Ivalve yolawulo lwepneumatic ubukhulu ivelufa yokulawula umoya ibuza njengevalve
Isikhokelo somkhono wevalve yokulawula ipneumatic, i-spool yoxinzelelo loxinzelelo, ilungele iimeko ezinkulu zokwahlukana koxinzelelo. Ukusebenzisa umsesane wokutywina endaweni yesitulo esiphezulu, umkhono wemveli wevalve yesihlalo ezibini kwisakhiwo sesihlalo somkhono esinye, olu phuculo ** luphucula inqanaba lokuvuza kwevalve yomkhono. Isigqubuthelo sevalve sitywinwe kabini ngemvulo kunye nokupakishwa, nto leyo esusa ngokusisiseko ukuvuza kwemidiya. Olu hlobo lwevalve yokulawula lufanelekile kulawulo olunetyhefu okanye oluxabisekileyo oluphakathi.
Ivalve yolawulo lwe-pneumatic yenziwe nge-actuator yefilimu ye-pneumatic, i-positioner, umzimba wevalve elawulayo, umzimba wevalvu une-spool kunye nesihlalo, kunye neempawu zokuvuza okuncinci. Amandla okungalingani kwevalve makhulu, uxinzelelo oluvumelekileyo oluhlukileyo luncinci kune-valve yezihlalo ezibini, kwintlupheko ephezulu yoxinzelelo, i-caliber enkulu, kungcono ukufanisa i-valve positioner. Idayamitha ye-Nominal ≥25mm ivalve yesakhiwo sesikhokelo esiphindwe kabini, ukuba nje utshintsho lwefilimu ye-pneumatic isihlalo sevalve yokulawula isikhondo kunye nendawo yokudibanisa i-spool inokufikelela kwigesi evulekileyo okanye igesi ivaliwe. Isihlalo esinye sefilimu ye-pneumatic yesitulo esilawulayo somzimba wevalvu sinespool kunye nesitulo, okoko nje indawo yoqhagamshelo lwesiqu sevalvu kunye nespool inokuguqulwa ukufikelela ekuvulekeni komoya okanye ukuvala umoya.
Ukulawula impazamo ye-valve positioner, kuyimfuneko ukugweba ngokuchanekileyo impazamo yekhonkco kunye necandelo le-valve positioner. I-actuator ye-pneumatic inikwe amandla yi-oyile engenawo umoya oxinanisiweyo wokuqhuba ivalve okanye isenzo se-baffle. Kukho ubukhulu becala ezi ntlobo zilandelayo: ivalve ye-pneumatic, ivalve ye-solenoid, isignali yombane ye-pneumatic long stroke actuator. Ivalve yolawulo lwepneumatic ivelufa yokulawula umoya nge-actuator yomoya kunye nevalve yokulawula iinxalenye ezimbini.
Kwinkqubo yobunjineli, enye okanye iimeko ezininzi zokungaphumeleli kwamandla, ukungaphumeleli kwegesi kunye nokungaphumeleli komqondiso kwenzeka xa i-valve yokulawula i-pneumatic ivula ngokuzenzekelayo i-valve, ivale i-valve okanye igcine isikhundla ngaphambi kokungaphumeleli kwe-valve - ukukhuselwa kwekhefu ezintathu ngokusekelwe kwimiba yokhuseleko lwenkqubo. Phakathi kwabo, ukuvala kunye nokuvula iivalve kunokufumaneka ngokulula ngokusebenzisa uxinzelelo lwe-cylinder kunye nokuphendula kwentwasahlobo kumzimba we-valve. Umsebenzi wokukhusela i-bit kwisithathu - ukukhuselwa kwekhefu kunzima ngakumbi ukuqonda, ngoko eli phepha lihlalutya kwaye lithelekisa iskimu sokukhuselwa kwe-bit kwiindidi ezimbini ezintathu - izixhobo zokukhusela ikhefu ezisetyenziselwa ubunjineli.
Ivalve yebhola isetyenziswe ngokubanzi, ivalve eneendlela ezintathu endaweni yevalve yesitulo esinye kwisistim () intsimbi yokutywina imfuno yentengiso yehlabathi yeoyile, ukukhula ngokukhawuleza kwerhasi yendalo, uphuhliso lonyawo luye lwahamba kuzo zonke iimbombo zomhlaba. , ukukhutshwa kwezixhobo kuye kwabeka iimfuno ezintsha. Yintoni umsebenzi we-pinghu pneumatic - i-valve ngoku ufuna kuphela ukwenza umbuzo olula kwi-Intanethi unokwazi iimpawu ezahlukeneyo zexabiso lezixhobo Sinokufumana abavelisi abahlukeneyo banikezela ngokukhawuleza ukuze sikwazi ukubiza ixabiso lezixhobo, ukuze sikwazi singacwangcisa ngcono kwaye siyazi imeko yezixhobo, sifuna ukuzisa indlela engcono yokuthenga.
