Ukuxazulula inkinga ye-valve positioner output shock Ukuhlukaniswa kwesimo se-valve esivamile kanye nomgomo

Ukuxazulula inkinga ye-valve positioner okukhipha umfutho we-pressure shock Ukuhlelwa kanye nomthetho kwesimo se-valve esivamile Hlola ukuzulazula kwengcindezi yokuphuma kwe-valve positioner Ngokusakazwa kwe-automation yezimboni, njengoba indawo yokulawula i-valve yokulawula iphinde igqamise indima ebalulekile. I-Positioner iyithuluzi elithola amasignali kagesi ohlelweni lokulawula bese liwaguqula libe amasignali egesi ukuze lilawule ukuma kwevalvu. Ukunemba kokulawula kwe-valve elawulayo, ngaphandle kwezici zokuklama komzimba we-valve, kuncike ngokuphelele ekunembeni kokulawula kwesimo. Khona-ke sivame ukuhlangana nesenzakalo sokuzulazula kwengcindezi yokuphuma kwe-locator ohlelweni lokusebenzisa indawo. Indlela yokuxazulula inkinga imi kanje: 1, okokuqala, i-valve kanye nezingxenye zokuxhuma ze-positioner azifakiwe noma ngabe zikhululekile, indawo yokufaka ilungile. 2. Uma kuyi-positioner engumshini, kufanele futhi kuqashelwe ukuthi i-valve yokunciphisa ingcindezi iyahambisana yini nesibekayo. 3, bheka ukuthi ingabe ikhona yini imishini kagesi enamandla amakhulu nxazonke, susa ukuphazamiseka kwe-electromagnetic. 4. Susa ukuvuza kwepayipi elixhumayo lomthombo womoya ngamunye. 5. Uma kuyi-actuator yefilimu edlalayo eyodwa, bheka ukuthi ukuqina kwentwasahlobo kwe-actuator kuyahambisana yini nendawo. 6, ungafaki ukuthi i-actuator inomoya wesilinda, noma ukuvuza kwesilinda. 7. Ungafaki isikhulisi sendawo noma isisindo somoya wevalvu ye-piezoelectric noma ngabe kukhona ukungcola. 8, susa ukungqubuzana kwe-valve kukhulu kakhulu futhi indawo yokubeka ayifani nesimo. Ukuhlukaniswa kwe-valve evamile kanye nokubeka i-valve okuyisisekelo ngokwesakhiwo: Isihleli se-valve yomoya, indawo yokubeka i-valve kagesi kanye ne-valve positioner ehlakaniphile, iyisekeli eliyinhloko levalvu yokulawula, ngokuvamile ene-valve yokulawula umoya, yamukela isignali ephumayo yesilawuli, bese ifinyelela ekuphumeni kwayo. isignali yokulawula i-valve yokulawula umoya, lapho i-valve yokulawula, isiqu se-valve yempendulo yokugudluka endaweni ye-valve futhi ngokusebenzisa idivayisi engumshini, Indawo yevalvu idluliselwa ohlelweni olungaphezulu ngesignali kagesi. I-Valve Positioner (I-Valve Positioner) I-valve positioner ngokwesakhiwo: I-valve positioner, i-valve positioner kagesi kanye ne-valve positioner ehlakaniphile, iyisesekeli esiyinhloko sevalvu yokulawula, ngokuvamile ene-valve yokulawula umoya, yamukela isignali ephumayo yesilawuli, bese kuba isignali yayo ephumayo. ukuze ulawule i-valve yokulawula umoya, lapho i-valve yokulawula, isiqu se-valve yempendulo yokugudluzwa kusihleli se-valve nangomshini womshini, Indawo yevalvu idluliselwa ohlelweni olungaphezulu ngesignali kagesi. (1) Isakhiwo se-Valve positioner ngokuya ngesakhiwo saso kanye nesimiso sokusebenza singahlukaniswa sibe indawo yokumisa i-valve yomoya, indawo yokubeka i-valve kagesi ne-valve 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. (2) isigaba sendawo yoku-1, indawo yokubeka i-valve ihlukaniswe yaba yindawo yokumisa i-valve yomoya, i-valve positioner kagesi kanye ne-valve positioner ehlakaniphile ngokwesiginali yokufaka. (1) Isignali yokufaka ye-pneumatic valve positioner iyisignali evamile yegesi, isibonelo, isignali yegesi engu-20~100kPa, isignali yayo yokuphumayo iphinde ibe isignali yegesi evamile. (2) Isignali yokufaka yesikhundla sevalvu kagesi iyisignali evamile yamanje noma i-voltage, isibonelo, isignali yamanje engu-4~20mA noma isignali ye-voltage engu-1~5V, njll., isignali kagesi iguqulelwa amandla kazibuthe kagesi ngaphakathi kwendawo yokubeka ivalvu kagesi. , bese kuba isignali yegesi ephumayo ku-valve yokulawula yokuguqula. (3) umshini wokumisa i-valve kagesi ohlakaniphile uzolawula isignali yamanje yegumbi okukhiphayo kusignali yegesi ye-valve elawula idrayivu, ngokuya ngokungqubuzana kwesiqu se-valve lapho isebenza, ukuguquguquka okuphakathi nendawo namandla angalingani, ukuze ukuvulwa kwe-valve kuhambisane negumbi lokulawula. isignali yamanje ephumayo. Futhi imingcele ehambisanayo ingasethwa ngokucushwa okuhlakaniphile ukuze kuthuthukiswe ukusebenza kwe-valve yokulawula. 