Simbi pombi zviyero

Mapaipi esimbianokamurwa ne-cross-sectional shape kuita denderedzwa, sikweya, rectangular, uye mapaipi akasarudzika; nezvinhu zviri kabhoni structural simbi mapaipi, yakaderera-alloy structural simbi pombi, alloy simbi pombi, uye composite pombi; uye nekushandisa mumapombi ekufambisa mapaipi, zvimiro zveinjiniya, midziyo yekupisa, maindasitiri epetrochemical, kugadzira michina, kuchera geological, uye midziyo inodzvinyirira. Nekugadzira maitiro, iwo akakamurwa kuita seamless simbi pombi uye welded simbi pombi. Mapombi esimbi asina musono anoiswazve muchikamu mumhando dzinopisa-inokungurutswa uye inotonhora-yakakungurutswa (yakadhonzwa), nepo mapaipi esimbi akaiswa akakamurwa kuita mapombi akatwasuka seam akasungwa uye spiral seam welded pombi.

 

Pane nzira dzakawanda dzekumiririra pombi dimensional paramita. Pazasi pane tsananguro dzezvinowanzo shandiswa pombi zviyero: NPS, DN, OD uye Chirongwa.

(1) NPS (Nominal Pipe Size)

NPS ndiyo chiyero chekuNorth America chepamusoro/pasi-kudzvanya uye nepamusoro/pasi-tembiricha pombi. Iyo inhamba isina dimensionless inoshandiswa kuratidza saizi yepombi. Nhamba inotevera NPS inoratidza chiyero chepombi saizi.

NPS yakavakirwa pane yekutanga IPS (Iron Pipe Size) system. Iyo IPS system yakavambwa kuti isiyanise saizi yepombi, ine zviyero zvakaratidzwa mumainch zvinomiririra dhayamita yemukati. Semuenzaniso, IPS 6" pombi inoratidza dhayamita yemukati iri pedyo nemainji matanhatu.

 

(2) Nominal Diameter DN (Diameter Nominal)

Nominal Diameter DN: Imwe inomiririra yezita dhayamita (bore). Inoshandiswa mumapombi epombi semusanganiswa wemavara-nhamba, ine mavara DN achiteverwa nenhamba isina dimensionless. Izvo zvinofanirwa kucherechedzwa kuti iyo DN yezita bore ndeye yakatenderedzwa yakatenderedzwa nhamba yezvinangwa zvereferensi, inongotakura hukama hwakasununguka kune chaiwo ekugadzira zviyero. Nhamba inotevera DN inowanzoita millimeters (mm). MuchiChinese zviyero, madhayamita epombi anowanzo kutsanangurwa seDNXX, senge DN50.

Madhayamita epombi anosanganisira dhayamita rekunze (OD), dhayamita yemukati (ID), uye dhayamita rezita (DN/NPS). Iyo dhayamita yezita (DN/NPS) haienderane neiyo chaiyo yekunze kana yemukati dhayamita yepombi. Panguva yekugadzira uye kuisirwa, dhayamita rekunze rinoenderana uye ukobvu hwemadziro hunofanirwa kutariswa zvinoenderana neyakajairwa yakatarwa kuti uverenge dhayamita yemukati yepombi.

 

(3) Outer Diameter (OD)

Outer Diameter (OD): Chiratidzo chedhayamita rekunze ndi Φ, uye chinogona kunzi OD. Pasi rose, pombi dzesimbi dzinoshandiswa pakufambisa mvura dzinowanzoiswa muzvikamu zviviri zvekunze dhayamita dzakatevedzana: Series A (madhayamita makuru ekunze, ishe) uye Series B (madiki ekunze madhayamita, metric).

Mazhinji simbi pombi yekunze dhayamita akatevedzana aripo pasi rose, akadai ISO (International Organisation for Standardization), JIS (Japan), DIN (Germany), uye BS (UK).

 

(4) Pipe Wall Thickness Schedule

Muna Kurume 1927, American Standards Committee yakaita ongororo yeindasitiri uye yakaunza madiki ekuwedzera pakati pemagiropi maviri ekutanga pombi emadziro emadziro mamakisi. Iyi sisitimu inoshandisa SCH kuratidza kukora kwezina kwemapombi.

 

 EHONG SIMBA--simbi pombi zviyero