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ABD00220092 VCH TANK FARM COMPRESSOR UPGRADE ABERDEEN PLANT CLASS "A" DESIGN JANUARY 09, 1992 WORK BY H. T. Harris Coop Process Engineer WORK BY W. B. Genetti Coop Process Engineer REVIEWED BY R. H. Sneed Lead Process Engineer ABD00220093 VCH TANK FARM COMPRESSOR UPGRADE ABERDEEN PLANT JANUARY 09, 1992 I. II. III. VI. V. VI. VII. VIII IX. X. XI. XII. XII. TABLE OF CONTENTS PROBLEM DEFINITION PROJECT DESCRIPTION JUSTIFICATION PROCESS DESCRIPTION ECONOMIC EVALUATION SAFETY AND ENVIRONMENTAL EVALUATION EQUIPMENT AND INSTRUMENTATION LIST SPECIFICATION SHEETS PIPING SCHEDULE WORK LIST DCS TIE-IN LIST DCS INTERLOCKS LIST DIAGRAMS ABD00220094 VCN TANK FARM COMPRESSOR UPGRADE ABERDEEN PLANT JANUARY 09, 1992 I. PROBLEM DEFINITION On several occasions the rail car unloading system has shut down. There has been a catastrophic failure of the compressors causing damage to compressor housing and internals. Most failures have caused some emission of VCM. These failures have been caused by liquid entering the compression chamber or the compressor running above its design conditions. i ABD00220095 VCH TANK FARM COMPRESSOR UPGRADE ABERDEEN PLANT JANUARY 09, 1992 II. PROJECT DESCRIPTION This project will install instrumentation for safer operation of the Corken compressors in the VCM tank farm. The instrumentation installed will shut down the rail car unloading system should one of the switches be triggered. The tank farm instrumentation will include the following: 1. INNDDIIVVIDIDUUAAL/LC/OCOMMPPRREES} SOR SHUT DOWN ft,-/.-/,./ A. Low oil' pressure 'switch on each compressor^/. fo(-- crank case. c to PP&SS ^f^rrr B. Low pressure switch on the compressor inlet. ,, fC(^ r1 l0b C. High .temperature switch on each compressor discharge line. D. High liquid level switch on each compressor knock-out pot discharge^! ine. , - 2. ALL .COMPRESSOR SHUTDOWN -rrr;.cv-v^--: ' --t^A. High pressure switch on each' compressor^jP-^/V?/ discharge line. B. HighAhigh level switch on VCM storage sphere knock out pot. * Interlocks with existing instrumentation: / ,y_y .1. Sphere isolation valve. ---* 2 Sphere deluge system. -- * 3. Rail car deluge. (<- v. l *. 0 *< Each of the above switches will provide an input to the DCS. The DGS-w-i-ll^also be responsible for providing the output-for^ehergizin^the compressors. Software can be easily implemented ror interlocking the above compressor shut downs. / >*.r' U ^7 y*- - . 