I-Siemens ekrelekrele yevalve yendawo yombane yokulungisa impazamo kunye nohlalutyo lwempazamo eqhelekileyo yomgaqo-siseko wokusebenza wentshayelelo

I-Siemens ekrelekrele yevalve yendawo yombane yokulungisa impazamo kunye nohlalutyo lwempazamo eqhelekileyo yomgaqo-siseko wokusebenza wentshayelelo

Kweli phepha, umgaqo wokulawula i-valve kunye ne-Siemens SIPART PS2 i-valve ye-valve ehlakaniphile yokubeka indawo yombane, amanyathelo endlela yokulungisa ingxaki, uhlalutyo oluqhelekileyo kunye neendlela zonyango ziyaziswa kwaye zihlalutywe ngokweenkcukacha. 1 isishwankathelo
I-Siemens SIPART PS2 ekrelekrele ivalve yokubeka ivalvu yombane (emva koku kubhekiselwa kuyo njengesikhundla), ngenxa yojongano olulula lomatshini wencoko yababini, inokuqhutywa kwindawo ngezitshixo ezikwindawo yokubeka kunye nescreen seLCD, isiphawuli siphawulwa ngegesi ephantsi kakhulu. ukusetyenziswa, ukwakhiwa kwemenyu, kulula ukuyigcina, ukusebenza okuthembekileyo, kulula ukuyiqonda, Impembelelo yokusetyenziswa ilungile, isetyenziswe kwishishini lepetroleum kunye nepetrochemical kulo lonke ilizwe.
Idityaniswe nomsebenzi wobunjineli, eli phepha lishwankathela ulungiso lweempazamo kwi-locator ekrelekrele kunye neempazamo eziqhelekileyo kwinkqubo yokulungiswa kweempazamo.
2 IiNdlela eziSisiseko zokuLungisa iiNdawo zeeNdawo 2.1 Iphaneli yokuSebenza
Phambi kokulungisa ingxaki kwindawo ekhoyo, kufuneka uqale wazi ipaneli yokusebenza kwindawo yendawo (Umfanekiso 1). A liqhosha “lesandla esincinci” liqhosha lemowudi, cofa kwaye ubambe kangangemizuzu emi-5 ukungena kumda wokusetwa kwendawo; B yeyokunyuswa kwebhondi; C liqhosha lokunciphisa.
Umzobo 1 Siemens SIPART PS2 isitshixo sedayagram yesitshixo sevalvu yombane ekrelekrele
2.2 Izicwangciso zeParameter
Xa useta iiparamitha, cofa iqhosha lemowudi yokusebenza kuqala kwaye ulibambe imizuzwana emi-5 ukuze ufake ujongano lweparameter. Cinezela iqhosha lemowudi yokusebenza kanye ngalo lonke ixesha ukungena kwimenyu yolungiselelo olulandelayo lweparamitha. Ukuba ufuna ukutshintsha ixabiso elithile lesicwangciso separameter, cofa iqhosha eliphezulu okanye elisezantsi iqhosha lokucwangcisa.
Iiparamitha eziqhelekileyo zemenyu yendawo yokukhangela zimi ngolu hlobo lulandelayo:
Into ethi "1.YFCT" umsebenzi we-angular stroke, ukhetho oluchanekileyo lwe-stroke, cofa ukwakha okanye ukwakha phantsi ukuze ukhethe. Ukujika sisibetho se-engular kwaye iNdlela sisibetho esithe ngqo. Into yesibini ethi "2.YAGL" yinkqubo yendlela yokuhamba ye-actuator. Kukho iinketho ezimbini kuphela kwesi silungiselelo: 33 ° kunye ne-90 °. Ukuba i-actuator ine-stroke ye-angular, imiselwe kwi-90 ° kwaye ukuba i-actuator ine-stroke echanekileyo, imiselwe kwi-33 °. Into yesithathu "3.YWAY" isethingi yoluhlu lohambo. 90 ° xa i-stroke i-20 mm; Xa i-stroke ingaphantsi kwe-20 mm, khetha i-33 °. 