Oil-free, water-injected screw compressors LENTO ... - Duncan Rogers

Gulf of Maine Marine HabitatCharacterization and MappingA Workshop Report andStrategy for Ocean Mapping in the Gulf of MaineOctober 21-23, 2001 • Sebasco Estates, MainePrepared by the Gulf of Maine Council on the Marine Environmentwith assistance from naturesource communications

Intelligence, Innovation, Reliabilityclean compressed air, economically produced:100% oil-free compressed airmaximum flexibility through variable and fixed speedenormous energy-saving potentialrobust and quietsafe in operation by proven designclear, simple layout for ease of serviceflexible operating pressure 5 – 10 bar, continuously variableMaximum benefits for our customers:This premise is the defining characteristic ofeveryone at ALMIG.Our products benefit from the latesttechniques in research and developmentand are manufactured according toISO 9001: 2000 / ISO 14001: 2004 / IRIS.They fulfil all acceptance conditionsaccording to ISO 1217 – 3 annex C – 1996and agree with the CE-guidelines.Even the most stringent conditions, such asDET NORSKE VERITAS, GERMANISCHERLLOYDS, BUREAU VERITAS LLOYD’S REGISTEROF SHIPPING, ABS among others, are for usfrom ALMIG a matter of course.ISO 9001 ISO 14001intelligent compressed air ... everywhere intelligent compressed air ... everywhere intelligent compressed air ... everywhere

Construction, Technology, Highlights Compressor– single stage, water-injected airend– bronze alloy stator– plastic compound rotors– lowest compression temperaturesless than 60°C– computer-designed compressor with35,000 hours between bearing change SCD motor– highly efficient drive motor– IP 55 protection class F– compact, powerful and safe in operationdesigned for maximum cooling Integrated dryer with triple taskinga) producing fresh water for thepermanent generation and circulationof the coolant requiredb) for optimum biological and chemicalwater qualityc) provides dry compressed air at the inputto the compressed air network Water circuit– closed water circuitwith independent, integratedwater feed– multi-stage separation for drycompressed air SCD direct drive– loss-free power transmission– optimum performance SCD frequency converter– fully integrated system– conforms to EMC directives Air Control– the compressor's intelligence– thinks, monitors and recordsThe “LENTO concept” from ALMIG: oil-free, direct drive and speed-controlled

Data, Facts, Analysesvariable speedfixed speedType Operating Flow* to Motor-rated Length Width Height Weightoverpressure ISO 1217 (Appendix C-1996) outputbar min. max. kW mm mm mm kg(m 3 /min) (m 3 /min)LENTO 15 5 – 10 1.01 2.34 15 1880 850 1660 850LENTO 18 5 – 10 1.01 2.87 18.5 1880 850 1660 860LENTO 22 5 – 10 1.01 3.38 22 1880 850 1660 870LENTO 30 5 – 10 1.01 4.30 30 1880 850 1660 920LENTO 31 5 – 10 2.04 5.08 30 2300 1400 1560 1470LENTO 37 5 – 10 2.04 6.14 37 2300 1400 1560 1520LENTO 45 5 – 10 2.04 7.13 45 2300 1400 1560 1550LENTO 55 5 – 10 2.04 8.19 55 2300 1400 1560 1590LENTO 18 D 5 – 7 2.68 18.5 1880 850 1660 840LENTO 22 D 5 – 10 2.68 22 1880 850 1660 850LENTO 31 D 5 – 8 4.90 30 2300 1400 1560 1450LENTO 37 D 5 – 10 4.90 37 2300 1400 1560 1500.* V referred to operating overpressure of 7 barLENTO, the system solution for:water-cooled/air-cooled optionallyApplication 1 Application 2Application 3oil-lubricatedoil-freeLENTO, the oil-free compressed airprovider as a free-standing system or asa multi-unit solution for economical, oilfreecompressed air production in the mediumoutput range.The benefits for you: cost-effective,operationally safe with low maintenancecompressed air productionLENTO, the oil-free, speed-controlledcompressed air provider is best suited totake over in existing oil-free compressedair stations as the master “command”system.The benefits for you: the entire stationbecomes more economical immediately,and peaks in consumption can be bufferedby “governing”.LENTO, the oil-free compressed air producer,as safe alternative to replaceoil-lubricated with oil-free compressedair cost-effectively in critical sectors(such as foodstuffs, chemicals andpharmaceuticals).The benefits for you: high security for yourproducts (no oil present) and fewer wastedisposal problemsintelligent compressed air ... everywhere intelligent compressed air ... everywhere intelligent compressed air ... everywhere

