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Operating Manual
Old Unit PVC Reactors
Page d
IV. CONTROL PANEL SWITCHES, INDICATORS, AND ALARMS (CONTINUED)
C. Reactor Charge Panel (Continued)
Charge Meter Counters and Switches
This section of the charge panel includes the following charge
meter counters and switches:
1. Recipe Number; This switch is used to tell the Modicon which
formula to charge when automatically charging a reactor. The
___--1^5
resin type (5385$ in the old unit) is selected using the push
buttons which advance the display numbers. When changing a
formula, the recipe number must show the formula
which
the setpoint is being changed.
2. Register Number: This switch is used when changing a Modicon
formula setpoint. If it used to display,the setpoint number
/
-ifli lUvciiU-, ) ^ l l'T~Tc (
which is being changed^ (i.e., at the present time setpoint
i
/
number 0006 represents the methocel cutoff setpoint). It must
display 0000 when charging a reactor.
3. Setpoint Val
IM This switch is used Mr conjunction with the
Register Number switchAwhen changing a formula to set the desired^valvg)for the setpoint shown on the Register Number
switch (i.eT, to set the methocel cutoff at 195 gallons, the
Register number must show 0006 and the setpoint valv^ must
fvalve/should show 0000 when charging
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IV. CONTROL PANEL SWITCHES, INDICATORS, AND ALARMS (CONTINUED) C. Reactor Charge Panel (Continued) Charge Meter Counters and Switches (Continued) 4. Enter Data: This single pushbutton switch is used in two ways: a. To enter a new val$e into the Modicon when changing a setpoint. Pushing the Enter Data button will enter the dis~ played^Set Point^Valv^ into the displayed Register Number
for the displayed formula (Recipe Number). b. To enter the charge formula into the Modicon before charging
a reactor^must be pushed at the same time as the Meter Reset switclj. When pushed, the Modicon checks the formula dis played versus the selector switch position and the reactor
a being c^rged to make sure that a formula for the large reactors is not charged into the small reactors. 5. Meter Reset: This single pushbutton switch is used to reset the charge meter counters and Modicon setpoints before charging a reactor. 6. Reactor Selector Switch: A selector switch that has SMALL and LARGE positions that- can be selected. This tells the Modicon what size formula is to be charged and prevents the automatic charge READY light from coming on if the reactor being charged and the selector do not agree.
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IV. CONTROL PANEL SWITCHES, INDICATORS, AND ALARMS (CONTINUED)
C. Reactor Charge Panel (Continued)
Alarms (Continued)
acknowledging the alarm, check the makeup valve to make sure it
shows a closed light and also check the VCM transfer pumps to
see if both green lights are off. If either one is on, verify
that the new unit is making up VCM. If it is not, shut down
the pump(s) manually and have the chief operator check the
pumps and write a corrective action maintenance work order as
needed.
CM Bullet Deluge System: This alarm comes on when the deluge
system on the VCM tank farm storage bullets is activated (at
3 psig air pressure on the valve). When the alarm is acknow
ledged, contact and notify the yard supervisor (on days) or
(J.*?_
/1-}r L'i/ti
operator that the bullets system is on. Possible causes
a VCM leak, low air pressure to the deluge valve^, or a mal
function in the deluge system. Yard personnel will investi
gate the cause of the deluge system tripping and will notify
the Vinyl Shift Supervisor.if needed.
VCM Bullet Deluge Low Air Pressure: This low pressure alarm
on the tank farm VCM Bullet deluge system comes on if the air
pressure to the deluge valve drops below 25 pisg. Notify the
yard operator (or supervisor on days) of the alarm condition
and have him check^for air leafo^in^the systpm
ops to _3 psig and sets__of_the deluge system.
Uf
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IV. CONTROL PANEL SWITCHES, INDICATORS, AND ALARMS (CONTINUED) D. Recovery Panel (Continued) Switches (Continued) 4. Slurry (Continued) b. Exhauster - The start/stop switch for the motor on the ex hauster that is over the dump screener. c. Slurry Dump 72-496 - The start/stop switch for the east slurry transfer pump. d. Slurr^Dump 72-497 - The start/stop switch for the west
slurry transfer pump. e. Emy. Sweep Valve - The open/close switch for the actuated
valve upstream of the dump bullseye in the reactor dump header. f. To T-407 - The open/close switch for the actuated valve on the slurry dump header that goes to 407 blend tank. g. Small Blend Tank - The open/close switch for the actuated valve on the slurry dump header that goes to the small blend tank header. h. To T-747 - The open/close switch that operates the actuated valve between the slurry dump header and 747 blend tank. i. To T-502 - The open/close switch that operates the actuated valve between the slurry dump header and 502 blend tank. j. To T-501 - The open/close switch for the actuated valve between the slurry dump header.and 501 blend tank.
