Izindlu Zophahla Oluntantayo Ezokugcina Uwoyela Oluhlaza: Umhlahlandlela Wezobunjiniyela Nokuklama
Kwadalwa ngo 2025.08.11
Uphahla Oluntantayo Oluyisicaba Kumalondolozi Amafutha Akhandiwe: Umhlahlandlela Wobunjiniyela Nokuklama
Emkhakheni womhlaba wonke wezinto eziphakathi kwe-petroleum, uphahla oluntantayo—oluvame ukubizwa ngokuthi uhlobo olulodwa lwe-deck noma "uhlobo lwe-pan"—luyingxenye ebalulekile yokugcina uwoyela ongahluziwe. Ngokuntanta ngqo phezu kobuso boketshezi, lesi sakhiwo sokuphahla sisusa cishe isikhala sezinkungu (i-ullage) phakathi koketshezi nophahla lwethangi. Lo mklamo uhlelwe ngokuqondile ukuze unciphise ukushintsha kwama-volatile organic compounds (VOCs), ngaleyo ndlela kuthuthukiswe ukuphepha, kuncishiswe ukulahleka komkhiqizo, futhi kuqinisekiswe ukuthobela imithetho eqinile yezemvelo.
1. Isakhiwo Somzimba: Umklamo Wohlobo Lwe-Pan
Uphahla oluyisicaba oluntantayo" ngokuvamile lubhekisa kumklamo olulodwa noma "ohlobo lwe-pan". Ngokungafani nemikhumbi eyinkimbinkimbi noma imiqhele ephindwe kabili esebenzisa izindawo zomoya ezihlukanisiwe ukuze intante, uphahla oluhlobo lwe-pan luyisikhali esilula, esiyindilinga esisodwa.
● Umsebenzi Oyinhloko: Ukudala isithiyo esibonakalayo phakathi kwamafutha akhandiwe nomoya.
● Mekanika ye-Buoyancy: Indawo yonke yedeski inikeza i-buoyancy. Njengoba izinga loketshezi ethangini likhuphuka noma lehla, uphahla lulandela ubuso ngokuzenzakalelayo.
● Uhlelo loku-Seal: Isikhala phakathi kwekhopha le-tank nophahla oluntantayo sihlanganiswa kusetshenziswa i-shoe mechanical (eyinhloko kanye neyesibili) noma i-wiper seal, evimbela ukubaleka kukavapho.
2. Ukuqhathaniswa Kobunjiniyela: I-Flat/Pan vs. i-Pontoon vs. i-Double-Deck
Lapho kukhethwa umklamo wophahla lwenkonzo kawoyela ongahluziwe, onjiniyela kufanele balinganise izindleko ngokumelene nokuzinza komklamo nezidingo zokugcinwa.
Isici | Isicaba/Uhlobo Lwe-Pan | Uhlobo Lwe-Pontoon | Uhlobo Lwe-Double-Deck |
Umklamo Wokuzingezela | Indawo eyodwa (Ayikho imihlahlandlela) | Imikhumbi enezindawo | Uphahla oluvalekile ngokuphelele oluphindwe kabili |
Ukuqina Komqondo | Phansi (Ingozi yokuguduka) | Phezulu (Imihlahlandlela evikela ukwehluleka) | Phakeme Kakhulu (Okunamandla Kunazo Zonke) |
Izindleko | Okonga Kakhulu | Okulinganiselayo | Phezulu |
Ukunakekelwa | Phezulu (Ukuqapha ukukhathala kwe-weld) | Okulinganiselayo | Phansi Kakhulu |
Ukusetshenziswa Okujwayelekile | Amatańki amancane/aphakathi, i-HFO | Ama-crude volatile, esikali esikhulu | Izikhungo zokugcina ezinkulu kakhulu |
3. Izinto Ezibalulekile zobunjiniyela
Ukuklama noma ukulungisa uphahla oluntantayo lokugcina uwoyela ongahluziwe kudinga ukuthobela izindinganiso zemboni, ikakhulukazi i-API 650 (Amathangi Anamathiselwe Okugcina Uwoyela).
Izibalo Zokuntanta Nomthwalo
Uphahla kumele luhlale lunentanta ngisho nangaphansi kwemithwalo eyomile (isisindo sesakhiwo sokuphahla, imigodi yokungena, nezinye izinto) nemithwalo ephila (iqhwa, imvula, noma abasebenzi abalungisayo).
Uhlelo Lwesitembu Sokuqala
Uhlelo lwesitembu luyisici esibaluleke kakhulu sokulawula ukukhishwa. Isitembu esisebenza kahle kumele:
● Sigcine ukuthintana nodonga lwethangi kulo lonke uhambo olugcwele lwaphahla.
