ʻEhia ke kaumaha o ka paipu hao ductile?

I ka hoʻolako wai a me ka ʻenekinia hoʻokahe wai, nā pūnaewele paipu kūlanakauhale, a me nā ʻōnaehana paipu ʻoihana,paipu hao ductileua lilo i mea pani kūpono no nā paipu hao a me ke kila kuʻuna ma muli o kona mau waiwai mechanical maikaʻi loa a me ke kūpaʻa ʻana i ka pala. He mea nui ka hoʻomaopopo ʻana i nā ʻano loea koʻikoʻi o ka paipu hao ductile no nā mea hoʻolālā, nā mea kūʻai mai, a me nā ʻoihana kūkulu hale, inā no nā kumu wai a i ʻole ka halihali wai ʻino. E lawe kēia ʻatikalaPaipu hao ductile DINSENma ke ʻano he laʻana e wehewehe pono i kāna mau kikoʻī, ke kaumaha, ke kaomi hana, a me nā ʻano o ka uhi ʻana.

I. Nā kikoʻī a me nā ana o ka paipu hao ductile: Pehea e hoʻoholo ai i ke kumu hoʻohālike?

I ke koho ʻana i nā paipu, pono mua e wehewehe i nā nui a me nā ana o nā paipu hao ductile. Hoʻokumu nui ʻia nā kūlana honua ma ISO 2531 a i ʻole EN 545, i hoʻokaʻawale ʻia e ke anawaena nominal (DN).

Ma ke ʻano he laʻana, e hoʻohana pinepine ʻia nā paipu hao ductile DINSEN (pae mānoanoa o ka paia maʻamau), me nā anawaena maʻamau mai DN80 a i DN2000. Eia kekahi mau nui paipu maʻamau:

• DN80: Ke anawaena o waho 98mm, ka mānoanoa o ka paia 6.0mm
• DN100: Ke anawaena o waho he 118mm, ka mānoanoa o ka paia he 6.0mm
• DN200: Ke anawaena o waho 222mm, ka mānoanoa o ka paia 6.3mm
• DN400: Ke anawaena o waho he 429mm, ka mānoanoa o ka paia he 8.1mm
• DN1000: Ke anawaena o waho he 1048mm, ka mānoanoa o ka paia he 13.5mm

E hoʻopilikia nā ʻano mānoanoa o ka paia like ʻole (K8, K9, K10, K12) i ka hiki ke lawe i ke kaomi a me ke kaumaha o ka paipu.Hiki i nā mea hoʻohana ke koho kūpono e like me ke kaomi hoʻolālā.

II. Kaumaha no ka mika o ka paipu hao ductile: ʻEhia ke kaumaha o ka paipu hao ductile?

ʻO kahi nīnau maʻamau i ke kūʻai ʻana o ka ʻenekinia: ʻEhia ke kaumaha o ka paipu hao ductile? ʻO ke kaumaha o ka paipu hao ductile e pili ana i ke kaumaha o ke kino paipu a me ke kaumaha o ke kumu, e pili pono ana i nā kumukūʻai halihali, hāpai ʻana, a me ke kau ʻana.

Ma ke ʻano he laʻana, ʻo ke kaumaha o ka paipu hao ductile DINSEN K9 (6 mika ka lōʻihi maʻamau), penei ke kaumaha o ke kumumanaʻo:

• DN100: Ma kahi o 15.1 kg/m → 95 kg no kēlā me kēia paipu
• DN200: Ma kahi o 30.6 kg/m → 194 kg no kēlā me kēia paipu
• DN300: Ma kahi o 50.8 kg/m → 323 kg no kēlā me kēia paipu
• DN500: Ma kahi o 104.3 kg/m → 669 kg no kēlā me kēia paipu
• DN800: Ma kahi o 215.2 kg/m → 1394 kg no kēlā me kēia paipu

Hiki ke ʻokoʻa iki ke kaumaha maoli ma muli o nā mea e like me ka mānoanoa o ka uhi zinc a me ka uhi sima sima o loko. Hiki iā DINSEN ke hāʻawi i nā pepa helu kaumaha pololei no ka hoʻolālā kālā papahana a me ka hoʻolālā logistics.

III. Kaomi Hana o ka Paipu Hao Ductile

He kiʻekiʻe ka ikaika tensile o ka paipu hao ductile a me ka ikaika compressive circumferential. ʻO ke kaomi hana o ka paipu hao ductile maʻamau K9 grade he 16 bar (1.6 MPa), ʻoiai ʻo nā mānoanoa o ka paia kiʻekiʻe (e like me K12) kūpono no nā noi kaomi o 25 bar a i ʻole 40 bar.

Hana ʻia nā paipu hao ductile DINSEN e like me nā kūlana ISO 2531. Hoʻāʻo ʻia kēlā me kēia paipu i kahi hoʻāʻo hydrostatic ma mua o ka haʻalele ʻana i ka hale hana e hōʻoia i kahi kumu palekana he 1.5 mau manawa kiʻekiʻe ma mua o ke kaomi hana i hoʻolālā ʻia, e kūpono loa ana no ka hoʻoili wai mamao loa, nā paipu riser station pumping, a me nā paipu ʻoihana kiʻekiʻe.

IV. Uhi Zinc no ka pale ʻana i ka palaho

Ke Kūlana o ka Uhi Zinc ma nā Paipu Hao Ductile ʻO kekahi o nā hana palekana koʻikoʻi no nā paipu i kanu ʻia, ʻo ia ka uhi zinc ma nā paipu hao ductile. ʻAʻole wale ka uhi zinc e hāʻawi i ka pale cathodic akā hana pū kekahi i kahi ʻōnaehana anti-corrosion composite me ka pena waho a i ʻole ka uhi polyethylene.

Loaʻa nā paipu hao ductile DINSEN me kahi uhi zinc ≥200 g/m² (e like me ke kūlana ISO 8179), i uhi ʻia me kahi papa hoʻopau epoxy ʻulaʻula a i ʻole polyurethane, e hoʻomaikaʻi nui ana i ke kūpaʻa ʻana i ka pala a me ke ola. No nā lepo pala a i ʻole nā ​​​​wahi kū'ē kiʻekiʻe, loaʻa ka uhi zinc hou aʻe + PE film a i ʻole ka uhi polyurethane piha, me kahi ola lawelawe i hoʻolālā ʻia he 50-100 mau makahiki.

V. No ke aha e koho ai i nā paipu hao ductile DINSEN?

Ma ke ʻano he mea hoʻolako paipu hao ductile ʻoihana, hāʻawi ʻo DINSEN i kahi laulā piha o nā kikoʻī mai DN80 a i DN2000, e kākoʻo ana i nā mānoanoa paia like ʻole e like me K8, K9, K10, a me K12, a hiki ke hoʻopilikino i nā lōʻihi, nā uhi o loko (cement mortar/epoxy resin), a me nā hoʻonā pale corrosion o waho e hoʻokō i nā pono o nā mea kūʻai aku.

Ua hōʻoia ʻia nā paipu ductile hao a pau e ISO 2531 / EN 545. Loaʻa nā papa piha o ke kaumaha, nā ana, ke kaomi hana, a me nā palena uhi zinc. Kākoʻo ʻia nā lawelawe hoʻopili hoʻokuʻu aku honua a me nā lawelawe logistics hoʻokahi.

No nā papa koho nui a me nā ana o nā paipu hao ductile a i ʻole nā ​​​​mea hana helu kaumaha, e kipa i kaʻO DINSENa i ʻole e hoʻokaʻaʻike pololei aku i ka hui kūʻai loea.