Litekanyo tsa lipeipi tsa tšepe

Lipeipi tsa tšepeli arotsoe ka liphaephe tse chitja, tse sekoere, tse khutlonnetsepa le tse nang le sebōpeho se khethehileng; ka thepa ho kena liphaepheng tsa tšepe tse entsoeng ka carbon, lipeipi tsa tšepe tse nang le alloy e tlaase, lipeipi tsa tšepe tse motsoako, le lipeipi tse kopantsoeng; le ka ho kenya liphaephe tse tsamaisang liphaephe, meaho ea boenjiniere, lisebelisoa tsa mocheso, liindasteri tsa petrochemical, tlhahiso ea mechine, ho cheka ha jeoloji, le lisebelisoa tsa khatello e phahameng. Ka mokhoa oa tlhahiso, li arotsoe ka liphaephe tsa tšepe tse se nang moeli le lipeipi tsa tšepe tse cheselitsoeng. Liphaephe tsa tšepe tse se nang moroallo li arotsoe hape ka mefuta e cheselitsoeng ka mocheso le e batang (e huloang), ha lipeipi tsa tšepe tse cheselitsoeng li arotsoe ka liphaephe tse otlolohileng tsa seam le liphaephe tse cheselitsoeng ka seam spiral.

 

Ho na le mekhoa e mengata ea ho emela likarolo tsa pipe dimensional. Ka tlase ke litlhaloso bakeng sa litekanyo tsa lipeipi tse sebelisoang hangata: NPS, DN, OD le Kemiso.

(1) NPS (Boemo ba Pipe e Nominang)

NPS ke maemo a Amerika Leboea bakeng sa lipeipi tse phahameng/tse tlase le tse phahameng/mocheso o tlase. Ke nomoro e senang tekanyo e sebelisoang ho bolela boholo ba liphaephe. Nomoro e latelang NPS e bontša boholo ba phala e tloaelehileng.

NPS e ipapisitse le sistimi ea pejana ea IPS (Iron Pipe Size). Sistimi ea IPS e thehiloe ho khetholla boholo ba liphaephe, ka litekanyo tse bonts'itsoeng ka lisenthimithara tse emelang bophara ba ka hare bo ka bang teng. Ka mohlala, phaephe ea IPS 6" e bontša bophara ba ka hare bo haufi le lisenthimithara tse 6. Basebedisi ba ile ba qala ho bua ka liphaephe e le lipeipi tse 2-inch, 4-inch, kapa 6-inch.

 

(2) Nominal Diameter DN (Diameter Nominal)

Nominal Diameter DN: Kemelo e 'ngoe bakeng sa bophara ba lebitso (bore). E sebelisoa litsamaisong tsa liphaephe e le tlhaku e kopantseng tlhaku-nomoro, e nang le litlhaku DN tse lateloang ke palo e felletseng e se nang litekanyo. Ho lokela ho hlokomeloa hore DN nominal bore ke nomoro e chitja e loketseng bakeng sa litšupiso, e nang le kamano e hlephileng feela le boholo ba 'nete ba tlhahiso. Nomoro e latelang DN hangata e lekantsoe ka limilimithara (mm). Ka litekanyetso tsa Sechaena, bophara ba liphaephe hangata bo hlalosoa e le DNXX, joalo ka DN50.

Bophahamo ba liphaephe bo kenyelletsa bophara ba kantle (OD), bophara ba kahare (ID), le bophara ba lebitso (DN/NPS). Bophahamo ba lebitso (DN / NPS) ha bo tsamaisane le bophara ba sebele ba ka ntle kapa bo ka hare ba phala. Nakong ea tlhahiso le ho kenya, bophara ba ka ntle bo lekanang le botenya ba lebota bo tlameha ho khethoa ho latela litlhaloso tse tloaelehileng ho bala bophara bo ka hare ba pipe.

 

(3) Bophara ba Kantle (OD)

Outer Diameter (OD): Letšoao la bophara ba ka ntle ke Φ, 'me le ka hlalosoa e le OD. Lefatšeng ka bophara, liphaephe tsa tšepe tse sebelisetsoang ho tsamaisa mokelikeli li atisa ho aroloa ka lihlopha tse peli tsa bophara ba ka ntle: Letoto la A (li-diameter tse kholoanyane tsa ka ntle, tsa moemphera) le Series B (li-diameter tse nyenyane tse ka ntle, metric).

Ho na le letoto le lengata la lipeipi tsa tšepe tse bophara ba kantle lefatšeng ka bophara, joalo ka ISO (Mokhatlo oa Machabeng oa Boemo), JIS (Japan), DIN (Jeremane), le BS (UK).

 

(4) Kemiso ea Botenya ba Lebota la Pipe

Ka March 1927, Komiti ea Maemo ea Amerika e ile ea etsa lipatlisiso tsa indasteri 'me ea hlahisa li-increments tse nyenyane pakeng tsa lihlopha tse peli tsa motheo tsa lebota la lipeipi. Sistimi ena e sebelisa SCH ho supa botenya ba liphaephe.

 

 EHONG TŠEPILE--litekanyo tsa lipeipi tsa tšepe