Ububanzi okuzisholo kanye nobubanzi bangaphakathi nangaphandle kwepayipi lensimbi elivunguzayo

Ipayipi lensimbi elivunguzayoiwuhlobo lwepayipi lensimbi elenziwe ngokugoqa umucu wensimbi ube yisimo sepayipi endaweni ethile ezungezayo (i-engeli yokwakha) bese uyalishisela. Isetshenziswa kakhulu ezinhlelweni zamapayipi oyela, igesi yemvelo kanye nokudluliswa kwamanzi.

 
I-Nominal Diameter (DN)
Idayamitha yokulinganisa ibhekisela kububanzi obujwayelekile bepayipi, okuyinani elilinganiselwe losayizi wepayipi. Ngepayipi lensimbi elivunguzayo, ububanzi obujwayelekile buvame ukusondele, kodwa abulingani, nobubanzi bangempela bangaphakathi noma bangaphandle.
Ivamise ukuvezwa yi-DN kanye nenombolo, efana ne-DN200, ekhombisa ukuthi ububanzi obuncane bungamapayipi ensimbi angama-200 mm.
Ububanzi obujwayelekile be-nominal (DN):
1. Ibanga lobubanzi obuncane (DN100 - DN300):
I-DN100 (4 amayintshi)
DN150 (6 amayintshi)
I-DN200 (8 amayintshi)
I-DN250 (10 amayintshi)
I-DN300 (12 amayintshi)

2. Ibanga lobubanzi obumaphakathi (DN350 - DN700):
I-DN350 (14 amayintshi)
I-DN400 (16 amayintshi)
I-DN450 (18 amayintshi)
I-DN500 (20 amayintshi)
I-DN600 (24 amayintshi)
I-DN700 (28 amayintshi)

3. Ububanzi obukhulu bobubanzi (DN750 - DN1200):
I-DN750 (30 amayintshi)
I-DN800 (32 amayintshi)
I-DN900 (36 amayintshi)
I-DN1000 (40 amayintshi)
I-DN1100 (44 amayintshi)
I-DN1200 (48 amayintshi)

4. Ububanzi obukhulu bobubanzi (DN1300 nangaphezulu):
I-DN1300 (52 amayintshi)
I-DN1400 (56 amayintshi)
DN1500 (60 amayintshi)
I-DN1600 (64 amayintshi)
I-DN1800 (72 amayintshi)
DN2000 (80 amayintshi)
I-DN2200 (88 amayintshi)
I-DN2400 (96 amayintshi)
I-DN2600 (104 amayintshi)
I-DN2800 (112 amayintshi)
I-DN3000 (120 amayintshi)

OD kanye ne-ID
Ububanzi Bangaphandle (OD):
I-OD ububanzi bendawo yangaphandle yepayipi lensimbi elivunguzayo. I-OD yepayipi lensimbi elivunguzayo ubukhulu bangempela bangaphandle kwepayipi.
I-OD ingatholwa ngesilinganiso sangempela futhi ngokuvamile ikalwa ngamamilimitha (mm).
Ububanzi Bangaphakathi (ID):
I-ID ingububanzi bobuso obungaphakathi bepayipi lensimbi elivunguzayo. I-ID ingusayizi wangempela wengaphakathi lepayipi.
I-ID ivamise ukubalwa ukusuka ku-OD khipha kabili ukujiya kodonga ngamamilimitha (mm).
I-ID=OD-2×ukujiya kodonga

Izinhlelo zokusebenza ezijwayelekile
Amapayipi ensimbi okuvunguza anamadayamitha ahlukene okuzisholo anemisebenzi ehlukene emikhakheni ehlukahlukene:
1. Ipayipi elincane lensimbi elivunguzayo (DN100 - DN300):
Okuvame ukusetshenziselwa ubunjiniyela bakamasipala kumapayipi okuhambisa amanzi, amapayipi amanzi, amapayipi egesi, njll.

2. Ipayipi lensimbi elivunguzayo eliphakathi nendawo (DN350-DN700): lisetshenziswa kakhulu kuwoyela, ipayipi legesi yemvelo kanye nepayipi lamanzi lezimboni.

3. ububanzi obukhulu Kuvunguza ipayipi lensimbi(DN750 - DN1200): isetshenziswa kumaphrojekthi okuhambisa amanzi amabanga amade, amapayipi kawoyela, amaphrojekthi amakhulu ezimboni, njengokuhamba okuphakathi.

4. Ipayipi elikhulu kakhulu elivunguzayo lensimbi (i-DN1300 nangaphezulu): lisetshenziselwa ikakhulukazi amaphrojekthi ahamba amabanga amade wamanzi, uwoyela negesi, amapayipi ahamba ngaphansi kolwandle kanye neminye imiklamo yengqalasizinda emikhulu.

Amazinga nezinkambiso
Ububanzi obujwayelekile kanye nokunye okucacisiwe kwepayipi lensimbi elivunguzayo kuvame ukukhiqizwa ngokuhambisana namazinga afanele kanye nezinkambiso, njenge:
1. Izindinganiso zamazwe ngamazwe:
I-API 5L: esebenza epayipini lokuthutha lensimbi, ibeka usayizi nezidingo zempahla yepayipi lensimbi elivunguzayo.
I-ASTM A252: isebenza kwipayipi lensimbi yesakhiwo, usayizi wepayipi lensimbi elivunguzayo kanye nezidingo zokukhiqiza.

 

2. Izinga Likazwelonke:
I-GB/T 9711: esebenza epayipini lensimbi lokuthuthwa kwemboni kawoyela negesi, icacisa izidingo zobuchwepheshe zepayipi lensimbi elivunguzayo.
I-GB/T 3091: esebenza ekuthuthweni koketshezi olunengcindezi ephansi enepayipi lensimbi elishiselwe, icacisa usayizi wepayipi lensimbi elivunguzayo kanye nezidingo zobuchwepheshe.