation.
This condition permits the extraction line to the backup pump to be shut while pump VA-P-1A takes suction.
With pump VA-P-lC operating, suction is taken from the hot surface condenser CO-C-DB through connection number 3, butterfly valves VA-V6A and V6B, and a 12-inch suction line.
Suction
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from the hot condenser is through a 12-inch inlet valve VA-Vic and a 14-inch butterfly valve VA-V4C (furnished as part of Air Removal Unit VA-P-lC).
Valve VA-V4C is interlocked with pump motor 1Csothatuponstartingofthepumpmotorthevhlf}
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a opens to permit suction flow from the CO-C-LB condenser into
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the VA-P-lC separator.
The 12-inch line leading to the backup pump VA-P-1B is closed by valve VA-V2B during this operation.
This condition permits the extraction line to the backup pump to be shut while pump VA-P-lC takes suction.
Refer to Table 2 for service status of pumps and valves in other modes of operation, results of pump failure, and corresponding conditions of pumps and valves due to condenser low vacuum.
The table lists and specifies possible situations that may be encountered with two pumps continually in service and the consequent switching process to activate the pump placed on standby and to open and close the VA-V2A and VA-V2B valves.
Air extracted from condenser CO-C-1A enters pump unit VA-P-1A at the intake separator.
Air is admitted to the separator through diaphragm operated valves VA-V4A through C for pumps A through C respectively.
These valves are interlocked with their respective units such that they open when the unit is started and spring shut when it is stopped.
This arrangement permits the pump to be idle under full system vacuum by preventing air from flowing backwards through the pump rotors on shutdown.
Essentially, the separator allows water carried over from the system to collect and drain at a controlled rate into the vacuum pump inlet.
The moisture separator and condensate reservoir, in t he cavity section of the base, serve as a receiver-separator for the extracted air and vapor mixture discharged from the condenser vacuum pump.
During normal condenser operation, air in-leakage is indicated by an air flow indicator, which gives a continuous reading of any leakage. -
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r Air is discharged from the air removal unit VA-P-1A through the reservoir tank discharge port which is connected to a 10-inch line through outlet valve VA-V3A.
Air flow proceeds through a 12-inch line through two knockout drums in series with the exhaust line.
Radiation monitoring (detector VA-RE748) is located in the 12-inch line between the air extraction units discharge and the Glend Steam Exhauster discharge to detect
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beta-gamma levels from lx10 to 1x10" uCi/cc for Kr.
Radioactivity exhaust level is indicated on VA-RIA-748, which provides continuous logarithmic indication, and is recorded on recorder VA-UR-3263.
This unit also contains the alarm c ircuits.
The Gland Steam Exhausters GS-E-1A and 1B, through two valves VA-VSA and V5B, exhaust noncondensible gases into the exhaust system.
The knockout drums remove condensate from the system piping prior to final exhaust.
The two drums are 18-inch pipes each with separate drainoffs-The first drum contains a drainoff at the bottom of the pipe that extends to the Turbine Building floor drain system.
The second drum is similar except it drains into the decay heat remova'. pump room sump.
The exhausted air is discharged via the Auxiliary Building exhaust system through a combination by-pass line and filter system containing automatic dbmper control actuated by its radiation monitoring detector.
(Refer to System Description, Index No. 36, Auxiliary Building - Heating and Ventilation.)
-t 3.3 Shutdown If the condenser air extraction system is not required to be in service, it can be shut down by stopping the air removal units from the Control Room and placing the control switch in 195 173 :
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the Pull-to-Lock position.
If maintenance or inspection is required on the condensers, it is necessary to break the vacuum seal at connection 52 on the condenser by operating switch VA-FHS-3158 on Panel 5.. This opens valves VA-V7A and V7B simultaneously.
3.4 Special or Infreauent Operation If one Air Removal Unit is shut down for equipment maintenance, another unit can be substituted.
Two of the three vacuum pumps are normally in operation with the third serving as standby.
To employ three pumps simultaneously (e. g, hogging operation for startup) the third pump is merely started in the Control Room.
4.0 HAZARDS AND PRECAUTIONS Release of radioactivity to the environment is the only hazard associated with the system.
It should be prevented by means of continuous monitoring and/or filtering of the exhausted air.
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.g TABLE 1 VACUUM PUMPS AND ACCESSORIES Pump Details Identification VA-P-1A, VA-P-1B, VA-P-lC Number Installed Three Vendor Ingersoll-Rand Co.
Modal No.
AXI-VAC-20 Type Helical Rotor Positive Dis-placement Hogging capacity,scfm, at 2700 15 inches Hg (absolute)
Holding capacity, scfm, at 20 (free dry air) 7 inch Hg (absolute), 71.5 F Pump Speed, RPM 3550 Air-vapor inlet pressure, inch 1.5 Hg (absolute), Design Air vapor inlet temperature F,
71.5 Design Lubricant / Coolant Oil / Seal Water Motor Details Manufacturer General Electric Type
' Squirrel Cage Enclosure Open, drip-proof Rated Horsepower, hp 200 Speed, rpm 3600 Power 460V, 114 amp (full load) 60 hz, 3 phase Source (for each pump motor)
VA-P-1A 480 MCC 2-41A
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VA-P 1B 480 MCC 2-41A and 31A I VA-P-!.C 480 MCC 2-3LA Lubricant / coolant Oil / Air
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TABLE 1 (CONTIN' ED)
VACUUM PUMPS AND ACCESSORIES Seal Water Cooler (Heat Exchanger)
Manufacturer Patterson-Kelly Model No.
