Light Liquid Sampler - YZ Systems

1 Light Liquid SamplerS Y S T E M S U P P O R T M A N U A ,3, ,3,5P-1 AINSTRUCTION & OPERATINGMANUALV ersion: 07232002 Rev-BHow to Use this ManualThe ,3,5P-1A Operations Manual is astep-by-step guide containing the proceduresneeded to work with the ,3, LPR-2S System Series of samplers implementthe most advanced technology available in theindustry. It is recommended that the techniciansworking with the LPR-2S Systems study the manualprior to initiating work on the system for the ConventionsTo aide in readability, this manual uses severaltypographic conventions. References to illustra-tions, photographs, and other related content willappear in italicized text along with the location ofwhere to find the item in the manual. Digital ver-sions of the manual, available in Adobe Acrobat PDF format, will be highlighted further in blue italictext indicating the copy retains a hyperlink to thereferenced units are listed in italic parenthesistext following their US standard equivalent.

2 As anexample, for defining a distance, 15' ( meters), ishow the text will appear throughout the that require action, for example the pressing of akey for programming the controller, will feature theaction item in sentence case Bold Text followed innormal text by the item such as, the Up Arrow key orMain Power HelpThis manual provides solutions to typical questionsabout the ,3,5P-1A system. If theanswer can not be found within this manual, contactYZ Systems at:T: : : : calling, have this manual close at calling or writing, please include in yourcommunique the following information: The serial number of the PNR-2S System and theversion number of this manual. The serial numberis located on the inside of the enclosure door. Theversion number of this manual is located at thebottom of each page.

3 A description of the problem and, if applicable theactions of the technical personnel when SpecificationsMaximum gallons/day ( liters/day)Maximum Operating Pressure: 1,800 psig(124 Bar (g)Pump Displacement:.25 - cc/StrokeOperating Temp Range:0 to 140 degrees F.(17 C to 60 C)Pulsed Power Supply:24 vdc @ 1 AMPA ctuation Gas;80 psi InstrumentQuality GasNote: at temperatures below 32 F (0 C), condition-ing of the actuation gas supply may be the actuation gas supply has a high watercontent and/or a low hydrocarbon dew point, addi-tional actuation gas filtration or heating of the actua-tion gas supply may be necessary. Bottled nitrogencan also be used during cold operating conditions toavoid condensation in the actuation gas supply addition, operation at extreme temperatures mayaffect system performance.)

4 To enhance the perfor-mance of this system, adequate heat should beprovided to maintain an operating environmentabove 30 F (-1 C).LPR-2S-( )P-1A Version 07232002YZ Systems , Inc. 3101 Pollok Drive Conroe, Texas USA 77303 P: F: Of ContentsSection 1 System Introduction 3 Section 2 Sample Pump and Balance Valve 6 Section 3 Five-way Cross 9 Section 4 Product Accumulator Vessel 11 Section 5 Precharge Gas System 14 Section 6 Actuation/Mixing Power Source 16 Section 7 System Electronic Control 18 Section 8 System installation and Start-up 202 About This :The purpose of this manual is to provided a step-by-step guide to the operation, installation and mainte-nance of your YZ Light Liquid Hydrocarbon Sam-pling System.

5 It should be read by both first-timeand experienced measurement technicians whowant to learn about the components and operationof the system. The manual has been organized intosections, which are summarized as follows: Section 1 - "System Introduction"Includes an overview of the systemcomponents, a description of how thesystem operates, a schematic systemdiagram, and a system layout of the skid. Section 2 - "Sample Pump and Balance Valve" Section 3 - "Five-way Cross" Section 4 - "Product Accumulator Vessel" Section 5 - "Precharge Gas System" Section 6 - "Actuation/Mixing System Power Source" Section 7 - "System Electronic Control"These sections include details on thefunction, location, operation and mainte-nance of individual components of thesampling system. Section 8 - "System installation and Start-up"Includes detailed instruction on the properway to install your YZ Sampler . Likewise, astep-by-step start-up procedure is to guideyou through commissioning the ( )P-1A Version 07232002YZ Systems , Inc.

6 3101 Pollok Drive Conroe, Texas USA 77303 P: F: 1: System IntroductionTheory of Operation:The LPR-2S-( ,3,5)P-1A is a complete samplingsystem designed to sample Light Liquid of individual samples are captured andcombined to develop a representative, compositesample of the flowing of the sampling system centers aroundthe following primary components: the LPR-2 Sample Pump, the Product Accumulator Vessel, theElectronic Control System, and the Precharge GasVessel. All equipment is mounted on a 2' x 2' struc-tural steel skid. These components are shown in thediagram on the following sampling system operates on a simple the system receives a closed contact signalby others, the time delay relay electronic control unitenergizes the system solenoid valve. Energizing thesolenoid valve forces a pneumatic signal into theactuation cylinder of the sample pump, which in turncauses the pump to stroke.

