Kusho kutsini linani le CV? Indlela yekukhetsa valve yekulawula nge Cv inani?

Inivalvubunjiniyela, inani le-Cv (I-Flow Coefficient) yekulawulaivalvukusho lizinga lekugeleta kwevolumu noma lizinga lekugeleta kwebuningi bephayiphi lesemkhatsini ngekusebentisa ivalve ngesikhatsi seyunithi ngaphansi kwetimo tekuhlola lapho liphayiphi ligcinwa khona ngekucindzeteleka lokuhlala njalo. Lokusho kutsi, umthamo ukugeleza valve.

Lapho linani le-flow coefficient liphakeme, kulapho kulahleka kwemfutfo kuyaphansi njengobe loludzaka lugeleta nge-ivalvu.

Inani le Cv le valve kumele linqunywe ngekuhlola kanye nekubalwa.

I-CVlinaniyipharamitha lebalulekile yetebuchwepheshe lekala umthamo wekugeleza kwevalve yekulawula ngaphansi kwetimo letitsite. Inani le-CV alibonisi kuphela kusebenta kwevalve ngokwayo, kepha liphindze lihlobane ngco nekuklanywa kanye nekusebenta kahle kweluhlelo lwekulawula ludzaka.

Lencazelo ivame kusekelwe kuletimo letijwayelekile letilandzelako: i .ivalvuivulekile ngalokuphelele, umehluko wekucindzeteleka ngu 1 lb/in2 (noma 7KPa) emaphetselweni, bese loludzaka lungu 60°F (15.6°C) wemanti lahlobile, lapho khona umthamo wemanti (ngema gallons ase US) lowendlula kule valve ngemzuzu linani le Cv le valve. Kufanele kucashelwe kutsi i-flow coefficient eChina ivame kuchazwa eluhlelweni lwemethrikhi, ngeluphawu lwe Kv, futsi budlelwane nelinani le Cv ngu Cv=1.156Kv.

Indlela yekutfola i-caliber ye-valve ngenani le-Cv

1. Bala inani le-CV lelifunwako:

Ngekuya kwetidzingo letitsite teluhlelo lwekulawula lutfuli, njengekugeleta, umfutfo lohlukile, umkhatsi kanye naletinye timo, linani lelidzingekako le Cv libalwa kusetjentiswa ifomula lehambisanako noma isoftware. Lesinyatselo sitsatsa tintfo letifana netimphawu temtimba taleliketjezi (sib., viscosity, density), timo tekusebenta (sib., kushisa, umfutfo), kanye nendzawo yevalve.

2. Khetsa ububanzi valve kwesokudla:

Ngekuya kwelinani le Cv lelifunwako lelibaliwe kanye nelinani le Cv lelilinganiselwe le valve, kukhetfwa umkhawulo we valve lofanele. Inani le Cv lelilinganisiwe le valve lekhetsiwe kumele lilingane noma libe likhulu kancane kunelinani le Cv lelidzingekako kwentela kucinisekisa kutsi le valve ingahlangabetana nesidzingo sekugeleta mbamba. Ngesikhatsi lesifanako, kuphindze kudzingeke kutsi kucatshangelwe letinye tintfo letifana netintfo, sakhiwo, kusebenta kwekuvala, kanye nendlela yekusebenta kwevalve kucinisekisa kutsi kusebenta jikelele kwevalve kuhlangabetana netidzingo teluhlelo.

3. Kucinisekisa Nekulungisa:

Ngemuva kwekukhetsa kwekucala kwe .ivalvucaliber, kucinisekiswa lokudzingekako kanye nekulungisa kufanele kwentiwe. Loku kufaka ekhatsi kucinisekisa kutsi kusebenta kwekugeleta kwevalve kuhlangabetana netidzingo teluhlelo ngekubalwa kwekulingisa noma kuhlolwa kwemhlaba mbamba. Uma kutfolakala kuphambuka lokukhulu, kungase kudzingeke kutsi kubalwe kabusha linani le Cv noma kulungiswe bubanti be valve.

Sisonga

Eluhlelweni lwekuniketa emanti esakhiweni, uma ngabe ivalve yekulawula ingahlangabetani nelinani lelidzingekako le CV, lempompi yemanti ingacala futsi ime njalo noma igijime ngemtfwalo lomkhulu ngaso sonkhe sikhatsi. Loku akusiko nje kucitsa emandla agezi, kepha ngenca yekugucugucuka kwemfutfo njalo, kungaholela ekuxhumaneni kwemaphayiphi lakhululekile, kuvuza, futsi kungabangela ngisho nekulimala kwempompi ngenca yekulayisha kakhulu sikhatsi lesidze.

Ngalokufishane, linani le-Cv le-valve yekulawula liyinkomba lebalulekile yekukala likhono layo lekugeleza. Ngekubala kahle linani le Cv kanye nekutfola i-valve caliber lefanele lesekelwe kuyo, kusimamisa kanye nekusebenta kahle kweluhlelo lwekulawula lutfuli kungacinisekiswa. Ngako-ke, enchubeni yekukhetsa valve, umklamo weluhlelo kanye nekusebenta kahle, kufanele kunakwe ngalokugcwele kubalwa kanye nekusebentisa linani le-Cv.

Tianjin Tanggu Ivalvu Yekuvala Emanti Inkampaniikakhulukati kukhicita lokucinile lokuhletiivalvu yevivane, Ivalvu yesango, Y-sisefo, ivalvu yekulinganisa, ivalvu yekuhlola, ivalvu yekulinganisa, sivimbela kugeleta emuva njll.