FH-4 Type Shell and Tube Water Capacity, gpm (max.)
300 Tube size 3/4 inch. O.D.
Gauge 18 BWG Pressure drop, psig 2
tube and shell side Source of Cooling River Water from the Circulating Water System Inlet Temperature of Cooling 7.5F below inlet temperature Water of vacuum pump Auxiliary Oil Pumo Manufacturer Tuthill Model No.
1 LPF Rated Horsepower, hp h
Speed, rpm 1725 Power 460V, 60 hz, 3 phase 2-31A Source 480V MCC 2-41A l95 17g
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and c schematie D 9 30+o Identification Deecription
_F*W ien tocation g
input Range Mput Bange gtpoint Wh-kE-148 Detector Element Measures beta-gaeana levels of On 12-inch Plastle to key to 3 mew
'0-2 Y M/A eineusted af r in condenser Air condenaar scintiltation Extr*ction enhaust header.
vacu m pwsp detector outlet header vn.4/m-3263 Recorder Provideo continuous recording of gamel 12 esatti.
0-10 woc radiation activity of enhausted air to to 10 cym M/ A from va-az-748 element goint 4
va-atA-14s m.dlatia.
Indicates beta-g e activity and genet 12 Analog 0-2, 0-10 W (secordest Activity Indicator provideo stars uja f
- 14CV-3 4 52, Air Aestselon Controle vacuum pump talet air velves and Separator Sw. Conta Air to P laters Als to Valve DLagh.
M/A 3453, 3454 control valve la interlocked with corresponding hit. I nt e*.
" ve%I'"*A0 N #$" "i y PS j
M Actuattom solemold pep motor M
valvea.
gott vn-FI-3415, 34S6, flow Irdica tor Indicates glas of outlet air of Alr mannovel sotometer 1.2 to 35 scrM I.I IA 3SICI'*
34S7 vacuum pump unit, between N/A pump motor and discharge port VA-LI-3461, 3462, tevel ladicator Indicates water level in base Air penovat Tubular N/A IVA 3443 pfA unit. nest to make-up water valve va-TIC-3450 Temper a tur e-Indicates air temperature Air peneval
- Thermos t a t!c 0-2Sor N/A 8
1459, 3460 indicator control of pump and tripe pwnp on high temp.
Unit, above g35 r set oil cooler for pump shutdown pone C11 level indicator Indicates level of oil in the ayeten Air manovel Gauge M/A y/h W/n i
l Unit, above glaae base oil drain Vk-Pits-146 tow vacuum pressure Actuates standby pep at low vacuum
- Rack 410 Diaphraga 0-30' Hg.
M/A 22.Sinches Hg I
owitch (high pressare) in covienser Co-C-la (vacuual I vacum)
VA-PH1-747 toe vacJam psess are Actuates standty pump at low vacuum Rack 411 Diaphante 0-30' Hg.
N/A 24.5 inchse Mg asttch (high pressure) in condenser Co-C-14 (vacuual 4A-try-3464, Contro! Valve Controle water level in base.
Air removal rioet N/A N/A N/h (vacuum) 34E5. 3456 unit next to Operated levet indicator e -
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7 SURN3 AND ROE. INC.
w O. see onw
_ Seen sea Tees 8*e Q
6 0+e--g No Ceu fee.
Sheel of te Chest es Awe.ed T.no TastJ 4 PANEL tuXMTY3 AllHUNCIATOR$ AND COMPUTrP LIST b
enhTL wunTr3 Amanciatres Ifear.
Measuret verishlee, Units (Larn serpoint Input Searce
?/ariable Pacje Janet rene and bo.
N 11th Id Vn-uA-3110 Alarms when condeneer vacuum breaker NA NA FA V7A,3 NA Turbir.e A*.'a111arles Panet No. 17 C7 Icondenser vacuus valves V7A and V79 are not fully Cloted.
Breaker valves cpen)
VA-PhL-3447 Alarme when the cold condensar reaches MA 24.
Ms-Ps-3307 o-30' Hg Turbine Aum111eries Penal No.17 A7 teeld condenser 1m low vacuum. Measured in tr.cbes hg (vacuum)
Vacm)
(vec uum).
VA-IRL-3464 Alarma when the hot condenser reaches NA 22 Ms-Ps-3388 0-30* Hg Turbine Aum111eries Panel I.o.17 37,,
a not Conde ne s s im low vacuum. Measured in inches ley (vacuum)
Yacu z)
(vacum).
