Funso la PSI lokwana 5,000 limabuka pafupifupi nthawi iliyonse yomwe ndimayendera ndi makasitomala aku Europe. Woyang'anira fakitale akufuna ndalama zochepa zamagetsi. Woyang'anira kukonza akufuna kusunga zomangamanga zomwe zilipo kale. CFO akufuna kuwerengera ndalama zobwezera. Wokhudzidwa aliyense amaika funsolo mosiyana, ndipo yankho limadalira deta yomwe nthawi zambiri siimawonekera bwino kuchokera kuzinthu zamakina zokha.

Nkhaniyi ikufotokoza zomwe ndaphunzira kuchokera ku mapulojekiti a VSD retrofit okhudza maselo opangira jekeseni, ma hydraulics a zida zamakina, ndi mapulogalamu ogwiritsira ntchito zida zoyendera. Ndondomekoyi imagwira ntchito ngati mukuyesaPampu ya vane ya T7-E yothamanga kwambirikukweza kapena kusankha chinthu chatsopanodongosolo la hydraulic la servo. Mulingo wa 5,000 PSI si wongoganizira chabe; umasonyeza momwe chuma cha VSD chimasinthira kuchoka pa kukakamiza kupita ku kucheperachepera.

Momwe Kusunga Mphamvu kwa VSD Kumagwirira Ntchito

Ukadaulo woyendetsa liwiro losinthasintha umachepetsa kugwiritsa ntchito mphamvu ya pampu pogwirizanitsa liwiro la injini ndi kufunikira kwa kuyenda. Mu dongosolo la pampu ya liwiro lokhazikika, pampu imapereka kuyenda kwathunthu nthawi iliyonse injini ikayenda, ndipo kuyenda kochulukirapo kumatayidwa pa valavu yochepetsera kupanikizika. Kuyenda kotayidwako kumayimira zinyalala zenizeni: mota imatenga mphamvu zonse kuti ikanikize mafuta omwe nthawi yomweyo amakhala kutentha.

Kwa ogula omwe akuwunikaMapampu a mndandanda wa VKuphatikiza pa nsanja za T6/T7, njira yowerengera ndalama zosungira mphamvu imagwiranso ntchito mofanana m'mabanja onse awiri.

VSD imachotsa kutaya kwa zinyalala mwa kuchepetsa mphamvu ya injini pamene kufunikira kwa madzi kutsika. Pampuyo imapereka zomwe makinawo amafunikira, ndipo valavu yothandiza imakhala yotsekedwa kwambiri. Ubale pakati pa liwiro la injini ndi kugwiritsa ntchito mphamvu ndi pafupifupi kiyubiki, zomwe zikutanthauza kuti kuchepetsa liwiro ndi 20 peresenti kumachepetsa mphamvu ndi pafupifupi 50 peresenti.

Kwa ogula omwe akuyang'ana kusintha kwa liwiro losinthasintha, muyeso wofunikira ndi mbiri ya ntchito ya kukhazikitsa kwenikweni, osati ndalama zosungira zomwe zimaganiziridwa. Pampu yomwe imagwira ntchito pa 80 peresenti ya mphamvu yovotera kwa maola 16 patsiku ndipo imagwira ntchito kwa maola 8 idzawona ndalama zosiyana ndi pampu yomwe imagwira ntchito pa 95 peresenti ya mphamvu yovotera mosalekeza. Chochitika choyamba chimapereka kubweza kwakukulu. Chachiwiri sichitero.

Chigawo cha 5,000 PSI ndi Chifukwa Chake Chili Chofunika

Chiŵerengero cha 5,000 PSI (350 bar) chikupitirira kuwonekera mu maphunziro a VSD retrofit feasibility chifukwa chili pamalo olowera mphamvu ya pump efficiency curve. Pansi pa kupanikizika kumeneku, mapampu a vane othamanga kwambiri amapereka mphamvu yoyenera ngakhale akamabwerera m'mbuyo kudzera mu valavu yopumulira. Pamwamba pa kupsinjika kumeneku, kutayika kwa volumetric ndi makina kumawonjezeka, ndipo mphamvu yotayika imakhala gawo lalikulu la mphamvu yolowera.

