I-Pneumatic Actuator Gate Valve: Umhlahlandlela Ojulile

Iyini i-Pneumatic Actuator Gate Valve?

I-valve yesango le-pneumatic actuator uhlobo lwe-valve eqhutshwa yi-actuator ye-pneumatic, esetshenziswa kakhulu ukulawula ukugeleza nokuvala kwemidiya emapayipini. Izingxenye zayo ezibalulekile zifaka phakathi umzimba we-valve, i-gate disc, i-pneumatic actuator, kanye nezinto zokuvala. Isebenzisa umoya ocindezelwe njengomthombo wamandla, ivumela ukuvulwa nokuvalwa okusheshayo kwe-valve. Ama-valve esango le-pneumatic aziwa ngokusebenza kwawo okusheshayo, ukuthembeka okuphezulu, kanye nokuzivumelanisa nezimo okuqinile, okwenza asetshenziswe kabanzi ezimbonini ezifana namafutha negesi, ukucubungula amakhemikhali, ukukhiqizwa kwamandla, i-metallurgy, kanye nokwelashwa kwamanzi.

Isimiso Sokusebenza

Ingaphakathi le-valve yesango lomoya lisesimisweni esisebenzisanayo sesilinda ne-piston:

•Idrayivu Yomthombo Womoya:

Umoya ocindezelwe (ngokuvamile ku-0.4–0.8 MPa) ungena esilinda, uqhube ukunyakaza kwepiston.

•Indlela Yokudlulisa:

I-piston ixhunywe esiqwini se-valve ngenduku ye-piston, ihambisa i-gate disc ngokuqondile ukuya ohlangothini lokugeleza kwe-media.

•Ukuvala iValve:

Umoya ocindezelwe ungena engxenyeni engenhla yesilinda, ucindezela i-piston phansi ukuze ucindezele idiski yesango esihlalweni se-valve ukuze kuvalwe ngokuqinile.

•Ukuvula iValve:

Umoya ocindezelwe ungena engxenyeni engezansi yesilinda, usunduza i-piston phezulu ukuze uphakamise idiski yesango isuke esihlalweni se-valve, okuvumela ukugeleza kwemidiya.

•Ukusebenza Ngesandla:

Amanye amamodeli afaka indlela yokusebenza ngesandla, njengesondo lesandla noma induku yesikulufu, yokusebenza kwevalvu ngesikhathi sokwehluleka komthombo womoya.

Izici Zesakhiwo Sama-valve Esango Lomoya

Ama-valve esango lomoya abonisa izici ezihlukile zesakhiwo:

•I-Actuator yomoya:

Ngokuvamile isebenzisa amasilinda asebenza kabili noma asebenza kanye alawulwa ama-valve e-solenoid ukuqondisa ukugeleza komoya. Amasilinda asebenza kabili adinga ukunikezwa komoya okuqhubekayo ukuze alondoloze indawo, kuyilapho amasilinda asebenza kanye esebenzisa ukubuya kwentwasahlobo ukuze kusetshenziswe ngokuphepha.

•I-Valve Body kanye ne-Gate Disc:

Umzimba wevalvu uvame ukwenziwa ngezinto ezifana nensimbi ephothiwe noma insimbi engagqwali. Amadiski esango aklanywe njengezinhlobo ezimise okwe-wedge noma ezihambisanayo—ezimise okwe-wedge zinikeza ukuvala okungcono kodwa ukumelana nokugeleza okuphezulu, kuyilapho izinhlobo ezihambisanayo zinokumelana nokugeleza okuphansi kodwa zithembele ekuqineni kwezinto ukuze zivale.

•Isakhiwo Sokuvala:

Izindlela zokuvala zifaka phakathi ukuvala okuqinile (insimbi-kuya-kwensimbi) kanye nokuvala okuthambile (kusetshenziswa irabha, i-PTFE, njll.). Ukuvala okuthambile kufanelekile ezindaweni zokushisa okuphansi kanye nezokucindezela okuphansi, kanti ukuvala okuqinile kulungele izindawo zokushisa okuphezulu, ezinokucindezela okuphezulu, noma ezigqwalisayo.

•Izindlela Zokuxhumana:

Ukuxhumeka okuvamile kufaka phakathi i-flanged, i-wafer-type, kanye ne-welded. Ukuxhumeka kwe-Flanged kwenza kube lula ukufaka nokulungisa, imiklamo ye-wafer-type incane, futhi ukuxhumeka kwe-welded kusetshenziswa kumapayipi anomfutho ophezulu.

