Indlela Yokukhetha Amavalvu Ebhola Okusetshenziswa Ngomkhumbi

Embonini yasolwandle, ukuthembeka nokuphepha akunakuxoxiswana ngakho. Yonke ingxenye—ikakhulukazi ama-valve—kumele isebenze ngokuqhubekayo ngaphansi kwezimo zemvelo ezinzima. Phakathi kwezinhlobo ezahlukene zama-valve,amavalvu ebholaZivelele ngomklamo wazo omncane, ukusebenza okulula, kanye nokusebenza kahle kokuvala. Kodwa ngezinto eziningi kanye nokucushwa okutholakalayo, ungayikhetha kanjani ivalvu yebhola efanele yokusetshenziswa komkhumbi

1. Cabanga Ngemvelo Yasolwandle

Izindawo zasolwandle ziphakathi kwezimo eziyinselele kakhulu kunoma yimuphi umshini wemishini. Amanzi anosawoti, umswakama, ukudlidliza, kanye nokushintshashintsha kwezinga lokushisa kungasheshisa ukugqwala nokuguguleka.

Ngakho-ke, isinyathelo sokuqala ukuthikhetha izinto zevalvuezingamelana nokugqwala futhi zigcine ukuqina isikhathi eside:

• ①Amavalvu Ebhola Lethusi– Ukumelana okuhle kakhulu nokugqwala emanzini olwandle; ilungele amapayipi amanzi olwandle, izinhlelo ze-ballast, kanye nezinhlelo zokupholisa.

• ②316 Amavalvu Ebhola Lensimbi Engagqwali– Ukumelana nokugqwala okuphezulu kanye namandla okusebenza; kufanelekile ezinhlelweni zokucindezela okuphezulu kanye namakhemikhali.

• ③Amavalvu Ebhola Lethusi– Kubiza kahle ukusetshenziswa kwamanzi ahlanzekile noma okungewona amanzi olwandle kodwa akukhuthazwa ukusetshenziswa kwamanzi olwandle ngqo.

2. Khetha Uhlobo Lokuxhumana Olufanele

Uhlobo lokuxhuma lunquma ukuthi ivalvu ihlangana kanjani ohlelweni lwamapayipi omkhumbi. Izinketho ezivame kakhulu yilezi:

• ①Amavalvu Ebhola Lokuphela Eline-Flanged– Inikeza ukuxhumana okuqinile kwemishini kanye nokulungiswa okulula. Kungcono kakhulu kumapayipi amakhulu kanye nezinhlelo zokucindezela okuphezulu.

• ②Amavalvu Ebhola Anentambo (Anezikulufo)– Incane futhi ilungele amapayipi amancane anobubanzi kanye nezinhlelo ezinomfutho ophansi.

• ③Amavalvu Ebhola Lokuphela Elihlanganisiwe– Nikeza uxhumano olungavuzi lutho lokufakwa unomphela, oluvame ukusetshenziswa ezinhlelweni ezibalulekile.

Uma ukuthembeka kanye nokulula kokuhlukaniswa kuyizinto eziza kuqala—njengasezinhlelweni zokupholisa noma zamanzi olwandle—ama-valve ebhola ane-flanged ngokuvamile ayathandwa.

3. Thola Ukucindezela Kwesistimu kanye Nokushisa

Izinhlelo zasolwandle zisebenza ngaphansi kwezingcindezi namazinga okushisa ahlukahlukene. Ukukhetha isilinganiso sokucindezela esifanele kuqinisekisa ukusebenza okuphephile nokuzinzile.

• Izilinganiso ze-①PN16–PN40 zivame ukusetshenziswa ezinhlelweni zasolwandle.

• ②Kumasistimu kaphethiloli noma e-hydraulic anomfutho ophezulu, ama-valve ensimbi engagqwali alinganiswe ngaphezu kwe-PN40 ayanconywa.

Ngaphezu kwalokho, cabanga ngokumelana nokushisa uma ivalvu isetshenziswa emakamelweni enjini noma eduze kwezishintshi zokushisa.

4. Khetha Umklamo Wevalvu Ofanele

Umklamo wangaphakathi wevalvu unquma ukusebenza kwayo kokuvala, izici zokugeleza, kanye nokufaneleka koketshezi oluthile.

• ①Amavalvu Ebhola Eligcwele– Nikeza ukugeleza okungenamkhawulo, kunciphisa ukulahleka kwengcindezi. Kuhle kakhulu ezinhlelweni lapho ukugeleza okusebenzayo kubalulekile khona.

• ②Amavalvu Ebhola Elincishisiwe– Incane futhi ingabizi kakhulu ngensizakalo evamile.

• ③Amavalvu Ebhola Elintantayo– Kuvamile kumapayipi amancane kuya kwaphakathi, okuvala ngokuqinile.

• ④Amavalvu Ebhola Afakwe I-Trunnion– Yakhelwe osayizi abakhulu kanye nezinhlelo zokucindezela okuphezulu, okuqinisekisa ukusebenza okuzinzile kokuvala.

Ezinhlelweni zemikhumbi lapho ukusebenza kahle kokugeleza kanye nokuthembeka kokuvala kubalulekile khona, amavalvu ebhola agcwele imbobo antantayo yiwona asetshenziswa kakhulu.

5. Hlola Izitifiketi Zasemanzini

Uma usebenza olwandle, ukuthobela imithetho kubalulekile. Khetha njalo ama-valve aqinisekiswe yiziphathimandla zasolwandle eziqashelwayo, njengalawa:I-DNV (Det Norske Veritas).LR (Irejista kaLloyd) kanyeI-ABS (Ihhovisi Lokuthumela LaseMelika).Lezi zitifiketi ziqinisekisa ukuthi i-valve ihlangabezana nekhwalithi yolwandle, izinto zokwakha, kanye nezindinganiso zokusebenza.

6. Beka phambili ukulungiswa okulula nokusebenza

Izinhlelo zasolwandle zidinga ama-valve okulula ukuwasebenzisa nokunakekela, ngisho nasezindaweni ezivalekile.Ama-valve ebhola ayathandwa ngoba ahlinzeka:

• ①Ukusebenza okusheshayo kokujika kwekota

• ②Isakhiwo esincane sezindawo zokufaka eziqinile

• ③Izidingo zokunakekelwa ezincane

Ukuze kube lula, cabanga ngama-ball valve anezibambo zokukhiya noma ama-operator egiya ukuze uthole ukuphepha okwengeziwe nokulawula.

Ukukhetha ivalvu yebhola efanele yokusetshenziswa komkhumbi kuncike enhlanganisela yezici—izinto ezibonakalayo, uhlobo lokuxhuma, isilinganiso sokucindezela, ukwakheka, isitifiketi, kanye nokulula kokulungisa.I-Qingdao I-Flow, sihlinzeka ngezinhlobonhlobo eziningiamavalvu ebhola lebanga lolwandleokuqinisekiswe yi-DNV, LR, kanye ne-ABS, okwenzelwe ukuletha ukusebenza okuhle kakhulu ezinhlelweni zemikhumbi. Kungakhathaliseki ukuthi ngamapayipi amanzi olwandle, amasekethe okupholisa, noma imigqa kaphethiloli, amavalvu ethu aqinisekisa ukusebenza okuphephile nokusebenza kahle olwandle.