'r + * i o ABD00220096 VCM TANK FARM COMPRESSOR UPGRADE ABERDEEN PLANT JANUARY 09, 1992 III, JUSTIFICATION Installing supplementary instrumentation and alarms in the tank farm will decrease the hazards associated with the unloading of liquid VCM rail cars. The end result of every malfunction of the unloading system is a VCM leak. It is necessary to know where the source of the malfunction came from and that the system will be shut down once a malfunction has occurred. This safety and health project will reduce the possibility of a compressor shutting down and the system continuing to run and cause a VCM leak. ABD00220097 VCM TANK FARM COMPRESSOR UPGRADE ABERDEEN PLANT JANUARY 09, 1992 PROCESS DESCRIPTION The existing high temperature switches, TSH-ft3f&5'-110) , will be tied into the DCS (see P&X diagram) . The individual compressors will be shut down at 340 degrees F. Compressors CP-(102-105) have existing low pressure switches on their discharge line. These switches, PSL(-iw^lio) , will be moved to the inlet line of the compressor. A low pressure switch, PSL-106, will be installed on CP-101. The switches will be tied into the DCS. .The DCS will shut down, the individual compressor atv 8 pi'^g. --' The existing high pressure switch, PSH-106, on the emissions recovery system (ERS) knock-out pot, will be tied into the DCS. All compressors will shut down when the ERS pressure reaches 75 psig. High temperature switches, TSH-(101 and 105), will be installed on the discharge of compressors, CP-101 and CP- 105. The other compressors have existing switches, TSH- (102-104). These switches will be tied into the DCS. The individual compressors will be shut down at 230 degrees F. -' High liquid level switches, LSH-(101-105), will be installed on the discharge line of the compressor knock out pots. These switches will be tied into the DCS. The DCS will shut down the individual compressor when a high level of liquid VCM is detected (see DCS interlocks list). Low pressure switches, PSL-(101-105), will be installed on each compressor crank case. These switches will be tied into the DCS. The individual compressors will be shut down at 12 psig. ABD00220098 VCM TANK FARM COMPRESSOR UPGRADE ABERDEEN PLANT JANUARY 09, 1992 PROCESS DESCRIPTION (Continued...) High pressure switches, PSH-(101-105), will be installed on the discharge line of each compressor. These switches will be tied into the DCS. All compressors will be shut down if any of the discharge lines reach _125 psig. A H&ZOP of the^VCM tank farm determined the flex hoses the weak~iilfo in"the unloading system-.. All compressors will be shutTdown before the lex hoses_ reach '~a Hazardous 'pressui- A high-high level switch, LSHH-101, will be installed on an existing nozzle on the sphere knock-out pot. This switch will be tied into the DCS. ^All compressors will be, shut down if high liquid_VCM level, is^detected- This will keep the sphere knock-out pot from overflowing into the compressor inlet. All switches, both new and existing will be tied into DCS (see DCS tie-in list). ; A DCS controller card and three additional TRIO blocks will be purchased, as part of this project, to handle the 3'^, additional"cflscreet inputs and 5 additional decreet outputs that