LEWA intellidrive. The mechatronic All-in-One pump system. intelligent flexible dynamic high precision. Foto: ratiopharm

Transcription

1 The mecharonic All-in-One pump sysem Foo: raiopharm inelligen flexible dynamic high precision

2 For diverse applicaions: a limiless range of poenial uses Phoo: raiopharm Mixing wo media in one pump head: wih sapien drive. Precision filling: synchronizes wih he filling machine, e.g. in he pharmaceuical indusry. By inelligenly overlaying he feed flows of wo single pumps, i is possible o preven pressure pulsaion, even wihou pulsaion dampers. LEWA engineering for your special applicaion. LEWA is uniing wha was previously separae: Pumps wih sandard frequency-conrolled drives and separae sroke adjusmen acuaor can now be combined ino one uni. This simplifies he insallaion and wiring effor, since pre-wired plugs a he pump moor connec he supply and signal lines o he conroller. As a new feaure, a parial sroke mode handles sroke lengh adjusmen for adjusing he volumeric feed rae. In his process, he pump pison does no fully ravel o fron dead cener in he compression sroke phase he pison sops before his poin depending on he desired volumeric flow rae and ravels in reverse for he sucion sroke. Operaors in he pharmaceuical indusry will especially welcome he new selfcooling, venilaor-free moors. The innovaion of being able o aler he angular velociy during a revoluion (i.e. wihin he compression and/ or sucion phases as well) no only allows sroke velociy o be modified variably; more imporanly, i offers maximum flexibiliy and he abiliy o reac o highly challenging engineering processes. Naurally, here is field bus communicaion: Inerfaces for Eherne and Profibus, for example, guaranee smooh sysem inegraion. Analog inpus and oupus e.g. for valve conrol are expandable. is also available in a sand-alone varian wih user inerface and he necessary conrol inelligence compacly inegraed in he drive uni. As an opion, he sysem may also be inegraed ino a higher-level process conrol sysem. 2

3 Pumping high-viscosiy fluids: masers differen sucion and compression sroke frequencies. Convenional drive sysem sucion = compression Longer sucion sroke = longer compression sroke = larger pump head sucion compression When feed volumes are variable: Producion wih minimizes downimes, e.g. in exrusion echnology. Convenional drive sysem Pump M M Feedback Sroke adjusmen uni Conroller Power connecion 2 Power connecion 1 PTC hermisor Reversing conacor swich Frequency converer Reversing conacor swich 0/4 20 ma Mains connecion 1 Mains connecion 2 Power connecion SM Frequency Sensors Pump converer & PLC Drive Conroller Mains connecion 1 0/4 20 ma 3

4 For specific requiremens: individually designed for you Engineering sysem/ conrol console Eherne Eherne HMI Decenralized peripherals Profibus Decenralized peripherals gives you maximum flexibiliy hanks o is sofware-based funcionaliy Sandardized drive and auomaion hardware ogeher wih LEWA know-how ha is buil ino he sofware o mee your individual requiremens. The diagram illusraes an example of a configuraion model. HMI = Human-Machine Inerface combines pracice-proven LEWA diaphragm pump echnology and he laes advances in drive echnology. Highly efficien compac moors reduce life-cycle coss considerably. Closed-loop speed and posiion conrol wih feedback of acual kinemaic daa (displacemen-ime daa) for he elecric drive make i possible o implemen enirely new funcions offering more poenial applicaions. Example: High-resoluion and precise pison posiioning enables very precise feeding of defined maerial volumes for filling purposes. Besides he sandard pump heads, special varians may also be used, e.g. acid-resisan heads wih PTFE lining, which is ypical of LEWA producs. 4

5 Use of single pump for simple conrol requiremens, e.g. highprecision filling Dual-pump layou for virually pulsaion-free meering Synchronizable muli-pump layou is able o adjus he drive-side angular velociy on he fly o adap fluid kinemaics o he specific requiremens of your process. The diagrams illusrae in a direc comparison o sandard drive sysems how reduces flow pulsaion. Wih a second pump in he sysem layou, i is possible o generae nearly pulsaion-free volumeric flows by precise elecronic synchronizaion of he mechanically decoupled pumps. Posiion of eccenric shaf Angular velociy of eccenric shaf Angular acceleraion of eccenric shaf Pison acceleraion a Pison velociy v Pison displacemen s Sandard drive sysem LEWA inellidrive High-viscosiy fluids can only be pumped by inelligen sroke ravel conrol, especially during he sucion phase. handles his. v k b k Compression sroke b k () v k () Sucion sroke b k () = plunger acceleraion v k () = plunger velociy b s max. = maximum sucion sroke acceleraion v s max. = maximum sucion sroke velociy b s max. v s max. 5

