I-Siemens ehlakaniphile ye-valve yokubeka indawo kagesi yokulungisa iphutha kanye nesingeniso somgomo wokusebenza we-valve yokuhlaziya iphutha elivamile

I-Siemens ehlakaniphile ye-valve yokubeka indawo kagesi yokulungisa iphutha kanye nesingeniso somgomo wokusebenza we-valve yokuhlaziya iphutha elivamile

Kuleli phepha, isimiso sokulawula i-valve kanye ne-Siemens SIPART PS2 ehlakaniphile yokubeka i-valve kagesi, izinyathelo zendlela yokulungisa iphutha, ukuhlaziya amaphutha avamile nezindlela zokwelashwa kwethulwa futhi kuhlaziywe ngokuningiliziwe. 1 ukubuka konke
I-Siemens SIPART PS2 i-valve positioner kagesi ehlakaniphile (eyaziwa lapha njenge-positioner), ngenxa yesixhumi esibonakalayo esilula sengxoxo yomshini womuntu, singasetshenzwa esizeni ngokhiye basesibukweni kanye nesikrini se-LCD, isibonisi sibonakala ngegesi ephansi kakhulu. ukusetshenziswa, ukwakheka kwemenyu, kulula ukuyigcina, ukusebenza okuthembekile, kulula ukuyiqonda, Umphumela wokusetshenziswa muhle, usetshenziswe embonini ye-petroleum ne-petrochemical ezweni lonke.
Kuhlanganiswe nomkhuba wobunjiniyela, leli phepha lifingqa ukulungisa amaphutha kwendawo ehlakaniphile kanye namaphutha avamile enqubweni yokususa iphutha.
2 Izindlela Eziyisisekelo Zokulungisa Iphutha Zezindawo 2.1 Iphaneli Yokusebenza
Ngaphambi kokususa iphutha endaweni, kufanele uqale ubone iphaneli yokusebenza endaweni (Umfanekiso 1). A ukhiye othi “isandla esincane” ukhiye wemodi, cindezela bese ubamba imizuzwana emi-5 ukuze ufake umngcele wesethingi yendawo; I-B ingeyebhondi ekhulayo; U-C ukhiye wokunciphisa.
Umfanekiso 1 Siemens SIPART PS2 umdwebo wokhiye we-valve kagesi ohlakaniphile
2.2 Izilungiselelo zepharamitha
Uma usetha amapharamitha, cindezela ukhiye wemodi yokusebenza kuqala bese uyibamba imizuzwana emi-5 ukuze ufake isixhumi esibonakalayo sokusetha ipharamitha. Cindezela ukhiye wemodi yokusebenza kanye ngaso sonke isikhathi ukuze ufake imenyu yesilungiselelo esilandelayo sepharamitha. Uma ufuna ukushintsha inani elithile lokusetha lepharamitha, cindezela inkinobho ethi phezulu noma phansi ukuze uhlele.
Amapharamitha ajwayelekile emenyu yendawo ami kanje:
Umsebenzi wento ethi “1.YFCT” wokushaywa kwe-angular, ukukhetha ukushaywa okuqondile, chofoza ukuze wakhe noma wakhe phansi ukuze ukhethe. Ukuphenduka yi-angular stroke kanti i-Way yi-stroke eqondile. Into yesibili ethi "2.YAGL" iwukusetha imodi yokuhamba ye-actuator. Kunezinketho ezimbili kuphela zalesi silungiselelo: 33° kanye no-90°. Uma i-actuator ine-stroke eyi-angular, isethelwe ku-90 ° futhi uma i-actuator ine-stroke eqondile, isethelwe ku-33 °. Into yesithathu "3.YWAY" ukulungiselelwa ibanga lohambo. 90 ° lapho unhlangothi 20 mm; Uma i-stroke ingaphansi kuka-20 mm, khetha u-33°. 