Lapho i-valve ihamba ngebhayisikili, ikhwalithi yokulawula ingabonwa ngokulinganisa nokuhlela ukugeleza kushiya i-valve nokusebenzisa okokufaka kwe-valve, njengamanje (kuma-valve alawulwa ikhoyili) noma ubude besinyathelo (kuma-valve alawulwa yi-stepper motor. ). Lesi sihloko sizodingida izici zokusebenza kwe-valve curvejin ikakhulukazi, lapho ukugeleza kuqala khona, nokuthi inkambiso yejika ikhombisa kanjani izici ezithile zama-valve nemiphumela yazo.
Lapho ukhetha i-valve, udinga ukubheka amapharamitha amaningi, kodwa uma kuhileleke imishini ebucayi futhi ukunemba kubalulekile ekusetshenzisweni, njengokuhlaziya uketshezi, izici zokuphakamisa ukugeleza kufanele zicatshangelwe, ngoba ukugeleza kokuqala kungase kuthinte ngokumangalisayo. impilo nempilo yalo lonke uhlelo. gijima. Isibonelo, uma i-valve ivumela ukugeleza okungazelelwe, ingase ibangele ukushaqeka kwe-hydraulic (eyaziwa nangokuthi isando samanzi noma isando esiwuketshezi). Lokhu kungabonakala kuMfanekiso 1, lapho indawo eyindilinga ikhombisa ukugeleza okuphezulu okubukhali okwenzeka lapho i-valve iphakanyiswa noma ivulwa.
Ukuphakama okungazelelwe kuvame ukubangelwa indlela indawo yokuvala yangaphakathi ye-inlet (imvamisa umlomo wombhobho) osebenzisana ngayo nendawo evalekayo ye-valve, ngokuvamile kuvame i-poppet valve enenjoloba enamathela endaweni yayo. Ngeshwa, imvelo yenjoloba (i-fluororubber, i-EPDM, njll.) yenza kube lula ukunamathela, ukuwohloka nokululaza, okuthi kwezinye izimo kubangele ukuthi i-poppet inamathele ku-nozzle ngaphambi kokuba ivele ngokuzumayo. Ukungalungi kwemishini kungase futhi kubangele noma kubangele ukwanda okungazelelwe kokugeleza, kodwa lokhu kuhlobene kakhulu nokwakheka kwe-valve, njengeziphethu ngisho nokungqubuzana.
Izinhlobo ezithile zamavalvu zinezici eziwenza afaneleke kakhulu ekunciphiseni ukuphakama kokugeleza noma ukukhuphuka nokushaywa ngesando, njengamavalvu esango, amavalvu ebhola, noma amavalvu enaliti. Ukuze ukhawulele ukugeleza kwamandla ohlelweni lwakho lokusebenza, indawo ephuma kuyo i-valve idinga ukuguquguquka endaweni yayo yamahhala. I-valve yokulawula evamile, efana ne-poppet valve noma i-spool valve, ine-orifice engashintshi. Ngakho-ke, i-lift endaweni yokuvala isebenza kuwo wonke umzungezo we-orifice. Lokhu kuholela ekuphakameni kokuqala kokugeleza. Isibonelo, i-orifice plate engu-0.006 ene-control lift engu-0.001 izomela u-6.5% wokugeleza okugcwele, okulingana nokusuka kungazelelwe noma ukweqa.
Ukushaqeka kwe-hydraulic kungabangela ukudlidliza, umsindo, ngisho nokuphuka/ukwehluleka kwamapayipi noma izigxivizo. Ikakhulukazi kumasistimu azwelayo, ukuqinisekisa ukukhuphuka okushelelayo nokungashintshi kokugeleza kuyisihluthulelo, hhayi nje impilo yomshini noma ishejuli yokulungisa. Ukushintsha okungazelelwe kokugeleza, kungakhathaliseki ukuthi kuhlala isikhathi esifushane kangakanani, kungaba yingozi futhi kubize kakhulu ekulawuleni izinhlelo zokusebenza ezibucayi (ezifana nemithi noma ukulawula umoya), futhi lokhu kuyiqiniso futhi uma usebenzisa amathuluzi ukulinganisa izici ezihlukahlukene zesistimu, njengezinto ezincane. i-blood cuffs. Ukuphakama okungazelelwe kokugeleza kungase kube phezulu kakhulu futhi kusheshe kakhulu ukuba imitha ikwazi ukukala futhi idlulise ngesikhathi, okuzoholela ekufundweni okunganembile noma okungaphelele.
