Mumaguta ari kumahombekombe nenzvimbo dzine hunyoro hwakawanda, kugara kwenguva refu kwenzira yekudhonza mvura kunoenderana zvakananga nekuchengetedza, kushanda nekugadzirisa zvivakwa zvemaguta. Maguta akajairika ari kumahombekombe akadai seHong Kong neSingapore anotarisana nekukukurwa kwemvura nekuda kwemhepo ine munyu wakawanda uye mamiriro ekunze ane hunyoro gore rese. Mapaipi emvura esimbi echinyakare anowanzo kudonha nekukuvadzwa nekuda kwengura, uye anotokonzera kusvibiswa kwezvakatipoteredza uye njodzi dzakavanda muzvivakwa. Mukupindura padambudziko iri,DINSENyatanga chigadzirwa chitsva - mapaipi emvura akapfapfaidzwa nesimbi yakakandwa, ayo anotsanangura patsva mhinduro dzeindasitiri nemaitiro matsva uye mashandiro epamusoro-soro.
Nzvimbo yegungwa inokuvadza zvikuru mapaipi esimbi kupfuura nzvimbo dziri mukati menyika. Maion echloride ari mumunyu anosangana nehunyoro mumhepo kuti akurumidze kuoxidation yesimbi, zvichiita kuti zinc layer iri pamusoro pemapaipi ekare egalvanized iwire nekukurumidza, uye pakupedzisira ichikonzera ngura yemuviri wepaipi. Pamusoro pezvo, kuchinja kwekushisa nguva nenguva uye mwaranzi ye ultraviolet zvichawedzerawo kukwegura kwependi. Matekinoroji echinyakare ekudzivirira ngura (akadai se galvanizing yakajairika kana kupenda) akaoma kuchengetedza mhedzisiro yekudzivirira kwenguva refu mumamiriro ekunze akaomarara. Kutsiva mapaipi nguva dzose hakungoiti chete kuti mitengo ikwire, asiwo kunokanganisa mashandiro eguta.
Nguva yekudzivirira ngura ye zinc inopfapfaidzwa inopisa yakapetwa ka4-10 kupfuura yesimbi isina kugadziriswa.Musiyano chaiwo unoenderana nedanho renzvimbo uye mwero wekushanda. Pasi pemamiriro ekuvaka akajairwa, zinc inopfapfaidzwa inopisa inogona kupa dziviriro yenguva refu kwemakore anopfuura makumi maviri, nepo simbi isina kugadziriswa inogona kugara kwemakore matatu kusvika mashanu chete pasi penzvimbo imwe chete. Mufananidzo unotevera kuenzanisa zvakananga kwemapaipi esimbi akapfapfaidzwa nezinc uye asina kupfapfaidzwa nezinc. Rutivi rweruboshwe ipaipi yesimbi yakapfapfaidzwa nezinc (DN50 EN877:2021 A1 Z), uye divi rekurudyi ipaipi yesimbi yakapfapfaidzwa yakajairika.
Kushanda kwekudzivirira ngura kwemaitiro aya kwapasa bvunzo dzakaoma dzeEN877 standard (kusanganisirabvunzo yekupisa munyu, bvunzo yekuora kwecyclic, nezvimwewo).EN877 ndiyo chiyero chepamutemo chekusimbisa mapaipi emvura akaumbwa muEurope, icho chinopa zvinodiwa zvakarongeka zvehunhu hwemakanika, kuvhara uye kugona kudzivirira ngura kwemapaipi.Mapaipi esimbi akapfapfaidzwa neDINSEN akakodzera zvivakwa zvirefu, mapaipi akabatanidzwa pasi pevhu nedzimwe nzvimbo uko kuvaka kwakaoma nguva nenguva.Dzinoenderana zvizere neEN877 standard uye dzinofarirwa nevatengi vepamusoro nekuda kwekubatsira kwadzo mukudzivirira ngura.
Parizvino, chigadzirwa ichi chave chichishandiswa zvinobudirira muzvivakwa zvakawanda zvinokosha muHong Kong (zvakadai semafekitori ekutengeserana uye mapurojekiti ekuwedzera nhandare yendege), uye chave chichisimudzirwa zvishoma nezvishoma kunzvimbo dziri kumahombekombe dzakadai seSoutheast Asia neMiddle East. Kukosha kwacho hakungoratidzwi chete mukushanda kwacho kwehunyanzvi, asiwoInofarirwa nevatengi kuburikidza nekushandisa kwayo zvizere - kunyangwe mari yekutanga yakakwira zvishoma pane yemapaipi akajairwa, hunhu hwayo hwekuchengetedza kwenguva refu hunogona kuderedza mutengo wese neinopfuura 30%.
Pasi pekumanikidzwa kuviri kwekukura kwemaguta uye shanduko yemamiriro ekunze, "nzira isingaoneki yekudzivirira" yezvivakwa inofanira kukurumidza kuvandudzwa. Nehunyanzvi hwayo hutsva hwekudzivirira ngura uye chitupa chepamusoro-soro, mapaipi esimbi akapfapfaidzwa ne DINSEN anopa maguta emahombekombe mhinduro dzakavimbika uye dzinogara kwenguva refu dzemvura. Mune ramangwana, sezvo kudiwa kwemaguta akasimba pasi rose kuri kuwedzera, tekinoroji iyi inogona kutsanangura patsva chiyero cheindasitiri uye kukurudzira kushanduka kwemapaipi esimbi akapfapfaidzwa kubva ku "zvikamu zvinoshanda" kuenda ku "zvikamu zvakakosha".
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Nguva yekutumira: Chivabvu-23-2025
