Zita dhayamita uye mukati uye kunze dhayamita pamusoro spiral simbi pombi

Spiral simbi pombiimhando yepombi yesimbi inogadzirwa nekumoneredza simbi muchimiro chepombi pane imwe spiral angle (forming angle) yobva yaipinza. Inoshandiswa zvakanyanya mumapombi masisitimu emafuta, gasi rechisikigo uye kutapurirana kwemvura.

Zita dhayamita ndiro dhayamita rezita repombi, kukosha kwezita kwehukuru hwepombi. Kune spiral simbi pombi, dhayamita yezita inowanzova pedyo, asi haina kuenzana, iyo chaiyo mukati kana kunze kwedhayamita.

Inowanzo kuratidzwa neDN pamwe nenhamba, yakadai seDN200, iyo inoratidza pombi yesimbi ine dhayamita yezita re200 mm.

Common nominal dhayamita (DN) renji:
1. Diki dhayamita renji (DN100 - DN300):
DN100 (4 inches)
DN150 (6 inches)
DN200 (8 inches)
DN250 (10 inches)
DN300 (12 inches)

2. Medium dhayamita renji (DN350 - DN700):
DN350 (14 inches)
DN400 (16 inches)
DN450 (18 inches)
DN500 (20 inches)
DN600 (24 inches)
DN700 (28 inches)

3. Huru Diameter Range (DN750 - DN1200)
DN750 (30 inches)
DN800 (32 inches)
DN900 (36 inches)
DN1000 (40 inches)
DN1100 (44 inches)
DN1200 (48 inches)

4. Yakawedzera dhayamita yakakura (DN1300 uye pamusoro)
DN1300 (52 inches)
DN1400 (56 inches)
DN1500 (60 inches)
DN1600 (64 inches)
DN1800 (72 inches)
DN2000 (80 inches)
DN2200 (88 inches)
DN2400 (96 inches)
DN2600 (104 inches)
DN2800 (112 inches)
DN3000 (120 inches)

Outer dhayamita (OD): OD ndiyo dhayamita yekunze kweiyo spiral simbi pombi. Iyo OD ye spiral simbi pombi ndiyo saizi chaiyo yekunze kwepombi. Iyo OD inogona kuwanikwa nekuyera chaiko, kazhinji mumamirimita (mm).
Yemukati Dhiyamita (ID): ID ndiyo dhayamita yemukati meiyo spiral simbi pombi. ID ndiyo saizi chaiyo yemukati wepombi. ID inowanzoverengerwa nekubvisa kaviri kukora kwemadziro kubva kuOD mumamirimita (mm) ID = OD-2 x Hukobvu hwemadziro.

Nzvimbo yekushandisa

Spiral simbi mapaipi ane akasiyana mazita madhayamita ane akasiyana maapplication munzvimbo dzakasiyana siyana:
1. diki dhayamitaSsaw Steel Pipe(DN100 - DN300): inowanzoshandiswa mumanisiparati engineering yepombi dzemvura, pombi dzemvura, pombi dzegasi, nezvimwe.
2. pakati nepakatiSsaw Pipe(DN350 - DN700): inoshandiswa zvakanyanya mumafuta, gasi pombi uye pombi yemvura yemaindasitiri. 3. hombe dhayamita spiral simbi pombi (DN100 - DN300): inowanzoshandiswa mumanisiparati engineering mvura pombi pombi, drainage pombi, gasi pombi, etc.
3.Yakakura Diameter Ssaw Pipe(DN750 - DN1200): inoshandiswa mumapurojekiti ekufambisa mvura kure-kure, mapaipi emafuta, mapurojekiti makuru emaindasitiri, akadai sekufambisa kwepakati.
4. Yakanyanya-yakakura dhayamitaSaw Carbon Steel Pipe(DN1300 uye pamusoro): inonyanya kushandiswa kuyambuka-regional kureba kwemvura, mafuta uye gasi pombi mapurojekiti, mapaipi epasi pemvura uye mamwe mahombe mapurojekiti ezvivakwa.

Iyo yezita dhayamita uye zvimwe zvakatemwa zvespiral simbi pombi zvinowanzogadzirwa zvinoenderana neakakodzera zviyero uye zvakatemwa:
1. International standards: API 5L: inoshanda kune pombi yekufambisa simbi pombi, inotsanangura saizi uye zvinhu zvinodiwa zvespiral simbi pombi ASTM A252: inoshanda kune yakarongeka simbi pombi, inotsanangura saizi uye zvinodiwa zvekugadzira zvespiral simbi pombi.
2. chiyero chenyika: GB / T 9711: inoshanda kune simbi pombi yekufambisa kwemafuta uye gasi indasitiri, inotsanangura zvinodiwa zvehunyanzvi zvespiral simbi pombi. gb/t 3091: inoshanda kune welded simbi pombi yekufambisa yakaderera-kudzvanywa kwemvura, inotsanangura zviyero uye zvehunyanzvi zvinodiwa zvespiral simbi pombi.