must be tied into the DCS. A VCM unloading graphic will be created. The switches will generate alarms on the DCS when engaged. These alarms will be included in the ladder logic for energizing the compressors. This will provide compressor shut downs when the given alarm condition occurs (see DCS interlocks list). Interlocks with other equipment will be created to shut down the compressors in the following instances: 1. The sphefe5==i:sol:at:iron*,-valye is closed (DCS NUMBER: OOX2),).. 2. The sphere deluge system is activated (DCS NUMBER: --GDSft>5r) . 3. The rail car deluge system is activated (DCS NUMBER: -BOHAfrOS)-. 00 H#0 / ABD00220099 VCH TANK FARM COMPRESSOR UPGRADE ABERDEEN PLANT JANUARY 09, 1992 VI. PROCESS DESCRIPTION (Continued...) The vinyl operator will use two-way radios to communicate with the yard operator. Although the .compressors will J?.e--energized_ from, the DCS 7^ the yard^ operator^ will required, to. start the^~compress'ors^ 'from crfjocai--hand' switch^--'TKe~~compressors1 hand"switches wfll be located at^the shed. A drain line, 1-HX-1Q1-N-A2-1 f will be run from the vapor header of the sphere to the ERS knock-out pot. This line will be used to drain any liquid out of the vapor line before the compressors are started. This line will be tied into the vapor header at the existing bleeder valve west of compressor CP-103. A check valve will bi^" installed in this line. ~" All lines down stream of the new drain line, 1-HX-101-NA2--1, including the compressor knock-out pots and inlets^ to the compressors, will be heat traced and insulated. This design will keep the compressors operating within ther& designed parameters. The compressors will be shut dovrn before serious problems occur. ABD00220100 VCM TANK FARM COMPRESSOR UPGRADE ABERDEEN PLANT JANUARY 09, 1992 V. ECONOMIC EVALUATION This project has a projected cost of $50M - $100M. VI. SAFETY AND ENVIRONMENTAL EVALUATION This project will provide a safer operation of the compressors during the rail car unloading procedure. The ultimate result of the project will be a reduced chance for a VCM emission. This provides an added security to plant workers and the community. ABD00220101 EQUIPMENT AND INSTRUMENTATION LIST ITEM-------- new----------- Spec. DESCRIPTION----------------------------------------------------------EXISTING SHEET RELOCATED NUMBER LEVEL SWITCHES LSH-101 LSH-102 LSH-103 LSH-104 LSH-105 NEW NEW NEW NEW NEW LSHH-101 NEW 1 ULTRA SONIC LEVEL SWITCHES. 