Indima yevalve ye-pneumatic valve positioner i-pneumatic valve isetyenziswa ngokubanzi kushishino lweteknoloji yamandla ombane

Indima yevalve ye-pneumatic valve positioner Ivalve ye-pneumatic isetyenziswa ngokubanzi kushishino lweteknoloji yamandla ombane I-valve locator (ekwaziwa njenge: Ivalve ye-pneumatic locator) sesona sincedisi sevalvu yokulawula, idla ngokuba ne-Pneumatic Pneumatic control valve, yamkela isiginali ye-regulator output, kwaye emva koko ukuya kumqondiso wayo wemveliso yokulawula ivalve yokulawula i-Pneumatic, xa ivalve yolawulo, isiqu sevalve yengxelo yokufuduswa ngesixhobo somatshini ukuya kwindawo yevalvu, imeko yendawo yevalvu ngomqondiso wombane ukuya kwinkqubo ephezulu. Ulwakhiwo lwesimo sevalvu: Isibeki-ndawo sevalvu ngokwendlela yolwakhiwo kunye nomgaqo-siseko wokusebenza unokwahlulwa ngokwendawo yokubeka ivalve yomoya, indawo yokubeka ivalve yombane kunye nevalve yendawo ekrelekrele. I-valve positioner inokunyusa amandla okuphuma kwevalve elawulayo, inciphise i-lag yokuhanjiswa kwesignali elawulayo, ikhawulezise isantya sokuhamba kwesiqu sevalve, inokuphucula umgca wevalve, yoyise ukungqubana kwesiqu sevalve kwaye isuse impembelelo yevalve. amandla angalinganiyo, ukwenzela ukuba kuqinisekiswe ukubeka okuchanekileyo kwevalve elawulayo. I-valve positioner ADAPTS ezahlukeneyo Ii-actuator ezisetyenziswa ngokuqhelekileyo zohlulwe kwii-actuator ze-pneumatic, ii-activators zombane, i-stroke eqondileyo, i-Angle stroke. Isetyenziselwa ukuvula nokuvala zonke iintlobo zeevalvu kunye neepleyiti zomoya ngokuzenzekelayo kwaye ngesandla. Umthetho-siseko wokusebenza wevalve yokubeka ivalve Isiphawuli sevalve yeyona nto iphambili kwivalve 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. amaxesha okufuduswa kunye nomqondiso wesiphumo somlawuli phakathi kwembalelwano enye ukuya komnye. 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. Ukuhlelwa kweendawo zokubeka ivalve Isiphawuli sevalve sahlulwe ngokwendawo yokubeka ivalve yepneumatic kunye nevalve yendawo yombane 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. 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. I-valve positioner ehlakaniphile nge-CPU, inokusingatha imisebenzi efanelekileyo yobukrelekrele, umzekelo, inokuthwala imbuyekezo yeshaneli phambili engahambelaniyo, njl. njl., I-valve yendawo yombane ye-fieldbus nayo inokuziswa iivalvu ze-pneumatic zisetyenziswa ngokubanzi kushishino lweteknoloji yamandla ombane Landela ukukhawuleza kombane. Itekhnoloji ye-elektroniki ye-elektroniki kunye noshishino lwevalvu yolawulo oluzenzekelayo, kunye nophuhliso lwee-actuator zevalvu zombane nazo ziqhutywa inyathelo ngenyathelo, umzuzwana ngamnye kwiimveliso ezikrelekrele zibonakala ngokuthe ngcembe, ngelo xesha zonke izixhobo zolawulo lwangoku zizisa kudederhu lweevenkile. ngokuqinisekileyo iya kunceda, ikwafumene abahlobo abaninzi, ivalve ye-pneumatic Indlela yophuhliso ye-pneumatic valve actuator iye yaphucuka kancinane. I-microcomputer ye-chip enexabiso eliphantsi kunye ne-microprocessor yesaziso entsha iya kuthatha indawo yokulinganisa iinxalenye zegesi ye-elektroniki ukuze ibe yeyona yunithi yokulawula i-actuator yevalvu yombane, kwaye emva koko igqibezele inkqubo yolawulo lwedijithali. Landela ukukhawuleza kombane wetekhnoloji ye-elektroniki kunye noshishino lwevalvu yolawulo oluzenzekelayo, kunye nophuhliso lwezixhobo zevalvu zombane nazo ziqhutywa inyathelo ngenyathelo, umzuzwana ngamnye kwiimveliso ezikrelekrele nazo zivela ngokuthe ngcembe, ngelo xesha zonke izixhobo zolawulo lwangoku nazo. Ukuzisa kudederhu lweevenkile ngokuqinisekileyo kuya kunceda, kwakhona kufumene abahlobo abaninzi, ivalve ye-pneumatic Umzila wophuhliso lwe-actuator yevalufa yomoya uye waphucuka ngokuthe ngcembe. I-microcomputer ye-chip enexabiso eliphantsi kunye ne-microprocessor yesaziso entsha iya kuthatha indawo yokulinganisa iinxalenye zegesi ye-elektroniki ukuze ibe yeyona yunithi yokulawula i-actuator yevalvu yombane, kwaye emva koko igqibezele inkqubo yolawulo lwedijithali. Isiko kwisixhobo kunye neempawu ezivela ekusebenzeni kwemveliso yanamhlanje ekrelekrele eswele ekwandiseni lula kunye nokulula okudibeneyo ngexesha lokuqhuba, enyanisweni, uninzi lwezixhobo zevalvu ziya kuhlasela utshintsho olucacileyo, ngokuqinisekileyo ukucwangciswa kunye nokuchongwa kweparameter yemodeli ukusuka kulawulo oluphakathi. iya kuba * * kukuphucula ukusebenza kolawulo lwevalvu yombane. Ngokumalunga neevalvu ze-pneumatic kunye ne-hydraulic, i-wiring elula kunye nomsebenzi onamandla kwaye uqhubeke nokwandisa isikali sokusetyenziswa. Ngenxa yokuba i-valve ye-pneumatic kumnatha wombhobho ivame ukuvulwa kwaye ivalwe ngokungaqhelekanga, ukupakisha akugugi ukugcina umphumo wokutywina ixesha elide.