Ukulinganisa ngokuchanekileyoivelufa butterflyubungakanani bubalulekile ukuqinisekisa ukufaneleka ngokufanelekileyo kunye nokuthintela ukuvuza. Kungenxa yokuba izivalo zebhabhathane zinendima ebalulekileyo kumashishini awahlukeneyo. Kubandakanywa ioli kunye negesi, izityalo zemichiza kunye neenkqubo zokulawula ukuhamba kwamanzi. Ezi zivalo zebhabhathane zilawula izinga lokuqukuqela kwamanzi, uxinzelelo, izixhobo ezahlukeneyo kwaye zilawula ukuhamba komsinga.
Ukwazi ukulinganisa ubungakanani bevalve yebhabhathane kunokuthintela ukungasebenzi kakuhle kunye neempazamo ezibiza kakhulu.
1. Iziseko zevalve yebhabhathane
1.1 Yintoni ivalve yebhabhathane? Isebenza njani ivalve yebhabhathane?
Iivalve zebhabhathanelawula intshukumo yolwelo ngaphakathi kombhobho. Ivalve yebhabhathane inediski ejikelezayo evumela ulwelo ukuba ludlule xa idiski ijika ihambelane necala lokuhamba. Ukuguqula i-disc perpendicular ukuya kwicala lokuhamba kumisa ukuhamba.
1.2 Izicelo eziqhelekileyo
Iivalvu zebhabhathane zisetyenziswa kumashishini ahlukeneyo, kubandakanywa i-oyile negesi, izityalo zemichiza kunye neenkqubo zokulawula ukuhamba kwamanzi. Balawula umyinge wokuhamba, izixhobo ezahlukeneyo kwaye balawule ukuhamba komlambo. Ukuguquguquka kwabo kubenza bafanelekele iinkonzo eziphakathi, eziphantsi, eziphezulu kunye noxinzelelo.
2. Uyilinganisa njani iValufa yebhabhathane?
2.1 Ubungakanani bobuso ngobuso
Ubungakanani bobuso ngobuso bubhekisa kumgama phakathi kobuso obubini bevalve yebhabhathane xa ifakwe kumbhobho, oko kukuthi, isithuba phakathi kwamacandelo amabini eflange. Lo mlinganiselo uqinisekisa ukuba i-valve yebhabhathane ifakwe ngokufanelekileyo kwinkqubo yombhobho. Imilinganiselo echanekileyo yobuso ngobuso inokugcina ingqibelelo yenkqubo kwaye ithintele ukuvuza. Ngokuchasene noko, imilinganiselo engachanekanga inokukhokelela kwiingozi zokhuseleko.
Phantse yonke imigangatho ichaza imilinganiselo yobuso ngobuso yeevalvu zebhabhathane. Eyona yamkelwe ngokubanzi yi-ASME B16.10, echaza imilinganiselo yeentlobo ezahlukeneyo zeevalvu zebhabhathane, kubandakanywa izivalo zebhabhathane. Ukuthotyelwa kwale migangatho kuqinisekisa ukuhambelana namanye amacandelo kwinkqubo ekhoyo yomthengi.
2.2 Iqondo loxinzelelo
Iqondo loxinzelelo lwevalve yebhabhathane libonisa olona xinzelelo luphezulu ivalve yebhabhathane inokumelana nayo ngelixa isebenza ngokukhuselekileyo. Ukuba ukulinganiswa koxinzelelo akuchanekanga, i-valve ye-butterfly ephantsi yoxinzelelo inokungaphumeleli phantsi kweemeko zoxinzelelo oluphezulu, okubangela ukusilela kwenkqubo okanye imingcipheko yokhuseleko.
Iivalve zebhabhathane ziyafumaneka kwiintlobo ezahlukeneyo zoxinzelelo, ezisuka kwiKlasi ye-150 ukuya kwiKlasi 600 (150lb-600lb) ngokwemigangatho ye-ASME. Ezinye iivalve zebhabhathane ezikhethekileyo zinokumelana noxinzelelo lwe-PN800 okanye ngaphezulu. Khetha uxinzelelo lwenkqubo ngokusekelwe kwiimfuno zesicelo. Ukukhetha ukulinganiswa koxinzelelo oluchanekileyo kuqinisekisa ukusebenza kakuhle kunye nobomi benkonzo yevalve yebhabhathane.