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IV. CONTROL PANEL SWITCHES, INDICATORS, AND ALARMS (CONTINUED) D. Recovery Panel (Continued) Switches (Continued) 7. Other Switches a. Deluge Firewater - A specialized switch having an ON and OFF pushbutton and a green indicating light. When the ON pushbutton is pressed, the old unit deluge system is set off and the indicating light comes on.^To shut off the deluge system, the water must be turned off and reset man ually in the field. The control panel switch OFF push button must be pressed (and the indicating light will go off), resetting the air valve for the system before it can be manually reset. Test Lamp - When pushed, this switch should light all of the lights on the recovery panel. Any lights that are not burning must be replaced according to the Panel Light Test Procedure given in section B.
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IV. CONTROL PANEL SWITCHES, INDICATORS, & ALARMS (CONTINUED)
D. Recovery Panel (Continued)
Indicators
The following indicators are located on the old unit recovery panel,
listed according to the labels on the indicators:
1./ Recovery - This is the recovery pressure controller and indi
cator. In the automatic position it operates the automatic
0'v||f'ifecovery valve that regulates the presssure going into the
recovery knockout tanks. The setpoint is adjustable and the
indicating pen shows the recovery line pressure downstream of
the valve tfeiifeig*. jv
3C !`h C (l l.'U iVi /(Si'yi t
FA-951 Level - This indicator shows the level in the south.
batch water stripper. The levell Indicated from 0-100%.
3. FA-951 Press. - This indicator shows the pressure in the south
batch water stripper. The pressure is indicated from 30 in.Hg
vacuum - 100 psig.
4. FA-951 Temp. - This indicator shows the temperature in the south batch water stripper from 50F - 300F.
5. Stripping Steam - This is the steam stripping controller and
flow indicator for the batch water strippers. It controls the
flow of steam going into the batch water stripper that has the
stripping steam actuated valve open. The setpoint is adjust
able and the indicating pen shows 0-10 roots of flow which
S50O
corresponds to 0 -
lbs/hr. of steam.
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IV. CONTROL PANEL SWITCHES, INDICATORS, & ALARMS (CONTINUED) D. Recovery Panel (Continued) Indicators (Continued) 6. Pressuring Steam - This is the pressurizing steam controller for I the batch water strippers. It controls the tank pressure by I regulating the flow of steam through an automatic valve going Imb S into the top of the tank(s) that -bieee the pressurizing steam [ actuated valve open. The indicating pen shows the pressure downstream of the automatic valve from 0 - 100 psig.
> PA-952 - This indicator shows the level in the north batch water stripper. The level is indicated from 0 - 100%.
8. FA-952 Press. - This indicator shows the pressure in the north batch water stripper. The pressure is indicated from 30 in.Hg vacuum - 100 psig.
9. FA-952 Temp, - This indicator shows the temperature in the north batch water stripper from 50F - 300F.
10. Caustic Stg. Tk. - This indicator shows the level in the old unit chem wash tank, from 0 -100%.
11. The following ammeters for- the recovery vacuum pumps and"com pressors are on the recovery panel. They show the motor amps from 0 - 300 amps. a. Vacuum Pump 72-501 - "A" vacuum pump b. Vacuum Pump 72-502 - '-'B" vacuum pump c. Compressor 72-503 - "A" compressor d. Compressor 72-504 - "b" compressor e. Compressor 72-505 - Disconnected fr
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r
IV. CONTROL PANEL SWITCHES, INDICATORS, & ALARMS (CONTINUED)
D. Recovery Panel (Continued)
Alarms (Continued) w
2. Bfl-691,LS-602 - This is the high level alarm for silo 691 and
is to be handled the same as the alarm for 690 (above). a/ h'(j h
3. LS-603,Bfl-689 - This is the light- level alarm for silo 689
and is to be handled the same as the alarms for 690 and
691 (above).