Mwachizolowezi, maselo ambiri opangira jakisoni amagwira ntchito pansi pa 5,000 PSI nthawi yayitali ya nthawi yonseyi. Gawo la kuthamanga kwambiri limachitika panthawi yomangirira ndi kulowetsa nkhungu, zomwe pamodzi zitha kuyimira 20 mpaka 35 peresenti ya nthawi yonseyi. 65 mpaka 80 peresenti yotsalayo ndi gawo loziziritsa, lopaka pulasitiki, ndi lotulutsa, lomwe limagwira ntchito pa 800 mpaka 1,800 PSI. VSD pa nthawiyi yogwira ntchito imapereka ndalama zambiri chifukwa pampu imagwiritsa ntchito nthawi yake yambiri pa kuthamanga kochepa.

Chithunzi cha zachuma chimasintha pa ntchito zopanikizika kwambiri monga kuponya miyala, kupondaponda, ndi ntchito zina zosindikizira za hydraulic. Machitidwewa amatha kugwira ntchito pa 4,000 mpaka 5,000 PSI mosalekeza, zomwe zimapangitsa kuti VSD ikhale yocheperako. Pampu imayenda pafupi ndi malo ake ogwirira ntchito mosasamala kanthu za VSD, kotero magetsi amawonjezera mtengo popanda phindu lofanana.

Mafotokozedwe a Vane Pump Ogwirizana ndi VSD

Si mapompo onse a vane omwe amagwira ntchito ya VSD. Kuthamanga kochepa komwe kumafunikira kwambiri. Mapompo a vane amafunikira liwiro lokwanira lozungulira kuti atambasule ma vane motsutsana ndi mphete ya kamera pogwiritsa ntchito mphamvu ya centrifugal. Pansi pa izi, ma vane satambasuka mokwanira, kutuluka kwamkati kumawonjezeka, ndipo kuwonongeka kumawonjezeka kwambiri.

Mafotokozedwe onse a T7-E akupezeka mumalo otsitsira zinthu zaukadaulo, kuphatikizapo ma curve oyesedwa bwino pa liwiro logwira ntchito.

Mndandanda wa T7-E womwe timalimbikitsa pa ntchito za VSD wayesedwa kuti ugwire ntchito mosalekeza pakati pa 200 ndi 1,800 RPM. Mtundu uwu umalola kuchepetsa liwiro kwambiri pa nthawi yochepa yofunikira pamene ukupitirizabe kusunga umphumphu wa vane. Kugwira ntchito pansi pa 200 RPM n'kotheka mwaukadaulo kwa nthawi yochepa koma kumathandizira kuwonongeka ndipo sikuvomerezeka pa ntchito yosalekeza.

Mafotokozedwe a injini ndi ofunika mofanana ndi mafotokozedwe a pampu. Ma mota odziwika bwino olowetsa mphamvu sanapangidwe kuti agwirizane ndi ma voltage spikes ndi harmonic content opangidwa ndi ma variable frequency drives wamba. Ma mota osinthira mphamvu okhala ndi inverter insulation yolimbikitsidwa, kukwera kwa kutentha kochepa, komanso nthawi zambiri fan yoziziritsira yosiyana amafunika kuti ntchito yodalirika ya VSD igwire ntchito. Kugwiritsa ntchito mota wamba pa mphamvu ya VSD ndi gwero lofala la kulephera kwa injini msanga.

Pamene VSD Siikusunga Mphamvu

Mbiri ya kupanikizika kokha sikuti imatsimikizira zachuma za VSD. Zinthu zina zitatu zitha kusintha pulojekiti ya VSD yokongola kukhala yopindulitsa kwambiri.

Choyamba, kutayika kwa magetsi a injini ndi ma drive kumawonjezera ndalama zomwe zimasungidwa pa pampu. Ma frequency drive osinthasintha nthawi zambiri amagwira ntchito bwino ndi 95 mpaka 98 peresenti, ndipo ma inverter-duty motors amawonjezera kutayika kwa 2 mpaka 5 peresenti poyerekeza ndi ma standard motors. Kutayika kwa magetsi kumeneku kukawonjezeredwa ku phindu la mphamvu ya pampu, kusintha kwa makina onse kumachepa. Pa ma pampu ang'onoang'ono kwambiri, mphamvu yamagetsi imatha kupitirira ndalama zomwe pampu imasunga.

