Amashubhu ensimbi angenamthungo futhi ashiselwe adlala indima ebalulekile njengezingxenye eziyisisekelo zemboni yesimanje.
Ukucaciswa kwala mashubhu ngokuyinhloko kuchazwa ububanzi bangaphandle (OD), ukujiya kodonga (WT) nobude (L), kuyilapho kubalwa isisindo seshubhu lensimbi kusekelwe kulawa mapharamitha anobukhulu kanye nokuminyana (ρ) kwento. .Ukuhlelwa kwephrojekthi, ukulawulwa kwezindleko kanye ne-logistics, ukubala okunembile kwesisindo sepayipi yensimbi kubalulekile.Lesi sihloko sethula izindlela ezintathu zokubala isisindo samashubhu ensimbi futhi sibonisa ukuthi zisetshenziswa kanjani ngezibonelo ezingokoqobo.
Ukubalwa Okuyisisekelo Kwesisindo Sombhobho
Isisindo sepayipi lensimbi singalinganiswa ngokubala umthamo walo ophindwe ngobuningi bensimbi.
Okwamapayipi ensimbi ayindilinga (okuhlanganisa angenamthungo kanyeamapayipi ensimbi ashiselwe), isisindo sibalwa kanje:
Isisindo(kg)=×(OD2-(OD-2×WT)2)×L×ρ
ODububanzi obungaphandle bepayipi lensimbi ngamamitha (m);
WTubukhulu bodonga lwepayipi lensimbi ngamamitha (m);
Lubude bepayipi lensimbi ngamamitha (m);
ρukuminyana kwensimbi, yensimbi ye-carbon evamile, cishe ku-7850kg/m3.
I-algorithm eyenziwe lula: amayunithi ombuso
Isisindo（lb/ft)=(OD (in)−WT (in))×WT (in)×10.69
lapho u-10.69 kuyisici esibalwe kusukela ekumineni kwensimbi kanye nokuguqulwa kweyunithi okusetshenziselwa ukuguqula ubukhulu ukusuka kumayintshi ukuya kumakhilogremu ngonyawo ngalunye lobude.
Izibalo zesibonelo
Ukucabangela ingxenye yeIpayipi lensimbi le-ERWenobubanzi obungaphandle obungamayintshi angu-10 nogqinsi lwedonga lwamayintshi angu-0.5, bala isisindo ngonyawo ngalunye lobude: Isisindo (lb/ft) = (10-0.5) x 0.5 x 10.69
Isisindo ngonyawo ngalunye lobude baleli payipi lensimbi cishe singamakhilogremu angu-50.7775.
I-algorithm eyenziwe lula: amayunithi we-metric
Isisindo (kg)=(OD−WT)×WT×L×0.0246615
I-OD ububanzi obungaphandle bepayipi lensimbi, ngamamitha (mm);
I-WT ubukhulu bodonga lwepayipi lensimbi ngamamitha (mm);
L ubude beshubhu ngamamitha (m);
0.0246615 isekelwe ekumineni kwensimbi (cishe 7850 kg/m³) kanye nesici sokuguqula iyunithi.
Izibalo zesibonelo
Ake sithi sine aipayipi lensimbi engenamthungoububanzi obungaphandle obungu-114.3 mm, ukujiya kodonga buyi-6.35 mm, nobude obungu-12 m.Bala isisindo sepayipi usebenzisa ifomula elula engenhla:
1. Bala umehluko phakathi kobubanzi nobukhulu bodonga: 114.3 - 6.35 = 107.95.2.
2. Bala isisindo ngokufaka ifomula: 107.95 × 6.35 × 12 × 0.0246615.3.
3. Umphumela uthi: 202.86
Ngakho-ke, isisindo esiphelele sepayipi silinganiselwa ku-202.86 kg.
Ama-coefficients 10.69 kanye no-0.0246615 kufomula asekelwe kubukhulu obuphakathi bensimbi.Izinhlobo ezahlukene zensimbi (isb. insimbi engagqwali, i-alloy steel, njll.) zingaba nokuminyana okuhlukene futhi izici kufanele zilungiswe ngokufanele.
Lezi zibalo zinikeza isilinganiso sesisindo seengenamthungokanye namashubhu ensimbi ashiselwe.Ngenxa yokuminyana kwezinto ezihlukene, ukubekezelelana kokukhiqiza, nezinye izici, izisindo zangempela zingahluka.
Izisindo zangempela zingahluka kuye ngokubekezelela umkhiqizo kanye nokuminyana kwezinto, ngakho le fomula iyisilinganiso.Ukuze uthole isibalo esinembile sesisindo, kunconywa ukuthi ubhekisele kudatha enikezwe umkhiqizi noma ukuthi uthathe izilinganiso zangempela.
Ukuze uthole izibalo ezinembile zobunjiniyela noma izingcaphuno zezentengiso, kunconywa ukuthi kusetshenziswe idatha enemininingwane eyengeziwe noma kuthintwe abahlinzeki bepayipi lensimbi ukuze bathole ulwazi olunembile lwesisindo.
Izibalo zesisindo samapayipi ziyingxenye ebalulekile yomklamo wobunjiniyela kanye nokulawulwa kwezindleko, kanye nokuqonda okufanele nokusebenzisa lezi zibalo Le ndlela yokubala isebenza kumapayipi ensimbi engenamthungo anogqinsi oluncane kakhulu lwezindonga.Endabeni yamashubhu ensimbi angenamthungo aminyene kakhulu, kungase kudingeke ukuba kubhekwe izibalo eziyinkimbinkimbi.
tags: ipayipi isisindo, ipayipi steel, nekhono, ashiselwe.
Isikhathi sokuthumela: Feb-27-2024