Umenziwezi wezindwangu zokugcina uwoyela osindayo (HFO) wensimbi engagqwayi-nsimbi e-China: Umhlahlandlela wokuthenga nobunjiniyela
Kwadalwa ngo 01.06
Umthengisi Wethangi Lokugcina Amafutha Anzima (HFO) Ensini Yensimbi Yase-China: Umhlahlandlela Wokuthenga Nobunjiniyela
Isitoreji sama-Heavy Fuel Oil (HFO) sidingidinga ubunjiniyela obukhethekile ngenxa yokujiya okuphezulu kukaphethiloli, okuqukethwe yi-sulfur, kanye nesidingo sokulawula izinga lokushisa. Ukuthola amathangi okugcina i-HFO enziwe ngensimbi engagqwali evela eShayina kunikeza izinzuzo ezinkulu zezindleko, kodwa impumelelo incike ekutholeni abakhiqizi abakwazi ukuletha ngokwezindinganiso eziqinile zamazwe ngamazwe (API 650, ASME). Lo mhlahlandlela uhlinzeka ngohlelo olusebenzayo lokuhlola ukuhambisana kwezobuchwepheshe, ukuhlanganiswa kwesistimu yokushisisa, kanye nekhwalithi yezinto zokwakha ekukhiqizeni kwaseShayina.
1. Inselele Yobunjiniyela: Ukugcina i-HFO
Ngokungafani nodizili noma uphethiloli, i-HFO ihlala inamathela noma ingaba yiqhwa ezingeni lokushisa elijwayelekile. Ukugcinwa okuphumelelayo kudinga okungaphezu nje kwesikhumba sensimbi; kudinga uhlelo oluhlanganisiwe lokulawula ukushisa.
● Ukuphathwa Kobukhwezi: I-HFO kumele ifudunyezwe ukuze ikwazi ukumpompa kahle. AmataNki kumele yakhelwe ngamapayipi ashisa ngomusi ngaphakathi noma izingubo zokufudumeza zikagesi ngaphandle.
● Izimo Zokugqwala: I-HFO ivame ukuba nesulfure. Ngokuhamba kwesikhathi, izinhlanganisela zesulfure zingadala izimo ezine-asidi ngaphakathi etangini. Insimbi engagqwali (ikakhulukazi i-316L noma i-304) ihlinzeka ngokuphila isikhathi eside kune-carbon steel kulezi zindawo ezinolaka.
● Izidingo Zokufakelwa Ukushisa: Njengoba i-HFO idinga ukuhlala ifudumele ($50^\circ C - 80^\circ C$ kuye ngohlobo), ukulahleka kokushisa kuyizindleko ezinkulu zokusebenza. Abakhiqizi kufanele banikele ngamaphakheji aphezulu okufakelwa ukushisa nokugqokisa (isibonelo, uboya bamatshe obunensimbi ye-aluminium noma insimbi engagqwali).
2. Ukuhlolwa Komkhiqizi: Izindinganiso Zobuchwepheshe
Lapho uhlola umkhiqizi waseShayina wezimbiza ze-HFO, ungahlalisi ngentengo kuphela. Sebenzisa lezi zindinganiso zobunjiniyela njengesisekelo sakho:
Izindlela | Umfutho Wezobunjiniyela |
Ikhodi Yokuklama | I-API 650 (Izinga Lamathangi Axhunyiwe Okugcina Uwoyela) |
Izinga Lokuxhuma | I-ASME Isigaba IX (Ukuhlolwa okuphelele kwe-radiography/ultrasonic kumalunga) |
Ikhwalithi Yezinto | Kufakazelwe i-316L/304 Stainless enama-Mill Test Reports (MTRs) |
Uhlelo Lokushisa | Kuklanyelwe i-viscosity kawoyela ethile (CST) nokudluliswa kokushisa |
Ukuqapha Ikhwalithi | Ukuhlolwa ngomuntu wesithathu (i-SGS, i-Bureau Veritas, noma i-Intertek) |
3. Isiqhathaniso: Ukukhethwa Kwezinto
Ngenkathi insimbi engagqwali iyikhetho elihle kakhulu ku-HFO, onjiniyela kufanele balinganise i-CAPEX ngokumelene nokwakheka kwamakhemikhali okukhethekile kukaphethiloli.