Chachiwiri, mapulogalamu okhala ndi ma transients othamanga mofulumira amalepheretsa VSD optimation. Ngati kuthamanga kwa dongosolo kusinthasintha pakati pa 500 ndi 4,500 PSI masekondi angapo aliwonse, driveyo singathe kuyankha mwachangu mokwanira kuti iwonjezere liwiro pa gawo lililonse. Pampuyo imatha kugwira ntchito pa liwiro loyandikira kwambiri kuti igwire ma transients peaks, zomwe zimalepheretsa mphamvu zambiri zomwe zingasungidwe.

Chachitatu, VSD pamakina omwe alibe kasamalidwe koyenera ka kutentha imatha kubweretsa zotsatira zoyipa kuposa magwiridwe antchito okhazikika. Ma mota othamanga mosiyanasiyana amapanga kutentha kwambiri pa liwiro lotsika chifukwa cha mpweya wozizira wochepa. Ngati motayo sinayesedwe kuti igwire ntchito kapena ngati kukhazikitsako kulibe kuziziritsa kowonjezera, kutentha kwa injini kumakwera ndipo nthawi yogwira ntchito ya injini imafupika kwambiri.

Kusankha Ukadaulo Wabwino wa VSD ndi Kuzindikira Katundu

Ma hydraulic ozindikira kukweza mphamvu amapereka ndalama zofanana ndi za VSD kudzera mu njira ina. M'malo mosinthasintha liwiro la pampu, kuzindikira kukweza mphamvu kumasinthasintha kusuntha kwa pampu kuti kugwirizane ndi kufunikira kwa kupanikizika. Kutulutsa kwa pampu kumasintha mosalekeza kutengera momwe dongosolo limayankhira kupanikizika, ndi ngodya yowongolera kayendedwe ka pampu.

Kuzindikira load kumayankha mwachangu kuposa VSD ku ma pressure transients, zomwe zimapangitsa kuti ikhale yoyenera kugwiritsa ntchito ndi kusintha kwachangu kwa kufunikira. Kusinthaku ndi kovuta: mapampu ozindikira load amafuna ma compensators, ma control valve, ndi ma feedback line omwe amawonjezera ndalama ndipo amafunikira kukonza kwapamwamba kwambiri. VSD imagwiritsa ntchito mapampu okhazikika osinthika, omwe amafewetsa hydraulic circuit pamtengo wotsika kwambiri kuposa zomangamanga zamagetsi zovuta.

Pa kapangidwe ka makina atsopano, nthawi zambiri kusankha kumadalira zomangamanga zomwe zilipo kale komanso luso la ogwiritsa ntchito. Zomera zomwe zili ndi mphamvu zosamalira magetsi komanso zomwe zimakonda zida zodziwika bwino za hydraulic zimakonda VSD. Zomera zomwe zili ndi luso la hydraulic komanso zomangamanga zomwe zilipo kale zowunikira mphamvu zamagetsi zimakonda kuzindikira mphamvu zamagetsi pamakina atsopano. Kukonzanso ukadaulo umodzi kukhala makina opangidwira ena sikumveka bwino kwenikweni.

Mndandanda Wotsatira wa VSD pa Vane Pump Systems

Kwa ogula omwe ali okonzeka kuwunika VSD pa malo omwe alipo kale oyikapo vane pump, mndandanda wotsatirawu wa masitepe asanu ndi limodzi umaletsa zolakwika zomwe ndaziwona muutumiki wakumunda.

Zolemba zamakampani mongaEuropean Federation of Materials Handlingperekani malangizo owonjezera pa kuphatikiza kwa VSD ndi mayunitsi amphamvu a hydraulic m'malo opangira mafakitale.

Choyamba, lembani mbiri yeniyeni ya kayendedwe ka ntchito kwa milungu iwiri kapena kuposerapo yopangidwa. Lembani mphamvu yotulutsa pampu, kufunika kwa kayendedwe ka madzi, ndi mphamvu ya injini pakapita sekondi imodzi. Deta yomwe ikubwera imayendetsa kuwerengera ndalama zosungira mphamvu ndikutsimikizira ngati kayendedwe ka ntchito kamathandizira zachuma za VSD.

Chachiwiri, onetsetsani kuti pampu yaikidwa chizindikiro cha liwiro losinthasintha mkati mwa liwiro lomwe lakonzedwa. Ma T7-E ndi nsanja zamakono zambiri zopopera za vane zimayikidwa chizindikiro moyenerera, koma mapampu akale sangakhale otero. Kugwiritsa ntchito pampu yopanda chizindikiro pansi pa liwiro losinthasintha kumapangitsa kuti pakhale kuwonongeka mwachangu komanso kulephera msanga.

