Yiniivalvukuvuleka kwemgodzi? Indlela yekuyicedza?
Tianjin Tanggu Ivalvu Yekuvala Emanti Inkampani, Ltd
Tianjin,SHAYINA
ye-19,Juni,2023
Njengobe nje umsindvo ungaba nemtselela lomubi emtimbeni wemuntfu, emafrikhwensi latsite angadlala umonakalo emishinini yetimboni lapho i-valve yekulawula ikhetsiwe kahle, kunengoti lenkhulu ye-cavitation, lokutawuholela emsindvweni lophakeme kanye nemazinga ekudvudvuta, lokuholela ekulimaleni lokusheshako kakhulu emaphayiphi langekhatsi nalasephansi e-ivalvu.
Ngetulu kwaloko, emazinga emsindvo laphakeme avame kubangela kudvudvuta lokungalimata emaphayiphi, tintfo tekusebenta kanye naletinye tintfo tekusebenta .Ivalvungekuhamba kwesikhatsi, kwehla kwetincenye, valve cavitation kubangelwa uhlelo emaphayiphi uthambekele umonakalo omkhulu. Lomonakalo ubangelwa kakhulu ngumsindvo wemandla ekudvudvuta, inchubo yekugcola lesheshisako kanye ne-cavitation lekhonjiswa lizinga leliphakeme lemsindvo wekudvudvuta lokukhulu kwe-amplitude lokukhicitwa kwakheka kanye nekuwa kwemabhubhu emfutfo edvute naphansi kwekuncipha ..
Noma loku kuvame kwenteka ebholeni .emavalvukanye nemavalvu lajikeletako emtimbeni, empeleni kungenteka ngesikhatsi lesifishane, kululama lokusezingeni leliphakeme lokufana nencenye yemtimba we-wafer we-V-ball .ivalvu, ikakhulukatiemavalvu evivaneeceleni kwemfudlana lowehlako wevalve lapho iivalvukucindzetelekile esimeni sinye lesithambekele ku-cavitation, lesithambekele ekuvuzeni emapayipini e-valve kanye nekulungisa kwekushelela, i-valve ayifaneleki kulesigaba selayini.
Kungakhatsaliseki kutsi cavitation kwenteka ngekhatsi valve noma phansi valve, imishini endzaweni cavitation kuyoba ngaphansi umonakalo lomkhulu emafilimu ultra-mncane, titfombo kanye nesigaba lesincane cantilever takhiwo, amplitude omkhulu kudvudvuta kungabangela oscillations. Emaphuzu ekwehluleka njalo atfolakala etintfweni tekusebenta letifana nemageji ekucindzeteleka, ema-transmitter, imikhono ye-thermocouple, ema-flowmeter, tinhlelo tekutsatsa emasampula Ema-Actuators, ema-positioner kanye nema-switch emkhawulo lacuketse titfombo atawuhlupheka ngekugcoka lokusheshako, futsi kubakaki bekufaka, tintfo tekubopha kanye netihlanganisi titawukhululeka futsi tihluleke.
Kugcola kwekukhatsateka, lokwenteka emkhatsini wetindzawo letigugile letivulekele kudvudvuta, kuvamile edvute nemavalvu e-cavitation. Loku kukhicita ema oxides lacinile njenge abrasives kwentela kusheshisa kugcoka emkhatsini wetindzawo letigugile. Tintfo letitsintsekile tifaka ekhatsi kuhlukaniswa kanye nekuhlola emavalvu, ngetulu kwemavalvu ekulawula,emaphampu, tikrini letijikeletako, emasampula kanye nanoma nguyiphi lenye indlela lejikeletako noma leshelelako.
Kudvudvuta lokusezingeni leliphakeme kungaphindze kudzabuke futsi kugcobe tincenye tevalvu yensimbi kanye netindvonga temaphayiphi. Tinhlayiya tensimbi letisakateke noma tintfo temakhemikhali letiguculako tingangcolisa imidiya lesephayiphini, lokungaba nemtselela lomkhulu kumaphayiphi emavalvu lahlantekile kanye nemidiya yemaphayiphi lehlantekile lesetulu. Loku nako akukavumeleki.