4. Emission Recovery Sys. Shutdown - This is the shutdown alarm
for the emission recovery system. When the system shuts
down, the vacuum pumps and compressors shut off. Upon acknow-
ing the alarm, notify the chief operator. The local panel should show the reason for the shutdown. Yv 5. \ Chem Wash High Level - This is the high level alarm for the
Id unit chem wash tank. It comes on when the level in the
tank reaches the probe that is lh feet from the top of the
tank Qeteid 8" below the overflow pipe). The alarm comes on
at about 85% on the level indicator. Upon acknowledging the U. -
alarm, the lead operator mist check the chem wash system and
shut down any equipment that would cause the tank level to
rise. If there is not equipment running or valves open, the
lead operator will notify the "A" operator to check for
material going into the tank and the lead operator will mon
itor the tank level to make sure it does not continue rising.
If the level keeps rising and the problem cannot be found
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IV. CONTROL PANEL SWITCHES, INDICATORS, & ALARMS (CONTINUED) D. Recovery Panel (Continued) Alarms (Continued) 5. Chem Wash High Level (Continued)
alarm light comes on, the chem wash in the tank could overflow causing a pH problem for the waste water ponds. 6. Slurry Tank High Level - This is the high level alarm for the slurry dump box on the suction of the slurry transfer pumps. It is set off by the level in the tank reading a level about 6" from the top of the tank and about 3" below the overflow n-Jno. Tf Humping when the alarm comes on, shut the emergency
and notify the "A" operator. The pumps or lines ;ed and may have to be flushed out before resuming
iramlly comes on in between dumps as the flush water for the level float fills the dump box. The alarm should be acknowledged and the lead-operator will check to make sure that nothing is dumping* The light should go out^when the transfer
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IV. CONTROL PANEL SWITCHES, INDICATORS, & ALARMS (CONTINUED) D. Recovery Panel (Continued) Alarms (Continued) 7. Calcium Stearate Tank Low Level - This alarm is not connected to any field equipment. 8. 15-1506,1-502 - This is the high level alarm for blend tank 502. It comes on when the slurry level in the tank reaches the high level probe 3h feet from the top of the tank (at about a 90% level). Use the following troubleshooting pro cedures: a. If the level indicator shows a level of around 90% or higher, identify any sources of material flowing to the tank (either from the control panel or the field) and shut them off. If the level does not stabilize according to the level indicators, notify the Shift Supervisor.
NOTE: If dumping into a slurry blend tank when the alarm comes on,' dumping can continue if an operator with a radio is stationed on top of the blend tank and is visually watching the slurry level.
If the level does stop rising^taking correction action, continue to closely monitor the level until the alarm condition is corrected and the light goes out. Close
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IV. CONTROL PANEL SWITCHES, INDICATORS, & ALARMS (CONTINUED) D. Recovery Panel (Continued) Alarms (Continued) 16. AMS Kill Sys. Old Rx. Instru. N,, Low Press. (Continued) the old unit have low pressure on the instrument nitrogen. The alarm is set off if the pressure on any of the instrument nitrogen systems for the Emergency AMS Kill System falls below 600 psig. Upon acknowledging the alarm, the lead operator will notify the "A" operator who will check the Emergency AMS Kill Systems for low pressure instrument nitrogen and will( charg
ie,}
out the nitrogen bottlej, if needed. If the problem cannot be solved promptly, notify the Shift Supervisor who will take action steps to clear the alarm condition so that the Emergency Kill System is functionable^ if needed.
17. So. Wt. Strppr. Valve Out of Order - This alarm indicates that the valves are out of order on the south batch water stripper. The following conditions may cause the alarm: a. Modicon. problems - Get instrument maintenance to repair as .>(- f'-t 5'Vi soon as possible. Manual operation^may be necessary until repairs are made. b. A valve open or closed in the wrong mode - Correct the problem from the panel by operating a valve, or have the "A" operator check the valve in the field and apply the Troubleshooting Procedures given in section III, V. of this manual. DTH 000110382
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IV. CONTROL ROOM SWITCHES, INDICATORS, & ALARMS (CONTINUED) D. Recovery Panel (Continued) Alarms (Continued) 19. South Water Stripper High Press. (Continued) If the pressure indicator does not show a high pressure when the alarm goes off, have the "A" operator check the pressure in the field using a reliable pressure gauge. The pressure alarm or indicator may have malfunctioned and must be repaired promptly. NOTE: Vinyl operators are responsible for changing out pressure gauges in the field as needed and for keeping reliable pressure gauges installed on equipment.