Chachitatu, tchulani mota yosinthira magetsi yokhala ndi inverter yokhala ndi insulation ya kalasi F kapena yapamwamba komanso 1.15 service factor kapena kupitirira apo. Ma mota wamba adzalephera kugwira ntchito mkati mwa miyezi 12 mpaka 24 pansi pa ntchito ya VSD. Mtengo wokonzanso injini uyenera kuphatikizidwa mu kuwerengera kwa VSD payback.

Chachinayi, konzani drive ndi ma profiles a liwiro lofanana ndi pampu. Liwiro locheperako liyenera kukhazikitsidwa osachepera 300 RPM kuti pakhale kulimba kwa vane extension. Ma ramp othamanga ndi ochepetsa liwiro ayenera kukhazikitsidwa pa masekondi 5 mpaka 10 kuti apewe kugwedezeka kwa hydraulic. Ma frequency odumpha omwe amachititsa kuti ma mechanical resonances ayambe kugwiritsidwa ntchito ayenera kukonzedwa.

Chachisanu, ikani ma transducer opanikizika okhala ndi nthawi yoyenera yoyankhira. Ma transmitter okhazikika a mafakitale okhala ndi nthawi yoyankhira ya ma millisecond 100 ndi okwanira pa ntchito zambiri za VSD. Ma transmitter oyankha mwachangu (ma millisecond 10) amafunika pamakina amphamvu kwambiri koma amawonjezera mtengo.

Chachisanu ndi chimodzi, konzekerani kuchepetsa mphamvu zamagetsi. Ma frequency drive osinthasintha amapangitsa kuti mphamvu zamagetsi zisokonezeke zomwe zingakhudze zida zina zamagetsi zomwezo. Ma line reactors kapena ma harmonic filters nthawi zambiri amafunika kuti atsatire miyezo ya IEEE 519, ndipo mtengo wake uyenera kuphatikizidwa mu bajeti ya polojekiti ya VSD.

Chitsanzo Chowerengera Kusunga Mphamvu

Selo yodziwika bwino yopangira jekeseni yomwe imagwira ntchito ziwiri imapereka chidziwitso chothandiza pakuwerengera ndalama zosungira mphamvu za VSD. Pampu yokhazikika imagwira ntchito pa mphamvu yovomerezeka ya 15 kW, ndipo injini imagwira ntchito mosalekeza. Mphamvu yomwe imagwiritsidwa ntchito nthawi zonse, zomwe zimapangitsa kuti valavu yochepetsera kutayika panthawi ya kupanikizika kochepa, ndi pafupifupi 9.5 kW.

Kuwonjezera VSD ndi liwiro loyenera kumachepetsa kugwiritsa ntchito mphamvu pafupifupi 5.8 kW. Kusunga mphamvu kumafika pa 3.7 kW mosalekeza, kapena pafupifupi 31,000 kWh pachaka pa maola 8,400 ogwirira ntchito. Pa mlingo wamagetsi wa mafakitale wa USD 0.10 pa kWh, ndalama zomwe zimasungidwa pachaka zimakhala pafupifupi USD 3,100.

Mtengo wa makina a VSD, kuphatikizapo drive, inverter-duty motor, installation labor, ndi harmonic filters, nthawi zambiri umakhala pakati pa USD 6,000 ndi USD 9,000 pa retrofit ya 15 kW. Chifukwa chake, nthawi yobwezera ndalama ndi miyezi 24 mpaka 36, ​​kutengera momwe makina amakhazikitsira komanso mitengo yamagetsi am'deralo. Ntchito zosinthira katatu zimadula malipiro ndi theka, ndipo ntchito zosinthira kamodzi zimawonjezera ndi 50 mpaka 100 peresenti.

Ma VSD pa Ma Vane Pumps Mosiyana ndi Servo Hydraulic Systems

Machitidwe a hydraulic a Servo, omwe amaphatikiza pampu, mota, drive, ndi zida zamagetsi zowongolera mu phukusi limodzi, akuyimira njira ina yapamwamba kwambiri m'malo mwa VSD pa pampu wamba ya vane. Machitidwe a servo amapereka yankho mwachangu, kulondola kwambiri, komanso kusunga mphamvu mofanana ndi kapena kuposa VSD, koma pamtengo wokwera kwambiri.

