Magnetic Driven Centrifugal Pump SLM AVP/NVP API · PDF filecentrifugal pumps designed and...
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Transcript of Magnetic Driven Centrifugal Pump SLM AVP/NVP API · PDF filecentrifugal pumps designed and...
SLM AVP/NVP
Safety andEnvironmentalProtection byKlaus Union toAPI 685This pump, designed for use inrefineries and the petrochemicalindustry, represents a furtherdevelopment in the range of seallesscentrifugal pumps designed andmanufactured by Klaus Union whohave a proven reliability in this area.With the SLM AVP pump, Klaus Unionintroduces a further element of its mo-dular pump series to comply with thelatest requirements – and to offer neweconomic solutions.Particularly in the refinery sector andthe petrochemical industry wherepumps transport aggressive, toxic andexplosive liquids under the highestsafety conditions, the requirementshave increased and multiplied.
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Secondary SealingControl connection-indication in caseof leakage of the inner isolation shell
Temperature Monitoringof the isolation shell temperature
Isolation Shell with Secondary SealingThe control double skin isolation shellprevents the liquid from leaking to theatmosphere even in case of damage tothe inner isolation shell
Flushing SystemSufficient pressure is maintained tosafely control liquids being processedclose to their boiling point
Thrust Bearing LoadHydraulic measures reduce axial thrustover the complete performance range
Journal BearingsDouble bearing made of SSiC.Counter centred combination ensurestheir universal use over a widetemperature range
Wear Rings- interchangeable
Static GasketsStatic confined controlled compressiongaskets
Outer Magnet CarrierHub fastened with screwsShort-circuit body with mechanical,non-sparking rub ring
Leakage Monitoringand draining connection
Drainwith flange
The new pump series designed to thestandard of the American PetroleumIndustry (API 685) is a furtherdevelopment with regard to safetyregulations compared to the currentlyused pumps with mechanical seal toAPI 610.
The API 685 standard defines thestandardized technology tosuccessfully implement the advantagesof sealless pump technology such asabsolute integrity, operationaldependability and reliability.
The SLM „API“ series covers the entireperformance range of single-stagecentrifugal pumps. For specialapplications, multistage pumps andpumps of high-pressure design canalso be supplied.
SLM AVP: Construction series to API685 and hydraulic component to ANSI/ ASME B.73.1M
SLM NVP: Construction series to API685 and hydraulic component to DINEN 22858
Construction• magnet drive• leak-free• API 685• horizontal pump• process type• modular system of standardized• units• centerline support
Quality AssuranceIt is the policy of Klaus Union to achieveadequate quality assurance for themanufacture of all products to ensurethey comply with contractual require-ments. All subsuppliers are totallycommitted to assure and achieve thecontractual requirements throughvigorous implementation of the qualityassurance program. All purchasedmaterial is repeatedly inspected forconformity on receipt and afterassembly.The quality assurance systemestablished according to latest state-of-the art principles fully complies with therequirements specified in internationalcodes and regulations.A quality assurance system that hasbeen verified and certified to DIN ENISO 9001 : 2000 warrants that the
requirements imposed by you are fullycomplied.
Klaus Union is the holder of thefollowing approval stamps:
– AD 2000 W0 / TRD 100– AD 2000 HPO / DIN EN 729-2– Inspection of a Production Facility
for Pressure Vessels according toDirective 97/23 EC module F + G
Transport Screw Inner Magnet Carrierwith mechanical rub ring
Thermal BarrierReduces the heat transfer to thebearing support where high operatingtemperatures are required
Bearing SupportOil lubrication with thermal barrierand labyrinth sealing
Casing and Bearing LanternCenterline support
3subject to alterations
4
SLM AVP/NVP
Applicationprofiles to API610/685Fields of Application:
The pumps of the SLM AVP and SLMNVP series are universally applicableheavy-duty process pumps withmagnet drive. They meet the highestrequirements with regard to integrity,environmental safety, and ease ofmaintenance.
