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Nhanganyaya yemidziyo yevharuvhu yekubvisa mvura yegungwa

Mumakore achangopfuura, nekuvandudzwa kwemararamiro evanhu uye kusimukira kwemaindasitiri, kushandiswa kwemvura yakachena kwakawedzera gore negore.Kuti dambudziko remvura rigadziriswe, zvirongwa zvakawanda zvakakura zvekubvisa munyu zviri kuvakwa zvakanyanya munyika.Mukuita kwemvura yegungwa desalination, kunyanya kutarisisa kunofanirwa kubhadharwa pakuora kwekloridi kumidziyo.Valvezvinetso zvenyama zvinowanzoitika pakuyerera-kuburikidza nezvikamu.Parizvino, zvinhu zvikuru zvevharuvhu yekuchenesa mvura yegungwa ndeye nickel-aluminium bronze, simbi isina tsvina, duplex simbi isina tsvina uye ductile iron + simbi coating.

Nickel Aluminium Bronze

Nickel-aluminum bronze ine yakanakisa kupikisa kushushikana kwekupwanya corrosion, kuneta corrosion, cavitation corrosion, erosion resistance uye marine organism fouling.Kana ichienzaniswa nesimbi isina tsvina mumvura yegungwa ine 3% NaCI, nickel-aluminum bronze alloy ine yakanyanya kupikisa kukuvadzwa kwecavitation.Kuora kwenickel aluminum yebhuronzi mumvura yegungwa kuri kuita ngura uye kukoromoka.Nickel-aluminum bronze inonzwa nekumhanya kwemvura yegungwa, uye kana kumhanya kwacho kuchidarika kukurumidza kwakaoma, kukora kunowedzera zvakanyanya.

Simbi isina ngura

Iyo corrosion resistance yesimbi isina tsvina inosiyana nemakemikari echinyorwa.304 simbi isina tsvina inoshingirira kugomba nekupwanya kukoromoka munzvimbo yemvura ine chlorides, uye haigone kushandiswa sechinhu chinoyerera-kuburikidza mumvura yegungwa.316L is austenitic Stainless simbi ine molybdenum, iyo inopikisa zvirinani kune general corrosion, pitting corrosion uye crack corrosion.

Ductile Iron

Kuti uderedze mutengo wepurojekiti, muviri wevharuvhu unotora ductile iron lining EPDM, uye valve disc inotora ductile iron lining anti-corrosion coating.

(1) Ductile iron lining Halar

Halar is alternating copolymer ye ethylene uye chlorotrifluoroethylene, semi-crystalline uye melt-processable fluoropolymer.Iyo ine yakanaka corrosion kuramba kune akawanda organic uye organic makemikari uye organic zvinonyungudutsa.

(2) Ductile iron lining Nylon11

Nylon11 ndeye thermoplastic uye chirimwa-based coating, iyo inogona kudzivirira kukura uye kukura kwefungi.Mushure memakore gumi ekuedzwa kunyudzwa kwemvura yemunyu, simbi yepasi haina zviratidzo zvekuora.Kuti uve nechokwadi chekugadzikana kwejasi uye kunamatira kwakanaka, tembiricha yekushandisa yeNylon11 haifanire kudarika 100 ℃ kana ichishandiswa mukuputira butterfly plate.Kana iyo inotenderera svikiro ine abrasive particles kana anogara achichinja mashandiro, hazvina kukodzera kushandisa coating.Mukuwedzera, kuvhara kunofanira kudzivirirwa kubva pakukweshwa uye kusvunurwa panguva yekufambisa uye kuisa.

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Nguva yekutumira: Zvita-17-2021