Pa ntchito zomwe zimafuna kulamulira bwino kuthamanga ndi kuyenda kwa madzi, monga kupanga jekeseni wapamwamba wokhala ndi njira yotsekeka, machitidwe a servo hydraulic ndi chisankho choyenera. Kusunga mphamvu nthawi zambiri kumaposa VSD ndi maperesenti 5 mpaka 15 chifukwa machitidwe a servo amawongolera liwiro ndi kusuntha nthawi imodzi.

Pa ntchito zomwe zomangamanga za vane pump zomwe zilipo zikugwira ntchito bwino ndipo cholinga chake ndi kuchepetsa ndalama zamagetsi, VSD retrofit nthawi zambiri imakhala njira yotsika mtengo kwambiri. Mtengo wa ndalama ndi wotsika ndi 40 mpaka 60 peresenti poyerekeza ndi makina onse a servo hydraulic, ndipo ndalama zomwe zimasungidwa zimapeza zambiri zomwe zikupezeka pakukonza bwino ntchito.

Mikhalidwe Isanu Yogwirira Ntchito Pamene VSD Yalephera

Kudzera mu ma retrofit a VSD omwe ndawunikira, zolephera zimagawika m'ma pattern asanu obwerezabwereza. Kumvetsetsa ma pattern awa pasadakhale kumateteza makasitomala kuti asagwiritse ntchito njira yomwe sidzapereka ndalama zomwe zayembekezeredwa. Pattern iliyonse imatha kudziwika ndi sabata imodzi kapena ziwiri zosonkhanitsa deta, zomwe zimakhala zotsika mtengo kwambiri kuposa kupeza vutoli zida za VSD zitayikidwa.

Miyezo yogwiritsira ntchito mphamvu moyenera ya VSD yalembedwa muMuyezo wa kasamalidwe ka mphamvu wa ISO 50001, zomwe zimapereka njira yowerengera ndi kutsimikizira zopempha zosungidwa.

Chitsanzo choyamba: kugwira ntchito molimbika kwambiri nthawi zonse. Ma cell oponyera ma die ndi makina osindikizira a hydraulic okhala ndi matani ambiri nthawi zambiri amagwira ntchito yoposa 4,000 PSI pa 80 peresenti kapena kuposerapo ya nthawi yogwirira ntchito. Pampuyi imayenda pafupi ndi malo ake ogwirira ntchito nthawi zonse, zomwe zimapangitsa kuti VSD ikhale yocheperako. Kuwonjezera VSD ku makina otere nthawi zambiri kumapereka ndalama zosungira mphamvu za digito imodzi, zomwe sizikutanthauza kuti ndalamazo ziyenera kusungidwa.

Chitsanzo chachiwiri: kuthamanga kwachangu kwamagetsi. Ntchito zoponda ndi ntchito zina zoyesera zimasinthasintha kuthamanga kwamagetsi kuchoka pa idle kufika pa maximum mu sekondi imodzi. Choyendetsa cha liwiro losinthasintha sichingayankhe mwachangu mokwanira kuti chiwongolere liwiro la mphindi iliyonse, kotero motayo imagwira ntchito pa liwiro loyandikira kwambiri. Kusunga mphamvu kumatha ndipo zamagetsi zoyendetsera zimawonjezera kutayika kwamagetsi.

Chitsanzo chachitatu: nthawi yayitali yopanda ntchito. Kugwiritsa ntchito komwe pampu imayima kwa maola ambiri popanda kufunika kwakukulu kwa madzi kumawonetsa kuti mphamvu imagwiritsidwa ntchito pang'ono. Kuwonjezera VSD kumachepetsa mphamvu yopanda ntchito pochepetsa injini, koma ndalama zomwe zimasungidwa zimakhala zochepa chifukwa mphamvu yoyambira imakhala yotsika kale. Nthawi yobwezera imapitirira nthawi ya zida.

Chitsanzo chachinayi: malo oipitsidwa kwambiri. Malo opangira zinthu, migodi, ndi mafakitale ena opangira mankhwala amaika makina a hydraulic pamlingo woipitsidwa womwe umaposa kulekerera kwa pompo ya vane. Kugwira ntchito kwa VSD pa liwiro lochepa kumawonjezera kutuluka kwa madzi mkati ndipo kumathandizira kuwonongeka m'malo oipitsidwa. Kuchepetsa moyo wa cartridge nthawi zambiri kumalepheretsa kusunga mphamvu.