4.INITA Ukuqinisekiswa okuzenzekelayo. Xa utsheki oluzenzekelayo lufuneka, cofa kwaye ubambe iqhosha elithi "+" imizuzwana emi-5 ukuze uzihlole; Ukuzivavanya okuqhelekileyo kuqulethwe ngamanyathelo angama-7, oku: isinyathelo sokuqala kunye nesinyathelo sesibini sokumisela ulwalathiso lwentshukumo (RUN 1); Isinyathelo sesi-3 khangela ukufuduka kwaye ulungelelanise i-zero kunye noluhlu (RUN 2); Inyathelo lesi-4 Ukumisela kunye nexesha lokwenene lokubeka (RUN 3); Inyathelo lesi-5 limisela ** uluhlu oluncinci (RUN4); Inyathelo lesi-6 Lungiselela ukusabela okwethutyana (RUN 5); Inyathelo lesi-7 Ukuphela kokuzivavanya (FINSH). Into yesihlanu 5.INITM ayikhuthazwa ukuqinisekiswa ngesandla. Inqaku lesi-6 "6.SCUR" ISETHA I-valve IXESHA LOKUSEBENZA. I-0 m A yi-0 ukuya kwi-20 m A, i-4 m A yi-4 ukuya kwi-20 m A. Into yesixhenxe "7.SDIR" ibeka ulwalathiso lwexabiso. Ngokutsho kwe-4 ~ 20 mA ye-valve ye-signal movement setting, i-reaction ikhetha ukuwa, isenzo esilungileyo sikhetha ukunyuka. Into yeshumi "10.TSUP" ixabiso lokumisela lithambekele ekuphakameni, khetha i-auto. Inqaku le-12 "12.SFCT" inqaku lokumisela umsebenzi. Khetha i-Lin ye-stroke ngokuthe ngqo kunye ne-N1-50 ye-angular stroke (iimpawu zendalo). Into ye-38 "38.YDIR" ibonisa kunye nengxelo yendawo ulwalathiso lweenguqu ezilawulwayo. Ulungiselelo lwendlela yohambo (indawo yevalvu yengxelo eboniswa sisilungisi) :kuwa phantsi; Vuka. I-39.YCLS ivalwe ngokuqinileyo ngeenguqu ezilawulwayo. Umba 50 "50.PRST" ukusetha kwakhona. Ukuba i Izicwangciso zezi parameters zingentla azichanekanga ngexesha lolungiso, ungacofa kwaye ubambe iqhosha lokudibanisa (+) phantsi kwesi simo. Xa i-LCD ibonisa "OCAY", ukusetha kwakhona kuphumelele.
3 Iimpazamo eziqhelekileyo kunye neendlela zokusombulula ingxaki
Uhlobo: ukuba i-positioner exhaust ivuliwe, ngoko igalelo kunye nombhobho wokuphuma unokudibaniswa ngasemva.
Okwesibini: ukuba i-valve inyuka, ibhalansi ayinakufunyanwa, kukho into evuzayo, indawo yokunyuka kwevalve ingaphezulu kwe-90% yesiphumo sokuvuza kombhobho we-locator womoya obangelwayo.
Okwesithathu: ukuba i-4 ~ 20 m Umqondiso ofunyenwe ngumgcini-ndawo awuhambelani nolwalathiso lwangempela lwesenzo sevalve yentsimi, emva koko uhlengahlengise izinto ze-7 kunye ne-38 yeparameter Izicwangciso kwimenyu ngokulandelelana, de kube igumbi lokulawula kunye negumbi lokulawula. intsimi iyahambelana.
(3) Ukuba ivalve ayinakugqitha kwinyathelo lokuqala okanye elesibini nelesithathu inyathelo alinako ukudlula ngamaxesha athile, kusenokwenzeka ukuba kukho ingxaki ngentonga yengxelo yevalve. I-Screw ye-feedback rod ayiqinanga okanye isikrufu asikho kwi-sliding groove ye-feedback rod. Ngeli xesha, kufuneka sifumane intonga yempendulo kwindawo efanelekileyo kwaye siqinise i-screw, kwaye ukuzivavanya kufuneka kukwazi ukuqhubeka ngokuqhelekileyo.
Umzobo 2 Siemens SIPART PS2 ekrelekrele yombane valve positioner ivili idiagram
(4) Kwezinye iimeko, xa ummandla ofileyo udibana nayo, i-pulley inokuphinda ihanjiswe kwinkqubo yokuvavanya i-locator ukuze idlule.
