Ukulinganisa ngokuchanekileyoivalvu yebhabhathaneUbungakanani bubalulekile ukuqinisekisa ukuba ilingana kakuhle kwaye ithintele ukuvuza. Kuba iivalvu zeebhabhathane zidlala indima ebalulekileyo kumashishini ahlukeneyo. Kubandakanya ioyile negesi, izityalo zeekhemikhali kunye neenkqubo zokulawula ukuhamba kwamanzi. Ezi valve zebhabhathane zilawula isantya sokuhamba kolwelo, uxinzelelo, izixhobo ezahlulweyo kwaye zilawula ukuhamba komlambo.
Ukwazi indlela yokulinganisa ubungakanani bevalvu yebhabhathane kunokuthintela ukungasebenzi kakuhle kunye neempazamo ezibizayo.
1. Iziseko zeevalvu zebhabhathane
1.1 Yintoni ivalvu yebhabhathane? Isebenza njani ivalvu yebhabhathane?
Iivalvu zebhabhathanelawula ukuhamba kolwelo ngaphakathi kombhobho. Ivalvu yebhabhathane inediski ejikelezayo evumela ulwelo ukuba ludlule xa idiski ijika ihambelana necala lokuhamba. Ukuguqula idiski ngokuthe nkqo ukuya kwicala lokuhamba kuyayimisa indlela yokuhamba.
1.2 Usetyenziso oluqhelekileyo
Iivalvu zeButterfly zisetyenziswa kumashishini ahlukeneyo, kuquka ioyile negesi, izityalo zeekhemikhali kunye neenkqubo zokulawula ukuhamba kwamanzi. Zilawula izinga lokuhamba kwamanzi, zahlula izixhobo kwaye zilawula ukuhamba kwamanzi asezantsi. Ukuguquguquka kwazo kuzenza zilungele iinkonzo eziphakathi, eziphantsi, eziphezulu kunye noxinzelelo.
2. Uyilinganisa njani iValve yeBhabhathane?
2.1 Ubungakanani bobuso ngobuso
Ubungakanani bobuso ngobuso bubhekisa kumgama ophakathi kobuso obubini bevalvu yebhabhathane xa ifakelwe kumbhobho, oko kukuthi, isithuba esiphakathi kwamacandelo amabini eflange. Olu vavanyo luqinisekisa ukuba ivalvu yebhabhathane ifakwe ngokufanelekileyo kwinkqubo yombhobho. Ubungakanani obuchanekileyo bobuso ngobuso bunokugcina ukuthembeka kwenkqubo kwaye kuthintele ukuvuza. Ngokwahlukileyo koko, ubukhulu obungachanekanga bunokukhokelela kwiingozi zokhuseleko.
Phantse yonke imigangatho ichaza ubukhulu beevalvu zebhabhathane ezijongana ngqo. Eyona yamkelwe kakhulu yi-ASME B16.10, echaza ubukhulu beentlobo ezahlukeneyo zeevalvu zebhabhathane, kuquka neevalvu zebhabhathane. Ukunamathela kule migangatho kuqinisekisa ukuhambelana nezinye izinto kwinkqubo ekhoyo yomthengi.
2.2 Uvavanyo loxinzelelo
Umlinganiselo woxinzelelo lwevalvu yebhabhathane ubonisa uxinzelelo oluphezulu olunokumelana nevalvu yebhabhathane ngelixa isebenza ngokukhuselekileyo. Ukuba umlinganiselo woxinzelelo awuchanekanga, ivalvu yebhabhathane enoxinzelelo oluphantsi inokungaphumeleli phantsi kweemeko zoxinzelelo oluphezulu, nto leyo ekhokelela ekungasebenzi kakuhle kwenkqubo okanye kwiingozi zokhuseleko.
Iivalvu zebhabhathane ziyafumaneka kwiireyithingi ezahlukeneyo zoxinzelelo, eziqhele ukuba phakathi kweKlasi ye-150 ukuya kwiKlasi yama-600 (150lb-600lb) ngokwemigangatho ye-ASME. Ezinye iivalvu zebhabhathane ezikhethekileyo zinokumelana noxinzelelo lwe-PN800 okanye ngaphezulu. Khetha uxinzelelo lwenkqubo ngokusekelwe kwiimfuno zesicelo. Ukukhetha umlinganiselo woxinzelelo ochanekileyo kuqinisekisa ukusebenza kakuhle kunye nobomi benkonzo yevalvu yebhabhathane.