4.INITA Ukuqinisekisa okuzenzakalelayo. Uma kudingeka ukuhlola okuzenzakalelayo, cindezela bese ubamba inkinobho ethi “+” imizuzwana emi-5 ukuze uzihlole; Ukuzihlola okuvamile kuqukethe izinyathelo ezingu-7, okuyizi: isinyathelo sokuqala kanye nesinyathelo sesibili sokunquma isiqondiso sokunyakaza (RUN 1); Isinyathelo sesi-3 hlola ukufuduka bese ulungisa i-zero nobubanzi (RUN 2); Isinyathelo sesi-4 Thola kanye nesikhathi sokuma esingokoqobo (RUN 3); Isinyathelo sesi-5 nquma ** ibanga elincane (RUN4); Isinyathelo sesi-6 Lungiselela ukusabela kwesikhashana (RUN 5); Isinyathelo 7 Ukuphela Kokuzihlola (FINSH). Into yesihlanu ethi 5.INITM ayinconyelwe ukuqinisekiswa mathupha. Into 6 "6.SCUR" ISETHA UBUHLU LWAMANJE IVALI. I-0 m A ingu-0 kuya ku-20 m A, 4 m A iyi-4 kuya ku-20 m A. Into yesikhombisa "7.SDIR" ibeka isiqondiso senani. Ngokusho kwe-4 ~ 20 mA isilungiselelo sesiqondiso sokunyakaza kwe-valve yesignali, ukusabela ukukhetha ukuwa, isenzo esihle sikhetha ukuphakama. Inani lesethi yento yeshumi ethi “10.TSUP” ithambekele ekukhuphukeni, khetha okuzenzakalelayo. Into 12 "12.SFCT" setha umsebenzi wephoyinti. Khetha i-Lin ye-stroke eqondile kanye ne-N1-50 ye-angular stroke (izici zemvelo). Into engu-38 “38.YDIR” ibonisa nempendulo yendawo isiqondiso sokuguquguquka okulawulwayo. Isethingi yendlela yohambo (indawo yevalvu yempendulo ekhonjiswa yisithameli) :wela phansi; sukuma. 39.YCLS ivalwe ngokuqinile ngokuguquguquka okulawulwayo. Ukusetha kabusha kwento engu-50 “50.PRST”. Uma Izilungiselelo zamapharamitha angenhla zingalungile ngesikhathi sokulungisa iphutha, ungacindezela futhi ubambe inkinobho ethi Faka (+) ngaphansi kwalesi simo. Lapho i-LCD ibonisa “OCAY”, ukusetha kabusha kuba yimpumelelo.
3 Amaphutha ajwayelekile kanye nezindlela zokuxazulula inkinga
Uhlobo: uma i-positioner exhaust ikhishiwe, khona-ke ipayipi lokufaka nelokukhiphayo lingaxhunywa ngokuhlehla.
Okwesibili: uma ukuqhuma kwe-valve, ibhalansi ingase ingatholakali, kukhona into yokuvuza, indawo yokuqhuma kwe-valve ingaphezu kuka-90% yokuvuza kwepayipi lomthombo womoya ophumayo.
Okwesithathu: uma i-4 ~ 20 m isignali etholwe ngumuntu obeka indawo ingahambisani nesiqondiso sangempela sesenzo se-valve yasendle, bese ulungisa izinto ezingu-7 nezingu-38 zepharamitha Izilungiselelo kumenyu ngokulandelana, kuze kube igumbi lokulawula kanye inkambu iyahambisana.
(3) Uma i-valve ingakwazi ukuhamba ngesinyathelo sokuqala noma izinyathelo zesibili nezesithathu zingakwazi ukudlula ngezikhathi ezithile, kungenzeka ukuthi kunenkinga ngenduku yempendulo ye-valve. Isikulufu se-feedback rod asiqinile noma isikulufu asikho ku-groove eslayidayo yenduku yempendulo. Ngalesi sikhathi, sidinga ukuthola induku yempendulo endaweni efanele futhi siqinise isikulufu, futhi ukuzihlola kufanele kukwazi ukuqhubeka ngokujwayelekile.
Umfanekiso 2 Siemens SIPART PS2 umdwebo wesikhundla sesondo sevalvu kagesi ehlakaniphile
(4) Kwezinye izimo, lapho indawo efile ihlangatshezwana nayo, i-pulley ingaphinde ihanjiswe kunqubo yokuzihlola yendawo yendawo ukuze idlule.
4 isiphetho
Eminyakeni yethu eminingi ye-Siemens SIPART PS2 isayithi lokulungisa iphutha le-valve kagesi ehlakaniphile kanye nenqubo yokulungisa iphutha yezinkinga ezihlukahlukene okuhlangatshezwane nazo ekuhlaziyeni nasekufinyeni, kufingqe lezi zindlela zenqubo yokususa amaphutha nolwazi lokuphatha amaphutha. Kwethenjwa ukuthi inqubo yokususa iphutha kanye nendlela yokuxazulula inkinga eshiwo kuleli phepha ingaba nenani elithile eliyireferensi kanye nomsebenzi wontanga bethuluzi noma abasebenzi abalungisa iphutha.
