Muindasitiri yemafuta, ngura yemapombi inotyisa zvikuru kuchengetedzeka kwekushanda, kuchengetedzwa kwezvakatipoteredza, uye kushanda zvakanaka kwehupfumi. Mapombi anowanzo takura zvinhu zvinoparadza zvakaita semafuta asina kucheneswa, gasi rechisikigo, makemikari esulfur, acids, uye alkalis, zvichiita kuti kudzivirira ngura yemapombi kuve chinhu chinonyanya kukosheswa muinjiniya. Chinyorwa chino chinoongorora nzira dzinoshanda zvakanyanya dzekudzivirira ngura mumapombi emafuta, kusanganisira kusarudzwa kwezvinhu, kudzivirira pamusoro, kudzivirira cathodic, uye kutarisa ngura.
Kusarudzwa Kwezvinhu: Mutsetse Wekutanga Wekudzivirira
Kusarudza zvinhu zvinodzivirira ngura kunowedzera hupenyu hwemapaipi. Sarudzo dzakajairika dzinosanganisira:
| Zvinhu | Rudzi | Zvinhu Zvikuru | Nzvimbo Yekushandisa |
|---|---|---|---|
| 316L | Simbi Isina Kusimba YekuAustenitic | Kudzivirira makomba zvakanaka; inogona kusundirwa | Kuwanikwa kweasidhi, chloride |
| S32205 / S32750 | Duplex / Super Duplex | Simba guru, kuramba kwakanaka kwechloride | Mapaipi emvura ine hunyoro ari kunze kwenyika |
| Inconel 625 / 825 | Nickel Alloy | Kuramba kwakanyanya kune acid yakasimba uye alkali | Kubvisa sulfurization, masisitimu anodziya zvakanyanya |
| Simbi yeKabhoni ine Mapeteni | Simbi Yakagadzirwa Nemitsetse | Inodhura zvishoma, ngura inodzivirirwa nejira remukati | Mafuta ane sarufa yakawanda, mitsetse ine simba shoma |
Kufukidza Pamusoro: Chidziviriro Chemuviri Chekurwisa Kuora
Kupfeka kwekunze nekwemukati kunopa dziviriro yekudzivirira zvinhu zvinoparadza:
• Kuputira epoxy netara yemarasha:Nzira yechinyakare yekuisa mapaipi akavigwa.
• Fusion Bonded Epoxy (FBE):Kuramba kupisa kwakanyanya uye kunamira kwakasimba.
• Kuputira kwePE / PP kwezvikamu zvitatu:Inoshandiswa zvakanyanya pakufambisa mapaipi ekufambisa zvinhu kure.
Mapendi emukati: Deredza kusapindirana kwemvura uye kudzivirira kubva mukuora kwemadziro emukati.
Kugadzirira uye kushandisa zvakanaka pamusoro pechiso kwakakosha pakubudirira kwezvipfeko izvi.
Kudzivirirwa kweCathodic: Tekinoroji yeElectrochemical Anti-Corrosion
Kudzivirirwa kweCathodic kunodzivirira ngura yemagetsi nekumanikidza pamusoro pepombi kuti ishande se cathode:
• Sisitimu yeAnode yechibayiro: Inoshandisa anode dzezinc, magnesium, kana aluminium.
• Sisitimu yemagetsi yakasimbiswa: Inoshandisa simba rekunze kuti ishandise magetsi.
Nzira iyi inowanzoshandiswa mumapaipi akavigwa uye ari pasi pegungwa, kazhinji inosanganiswa nependi kuti ishande zvakanaka.
Kutarisa uye Kugadzirisa Kuora
Kugara uchitarisa kunoita kuti ngura ionekwe nekukurumidza, zvichideredza njodzi dzekukundikana:
• MaProbes eKuramba Kwemagetsi uye Kutarisa Ruzha rweElectrochemical kuti zviongororwe panguva chaiyo;
• Kuyera Ukobvu hweUltrasonic kuti paonekwe kutetepa kwemadziro;
• Makuponi eKuora ekuongorora mwero wekuora nekufamba kwenguva.
Kugadzira ongororo dzenguva dzose, hurongwa hwekuchenesa, uye kurapwa nemakemikari kunobatsira kuchengetedza kuvimbika kwepombi.
Kutevedzera Mitemo yeIndasitiri
Iva nechokwadi chekuti dhizaini yemapaipi ako uye nzira dzekudzivirira dzinoenderana nemitemo yepasi rose:
ISO 21809 - Miyero yekuputira yekunze yemapaipi muindasitiri yepeturu negasi rechisikigo;
NACE SP0169 - Zvinodiwa zvekudzivirira Cathodic;
API 5L / ASME B31.3 - Mipimo yekuvaka mapaipi emuchina wekubatanidza nekugadzira mapaipi.
Mhedziso: Nzira Yakabatana Yekudzivirira Kwenguva Refu
Kudzivirira ngura yemapaipi zvinobudirira kunoda nzira dzakasiyana-siyana, dzinosanganisira:
• Kusarudza zvinhu zvine hungwaru,
• Masisitimu ekuputira akasimba,
• Dziviriro inoshanda ye cathodic, uye
• Zvirongwa zvekuchengetedza nekutarisa zvinovimbika.
Nekushandisa sisitimu yakazara yekugadzirisa ngura, vashandi ve petrochemical vanogona kuderedza kuvharwa kwemagetsi kusina kurongwa, kuwedzera hupenyu hwemidziyo, uye kuona kuti mashandiro akachengeteka uye anoshanda zvakanaka.
Nguva yekutumira: Chivabvu-27-2025