Y.9-PA n-4 641 Alarms when the condenser vacuum NA 25 63/LY 0-30* Hg Turbine aus111sries penet a:c. 17 g32 g
condenser Vacetan approaches the los level setti g. which (vacuum)
- s la ol.ightly above the levet to annunciate
(
elara VA PAL-3467 or VA-FAbl4&S. Measured in inches ng tvacuum).
- *g*
C3-IA-46S3 Condenser Alarus when any vacu m pucy NA NA O tJ /VA - P-LA. 13 1C 1./A Turbine Auxiliaries Par,el g.o.17 g7 Vacum Pump Trip
( VA-t-1A, 18. or IC) trips.
CC-EA-4655 Alarma when any aum!!!ary cin piamp a: ripe, liA NA O!J/AOP-A. S.C N/A Turbine Auxiliar ses f ar.e1 Lc.17 c7 Cor. denser vacuum Pu p Aus111arles 011 imp Trip.
VA-PIA-740 Alasse when the VA-UA-3243 recorder on 2X Backgrd.
W R2-148 Radiation Monitor Penet loc. 12 W UA-3243 Panel 13 and VA-RI-748 f rJ1cator reach 21 nackgroums uct/cc for 85 Kr beta-gamme levet seasured in micro curies per cubic continieter.
VA PAN-3438 Alarus when Gland Steam Cst. denser ' Vacuum drope 10" H ti vac.
VA-PS - 38 5 P - 1 l'-60* H O Turbine Austliaries les el v..
!! C29 Ctand steam to 10" H 0.
2 2
(Vacuwn)
Condenser vacuum 14 l
(;s-EA-4 62
- Alarms when either i. land steam Shhuster hA NA l
OtJ-CS-E-1A,13 t3/A Turbine Aus!!!arles Pawl e-17 330
~. land Steam (GS-E-1A. 15) tripe.
Exhaustar Trip WLAL-7093 Alarus when the level is VA-7-1 drops N/h 16' f rs.
VA-13-7090 N /A Turbine Aus111arles f ar.el c.17 P7 Coedensate f) rain to a predetermined point.
bottom' Tank WT-1 Imvel 14 I
a i
t t
p.. se nza ta
{21-s-... ~.. --me=*m==mugr
- so m,v e m WW2 M 7 r e r i-vb
.s is -) - =-. * * -
- P.
- r " * " **-
- -C'*"**
a-****M--*=~~~&---=.-
s. *s.
a
l!
3" TABLE 4 COMPUTER LIST (DIGITAL)
INPUT DESCRIPTION INSTURMENT INPUT CONDITION USES NO, TAG NO.
FOR OUTPUT STATUS CHANGE 3073 Cond. Vac. Pump VA-P-1A OLX-1A/VA-P-1A Trip Alarm Seq. Mon.
3074 Cond Vac. Pump VA-P-1B OLX-3A, OLX-3B/
Trip Alarm VA-P-1B Seq. Mon.
3075 Cond. Vac. Pump VA-P-lC OLX-lC/VA-P-lC Trip Alarm Seq. Mon.
2710 Aux. Oil Pmp. for cond. Vac OLX-1A Trip Alarni' Pmp 1A 2711 Aux. Oil Pnp. for cond. Vac OLX A,
OLX D
Trip Alarm Pmp 1B 2712 Aux. Oil Pmp. for cond. Vac OLX-lc Trip Alarm Pmp lC 3235 Cond. Vac. Pmp. VA-P-1A M2/VA-P-1A Off Control 3236 Cond. Vac. Pmp. VA-P-1B M3A/M3D/VA-P-1B Off Control 3237 Cond. Vac. Pmp. VA-P-lC Ml/VA-P-lC Off Control Ln 4 4 ee 4
0. O' 0
m))=
4
q p p i i r
r T T m
m m
m m
m t
t r
r r r
r r
s s
a a a a
a a
o o l l l l l l P P A A A A A A m
m r
r a
a l l A A g g o
o L L
~
F F F F F F S
0 0 0 0 0 0 T
I 8 8 8 8 8 8 I
H 1 1 1 1 1 1 M
IL MRAL O
4 2 AL 2 2
)
G O
L AN n
A
(
4 T
T 9 8 0 1 2 3 4 5 E
S N
9 9 7 7 7 7 7 7 L
I E
8 8 5 5 5 5 5 5 B
L M
3 3
7 7 7 7 7 7 A
UO T
R RN T T E E E E E E E
T P P T T T T T T T
SG U
NA S S A A A A A A P
IT M M V V V V V V M
O C
)
G
, g g g g g
'r H
r r r r r
B B B B B I
n d
. d d
I r
(
I d b d b d b s,
b t b t b t
(
n u
n u n u
s s I O
I O I O e
s r
e t t t t t t P
r o
o o
o o
o N
P N N N N N N O
d I
l t
A A B B C C T
o o 1 1 1 1 1 1 P
C H I
p p p p p p R
C H m
m m
m m
m C
P P P P P P S
E d d D
n n
c c
c c
c c
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a a
a a a a
C C V V V V V V ON
~
A N
L h
T U
2 3 4 5 6 7 8 9 P
5 5 7 7 7 7 7 7 N
1 1 6 6 6 6 6 6 I
0 0 1 1 1 1 1 1
.