
Ma valve a cryogenic ball okhala ndi maboni otambalala oyenera kugwira ntchito kutentha kotsika mpaka -196°C apangidwa mwapadera kuti agwire ntchito zovuta kwambiri za cryogenic. Ma valve amenewa amagwiritsidwa ntchito kwambiri m'mafakitale monga kukonza LNG (gasi wachilengedwe wosungunuka), kupanga gasi m'mafakitale, ndi ntchito zina zogwiritsira ntchito madzi a cryogenic. Zinthu zofunika kwambiri za ma valve a cryogenic okhala ndi maboni otambalala a -196°C ndi monga: Zipangizo Zotentha Kwambiri: Ma valve nthawi zambiri amapangidwa kuchokera ku zipangizo zapadera monga chitsulo chosapanga dzimbiri, chitsulo cha kaboni, kapena zinthu zina zotentha pang'ono kuti zitsimikizire kuti zikugwira ntchito bwino komanso kuti ndi zangwiro m'malo oundana. Kapangidwe ka Bonnet Yowonjezera: Bonnet yowonjezereka imapereka chitetezo chowonjezera komanso chitetezo cha tsinde la valavu ndi kulongedza kuti zigwire ntchito bwino pamalo otentha kwambiri. Kutseka ndi Kulongedza: Zigawo zotsekera ndi kulongedza kwa valavu zimapangidwa mwapadera kuti zikhale zogwira mtima komanso zosinthasintha kutentha kwa cryogenic, zomwe zimathandiza kutseka mwamphamvu ndikuletsa kutuluka kwa madzi. Kuyesa ndi Kutsatira Malamulo: Ma valve awa amayesedwa mwamphamvu kuti atsimikizire kuti akugwira ntchito bwino komanso kutsatira miyezo yamakampani pa ntchito ya cryogenic. Chitetezo Chogwira Ntchito: Ma valve a cryogenic okhala ndi maboni otambalala ndi ofunikira kuti asunge kuwongolera kotetezeka komanso kodalirika kwa madzi a cryogenic, zomwe zimathandiza kuti ntchito ikhale yotetezeka m'machitidwe a cryogenic. Mukasankha ma valve a cryogenic a ntchito za -196°C, ndikofunikira kuganizira zinthu monga kugwirizana kwa zinthu, kupanikizika ndi kutentha, komanso kutsatira miyezo ndi malamulo oyenera amakampani.
Valavu ya mpira wa API 6D trunnion ndi chinthu chopangidwa ndi valavu ya mpira chomwe chimakwaniritsa zofunikira za American Petroleum Institute standard API 6D. Muyezo uwu umafotokoza kapangidwe, zipangizo, kupanga, kuyang'anira, kukhazikitsa ndi kukonza zofunikira za mavavu a mpira wa API 6D trunnion kuti zitsimikizire mtundu ndi kudalirika kwa mavavu a mpira, ndipo ndi oyenera m'mafakitale osiyanasiyana monga mafuta ndi gasi. Makhalidwe a valavu ya mpira wa API 6D trunnion ndi awa:
1. Mpira wonse wa bore umagwiritsidwa ntchito kuchepetsa kutsika kwa kuthamanga kwa valavu ndikuwonjezera mphamvu yoyenda.
2. Valavu imagwiritsa ntchito njira ziwiri zotsekera komanso magwiridwe antchito abwino otsekera.
3. Valavu ndi yosavuta kugwiritsa ntchito komanso yosalala, ndipo chogwiriracho chimalembedwa kuti wogwiritsa ntchitoyo azindikire mosavuta.
4. Mpando wa valavu ndi mphete yotsekera zimapangidwa ndi zinthu zotentha kwambiri, zopanikizika kwambiri komanso zosagwira dzimbiri, zomwe ndizoyenera kugwiritsa ntchito zinthu zosiyanasiyana zamadzimadzi.