3. Ivalve yebhabhathane idiameter yegama (DN)
I-diameter ekhethiweyo yevalve yebhabhathane ihambelana nobubanzi bombhobho odibanisayo. Ukulinganisa okuchanekileyo kwevalve yebhabhathane kubalulekile ekunciphiseni ilahleko yoxinzelelo kunye nokusebenza kakuhle kwenkqubo. Ivalve yebhabhathane engachanekanga inokubangela uthintelo lokuhamba okanye ukwehla koxinzelelo olugqithisileyo, okuchaphazela ukusebenza kwenkqubo yonke.
Imigangatho efana ne-ASME B16.34 ibonelela ngesikhokelo sobungakanani bevalvu yebhabhathane, iqinisekisa ukuhambelana kunye nokuhambelana phakathi kwamalungu ngaphakathi kwenkqubo. Le migangatho inceda ukukhetha ubungakanani bevalve yebhabhathane efanelekileyo kwisicelo esithile.
4. Ubungakanani beSitulo sokulinganisa
Iisitulo butterfly valveubungakanani bumisela ukufaneleka okufanelekileyo kunye nokusebenza kwevalve yebhabhathane. Umlinganiselo ochanekileyo uqinisekisa ukuba isitulo silingana nomzimba wevalvu. Oku kuhambelana kuthintela ukuvuza kunye nokugcina ingqibelelo yenkqubo.
4.1 Inkqubo yoMlinganiso
4.1.1. Ukulinganisa i-diameter yokunyuka komngxuma (HS): Beka i-caliper emngxunyeni kwaye ulinganise ngokuchanekileyo ububanzi.
4.1.2. Qinisekisa ubude besihlalo (TH): Beka iteyiphu yokulinganisa phantsi kwesihlalo. Ukulinganisa ngokuthe nkqo ukuya kungqameko oluphezulu.
4.1.3. Ukulinganisa ubukhulu besihlalo (CS): Sebenzisa i-caliper ukulinganisa ubukhulu bomaleko omnye ojikeleze umda wesihlalo.
4.1.4. Ukulinganisa i-diameter yangaphakathi (ID) yesitulo sevalve: Bamba i-micrometer kumgca osembindini wesitulo sevalve yebhabhathane.
4.1.5. Qinisekisa i-diameter yangaphandle (OD) yesitulo sevalve: Beka i-caliper kumphetho ongaphandle wesitulo sevalve. Yolule ukulinganisa i-diameter yangaphandle.
5. Ucazululo oluneenkcukacha lwemilinganiselo yevalvu yebhabhathane
5.1 Umphakamo wevalve yebhabhathane A
Ukulinganisa ubude A, beka i-caliper okanye iteyiphu yokulinganisa iteyiphu ekuqaleni komphetho wevalve yebhabhathane kwaye ulinganise umphezulu wesiqu sevalve. Qinisekisa ukuba umlinganiselo ugubungela ubude bonke ukusuka ekuqaleni komzimba wevalvu ukuya ekupheleni kwesiqu sevalvu. Lo mlinganiso ubalulekile ekumiseleni ubungakanani bevalve yebhabhathane ngokubanzi kwaye ikwabonelela ngereferensi yendlela yokugcinwa kwevalve yebhabhathane kwinkqubo.
5.2 Idayamitha yepleyiti yevalvu B
Ukulinganisa ipleyiti yevalve idiameter B, sebenzisa i-caliper ukulinganisa umgama ukusuka kumda wepleyiti yevalve, ubeke ingqalelo ekudluleni kumbindi wepleyiti yevalve. Incinci kakhulu iya kuvuza, inkulu kakhulu iya kwandisa i-torque.
5.3 Ubukhulu bomzimba wevalvu C
Ukulinganisa ubukhulu bomzimba wevalve C, sebenzisa i-caliper ukulinganisa umgama kumzimba wevalvu. Imilinganiselo echanekileyo iqinisekisa ukufaneleka kunye nokusebenza ngokufanelekileyo kwinkqubo yokubhobhoza.
