Ukulinganisa ngokunembileuvemvane valveusayizi ubalulekile ukuze kuqinisekiswe ukulingana okufanele nokuvimbela ukuvuza. Ngoba amavalve ovemvane adlala indima ebalulekile ezimbonini ezihlukahlukene. Kubandakanya uwoyela negesi, izitshalo zamakhemikhali kanye nezinhlelo zokulawula ukugeleza kwamanzi. Lawa ma-valve ovemvane alawula izinga lokugeleza kwamanzi, ingcindezi, amathuluzi ahlukene futhi alawula ukugeleza komfula.
Ukwazi ukulinganisa usayizi wevalve uvemvane kungavimbela ukungasebenzi kahle kanye namaphutha abizayo.
1. Izisekelo ze-Butterfly valve
1.1 Yini ivalve uvemvane? I-valve yevemvane isebenza kanjani?
Ama-valve e-Butterflylawula ukuhamba koketshezi ngaphakathi kwepayipi. I-valve uvemvane iqukethe idiski ezungezayo evumela ukuthi uketshezi ludlule lapho idiski iphenduka ihambisane nesiqondiso sokugeleza. Ukuguqula i-disc perpendicular kusiqondiso sokugeleza kumisa ukugeleza.
1.2 Izinhlelo zokusebenza ezijwayelekile
Ama-valve e-butterfly asetshenziswa ezimbonini ezihlukahlukene, kuhlanganise nowoyela negesi, izitshalo zamakhemikhali kanye nezinhlelo zokulawula ukugeleza kwamanzi. Baphatha izinga lokugeleza, bahlukanise amathuluzi futhi balawule ukugeleza komfula. Ukuguquguquka kwazo kuzenza zifanelekele izinsiza ezimaphakathi, eziphansi, eziphakeme zokushisa kanye nezingcindezi.
2. Uyisayizi Kanjani Ivaluvu Yevemvane?
2.1 Usayizi wobuso nobuso
Usayizi wobuso nobuso ubhekisela ebangeni eliphakathi kobuso obubili bevalve uvemvane lapho ifakwe epayipini, okungukuthi, isikhala phakathi kwezingxenye ezimbili ze-flange. Lesi silinganiso siqinisekisa ukuthi i-valve ye-butterfly ifakwe kahle ohlelweni lwepayipi. Ubukhulu obunembile bobuso nobuso bungagcina ubuqotho besistimu futhi buvimbele ukuvuza. Ngokuphambene, izilinganiso ezingalungile zingaholela ezingozini zokuphepha.
Cishe zonke izindinganiso zicacisa ubukhulu bobuso nobuso bamavalvu ovemvane. Eyamukelwa kabanzi i-ASME B16.10, ecacisa ubukhulu bezinhlobo ezahlukene zamavalvu ovemvane, okuhlanganisa namavalvu ovemvane. Ukunamathela kulawa mazinga kuqinisekisa ukuhambisana nezinye izingxenye ohlelweni olukhona lwekhasimende.
2.2 Isilinganiso sokucindezela
Isilinganiso sokucindezela se-valve uvemvane sibonisa ingcindezi enkulu i-valve uvemvane engakwazi ukumelana nayo ngenkathi isebenza ngokuphepha. Uma isilinganiso sokucindezela singalungile, i-valve butterfly enengcindezi ephansi ingase yehluleke ngaphansi kwezimo zokucindezela okuphezulu, okuholela ekuhlulekeni kwesistimu noma ngisho nezingozi zokuphepha.
Amavalvu ovemvane ayatholakala ngezilinganiso ezihlukene zengcindezi, ngokuvamile ezisukela ku-Class 150 kuye ku-Class 600 (150lb-600lb) ngokuvumelana nezindinganiso ze-ASME. Amanye ama-butterfly valves akhethekile angakwazi ukumelana nezingcindezi ze-PN800 noma ngaphezulu. Khetha ingcindezi yesistimu ngokusekelwe ezidingweni zohlelo lokusebenza. Ukukhetha isilinganiso esilungile sokucindezela kuqinisekisa ukusebenza okuhle kakhulu nempilo yesevisi ye-valve uvemvane.
3. I-valve ye-Butterfly ububanzi begama (DN)
Ububanzi obujwayelekile be-valve uvemvane buhambisana nobubanzi bepayipi elixhumayo. Ukulinganisa okunembayo kwamavalvu ovemvane kubalulekile ekwehliseni ukulahleka kwengcindezi nokusebenza kahle kwesistimu. Ivalve yovemvane enosayizi ongalungile ingabangela ukuvinjelwa kokugeleza noma ukwehla kwengcindezi ngokweqile, kuphazamise ukusebenza kwalo lonke uhlelo.
Amazinga afana ne-ASME B16.34 anikeza isiqondiso sokulinganisa i-valve uvemvane, ukuqinisekisa ukuvumelana nokuhambisana phakathi kwezingxenye ezingaphakathi kwesistimu. Lawa mazinga asiza ukukhetha usayizi wevalvu uvemvane ofanele wohlelo oluthile.
4. Ukulinganisa Usayizi Wesihlalo
Iisihlalo butterfly valveusayizi unquma ukulingana nokusebenza kahle kwevalve uvemvane. Ukulinganisa okunembile kuqinisekisa ukuthi isihlalo silingana nomzimba we-valve. Lokhu kulingana kuvimbela ukuvuza futhi kugcina ubuqotho besistimu.
4.1 Inqubo yokukala
4.1.1. Linganisa ububanzi bembobo efakwayo (HS): Faka i-caliper emgodini futhi ulinganise ngokunembile ububanzi.
4.1.2. Nquma ubude besihlalo (TH): Beka isilinganiso setheyiphu ngaphansi kwesihlalo. Linganisa uqonde emaphethelweni aphezulu.