The pumps are leak-free andparticularly suitable for pumping toxic,aggressive, inflammable and otherenvironmentally hazardous liquids in
• refineries• oil- and gas fields• on-/offshore plants• gas processes• the processing of liquids• the petrochemical industry• the chemical industry
Construction Features:
Construction and equipment of thesingle-stage, single-suction horizontalprocess-type centrifugal pumpscorrespond with the requirements ofthe API 685 standard. The pumps areof process-type design with radiallysplit casing and flanged-on bearingsupport.
The volute casing and the bearingsupport are fastened with theircenterline feet to the base frame.
By means of the centerline support,adverse consequences of thermalexpansion and thus misalignment ofthe coupling are avoided.
The impeller is of closed radial design.
Magnet Drive:
The magnet drive eliminates the needfor shaft passages since the motortorque is transmitted to the perfectlysealed chambers in the absence ofany mechanical contact. Thisadvanced technology involves thecentral coupling where the permanentmagnets with the same even numberof poles are alternating thus ensuringa perfect rotational symmetry.
The concentric design of the couplingsafely prevents any undesired radialand axial forces from acting on thejournal bearings.
Variation of the torque to any requiredoperational mode is made by varyingthe system diameter and its height.
Journal Bearings:
SLM AVP and SLM NVP pumps requirethe installation of a hydrodynamicjournal bearing in the liquid chamber.These are lubricated by the pumpedliquid. As a standard, the journalbearing combinations aremanufactured of pure, sintered siliconcarbide.
This material is characterized by highresistance to wear and excellentendurance.
Single-Stage Pumps:
Rate of flow:Q = 2.5 to 2500 m³/h
11 USgpm to 11000 USgpm
Delivery head:H = 6 to 200 m L.C.
20 to 650 ft. L.C.
Higher capacities on demand
Pressure Ratings:
Flanges to ANSI / ASME B16.5,Class 300 (PN50)
Temperature: -120 °C up to +450 °Cmax.
Higher requirements on demand
Materials:
On demand
Multistage Pumps:
Rate of flow:Q = 5 m³/h to 450 m³/h
22 USgpm to 2000 USgpm
Delivery head:H = up to 900 m L.C.
2950 ft. L.C.
SLM AVP/NVP
Systematic designwith safety inmind
Klaus Union has taken full advantage ofover 40 years experience in the designand manufacture of magnetic drivepumps.
We fully appreciate the high safetyrequirements demanded by the marketswe serve and this is always reflected inthe design and construction of thepumps and monitoring systems.
The design and concept of thiscompletely new pumps takes fulladvantage of our experience and useswell proven techniques and technology.
Rub Ring ProtectionIn the event of journal bearing or ballbearing failure, the rub rings preventimmediate damage to the isolation shellfrom either the inside or outside. For therub rings to be effective they must beused in conjunction with an input powermonitoring arrangement on the drivemotor. (LC Controller)
Replacement of Anti-frictionBearings without Draining ofPumpBy splitting the bearing bracket intointermediate lantern and bearingsupport, wear parts (anti-frictionbearings) can be replaced withoutcostly disassembly or drainage of thepump.
Temperature SensorThe internal recirculation can bemonitored by measuring thetemperature of the isolation shell.
Load Detector (LC)This monitors the shaft power and tripsthe pump if it detects under-load causedby cavitation, flow interruption ordesynchronisation of the magnet driveor overload due to mechanical contactof the rub rings.
Secondary Sealing by CDS-SystemThe „Control Double Skin IsolationShell Monitoring“ (CDS) allows for theprovision of a defined failure signalthrough the network path between theinner and the outer isolation shells.The indication of a leakage of theinner isolation shell is effected bymeans of a manometer or a pressuremeasurement. According to the APIregulations, the pump is stillconsidered sealed and operation canbe continued with single safety.
Flush Flow MonitoringBy feeding the required flush flow ratevia the external connection at theisolation shell flange, the flush flowcan be monitored by a flowmeter. Ifthe minimum flush flow rate is lessthan specified, the pump is de-energized.