2, 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. 3, ngokuya ngokuphuma kwe-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. I-4, ngokusho kwesignali yokufaka i-valve positioner iyisiginali ye-analog noma isignali yedijithali, ingahlukaniswa ibe yi-valve positioner evamile kanye ne-field bus electronic valve positioner. Isignali yokufaka yendawo ye-valve evamile ingcindezi ye-analog noma yamanje, isignali kagesi, isignali yokufaka ye-fieldbus Electric valve locator iyisignali yedijithali ye-fieldbus. 5, ngokuya ngokuthi i-valve positioner ene-CPU ingahlukaniswa ibe yindawo evamile yokubeka i-valve kagesi kanye nesihleli se-valve kagesi esihlakaniphile. 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., indawo yokubeka ivalvu kagesi ye-fieldbus nayo ingathatha u-P> 6, ngokuya ngendlela yokuthola isignali yempendulo nayo ingahlukaniswa. Isibonelo, indawo ye-valve ithola isignali yendawo ye-valve ngendlela yenduku yokuxhuma ngomshini, isibonisi se-valve sithola ukususwa kwesiqu se-valve ngendlela ye-Hall effect, isibonisi se-valve sithola ukugudluzwa kwesiqu se-valve ngendlela yokungenisa i-electromagnetic, njll. (3) ) Umgomo wokusebenza 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. (okune) isimiso sesenzo sendawo (1) esisetshenziselwa ukulawula isistimu yokulawula ebalulekile enezidingo zekhwalithi ephezulu, ukuze kuthuthukiswe ukunemba kokuma nokuthembeka kwevalvu elawulayo. (2) kuvalvu iziphetho ezimbili zomehluko wengcindezi inkulu (△p1MPa) izikhathi. Ngokwandisa umfutho womthombo womoya, amandla okukhiphayo e-actuator ayakhuphuka ukuze kunqobe amandla angalingani akhiqizwa uketshezi oluku-spool futhi kuncishiswe iphutha lokushaya. (3) lapho i-medium ilungiselelwa izinga lokushisa eliphezulu, ukucindezela okuphezulu, izinga lokushisa eliphansi, elinobuthi, elivuthayo, eliqhumayo, ukuze kuvinjelwe ukuvuza kwangaphandle, ukupakisha kuvame ukucindezelwa kakhulu, ngakho-ke ukungqubuzana phakathi kwe-valve stem kanye nokupakisha enkulu, ngalesi sikhathi, isitholi singakunqoba ukubambezeleka. (4) Uma okuphakathi kuwuketshezi lwe-viscous noma kuqukethe into eqinile emisiwe, i-positioner inganqoba ukumelana nendawo ekunyakazeni kwesiqu. (5) kububanzi obukhulu (i-Dg100mm) ivalvu elawulayo ukuze kukhuliswe ukuphonswa kwe-actuator. (6) Uma ibanga eliphakathi kwesilawuli ne-actuator lingaphezu kwama-60m, i-positioner inganqoba i-transmission lag yesiginali yokulawula futhi ithuthukise isivinini sokuphendula se-valve. (7) esetshenziselwa ukuthuthukisa izici zokugeleza kwe-valve elawulayo. (8) Uma isilawuli silawula ama-actuator amabili ukuze asebenzise ukulawula kwesigaba, izigxivizo ezimbili zingasetshenziswa ukwamukela isignali yokufaka ephansi kanye nesignali yokufaka ephezulu ngokulandelana, bese kuba isenzo sebanga eliphansi le-actuator, esinye isenzo sokuphakama, okungukuthi, sakha ukuhlukanisa. ukulungisa. (5) Izinhlobo ezifanele Ama-actuator asetshenziswa ngokuvamile ahlukaniswe ama-actuator womoya, ama-actuator kagesi, i-stroke eqondile, i-Angle stroke. Isetshenziselwa ukuvula nokuvala zonke izinhlobo zamavalvu namapuleti omoya ngokuzenzakalelayo nangokuzenzela.