7 When the pumpstrokes, a small sample is displaced into the productaccumulator vessel. Once the solenoid valve is de-energized, the sample pump plunger returns to itsnormal position. This action captures a new sampleinto the pump. When the system receives the nextclosed contact signal, the cycle begins purpose of the YZ Light Liquid hydrocarbon sam-pling system is to capture and maintain a represen-tative Liquid sample of the pipeline product. Thesampled product is maintained in a Liquid phase bythe product accumulator vessel s free floating pistonand the precharge gas system. In order for thesystem to function properly, pipeline product must besingle phase, Liquid properly adjusting both the sample size and thesample frequency, the sample vessel will fill to 80%capacity at the end of the sample period. Once thesample period is complete, the product within theaccumulator vessel is thoroughly mixed using thepower mixer.

8 A representative sample can then beremoved from the product accumulator vessel usingthe YZ Durasite, a DOT approved constant pressuresample vessel. After removing the remainder of theproduct from the accumulator vessel, the system isthen ready for a new sample 1: System IntroductionNORMALLY CLOSED VALVENORMALLY OPEN VALVEPRECHARGEELECTRICALPRODUCTPNEUMATIC PIPRESSURE GAUGEPRESSURE REGULATORRELIEF VALVEL E G E N D ENCLOSURE120 VACCONTACT INPUTLPR-2 SAMPLINGPUMPPRODUCTRETURNPRODUCTINLETINS TRUMENT100 PSI(BY CUSTOMER)CONTROLSYSTEMAIRSMIXINGVALVESAM PLE VESSELISOLATION VALVEVESSELSAMPLEVALVEPRODUCT REMOVALVESSELPRECHARGEPI24 VDCLPR-2S-( )P-1A Version 07232002YZ Systems , Inc. 3101 Pollok Drive Conroe, Texas USA 77303 P: F: 1: System Introduction(By Customer)120 VAC &Pneumatic PowerMixerProduct AccumulatorVesselInstrument Air3-Way SolenoidValveProduct RemovalValvePrecharge SupplyProduct Loop ReturnLPR-2 cc/stroke Volume Scale(cc's)Magnetic VolumeIndicatorBalance ValvePrecharge VesselProduct Loop SupplyRelief Valve 24"86" 5 Gallon56" 3 Gallon 40" GallonLifting HookPrecharge SupplyMixing ValveFilter RegulatorPrecharge Vessel24"Product AccumulatorVesselDry Contact(by Customer)Closure InExplosion-ProofEnclosure24 VDC6 Section 2: LPR Sample PumpThe LPR-2P Sample Pump is a positivedisplacement plunger pump designed to mount onthe Sampler , refer to page 7.

9 It has an adjustabledisplacement of to cc and achieves propor-tional-to-flow sampling through a proportional to flowsignal provided from some other flow the plunger returns upward after completing astroke, the pump chamber fills with product throughthe inlet check valve. The inlet check valve is a darttype valve designed to seat on an o-ring. The inletcheck valve is spring loaded to ensure a positiveseating action after every stroke. When the pumpis actuated by the pneumatic actuation system, theplunger moves downward, displacing productthrough the discharge check valve known as thebalance balance valve automatically senses pipelinepressure and adjusts to ensure that product is notallowed to free flow to the product vessel, refer topage 8. When the pipeline pressure is greater thanthe precharge pressure on the accumulator vessel,the balance valve dart is pushed up against the seatand the top head of the balance valve.

10 As the pumpstrokes, the pressure created in the pump chamberforces the balance valve dart off the seat, allowingproduct to be pumped to the accumulator the pump completes its stroke, the pressureacross the balance valve equalizes and the dart isreturned to a sealing position by its the event that the accumulator vessel prechargepressure is greater than the pipeline pressure, thebalance valve dart and seat are pushed apart by theproduct pressure in the accumulator vessel. In thissituation the check valve wafer located between thebalance valve and the sample pump acts as a backcheck to prevent the escape of product previouslycaptured in the accumulator vessel. As the pumpstrokes, the pressure created in the pump chamberforces the check valve wafer off the seat, allowingproduct to be pumped to the accumulator the pump completes its stroke, the pressureacross the check valve equalizes and the wafer isreturned to a sealing position by its ( )P-1A Version 07232002 Rev-BYZ Systems , Inc.