Anti-Friction BearingsBy means of a Shock PulseMeasurement (SPM), onset of anti-friction bearing failures can bedetected early. On customer’s demand,the pump will be provided withappropriate test nipples in the area ofthe anti-friction bearings.
5subject to alterations
Thermal Barrier
Journal Bearing
Flushing System
Thrust BearingLoad
The thermal barrier protects thebearing support from high liquid orheating chamber temperatures. Itworks like an air cooler providing alarge surface area for the dissipationof heat by convection. For the firsttime the thermal barrier permits theuse of close coupled pumps at highoperating temperatures.
This completely new design of wearresistant journal bearing manufacturedin SSiC is used universally across therange. The different coefficients ofexpansion of the materials used arecompensated for both axially andradially by a counter centring design.The operating range of the newbearing cartridge is from -120°C upto +350°C.
The internal recircualtion ensures thatadequate pressure is maintained at alltimes permitting the safe use of thepump even on liquids close to theirboiling point. The flush flow is takenfrom an area with reduced solids andis separated into two distinct flowpaths. Flush flow QT1 dissipates thefrictional heat generated by thejournal bearing. Flush flow QT2dissipates the heat generated by eddycurrent losses in the isolation shell.This flushing system provideds analmost constant flush flow rate andpressure even when the pump ismisused.
With the new design system the axialloads in the thrust bearings aresignificantly reduced across the entireoperating range of the pump.
6
1
45
6
2
3
20°C to 120°C 120°C to 350°C
QT1
QT2
+ Q/Qopt=1 –
Axial Thrust
Differential PressureInternal RecirculationCapacity
Isolation Shell with SecondarySealing (CDS-System patented)The Control Double Skin Isolation Shell (CDS)completely fulfils the requirements of APIStandard 685, Section 6.8. Indication of aleakage of the inner isolation shell is effectedthrough the network path between the innerand the outer isolation shells to the controlconnection flange. A further processing of thesignals can be effected by a pressuremeasurement.
12
3
4 5
6
p1
p2
QT1
QT2
7subject to alterations
subj
ect t
o al
tera
tions
08.
04.1
08 e
Pumps
Chemical centrifugal pumps acc.DIN EN 22858
Multistage casing pumps
Horizontal and vertical propellerpumps
Bottom flange propeller pumps
Vertical centrifugal pumps(Nobox system)
Submerged pumps
Double-suction chemical pumps
Special designs
ProductionProgrammeValvesGlobe valves with stuffing box
Globe valves bellow sealed
Check valves
Gate valves
Swing check valves
Strainers
Sight glasses
Bottom valves
Relief valves
Control valves
High pressure valves
Valves for cryogenics
Valves with electric orpneumatic drive
Our Service:Very close tocustomers –all over theworldThis most unique drive system,a wide range of products in bestquality as well as many years ofexperience have made KLAUSUNION a worldwide leadingsupplier of pumps with magnetdrives and valves. All over theworld we are represented withour own companies, salesoffices and agencies. All overthe world we are offeringcomplete services from perfectproposals and advice up totechnical after-sales service.
Klaus UnionGmbH & Co. KG
Blumenfeldstr. 18D-44795 Bochum
Postfach 101349D-44713 Bochum
Tel. (0234) 45 95-0Fax (0234) 43 23 87
Internet: http://www.klaus-union.deE-Mail: [email protected]
ProductionProgrammePumpsSLM-Pumps with magnetdrives
Oil refinery centrifugal pumpsacc. to API 685
Chemical centrifugal pumps acc.to DIN EN 22858
Chemical centrifugal pumps inclose coupled design
Multistage casing pumps
Side channel pumps
Vertical centrifugal pumps
Submerged pumps
Self-priming spiral casing pumps
SLM CIP (cleaning in place) forfood and pharmaceuticalsindustry
Screw pumps
Special designs
SLM agitator drives
Plastic chemical pumps acc. toDIN EN 22858