I-DIN 30670-1inqubo yokukhipha enezingqimba ezintathu ekhiqiza i-polyethylene (3LPE) ungqimba phezu kobuso be-longitudinal noma spirally welded kanyeamapayipi ensimbi angenamthungoukuze bazivikele ekugqwaleni.
Isetshenziswa kakhulu ezinhlelweni zamapayipi agqitshwe noma acwiliswe emanzini ukuze kuthuthwe uketshezi noma amagesi.
Qaphela: I-DIN 30670 ihlukaniswe izingxenye ezimbili kuhlelo lwakamuva luka-2024 kuye ngenqubo yokukhiqiza, okungukuthi i-DIN 30670-1 ihlanganisa ipayipi kanye ne-wound extruded polyethylene coatings, kanye ne-DIN 30670-2 ihlanganisa izinhlobo ezifakwe i-sintered kanye ne-flame sprayed.
Zihlukaniswe ngezinhlobo ezimbili ngokuya ngokushisa komklamo, okuyiuhlobo N kanye nohlobo S.
| Uhlobo | Izinga lokushisa lomklamo (°C) |
| N | -20 kuya ku-+60 |
| S | -40 kuya ku-+80 |
futhiI-ISO 21809-1ihambisana nekilasi A kanye nekilasi B, ngokulandelana.
Isendlalelo sokuqala se-Epoxy resin layer, i-epoxy resin powder kumele isetshenziswe.
Isendlalelo sesibili sokunamathela, esingaba yimpuphu noma esimbozwe nge-extruded.
Isendlalelo sesithathu se-polyethylene, inqubo yokukhipha amashubhu, noma inqubo yokukhipha ama-wind.
Ukukhishwa Kweshubhu:
Kule nqubo, izinto ze-polyethylene zikhishwa ngqo esimweni se-tubular esiqhubekayo, bese zifakwa epayipini lensimbi.
Le ndlela ivame ukusetshenziselwa amapayipi amancane anobubanzi futhi iqinisekisa ukufana nokuqhubeka kwesembozo.
Ukwelulwa komoya:
Kule nqubo, i-polyethylene ikhishwa ngesimo somugqa bese iboshelwa ebusweni bepayipi lensimbi.
Le ndlela ifaneleka kumapayipi amakhulu noma angalingani futhi ivumela ukumbozwa okuguquguqukayo kumapayipi ayinkimbinkimbi noma amakhulu.
Kuye ngezidingo ezithile zephrojekthi, ungqimba olwengeziwe lokuvikela okwenziwa ngomshini lungangezwa ku-3LPE.
Izinto ezisetshenziswa kakhulu zifaka phakathiukhonkolo(bheka i-ISO 21809-5),ipulasitiki eqiniswe ngefayibha yengilazi, noma udaka lukasimende(bheka i-DN N 30340-1).
Ukuqinisekisa ukuthi i-polyethylene inamandla amahle okucheba, kubalulekile ukugoqa noma ukucindezela ubuso be-polyethylene.
Ukwelashwa okunjalo kusiza ukwandisa ukunamathelana phakathi kwesendlalelo esengeziwe sokuvikela kanye nesembozo se-polyethylene.
Ubukhulu Besendlalelo Se-Epoxy Resin
Okungenani ama-80um.
Ubukhulu Besendlalelo Esinamathelayo
Okungenani i-150um.
Ubukhulu Bokumboza Okuphelele
Kuye ngobukhulu bepayipi lensimbi, ubukhulu besendlalelo sokuvikela ukugqwala buzohluka.
Ukuze kube nobukhulu obuphelele besendlalelo se-3LPE, i-DIN 30670-1 ihlukanisa amakilasi amathathu ukuze ibhekane nezidingo zokwakha ezahlukene.n,v, kanye no-s.
Ibanga n: Ezimweni ezijwayelekile, ubukhulu bebanga n buvame ukwanele.