4 isiphelo
Ukutyhubela iminyaka yethu emininzi ye-Siemens SIPART PS2 indawo yokucoca ivalve yombane ekrelekrele kunye nenkqubo yokulungisa iingxaki ezahlukeneyo ekuhlangatyenwe nazo kuhlalutyo kunye nesishwankathelo, zishwankathele ezi ndlela zenkqubo yokulungisa iimpazamo kunye namava okuphatha iimpazamo. Kuyathenjwa ukuba inkqubo yokulungisa ingxaki kunye nendlela yokusombulula ingxaki ekhankanywe kweli phepha inokuba nexabiso elithile lesalathiso kunye nomsebenzi wesixhobo soontanga okanye abasebenzi bokulungisa ingxaki.
Umgaqo wokusebenza wevalvu yendawo yazisa ivalve positioner, ngokobume bendawo yevalve yepneumatic, ivalve positioner yombane kunye nevalve positioner ekrelekrele, yeyona nto iphambili yokulawula ivalve, ihlala inevalve yolawulo lwepneumatic, iyayamkela umqondiso wokuphuma komlawuli, kwaye emva koko kumqondiso wayo wemveliso yokulawula ivalve yokulawula umoya, xa isenzo somlawuli, Ukufuduka kwesikhondo sevalve kuhanjiswa emva kwi-valve positioner ngesixhobo somatshini, kwaye indawo yevalve idluliselwa kwinkqubo ephezulu ngomqondiso wombane.
Ngokolwakhiwo lwevalve yepneumatic, indawo yevalve, indawo yombane yevalve kunye nesikhundla sevalvu ekrelekrele, yeyona nto iphambili yokulawula ivalve, ihlala inevalve yokulawula umoya, iyakwamkela umqondiso wokuphuma komlawuli, kwaye emva koko kwimveliso yayo yokulawula ulawulo lwepneumatic. ivelufa, xa umlawuli, ukufuduswa kwesiqu kunye noomatshini ngengxelo kwi-valve positioner, Indawo yevalvu igqithiselwa kwinkqubo ephezulu ngophawu lombane.
Isibonisi sevalvu ngokwendlela yolwakhiwo kunye nomgaqo-siseko wokusebenza unokwahlulwa ngokwendawo yokubeka ivalve yomoya, indawo yokubeka ivalve yombane kunye nevalve enengqondo.
I-valve positioner inokunyusa amandla okuphuma kwevalve elawulayo, inciphise i-lag yokuhanjiswa kwesignali elawulayo eyenzekayo, ikhawulezise isantya sokuhamba kwe-valve stem, inokuphucula umgca wevalve, yoyise ukukhuhlana kwe-valve stem kunye nokuphelisa impembelelo. amandla angalinganiyo, ukwenzela ukuba kuqinisekiswe indawo echanekileyo yevalve elawulayo.
Ulwahlulo lwesimo sevalvu:
Ngokubanzi isenokwahlulwa ngokwendawo yokubeka ivalve yepneumatic, ivalve yendawo yombane kunye nesibekeli-valve esikrelekrele.
Isibonisi sevalve sahlulwe ngokwendawo yevalve yepneumatic, ivalve yendawo yombane kunye nevalve yendawo ekrelekrele ngokwesiginali yegalelo. Isignali yegalelo ye-pneumatic valve positioner yisignali yegesi eqhelekileyo, umzekelo, i-20 ~ 100kPa isignali yegesi, isignali yayo yokuphuma ikwangumqondiso oqhelekileyo wegesi. Isiginali yegalelo yesikhundla sevalvu yombane ngumgangatho wangoku okanye isiginali yombane, umzekelo, 4 ~ 20mA isiginali yangoku okanye i-1 ~ 5V isiginali yombane, njl.njl., isiginali yombane iguqulwa ibe ngamandla ombane ngaphakathi kwendawo yokubeka ivalve yombane, emva koko. umqondiso wegesi ophumayo kwivalve yolawulo lokuguqula. Ubukrelekrele bevalve yendawo yombane iya kulawula imveliso yegumbi umqondiso wangoku kwi-drive elawula umqondiso wegesi yevalve, ngokungqinelana ne-valve stem friction xa usebenza, i-offset medium fluctuation kunye namandla angalungelelananga, ukuze ukuvulwa kwevalve kuhambelana negumbi lokulawula imveliso yangoku yomqondiso. Kwaye iiparamitha ezihambelanayo zingasetwa ngokucwangciswa okuhlakaniphile ukuphucula ukusebenza kwevalve yokulawula.
Isihleli sevalve yepneumatic:
Imodeli yosetyenziso inxulumene nesihleli sevalvu eguqula imiqondiso yombane ibe ziimpawu zoxinzelelo kwaye ilawule ukuvuleka kwesivalo ngomoya ocinezelweyo okanye initrogen njengomthombo womoya osebenzayo.
