Litlhaku tse 3 tsa Pipe ea tšepe:
Tlhaloso e felletseng bakeng sa boholo ba phala ea tšepe e kenyelletsa bophara ba kantle (OD), botenya ba lebota (WT), bolelele ba phala (Ka tloaelo 20 ft 6 metres, kapa 40 ft 12 metres).

Ka litlhaku tsena re ne re ka bala boima ba phala, hore na peipi ea khatello e kae e ka mamella, le litšenyehelo ka leoto ka leng kapa mithara.
Ka hona, ke kahoo kamehla re hlokang ho tseba boholo bo nepahetseng ba pipe.

Chate ea Litekanyo tsa Pipe ea tšepe

Pipe Schedule Chart unit ka mm joalo ka tlase, sheba mona bakeng sa Chate ea Kemiso ea Pipe ka inch.

Litekanyetso tsa tekanyo bakeng sa pipe ea tšepe
Ho na le litekanyetso tse fapaneng tsa ho hlalosa boholo ba phala ea tšepe, OD le botenya ba lerako. Haholo-holo ke ASME B 36.10, ASME B 36.19.

Litlhaloso tsa maemo tse amehang ASME B 36.10M le B 36.19M
Ka bobeli ASME B36.10 le B36.19 ke litekanyetso tse tloaelehileng bakeng sa litekanyo tsa phala ea tšepe le lisebelisoa.

ASME B36.10M
Tekanyetso e akaretsa maemo a lipeipi tsa tšepe litekanyo le boholo. Liphaephe tsena li kenyelletsa mefuta e sa tsitsang kapa e cheselitsoeng, 'me e sebelisoa ka mocheso o phahameng kapa o tlase le likhatello.
Pipe e khetholloang ho tloha ho tube (Pipe vs Tube), mona phala e khethehileng bakeng sa tsamaiso ea liphaephe, maro (Oli le khase, metsi, slurry) phetiso. Sebelisa maemo a ASME B 36.10M.
Boemong bona, phala ea Outer Diameter e nyane ho feta 12.75 ho (NPS 12, DN 300), bophara ba lipeipi bo boholo ho feta NPS (Nominal Pipe Size) kapa DN (Nominal Diameter).

Ka letsohong, bakeng sa litekanyo tsa li-tube tsa tšepe, bophara ba 'nete ba kantle bo tšoana le nomoro ea phala bakeng sa boholo bohle.

Lenane la Litekanyo tsa Pipe ea tšepe ke eng?
Lenane la lipeipi tsa tšepe ke mokhoa o bontšang o emeloang ke ASME B 36.10, hape o sebelisoa ho litekanyetso tse ling tse ngata, tse tšoailoeng ka "Sch". Sch ke khutsufatso ea kemiso, ka kakaretso e hlahang ho American steel pipe standard, e leng sehlongoapele sa nomoro ea letoto. Mohlala, Sch 80, 80 ke nomoro ea phala ho tloha chate/tafoleng ASME B 36.10.

"Kaha peipi ea tšepe e sebelisoang haholo ke ho tsamaisa maro ka tlas'a khatello, kahoo bophara ba eona bo ka hare ke boholo ba bona bo boima. Boholo bona bo bohlokoa bo nkuoa joalo ka bore ea lebitso (NB). Ka hona, haeba phala ea tšepe e tsamaisa metsi ka khatello, ho bohlokoa haholo hore phala e be le matla a lekaneng le botenya bo lekaneng ba lebota. Kahoo botenya ba lebota bo hlalositsoe Licheleteng, ho bolelang kemiso ea liphaephe, e khutsufalitsoeng e le SCH. Mona ASME ke tekanyetso le tlhaloso e fanoeng bakeng sa kemiso ea liphaephe. ​​"

Foromo ea kemiso ea pipe:
Sch.=P/[ó]t×1000
P ke khatello e entsoeng, likarolo tse ho MPa;
[ó] t ke Khatello e lumelletsoeng ea thepa tlas'a mocheso oa moralo, Units in MPa.

SCH e bolela'ng bakeng sa litekanyo tsa lipeipi tsa tšepe?
Ha re hlalosa parameter ea tšepe ea tšepe, hangata re sebelisa kemiso ea phala, Ke mokhoa o emelang botenya ba lerako la phala ka palo. Lenaneo la liphaephe ( sch. ) ha se botenya ba lebota, empa ke letoto la botenya ba lebota. Kemiso e fapaneng ea liphaephe e bolela botenya bo fapaneng ba lebota bakeng sa phala ea tšepe ka bophara bo lekanang. Lits'oants'o tsa kemiso khafetsa ke SCH 5, 5S, 10, 10S, 20, 20S, 30, 40, 40S, 60, 80, 80S, 100, 120, 140, 160. Ha palo ea tafole e kholoanyane, bokaholimo bo tenya. lerako la liphaephe, le phahamisa khatello ea khatello.