6 For widely diverse applicaions: Mecharonic sysems in pracice Combining wo media in one pump: No problem wih. Valves on he sucion side of a pump head conrolled by can ranspor wo differen fluids. This involves conrolling he roaional angle o disribue he drive s sucion sroke according o he desired volumeric raio of he wo media. The valve for Fluid 1 opens a fron dead cener, and his fluid is sucioned ino he pump head. When a compued roaional angle is reached, he moor sops and he valves are swiched over. Now he pump sucions Fluid 2 ino he pump head. A he rear dead poin he valves close. The moor resars, and hen he pump pushes he fluid mixure ou. The advanage: The mixing raio can be adjused by drive conrol, and he combined volumeric flow rae can be adjused by roaional speed conrol. Valve 1 Valve 2 Fluid 1 Fluid 2 High-viscosiy media: LEWA inellidrive can handle differen sucion and compression sroke frequencies. When ransporing highly viscous media, high inle pressure losses ofen occur during sucion of he media ino he pump s working chamber. In convenionally operaed pumps, he ime for sucioning a sroke volume is equal o he ime for expelling i bu ideally he flow rae should be kep as small as possible during sucion. Previously, his problem was addressed by designing pumps wih large nominal sizes, i.e. large cross-secional flow areas and herefore slower flow raes. These pumps are ofen oversized, since hey were acually designed for pumping significanly larger maerial flows of normal viscosiy. The soluion: can handle differen sucion and compression sroke frequencies. The high viscosiy fluid can be sucioned slowly wih lile pressure loss hrough valves wih smaller nominal inside diameers and can hen be quickly expelled in he process compression sroke. Now high-viscosiy fluids or fluids wih high vapor pressure no longer require slow feed pumps wih oversized heads. A slower (low-loss) sucion sroke can be combined wih a fas compression sroke o achieve ime compensaion. The pump head can hen be kep as small as would be required o ranspor fluids similar o waer. Pumping high-viscosiy fluids Sucion sroke and compression sroke frequencies are differen Convenional drive sysem sucion = compression 1,098 1,096 Longer sucion sroke = longer compression sroke = larger pump head 1,093 1,091 LEWA inellidrive LEWA inellidrive sucion compression Pressure loss 1,088 1,086 1,083 1,081 1,078 Convenional drive sysem 1,076 1,073 0,0 0,261 0,522 0,783 1,044 1,305 1,565 1,826 2,087 2,348 2,609 [s] 6

7 Chromaography: Precision in low-pressure and high-pressure separaion. In chromaographic sysems, LEWA inellidrive can play ou all of is advanages simulaneously. For example, he combinaion speed variaion and parial sroke mode yields a maximum adjusmen range of over 1 : 150. While convenional echnology requires frequency converers and an elecric sroke adjuser, each of which mus be supplied wih separae power and daa connecions, jus requires one connecion. can even choose he opimal adjusmen mechanism. This enables gradien adjusmen over almos any value and wih high precision in ransporing he eluen. This can be done in boh low-pressure sysems wih he LEWA ecodos hygienic program and in HPLC wih ecoflow hygienic series pumps. When inelligen conrol of wo pumps is implemened, virually pulsaion-free operaion is possible. Phoo: raiopharm Cycle frequencies in harmony: synchronizes wih he filling machine. is perfecly suied for filling processes: The drive synchronizes iself wih he cycle frequency of he filling machine. Saring a dead cener, he sysem sucions he desired fill volume defined by he roaional angle of he moor. The moor hen sops and wais for a pulse from he filler. The pump hen expels he fill charge by reversing roaional direcion. The duraion of he sucion sroke can be adjused independenly of he duraion of he compression sroke. This means ha special properies of he medium or cerain fill sequences can be aken ino consideraion. Because he sysem is hermeically sealed, i is especially well suied o serile filling processes. When process parameers change: akes conrol for you. Do process parameers change frequenly in your producion process? Does maerial flow need o be adjused quickly and over a broad adjusmen range? Then can offer ideal performance. For example, in foaming plasics he foaming agen mus be uniformly reproducible and mus be meered according o he size of he par being produced ha is decisive for produc qualiy. Normally, hese sysems run wih closed-loop conrol where he higherlevel conroller ses a conrol parameer. The meering uni has o quickly CO 2 Fl compensae for possible changes in he producion process due o flucuaions in pressure and emperaure. Since componens of various sizes are produced in such sysems, a wide adjusmen range is required, which is ideally adjusable from he minimum o maximum feed rae wihou waiing imes. fulfills all of hese requiremens. 7

8 LEWA proven services and echnologies Germany / Headquarers LEWA GmbH Ulmer Sr Leonberg Phone Fax lewa@lewa.de Japan / Headquarers NIKKISO CO. LTD. Yebisu Garden Place Tower 22nd Floor 20-3, Ebisu 4-Chome, Shibuya-ku Tokyo Phone Fax Conacs of LEWA s numerous affiliaed companies and represenaives can be found on Cusomized soluions for meering and process echnology For more han 60 years, LEWA has se he echnical rends of meering pumps and sysems. LEWA offers a single-source soluion o handling complex meering and mixing asks ranging from individual pump configuraion, basic and deailed sysem engineering and preesing o onsie commissioning and mainenance services. Good causes o rely on: A soluion for your special applicaion: from process analysis o global service Highes process safey: individual pump configuraion and sae-of-he-ar design I nernaional engineering and projec compeencies Highes reliabiliy: developed for coninuous operaion Low lifeime coss: reduced energy consumpion and low-wear design Compliance wih inernaional sandards, e.g. API, ASME, GOST-R, FDA, EHEDG, TÜV Comprehensive reference lis Kompeenznez Verfahrensechnik Pro3 Areas of experise: Your local represenaive: Oil & Gas Gas Odorizaion Refinery Perochemicals Chemicals Plasics Cleaning & Deergens Personal Care Pharma & Bioechnology Food & Beverages Energy Uiliies Oher Indusries D6-500en Subjec o change wihou noice Layou and origin: Germany