1 INDICATE HIGH LIQUID LEVEL IN 1 DISCHARGE LINE OF THE COMPRESSOR 1 KNOCK-OUT POTS. 1 CAPACITANCE PROBE LEVEL SWITCH. LOCATED IN SPHERE KNOCK-OUT POT. TEMPERATURE SWITCHES TSH-101 TSH-102 TSH-103 TSH-104 TSH-105 TSH-106 TSH-107 TSH-108 TSH-109 TSH-110 NEW EXISTING EXISTING EXISTING NEW EXISTING EXISTING EXISTING EXISTING EXISTING 3 HIGH TEMPERATURE SWITCH FOR COMPRESSOR DISCHARGE LINES. SET POINT IS 230 DEGREES F. 5 HIGH TEMPERATURE FOR COMPRESSOR HEADS. SET POINT IS 340 DEGREES F. PRESSURE SWITCHES PSL-101 PSL-102 PSL-103 PSL-104 PSL-105 NEW NEW NEW NEW NEW PSL-106 PSL-107 PSL-108 PSL-109 PSL-110 PSH-101 PSH-102 PSH-103 PSH-104 PSH-105 NEW RELOCATED RELOCATED RELOCATED RELOCATED NEW NEW NEW NEW NEW PSH-106 EXISTING | 2 LOW PRESSURE SWITCH FOR COMPRESSOR 2 CRANKCASE. SET POINT IS 12 PSIG. 2 2 2 2 LOW PRESSURE SWITCHES FOR DISCHARGE 2 OF COMPRESSOR KNOCK-OUT POT. 2 SET POINT IS 8 PSIG. 2 2 2 HIGH PRESSURE SWITCHES FOR 2 COMPRESSOR DISCHARGE LINES. 2 SET POINT IS 125 PSIG. 2 2 PRESSURE SWITCH FOR THE ERS. SET POINT IS 75 PSIG. DCS HARDWARE A DCS CONTROLLER CARD WILL BE PURCHASED FOR THIS PROJECT. THREE ADDITIONAL TRIO BLOCKS MUST BE PURCHASED FOR THIS PROJECT. ABD00220102 PI ANT VISTA VISTA CHEMICAL COMPANY GCNMAL CNGJNCEJBNO HOUSTON. TEXAS A.F.E.NO ____________ OATE A /2 *? /9/w. O. NO. SPECIFICATION SHEET LIQUID LEVEL DEVICES MAOE BY H TfJ {NO. NO.. APP'O 0Y.REQ. NO.. B.M.NO____________ P. O. NO. pnn.iFrT- VCM TAMKLFAgM GoMPi2.gyr>e L)P6gAPc 1 ITFM NUMRER 2 SERVICE 3 LOCATION 4 Clll,._,nij--Lia. LevfiL y. ajr 5 OPERATING CONDITIONS 6 UPPER FLUID 7 LOWER FLUIO 8 DENSITY O T. & P. UPPER 1 LOWER 9 TEMP..F PRESSURE, mo 10 DIELECTRIC CONSTANT 11 LSUW - lO\ lAU-loiilo&lQS.IoMff HIGH IJ?VL <r,*nvcH H-iGh DM - OCr, \ Wnfl K.o.-pgT_________ uaow LfcVeL UQOio fcL. 2'10 o-si ! 4-o-inO'P lOOpc.i 200*F \JfM VapdR. \JrM \JArPo. VGM UlGUiO MCt* UQVJiD 12 SENSOR 13 TYPE_ OHIOSAPkTA. CI/NdCIINILTLoMH OIkMll^-"" CAPACITOR Pf?OB& 14 RANGE 15 DIMENSIONS 16 MATERIAL 17 EXTENSION LENGTH 18 BOOY MATERIAL 19 20 LOCATION 21 . 22 MODEL NUMBER 23 TRANSMITTER 24 PNEU - ELEC 25 OUTPUT SIGNAL 26 ..------------ POWER SUPPLY 27 CLASSIFICATION 28 ^^TRlCAU gi^CTeicAu 29 MODEL NUMBER 30 SWITCH 31 TYPE: MERC OR SNAP ACTING 32 quantity! FORM ISPOT.ETC.1 33 CONDUIT CONN SIZE 1 TYPE 34 RATING VOLTS ICY or DC 35 AMPS 1 WATTS 36 LOAD TYPE (INDUCTIVE YES.NOJ 37 DIFFERENTIAL FIXED [ADJUST 38 ADJUSTMENT INTI EXT 39 CONTACTS CLOSt 1 LEVEL 1 06C 40 MODEL NUMBER 41 CONTROLLER 42 PNEU-ELEC CtOSB level INC a>^BvNeLiMo 43 PROP %l RESET 44 input! OUTPUT 45 ON LEVEL INC: OUTPUT mc 46 ------------------- POWER SUPPLY 47 CLASSIFICATION 48 49 MODEL NUMBER 50 ACCESSORIES 51 FILTER REGULATOR 52 C.lA<=GT Diuri CUKS T DIN/ TL 53 MANUFACTURER KOBfeKT SHAW SnJc>AlU NOTES 16MW-KM W'U- SHUT 1x>jjbA U&U-io\ vJluu shut DOaIM PvU- THe te>pAW~so AMD VkUlu UAuG AM M.A/V\ CM A P-io )______________________ THe ^MP^essoe. it 15 Sef2.'//M<S AMr? vAJluU HAu AM ALA&M OM AP'lCM 1-85 ON LEVEL MAK-^ SOl2.e Ac\o'^=> SHEET. .OF. ON ISVEL IMST oM Ok! S^d's .REV. ABD00220103 V1S1A Vista Chemical Company GENEftAt ENGfrttERING HOUSTON. TEXAS Pressure Instruments SPECIFICATION OATA SHEET PROJECT NO_________________ A.F.E. NO_____________________ P.O. NO. MADE BY JL T MAE-RIS OATE A Iz5 I \ / APP-n RV GENERAL 1 TAG NO. 2 SERVICE 3 uncATiorJ 4 INSTRUMENT TYPE 5 LOCATION 6 7 TYPE PSH-I0U02. iC^IrtU 1CK RS.