Isimiso sokusebenza se-valve positioner yethulwa indawo yokubeka i-valve, ngokusho kwesakhiwo se-valve positioner womoya, i-valve positioner kagesi kanye ne-valve positioner ehlakaniphile, iyizesekeli eziyinhloko zamavalvu okulawula, ngokuvamile ane-valve yokulawula umoya, yamukela isignali ephumayo yesilawuli, bese kuba isignali yayo ephumayo yokulawula i-valve yokulawula umoya, lapho isenzo somlawuli, Ukugudluzwa kwesiqu se-valve kubuyiselwa endaweni yokubeka i-valve ngomshini womshini, futhi indawo yevalvu idluliselwa ohlelweni olungaphezulu ngesignali kagesi.
Ngokusho kwesakhiwo nge-pneumatic valve positioner, i-valve positioner, i-valve positioner kagesi kanye ne-valve positioner ehlakaniphile, iyisisetshenziswa esikhulu sevalvu yokulawula, ngokuvamile ene-valve yokulawula umoya, yamukela isignali ephumayo yesilawuli, bese kuba isignali yayo yokuphumayo ukulawula isilawuli somoya. i-valve, lapho isilawuli, ukugudluzwa kwesiqu kanye nemishini ngempendulo ku-valve positioner, Indawo yevalvu idluliselwa ohlelweni olungaphezulu ngesignali kagesi.
I-valve positioner ngokuya ngesakhiwo sayo kanye nomgomo wokusebenza ingahlukaniswa ibe indawo yevalvu yomoya, i-valve positioner kagesi kanye ne-valve positioner ehlakaniphile.
I-valve positioner ingakhuphula amandla okukhipha i-valve elawulayo, inciphise ukugogeka kokudluliselwa kwesiginali elawulayo eyenzekayo, isheshise isivinini sokunyakaza kwesiqu se-valve, ingathuthukisa umugqa we-valve, inqobe ukungqubuzana kwesiqu se-valve futhi isuse ithonya. amandla angalingani, ukuze kuqinisekiswe ukuma okuyikho kwe-valve elawulayo.
Ukuhlukaniswa kwesimo se-valve:
Ngokujwayelekile zingahlukaniswa zibe indawo yokubeka i-valve yomoya, i-valve positioner kagesi kanye ne-intelligent valve positioner.
I-valve positioner ihlukaniswe yaba i-pneumatic valve positioner, i-valve positioner kagesi kanye ne-valve positioner ehlakaniphile ngokusho kwesignali yokufaka. Isignali yokufaka ye-pneumatic valve positioner iyisignali evamile yegesi, isibonelo, isignali yegesi engu-20~100kPa, isignali yayo yokuphumayo iphinde ibe isignali yegesi evamile. Isignali yokufaka ye-valve positioner kagesi iyisignali evamile yamanje noma ye-voltage, isibonelo, isignali yamanje engu-4~20mA noma isignali ye-voltage engu-1~5V, njll., isignali kagesi iguqulelwa amandla kazibuthe kagesi ngaphakathi kwendawo yokubeka i-valve kagesi, bese emva kwalokho. isignali yegesi ephumayo ku-valve yokulawula yokuguqula. I-valve yokubeka indawo kagesi ehlakaniphile izolawula isignali yamanje yegumbi eliphumayo kusiginali yegesi ye-valve elawula idrayivu, ngokuya ngokungqubuzana kwesiqu se-valve lapho isebenza, isuse ukushintshashintsha kwengcindezi emaphakathi namandla angalinganiseli, ukuze ukuvulwa kwe-valve kuhambisane nesiginali yamanje yokuphuma kwegumbi lokulawula. Futhi imingcele ehambisanayo ingasethwa ngokucushwa okuhlakaniphile ukuze kuthuthukiswe ukusebenza kwe-valve yokulawula.
I-valve ye-pneumatic positioner:
Imodeli yokusetshenziswayo ihlobene nendawo yokubeka i-valve eguqula amasignali kagesi abe amasignali okucindezela futhi ilawule ukuvulwa kwevalvu ngomoya ocindezelwe noma i-nitrogen njengomthombo womoya osebenzayo.
