Ho metha ka neposerurubele belofoboholo bo bohlokoa ho netefatsa ho lekana hantle le ho thibela ho lutla. Hobane li-valve tsa serurubele li phetha karolo ea bohlokoa liindastering tse sa tšoaneng. Ho kenyeletsoa oli le khase, limela tsa lik'hemik'hale le mekhoa ea ho laola phallo ea metsi. Li-valve tsena tsa serurubele li laola sekhahla sa phallo ea mokelikeli, khatello, lisebelisoa tse arohaneng le ho laola phallo ea metsi.
Ho tseba ho lekanya boholo ba valve ea serurubele ho ka thibela ho se sebetse hantle le liphoso tse theko e boima.
1. Metheo ea li-valve tsa butterfly
1.1 Belofo ea serurubele ke eng? Belofo ea serurubele e sebetsa joang?
Li-valve tsa butterflylaola motsamao wa maro ka hara phaephe. Belofo ea serurubele e na le diski e potolohang e lumellang mokelikeli ho feta ha disc e fetoha e bapileng le tataiso ea phallo. Ho fetola disc perpendicular ho tataiso ea phallo ho emisa ho phalla.
1.2 Lisebelisoa tse tloaelehileng
Li-valve tsa butterfly li sebelisoa liindastering tse sa tšoaneng, ho akarelletsa le oli le khase, limela tsa lik'hemik'hale le mekhoa ea ho laola metsi. Ba laola lebelo la phallo, lisebelisoa tse arohaneng le ho laola phallo ea metsi. Ho feto-fetoha ha tsona ho etsa hore li tšoanelehe bakeng sa litšebeletso tse mahareng, tse tlase, tse phahameng tsa mocheso le khatello.
2. U Tekanya Valofo ea Butterfly Joang?
2.1 Boholo ba sefahleho le sefahleho
Boholo bo shebaneng le sefahleho bo bolela sebaka se pakeng tsa lifahleho tse peli tsa belofo ea serurubele ha e kenngoa phala, ke hore, sebaka se pakeng tsa likarolo tse peli tsa flange. Tekanyo ena e tiisa hore valve ea serurubele e kenngoa hantle tsamaisong ea liphaephe. Litekanyo tse nepahetseng tsa sefahleho li ka boloka botšepehi ba sistimi le ho thibela ho lutla. Ka lehlakoreng le leng, litekanyo tse sa nepahaleng li ka lebisa likotsing tsa polokeho.
Hoo e ka bang litekanyetso tsohle li totobatsa litekanyo tsa sefahleho le sefahleho tsa li-valve tsa serurubele. E amoheloang ka ho fetesisa ke ASME B16.10, e hlalosang boholo ba mefuta e fapaneng ea li-valve tsa serurubele, ho kenyeletsoa li-valve tsa serurubele. Ho khomarela litekanyetso tsena ho netefatsa ho lumellana le likarolo tse ling tsamaisong e teng ea moreki.
2.2 Boemo ba khatello
Khatello ea sekhahla sa valve ea serurubele e bontša khatello e phahameng ka ho fetisisa eo valve ea serurubele e ka e mamellang ha e ntse e sebetsa ka mokhoa o sireletsehileng. Haeba tekanyo ea khatello e fosahetse, valve ea serurubele se nang le khatello e tlaase e ka 'na ea hlōleha tlas'a maemo a khatello e phahameng, e leng se bakang ho hlōleha ha tsamaiso kapa esita le likotsi tsa polokeho.
Li-valve tsa serurubele li fumaneha ka litekanyetso tse fapaneng tsa khatello, tseo ka kakaretso li tlohang ho Sehlopha sa 150 ho isa ho Sehlopha sa 600 (150lb-600lb) ho latela maemo a ASME. Li-valve tse ling tse khethehileng tsa serurubele li ka mamella khatello ea PN800 kapa ho feta. Khetha khatello ea tsamaiso ho latela litlhoko tsa kopo. Ho khetha tekanyo e nepahetseng ea khatello ho netefatsa ts'ebetso e ntle ka ho fetisisa le bophelo ba tšebeletso ea valve ea serurubele.
3. Butterfly valve nominella bophara (DN)
Bophara ba lebitso la valve ea serurubele bo lumellana le bophara ba phala eo e e kopanyang. Tekanyo e nepahetseng ea li-valve tsa serurubele e bohlokoa ho fokotsa tahlehelo ea khatello le ts'ebetso ea sistimi. Sesepa sa serurubele sa boholo bo sa nepahalang se ka baka thibelo ea phallo kapa ho theoha ho feteletseng ha khatello, ho ama ts'ebetso ea sistimi eohle.
Maemo a kang ASME B16.34 a fana ka tataiso bakeng sa boholo ba li-valve tsa serurubele, ho netefatsa botsitso le ho lumellana lipakeng tsa likarolo tse ka har'a sistimi. Litekanyetso tsena li thusa ho khetha boholo bo loketseng ba valve ea serurubele bakeng sa ts'ebeliso e itseng.
4. Ho lekanya Setulo sa Boholo
Thesetulo sa valve ea serurubeleboholo bo etsa qeto ea ho lekana hantle le ts'ebetso ea valve ea serurubele. Tekanyo e nepahetseng e tiisa hore setulo se lumellana le 'mele oa valve. Selekane sena se thibela ho lutla le ho boloka botsitso ba sistimi.