-IOMD2 )D3i 104. \05 l^LIOk.loT.loR.lon 110 UieM. PtfessORfesuuncH Lf*J PRfcSSORe SiaHTCM LOVO ?z65S>{)<Z &vOffC* CP-101, IOZ 103 104 IOS CP-Id. 102 103.104. IQS 'JMW. 102,10^)04.inA SWITCH Svjitcm SvorrcA C0mpRSoR rxmjrr vapor. pze$$o(Z. fWtiPetSSOR CZAM K. CASE IMLT o\u pizessu&e VAPoR PCGSSuejr 6 LOCATION 9 OP'101.102 103.104 105 C-P-IOI 107.103.104 \c5 CPrfOf iai.\o3,\0+irP> ELEMENT 10 TEMPERATURE. T NORMAL OESIGN 350 350 3SO 11 PRESSURE. PSKJ NORMAL DESIGN ____ 65--q 5 _____100____ , 2*0 20 12 MATERIAL 13 TRANSMITTER: PNEU OR ELECT. STfl iMueSS STEEL. PlXCXlClCAu Stegl. 6lXCTR.if.Al_ TWk1lPS> 4fe6L eiJZCrVUCAL- 14 RANGE. PSIQ IS ALARM SET POINT 16 tNC. OR OEC. _____ 5P-1SP____________ 125 \ NC. / 0-50 10 I DEC. o- 150 ^ 1 Dec. 17 MFR 16 LOCATION MOOEL y y(1) \______________: \ \ 1 /\ ______ / \ / / 19 SIZE: BOOT PORT 20 MATERIAL: BOOY TRIM u 5 21 TRIM FORM < > 22 Cy (Co) FULL OPEN C, 23 ENO CONN ANO ANSI CLASS 24 LEAKAGE CLASS REOO 25 FAILURE POSmON 26 \ \ 7\/ _______ / _______ ~7~ /------------- V/l\ v A \/ /\ /\ yy / y y y v/ \/ y/ \ A\ \ \/ V 27 FUJIO (NOTE: UCWAP) 28 TEMPERATURE. *F NORMAL DESIGN vapor VAPOR. VA-PDA . 29 PRESSURE. PSX3 NORMAL OESIGN 30 AP. PS! MIN. RATE NORM. RATE MAX. RATE 31 MAX. SHUTOFF AP. PSI 32 RATE. MIN. Cy (Co) 33 RATE. NORMAL Cy (Co) 34 RATE. MAX Cy (Co) 35 AP ALLOW. PSI Kh 36 'API (UW) 37 SP. OR. (LB/CU FT) AT TAP 36 VAPOR PRES. AT TEMP. CRIT. PRES 39 OPER.VISC.cp VOL % VAPOR 40 SUPERHEAT. T WTHSOUO 41 WT% VAPOR: IN OUT 42 MAX PRED. SNO LEVEL d8A AT RATE 43 44 (1) OR CONOCO APPROVED EQUAL 45 psiIc9" --> ito ic, k\ dm TAe rovwPi?xSM2_ (A 46 UM6, THIS \MUJU 47 forwpiZesSo E. K-Niocjl cast pcjt. M.OJED *TD TAT7. OUTi^.r OP T i 46 49 *AAt,fS 6UX iMST^utaeMTS POT OfU TVH5 A^O'S, C.t*K1 P>5 U^D Okl A U>\0, 50 51 VALVE 1 SERVICE CONDITIONS (X) tNOCATES MANUFACTURER TO GIVE INFORMATION IN HIS QUOTATION. SPEC NO_____ SHEET____ 2. REV_____ OF__ si. 11-85 4-450 S ABD00220104 \ /ICTA VLMA VhJU\ VlS1A CHEMICAL COMPANY OOWAieNCMEMNO HOUSTON. TEXAS SF*ClFM.ATtnMtMFrr - Temperature Instruments a C C wn nATE ^ ,, Q NO. MADE BY hlThi INO.NO. AP,,'D EY------------ REa N0----------------- R M NO P.0, NO. pi ant A6fcRO eeiU ppmprr \fCM TANK FAi?M GoMPRe^ne DPOrZAnr^ 1 I tagno. <cui 2 | SERVES 3 1 IrO CAT1DNJ z 4 | INSTRUMENT TYPE (9 5 LOCATION 6 7. | TYPE 81 1 tSH-IOI, I0S" W\eu T&MP. SWITCH lf.P-lOl>/OS- COMPfceSSOfc OUTLfeT i ! 1 i I 1 t i 1 ! i 1 1 1 1 1 ELEMENT 9 LOCATION 10 | TEMPERATURE. T 11 | PRESSURE. PSIG cf-\o\*\o -SKO MAX IbO MAX '! i | I 12 MATERIAL 13 1 TRANSMITTER: PNEU OR ELECT 14 | RANGE. *P 15IALAE.M SET POINT 16 TYPE STAiNlHSS. STE1~ - ] fcufccre'CAL. 100 - 400 23o'P )NC. 1 !