HDPE yog cov kav dej zoo. Nws yuav tsum tsis tsuas yog muaj kev lag luam zoo, tab sis kuj muaj cov txiaj ntsig zoo xws li kev ruaj khov thiab txhim khu kev qha, cov khoom siv cuam tshuam, tawg tsis kam, kev laus ua haujlwm thiab corrosion kuj. Piv nrog cov kav dej ib txwm muaj, HDPE pipeline system muaj cov hauv qab no ntawm qhov zoo:
(1) Txhim khu kev sib txuas: Cov yeeb nkab polyethylene txuas nrog hluav taws xob cua sov, thiab lub zog ntawm kev sib koom ua ke yog siab dua li ntawm cov yeeb nkab lub cev.
(2) Kev cuam tshuam zoo ntawm qhov kub thiab txias: qhov kub thiab txias ntawm polyethylene tsis tshua muaj siab, thiab nws tuaj yeem siv rau qhov kub thiab txias ntawm -60-60 degree. Thaum lub sij hawm tsim kho nyob rau hauv lub caij ntuj no, vim muaj kev cuam tshuam zoo ntawm cov khoom, cov yeeb nkab yuav tsis nkig.
(3) Kev tiv thaiv zoo rau kev ntxhov siab tawg: HDPE muaj qhov tsis tshua muaj siab, siab shear zog thiab kev khawb zoo heev, thiab nws qhov kev tiv thaiv ib puag ncig kev ntxhov siab tawg kuj tseem ceeb heev.
⑷ Cov tshuaj tiv thaiv corrosion zoo: HDPE kav tuaj yeem tiv taus qhov corrosion ntawm ntau yam tshuaj lom neeg, thiab cov tshuaj lom neeg hauv av yuav tsis ua rau muaj kev puas tsuaj rau cov kav dej. Polyethylene yog ib qho hluav taws xob insulator yog li nws yuav tsis rot, xeb los yog galvanically corrode; nws yuav tsis txhawb algal, kab mob los yog fungal loj hlob.
⑸ Kev laus ua haujlwm thiab lub neej ua haujlwm ntev: cov kav dej polyethylene uas muaj 2-2.5 feem pua ntawm cov pa roj carbon dub sib npaug tuaj yeem khaws cia rau hauv qhov chaw qhib lossis siv rau 50 xyoo yam tsis muaj kev puas tsuaj los ntawm hluav taws xob ultraviolet.
⑹ Zoo hnav tsis kam: Kev hnav tsis kam sib piv ntawm HDPE yeeb nkab thiab cov yeeb nkab steel qhia tau hais tias hnav tsis kam ntawm HDPE yeeb nkab yog 4 npaug ntawm cov yeeb nkab steel. Hauv kev thauj mus los ntawm av nkos, piv nrog cov kav hlau, HDPE cov kav dej muaj kev hnav zoo dua, uas txhais tau hais tias HDPE kav dej muaj kev pabcuam ntev dua thiab kev lag luam zoo dua.
⑺ Kev ua tau zoo: Kev hloov pauv ntawm cov kav dej HDPE ua rau nws yooj yim rau khoov. Hauv engineering, obstacles tuaj yeem hla los ntawm kev hloov cov kev taw qhia ntawm cov yeeb nkab. Feem ntau, qhov yooj yim ntawm cov yeeb nkab tuaj yeem txo cov yeeb nkab fittings thiab txo cov nqi installation.
⑻ Cov dej ntws me me: HDPE yeeb nkab muaj qhov sib luag sab hauv, thiab nws cov Manning coefficient yog 0.009. Qhov kev ua tau zoo thiab cov khoom tsis muaj nplaum ua kom ntseeg tau tias cov kav dej HDPE muaj lub peev xwm ntau dua li cov kav dej ib txwm muaj, thiab tseem txo qis qhov poob ntawm cov kav dej thiab kev siv zog ntawm kev thauj mus los hauv dej.
⑼ Yooj yim tuav: HDPE kav yog sib dua li cov kav dej ua vaj tse, cov kav dej galvanized thiab cov kav hlau. Nws yog ib qho yooj yim los nqa thiab nruab, thiab cov neeg ua haujlwm qis thiab cov khoom siv yuav tsum txhais tau hais tias tus nqi ntawm qhov project yog txo qis heev.
⑽ Ntau hom kev tsim kho tshiab: HDPE kav dej muaj ntau yam kev tsim kho. Ntxiv nrog rau cov txheej txheem kev khawb ib txwm, muaj ntau yam tshiab uas tsis yog kev siv thev naus laus zis xws li cov yeeb nkab jacking, kev taw qhia drilling, liner, Nws yog qhov kev xaiv zoo rau qee qhov chaw uas tsis muaj kev khawb av.
