Ho lekanya ka nepovalafo ea serurubeleboholo bo bohlokoa ho netefatsa hore e lekana hantle le ho thibela ho dutla ha metsi. Hobane li-valve tsa lirurubele li bapala karolo ea bohlokoa liindastering tse fapaneng. Ho kenyeletsoa oli le khase, limela tsa lik'hemik'hale le litsamaiso tsa taolo ea phallo ea metsi. Li-valve tsena tsa lirurubele li laola sekhahla sa phallo ea mokelikeli, khatello, lisebelisoa tse arohaneng le ho laola phallo e theohelang.
Ho tseba ho lekanya boholo ba valve ea serurubele ho ka thibela ho se sebetse hantle ha ts'ebetso le liphoso tse turang.
1. Metheo ea li-valve tsa serurubele
1.1 Valve ea serurubele ke eng? Valve ea serurubele e sebetsa joang?
Li-valve tsa serurubelelaola motsamao oa maro ka har'a phaephe. Valve ea serurubele e na le diski e potolohang e lumellang mokelikeli ho feta ha diski e reteleha ho ea ka lehlakoreng le leng la phallo. Ho fetola diski ka lehlakoreng le leng ho ea ka lehlakoreng le leng la phallo ho emisa phallo.
1.2 Litšebeliso tse tloaelehileng
Li-valve tsa serurubele li sebelisoa liindastering tse fapaneng, ho kenyeletsoa oli le khase, lifeme tsa lik'hemik'hale le litsamaiso tsa taolo ea phallo ea metsi. Li laola sekhahla sa phallo, li arola lisebelisoa le ho laola phallo e theohelang. Ho tenyetseha ha tsona ho li etsa hore li lokele litšebeletso tse mahareng, tse tlase, tse phahameng tsa mocheso le tsa khatello.
2. U lekanya Valve ea Serurubele Joang?
2.1 Boholo ba sefahleho le sefahleho
Boholo ba sefahleho le sefahleho bo bolela sebaka se pakeng tsa lifahleho tse peli tsa valve ea serurubele ha e kentsoe ka phaepheng, ke hore, sebaka se pakeng tsa likarolo tse peli tsa flange. Tekanyo ena e netefatsa hore valve ea serurubele e kentsoe hantle tsamaisong ea phaephe. Litekanyo tse nepahetseng tsa sefahleho le sefahleho li ka boloka botšepehi ba sistimi le ho thibela ho lutla. Ka lehlakoreng le leng, litekanyo tse sa nepahalang li ka lebisa likotsing tsa polokeho.
Hoo e ka bang maemo ohle a totobatsa litekanyo tsa li-valve tsa serurubele tse shebaneng. E amoheloang haholo ke ASME B16.10, e hlalosang litekanyo tsa mefuta e fapaneng ea li-valve tsa serurubele, ho kenyeletsoa le li-valve tsa serurubele. Ho khomarela maemo ana ho netefatsa hore ho lumellana le likarolo tse ling tsamaisong e teng ea moreki.
2.2 Tekanyetso ea khatello
Tekanyo ea khatello ea 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 e nang le khatello e tlase e ka 'na ea hlōleha tlas'a maemo a khatello e phahameng, e leng se fellang ka ho hloleha ha sistimi 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 sistimi ho latela litlhoko tsa ts'ebeliso. Ho khetha tekanyo e nepahetseng ea khatello ho netefatsa ts'ebetso e ntle ka ho fetisisa le bophelo ba ts'ebeletso ea valve ea serurubele.
3. Bophara ba lebitso la valve ea serurubele (DN)
Bophara bo tloaelehileng ba valve ea serurubele bo tsamaellana le bophara ba phaephe eo e e hokelang. Boholo bo nepahetseng ba valve ea serurubele bo bohlokoa ho fokotsa tahlehelo ea khatello le katleho ea sistimi. Valve ea serurubele e sa lekanang e ka baka thibelo ea phallo kapa ho theoha ho feteletseng ha khatello, e leng se amang ts'ebetso ea sistimi eohle.
Maemo a kang ASME B16.34 a fana ka tataiso bakeng sa boholo ba valve ea serurubele, ho netefatsa ho tsitsana le ho lumellana pakeng tsa likarolo tse ka har'a sistimi. Maemo ana a thusa ho khetha boholo bo loketseng ba valve ea serurubele bakeng sa ts'ebeliso e itseng.
4. Boholo ba Setulo bo Lekanyetsoang
Thesetulo sa valve ea serurubeleBoholo bo etsa qeto ea hore na valve ea serurubele e lekana hantle hakae le hore na e sebetsa hantle hakae. Tekanyo e nepahetseng e etsa bonnete ba hore setulo se lekana 'mele oa valve. Tekanyo ena e thibela ho lutla 'me e boloka botsitso ba sistimi.