\4 17 18 LOCATION 19 MATERIAL: BOOT 20 SIZE: BODY TRIM PORT A \ \ \ / / / / 1 | VALVE 21 NUMBER OF PORTS 22 PLUG FORM 23 IP-. MM. NORM. MAX. \/ y A1 1 1 111 1 24 CALC. CV -- NORMAL FLOW 25 VALVE CV -- FULL OPEN 26 failure PosmoN 27 MAX. SHUT OFF AP MAX. FLOW /1\ // \ \ /\ 11 28 OESIGN PRESSURE 29 | 30 { FLU (NOTE UQ'VAPT / \ 1 31 TEMP. *F: NORM. MAX. 1 1 ! 32 PRESSURE. PS 33 'API (MW) 34 SP GR AT STD. CONO. 35 | SP GR AT T4P 1 36 I VAPOR PRESS. AT T. PSI % 37 | WEIGHT % VAPOR IN-OUT 38 I VISCOSITY AT T&P 39 1 UO,, IN 40 f RATE: NORMAL 41 | RATE: MAX. I OUT MM. 1 ! 1 11 ! 11 i 1 1 42 1 1 I ,Of7JZ IW^n2^->NLeUT5=> VOT OkI At 4^0 KV-Z ^M?ArAv>,ue \M 1 44 | 1 1 0'<> VALVE . SERVICE CONDITIONS NOTES 45 I 461 47 | 48| 49 1 50 ! 51 I (XI INOlCATES MANUFACTURER TO GIVE INFORMATION IN HIS QUOTATION. j SPEC NO .. REV. | SHEET ------- 3-------- OP --^------ 4-530-S i i H 3 `u 5 ABD00220105 LlI X Q lJ X o X < X LlI Q tO O o X UJ X UJ X CO o CO LlI z UJ O o X CO I/O UJ X o o X X ABD00220106 VCM TANK FARM COMPRESSOR UPGRADE ABERDEEN PLANT JANUARY 09, X992 WORK LIST NO VCM UNLOADING SHUT DOWN REQUIRED: 1. Install the controller card and TRIO blocks on the DCS. 2. Create a DCS graphic for VCM unloading. A. Create Alarms for all switches (see DCS tie-in list). B. Create ladder logic for energizing the compressors (see DCS interlocks list). 3. Install wiring between the DCS (vinyl control room) and the compressors and switches. VCM UNLOADING SHUT DOWN REQUIRED: 1. Install LSH-(101-105) on compressor knock-out pot. A. Connect to the DCS (00LAXX1-5). .2 Install PSL-(106-110) to compressor knock-out discharge line. l_p p/tG-SS ttt u '' A. Connect to the DCS (00PAX17-21). 3. Connect TSH-(106-110) to the DCS (00TAXX7-11). 4. Install PSL-(101-105) to compressor crankcase. A. Connect to the DCS (00PAX22-26). 5. Install TSH-101 and TSH-105 to CP-101 and CP-105 discharge lines. A. Connect TSH-(101-105) to the DCS (00TAX12-16). 6. Install PSH-(101-105) to the compressor discharge .line. A. Connect to the DCS (00PAX27-31). 7. Connect PSH-106 to the DCS (00PAX32). 8. Install LSHH-101 to the sphere knock-out pot (in existing nozzle). A. Connect to the DCS (00LAXX6). ABD00220107 VCM TANK FARM COMPRESSOR UPGRADE ABERDEEN PLANT JANUARY 09, 1992 Xi. WORK LIST (Continued:..) 9. Install /i-HX-101-N-A2-l from the bleeder valve west of CP-103 to the ERS knock-out pot. 14. Heat trace and insulate all lines from the drain line 1-HX-101-N-A2-1 to the compressor inlet. ABD00220108 DCS TIE - IN LIST INPUT DSC NUMBER 00LAXX1 00LAXX2 00LAXX3 00LAXX4 00LAXX5 OOLAXX6 00TAXX7 00TAXX8 00TAXX9 00TAX10 OOTAX11 00TAX12 00TAX13 00TAX14 00TAX15 00TAX16 00PAX17 00PAX18 OOPAX19 00PAX20 00PAX21 00PAX22 00PAX23 00PAX24 00PAX25 00PAX26 00PAX27 OOPAX28 00PAX29 00PAX30 00PAX31 00PAX32 SOURCE LSH-101 LSH-102 LSH-103 LSH-104 LSH-105 LSHH-101 TSH-106 TSH-107 TSH-108 TSH-109 TSH-110 TSH-101 TSH-102 TSH-103 TSH-104 TSH-105 PSL-106 PSL-107 PSL-108 PSL-109 