• Umklamo Womzimba Wevalvu:

Uhlobo lwesiqu esikhuphukayo:Isiqu sevalvu siya phezulu naphansi kanye nesango, sinikeza isibonakaliso esibonakalayo sesimo sevalvu.

Uhlobo lwesiqu esingavuki:Isiqu sevalvu siyajikeleza ngenkathi isango lihamba, lifanele izindawo ezincishisiwe.

• Amafomu Okuvala:

Ukuvala okunzima:Ukuxhumana kwensimbi nensimbi phakathi kwesihlalo se-valve nesango, ukumelana namazinga okushisa aphezulu kanye nokucindezela kodwa kuncike ekuqondeni komshini.

Ukuvalwa okuthambile:Isango ligcwele izinto ezifana nerabha ye-nitrile noma i-EPDM, okunikeza ukuvala okuhle kakhulu kodwa ukubekezelela izinga lokushisa okulinganiselwe.

• Izinhlobo ze-Actuator:

Isilinda esisodwa:Isakhiwo esilula, esifaneleka kakhulu kuma-valve anobubanzi obuncane.

Isilinda esiphindwe kabili:Inikeza amandla okuphakamisa aphindwe kabili, inciphisa ingozi yokujima ezimweni ezinkulu noma ezinomfutho ophezulu.

• Indlela Yokubhafa:

Kunciphisa umthelela ngesikhathi sokuvulwa nokuvalwa kwama-valve, kwandise isikhathi sokuphila kwezindawo zokuvala.

Izinzuzo Eziyinhloko Zamavalvu Esango Lomoya

Ama-valve esango le-actuator yomoya anikeza izinzuzo eziningana ezibalulekile:

• Ukulawula Okuzenzakalelayo:

Zisekela ukusebenza okukude kanye nokuhlanganiswa ne-DCS, i-PLC, nezinye izinhlelo zokulawula, okuvumela izinqubo ezenzakalelayo. Impendulo yazo esheshayo izenza zifaneleke ukusetshenziswa njalo kokujikeleza, njengokucubungula amakhemikhali.

• Ukuphepha Nokuthembeka:

Ama-actuator omoya awakwazi ukuqhuma, okwenza aphephe ezindaweni ezivuthayo neziqhumayo njengemipayipi kawoyela negesi. Ukuguqulwa ngesandla kuqinisekisa ukusebenza kahle ngesikhathi sokwehluleka komthombo womoya.

• Ukuzivumelanisa Nezimo Okuqinile:

Lawa mavalvu amelana nokugqwala, anezinto zomzimba ezifana nensimbi engagqwali noma insimbi yekhabhoni ezifanelekela izinto eziqinile okuhlanganisa ama-acid, ama-alkali, kanye nezifutho zikasawoti. Abekezelela amazinga okushisa aphezulu kanye nokucindezela—amavalvu okuvala athambile asebenza kusukela ku--29°C kuya ku-210°C, kuyilapho amavalvu okuvala aqinile ekwazi ukusingatha kufika ku-550°C.

• Ukulungiswa Okulula:

Njengoba zinesakhiwo esilula nezingxenye ezimbalwa, zinezinga eliphansi lokwehluleka. Imiklamo yokupakisha ivumela iminyaka yokusebenza ngaphandle kokushintshwa, okunciphisa isikhathi sokungasebenzi.

Izinzuzo ezengeziwe zifaka:

• Isenzo Esisheshayo:Ama-actuator omoya asabela ngokushesha (ngokuvamile imizuzwana engu-0.5-2), afanele izidingo zokuvala ngokushesha.

• Ukuthembeka Okuphezulu:Akukho ingozi yenhlansi kagesi, okuqinisekisa ukuphepha ezindaweni eziyingozi.

• Ukulungiswa Okulula:Umklamo olula onezingxenye ezincane kunciphisa ukwenzeka kokwehluleka.

• Ukuguquguquka:Ukulungisa umfutho womoya kuvumela ukulawula ukugeleza, kuthuthukisa ukuzivumelanisa nezimo.

Izimo Zohlelo Lokusebenza

Ama-valve esango lomoya asetshenziswa emikhakheni eyahlukahlukene:

• Uwoyela negesi:

Uqashwe kumapayipi nasemayunithi okuhlanza ukuze ahlukanise imidiya, edinga umfutho ophezulu kanye nokumelana nokugqwala.

