Iyo ngarava inopedza gasi kurapwa system (kunyanya kusanganisira denitration uye desulfurization subsystems) ndiyo yakakosha kuchengetedza nharaunda midziyo yengarava inodiwa kuti iiswe neInternational Maritime Organisation (IMO) MARPOL gungano.Inoita desulfurization uye denitration kurapwa kusingakuvadzi kune gasi rekuburitsa rechikepe chedhiziri injini kudzivirira kusvibiswa kwemhepo kunokonzerwa nekusadzora kuburitsa kwechikepe exhaust gasi.
Tichifunga nezvekuwedzera kuziva nezvekuchengetedzwa kwezvakatipoteredza uye kuwedzera kuzivikanwa kwevaridzi vezvikepe, kudiwa kwemusika kwengarava exhaust gasi kurapwa masisitimu kwakakura.Tevere, isu tichakurukura newe kubva kune zvakatemwa zvinodiwa uye masisitimu ehurongwa:
1. Zvinoenderana nezvinodiwa
Muna 2016, Tier III yakatanga kushanda.Zvinoenderana nechiyero ichi, ngarava dzese dzakavakwa mushure meNdira 1, 2016, iine injini huru yekuburitsa simba re130 kW uye pamusoro, ichifamba muNorth America neUS Caribbean Emission Control Area (ECA), iyo NOx emission kukosha haipfuure 3.4 g. /kWh.IMO Tier I uye Tier II zviyero zvinoshanda pasi rose, Tier III inogumira kunzvimbo dzekudzora kuburitsa, uye nzvimbo dzegungwa dziri kunze kwenzvimbo iyi dzinoitwa zvinoenderana neTier II zviyero.
Zvinoenderana nemusangano weIMO wa2017, kubva muna Ndira 1, 2020, muganho wepasi rose 0.5% sulfur uchaitwa zviri pamutemo.
2. Nheyo ye desulfurization system
Kuti zvisangane nekuomesera kwezvikepe zvesarufa emission standard, vafambisi vengarava vanowanzo shandisa yakaderera-sarufa mafuta emafuta, exhaust gasi kurapwa masisitimu kana yakachena simba (LNG dual-fuel engines, etc.) nedzimwe mhinduro.Kusarudzwa kwechirongwa chakananga kunowanzotariswa nemuridzi wechikepe pamwe nekuongororwa kwehupfumi hwechikepe chaicho.
Iyo desulfurization system inotora composite wet tekinoroji, uye akasiyana EGC masisitimu (Exhaust Gasi Yekuchenesa System) anoshandiswa munzvimbo dzakasiyana dzemvura: yakavhurika mhando, yakavharwa mhando, yakasanganiswa mhando, nzira yemvura yegungwa, magnesium nzira, uye sodium nzira yekusangana nemutengo wekushandisa uye kubuda. .musanganiswa wakakwana unodiwa.
Nguva yekutumira: Aug-16-2022