Isici | Insimbi Engagqwali (316L) | Insimbi Ye-Carbon (Ehlanganisiwe) |
Ukumelana Nokugqwala kwe-HFO | Kuhle kakhulu | Kulinganiselwe (Kudinga ukugcinwa njalo) |
Izindleko Zomjikelezo Wokuphila | Phansi (Akukho ukuphinda ukugqokisa) | Phezulu (Ukulungiswa okwenziwa njalo) |
Ukutshalwa kwezimali kokuqala | Phezulu | Phansi |
Ukugcinwa | Okuncane kakhulu | Phezulu |
Kunconyelwe | I-HFO enesulfure eliphezulu, Ugesi wokukhiqiza amandla obalulekile | I-HFO enesulfure ephansi, Isitoreji sesikhashana |
4. Izinto Ezibalulekile Okufanele Uzicabangele Ekuthengeni
Ukuze uqinisekise ukuthi iphrojekthi yakho iqhubeka ngaphandle kokubambezeleka, hlela inqubo yakho yokuthenga kanje:
1. Ukuqinisekiswa Komklamo Wokushisa: Nikeza umkhiqizi imininingwane yokujiya kwe-HFO yakho. Bacele ukuthi babale indawo edingekayo yokushisa. Uma bengakwazi ukuhlinzeka ngalezi zibalo, cishe bayisikhungo sokukhiqiza nje, hhayi uzakwethu wobunjiniyela.
2. Ukubika kwe-NDT: Ezitsheni ze-HFO, ubuqotho bezintambo abubhekwanga. Kudingeka ukuhlolwa okungu-100% kwe-radiographic (RT) emadaweni aphansi ezindaweni ezibucayi kanye nezintambo ezibucayi kakhulu.
3. Izinto Zokuhambisa: Izitsha ezinkulu zokugcina zivame ukuthunyelwa ngamaphaneli "akhiyiwe" noma izingxenye ezinkulu ezakhiwe. Qinisekisa ukuthi umenzi unolwazi ekuthunyelweni kwezinto ezithwalwa ezitsheni noma ukulayisha okukhulu ukuze kugwenywe ukulimala kokuqedwa kwensimbi engagqwali ngesikhathi sokuhamba.
4. "Hlanzekile ukuze kusetshenziswe uwoyela": Cela ukuthi umenzi alandele inqubo yokuhlanza eqinile. Izinhlelo zokugcina ze-HFO kumele zingabi namacashana ensimbi, udaka lokushisela, nothuli ngaphambi kokuba uwoyela ukhishwe, ngoba lezi zinto ezingcolile zingalimaza amaphampu namashuni angaphansi.
5. Imibuzo Evame Ukubuzwa (FAQ)
Q: Ngingasebenzisa isitsha samanzi esijwayelekile se-HFO?
A: Impela akunjalo. I-HFO idinga ukushisa, ukuvuleka okukhethekile, nokuhlanganiswa kokucisha umlilo (njengama-foam pourers) okungafani namathangi amanzi ajwayelekile. Ukusebenzisa umklamo othangi ongakafanele kubeka izingozi ezinkulu kwezokuphepha kanye nemvelo.
Q: Ingabe insimbi engagqwali idinga ama-coils okushisa angaphakathi?
A: Yebo, uma ugcina amafutha anamathelayo. Ungasebenzisa ama-steam coils noma ama-electric immersion heaters. Qinisekisa ukuthi izinto zokushisa zenziwe ngohlobo olufanayo lwe-stainless steel ukugwema ukubola kwe-galvanic.
Q: Ngiyiphatha kanjani ingozi yokuqoqeka kukadaka ethangini le-HFO?
A: I-HFO inokuqukethwe okuphezulu kukadaka. Umklamo wakho kufanele uhlanganise i-manway yokufinyelela ku-shell ukuze kuhlanjululwe ngezikhathi ezithile kanye nomklamo ophansi phansi oya ku-valve yokudonsa phansi ukuze uvumele "ukudonswa kukadaka."
Ukuthola amathangi okugcina i-HFO ensimbi engagqwali eChina kuyisu elisebenza kakhulu uma ubeka phambili ukuqinisekiswa kobunjiniyela kunokucaphuna kokuqala. Ngokufuna ukuthobela i-API 650, ukuqinisekisa izibalo zokuklama ezishisayo, nokuphoqelela ukuhlolwa komuntu wesithathu, ungathola izinhlelo zokugcina ezisebenza kahle eziqinisekisa ukusebenza kahle esikhungweni sakho samandla noma esikhungweni sasolwandle.
Ngabe usezigabeni zokuklama zesikhungo sokugcina i-HFO, noma udinga usizo lokuhlola ukuthi ibanga lakho elithile likawoyela ludinga izingubo zokushisa noma amapayipi angaphakathi omusi?
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