Spiral welded Simbi pombi yePasi pevhu zvakasikwa gasi pombi
Suma:
Pasi pevhu zvakasikwa gasi pipi pipi pleveline vanoita basa rakakosha mukuendesa iyi yakakosha zviwanikwa mudzimba, mabhizinesi uye maindasitiri. Kuve nechokwadi chekuchengetedza uye kushanda kweiyi pombi, zvakashora kushandisa zvinhu zvakaringana uye maitiro ekugadzira panguva yekuvaka. Isu tichaongorora kukosha kwekupfira kwesimbi pombi uye kukosha kwekutevera pombi yakakodzera yelding maitiro kana uchishanda nayePasi pevhu zvakasikwa gasi pombi.
Spiral welded pombi:
Spiral welded pombi yakakurumbira mukuvakwa kwepasi pevhu zvakasikwa gasi gasi pipi nekuda kwesimba rayo rinoyevedza uye kusimba. Iyi pombi inogadzirwa nekukotama tambo inoenderera mberi yesimbi mune yekupfira chimiro uye wozotizve neeams. Mhedzisiro yacho ndeye pombi ine majoini akasimba, akaiswa chisimbiso anogona kutsungirira kwakakosha kwekunze kwekunze uye kujairana nekufambisa kwekufamba. Ichi chimiro chakasarudzika chinoitaSpiral Watched Simbi PipiYakanakira pasi pevhu pombi dzinofanira kugadzikana.
Mechanical Pfuma
| Giredhi a | Giredhi b | Giredhi c | Giredhi d | Giredhi e | |
| BAILD Simba, Min, MPA (KSI) | 330 (48) | 415 (60) | 415 (60) | 415 (60) | 445 (66) |
| Simba Resimba, Min, MPA (KSI) | 205 (30) | 240 (35) | 290 (42) | 315 (46) | 360 (52) |
Chemical Composition
| Element | Kuumbwa, max,% | ||||
| Giredhi a | Giredhi b | Giredhi c | Giredhi d | Giredhi e | |
| Kabhoni | 0.25 | 0.26 | 0.28 | 0.30 | 0.30 |
| Manganese | 1.00 | 1.00 | 1.20 | 1.30 | 1.40 |
| Phosphorous | 0.035 | 0.035 | 0.035 | 0.035 | 0.035 |
| Sarufa | 0.035 | 0.035 | 0.035 | 0.035 | 0.035 |
Hydrostatic test
Kureba kwepepe kuchaidzwa nemugadziri kune hydrostatic kumanikidza kuchagadzira madziro kushushikana kwekushaiwa makumi matanhatu muzana yeiyo yakasarudzika shuwa simba rekubereka tembiricha. Dzvinyiriro ichatsanangurwa neiyo inotevera equation:
P = 2st / d
Zvinotenderwa kusiyana kwehuremu uye zviyero
Kureba kwega kwega kwembwa kucharemerwa zvakasiyana uye kurema kwayo hakuzopindirane kupfuura gumi muzana pamusoro kana 5.5% pasi pehuremu hwayo uye huremu hwayo uye huremu hwayo pahurefu.
Iyo yekunze dhisiki haizosiyane kupfuura ± 1% kubva pane yakatarwa zita rekunze kunze kwedhimoni.
Kukudza kwemadziro chero nguva hakusi kupfuura gumi nemairi% pasi peiyo yakataurwa madziro.
Kureba
Hurefu hwakasarudzika: 16 kusvika 25ft (4.88 kusvika 7.62m)
Kaviri akareba kureba: Pamusoro pe25ft kusvika ku15ft (7.62 kusvika 10.67m)
Yunifomu Yakareba: Inotenderwa Kusiyana ± 1in
Magumo
Pipe Piles ichagadzirwa nebani magumo, uye burrs kumahombekombe
Kana iyo pombi yekupedzisira yakatsanangurwa kuve yechiodzwa magumo, iyo angle ichave nemakumi matatu kusvika ku35 degree
PIPE Welding maitiro:
ZvakakodzeraPIPE Welding maitirovanokoshesa kusimba uye kuchengetedzeka kwepasi pevhu rakasikwa gasi gasi peigine. Heano mashoma mashoma ekufunga nezve:
1. Welder hunhu:Vanokwanisa uye vane ruzivo veValders vanofanirwa kuve vakabatikana, vanoverengera ivo vane mvumo inodiwa uye hunyanzvi hwekugadzirisa maitiro ehutachiona anodikanwa kune yakasikwa gasi peigine. Izvi zvinobatsira kuderedza njodzi yekuisa urema uye kugona kugona.
2. Kugadzirira kukuru uye kuchenesa:Kugadzirira kwakakodzera kwakakosha kwakakosha usati wabereka. Izvi zvinosanganisira kubvisa chero tsvina, marara kana zvinangwa izvo zvinogona kukanganisa kutendeka kweiyo Wel. Pamusoro pezvo, kupembera mapipi edges anobatsira kugadzira yakasimba yakabatanidzwa.
3. Tulding maitiro uye parameter:Ruramisa tulating maitiro uye paramita dzinofanira kuteverwa kuti uwane yakakwirira-mhando maWels. Maitiro ekutarisa anofanirwa kufunga nezvezvinhu zvakadai seye pipe tsickness, kuumbwa kwegasi, etc.
4. Kuongorora uye kuyedza:Kunyatsoongorora uye kuongororwa kweWeld kwakakosha kusimbisa kunaka kwayo uye kutendeka. Tekinoroji dzakadai sekuti dzisiri-dzinoparadza (NDT), kusanganisira X-ray kana ultrasonic kuongororwa, kunogona kuona chero zvingangoita zvikanganiso zvinogona kukanganisa kutevedzana kwenguva refu kwepombi.
Mukupedzisa:
Kuvakwa kwepasi pevhu repasi pepasi peganda pipi uchishandisa spiral weled simbi pombi inoda kutevedzera pombi yemapipi elding. Nekurovesa maWelders anokwanisa, achinyatso kugadzirira majoini, achitevera nzira dzekutengesa dzakakodzera, uye nekufungisisa zvakanyatsonaka, tinogona kuona kuchengetedzeka, kusakwana, uye kugona kweiyi pombi idzi. Kuburikidza nokungwarira kwakadzama mumamiriro ekutenderera