I-valve yokulawula i-pneumatic i-gas ecinezelekileyo njengomthombo wamandla kwi-cylinder njenge-actuator, kwaye ngoncedo lwevalve, i-valve, i-valve ye-solenoid, i-valve, i-gas yokugcina, izihlungi zegesi, ezifana nezinamathiselo zokuqhuba i-valve, ukuqonda ubungakanani bokutshintsha. okanye ulungelelwaniso lohlobo lomlinganiselo, inkqubo yolawulo oluzenzekelayo kwimizi-mveliso ifumana umqondiso wolawulo ukugqibezela ukulungiswa kombhobho ophakathi: Ukuhamba, uxinzelelo, ubushushu, inqanaba lolwelo kunye nezinye iiparamitha zenkqubo. Ivalve yokulawula umoya ibonakaliswe ngolawulo olulula, impendulo ekhawulezayo, kunye nokhuseleko oluyimfuneko, ngaphandle kwemilinganiselo eyongezelelweyo yobungqina bokudubula. Ulwakhiwo lwemveliso: umgaqo wokusebenza kwevalve yolawulo lwepneumatic kunye nobubanzi besicelo
Ivalve yokulawula ipneumatic nayo kufuneka ibe nesixhobo sokufaka umqondiso, inokulungiswa ngokweemfuno zobushushu bokusebenza. Isixhobo esiphambili: indlela yokuhanjiswa kwemoto, isekethe yokubona, isixhobo sokupholisa, isixhobo sokuthambisa, isithinteli, njl.njl. Uyenza njani imvula kunye nekhephu kwimozulu yemozulu ngeentsuku zemvula, eyona ilula, eyona ngxaki iphambili kukunqanda ukuphuma kwamanzi amanzi nawomileyo, okwakwaziwa ngokuba “ iinwele ezimtyibilizi”. Umthetho uthi unokukuphepha ukutyibilika ngeentsuku zemvula. Kodwa uyila njani
Ivalve ye-NORGREN solenoid yenye yezona zixhobo zisetyenziswa kakhulu zokulawula inkqubo yoshishino kwi-petroleum, imichiza, amandla ombane, isinyithi kunye namanye amashishini oshishino. Ngokuqhelekileyo nge-actuator ye-pneumatic kunye nokulawula i-valve edibeneyo yokufakela kunye nokulungiswa kweempazamo emva kokubunjwa kwesixhobo esidibeneyo. Xa ufaka ivalve yokulawula ipneumatic, kufuneka sithathele ingqalelo le miba isixhenxe ilandelayo efuna ingqwalasela:
Ivalve yolawulo lwe-pneumatic ikakhulu yenziwe nge-actuator ye-pneumatic, i-valve yomzimba kunye nezixhobo. I-actuator inikwe amandla ngomoya ococekileyo ocinezelekileyo kwaye ifumana i-4 ~ 20 ma imiqondiso yombane okanye i-20 ~ 100KPa izibonakaliso zegesi ukuqhuba intshukumo yomzimba wevalve kunye nokutshintsha indawo yokuhamba phakathi kwesiseko sevalve kunye nesihlalo sevalve, ukuze kufezekiswe umsebenzi. yokulawula ukuhamba. Ukuze kuphuculwe umgca wevalve, woyise ukukhuhlana kwesikhondo sevalve kunye nefuthe elibangelwa kukutshintsha kwemeko ephakathi (iqondo lobushushu, uxinzelelo), ukusetyenziswa kwesimo sevalve kunye nokulawula ukuhambelana kwevalve, ukuze indawo yevalve ikwazi. Lungeniswa ngokumiswa kophawu lwesignali.
Ivalve yokuzivalela (ivalve egcina indawo), ivalve yokuzivalela sisixhobo sokugcina ivalve. Ivalve yokulawula i-pneumatic xa ukusilela komthombo wegesi yesixhobo inokunqumla umqondiso womthombo wegesi, ukuze umqondiso woxinzelelo lwegumbi le-membrane okanye i-cylinder igcinwe kwimeko yomzuzu ngaphambi kokusilela, ukuze indawo yevalve nayo igcinwe. kwindawo phambi kokusilela, dlala indima yokugcina indawo. I-valve position transmitter, xa umlawuli ekude negumbi lokulawula elingaphantsi kwendawo enokuqonda ngokuchanekileyo indawo yokutshintsha, iya kuxhotyiswa nge-valve position transmitter, i-valve yokuvula indlela yokufuduka, iguqulelwe kwisignali yombane kwigumbi lokulawula ngokutsho. Umgaqo othile, umqondiso unokubonakalisa umqondiso oqhubekayo wayo nayiphi na ivalve yokuvula, inokuqwalaselwa njengentshukumo ebuyela umva yevalve.
Ixesha lokuposa: May-20-2022