Ukuze kufakwe i-polyethylene, ubukhulu obuyi-1 mm busetshenziswa ngokuyinhloko ekuvikeleni ukugqwala, kuyilapho ubukhulu obusele busetshenziswa ukuthuthukisa amandla okuthwala umthwalo wensimbi yesendlalelo esivikelayo.
Ibanga v: Uma umthwalo womshini ukhuphuka (ukuthutha, ukugcina, ukubeka, ikhwalithi ethile, izidingo ezengeziwe), ubukhulu obuncane bokumboza kumele bukhuliswe ngo-0.7 mm, okungukuthi v = n + 0.7 mm.
Amamaki: Ubukhulu obukhethekile bokumboza obuphakeme kune-v bungavunyelwana ngakho ukuze kuhlangatshezwane nezidingo zephrojekthi ethile, futhi ubukhulu obunjalo bokumboza obufanele bubhalwe ngokuthi yi-Grade s.
150mm ± 20mm, i-engeli ye-bevel yobukhulu be-coating akufanele ibe ngaphezu kwama-30°.
Izendlalelo ze-epoxy kanye ne-glue kumele zisuswe okungenani amamilimitha angu-80 ukusuka ekugcineni kwepayipi. Isendlalelo se-epoxy kumele sishiywe siphuma ekugcineni kwepayipi elimbozwe nge-polyethylene okungenani ngamamilimitha ayi-10.
Ukuze unqume ubude, kala kusukela ebusweni bempande yepayipi kuya ekuqaleni kokuphela kokunqunywa okuvundlile kwesendlalelo sokuvikela ukugqwala.
Amaphutha Ajwayelekile
Amaphutha amancane kanye nomonakalo ebusweni bensimbi okungafinyelelwanga.
Izimbobo engqimbeni ephezulu ye-PE;
Izindawo ezincane ezingamboziwe ngokuphelele;
Ukufakwa kanye nama-bubble omoya engqimbeni ephezulu;
Ukunamathela ezintweni zangaphandle;
Ukuhuzuka kobuso;
Ukuqhekeka okuncane embozweni.
Lezi zingozi ezincane zivunyelwe ukulungiswa futhi akukho mkhawulo wendawo engalungiswa.
Amaphutha Anzima
Umonakalo wokumboza uqonde ngqo ebusweni bepayipi lensimbi.
Indawo yeziphambeko ngazinye okufanele zilungiswe akumele idlule u-10 cm². Inani elivumelekile leziphambeko okufanele zilungiswe yisiphambeko esisodwa ngemitha eli-1 lobude bepayipi. Ngaphandle kwalokho, ipayipi kumele liqoshwe.
I-ISO 21809-1: Ngokukhethekile nge-polyethylene ne-polypropylene (3LPE kanye ne-3LPP) yangaphandle enezingqimba ezintathu ezisetshenziswa ngamapayipi ensimbi asetshenziswa ezinhlelweni zokudlulisa embonini kawoyela negesi.
I-CSA Z245.21: Icacisa izembozo zangaphandle ze-polyethylene zokulwa nokugqwala zamapayipi ensimbi asetshenziswa ezinhlelweni zokuhambisa.
I-AWWA C215: Izembozo zangaphandle ze-polyethylene ezilwa nokugqwala ezifanelekela amapayipi okuhambisa amanzi. Nakuba zisetshenziswa kakhulu ezinhlelweni zokuhambisa amanzi, zifana kakhulu ne-DIN 30670 ngokwezinto zokwakha kanye nobuchwepheshe bokusebenzisa.
Silangazelela ukubambisana nawe ukukunikeza izixazululo zepayipi lensimbi elisezingeni eliphezulu kanye nezixazululo zokumboza ezilwa nokugqwala kumaphrojekthi akho. Sicela uzizwe ukhululekile ukuxhumana nathi ukuthola imininingwane eyengeziwe yomkhiqizo, siyajabula ukukusiza ukuthola inketho yepayipi lensimbi engcono kakhulu yezidingo zakho!