Kemiso ea 40, tekanyo ea phala ea tšepe ea 80 e bolela
Haeba u le mocha indastering ea liphaephe, ke hobane'ng ha u lula u bona kemiso ea 40 kapa 80 pipe ea tšepe hohle? Ke thepa ea mofuta ofe bakeng sa liphaephe tsee?
Joalo ka ha u balile lingoloa tse kaholimo ua tseba hore Kemiso ea 40 kapa 80 e emela botenya ba lerako la liphaephe, empa ke hobane'ng ha e lula e batlisisoa ke bareki?

Lebaka ke lena:
Kemiso ea 40 le 80 pipe ea tšepe e le boholo bo tloaelehileng bo hlokahalang liindastering tse fapaneng, ka lebaka la khatello e tloaelehileng ea liphaephe tsena, li lula li botsoa ka bongata bo boholo.

Tekanyetso ea thepa ea liphaephe tse joalo tsa botenya ha e na meeli, o ka botsa sch 40 peipi ea tšepe e sa hloekang, joalo ka ASTM A312 Grade 316L; Kapa sch 40 carbon steel pipe, joalo ka API 5L, ASTM A53, ASTM A106B, A 179, A252, A333 joalo-joalo.

Nominal Pipe Size (NPS) ke eng?
Nominal Pipe Size (NPS) ke sete sa Amerika Leboea sa boholo bo tloaelehileng bakeng sa liphaephe tse sebelisetsoang likhatello tse phahameng kapa tse tlase le mocheso. Boholo ba liphaephe bo hlalositsoe ka linomoro tse peli tse se nang lehlakore: boholo ba phala ka lebitso (NPS) bo ipapisitseng le li-inch, le kemiso (Sched. kapa Sch.).

DN (Nominal Diameter) ke eng?

Bophara ba lebitso bo boetse bo bolela bophara ba kantle. Hobane ha lerako la phala le le tšesaane haholo, bophara ba ka ntle le ka hare ba phala ea tšepe bo batla bo lekana, kahoo boleng ba karolelano ea mekhahlelo ka bobeli bo sebelisoa e le lebitso la bophara ba pipe. DN (diameter ea lebitso) ke bophara bo akaretsang ba lisebelisoa tse fapaneng tsa liphaephe le liphaephe. Sebaka se tšoanang sa bophara ba phala le lisebelisoa tsa liphaephe li ka kopanngoa, li na le phetoho. Le hoja boleng bo le haufi kapa bo lekana le bophara bo ka hare ba pipe, Ha se moelelo oa sebele oa bophara ba pipe. Boholo ba lebitso bo emeloa ke letšoao la digital le lateloa ke tlhaku "DN", 'me u tšoaee yuniti ka limilimithara ka mor'a letšoao. Ka mohlala, DN50, phala e nang le bophara ba 50 mm.

Pipe Weight Class Kemiso ea
Sehlopha sa WGT (sehlopha sa boima ba 'mele) ke sesupo sa botenya ba lebota la phala pele, empa se ntse se sebelisoa. E na le limaraka tse tharo feela, e leng STD ( standard ), XS ( extra strong ), le XXS ( double extra strong ).
Bakeng sa pipe ea pele ea tlhahiso, caliber ka 'ngoe e na le tlhaloso e le' ngoe feela, e bitsoang "standard tube" (STD). E le ho sebetsana le mokelikeli o phahameng oa khatello, phala e teteaneng (XS) e ile ea hlaha. XXS (double extra strong) pipe e ile ea bonahala e sebetsana le mokelikeli o phahameng oa khatello. Batho ba ile ba qala ho hloka tšebeliso ea phala e ngata e tšesaane e nang le marako ho fihlela ho hlaha theknoloji e ncha ea ho sebetsana le thepa, ebe butle-butle ho hlaha palo ea phala e ka holimo. Kamano e tsamaellanang lipakeng tsa kemiso ea liphaephe le sehlopha sa boima ba 'mele, e bua ka ASME B36.10 le ASME B36.19.

Joang ho hlalosa litekanyo tsa lipeipi tsa tšepe le boholo ka nepo?
Ka mohlala: a. E hlalositsoe e le “phaephe e ka ntle bophara × botenya ba lebota”, joalo ka Φ 88.9mm x 5.49mm (3 1/2” x 0.216” ). 114.3mm x 6.02mm (4 1/2” x 0.237”), bolelele ba 6m (20ft) kapa 12m (40ft), Single Random Length (SRL 18-25ft), kapa Habeli Random Length (DRL 38-40ft).

b. E hlalositsoe e le “NPS x Kemiso”, NPS 3 inch x Sch 40, NPS 4 inch x Sch 40. Boholo bo tshwanang le bo boletsweng ka hodimo.
c. E hlalositsoe e le "NPS x WGT Class", NPS 3 inch x SCH STD, NPS 4 inch x SCH STD. Boholo bo tšoanang ka holimo.
d. Ho na le tsela e 'ngoe, Amerika Leboea le Amerika Boroa, hangata e sebelisa "Pipe Outer Diameter x lb/ft" ho hlalosa boholo ba pipe. Joalo ka OD 3 1/2”, 16.8 lb/ft. lb/ft ke ponto ka maoto.