2. Isibonisi sevalvu kagesi:
Isignali yamanje ye-DC enikezwe uhlelo lokulawula iguqulwa ibe isignali yegesi eshayela i-valve elawulayo ukulawula isenzo se-valve elawulayo. Ngesikhathi esifanayo ngokusho kokuvulwa kwempendulo ye-valve, ukuze indawo ye-valve ibekwe ngendlela efanele ngokusho kwesignali yokulawula okukhipha uhlelo.
3. Isihleli se-valve esihlakaniphile:
Imodeli yokusetshenziswayo ihlobene nendawo yokubeka i-valve engadingi ukulungiswa ngesandla, ingakwazi ukubona ngokuzenzakalelayo uziro, ububanzi obugcwele kanye ne-coefficient yokungqubuzana kwe-valve elawulayo, futhi isethe ngokuzenzakalelayo imingcele yokulawula.
Ngokusho isiqondiso isenzo zingahlukaniswa ngendlela eyodwa valve positioner kanye ezimbili indlela valve positioner.
I-valve yendlela eyodwa isetshenziswa ku-actuator ye-piston, indawo yokubeka i-valve isebenza ohlangothini olulodwa kuphela, i-valve positioner yezindlela ezimbili isebenza nhlangothi zombili zesilinda se-piston actuator, ezinhlangothini ezimbili.
Ngokomphumela we-valve positioner kanye nophawu lokuzuza isignali yokufaka ihlukaniswe yaba yi-positive valve positioner kanye ne-reaction valve positioner. Njengoba isignali yokufaka ku-positive-acting valve positioner ikhula, isignali yokuphumayo nayo iyanda, ngakho ukuzuza kuba kuhle. Isignali yokufaka ye-Reaction valve positioner iyanda, isignali yokuphumayo iyancipha, ngakho-ke, inzuzo ayilungile.
Ngokwesiginali yokufaka i-valve positioner iyisiginali ye-analogi noma isignali yedijithali, ingahlukaniswa ngokwendawo yevalvu evamile kanye nesibeka endaweni ye-valve kagesi yebhasi. Isignali yokufaka yendawo ye-valve evamile ingcindezi ye-analog noma yamanje, isignali kagesi, isignali yokufaka ye-fieldbus Electric valve locator iyisignali yedijithali ye-fieldbus.
Ngokuya ngokuthi indawo yokubeka i-valve inayo i-CPU, ingahlukaniswa ngokwejwayelekile indawo yevalvu kagesi kanye ne-valve kagesi ehlakaniphile yokubeka indawo. Izibonisi ezivamile zamavalvu kagesi azinayo i-CPU, ngakho-ke, azinawo ubuhlakani, azikwazi ukusingatha imisebenzi ehlakaniphile efanelekile. I-Intelligent Electric valve positioner nge-CPU, ingabhekana nokusebenza okuhlakaniphile, isibonelo, ingathwala isinxephezelo esingaqondile sesiteshi, njll., isibonisi sevalvu kagesi ye-fieldbus singakwazi futhi ukuthatha u-P>
Umgomo wokusebenza we-valve positioner:
I-valve positioner ingakhuphula amandla okukhipha i-valve elawulayo, inciphise ukugogeka kokudluliselwa kwesiginali elawulayo eyenzekayo, isheshise isivinini sokunyakaza kwesiqu se-valve, ingathuthukisa umugqa we-valve, inqobe ukungqubuzana kwesiqu se-valve futhi isuse ithonya. amandla angalingani, ukuze kuqinisekiswe ukuma okuyikho kwe-valve elawulayo.
Umgomo wokusebenza we-valve positioner
I-valve positioner iyisesekeli esiyinhloko se-valve yokulawula. Ithatha isignali ye-valve stem displacement njengesignali yokulinganisa impendulo yokufaka, ithatha isilawuli esiphumayo sesilawuli njengesignali yokusetha, iqhathanise, lapho okubili kunokuchezuka, iguqule isignali yayo yokuphumayo ku-actuator, yenza isenzo se-actuator, isungula isiqu se-valve. ukususwa kanye nesiginali yokuphumayo yesilawuli phakathi kokuxhumana okukodwa kuya koyedwa. Ngakho-ke, i-valve positioner iqukethe isistimu yokulawula impendulo ene-stem displacement njengesignali yokulinganisa kanye nokuphumayo kwesilawuli njengesignali yokusetha. I-variable variable yesistimu yokulawula iyisiginali yokuphuma kwesimo se-valve ku-actuator.