Spiral welded pombi (SSAW) yemapurojekiti ekuchengetedza mvura anowanzo spiral welded simbi mapaipi ane madhayamita akakura, nekuti mvura inopfuura nepayuniti nguva yakakura, inogona kuvandudza zvakanyanya kushanda zvakanaka. Sezvo madziro emukati espiral simbi pombi achigara achigezwa nemvura, madziro emukati haawanzo kubatwa ne-anti-corrosion treatment, asi kunze kunenge kuri muchimiro chepamusoro, saka anti-corrosion inofanirwa kuitwa kugadzirisa. kukukurwa kwemvura uye kubuda kwezuva, saka zvinodikanwa zveanti-corrosion coatings zvakakwirira.

Pamberi peanticorrosion yepiral simbi mapaipi emapurojekiti ekuchengetedza mvura, pamusoro pepombi dzesimbi dzinofanirwa kuputirwa nejecha, uye giredhi rinofanira kusvika st2.5. Mushure mejecha, shandisa anti-corrosion primer pakarepo. Iyo anti-corrosion primer inowanzova epoxy zinc-rich pendi ine zinc inokwana 70% kana kudarika, yepakati iepoxy mica pendi, uye yekunze layer ndeye anti-oxidation uye corrosion. Polyurethane pendi.

Usati wabva mufekitori, iyo spiral simbi pombi inofanirwa kuongororwa ma mechanic properties, flattening uye flaring, uye inofanirwa kusangana nezvinodiwa zveyero. Spiral welded simbi mapaipi ane zvikuru kuchinjika muhupamhi dhayamita uye madziro ukobvu tsanangudzo, kunyanya mukugadzirwa kwepamusoro-giredhi makobvu-ane madziro pombi, kunyanya diki nepakati-dhayamita gobvu-nemadziro pombi. Pane zvimwe zvinodiwa maererano ne spiral simbi pombi yakatarwa. Iyo dhayamita uye saizi yakatarwa yemhando yespiral simbi pombi inofanirwa kudzorwa zviri nyore.

Kuitwa kweinjiniya yeanti-corrosion kunofanirwa kusangana nemamiriro anotevera isati yaitwa:

Kutanga, chirongwa uye mamwe magwaro ehunyanzvi akakwana, uye mifananidzo yekuvaka inofanirwa kuongororwa pamwe chete. Chechipiri, kuburitswa kwehunyanzvi kwechirongwa chekuvaka kunopedzwa, uye dzidziso yetekinoroji yekuchengetedza uye kudzidziswa kwehunyanzvi kunoitwa. Chechitatu, zvese zvishandiso, pombi mafirita uye zvigadziriso zvinofanirwa kunge zvine chitupa chefekitari, kana chitupa cheakaundi chinowirirana. Chechina, zvigadzirwa, michina, midziyo yekuvaka uye nzvimbo yakakwana. Chechishanu, panofanirwa kuve nemidziyo yekudzivirira yakavimbika yakachengeteka uye yakavimbika, uye mvura yekuvaka, magetsi, uye gasi zvinofanirwa kukwanisa kuzadzisa zvinodiwa pakuvaka zvinoramba zvichiitika.