20. North Water Stripper High Press. - This is the high pressure alarm for the north batch water stripper. The alarm setpoint is 40 psig. Troubleshooting procedures and corrective action are the same as for the South Stripper High Pressure (above).
21. South Water Stripper High Level - This is the high level alarm for the south batch water stripper which comes on when an 80% level is reached in the tank. A high level capacitance
x----------------- --fo----------
probe located(86 inchey from the fesp of the tank sets off the alarm. When the alarm is apkiuwledged, the lead operator
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Old Unit PVC Reactors
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IV. CONTROL PANEL SWITCHES, INDICATORS, AND ALARMS (CONTINUED)
Recovery Panel (Continued)
Alarms (Continued)
21. South Water Stripper High Level (Continued)
will check the tank level indication and will check for sources
of the high level if it is high. If the tank is stripping, the
lead operator must closely monitor the level during stripping
to make sure the tank does not get above 90%. Notify the
Shift Supervisor if the level gets above 90% and follow his
instructions for clearing the alarm. If the level is high
/ for no apparent reason from the control panel*, have the "A"
operator check in the field for sources of the high level* s> , 1 ' j
aiftPcontinue monitoring the level^ If the problem is not..--'
/
found and promptly solved, notify the Shift Supervisor. When
corrective action iss (takg)and the level stops rising, the
lead operator will continue to monitor the level until the
alarm is cleared, in case it starts rising again.
If the level indicator does not show a high level and an alarm occurs, have the "A" operator check the level by the sight glasses on the tank. The level alarm or indicator may have malfunctioned and must be repaired by instrument maintenance personnel promptly. Use the sight glass level to go by until the instrument is repaired.
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IV. CONTROL PANEL SWITCHES, INDICATORS, & ALARMS (CONTINUED) D. Recovery Panel (Continued) Alarms (Continued) 22. } orth Water Stripper Hjgtf Level - This alarm is set off by a probe that i 86 inched from the top of the tank (approximately 80% on the leWLJadlcator). Use the troubleshooting proce-
t / /. t
dures and corrective action given for the south stripper ` a r (above),
23. Wt. Stripper Low Press. Dump - This alarm indicates a low
pressure in either of the batch water strippers. It goes
off if the pressure of the tank falls below 2 psig. This
c': A' is not a hazard unless the dump valve god'the tank is open,
and the alarm should only come on if one of the strippers is
in the DUMP mode. If the tank pressure is low and the dump
valve is open, there is a chance of getting air into the
stripper which could be a hazardous situation. Upon
acknowledging the alarm, the lead operator should check the
-rkj'
are 'V> <
mode&ictti the strippers/JjftS Xf a stripper is dumping^ the
dump valve should have automatically closed when the alarm c^me on. If it did not, have the "A" operator close the
valve in the field. Pressurizing steam must then be used to pressurize the tank above 2 psig and clear the alarm.
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IV. CONTROL PANEL SWITCHES, INDICATORS, & ALARMS (CONTINUED) D. Recovery Panel (Continued) Alarms (Continued) 24. Wt. Stripper Ready to Dump - This alarm indicates that the timer ha^^ggone ouut^^in the batch water STRIP mode and the stripper is ready to be prepared for dumping. Upon acknow ledging the alarm, the lead operator will follow the operating procedure^for the Batch Water Strippers (section III, 1)^ Procedure number 7.
25. South Water Stripper Low Level - This alarm indicates a low level in the south batch water stripper and comes on lh feet from the bottom of the tank at approximately a 5% level on the level indicator. When this alarm is acknowledged, the lead operator will check the dump valve to make sure it is closed. If it is not, it must be closed either from the panel or the field, and the level should stop dropping. The lead operator will monitor the level until the alarm condi tion is corrected to make sure the level does not continue dropping^or drop after it had stabilized. If the tank empties, it can allow air into the tank, causing a hazardous situation.
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IV. CONTROL PANEL SWITCHES, INDICATORS, & ALARMS (CONTINUED)
7
D. Recovery Panel (Continued)
Alarms (Cplitinued)
26. jj^rth Water Stripper^^Sw Level - This alarm indicates a low
l / level in the/soutp batch water stripper and is activated by
a probe 1% feet from the bottom of the tank (5% on the level
indicator). Corrective action is the same as for the South
Stripp^er Low Level Alarm (above).