4.1.3. Kala ukujiya kwesihlalo (CS): Sebenzisa i-caliper ukukala ukujiya kongqimba olulodwa emaphethelweni esihlalo.
4.1.4. Kala ububanzi bangaphakathi (ID) besihlalo sevalvu: Bamba i-micrometer kumugqa omaphakathi wesihlalo sevalve uvemvane.
4.1.5. Nquma ububanzi obungaphandle (OD) besihlalo sevalvu: Beka i-caliper emaphethelweni angaphandle esihlalo sevalvu. Yelule ukuze ulinganise ububanzi bangaphandle.
5. Ukuhlukaniswa okuningiliziwe kobukhulu bevalve yevemvane
5.1 Ukuphakama kwevalvu ye-Butterfly A
Ukuze ulinganise ubude A, beka i-caliper noma i-tape measure ekuqaleni kwe-valve yovemvane futhi ulinganise phezulu kwesiqu se-valve. Qinisekisa ukuthi ukulinganisa kuhlanganisa bonke ubude kusukela ekuqaleni komzimba we-valve kuze kube sekupheleni kwesiqu se-valve. Lobu bukhulu bubalulekile ekunqumeni usayizi jikelele wevalve uvemvane futhi inikeza ireferensi yokuthi ungagcina kanjani isikhala sevalve uvemvane ohlelweni.
5.2 I-valve plate diameter B
Ukuze ulinganise ipuleti le-valve ububanzi B, sebenzisa i-caliper ukukala ibanga ukusuka onqenqemeni lwepuleti levalvu, unake ukudlula phakathi nendawo yepuleti levalvu. Okuncane kakhulu kuzovuza, okukhulu kakhulu kuzokwandisa i-torque.
5.3 Ukujiya komzimba we-valve C
Ukuze ulinganise ubukhulu bomzimba we-valve C, sebenzisa i-caliper ukukala ibanga emzimbeni wevalvu. Izilinganiso ezinembile ziqinisekisa ukulingana nokusebenza okufanele ohlelweni lwamapayipi.
5.5 Ubude obungukhiye F
Beka i-caliper ngobude bokhiye ukuze ulinganise ubude F. Lobu bukhulu bubalulekile ukuze uqiniseke ukuthi ukhiye ulingana kahle ne-actuator ye-butterfly valve.
5.5 I-Stem Diameter (Ubude obuseceleni) H
Sebenzisa i-caliper ukuze ulinganise ngokunembile ububanzi besiqu. Lesi silinganiso sibalulekile ukuze kuqinisekiswe ukuthi isiqu silingana kahle phakathi komhlangano wevalve uvemvane.
5.6 Usayizi Wembobo J
Linganisa ubude buka-J ngokubeka i-caliper ngaphakathi kwembobo bese uyinweba iye kolunye uhlangothi. Ukulinganisa ngokunembile ubude J kuqinisekisa ukuhambisana nezinye izingxenye.
5.7 Usayizi Wochungechunge K
Ukuze ulinganise u-K, sebenzisa i-gauge yochungechunge ukuze uthole usayizi oqondile wentambo. Ukulinganisa kahle u-K kuqinisekisa ukucutshungulwa okufanele kanye nokuxhumeka okuphephile.
5.8 Inombolo Yezimbobo L
Bala isamba senani lezimbobo ku-flange yevalvu yevemvane. Lobu bukhulu bubalulekile ukuze kuqinisekiswe ukuthi i-valve uvemvane ingaboshelwa ngokuvikelekile ohlelweni lwamapayipi.
5.9 Isikhungo Sokulawula Ibanga I-PCD
I-PCD imele ububanzi obusuka phakathi nendawo yembobo yokuxhuma phakathi nendawo yepuleti levalvu ukuya embotsheni edayagonali. Beka i-caliper phakathi nendawo yembobo ye-lug futhi uyinwebe phakathi nendawo yembobo ye-diagonal ukuze uyilinganise. Ukulinganisa u-P ngokunembile kuqinisekisa ukuqondanisa nokufakwa okufanele ohlelweni.
6. Amacebiso Awusizo Nokucatshangelwa
6.1. Ukulinganisa kwamathuluzi okungalungile: Qiniseka ukuthi wonke amathuluzi okulinganisa akalwe ngendlela efanele. Amathuluzi anganembile angaholela ekulinganisweni okungalungile.
6.2. Ukungaqondi kahle ngesikhathi sokulinganisa: Ukungaqondi kahle kungaholela ekufundeni okuyiphutha.
6.3. Ukuziba imiphumela yezinga lokushisa: I-akhawunti ngokushintsha kwezinga lokushisa. Izingxenye zensimbi nezenjoloba zinganwetshwa noma zinciphe, kuthinte imiphumela yokulinganisa.
Ukulinganisa ngokunembile izihlalo zamavalvu ovemvane kudinga ukunakwa kwemininingwane nokusebenzisa amathuluzi afanele. Ukulandela lezi zinyathelo kuqinisekisa ukuthi i-valve butterfly ifakwe kahle futhi isebenza ngokuphumelelayo ngaphakathi kwesistimu.
7. Isiphetho
Ukulinganisa ngokunembile ubukhulu bevalve uvemvane kuqinisekisa ukusebenza okuphezulu nobuqotho besistimu. Sebenzisa amathuluzi alinganisiwe ukuze uthole izilinganiso ezinembile. Qondanisa amathuluzi ngendlela efanele ukuze ugweme amaphutha. Cabangela imiphumela yokushisa ezingxenyeni zensimbi. Funa iseluleko sochwepheshe lapho kudingeka. Izilinganiso ezinembile zivimbela izinkinga zokusebenza futhi zithuthukise ukusebenza kahle kwesistimu.