Amathiphu Okukhetha Nokusebenzisa Ama-Valve Okusiza Ukucindezeleka

1. Qonda Inhloso Nemibandela Yokusebenzisa

Ngaphambi kokukhethaivalvu yokusiza ukucindezeleka, chaza ngokucacile ukuthi kungani nokuthi izosetshenziswa kuphi. Izinhlelo ezahlukene zibeka izidingo ezahlukene ku-PRV. Izici ezibalulekile zifaka:

• ①Uhlobo loketshezi (uketshezi, igesi, umusi, noma izinto ezigqwalisayo)

• ②Ingcindezi yokusebenza evamile kanye nokushisa

• ③Ingcindezi yokusebenza ephezulu evumelekile (MAWP)

• ④Imvamisa yokushintshashintsha kwengcindezi

Ivalvu eyenzelwe isevisi yomusi, isibonelo, ingase ingasebenzi ngokuphephile ezinhlelweni zoketshezi. Ukuqondanisa uhlobo lwevalvu nezimo zokusebenza zangempela kuyisisekelo sokukhetha okuphephile.

2. Khetha Isethi Yokucindezela Efanele

Ingcindezi esethiwe inquma ukuthi ivalvu izovuleka nini ukuze kuncishiswe ingcindezi eyengeziwe. Kufanele kube njalo:Ngaphansi kwengcindezi ephezulu evumelekile yesistimu.Ingcindezi yokusebenza engaphezu kwejwayelekile ukuze kugwenywe ukukhushulwa okubangela izinkinga.

Njengomthetho ojwayelekile, ingcindezi esethiwe ivame ukuba phezulu ngo-10–15% kunengcindezi yokusebenza evamile, kuye ngezindinganiso nemithethonqubo yesistimu. Ingcindezi esethiwe engalungile ingenye yezimbangela ezivame kakhulu zokungasebenzi kahle kwe-PRV.

3. Khetha Uhlobo Lwevalvu Olufanele

• Amavalvu okusiza agcwele intwasahlobo: Isetshenziswa kabanzi, isakhiwo esilula, esifaneleka kakhulu ezinhlotsheni eziningi zezimboni

• Amavalvu okusiza aqhutshwa yi-pilot: Kuhle kakhulu ezinhlelweni ezinengcindezi ephezulu ezisebenza kahle futhi zivuza kancane

• Ama-valve okusiza ukushisa: Yakhelwe ukuvikela ekukhuphukeni kwengcindezi okubangelwa ukwanda koketshezi ngokushisa

Ukuqonda izinzuzo kanye nemikhawulo yohlobo ngalunye kuqinisekisa ukusebenza kahle kanye nokuphila isikhathi eside kwesevisi.

4. Naka Izinto Ezisetshenziswayo Nezindinganiso

• ①Ithusi lezinhlelo zamanzi ezijwayelekile

• ②Thunga insimbi noma insimbi engagqwali ukuze uthole imidiya enomfutho ophezulu noma egqwalisayo

• ③Izinsimbi zethusi zokusetshenziswa kwasolwandle

Ngaphezu kwalokho, qinisekisa ukuthi i-valve ihambisana nezindinganiso zamazwe ngamazwe ezifanele njenge-ASME, API, ISO, noma ukuvunyelwa kokuhlukaniswa kwemikhumbi lapho kufanele khona.

5. Ukufakwa Okufanelekile Kubalulekile

• ①Faka ivalvu ngendlela efanele

• ②Qinisekisa ukuthi amapayipi okungena amfushane, aqondile, futhi awanayo imingcele

• ③Gwema ukucindezela okukhulu komhlane endaweni yokukhipha umoya

• ④Ungalokothi ufake ama-valve okuzihlukanisa phakathi kwe-PRV nemishini evikelwe ngaphandle kokuthi kuvunyelwe yikhodi.

Ukufakwa kahle kuqinisekisa impendulo esheshayo kanye nokukhululeka okunembile kwengcindezi lapho kubaluleke kakhulu.

6. Sebenzisa iValvu Ngaphakathi Kwemikhawulo Yayo Yokuklama

Amavalvu okusiza ukucindezeleka ayizinto zokuphepha, hhayi amavalvu okulawula. Gwema ukuwasebenzisa ukulawula ukucindezeleka njalo. Ukuphakamisa okuqhubekayo noma okuphindaphindiwe kungaholela ku:Ukugqoka isihlalo.Ukuvuza.Ukunemba okuncishisiwe kwengcindezi esethiwe.

Ukusebenza kohlelo oluzinzile kwandisa kakhulu impilo ye-PRV futhi kugcina ukuthembeka kwayo.

7. Ukuhlolwa Okuvamile Nokuhlolwa

Ukuhlolwa nokugcinwa njalo kubalulekile. Imikhuba emihle ihlanganisa:

• ①Ukuhlolwa okubonakalayo ngezikhathi ezithile ukuze kubonakale ukugqwala, ukuvuza, noma ukuvaleka

• ②Ukuhlolwa kokusebenza ngokwezinga lokubaluleka kwesistimu

• ③Ukulungiswa kabusha noma ukushintshwa ngokusekelwe ezincomweni zomkhiqizi

Ezinhlelweni ezibalulekile zokuphepha, amarekhodi okuhlola abhalwe phansi avame ukudingwa yimithethonqubo kanye nezinhlangano zokuhlela.

8. Shintsha Amavalvu Agugile Noma Alimele Ngokushesha

Amavalvu okusiza ukucindezeleka awazona izingxenye zokuphila konke. Izipilingi zingaba buthaka, izihlalo zingaguguleka, futhi izivalo zingaqina ngokuhamba kwesikhathi. Uma ivalvu ibonisa izimpawu zokuvuza okuphindaphindiwe, ukusebenza okungazinzile, noma umonakalo ongokwenyama, ukushintshwa kuvame ukuphephile futhi konga imali kunokulungisa.