E. Small Reactor Panels
Switches
The following switches are located on each old unit small reactor
panel, D-300 through D-600. They are listed according to the
labels above the switches and are the same for each of the reactors
unless noted. The common name for the valve is given in parenthesis by each switch labeled. All of the switches are open/close switches
unless specifically stated after the switch label given below:
1. Evacuation and Recovery
a. Cond. Recov. Valve - (CondenserValve) - Operates the valve
at the top of the reactor condenser that is between the
condenser and the recovery or evacuation valve.
b. Evacuate Reactor - (Evacuation Valve) - Operates the valve --------------------^
between the condenser^anu the evacuation header. c. VCM Recovery Valve - (Recovery Valve) - Opeates the valve
between the condenser^valve and the recovery header. V
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IV. CONTROL PANEL SWITCHES, INDICATORS & ALARMS (CONTINUED)
E. Small Reactor Panels (Continued)
Switches (Continued)
6. Chemical Wash (Continued)
>
b. To Condenser - (Condenser Chem Wash Valve) - Operates the valve between the chem wash header and the reactor con-
o>\
denser sprayhead. ^ ,<=----------------- ^
J
WMVg
V oA
^
a. Rinse To React. - (Reactor Rinse Valve) - Operates the
valve between the rinse header and the reactor shell
sprayhead.
b. Wash Return - (Chem Wash Return Valve) - Operates the
valve between the reactor manifold and the chem wash
return header.
a. Rinse to Cond. - (Condenser Rinse Valve) - Operates the valve between the rinse header and the reactor shell sprayhead.
b. Rinse to Sewer - (Sewer Valve) - Operates the valve on the reactor manifold that goes to the sewer system (to the waste water ponds).
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IV. CONTROL PANEL SWITCHES, INDICATORS, & ALARMS (CONTINUED) E. Small Reactor Panels (Continued) Switches (Continued) 9. Slurry - Switch labeled "Slurry Dump" and valve is called the Slurry Dump Valve. This switch operates the valve jao. the --ifold1 between the manifold and the dump header.
10. Emergency
a. Emergency Cooling H,,0 - (Emergency Cooling Water Valve) -
This open/close
^ .T< 11
^
"Cuollug WSLfeP Valve'1 ana* overrides the temperature "7s C
' controller. When opened, the switch Closes the automatic
reactor cooling water valve and opens the automatic con
denser cooling water valve wide open. When closed, the
valves are controlled according to the reactor tempera
ture controller.
b. Emergency Mode - This is a specialized switch that has a
red EMER. indicating light with ON and OFF pushbuttons.
Normally, the reactor runs with the emergency mode switch
off, and the ON and OFF pushbuttons are in the "up" posi
tion and the indicator light is not on. To bypass the
Modicon and operate any of the reactor valves manually,
push the ON pushbutton (it will stay down) and the red
EMER. light should come on. The Modicon is then bypassed
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IV. CONTROL PANEL SWITCHES, INDICATORS, & ALARMS (CONTINUED) E. Small Reactor Panels (Continued) Switches (Continued) 11. Other Switches (Continued) b. Emer. AMS Injection - This specialized switch operates the actuated double block valves in the Emergency AMS Kill line at the top of the reactor. It has AUTO KILL and MAN pushbuttons with green and red indicator lights. When AUTO KILL is pushed, both actuated valves for that reactor will open and the green indicator light will come on show ing that the valves are open. After about 30 seconds, the low level probe will shut the valves automatically and the red indicator light will come on showing that the valves are closed. When MAN is pushed, the valves will open and a green indicator light will come on showing that the valves are open, and the valves will only stay open as long as the MAN pushbutton is held down. When it is released, the valves close and the red indicator light comes on con firming valve closure. c. Lamp Test - When pushed, this switch should light all of
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IV. CONTROL PANEL SWITCHES, INDICATORS, & ALARMS (CONTINUED)
E. Small Reactor Panels (Continued)
Alarms (Continued)
2. Agitator Amps (Continued)
under | Reactor Panel Indicators, item 1(above). Either a high or
low amps signal will give an alarm on the panel. Upon acknow
ledging the alarm, the lead oig^rator will check the amps indi
cator for the reactor and respond according to the following:
a. Low Amps - If the amps have fallen off completely, try to
restart the agitator using the start switch. If there is
no response and the power is on, have the "A" operator re-
hc-'' ten jiriiftlUti
set the breaker. If the reactor is
xtiaAVedn >
notify the "A" operator accord
ingly so that he will realize there is a potential emer-
\} gency condition, and notify the Shift Supervisor (while
monitoring the reactor pressure). Emergency AMS Kill
Procedures (Operating Procedures, section C) must be
followed.
