Mukagwira ntchito ndi ma valve a zipata zamafakitale, miyezo iwiri imabwerezedwa mobwerezabwereza:API 600ndiASME B16.34Sizimasinthasintha, ndipo kusankha cholakwika kungayambitse ndalama zambiri kapena kulephera kwa dongosolo.
Bukuli likufotokoza kusiyana kwa kapangidwe kake, momwe zinthu zimagwirira ntchito, komanso zabwino ndi zoyipa za muyezo uliwonse. Pamapeto pake, mudzadziwa nthawi yeniyeni yoti musankheValavu ya chipata cha API 600ndipo pameneValavu ya chipata cha ASME B16.34ndiye chisankho chanzeru kwambiri.
Kodi Valve ya Chipata cha API 600 ndi Chiyani?
API 600 ndi muyezo wazinthu zomwe zafalitsidwa ndi American Petroleum Institute. Mutu wake wonse ndi *Ma Vavulo a Chipata cha Chitsulo - Mapeto Ozungulira ndi Ozungulira, Ma Boneti Okhala ndi Mabotolo*. Yoyamba kutulutsidwa mu 1949, idapangidwa makamaka kuti igwiritsidwe ntchito kwambiri m'mafakitale oyeretsera mafuta ndi gasi wachilengedwe.
Muyezowu umakhudza magulu opanikizika kuyambira pa Gulu 150 mpaka Gulu 2500 ndi kukula kuyambira pa NPS 2 mpaka NPS 48. Umalongosola zofunikira zaukadaulo zoposa 20, kuphatikizapo zipangizo, makulidwe a khoma, kukula kwa tsinde, magwiridwe antchito otsekera, kulimba kwa kutentha kochepa, ndi chitetezo cha moto. Kope laposachedwa (API STD 600:2021) likulimbitsa kufunikira kwa kapangidwe kake kodzaza ndi mabowo, makulidwe a khoma lolemera, ndi ma tsinde akuluakulu.
Kodi Valavu ya Chipata cha ASME B16.34 N'chiyani?
ASME B16.34 ndi muyezo woyambira wa ma valavu womwe unapangidwa ndi American Society of Mechanical Engineers. Umagwiritsidwa ntchito pa ma valavu opindika, opindika, komanso opindika amitundu yonse yodziwika bwino - ma valavu a chipata, globe, cheke, mpira, ndi gulugufe.
Mosiyana ndi API 600, yomwe imaphimba ma valve a chipata okha, ASME B16.34 imapereka mayeso a kutentha kwa kuthamanga kwa mpweya, magulu a zinthu (49 onse), ma formula a makulidwe a khoma, malamulo olembera, ndi zofunikira pakuyesa. Imayambira pa Class 150 mpaka Class 4500, ndipo imagwira ntchito pa kutentha kuyambira -29°C mpaka kupitirira 500°C, kutengera ndi zinthuzo.
Kusiyana kwa Kapangidwe Pakati pa Ma Valves a Chipata cha API 600 ndi ASME B16.34
Miyezo iwiriyi imawoneka yofanana poyamba, koma mapangidwe awo amkati amasiyana kwambiri.
Kukhuthala kwa Khoma
ASME B16.34 imafotokoza zaosacheperamakulidwe a khoma ndi ofunikira kuti mphamvu ya mpweya ikhale yotetezeka. Izi zimapangitsa kuti ma valve akhale opepuka komanso osawononga ndalama zambiri.
Zofunikira za API 600makulidwe owonjezera a khoma- nthawi zambiri pafupifupi 20% - zomwe zimagwira ntchito ngati njira yopezera dzimbiri. Chitsulo chowonjezeracho chimawonjezera nthawi yogwira ntchito m'malo omwe amakokoloka.
Kapangidwe ka Tsinde
API 600 imafunatsinde lolimba, lolimbayokhala ndi mainchesi akulu kuposa miyezo yonse. Izi zimaletsa kupindika pansi pa kupanikizika kwakukulu kapena pamene wedge ikamamatira chifukwa cha kutentha kapena zinyalala.
ASME B16.34 siikakamiza tsinde lolimba; opanga amatha kusankha mapangidwe osinthasintha ngati ntchitoyo ilola.
Kulumikizana kwa Bonnet
Ma valve a chipata cha API 600 nthawi zambiri amagwiritsa ntchito boniti yolumikizidwa kapena boniti yotsekera. Mtundu wa chitseko chotsekera umakhala wolimba kwambiri pamene kupanikizika kwamkati kukukwera - ndibwino kutentha kwambiri komanso kupanikizika kwambiri.
ASME B16.34 imasiya mtundu wa bonnet wotseguka, zomwe zimapatsa opanga ufulu wochulukirapo.
Mtundu Wosindikiza
API 600 imafunachisindikizo chachitsulo kuchokera kuchitsuloyokhala ndi nkhope yolimba (monga Stellite) pampando ndi pa wedge. Izi zimathandiza kutentha kwambiri komanso zinthu zodzaza ndi tinthu tating'onoting'ono.
ASME B16.34 imalola zomatira zofewa kapena zomatira zachitsulo, kutengera kapangidwe ka wopanga.