5. Zigawo za valavu ya mpira zimatha kulekanitsidwa bwino, zosavuta kuyika ndi kusamalira. Mavalavu a mpira a API 6D trunnion ndi oyenera nthawi zamafakitale zomwe zimafunika kuwongolera kuyenda kwa madzi, kudula madzi, ndikusunga kukhazikika kwa kuthamanga, monga makina opopera madzi mu mafuta, mankhwala, gasi wachilengedwe, kukonza madzi ndi zina.
| Chogulitsa | Valavu ya Mpira wa Cryogenic Yowonjezera Bonnet ya -196℃ |
| M'mimba mwake mwa dzina | NPS 2”, 3”, 4”, 6”, 8”, 10”, 12”, 14”, 16”, 18”, 20”, 24”, 28”, 32”, 36”, 40”, 48” |
| M'mimba mwake mwa dzina | Kalasi 150, 300, 600, 900, 1500, 2500. |
| Kulumikiza Komaliza | Flanged (RF, RTJ), BW, PE |
| Ntchito | Gudumu Logwirira, Chogwirira cha Pneumatic, Chogwirira cha Magetsi, Tsinde Lopanda Chilema |
| Zipangizo | Yopangidwa: A105, A182 F304, F3304L, F316, F316L, A182 F51, F53, A350 LF2, LF3, LF5 |
| Kuponya: A216 WCB, A351 CF3, CF8, CF3M, CF8M, A352 LCB, LCC, LC2, A995 4A. 5A, Inconel, Hastelloy, Monel | |
| Kapangidwe | Kutupa Konse Kapena Kochepa, |
| RF, RTJ, BW kapena PE, | |
| Khomo lolowera m'mbali, khomo lapamwamba, kapena kapangidwe ka thupi lolumikizidwa | |
| Kutseka Kawiri & Kutuluka Magazi (DBB), Kudzipatula Kawiri & Kutuluka Magazi (DIB) | |
| Mpando wadzidzidzi ndi jakisoni wa tsinde | |
| Chipangizo Choletsa Kusasinthasintha | |
| Kapangidwe ndi Wopanga | API 6D, API 608, ISO 17292 |
| Maso ndi Maso | API 6D, ASME B16.10 |
| Kulumikiza Komaliza | BW (ASME B16.25) |
| MSS SP-44 | |
| RF, RTJ (ASME B16.5, ASME B16.47) | |
| Kuyesa ndi Kuyang'anira | API 6D, API 598 |
| Zina | NACE MR-0175, NACE MR-0103, ISO 15848 |
| Ikupezekanso pa | PT, UT, RT,MT. |
| Kapangidwe koteteza moto | API 6FA, API 607 |
Ntchito yogulitsa valavu yoyandama pambuyo pogulitsa ndi yofunika kwambiri, chifukwa ntchito yogulitsa pambuyo pogulitsa yokha ndi yomwe ingatsimikizire kuti ikugwira ntchito kwa nthawi yayitali komanso mokhazikika. Izi ndi zomwe zili mu ntchito yogulitsa pambuyo pogulitsa pambuyo pogulitsa:
1. Kukhazikitsa ndi kuyambitsa: Ogwira ntchito yogulitsa pambuyo pa malonda adzapita kumaloko kukayika ndikukonza valavu yoyandama kuti atsimikizire kuti ikugwira ntchito bwino komanso mokhazikika.
2. Kukonza: Sungani valavu yoyandama nthawi zonse kuti muwonetsetse kuti ikugwira ntchito bwino komanso kuchepetsa kulephera.
3. Kuthetsa Mavuto: Ngati valavu yoyandama yalephera, ogwira ntchito yogulitsa pambuyo pogulitsa adzachita kukonza mavuto pamalopo nthawi yochepa kwambiri kuti atsimikizire kuti ikugwira ntchito bwino.
4. Kusintha ndi kukweza zinthu: Poyankha zida zatsopano ndi ukadaulo watsopano womwe ukutuluka pamsika, ogwira ntchito yogulitsa pambuyo pa malonda adzapereka malangizo mwachangu kwa makasitomala kuti asinthe ndikusintha zinthu kuti awapatse zinthu zabwino kwambiri.
5. Maphunziro a chidziwitso: Ogwira ntchito yogulitsa pambuyo pogulitsa adzapereka maphunziro a chidziwitso cha ma valavu kwa ogwiritsa ntchito kuti akonze kayendetsedwe ka kayendetsedwe ka ntchito ndi kukonza kwa ogwiritsa ntchito pogwiritsa ntchito ma valavu a mpira woyandama. Mwachidule, ntchito yogulitsa pambuyo pogulitsa ya valavu ya mpira woyandama iyenera kutsimikizika mbali zonse. Mwanjira imeneyi yokha ndi yomwe ingapatse ogwiritsa ntchito chidziwitso chabwino komanso chitetezo chogula.