4.1 Mokhoa oa ho Lekanya
4.1.1. Lekanya bophara ba lesoba le hokelang (HS): Beha caliper ka hara lesoba mme o lekanye bophara ka nepo.
4.1.2. Fumana bophahamo ba setulo (TH): Beha teipi e lekanyang tlase setulong. Lekanya ka ho otloloha ho ya fihla pheletsong e ka hodimo.
4.1.3. Lekanya botenya ba setulo (CS): Sebelisa caliper ho lekanya botenya ba lera le le leng ho potoloha bohale ba setulo.
4.1.4. Lekanya bophara ba kahare (ID) ba setulo sa valve: Tšoara micrometer moleng o bohareng oa setulo sa valve ea serurubele.
4.1.5. Fumana bophara ba kantle (OD) ba setulo sa valve: Beha caliper pheletsong e ka ntle ea setulo sa valve. E otlolle ho lekanya bophara ba kantle.
5. Tlhaloso e qaqileng ea litekanyo tsa valve ea serurubele
5.1 Bophahamo ba valve ea serurubele A
Ho lekanya bolelele ba A, beha caliper kapa tekanyo ea theipi qalong ea sekoahelo sa pheletso ea valve ea serurubele 'me u e lekanye ho ea holimo ho kutu ea valve. Etsa bonnete ba hore tekanyo e akaretsa bolelele bohle ho tloha qalong ea 'mele oa valve ho isa qetellong ea kutu ea valve. Tekanyo ena e bohlokoa ho fumana boholo ba valve ea serurubele ka kakaretso 'me e boetse e fana ka tšupiso 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 ela 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 'mele oa valve C, sebelisa caliper ho lekanya sebaka 'meleng oa valve. Litekanyo tse nepahetseng li netefatsa hore e lekana hantle ebile e sebetsa hantle tsamaisong ea liphaephe.
5.5 Bolelele ba Senotlolo F
Beha caliper ho latela bolelele ba senotlolo ho lekanya bolelele ba F. Tekanyo ena e bohlokoa ho netefatsa hore senotlolo se lumellana hantle le actuator ea valve ea serurubele.
Bophara ba kutu ea 5.5 (Bolelele ba lehlakore) H
Sebelisa caliper ho lekanya bophara ba kutu ka nepo. Tekanyo ena e bohlokoa ho netefatsa hore kutu e lekana hantle ka har'a kopano ea valve ea serurubele.
Boholo ba Lesoba la 5.6 J
Lekanya bolelele ba J ka ho beha caliper ka hare ho lesoba le ho le atolosa ka lehlakoreng le leng. Ho lekanya bolelele ba J ka nepo ho netefatsa hore e lumellana le likarolo tse ling.
5.7 Boholo ba Khoele K
Ho lekanya K, sebedisa tekanyo ya khoele ho fumana boholo bo nepahetseng ba khoele. Ho lekanya K ka nepo ho netefatsa ho kenngwa ha khoele hantle le kgokelo e sireletsehileng.
5.8 Palo ea Masoba L
Bala palo yohle ya masoba a lebaneng la valve ya serurubele. Tekanyo ena e bohlokwa ho netefatsa hore valve ya serurubele e ka tlangwa ka bolt e tiileng tsamaisong ya diphaephe.
5.9 Setsi sa Taolo sa PCD se hole
PCD e emela bophara ho tloha bohareng ba lesoba la kgokelo ho pholletsa le bohareng ba poleiti ya valve ho ya lesobeng le otlolohileng. Beha caliper bohareng ba lesoba la lug mme o e atolose bohareng ba lesoba le otlolohileng ho lekanya. Ho lekanya P ka nepo ho netefatsa ho lekalekana le ho kenngwa hantle tsamaisong.
6. Malebela le Lintho Tse Sebetsang
6.1. Tekanyo e fosahetseng ea lisebelisoa: Etsa bonnete ba hore lisebelisoa tsohle tsa ho lekanya li lekantsoe hantle. Lisebelisoa tse fosahetseng li ka lebisa litekanyong tse fosahetseng.
6.2. Ho se lekane hantle nakong ea ho lekanya: Ho se lekane hantle ho ka lebisa ho lipalo tse fosahetseng.
6.3. Ho hlokomoloha ditlamorao tsa mocheso: Ela hloko diphetoho tsa mocheso. Dikarolo tsa tshepe le rabara di ka atoloha kapa tsa honyela, mme tsa ama diphetho tsa tekanyo.
Ho lekanya ka nepo litulo tsa li-valve tsa serurubele ho hloka tlhokomelo e kholo le ho sebelisa lisebelisoa tse loketseng. Ho latela mehato ena ho netefatsa hore valve ea serurubele e kentsoe hantle 'me e sebetsa ka katleho ka har'a sistimi.
7. Qetello
Ho lekanya ka nepo litekanyo tsa valve ea serurubele ho netefatsa ts'ebetso e ntle le botšepehi ba sistimi. Sebelisa lisebelisoa tse leka-lekaneng bakeng sa litekanyo tse nepahetseng. Lokisa lisebelisoa hantle ho qoba liphoso. Nahana ka litlamorao 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.