Kubiketela kwehluleka kwe-cavitation kwemavalvu epulaki kuyinkimbinkimbi kakhulu futsi akumane nje kubalwe kwehla kwemfutfo we-choke. Lokuhlangenwe nako kukhombisa kutsi kungenteka kutsi umfutfo emfuleni lomkhulu wehlele kumfutfo wemhwamuko walokusamanti ngaphambi kwekuhwamuka kwendzawo kwalendzawo kanye nekuwa kwe bubble yemphunga. Labanye bakhiciti bemavalvu babiketela kwehluleka kwekusitheka kwelilanga ngaphambi kwesikhatsi ngekuchaza kwehla kwemfutfo wekulimala kwekucala. Indlela yemkhiciti wevalve yekucala ngekubiketela umonakalo we-cavitation isekelwe ekutseni emabhubhu emphunga ayawa, abangele i-cavitation kanye nemsindvo. Kuye kwatfolakala kutsi umonakalo lomkhulu we cavitation utawugwenywa uma lizinga lemsindvo lelibalwe lingaphansi kwemikhawulo lebhalwe lapha ngentasi.
Usayizi wevalve kuze kube ngemasentimitha lamatsatfu – 80 dB
Usayizi wevalve wemasentimitha langu-4-6 – 85 dB
Usayizi wevalve 8-14 emasentimitha - 90 dB
Emasayizi evalve langemasentimitha langu-16 kanye nebukhulu – 95 dB
Tindlela tekucedza umonakalo we-cavitation
Umklamo wevalvu lokhetsekile wekucedza i-cavitation usebentisa kugeleta lokuhlukanisiwe kanye nekwehla kwemfutfo lolinganisiwe:
“Kuphambukisa kwe valve” kuhlukanisa kugeleta lokukhulu kube kugeleta lokuncane lokuningi, futsi indlela yekugeleta ye valve yentelwe kwentela kutsi kugeleta kugeleze ngetikhala letincane letiningi letihambisanako. Njengobe ingxenye ubukhulu cavitation bubble kubalwa ngekuvulwa lapho kugeleza kudlula. Lokuvuleka lokuncane kwenta kutsi kube nemabhubhu lamancane, loku kwenta kutsi kube nemsindvo lomncane kanye nekulimala lokuncane uma kukhulunywa ngekulimala.
“Kwehla kwemfutfo ngekulinganisa” kusho kutsi le valve yentelwe kutsi ibe nemaphuzu lamabili noma ngetulu ekulungisa ngekulandzelana, ngako esikhundleni sekutsi konkhe kwehla kwemfutfo ngesinyatselo sinye, kutsatsa tinyatselo letincane letinyenti. Ngaphansi kwekwehla kwemfutfo ngamunye kungavimbela umfutfo ekuncipheni kusuka ekuweni umhwamuko umfutfo weliketshezi, ngaleyo ndlela kuqedwe isimanga cavitation ku valve.
Inhlanganisela yekuphambukisa kanye nekucindzeteleka kwehla staging ku valve efanayo kuvumela ncono cavitation ukumelana ngu. Ngesikhatsi sekuguculwa kwevalve, kubeka ivalve yekulawula kanye nekucindzeteleka ekungeneni kwevalve kuphakeme (sib. eceleni lokusetulu kwemfula, noma ngekuphakama lokuphansi), ngalesinye sikhatsi kucedza tinkinga te-cavitation.
Ngetulu kwaloko, kubeka valve yekulawula endzaweni yekushisa kwemanti, ngako-ke umfutfo lomhwamuko lophansi (njengekushisa lokuphansi eceleni kwekushisa) kungasita ekucedzeni tinkinga te-cavitation.
Lesifinyeto siye sakhombisa kutsi lesentakalo se-cavitation se-valves ngempela akusiyo kuphela mayelana nekusebenta kwekubola kanye nekulimala kwemavalvu. Emaphayiphi lasehla kanye nemishini nayo isengotini. Kubiketela cavitation kanye nekutsatsa tinyatselo tekuyicedza yindlela kuphela yekugwema inkinga yetindleko tekusebentisa valve letibitako.
Sikhatsi sekuposa: June-25-2023