● Sibekezelele ukungabi nxazonxwe noma ukugobeka kwesikhumba ngenxa yokunwebeka/ukuncipha okubangelwa izinga lokushisa.
● Sivimbele ukuqoqeka kwezinsizi ezivutha kalula ekuqaleni.
Izinhlelo Zokudonsa Amanzi
Kwimikhiqizo ephahla ngaphandle enentantayo, ukuqoqeka kweqhwa noma imvula endaweni eyisicaba kuyingozi enkulu.
● Imisele Eguquguqukayo: Izinhlelo zamapayipi ezihlangene noma izivimbamgqomo ezinesisindo esinzima ziyadingeka ukukhipha amanzi kusuka ezingeni le-deck ngamafutha aluhlaza agcinwe ngaphandle kwethangi, ukuvimbela ukuwela uphahla.
4. Izinzuzo Zokusebenza Zamaphahla Entantayo
Ukusetshenziswa kwephahla elintantayo kuyindlela ephumelela kakhulu yokulawula ukukhishwa kwe-VOC ekugcinweni kwamafutha aluhlaza.
1. Ukucindezela Kukagwayi: Ngokuphelisa isikhala segwayi, ukulahleka kokushintsha kube igwayi kuncishiswa ngo->90% kuqhathaniswa namathangi anophahla oluqinile.
2. Ukuphepha: Ukungabikho kwamafu amakhulu agqamuka umlilo kunciphisa kakhulu ingozi yomlilo wethangi noma izenzakalo zokuqhuma.
3. Ikhwalithi Yomkhiqizo: Ukunciphisa ukuchayeka emoyeni kuvimbela "ukubola" kwamafutha aluhlaza—ukulahleka kwezingxenye ezikhanyayo, ezibalulekile ze-hydrocarbon.
5. Imibuzo Evame Ukubuzwa (FAQ)
Q: Kungani ukhetha uphahla oluyisicaba/oluntantayo phezu kweliphakathi kabili?
A: Ukonga izindleko kuyinto ebaluleke kakhulu. Amasimu ophahleni oluyisicaba asebenzisa insimbi encane futhi kulula ukuwenza, okwenza alungele amathangi amancane noma imikhiqizo ethile (njenge-Heavy Fuel Oil) lapho ukulahleka kwe-volatile kungaphansi.
Q: Yini ingozi enkulu kakhulu ngephahla oluyisicaba oluzingezayo?
A: Ingozi enkulu ukulahlekelwa ukuzingezela ngenxa yokuvuza kwesakhiwo. Ngokungafani nemiklamo ye-pontoon noma ye-double-deck enezindawo zokuzingezela eziphindaphindayo, uphahla oluyisicaba oluyisicaba ludinga ukuhlolwa okuqinile kwezindawo zonke.
Q: Ingabe i-API 650 iyayala uhlobo lophahla oluzingezayo?
A: I-API 650 ihlinzeka ngezidingo zesakhiwo samathangi ngokwawo (i-Appendix C ihlanganisa ophahleni olungaphakathi oluzingezayo). Ukukhethwa kohlobo oluthile lophahla (i-pan, i-pontoon, i-double-deck) kuvame ukuba umphumela wezicaciso zomnikazi-opharetha ngokusekelwe ku-volatility yomkhiqizo, ububanzi bethangi, kanye nesabelomali.
Izindlu ezingaluleki (ezohlobo lwe-pan) zihlala ziyisakhiwo esibalulekile embonini yokugcina uwoyela. Noma zidinga ukunakwa kakhulu ekuqinisweni kwezimbotshana nezinhlelo zokudonsa amanzi uma kuqhathaniswa nezimbili, ikhono lazo lokunciphisa kakhulu ukukhishwa kukagesi nokuthuthukisa ukuphepha kwendawo kubenza babe yimpahla ebalulekile kubasebenzisi bemithetho kawoyela. Njengoba imithetho ephathelene nekhwalithi yomoya nokulawulwa kokukhishwa kuhlala kuqinisa, ukugcinwa kahle nobunjiniyela bezinhlelo zalezi zindlu kuba kubaluleke kakhulu ekuqhubekeni komsebenzi.
Ngabe njengamanje nihlola ukuthuthukiswa kwesikhungo samathangi, noma ngabe nidinga isiqondiso sobuchwepheshe ekukhetheni umklamo ofanele ophahleni oluntantayo wezinga elithile lamafutha akhandiwe?
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