Chitsanzo chachisanu: nsanja zakale za mapampu. Mapangidwe a mapampu a vane asanafike chaka cha 2000 sanayesedwe kuti agwire ntchito mosinthasintha. Ma rating ocheperako a liwiro, malo otseguka a vane, ndi mawonekedwe a bearing adaganiza kuti ndi ntchito yokhazikika. Kuwonjezera VSD ku mapampu akale awa kumathandizira kuwonongeka ndikuchepetsa nthawi yogwira ntchito, ngakhale pamene mbiri ya ntchitoyo ikadathandizira chuma cha VSD.

Kupitirira Mphamvu: Ubwino Wachiwiri wa VSD

Kusunga mphamvu ndiye phindu lalikulu la VSD, koma phindu lachiwiri nthawi zambiri limafunikira kwambiri kwa ogwira ntchito m'mafakitale kuposa bilu yamagetsi. Mapindu atatu achiwiri nthawi zonse amapezeka mu zokambirana ndi makasitomala a Vicks Hydraulic pambuyo pokhazikitsa.

Ogula omwe akuwunika khalidwe la gawo la VSD akhoza kunena zaMiyezo ya ISO hydraulic systemza njira zoyesera magwiridwe antchito ndi njira zoyezera magwiridwe antchito zomwe zavoteledwa.

Ubwino woyamba womwe ndikufuna kuunika ndi kuchepetsa phokoso. Mapampu othamanga kwambiri omwe amayenda movutikira amatulutsa phokoso lalikulu lomwe limadutsa mu dongosolo la hydraulic ndi kapangidwe ka nyumbayo. VSD imachedwetsa injini panthawi yomwe ikufunika kwambiri, kuchepetsa phokoso ndi 5 mpaka 15 dB pamalo oyezera. M'malo opangira zinthu omwe amakhudzidwa ndi phokoso monga zipinda zoyera kapena mizere yolongedza, kuchepetsa kumeneku nthawi zambiri kumatsimikizira ndalama za VSD popanda kusunga mphamvu.

Chachiwiri ndi kuchepetsa kutentha. Mphamvu zomwe zimasungidwa popewa kupondereza ma valve sizimatha; zimatsalira mu mafuta ngati kutentha. Kuchepa kwa kutentha kumatanthauza zoziziritsira zazing'ono, kuchepa kwa madzi ozizira, komanso kuchepa kwa mafuta pang'onopang'ono. Kusunga ndalama pokonza nthawi yosintha mafuta ndi kukonza zoziziritsira nthawi zambiri kumawonjezera phindu lina la 10 mpaka 15 peresenti ku VSD yonse kupatula ndalama zomwe zimasungidwa mwachindunji pamagetsi.

Phindu lachitatu lomwe ndimayang'ana kwambiri ndikuwongolera bwino njira. VSD imalola kufananiza bwino kayendedwe ka madzi ndi kufunika kwa njira, zomwe zimapangitsa kuti nthawi yozungulira igwirizane bwino mu jekeseni wopangira madzi komanso kuchepetsa kusiyana kwa magawo. Pa ntchito zopanga madzi zomwe zimayang'ana kulekerera kwa magawo ochepa, kusintha kwa khalidwe kuchokera ku ma profiles oyenda nthawi zonse nthawi zambiri kumapereka phindu lalikulu kuposa ndalama zomwe zimasungidwa pamagetsi okha.

Mtengo Wonse wa Umwini: Mawonedwe a Zaka Zisanu

Ndondomeko yothandiza yowunikira VSD imayang'ana mtengo wonse wa zaka zisanu wa umwini osati nthawi yobwezera mphamvu yokha. Mawonedwe a zaka zisanu akuwonetsa ndalama zokonzera, nthawi yogwiritsira ntchito injini ndi kuyendetsa, ndi zabwino zilizonse zopangira zomwe sizili kunja kwa kuwerengera kwa magetsi mwachindunji.

Kwa ogula poyerekeza njira zamagalimoto ndi zoyendetsa,Kabukhu ka pampu ya Eaton vaneikuphatikizapo zinthu zofotokozera za ma inverter-duty motor specifications ndi zofunikira zochepetsera ma harmonic.

