DIN 30670-1yog ib txoj kev extrusion peb txheej uas tsim cov polyethylene (3LPE) txheej rau ntawm qhov chaw ntawm longitudinally lossis spirally welded thiabcov kav hlau tsis muaj seamlesslos tiv thaiv lawv ntawm corrosion.
Nws feem ntau yog siv rau hauv cov kav dej faus lossis hauv qab dej rau kev thauj mus los ntawm cov kua lossis cov roj.
Lus Cim: DIN 30670 tau muab faib ua ob ntu hauv tsab ntawv tshiab kawg xyoo 2024 nyob ntawm cov txheej txheem tsim khoom, uas yog DIN 30670-1 npog cov hose thiab cov txheej txheem extruded polyethylene, thiab DIN 30670-2 npog cov hom sintered thiab flame sprayed.
Lawv muab faib ua ob hom raws li qhov kub tsim, uas yoghom N thiab hom S.
| Hom | Tsim qhov kub thiab txias (°C) |
| N | -20 txog + 60 |
| S | -40 txog + 80 |
thiabISO 21809-1sib raug rau chav kawm A thiab chav kawm B, feem.
Txheej 1 txheej Epoxy resin, yuav tsum siv hmoov epoxy resin.
Txheej nplaum thib 2, uas tuaj yeem ua hmoov lossis extruded coated.
Txheej thib 3 Polyethylene txheej, raj extrusion txheej txheem, lossis winding extrusion txheej txheem.
Kev Tsim Kho Raj:
Hauv cov txheej txheem no, cov khoom siv polyethylene raug extruded ncaj qha mus rau hauv ib daim ntawv tubular txuas ntxiv, uas tom qab ntawd socketed rau ntawm cov yeeb nkab hlau.
Txoj kev no feem ntau yog siv rau cov kav dej me dua thiab ua kom muaj kev sib npaug thiab kev sib txuas ntawm cov txheej.
Kev rho tawm cua sov:
Hauv cov txheej txheem no, cov polyethylene yog extruded nyob rau hauv daim ntawv ntawm ib daim kab xev thiab tom qab ntawd qhwv rau ntawm qhov chaw ntawm cov yeeb nkab hlau.
Txoj kev no yog qhov tsim nyog rau cov kav dej loj lossis cov kav dej tsis yog tus qauv thiab tso cai rau cov txheej txheem yooj ywm dua ntawm cov kav dej nyuaj lossis loj.
Nyob ntawm seb qhov project xav tau dab tsi, yuav muaj ib txheej ntxiv ntawm kev tiv thaiv tshuab rau 3LPE.
Cov ntaub ntawv siv feem ntau suav nrogpob zeb ua vaj tse(saib ISO 21809-5),cov yas fiberglass-reinforced, los yog cement mortar(saib DN N 30340-1).
Yuav kom ntseeg tau tias muaj zog shear zoo, nws yog qhov tsim nyog los ua kom ntxhib lossis nias rau ntawm qhov chaw ntawm polyethylene.
Kev kho mob zoo li no pab ua kom muaj kev sib txuas ntxiv ntawm cov txheej tiv thaiv ntxiv thiab cov txheej polyethylene.
Epoxy Resin Txheej Thickness
Yam tsawg kawg nkaus 80um.
Cov txheej nplaum tuab
Yam tsawg kawg nkaus 150um.
Tag Nrho Cov Txheej Txheem Thickness
Nyob ntawm seb lub yeeb nkab hlau muaj pes tsawg lub, qhov tuab ntawm cov txheej tiv thaiv xeb yuav txawv.
Rau tag nrho cov tuab ntawm 3LPE txheej, DIN 30670-1 faib peb chav kawm kom daws tau cov kev cai tsim kho sib txawv.n, v, thiab s.
Qib nRau cov xwm txheej ib txwm muaj, qhov tuab ntawm qib n feem ntau txaus.
Rau cov txheej polyethylene, qhov tuab ntawm 1 hli yog siv rau kev tiv thaiv xeb, thaum qhov tuab seem yog siv los txhim kho lub peev xwm thauj khoom ntawm cov txheej tiv thaiv.