2. Isibonisi sevalvu yombane:
Umqondiso wangoku we-DC onikwe yinkqubo yokulawula uguqulwa ube ngumqondiso wegesi oqhuba ivalve yokulawula ukulawula isenzo sevalve elawulayo. Kwangaxeshanye ngokokuvulwa kwengxelo yevalve, ukuze indawo yevalvu ibekwe ngokuchanekileyo ngokwenkqubo yokulawula umqondiso wemveliso.
3. Isiphawuli sevalvu ekrelekrele:
Imodeli esetyenziswayo inxulumene ne-valve positioner engadingi ukulungiswa ngesandla, iyakwazi ukubona ngokuzenzekelayo i-zero, uluhlu olupheleleyo kunye ne-friction coefficient yevalve elawulayo, kunye nokuseta ngokuzenzekelayo iiparamitha zokulawula.
Ngokwesalathiso sentshukumo inokwahlulwa ibe yindlela enye yevalvu yokubeka indawo kunye neendawo ezimbini zevalvu.
Ivalve yendlela enye isetyenziswa kwi actuator yepiston, ivalve positioner isebenza kwicala elinye, ivalve yendlela ezimbini isebenza kumacala omabini esilinda yepiston actuator, kumacala amabini.
Ngokwesiphumo sendawo yevalve kunye nesimboli yegalelo lokuzuza isignali yahlulwe yaba yivalve yendawo encumisayo kunye nevalve yokusabela. Njengoko umqondiso wegalelo kwi-positive-acting valve positioner inyuka, isignali yokuphuma nayo iyanda, ngoko inzuzo ilungile. Isignali yegalelo ye-Reaction valve positioner iyanda, isignali yokuphuma iyancipha, ngoko ke, inzuzo ayilunganga.
Ngokwe-valve positioner igalelo isignali ye-analog okanye isignali yedijithali, inokohlulwa ibe yivalve eqhelekileyo yendawo kunye ne-bus field yombane yevalve positioner. Umqondiso wegalelo welocator yevalvu eqhelekileyo luxinzelelo lwe-analog okanye yangoku, isignali yombane, isignali yegalelo ye-fieldbus yombane we-valve locator luphawu lwedijithali lwe-fieldbus.
Ngokubhekiselele ekubeni ngaba isibonisi sevalvu sinayo i-CPU, inokohlulwa ngokwendawo eqhelekileyo yevalvu yombane kunye nesibekeli-valve sombane esikrelekrele. Izimiseli zevalvu zombane eziqhelekileyo azinayo i-CPU, ke ngoko, azinabukrelekrele, azikwazi ukusingatha imisebenzi efanelekileyo yobukrelekrele. Ubukrelekrele bokubeka ivalve yombane nge-CPU, inokujongana nokusebenza ngobukrelekrele, umzekelo, inokuthwala imbuyekezo yeshaneli engahambelaniyo, njl.
Umgaqo-siseko wokusebenza we-valve positioner:
I-valve positioner inokunyusa amandla okuphuma kwevalve elawulayo, inciphise i-lag yokuhanjiswa kwesignali elawulayo eyenzekayo, ikhawulezise isantya sokuhamba kwe-valve stem, inokuphucula umgca wevalve, yoyise ukukhuhlana kwe-valve stem kunye nokuphelisa impembelelo. amandla angalinganiyo, ukwenzela ukuba kuqinisekiswe indawo echanekileyo yevalve elawulayo.
Umgaqo wokusebenza wevalvu yendawo
Isiphawuli sevalve yeyona nto iphambili yevalve yokulawula. Ithatha i-valve stem displacement yesiginali njengophawu lokulinganisa impendulo yegalelo, ithatha isiginali yemveliso yesilawuli njengophawu lokumisela, ithelekisa, xa ezi zimbini zinenxaxhi, itshintsha isiginali yayo yokuphuma kwi-actuator, yenza isenzo se-actuator, iseka isiqu sevalve. ukufuduswa kunye nomqondiso wesiphumo somlawuli phakathi kwembalelwano enye ukuya kwelinye. Ngoko ke, i-valve positioner iqulethe inkqubo yokulawula impendulo kunye ne-stem displacement njengomqondiso wokulinganisa kunye nokukhutshwa komlawuli njengophawu lokumisela. Ulawulo oluguquguqukayo lwenkqubo yolawulo luphawu oluphumayo lwendawo yevalve kwi-actuator.