Ukugeleza okuphezulu okubukhali kungase futhi kusho ukuthi imidiya engaphambi kwesikhathi noma eyeqile ingena epayipini. Kuzinhlelo zokusebenza ezibucayi (ezifana nokukhipha isampula), lokhu kungase kumoshe izihlanzi/izincibilikisi ezibizayo futhi kuholele ekuhlaziyweni okungalungile. Kuyadingeka futhi ukucabangela isimo sendawo ngokwayo, njengegazi noma olunye uketshezi oluzwelayo oluthambekele ku-hemolysis noma i-homolysis, lapho amaseli noma izinhlanganisela kuketshezi ziphulwa khona. Isiyaluyalu sizokhuphula ukuxegiswa kwamabhondi amakhemikhali, ngakho ukunciphisa iziphazamiso noma isiphithiphithi ekuhambeni kuzovimbela ukulimala noma ukucekelwa phansi kwamasampuli athambile. Ngakho-ke, ama-valve asetshenziswa ezinhlelweni zokusebenza ezinembayo kufanele anikeze iphrofayili yokugeleza enciphisa izakhi zokuvikela ezithuthumayo, amathuluzi angaphakathi, nezingxenye zoketshezi ekulimaleni. Ngenxa yalesi sizathu, kunconywa ukusebenzisa "isiqalo esithambile" (bheka Umfanekiso 2). Ngokungafani ne-boost eboniswe ngaphambilini, "isiqalo esithambile" sinikeza isingeniso sokugeleza okuthambile ngaphambi kokwenza kube lula ukugeleza okulinganayo (kwamanje noma isinyathelo ngasinye esinikeziwe).
Ukuqinisekisa ukuthi ijika lokugeleza lilandela inkambiso efanayo ye-valve-to-valve, ikakhulukazi izici zokuphakamisa, kubalulekile ukuvumelana ekukhiqizeni nokwakha ukuzethemba kumkhiqizo; Phela, isilawuli esisezingeni eliphansi esihle kakhulu esivumela ukugeleza kwe-microliter kuhle kakhulu uma kuphindaphindwa . Kodwa-ke, umuntu kufanele futhi avume ukuthi awekho ama-valve amabili anokusebenza okufanayo, ngoba awekho ama-valve amabili angafana ncamashi. Ngakho-ke, kufanele kube nobubanzi lapho wonke ama-valve azosebenza khona. Lapho kukhethwa ama-valve, ububanzi kufanele buqondwe futhi buqondwe ukuze wonke ama-valve kunoma iyiphi iqoqo elinikeziwe afane ngokwanele futhi akwazi ukusebenza njengoba kulindelekile ohlelweni olunikeziwe. Lokhu ikakhulukazi kuhilela ukuphakamisa.
Ngakho-ke, noma nini lapho ukhetha i-valve, kubalulekile ukunaka izici zokuphakamisa i-valve futhi ucabange ukuthi izosekela noma ivimbele isicelo.
Kusetshenziswa i-actuator yomugqa encane enamandla kunazo zonke futhi enamandla kakhulu embonini, isiqalo esithambile sokulawula isinyathelo esinelungelo lobunikazi se-Eclipse, i-ceramic sliding isolation valve isendaweni ehamba phambili embonini mayelana nokusebenza nokuqina. Le valve ewina umklomelo ifaneleka ngokufanelekile ekusetshenzisweni okubucayi njengokuthuthwa koketshezi negesi, ezokwelapha, ukuhlaziya, kanye ne-automation yezimboni ezidinga ukulungiswa kwe-ultra-fine kanye nokuphindaphinda okuhle kakhulu. Ngaphezu kwalokho, umklamo oyingqayizivele uvumela amaphrofayili wethrafikhi yangokwezifiso.
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Isikhathi sokuthumela: Dec-01-2021