Qib vYog tias qhov kev thauj khoom ntawm cov khoom siv kho tshuab nce ntxiv (kev thauj mus los, kev khaws cia, kev tso, qhov zoo tshwj xeeb, qhov yuav tsum tau ua ntxiv), qhov tuab txheej tsawg kawg nkaus yuav tsum tau nce ntxiv 0.7 hli, piv txwv li v = n + 0.7 hli.
Qib sCov txheej txheej tshwj xeeb uas tuab dua v kuj tuaj yeem pom zoo kom ua tau raws li qhov xav tau ntawm ib qho project tshwj xeeb, thiab cov txheej txheej tshwj xeeb no tau muab sau ua Qib s.
150mm ± 20mm, lub kaum sab xis rau txheej tuab yuav tsum tsis pub ntau tshaj 30 °.
Cov txheej epoxy thiab cov nplaum yuav tsum tau tshem tawm tsawg kawg 80 hli ntawm qhov kawg ntawm cov yeeb nkab. Cov txheej epoxy yuav tsum tau tso tawm ntawm qhov kawg ntawm cov yeeb nkab uas tau coated nrog polyethylene tsis pub tsawg dua 10 hli.
Yuav kom paub qhov ntev, ntsuas ntawm qhov hauv paus ntawm cov yeeb nkab mus rau qhov pib ntawm qhov kawg ntawm kab pheeb ces kaum ntawm cov txheej tiv thaiv xeb.
Cov Kev Tsis Zoo Dav Dav
Tsis tau txog qhov tsis zoo me me thiab kev puas tsuaj rau ntawm qhov chaw ntawm cov hlau.
Cov qhov nyob rau hauv txheej sab saud ntawm PE;
Cov cheeb tsam me me uas muaj kev pab tsis tiav;
Cov khoom suav nrog thiab cov pa npuas hauv txheej sab saud;
Kev nplaum ntawm cov khoom txawv teb chaws;
Kev txhuam nto;
Cov qhov me me hauv cov txheej.
Cov kev raug mob me me no raug tso cai kho thiab tsis muaj kev txwv rau thaj chaw uas tuaj yeem kho tau.
Cov Kev Tsis Zoo Loj Hlob
Kev puas tsuaj ntawm cov xim pleev yog ncaj qha mus rau qhov chaw ntawm cov yeeb nkab hlau.
Thaj chaw uas muaj qhov tsis zoo uas yuav kho yuav tsum tsis pub tshaj 10 cm². Tus naj npawb ntawm cov qhov tsis zoo uas tso cai kho yog 1 qhov tsis zoo rau txhua 1 'meter' ntawm cov yeeb nkab ntev. Yog tsis ua li ntawd, yuav tsum sau cov yeeb nkab ntawd.
ISO 21809-1: Tshwj xeeb rau sab nraud peb txheej extruded polyethylene thiab polypropylene (3LPE thiab 3LPP) txheej rau cov kav hlau siv hauv cov kab ke kis hauv kev lag luam roj thiab roj av.
CSA Z245.21: Qhia txog cov txheej txheem tiv thaiv xeb polyethylene sab nraud rau cov yeeb nkab hlau siv hauv cov kab ke conveyor.
AWWA C215Cov txheej polyethylene tiv thaiv xeb sab nraud uas tsim nyog rau cov kav dej. Txawm hais tias feem ntau siv rau cov kab ke xa dej, nws muaj ntau yam zoo sib xws nrog DIN 30670 hais txog cov ntaub ntawv thiab cov thev naus laus zis siv.
Peb tos ntsoov yuav koom tes nrog koj los muab cov yeeb nkab hlau zoo tshaj plaws thiab cov tshuaj tiv thaiv xeb rau koj cov haujlwm. Thov koj xav tiv tauj peb kom paub ntau ntxiv txog cov khoom, peb zoo siab los pab koj nrhiav cov yeeb nkab hlau zoo tshaj plaws rau koj cov kev xav tau!