• Imboni Yamakhemikhali:

Isetshenziswa emipayipini ephatha izinto ezigqwalisayo njenge-asidi, ama-alkali, kanye nezinyibilikisi eziphilayo, okudinga izinto ezingamelani nokugqwala njenge-Hastelloy noma ama-titanium alloys.

• Amandla kanye ne-Metallurgy:

Kusetshenziswa kumapayipi amanzi okuphakelwa kwebhoyila kanye nomusi ngaphansi kwezimo zokushisa okuphezulu kanye nokucindezela okuphezulu, ngokuvamile ngezinto zokuvala ezishisa kakhulu.

• Ukwelashwa Kwamanzi:

Isetshenziswa ekuhlanzweni kwamanzi amdaka kanye nasekukhishweni kosawoti emanzini, lapho ama-valve kumele amelane nokuguguleka kanye nokuqhekeka.

Izindinganiso Zemboni Nokucatshangelwa Kokukhetha

Uma ukhetha i-valve yesango le-pneumatic, cabanga ngalezi zici:

• Izici Eziphakathi:

Faka izinga lokushisa, ingcindezi, ukugqwala, kanye nokuba khona kwezinhlayiya eziqinile. Isibonelo, imidiya erhabaxa idinga amadiski esango angagugi, kuyilapho imidiya eshisa kakhulu idinga izinto zokuvala ezishisa kakhulu. Imidiya egqwalisayo ingadinga imizimba yensimbi engagqwali enokuvala okuthambile, kanti izinhlelo zokusebenza ezishisa kakhulu, ezinokucindezela okuphezulu zivame ukusebenzisa ukuvala okuqinile ngezinto ezifana ne-20CrMoV.

• Ingcindezi Yokusebenza kanye Nezinga Lokushisa:

Khetha amavalvu ngokusekelwe kumapharamitha okuklama amapayipi, njengezilinganiso zokucindezela (isb., i-PN16, i-PN25) kanye namazinga okushisa (amavalvu ajwayelekile ngokuvamile amboza -20°C kuya ku-200°C).

• Izidingo Zokuvala:

Khetha amafomu okuvala ngokwezigaba zokuvuza (isb., i-ANSI Class VI). Ukuvala okuthambile kunikeza ukuvuza okuphansi kodwa kubekezelelwa izinga lokushisa elilinganiselwe, kanti ukuvala okuqinile kusingatha amazinga okushisa aphezulu anamazinga aphezulu okuvuza.

• Ukufaniswa kwe-Actuator:

Qondanisa imodeli ye-pneumatic actuator nezidingo ze-torque ye-valve, bese ufaka izesekeli ezifana nama-solenoid valves kanye nezihlungi zomoya.

• Imvamisa Yokusebenza:

Uma ugibela njalo, khetha amasilinda amabili anezindlela zokunciphisa ukuguguleka.

• Izithiyo Zesikhala:

Emapayipini angaphansi komhlaba noma ezindaweni ezivalekile, izinhlobo zeziqu ezingakhuphuki ziyathandwa.

• Izidingo Zokulawula:

Ukuze uthole imithetho eqondile, khetha amamodeli anamadivayisi okuphendula isikhundla, njengezishintshi zomkhawulo.

Izincomo Zokusekela Imishini Nokulungisa

Ama-valve esango lomoya adinga imishini eyengeziwe ukuze asebenze kahle:

• Iyunithi Yokwelapha Umthombo Womoya:

Kufaka phakathi izihlungi zomoya, izilawuli zokucindezela, kanye nezithambisi (amayunithi e-FRL) ukuqinisekisa ukutholakala komoya ohlanzekile, owomile, nogcotshwe.

• Amavalvu e-Solenoid:

Lawula isiqondiso somoya; khetha ngokusekelwe emvamisa yokujikeleza kwe-valve, ucabangela usayizi webhore kanye nezinto.

• Amaswishi Omkhawulo:

Nikeza impendulo ngesimo se-valve ukuze ulawule ngokuzenzakalelayo.

Amathiphu okulungisa afaka:

• Hlola njalo umfutho womoya ukuqinisekisa ukuthi uhlala ngaphakathi kwebanga elilinganiselwe le-actuator (ngokuvamile i-0.4–0.8 MPa).

• Faka esikhundleni izinto zokuhlunga bese uthambisa izinkomishi zamafutha kuyunithi ye-FRL minyaka yonke.

• Ukuze uthole ama-valve okuvala athambile, hlola izivalo njalo eminyakeni emi-2-3 ukuze ubone ukuthi ziyaguga yini bese uzishintsha njengoba kudingeka.