5.5 Ubude obuphambili F
Beka i-caliper ecaleni kobude besitshixo ukulinganisa ubude F. Lo mlinganiso ubalulekile ukuqinisekisa ukuba isitshixo singena ngokufanelekileyo kwi-actuator yevalve yebhabhathane.
5.5 I-Stem Diameter (Ubude obusecaleni) H
Sebenzisa i-caliper ukulinganisa ngokuchanekileyo ububanzi besiqu. Lo mlinganiselo ubalulekile ukuqinisekisa ukuba isikhondo singena ngokufanelekileyo kwindibano yevalve yebhabhathane.
5.6 Ubungakanani bomngxuma J
Ukulinganisa ubude be-J ngokubeka i-caliper ngaphakathi komngxuma kwaye uyandise kwelinye icala. Ukulinganisa ngokuchanekileyo ubude be-J buqinisekisa ukuhambelana namanye amacandelo.
5.7 Ubungakanani boMsonto K
Ukulinganisa u-K, sebenzisa igeyiji yomsonto ukujonga ubungakanani obuchanekileyo bomsonto. Ukulinganisa ngokufanelekileyo i-K iqinisekisa ukuthungwa okufanelekileyo kunye noqhagamshelwano olukhuselekileyo.
5.8 Inani leMingxunya L
Bala inani lilonke lemingxuma kwiflange yevalve yebhabhathane. Lo mlinganiso ubalulekile ukuqinisekisa ukuba ivalve yebhabhathane ibotshwe ngokukhuselekileyo kwinkqubo yemibhobho.
5.9 IZiko loLawulo lomgama kwiPCD
I-PCD imele i-diagonal ukusuka kumbindi womngxuma woqhagamshelo kumbindi wepleyiti yevalve ukuya kumngxunya wediagonal. Beka i-caliper embindini womngxuma we-lug kwaye uyandise kumbindi womngxuma we-diagonal ukulinganisa. Ukulinganisa ngokuchanekileyo i-P kuqinisekisa ukulungelelaniswa okufanelekileyo kunye nokufakwa kwisistim.
6. Iingcebiso ezisebenzayo kunye neengqwalasela
6.1. Ulungelelwaniso lwesixhobo olungachanekanga: Qinisekisa ukuba zonke izixhobo zokulinganisa zilinganiswe ngokufanelekileyo. Izixhobo ezingachanekanga zinokukhokelela kwimilinganiselo engachanekanga.
6.2. Ukungalungelelani kakuhle ngexesha lokulinganisa: Ukungahambi kakuhle kunokukhokelela ekufundeni okuphosakeleyo.
6.3. Ukungahoyi iziphumo zobushushu: Iakhawunti yotshintsho lobushushu. Amalungu esinyithi kunye neerubha angakwazi ukwandisa okanye isivumelwano, esichaphazela iziphumo zokulinganisa.
Ukulinganisa ngokuchanekileyo izihlalo zevalve yebhabhathane kufuna ingqalelo kwiinkcukacha kunye nokusebenzisa izixhobo ezifanelekileyo. Ukulandela la manyathelo kuqinisekisa ukuba i-valve butterfly ifakwe ngokufanelekileyo kwaye isebenza ngokufanelekileyo ngaphakathi kwenkqubo.
7. Isiphelo
Ukulinganisa ngokuchanekileyo imilinganiselo yevalve yebhabhathane iqinisekisa ukusebenza ngokupheleleyo kunye nokuthembeka kwenkqubo. Sebenzisa izixhobo ezilinganisiweyo ukwenza imilinganiselo echanekileyo. Lungelelanisa izixhobo ngokufanelekileyo ukuphepha iimpazamo. Cinga ngemiphumo yobushushu kumalungu esinyithi. Funa iingcebiso zengcali xa kuyimfuneko. Imilinganiselo echanekileyo ithintela iingxaki zokusebenza kunye nokuphucula ukusebenza kakuhle kwenkqubo.