Mapaipi Akasungirirwa
Tsananguro yeZvigadzirwa
Mapaipi akasungirirwa, anozivikanwawo semapaipi esimbi akasungirirwa, anogadzirwa nekumonera mapurati esimbi kana zvidimbu kuita chimiro chechubhu wobva wabatanidza majoini. Pamwe chete nemapaipi asina musono, ndeimwe yemhando mbiri huru dzemapaipi esimbi. Zvinhu zvikuru zvawo kugadzirwa kuri nyore, mutengo wakaderera, uye mhando dzakasiyana dzemagadzirirwo.
I. Kupatsanurwa Kwepakati: Kupatsanurwa Nemaitiro Ekubatanidza
Maitiro akasiyana ekunamira ndiwo anosarudza mashandiro emapombi akanamira. Kune mhando nhatu huru:
• Mapaipi Akasungirirwa Enguva refu (ERW): Mushure mekumonera simbi kuita denderedzwa kana sikweya, musono unosungirirwa kwenguva refu (kureba) uchitevedza chubhu. Izvi zvinopa kushanda zvakanaka uye mutengo wakaderera, zvichiita kuti ive yakakodzera kutakurwa kwemvura ine simba shoma (senge mvura negasi) uye kushandiswa kwekutsigira chimiro. Maitiro akajairika anosanganisira dhayamita diki nepakati (kazhinji ≤630mm).
• Pipe Yakasungirirwa Yakakombama (SSAW): Chidimbu chesimbi chinomonerwa nenzira yakatenderedzwa uye musono unomonerwa panguva imwe chete, zvichigadzira weld inomonerwa yakatenderedzwa. Musono wakamonerwa wakamanikidzwa zvakaenzana, zvichipa simba rekusimba uye kukotama kwepamusoro kana tichienzanisa nepipe yakamonerwa yakatenderedzwa yakatenderedzwa. Izvi zvinobvumira kugadzirwa kwemapaipi ane dhayamita hombe (anosvika 3,000mm mudhayamita) uye anonyanya kushandiswa kutakura mvura ine simba guru (senge mapaipi emafuta negasi rechisikigo) uye mapaipi emvura emuguta.
• Pombi dzakasungirirwa nesimbi isina ngura: Dzakagadzirwa nesimbi isina ngura/strip, dzakasungirirwa uchishandisa maitiro akadai seTIG (tungsten inert gas arc welding) uye MIG (metal metal arc welding). Dzinogona ngura uye dzinodzivirira kupisa kwakanyanya sesimbi isina ngura uye dzakakodzera kushandiswa kwezvinhu zvemhando yepamusoro, zvakaita sekugadzira chikafu, makemikari, uye zvishandiso zvekurapa. Dzinowanzo shandiswa mumapombi madiki nepakati ane dhayamita chaiyo.
II. Zvakanakira Zvikuru
1. Mutengo Wakaderera uye Kugadzirwa Kwakakwirira: Kana tichienzanisa nepombi isina musono (inoda maitiro akaomarara akadai sekuboora nekumonera), pombi yakasungirirwa inopa kushandiswa kwakanyanya kwezvinhu zvakabikwa uye maitiro mapfupi ekugadzira. Mari inowanzo kuderedzwa ne20%-50% kana tichienzanisa nezvinodiwa zvakafanana. Uyezve, inogona kugadzirwa mumabatch uye nguva dzose kuti igutse kudiwa kukuru.
2. Magadzirirwo Anochinjika: Mapaipi ane dhayamita dzakasiyana (kubva pamamirimita mashoma kusvika pamamita akati wandei), ukobvu hwemadziro, uye zvikamu zvakachinjika (zvakatenderera, sikweya, uye rectangular) anogona kugadzirwa kana zvichidikanwa kuti agutse zvinodiwa zvemashandisirwo akasiyana-siyana, kusanganisira kuvaka nemaindasitiri.
3. Kugadzirisa Zviri Nyore: Zvinhu zvakafanana uye ma weld akagadzikana zvinoita kuti kucheka, kuboora, kukotama, uye mamwe mabasa ekugadzirisa zvive nyore, zvichiita kuti kuiswa kuve nyore.
III. Nzvimbo Huru dzeKushandiswa
• Indasitiri yekuvaka: Inoshandiswa mumapaipi emvura uye ekudhonza mvura, mapaipi ekudzivirira moto, zvinotsigira simbi (zvakadai sescaffolding uye machira emadziro), mafuremu egonhi nemahwindo (mapaipi akasungirirwa erectangular), nezvimwewo.
• Bazi reMaindasitiri: Rinoshandiswa semapaipi ekutakura mvura ine simba shoma (mvura, mhepo yakamanikidzwa, utsi), mapaipi anotsigira, zvidziviriro zvemumba, nezvimwewo; mapaipi ane dhayamita hombe anoshandiswa mumapaipi emafuta negasi rechisikigo ari kure.
• Chikamu cheManispa: Chinoshandiswa mumapombi emvura mumaguta, network dzemapaipi egasi (ane simba repakati nepasi), mapango emwenje yemumugwagwa, nzvimbo dzekudzivirira traffic, nezvimwewo.
• Hupenyu hwezuva nezuva: Mapaipi madiki akasungirirwa (akadai semapaipi esimbi isingatsvi) anoshandiswa mumabhureki efenicha uye mumapaipi ekicheni (akadai semapaipi eutsi emota yerange hood).
Kuratidzwa Kwechigadzirwa
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