Pa retrofit ya 15 kW injection molding cell, chithunzi cha zaka zisanu nthawi zambiri chimaphatikizapo: Zipangizo za VSD ndi kukhazikitsa pa USD 8,000, kukweza mota pa USD 1,500, zomangamanga zamagetsi pa USD 2,000, harmonic retivation pa USD 1,200, ndalama zonse zogwiritsidwa ntchito pa USD 12,700. Kusunga mphamvu pa USD 3,100 pachaka kwa zaka zisanu zonse ndi USD 15,500. Kusunga ndalama pokonza mafuta ndi ntchito yoziziritsira kumawonjezera USD 1,800 ina pazaka zisanu. Kukweza mtengo wa khalidwe kumakhala kovuta kuwerengera koma nthawi zambiri kumawonjezera USD 2,000 mpaka USD 5,000 pachaka kuti pakhale molding yolekerera kwambiri.

Phindu la zaka zisanu pankhaniyi limayambira pa USD 7,000 mpaka USD 30,000, kutengera kuwerengera kwa ubwino. Kubweza ndalama zokha kumatenga miyezi 24 mpaka 36, ​​koma phindu lonse la zachuma m'zaka zisanu ndi kuwirikiza kawiri kapena katatu mtengo wa ndalama. Ichi ndichifukwa chake VSD imakonzanso ntchito ziwiri ndi zitatu zojambulira jakisoni nthawi zambiri zimakhala zoyenera ngati nthawi yogwirira ntchito ikuthandizira.

Mapeto: Yankho Loona la VSD

Ndapeza kuti funso la 5,000 PSI lilibe yankho limodzi lomwe limagwira ntchito pa kukhazikitsa kulikonse komwe ndimawunikira. Malinga ndi zomwe ndakumana nazo, yankho loona mtima ndikusonkhanitsa deta ya ntchito, kuwerengera ndalama zenizeni zosungira mphamvu, ndikuyerekeza ndalama zomwe zasungidwa ndi mtengo wamakina oyendetsa ndi kukonzanso kwa injini ndi zomangamanga koyenera. Nthawi zonse ndimauza makasitomala kuti kuwerengera kuyenera kuphatikizapo kusintha kwa injini, zomangamanga zamagetsi, ndi ndalama zochepetsera zovuta kuti ndikhale woona mtima za nthawi yobwezera. Ndingakonde kusiya ntchito yomwe siili ndi phindu m'zachuma kusiyana ndi kukhazikitsa zida zomwe sizikupereka ndalama zomwe zatsala.

Pa ntchito ziwiri ndi zitatu zopangira jekeseni zomwe zikuyenda bwino kwambiri kuposa momwe zimayembekezeredwa, VSD imapereka phindu lomveka bwino pazachuma. Pa ntchito za single shift kapena ntchito zopitilira muyeso, ndalama za VSD zimakhala zovuta kuzimvetsa ndipo sizingabwezeretsedwe. Malo apakati amadalira mitengo yamagetsi yakomweko, momwe pampu yomwe ilipo ikuyendera bwino, komanso kulekerera kwa wogwiritsa ntchito mapulojekiti akuluakulu omwe amabweza ndalama zambiri kwa zaka zambiri.

Kwa ogula omwe ali okonzeka kuchita kusanthula pa kukhazikitsa kwina, gulu lathu la mainjiniya likhoza kuwonanso deta ya ntchito ndikupereka kuwunika koyenera kwa VSD. Tumizani zolemba za kuthamanga ndi kuyenda kwa madzi zomwe zajambulidwa kudzera mutsamba lolumikiziranandipo tidzawerengera poyerekeza ndi mitengo ya VSD yomwe ilipo komanso mitengo yamagetsi yamafakitale. Kuwunikaku nthawi zambiri kumatenga masiku angapo ndipo kumapatsa ogula deta yomwe amafunikira kuti apange chisankho chodziwitsa bwino za ndalama zomwe angagwiritse ntchito.

Mafotokozedwe aukadaulo ndi malangizo osankhidwira mapampu ndi machitidwe a servo omwe atchulidwa m'nkhaniyi akupezeka munkhaniyi.malo otsitsiraKwa ogula omwe akuyerekeza kukonzanso kwa VSD ndi kusintha kwathunthu kwa makina a servo hydraulic, malo otsitsira amaphatikizaponso deta yofananiza ndi maphunziro a zitsanzo za ntchito.