3. Ububanzi obuqhelekileyo bevalvu yebhabhathane (DN)
Ububanzi obuqhelekileyo bevalvu yebhabhathane buhambelana nobubanzi bombhobho ewudibanisayo. Ubungakanani obuchanekileyo bevalvu yebhabhathane bubalulekile ekunciphiseni ukulahleka koxinzelelo kunye nokusebenza kakuhle kwenkqubo. Ivalvu yebhabhathane engalinganiyo inokubangela ukunqongophala kokuhamba okanye ukwehla koxinzelelo okugqithisileyo, okuchaphazela ukusebenza kwenkqubo yonke.
Imigangatho efana ne-ASME B16.34 inika isikhokelo sobungakanani beevalvu zebhabhathane, iqinisekisa ukuhambelana kunye nokuhambelana phakathi kwezinto ngaphakathi kwenkqubo. Le migangatho inceda ekukhetheni ubungakanani beevalvu zebhabhathane ezifanelekileyo kwisicelo esithile.
4. Ukulinganisa Ubungakanani Besihlalo
Iisihlalo sevalvu yebhabhathaneUbungakanani bubonisa ukulingana okufanelekileyo kunye nokusebenza kwevalvu yebhabhathane. Ukulinganisa ngokuchanekileyo kuqinisekisa ukuba isihlalo silingana nomzimba wevalvu. Oku kulingana kuthintela ukuvuza kwaye kugcina inkqubo isemgangathweni.
4.1 Inkqubo yokulinganisa
4.1.1. Linganisa ububanzi bomngxuma ofakelwayo (HS): Beka i-caliper emngxunyeni uze ulinganise ngokuchanekileyo ububanzi.
4.1.2. Misela ubude besihlalo (TH): Beka iteyiphu yokulinganisa ezantsi kwesihlalo. Linganisa ngokuthe nkqo ukuya kumphetho ophezulu.
4.1.3. Linganisa ubukhulu besihlalo (CS): Sebenzisa i-caliper ukulinganisa ubukhulu betheya elinye elijikeleze umphetho wesihlalo.
4.1.4. Linganisa ububanzi bangaphakathi (ID) besihlalo sevalvu: Bamba i-micrometer kumgca osembindini wesihlalo sevalvu yebhabhathane.
4.1.5. Chonga ububanzi bangaphandle (OD) besihlalo sevalvu: Beka i-caliper kumda wangaphandle wesihlalo sevalvu. Yisolule ukuze ulinganise ububanzi bangaphandle.
5. Uhlalutyo oluneenkcukacha lweemilinganiselo zevalvu yebhabhathane
5.1 Ukuphakama kwevalvu yebhabhathane A
Ukuze ulinganise ubude u-A, beka i-caliper okanye i-tape measure ekuqaleni kwesiphelo sevalvu yebhabhathane uze ulinganisele phezulu kwesiqu sevalvu. Qinisekisa ukuba umlinganiselo ugubungela ubude bonke ukusuka ekuqaleni komzimba wevalvu ukuya ekupheleni kwesiqu sevalvu. Olu bukhulu lubalulekile ekumiseleni ubungakanani bevalvu yebhabhathane kwaye lukwabonelela ngereferensi yendlela yokugcina indawo yevalvu yebhabhathane kwinkqubo.
5.2 Ububanzi bepleyiti yevalvu B
Ukulinganisa ububanzi bepleyiti yevalvu u-B, sebenzisa i-caliper ukulinganisa umgama ukusuka kumphetho wepleyiti yevalvu, unike ingqalelo ekudluleni embindini wepleyiti yevalvu. Incinci kakhulu iya kuvuza, inkulu kakhulu iya kwandisa i-torque.
