Isingeniso: Kungani amazinga e-API ebaluleke kangaka kuma-valve ezimboni?
Ezimbonini ezinobungozi obukhulu njengowoyela negesi, amakhemikhali kanye namandla, ukuphepha nokuthembeka kwamavalvu kungathinta ngqo ukuzinza kwezinhlelo zokukhiqiza. Izindinganiso ezibekwe yi-API (i-American Petroleum Institute) ziyibhayibheli lobuchwepheshe lamavalvu ezimboni emhlabeni jikelele. Phakathi kwazo, i-API 607 kanye ne-API 608 yizincazelo ezibalulekile ezivame ukucashunwa onjiniyela nabathengi.
Lesi sihloko sizohlaziya ngokujulile umehluko, izimo zokusetshenziswa kanye namaphuzu okuhambisana nalezi zindinganiso ezimbili.
Isahluko 1: Ukuchazwa okujulile kwe-API 607 standard
1.1 Incazelo ejwayelekile kanye nomsebenzi oyinhloko
I-API 607 "Incazelo yokuhlolwa komlilo yama-valve angu-1/4 okujika kanye nama-valve esihlalo sama-valve angewona awensimbi" igxile ekuqinisekiseni ukusebenza kokuvala kwama-valve ngaphansi kwezimo zomlilo. Uhlelo lwakamuva lwesi-7 lukhulisa izinga lokushisa lokuhlola kusuka ku-1400°F (760°C) kuya ku-1500°F (816°C) ukuze kulingisa izimo zomlilo ezinzima kakhulu.
1.2 Incazelo eningiliziwe yamapharamitha okuhlola ayisihluthulelo
- Ubude bomlilo: imizuzu engama-30 yokushisa okuqhubekayo + imizuzu eyi-15 yesikhathi sokupholisa
- Izinga lokuvuza elijwayelekile: Ukuvuza okuphezulu okuvunyelwe akudluli i-ISO 5208 Izinga A
- Indawo yokuhlola: Ukuhlolwa okuhlanganisiwe kwegesi evuthayo (i-methane/igesi yemvelo) namanzi
- Isimo sokucindezela: Ukuhlolwa okunamandla kwama-80% okucindezela okulinganiselwe
Isahluko 2: Ukuhlaziywa kobuchwepheshe kwe-API 608 standard
2.1 Indawo ejwayelekile kanye nobubanzi bokusetshenziswa
I-API 608 "Amavalvu ebhola lensimbi aneziphetho ze-flange, iziphetho zentambo kanye neziphetho zokushisela" ilinganisa izidingo zobuchwepheshe zenqubo yonke kusukela ekwakhiweni kuya ekukhiqizweni kwamavalvu ebhola, ehlanganisa ububanzi bosayizi be-DN8 ~ DN600 (NPS 1/4 ~ 24), kanye nezinga lokucindezela le-ASME CL150 kufika ku-2500LB.
2.2 Izidingo zomklamo oyinhloko
- Isakhiwo somzimba we-valve: imininingwane yenqubo yokuphonsa ingxenye eyodwa/ehlukanisiwe
- Uhlelo lokuvala: izidingo eziphoqelekile zomsebenzi we-double block kanye ne-bleed (DBB)
- I-torque yokusebenza: amandla okusebenza aphezulu awadluli ku-360N·m
2.3 Izinto ezibalulekile zokuhlola
- Ukuhlolwa kwamandla egobolondo: ingcindezi elinganiswe izikhathi ezingu-1.5 imizuzu emi-3
- Ukuhlolwa kokuvala: Ukuhlolwa kwengcindezi okuphindwe kabili okulinganiselwe izikhathi ezingu-1.1
- Impilo yomjikelezo: okungenani ukuqinisekiswa kokusebenza okugcwele okungu-3,000 kokuvula nokuvala
Isahluko 3: Umehluko oyinhloko emihlanu phakathi kwe-API 607 ne-API 608
| Ubukhulu bokuqhathanisa | I-API 607 | I-API 608 |
| Indawo ejwayelekile | Isitifiketi sokusebenza komlilo | Imininingwane yokuklama umkhiqizo kanye nokukhiqiza |
| Isigaba esisebenzayo | Isigaba sokuqinisekiswa komkhiqizo | Inqubo yonke yokuklama nokukhiqiza |
| Indlela yokuhlola | Ukulingisa umlilo obhubhisayo | Ukuhlolwa okuvamile kokucindezela/ukusebenza |
Isahluko 4: Isinqumo sokukhetha ubunjiniyela
4.1 Inhlanganisela ephoqelekile yezindawo ezinobungozi obukhulu
Kumapulatifomu asogwini lolwandle, ama-terminal e-LNG nezinye izindawo, kunconywa ukuthi ukhethe:
I-valve yebhola ye-API 608 + isitifiketi sokuvikela umlilo se-API 607 + isitifiketi sezinga lokuphepha le-SIL
4.2 Isixazululo sokwenza ngcono izindleko
Ngezimo zokusebenza ezivamile, ungakhetha:
I-valve ejwayelekile ye-API 608 + ukuvikelwa komlilo wendawo (njengokumbozwa okungashi)
4.3 Isexwayiso ngokungezwani okuvamile kokukhetha
- Ngikholelwa ngephutha ukuthi i-API 608 ifaka izidingo zokuvikela umlilo
- Ukulinganisa ukuhlolwa kwe-API 607 nokuhlolwa kokuvala okuvamile
- Ukunganaki ukuhlolwa kwefektri kwezitifiketi (izidingo zesistimu ye-API Q1)
Isahluko 5: Imibuzo Evame Ukubuzwa (Imibuzo Evame Ukubuzwa)
Umbuzo 1: Ingabe ivalvu ye-API 608 ihlangabezana ngokuzenzakalelayo nezidingo ze-API 607?
A: Akulona iqiniso ngokuphelele. Nakuba ama-valve ebhola e-API 608 angasebenza ekuqinisekisweni kwe-API 607 , adinga ukuhlolwa ngokwehlukana.
Umbuzo 2: Ingabe ivalvu ingaqhubeka nokusetshenziswa ngemva kokuhlolwa komlilo?
A: Akukhuthazwa. Ama-valve ngemva kokuhlolwa avame ukuba nomonakalo wesakhiwo futhi kufanele alahlwe.
UMBUZO 3: Lezi zindinganiso ezimbili zithinta kanjani intengo yamavalvu?
A: Isitifiketi se-API 607 sikhuphula izindleko ngo-30-50%, kanti ukuhambisana ne-API 608 kuthinta cishe u-15-20%.
Isiphetho:
• I-API 607 ibalulekile ekuhlolweni komlilo kwama-valve e-butterfly anezihlalo ezithambile nama-valve ebhola.
• I-API 608 iqinisekisa ubuqotho besakhiwo nokusebenza kwamavalvu ebhola lesihlalo sensimbi kanye nesihlalo esithambile asetshenziswa ezisetshenziswa ezimbonini.
• Uma ukuphepha komlilo kuyinto ebaluleke kakhulu, kudingeka ama-valve ahambisana nezindinganiso ze-API 607.
• Ngenhloso evamile kanye nokusetshenziswa kwamavalvu ebhola anomfutho ophezulu, i-API 608 iyindinganiso efanele.