PSL-110 PSL-101 PSL-102 PSL-103 PSL-104 PSL-105 PSH-101 PSH-102 PSH-103 PSH-104 PSH-105 PSH-106 OUTPUT DSC NUMBER 00HMX33 00HMX34 00HMX35 00HMX36 00HMX37 TO CP-101 CP-102 CP-103 CP-104 CP-105 ABD00220109 DCS INTERLOCKS LIST ALL COMPRESSOR SHUT DOWN INTERLOCK ALARM 00PAX27 00PAX28 00PAX29 OOPAX30 00PAX31 00LAXX6 00PAX32 00X120 00HA001 00HA105 DESCRIPTION HIGH DISCHARGE PRESSURE ON CP-101 HIGH DISCHARGE PRESSURE ON CP-102 HIGH DISCHARGE PRESSURE ON CP-103 HIGH DISCHARGE PRESSURE ON CP-104 HIGH DISCHARGE PRESSURE ON CP-105 HIGH LEVEL IN THE VCM SPHERE KNOCK-OUT POT HIGH PRESSURE IN THE ERS KNOCK-OUT POT SPHERE ISOLATION VALVE CLOSED SPHERE DELUGE SYSTEM ACTIVATED RAIL CAR DELUGE SYSTEM ACTIVATED SOURCE PSH-101 PSH-102 PSH-103 PSH-104 PSH-105 LSHH-IOI PSH-106 CP-101 SHUT DOWN ALARM DESCRIPTION 00LAXX1 HIGH COMPRESSOR KNOCK-OUT LIQUID LEVEL 00PAX17 LOW COMPRESSOR KNOCK-OUT POT DISCHARGE PRESSURE 00TAXX7 HIGH COMPRESSOR HEAD TEMPERATURE 00TAX12 HIGH COMPRESSOR DISCHARGE TEMPERATURE 00PAX22 LOW COMPRESSOR OIL PRESSURE ALL COMPP ESSOR SHUT DOWN ACTIVATED SOURCE LSH-101 PSL-106 TSH-106 TSH-101 PSL-101 WHEN ALL ALARMS ARE OFF, DCS WILL ENERGIZE 00HMX33. AN OPERATOR WILL BE REQUIRED TO START CP-101 THROUGH A LOCAL HAND SWITCH. GP-102 SHUT DOWN ALARM DESCRIPTION 00LAXX2 HIGH COMPRESSOR KNOCK-OUT LIQUID LEVEL 00PAX18 LOW COMPRESSOR KNOCK-OUT POT DISCHARGE PRESSURE 00TAXX8 HIGH COMPRESSOR HEAD TEMPERATURE 00TAX13 HIGH COMPRESSOR DISCHARGE TEMPERATURE 00PAX23 LOW COMPRESSOR OIL PRESSURE ALL COMPRESSOR SHUT DOWN ACTIVATED SOURCE LSH-102 PSL-107 TSH-107 TSH-102 PSL-102 WHEN ALL ALARMS ARE OFF, DCS WILL ENERGIZE OOHMX34. AN OPERATOR WILL BE REQUIRED TO START CP-102 THROUGH A LOCAL HAND SWITCH. ABD00220110 DCS INTERLOCKS LIST (CONTINUED...) CP-103 SHUT DOWN ALARM DESCRIPTION 00LAXX3 HIGH COMPRESSOR KNOCK-OUT LIQUID LEVEL 00PAX19 LOW COMPRESSOR KNOCK-OUT POT DISCHARGE PRESSURE 00TAXX9 HIGH COMPRESSOR HEAD TEMPERATURE 00TAX14 HIGH COMPRESSOR DISCHARGE TEMPERATURE 00PAX24 LOW COMPRESSOR OIL PRESSURE ALL COMPF ESSOR SHUT DOWN ACTIVATED SOURCE LSH-103 PSL-108 TSH-108 TSH-103 PSL-103 WHEN ALL ALARMS ARE OFF, DCS WILL ENERGIZE 00HMX35. AN OPERATOR WILL BE REQUIRED TO START CP-103 THROUGH A LOCAL HAND SWITCH. CP-104 SHUT DOWN ALARM DESCRIPTION 00LAXX4 HIGH COMPRESSOR KNOCK-OUT LIQUID LEVEL 00PAX20 LOW COMPRESSOR KNOCK-OUT POT DISCHARGE PRESSURE OOTAXIO HIGH COMPRESSOR HEAD TEMPERATURE 00TAX15 HIGH COMPRESSOR DISCHARGE TEMPERATURE 00PAX25 LOW COMPRESSOR OIL PRESSURE ALL COMPF ESSOR SHUT DOWN ACTIVATED SOURCE LSH-104 PSL-109 TSH-109 TSH-104 PSL-104 WHEN ALL ALARMS ARE OFF, DCS WILL ENERGIZE 00HMX36. AN OPERATOR WILL BE REQUIRED TO START CP-104 THROUGH A LOCAL HAND SWITCH. CP-105 SHUT DOWN ALARM DESCRIPTION 00LAXX5 HIGH COMPRESSOR KNOCK-OUT LIQUID LEVEL 00PAX21 LOW COMPRESSOR KNOCK-OUT POT DISCHARGE PRESSURE 00TAX11 HIGH COMPRESSOR HEAD TEMPERATURE 