1) Cov qauv kev txwv
Ob chav - phab ntsa corrugated yeeb nkab muaj aprofiled txheej phab ntsa (corrugations) + du sab hauv phab ntsa.
Cov qauv no muab siabLub nplhaib txhav (SN rating)tab sis tseem ceeb txoflexural uniformity.
Cov corrugations ua raws likev ntxhov siab concentration ntsiab lusthaum khoov
Tight coiling tuaj yeem ua rau:
Local buckling ntawm corrugation crests
Ovalization ntawm cov yeeb nkab hla -section
Permanent deformation
2) Yam tsawg kawg nkaus khoov vojvoog txwv
Piv rau cov khoom-phab ntsa HDPE yeeb nkab:
Khoom- phab ntsa HDPE (PE100/PE80)→ tuaj yeem coiled vim nws tso cai rau qhov loj elastic deformation
Ob - phab ntsa corrugated yeeb nkab→ muaj qhov loj duayam tsawg kawg bending radius, feem ntau:
Ntau dua lossis sib npaug20-30 × OD(feem ntau txawm siab dua nyob ntawm chav kawm SN)
Rau DN110:
OD ≈ 110-125 mm
Yam tsawg kawg bending radius ≈2.2-3.5 meters los yog ntau tshaj
Lub vojvoog no loj dhau rau kev siv coiling (tshwj xeeb tshaj yog rau cov qauv thauj khoom coils).
3) Kev tsim khoom thiab xa khoom
Hauv kev ua lag luam:
DN110 ob -phab ntsa corrugated kav feem ntau yog muab raws li:
Ncaj ntev (piv txwv li, 6 m)
Qee zausme ntsis nkhaus pob, mastsis coils
Coiling feem ntau txwv rau:
Cov kab me me (piv txwv li, DN20–DN63 khoom- phab ntsa PE kav)
Los yog tshwj xeeb lub teeb yuag corrugated ducts (nyias- phab ntsa telecom ducts, tsis structural kav)
4) Muaj peev xwm zam tau (limited case)
Coiling tej zaum yuavtechnically ua tau tab sis tsis pom zooyog tias:
Lub cev muajqis SN qhov ntsuas (piv txwv li, SN4)
Lojcoiling txoj kab uas hla (loj heev coil)yog siv
Tswj Hoobkas tej yam kev mob nrogtxias txias
Txawm li ntawd los:
Risk ntawmteeb meem kev teeb tsa thiab txo cov kev pab cuam lub neejseem
Feem ntau cov qauv thiab manufacturerstsis txhawb nqa coiled rau DN110 DWC kav
Xaus
Standard xyaum:❌ Tsis muaj coil
Engineering feasibility:⚠️ Tsuas yog nrog lub vojvoog loj heev thiab kev tswj tshwj xeeb
Txoj kev pom zoo:✔️ Siv cov kav dej ncaj nraim nrog lub qhov (socket) lossis txuas txuas txuas