5.3 Ubukhulu bomzimba wevalvu C
Ukuze ulinganise ubukhulu bomzimba wevalvu u-C, sebenzisa i-caliper ukuze ulinganise umgama emzimbeni wevalvu. Ukulinganisa ngokuchanekileyo kuqinisekisa ukulingana nokusebenza kakuhle kwenkqubo yemibhobho.
5.5 Ubude beqhosha F
Beka i-caliper kubude besitshixo ukuze ulinganise ubude F. Olu bukhulu lubalulekile ukuqinisekisa ukuba isitshixo sihambelana ngokufanelekileyo ne-actuator ye-butterfly valve.
5.5 Ububanzi besiqu (Ubude becala) H
Sebenzisa i-caliper ukulinganisa ngokuchanekileyo ububanzi besiqu. Olu vavanyo lubalulekile ukuqinisekisa ukuba isiqu singena kakuhle kwindibano yevalvu yebhabhathane.
Ubungakanani beHole obuyi-5.6 J
Linganisa ubude buka-J ngokubeka i-caliper ngaphakathi komngxuma uze uyinwebise kwelinye icala. Ukulinganisa ngokuchanekileyo ubude buka-J kuqinisekisa ukuhambelana nezinye izinto.
5.7 Ubungakanani boMsonto K
Ukuze ulinganise u-K, sebenzisa i-thread gauge ukuze ufumane ubungakanani obuchanekileyo bomsonto. Ukulinganisa u-K ngokuchanekileyo kuqinisekisa ukufakwa komsonto ngokufanelekileyo kunye noqhagamshelo olukhuselekileyo.
5.8 Inani leeHole L
Bala inani lilonke lemingxunya kwi-flange yevalvu yebhabhathane. Olu bukhulu lubalulekile ukuqinisekisa ukuba ivalvu yebhabhathane inokubotshelelwa ngokuqinileyo kwinkqubo yemibhobho.
5.9 Iziko loLawulo loMgama wePCD
I-PCD imele ububanzi ukusuka embindini womngxuma wokudibanisa phakathi kwepleyiti yevalvu ukuya kumngxuma oxwesileyo. Beka i-caliper embindini womngxuma wokuluka kwaye uyinwebe embindini womngxuma oxwesileyo ukuze ulinganise. Ukulinganisa ngokuchanekileyo i-P kuqinisekisa ukulungelelaniswa kunye nokufakwa okufanelekileyo kwinkqubo.
6. Iingcebiso Ezisebenzayo Nezinto Omele Uziqwalasele
6.1. Ukulinganiswa kwezixhobo okungachanekanga: Qinisekisa ukuba zonke izixhobo zokulinganisa zilinganiswe ngokufanelekileyo. Izixhobo ezingachanekanga zinokubangela ukulinganiswa okungachanekanga.
6.2. Ukungalingani ngexesha lokulinganisa: Ukungalingani kunokubangela ukufundwa okungalunganga.
6.3. Ukungahoyi imiphumo yobushushu: Cinga ngotshintsho lobushushu. Izixhobo zesinyithi nerabha zinokukhula okanye zinciphe, nto leyo echaphazela iziphumo zokulinganisa.
Ukulinganisa ngokuchanekileyo izihlalo zeevalvu zeebhabhathane kufuna ingqalelo kwiinkcukacha kunye nokusebenzisa izixhobo ezifanelekileyo. Ukulandela la manyathelo kuqinisekisa ukuba ivalvu yeebhabhathane ifakwe ngokufanelekileyo kwaye isebenza ngokufanelekileyo ngaphakathi kwenkqubo.
7. Isiphelo
Ukulinganisa ngokuchanekileyo ubukhulu bevalvu yebhabhathane kuqinisekisa ukusebenza kakuhle kunye nokuthembeka kwenkqubo. Sebenzisa izixhobo ezilinganisiweyo ukuze ulinganise ngokuchanekileyo. Lungelelanisa izixhobo ngokufanelekileyo ukuze uphephe iimpazamo. Cinga ngemiphumo yobushushu kwiindawo zesinyithi. Funa iingcebiso zobungcali xa kuyimfuneko. Ukulinganisa ngokuchanekileyo kuthintela iingxaki zokusebenza kwaye kuphucule ukusebenza kakuhle kwenkqubo.