Diameter ya nominal na diameter y'imbere ninyuma yumuringa wicyuma

Umuyoboro w'icyumani ubwoko bwicyuma gikozwe mukuzunguruka umurongo wicyuma muburyo bwa pipe kumurongo runaka uzenguruka (gukora inguni) hanyuma ukabisudira. Ikoreshwa cyane muri sisitemu y'imiyoboro ya peteroli, gaze gasanzwe no kohereza amazi.

 
Diameter Nominal (DN)
Diameter ya nominal bivuga diameter nominal yumuyoboro, nigiciro cyizina cyubunini bwumuyoboro. Ku muyoboro w'icyuma kizunguruka, diameter nominal isanzwe yegereye, ariko ntabwo ihwanye na, imbere imbere cyangwa hanze ya diameter.
Ubusanzwe bigaragazwa na DN wongeyeho umubare, nka DN200, byerekana ko diameter nominal ari umuyoboro wa mm 200.
Diameter isanzwe (DN) ingero:
1. Urutonde ruto rwa diameter (DN100 - DN300):
DN100 (santimetero 4)
DN150 (santimetero 6)
DN200 (santimetero 8)
DN250 (santimetero 10)
DN300 (santimetero 12)

2. Urwego rwa diameter rwagati (DN350 - DN700):
DN350 (santimetero 14)
DN400 (santimetero 16)
DN450 (santimetero 18)
DN500 (santimetero 20)
DN600 (santimetero 24)
DN700 (santimetero 28)

3. Urwego runini rwa diameter (DN750 - DN1200):
DN750 (santimetero 30)
DN800 (santimetero 32)
DN900 (santimetero 36)
DN1000 (santimetero 40)
DN1100 (santimetero 44)
DN1200 (santimetero 48)

4. Urwego runini rwa diameter (DN1300 no hejuru):
DN1300 (santimetero 52)
DN1400 (santimetero 56)
DN1500 (santimetero 60)
DN1600 (santimetero 64)
DN1800 (santimetero 72)
DN2000 (santimetero 80)
DN2200 (santimetero 88)
DN2400 (santimetero 96)
DN2600 (santimetero 104)
DN2800 (santimetero 112)
DN3000 (santimetero 120)

OD na ID
Diameter yo hanze (OD):
OD ni diameter yubuso bwinyuma bwumuyoboro wicyuma. OD y'umuyoboro w'icyuma ni ubunini nyabwo bwo hanze y'umuyoboro.
OD irashobora kuboneka mubipimo bifatika kandi mubisanzwe bipimwa muri milimetero (mm).
Imbere Imbere (ID):
Indangamuntu ni imbere yimbere ya diametre yumuyoboro wicyuma. Indangamuntu nubunini nyabwo bwimbere bwumuyoboro.
Indangamuntu isanzwe ibarwa uhereye kuri OD ukuyemo kabiri uburebure bwurukuta muri milimetero (mm).
ID = OD-2 × uburebure bwurukuta

Porogaramu isanzwe
Imiyoboro ya spiral ifite diametre zitandukanye zifite porogaramu zitandukanye mubice bitandukanye:
1. Umuyoboro muto wa diameter ntoya (DN100 - DN300):
Bikunze gukoreshwa mubwubatsi bwa komini kumiyoboro itanga amazi, imiyoboro itwara amazi, imiyoboro ya gaze, nibindi.

2. Umuyoboro wa diameter wo hagati wicyuma (DN350-DN700): ukoreshwa cyane mumavuta, umuyoboro wa gazi karemano hamwe numuyoboro wamazi winganda.

3. umuyoboro munini wa diameter(DN750 - DN1200): ikoreshwa mumishinga yohereza amazi maremare, imiyoboro ya peteroli, imishinga minini yinganda, nko gutwara abantu n'ibintu.

4. Umuyoboro munini wa diameter nini cyane (DN1300 no hejuru): ukoreshwa cyane cyane mumazi maremare y’akarere k’amazi maremare, imishinga ya peteroli na gaze, imiyoboro yo mu mazi n’indi mishinga minini minini y’ibikorwa remezo.

Ibipimo ngenderwaho
Diameter nominal nibindi bisobanuro byumuyoboro wibyuma bizunguruka bikorerwa mubipimo ngenderwaho bijyanye, nka:
1. Amahame mpuzamahanga:
API 5L.
ASTM A252: ikoreshwa kumuyoboro wibyuma byubatswe, ubunini bwumuyoboro wibyuma nibisabwa ninganda.

 

2. Igipimo cy’igihugu:
GB / T 9711: ikoreshwa kumuyoboro wibyuma byo gutwara inganda za peteroli na gaze, irerekana ibisabwa bya tekiniki yumuyoboro wicyuma.
GB / T.