If charging the reactor, stop the charge. If there is a plant power failure, follow the guidelines in Operating Procedures, section S. If the reactor`is not correct the problem before charging it.
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IV. CONTROL PANEL SWITCHES, INDICATORS, & ALARMS (CONTINUED) E. Small Reactor Panels (Continued) Alarms (Continued) AMS Kill Pot Low Level (Continued) closed on the Emergency AMS Kill System used (the red light on the switch should come on).
ijr \fi
If the alarm occurs when not using the Emergency Kill System, have the "A" operator check out the system and identify the problem. The sight glass should give the level in the pot (make sure it is not valved off). Check for leaks from the pot, refill the pot if needed, or write necessary work orders to repair the switches and alarms.
4. High Temp. - This is the reactor high temperature alarm. The setpoints for high temperature are set according to the product, as follows: a. 5385, 5425, 5465: 140F b. 5305 (with CTA): 150F c. 5265 (with CTA): 155F
NOTE: The old unit small reactors normally only run 5385 resin, so the setpoint will be 140F.
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IV. CONTROL PANEL SWITCHES, INDICATORS, & ALARMS (CONTINUED) E. Small Reactor Panels (Continued) Alarms (Continued) 5. High Press. (Continued) Upon acknowledging the alarm, the lead operator will check the reactor pressure according to the indicator on the control panel. If charging the reactor, immediately move the reactor mode switch to POLYMERIZATION which will close all the reactor valves except steam to the jacket!! Then follow Troubleshc ( Procedure^ Number 8 (High Pressure) given in the Charge section of this manual, section III, B,2. If the reactor is "live" (has been initiated but not killed) follow Troubleshooting Procedure^ Number 5 (Temperature and Pressure Runaway) under Polymerization Operating Procedures, section III, C, in this manual.
If the reactor is not "live", determine the source of the pressure (either from the panel or In the field) and shut it off. If the pressure continues rising, notify the Shift Supervisor imme[i(lately. When stabilized, continue to moni tor the reactor pressure until the alarm is cleared, to make sure that it does not start rising again.
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IV. CONTROL PANEL SWITCHES, INDICATORS, & ALARMS (CONTINUED) F. D-700 Panel (Continued) Switches (Continued) 2. Reactor Charge (Continued) b. VCM Charge, CV-101 - ("A" VCM Charge Valve) - Operates the upstream (away from the reactor) VCM charge valve that is between the VCM charge header and "B" VCM charge valve. :harge line does not connect to the charge manifold
c. Hot Water Charge - (Hot Water Charge Valve) - Operates the valve between the hot water charge line and the reactor manifold.
d. Colloid Charge - (Methocel Charge Valve) - Operates the valve between the methocel charge header and the bottom of the reactor.
e. VCM Charge, CV-134 - ("B" VCM Charge Valve) - Operates the downstream (closest to the manifold) VCM charge valve that is between the "A" VCM charge valve and the reactor, aani-
f. Initiator Charge - (Catalyst Charge) - This is an indicator switch that shows a green light when the catalyst charge valve is open and shows a red light when it is closed. The valve is operated from a switch in the field.
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IV. CONTROL PANEL SWITCHES, INDICATORS, & ALARMS (CONTINUED) F. D-700 Panel (Continued) Alarms (Continued) 9. AMS Kill Pot Low Press. - This is the low pressure alarm for Hdf the Emergency AMS Kill Pot. The alarm indicates/Va pressure below 250 psig exists in the D-700 Emergency AMS Kill Pot. Upon acknowledging the alarm under the normal operating con ditions, the lead operator will notify the "A" operator to find the cause of the low pressure condition and to repressuriz the pot correctly to 300 psig. Reasons for a low pressure may include nitorgen leakage from the tank, AMS leakage, or a low pressure nitrogen eyeliner. If the reason for the low pressure cannot be found and corrected, notify the Shift Supervisor.
Under Emergency conditions when AMS is added to a reactor from the Emergency AMS Kill Pot, the low pressure alarm may come on, indicating that the AMS is flowing into the reactor as it should.
10. Agit Lube Oil High Temp. - This alarm indicates a high tempera ture on the D-700 agitator gearbox lube oil. The setpoint is
7ft>`yj Upon acknowledging the alarm, the lead operator will :ify the "A" operator to start the agitator lube oil pump if
it is not running. If it is running, have the "A" operator
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