Anawaena inoa a me ke anawaena o loko a me waho o ka paipu kila spiral

Paipu kila wiliwilihe ʻano paipu kila i hana ʻia ma ka ʻōwili ʻia ʻana o ke kaula kila i loko o ke ʻano paipu ma kekahi kihi spiral (anuʻu angle) a laila wili. Hoʻohana nui ʻia ia i nā ʻōnaehana pipeline no ka aila, ke kinoea maoli a me ka lawe wai.

 
Anawaena inoa (DN)
ʻO ke anawaena inoa e pili ana i ke anawaena inoa o ka paipu, ʻo ia ka waiwai nominal o ka nui o ka paipu. No ka paipu kila spiral, ua kokoke ke anawaena inoa, aole nae i like me ke anawaena maoli a mawaho paha.
Hōʻike pinepine ʻia e DN me kahi helu, e like me DN200, e hōʻike ana he 200 mm paipu kila ke anawaena nominal.
Nā pae helu helu maʻamau (DN):
1. Ke anawaena liʻiliʻi (DN100 - DN300):
DN100 (4 iniha)
DN150 (6 iniha)
DN200 (8 iniha)
DN250 (10 iniha)
DN300 (12 iniha)

2. Laulā anawaena waena (DN350 - DN700):
DN350 (14 iniha)
DN400 (16 iniha)
DN450 (18 iniha)
DN500 (20 iniha)
DN600 (24 iniha)
DN700 (28 iniha)

3. Nui anawaena laula (DN750 - DN1200):
DN750 (30 iniha)
DN800 (32 iniha)
DN900 (36 iniha)
DN1000 (40 iniha)
DN1100 (44 iniha)
DN1200 (48 iniha)

4. ʻOi aku ka nui o ke anawaena (DN1300 a i luna):
DN1300 (52 iniha)
DN1400 (56 iniha)
DN1500 (60 iniha)
DN1600 (64 iniha)
DN1800 (72 iniha)
DN2000 (80 iniha)
DN2200 (88 iniha)
DN2400 (96 iniha)
DN2600 (104 iniha)
DN2800 (112 iniha)
DN3000 (120 iniha)

OD a me ID
Anawaena waho (OD):
ʻO OD ke anawaena o ka ʻili o waho o ka paipu kila spiral. ʻO ka OD o ka paipu kila spiral ka nui maoli o waho o ka paipu.
Hiki ke loaʻa ka OD ma ke ana maoli a ʻike pinepine ʻia i nā millimeters (mm).
Anawaena Loko (ID):
ʻO ka ID ke anawaena ʻili o loko o ka paipu kila pila. ʻO ka ID ka nui maoli o loko o ka paipu.
E helu pinepine ʻia ka ID mai ka OD e emi ʻelua ka mānoanoa o ka pā i millimeters (mm).
ID=OD-2×ka mānoanoa o ka paia

Nā noi maʻamau
ʻO nā paipu kila spiral me nā anawaena inoa like ʻole he mau noi like ʻole ma nā ʻano ʻano like ʻole:
1. Li'ili'i anawaena paipu kila spiral (DN100 - DN300):
Hoʻohana maʻamau i ka ʻenekinia kaona no nā paipu wai, nā paipu hoʻoheheʻe, nā paipu kinoea, etc.

2. Medium diameter spiral steel pipe (DN350-DN700): hoʻohana nui ʻia i ka ʻaila, ka pipeline kūlohelohe a me ka pipeline wai ʻoihana.

3. paipu kila spiral nui anawaena(DN750 - DN1200): hoʻohana ʻia i nā papahana hoʻoili wai lōʻihi, nā paipu aila, nā papahana ʻoihana nui, e like me ka lawe ʻana i waena.

4. ʻO ka paipu kila spiral nui nui (DN1300 a i luna): hoʻohana nui ʻia no ka wai lōʻihi o ka wai, ka aila a me ke kinoea pipeline, nā paipu submarine a me nā papahana ʻoihana nui.

Nā kūlana a me nā kūlana
ʻO ke anawaena nominal a me nā kikoʻī ʻē aʻe o ka paipu kila spiral e hana pinepine ʻia e like me nā kūlana kūpono a me nā loina, e like me:
1. Nā kūlana honua:
API 5L: pili i ka pipeline lawe kila paipu, stipulates i ka nui a me ka waiwai koi o spiral paipu kila.
ASTM A252: pili i ka paipu kila kila, ka nui o ka paipu kila spiral a me nā koi hana.

 

2. National Standard:
GB / T 9711: pili i ka paipu kila no ka lawe ʻana i ka ʻaila a me ka ʻoihana kinoea, e wehewehe i nā koi ʻenehana o ka paipu kila spiral.
GB / T 3091: pili i ka lawe ʻana i ka wai haʻahaʻa haʻahaʻa me ka paipu kila welded, e kuhikuhi i ka nui o ka paipu kila a me nā koi ʻenehana.