Intelligent technology at the point of delivery!The LENTO concept offerstechnological advantages with no compromise:HIGHLIGHTHIGHLIGHTHigh quality, 100% oil-free compressed air isdemanded not only in pharmacy, foodstuffs,electrical engineering and medical industries,but is very important in all applications whereproducts of highest quality are produced.Only water, the most natural of all raw materials,is used in the compression process. The result is:clean, environmentally friendly compressedair with no oil; dirt and other dust particlesdrawn in are being cleaned by the watertreatment systemclean condensate (pure water) can be feddirectly into the drains systemlowest temperatures during compressionthrough optimum heat transfer via the waterand this with minimum energy consumptionHIGHLIGHTHIGHLIGHTHIGHLIGHTThe LENTO range of speed-controlled directdrive compressors provide optimum economyby: exactly matching the flow from thecompressor to the compressed airrequirements at any time avoidance of switching cycles and theconsequent costly no-load periods energy-saving start-up, with no current surge freely selectable operating pressure from5 – 10 bar in 0.1 bar incrementsThe reduced pressure produced saves youmoney!The combination of the “energy-saving duo”is unbeatable:The integrated dryer:the LENTO with “fixed speed” covers the basicload for a compressor stationthe LENTO with “variable speed” takes upany additional requirement, e. g. peaks inconsumptionensures minimum compressed air outputtemperatures, i. e. a separate dryer may notbe requiredreduces costs and simplifies installation asno additional water is requiredCompressedairrequirementConventionalno loadcontrol100 %50 %0%100 %50 %0%(Closed loop/ 100 %variable) speedcontrol by 50 %means of SCD0%technologyFull loadcurrent drainMotor (A)Pressure range(bar)9.29.08.88.68.48.28.07.8876543210upper switching pointlower switching pointno load periodsDirect start-up Star/DeltaConventional no load controlsavingspotentialTracking timeLENTOtimetimetimeClean start-upStart-up time (s)LENTOHIGHLIGHTMinimised service and maintenance costs comparedwith other oil-free compression systemswith fewer service items

Products, Concepts, SolutionsBuilt on the needs of the customerWith our innovative system concepts weoffer customised solutions for almost allapplications.Our endeavour lies not only in supplyingcompressors, we offer ourselves as acompetent system provider, who is able tooffer solutions to all users of compressed air.That does not only apply to the consultationand installation phase of your new compressor(s),but naturally continues in all areas ofservice, maintenance and visualisation.Challenge us!ScrewcompressorsPistoncompressorsBlowerTurbocompressorsCompleteaccessoriesControl,regulate,monitor constant speed2.2 – 500 kW/5 – 13 bar variable speedcontrolled anddirect drive3 – 315 kW/5 – 13 bar oil-free, withwater injection15 – 55 kW/5 – 10 bar oil-free,up to 10 bar1.1 – 12 kW for normalpressure upto 10 bar1.5 – 15 kW for mediumpressure upto 15 bar1.5 – 15 kW for high pressureup to 40 bar2.2 – 45 kW as a booster for aninput pressure upto 15 bar and anoutput pressureup to 40 bar2.2 – 30 kW at constant speed1.5 – 55 kW300 – 1000 mbar with speedregulator anddirect drive3.0 – 55 kW300 – 1000 mbar oil-free,up to 9 bar65 – 370 kW refrigerationdryers0.27 – 100 m 3 /min desiccant dryers0.08 – 145 m 3 /min activated carbonadsorbers0.08 – 145 m 3 /min filters,all particle sizes0.5 – 225 m 3 /min completecondensatemanagement up to120 m 3 /min lead-lag control consumptiondependantcontrol visualisation(we bring yourcompressed airto the PC) tele-monitoring(the hotline ofyour compressedair station)Your specialistLeaflet_LENTO_gb_08_2007