Spiral ígwè ọkpọkọbụ ụdị ọkpọkọ nchara nke a na-eme site n'ịtụgharị eriri nchara n'ụdị ọkpọkọ n'otu akụkụ gburugburu (nke na-emepụta akụkụ) wee gbado ya. A na-ejikarị ya na usoro pipeline maka mmanụ, gas na mmiri na-ebufe mmiri.
Dayameta aha (DN)
Dayameta aha aha na-ezo aka na dayameta ọnụ nke ọkpọkọ, nke bụ uru ọnụ ahịa nke nha ọkpọkọ. Maka ọkpọkọ nchara gburugburu, dayameta aha ya na-adịkarị nso, mana ọ bụghị nhata, n'ezie n'ime ma ọ bụ n'èzí.
A na-egosipụtakarị ya site na DN gbakwunyere ọnụ ọgụgụ, dị ka DN200, nke na-egosi na n'ọnụ ọnụ dayameta bụ 200 mm ígwè ọkpọkọ.
Dayameta aha nkịtị (DN) dị:
1. Oke dayameta pere mpe (DN100 - DN300):
DN100 (4 inch)
DN150 (6 sentimita)
DN200 (8 sentimita)
DN250 (10 sentimita)
DN300 (12 sentimita)
2. Oke dayameta (DN350 - DN700):
DN350 (14 sentimita)
DN400 (16 sentimita)
DN450 (18 sentimita)
DN500 (20 sentimita)
DN600 (24 sentimita asatọ)
DN700 (28 sentimita asatọ)
3. Oke dayameta buru ibu (DN750 - DN1200):
DN750 (30 sentimita)
DN800 (32 sentimita)
DN900 (36 sentimita)
DN1000 (40 sentimita)
DN1100 (44 inch)
DN1200 (48 sentimita)
4. Oke oke dayameta (DN1300 na n'elu):
DN1300 (52 sentimita)
DN1400 (56 sentimita asatọ)
DN1500 (60 sentimita)
DN1600 (64 inch)
DN1800 (72 sentimita)
DN2000 (80 sentimita)
DN2200 (88 sentimita)
DN2400 (96 sentimita)
DN2600 (104 inch)
DN2800 (112 sentimita)
DN3000 (120 sentimita)
OD na ID
Dayameta dị n'èzí (OD):
OD bụ dayameta nke elu elu nke ọkpọkọ nchara gburugburu. OD nke ọkpọkọ nchara gburugburu bụ nha n'ezie n'èzí ọkpọkọ ahụ.
Enwere ike nweta OD site na nha n'ezie ma a na-atụkarị ya na millimeters (mm).
Dayameta ime (ID):
NJ bụ dayameta elu elu dị n'ime nke ọkpọkọ nchara gburugburu. NJ bụ nha n'ezie n'ime ọkpọkọ ahụ.
A na-agbakọkarị ID site na OD mwepu okpukpu abụọ okpukpu mgbidi na millimita (mm).
ID=OD-2× ọkpụrụkpụ mgbidi
Ngwa a na-ahụkarị
Ọkụ nchara spral nwere dayameta aha dị iche iche nwere ngwa dị iche iche na mpaghara dị iche iche:
1. Obere dayameta gburugburu igwe anwụrụ (DN100 - DN300):
A na-ejikarị eme ihe na injinia ime obodo maka ọkpọkọ mmiri, ọkpọkọ mmiri, ọkpọkọ gas, wdg.
2. ọkara dayameta spiral steel pipe (DN350-DN700): ejiri mmanụ, pipeline gas na pipeline mmiri mmepụta ihe.
3. nnukwu dayameta gburugburu ígwè ọkpọkọ(DN750 - DN1200): A na-eji ya na ọrụ nnyefe mmiri dị anya, pipeline mmanụ, nnukwu ọrụ mmepụta ihe, dị ka njem njem.
4. Super nnukwu dayameta spiral steel pipe (DN1300 na n'elu): tumadi eji maka cross-mpaghara ogologo mmiri, mmanụ na gas pipeline oru ngo, submarine pipeline na ndị ọzọ nnukwu-ọnụ ọgụgụ akụrụngwa oru ngo.
Ụkpụrụ na ụkpụrụ
A na-emepụta dayameta aha aha na nkọwa ndị ọzọ nke ọkpọkọ nchara gburugburu dịka ụkpụrụ na ụkpụrụ dị mkpa si dị, dị ka:
1. Ụkpụrụ mba ụwa:
API 5L: ọdabara na pipeline njem ígwè ọkpọkọ, na-akọwapụta size na ihe onwunwe chọrọ spiral ígwè pipe.
ASTM A252: ọdabara na ọkpọkọ arụrụ arụ, nha nke ọkpọkọ nchara na ihe nrụpụta chọrọ.
2. Ọkọlọtọ mba:
GB / T 9711: ọdabara na ígwè ọkpọkọ maka mmanụ na gas ụlọ ọrụ njem, ezipụta teknuzu chọrọ nke gburugburu ígwè pipe.
GB / T 3091: ọdabara na ala-nrụgide mmiri njem na welded ígwè anwụrụ, ezipụta gburugburu ígwè anwụrụ size na teknuzu chọrọ.
Oge nzipu: Jul-15-2025