00TAX16 HIGH COMPRESSOR DISCHARGE TEMPERATURE 00PAX26 LOW COMPRESSOR OIL PRESSURE ALL COMPF ESSOR SHUT DOWN ACTIVATED SOURCE LSH-105 PSL-110 TSH-110 TSH-105 PSL-105 WHEN ALL ALARMS ARE OFF, DCS WILL ENERGIZE 00HMX37. AN OPERATOR WILL BE REQUIRED TO START CP-105 THROUGH A LOCAL HAND SWITCH. ABD00220111 VCM TANK FARM COMPRESSOR UPGRADE ABERDEEN PLANT JANUARY 09, 1992 LEGEND . LX LX (= ) A CP HM HS L LSH LSHH PG P PSH LSH T TSH NEW EXISTING 4 WAY VALVE VALVE CHECK VALVE DCS INPUT/OUTPUT ALARM COMPRESSOR OUTPUT TO MOTOR LOCAL HAND SWITCH LEVEL DCS SIGNAL HIGH LEVEL SWITCH HIGH-HIGH LEVEL SWITCH PRESSURE GAUGE PRESSURE DCS SIGNAL HIGH PRESSURE SWITCH LOW PRESSURE SWITCH TEMPERATURE DCS SIGNAL HIGH TEMPERATURE SWITCH j ABD00220112 VCM TANK FARM COMPRESSOR UPGRADE ABERDEEN PLANT JANUARY 09, 1992 & NOTES a N1 PSL-(107-110) are existing/pressure switches. The switches will be relocated from the compressor discharge line to the compressor knock-out pot discharge line of compressors CP-(102-105) . A pressure switch, PSL-10dp will be installed on the compressor knock-out pot discharge line for CP-101. 00PAX17-21 will indicate a pressure of 8 psig or below. When the alarm^activated, the individual-compressor will be shut down. N2 LSH-(lOl-yy^) (00LAXX5-10) will shut down the individual compressors when liquid is detected in the discharge line from the knock-out pot. N3 f) * TSH-(106-110) (00TAXX7-11) are existing temperature switches located on top of the compressor head. All lines are connected to a control box with a set point of 340 degrees F. The control box will be tied into DCS. This; will, shut down the individual compressor^, TSH-(101 and ^05) ^(00TAX12-16) are new temperature switches. TSH-(102-104) f-'are existing temperature switches located on the J discharge line of the compressors. An individuaI Olf cUoUmUipprmebsbsUoIr stahliuuut UUoWwIn1 wWiillll occur at 230 degrees F. N5 PSL-(101-105) (00PAX22-26) are low pressure switches located on the compressor crankcase. An individual compressor shut down will occur at 12 psig. N6 PSH-(101-105) (00PAX27-31) are high pressure switches located on the discharge of the compressor. All compressors will be shut down at 125 psig. N7 PSH-106 (00PAX32) will shut down all compressors when the Emission Recovery System knock-out pot builds up pressure to 75 psig. N8 LSHH-101 (00PAXX6) will shut down all compressors before the sphere knock-out pot overflows. \ ABD00220113 * v VCM TANK FARM COMPRESSOR UPGRADE ABERDEEN PLANT JANUARY 09, 1992 NOTES (Continued...) N9 N10 The liquid VCM drain line will tie into a bleeder valve on the VCM vapor line. This bleeder valve is located west of compressor CP-103. A check valve will be installed in this line. f All lines will be heat traced and insulated from the drain line to the compressor inlet. This includes the compressor knock-out pots.