Amapayipi ashiselwe ku-Spiral welded (SSAW) amaphrojekthi okongiwa kwamanzi ngokuvamile amapayipi ensimbi asongekile anobubanzi obukhulu ngokuqhathaniswa, ngenxa yokuthi amanzi adlulayo ngesikhathi seyunithi makhulu, angathuthukisa kakhulu ukusebenza kahle komsebenzi.Njengoba udonga lwangaphakathi lwepayipi lensimbi elivunguzayo lihlala ligezwa ngamanzi, udonga lwangaphakathi ngokuvamile aluphathwa nge-anti-corrosion treatment, kodwa ingaphandle ngokuvamile lisesimweni se-overhead, ngakho-ke i-anti-corrosion idinga ukwenziwa ukubhekana nayo. ukuguguleka kwemvula kanye nokuchayeka elangeni, ngakho-ke izidingo zezingubo zokulwa nokugqwala ziphezulu.

Ngaphambi kwe-anticorrosion yamapayipi ensimbi okuvunguza amaphrojekthi okonga amanzi, ingaphezulu lamapayipi ensimbi kufanele aqhunyiswe isihlabathi, futhi ibanga kufanele lifinyelele ku-st2.5.Ngemuva kokuqhuma kwesanti, sebenzisa i-anti-corrosion primer ngokushesha.I-anti-corrosion primer ngokuvamile ingupende onothile nge-epoxy zinc onokuqukethwe kwe-zinc okungama-70% noma ngaphezulu, indawo emaphakathi ingupende we-epoxy mica, futhi ungqimba olungaphandle luvikela i-oxidation nokugqwala.Upende we-polyurethane.

Ngaphambi kokushiya imboni, ipayipi lensimbi elivunguzayo kufanele lihlolwe izakhiwo zemishini, i-flattening kanye ne-flaring, futhi kufanele ihlangabezane nezidingo zezinga.Amapayipi ensimbi ashiselwe ku-Spiral anokuguquguquka okukhulu kububanzi bobubanzi nokucaciswa kodonga, ikakhulukazi ekukhiqizeni amapayipi anezindonga eziwugqinsi wezinga eliphezulu, ikakhulukazi amapayipi anezindonga eziwugqinsi nobubanzi obuphakathi.Kunezidingo ezengeziwe mayelana nokucaciswa kwepayipi lensimbi elivunguzayo.Ububanzi nobubanzi bokucaciswa kobukhulu bepayipi lensimbi elivunguzayo kufanele bulawuleke kalula.

Ukuqaliswa kobunjiniyela bokulwa nokugqwala kufanele kuhlangabezane nemibandela elandelayo ngaphambi kokuthi kuqaliswe:

Okokuqala, uhlelo kanye neminye imibhalo yezobuchwepheshe iphelele, futhi imidwebo yokwakha kufanele ibuyekezwe ngokuhlanganyela.Okwesibili, ukudalulwa kobuchwepheshe kohlelo lokwakha kuqediwe, futhi ukufundisa kobuchwepheshe bokuphepha nokuqeqeshwa okudingekayo kwezobuchwepheshe kuyasetshenziswa.Okwesithathu, zonke izinto ezisetshenziswayo, okokufakwa kwamapayipi nokufakwa kufanele kube nesitifiketi sefekthri, noma isitifiketi se-akhawunti esihambisanayo.Okwesine, izinto zokwakha, imishini, izinto zokwakha kanye nesiza kuphelele.Okwesihlanu, kufanele kube nezinto zokuvikela ezinokwethenjelwa eziphephile nezithembekile, futhi amanzi okwakha, ugesi, negesi kufanele kukwazi ukuhlangabezana nezidingo eziqhubekayo zokwakha.