4.1 Mokhoa oa Tekanyo
4.1.1. Lekanya bophara ba lesoba (HS): Beha caliper ka mokoting 'me u lekanye bophara ka nepo.
4.1.2. Etsa qeto ea bophahamo ba setulo (TH): Beha tekanyo ea tepi ka tlase ho setulo. Lekanya ka holimo ho ea holimo.
4.1.3. Lekanya botenya ba setulo (CS): Sebelisa caliper ho lekanya botenya ba lera le le leng ho potoloha moeli oa setulo.
4.1.4. Lekanya bophara ba ka hare (ID) ea setulo sa valve: Tšoara micrometer bohareng ba setulo sa valve ea serurubele.
4.1.5. Etsa qeto ea bophara ba ka ntle (OD) ea setulo sa valve: Beha caliper karolong e ka ntle ea setulo sa valve. E otlolle ho lekanya bophara ba bokantle.
5. Karohano e qaqileng ea litekanyo tsa li-valve tsa serurubele
5.1 Bophahamo ba valve ea Butterfly A
Ho metha bolelele ba A, beha selekanyo sa caliper kapa teipi qalong ea sekoahelo se qetellang sa valve ea serurubele 'me u lekanye ka holimo ho kutu ea valve. Etsa bonnete ba hore tekanyo e akaretsa bolelele bohle ho tloha qalong ea 'mele oa valve ho ea qetellong ea kutu ea valve. Boemo bona bo bohlokoa bakeng sa ho khetholla boholo ba valve ea serurubele 'me e fana ka tlhaloso ea mokhoa oa ho boloka sebaka bakeng sa valve ea serurubele tsamaisong.
5.2 Bophara ba poleiti ea valve B
Ho lekanya bophara ba poleiti ea valve B, sebelisa caliper ho lekanya sebaka ho tloha pheletsong ea poleiti ea valve, u ele hloko ho feta bohareng ba poleiti ea valve. E nyane haholo e tla lutla, e kholo haholo e tla eketsa torque.
5.3 Botenya ba 'mele oa valve C
Ho lekanya botenya ba "valve" C, sebelisa caliper ho lekanya sebaka sa 'mele oa valve. Litekanyo tse nepahetseng li netefatsa ho lekana le ho sebetsa hantle tsamaisong ea liphaephe.
5.5 Bolelele ba Senotlolo F
Beha caliper ka bolelele ba senotlolo ho lekanya bolelele ba F. Boemo bona bo bohlokoa ho netefatsa hore senotlolo se lumellana hantle le serurubele sa valve actuator.
5.5 Stem Diameter (Bolelele ba Mahlakore) H
Sebelisa caliper ho lekanya ka nepo bophara ba stem. Tekanyo ena e bohlokoa ho netefatsa hore kutu e lekana hantle ka har'a kopano ea valve ea serurubele.
5.6 Hole Size J
Lekanya bolelele ba J ka ho beha caliper ka har'a sekoti le ho e fetisetsa ka lehlakoreng le leng. Ho lekanya bolelele ba J ka nepo ho netefatsa ho lumellana le likarolo tse ling.
5.7 Khoele Boholo K
Ho metha K, sebelisa sekala sa khoele ho fumana boholo bo nepahetseng ba khoele. Ho lekanya K ka nepo ho tiisa hore ho khoasoa ho nepahetseng le khokahanyo e sireletsehileng.
5.8 Palo ea Likoti L
Bala palo eohle ea masoba holim'a flange ea serurubele. Boemo bona bo bohlokoa ho netefatsa hore valve ea serurubele e ka koalloa ka mokhoa o sireletsehileng tsamaisong ea liphaephe.
5.9 Setsi sa Taolo ea Distance PCD
PCD e emela bophara ho tloha bohareng ba lesoba la khokahanyo ho ea bohareng ba poleiti ea valve ho ea ho lesoba le diagonal. Beha caliper bohareng ba lesoba la lug 'me u le atolose ho ea bohareng ba lesoba la diagonal ho lekanya. Ho lekanya P ka nepo ho netefatsa ho tsamaisana hantle le ho kenya sistimi.
6. Malebela a Sebetsang le ho Nahana
6.1. Tekanyo ea lisebelisoa e sa nepahalang: Etsa bonnete ba hore lisebelisoa tsohle tsa ho metha li lekantsoe hantle. Lisebelisoa tse sa nepahalang li ka lebisa ho litekanyo tse sa nepahalang.
6.2. Tekanyo e fosahetseng nakong ea ho lekanya: Ho se tsamaisane hantle ho ka lebisa ho baleng ho fosahetseng.
6.3. Ho hlokomoloha liphello tsa mocheso: Akhaonto bakeng sa liphetoho tsa mocheso. Likarolo tsa tšepe le rabara li ka atoloha kapa tsa kotola, tsa ama liphetho tsa tekanyo.
Ho lekanya ka nepo litulo tsa li-valve tsa serurubele ho hloka tlhokomelo ho lintlha le ho sebelisa lisebelisoa tse nepahetseng. Ho latela mehato ena ho tiisa hore valve ea serurubele e kenngoa hantle 'me e sebetsa ka katleho ka har'a tsamaiso.
7. Qetello
Ho lekanya ka nepo litekanyo tsa li-valve tsa serurubele ho netefatsa ts'ebetso e nepahetseng le ts'ebetso ea ts'ebetso. Sebelisa lisebelisoa tse lekantsoeng ho etsa litekanyo tse nepahetseng. Hlophisa lisebelisoa hantle ho qoba liphoso. Nahana ka liphello tsa mocheso likarolong tsa tšepe. Batla keletso ea litsebi ha ho hlokahala. Litekanyo tse nepahetseng li thibela mathata a ts'ebetso le ho ntlafatsa ts'ebetso ea sistimi.