Mtundu wa Wedge ndi Kukula kwa Bore
Ma valve a chipata cha API 600 nthawi zambiri amakhalawodzaza ndi zinthu zonse(malo otseguka) kuti achepetse kukana kwa madzi ndi kupewa kusonkhanitsa zinyalala. Chingwechi nthawi zambiri chimakhala cholimba kapena chosinthasintha.
ASME B16.34 imalola mapangidwe a mabowo ochepetsedwa malinga ngati malo ocheperako oyendamo akukwaniritsa zofunikira zachitetezo.
Kulemera konse
Chifukwa cha khoma lolemera, tsinde lalikulu, ndi chipewa cholimba,Valavu ya chipata cha API 600kulemera kwake ndi pafupifupi 20% kuposaValavu ya chipata cha ASME B16.34za kukula kofanana ndi kalasi yofanana ya kupanikizika. Kusiyana kwa kulemera kumeneko ndi chifukwa cha malingaliro osiyanasiyana a kapangidwe.
Mikhalidwe Yogwirira Ntchito - Kumene Muyezo Uliwonse Umachita Bwino
Utumiki Wamba wa Ma Valves a Chipata cha API 600
Mupeza ma valve a API 600 gate mu ntchito zovuta kwambiri zamafakitale:
- Malo oyeretsera mafuta- ma catalytic cracking, hydrocracking, ndi coker units komwe media imakhala ndi sulfure, ma hydrocarbon otentha kwambiri, kapena ma catalyst fines.
- Makina a nthunzi yothamanga kwambiri– pamwamba pa 5 MPa (pafupifupi 725 psi), monga mawaya akuluakulu a nthunzi m'malo opangira magetsi.
- Kuyenda kwa zinthu zolimba kutentha kwambiri- madzi omwe amanyamula tinthu ta coke kapena fumbi la catalyst.
- Malo omwe moto umakhala woopsa- mpando wachitsulo umapereka chitetezo cha moto chokhazikika popanda satifiketi yowonjezera.
Utumiki Wamba wa Ma Valves a Chipata cha ASME B16.34
Ma valve a zipata za ASME B16.34 amaphimba mitundu yambiri yamakampani:
- Kuchiza madzi ndi HVAC- mpweya wochepa, woyeretsa mpaka madigiri 600 ndi 425 Celsius.
- Mizere ya mankhwala- pali zinthu zambiri zomwe zikupezeka, koma popanda chitetezo chowonjezera cha API 600.
- Makina othandizira amagetsi- madzi ozizira, mafuta odzola, ndi nthunzi yotsika mphamvu.
- Kutumiza mafuta ndi gasi wamba- komwe kulibe kuwonongeka kwakukulu kwa nthaka kapena ngozi ya moto.
Ubwino ndi Kuipa
Valavu ya Chipata cha API 600 - Ubwino
| Ubwino | Chifukwa Chake Ndi Chofunika |
|---|---|
| Kudalirika kwambiri pa ntchito yovuta | Yopangidwira kalasi 150 mpaka kalasi 2500 yokhala ndi zofunikira zoposa 20 |
| Kusindikiza bwino kwambiri | Zigwiriro za mipando yachitsulo zokhala ndi tinthu tating'onoting'ono ndi kutentha kwambiri; pali kulongedza kwa mpweya wochepa |
| Chitetezo cha moto chokhazikika | Palibe mayeso owonjezera ofunikira pa ntchito yoyaka moto |
| Mphamvu yayikulu yomanga | Makoma okhuthala, tsinde lalikulu, ndi bonnet yolimba zimapewa nkhanza |
| Moyo wautali wautumiki | Kukhuthala kwa khoma ndi khoma lolimba zimapirira dzimbiri ndi kukokoloka kwa nthaka |
Valavu ya Chipata cha API 600 - Zoyipa
| Kulephera | Chifukwa Chake Ndi Chofunika |
|---|---|
| Cholemera ndi chachikulu | ~20% yolemera kuposa valavu yofanana ya ASME B16.34, yomwe imafuna zothandizira mapaipi olimba komanso malo ambiri. |
| Mtengo wokwera | Zipangizo zambiri, kupanga zovuta kwambiri, ndi mayeso okhwima |
| Kugwira ntchito pang'onopang'ono | Ma valve a chipata amatenga nthawi zambiri kuti atsegule kapena kutseka kwathunthu |
| Kuopsa kwa kuvala mipando | Chingwecho chimagwera pa mipando panthawi ya sitiroko, zomwe zingayambitse kulira m'mautumiki ena |
| Osati kukakamiza | Kutseguka pang'ono kumawononga mpando ndikudula mwachangu |
| Pakufunika mphamvu yayikulu | Kusiyana kwakukulu kwa kuthamanga kwa magazi kumafuna ma actuator amphamvu |
Valavu ya Chipata cha ASME B16.34 - Ubwino
| Ubwino | Chifukwa Chake Ndi Chofunika |
|---|---|
| Kugwiritsa ntchito kwakukulu | Chikuto chipata, dziko lapansi, cheke, mpira, gulugufe - gulu lililonse la zinthu |
| Yokhazikika kwambiri | Matebulo a kutentha kwa mpweya amachititsa kusankha kukhala kosavuta komanso kumatsimikizira kuti zinthu zimasinthana |
| Kusinthasintha kwa kapangidwe | Palibe chisindikizo chachitsulo chokakamizidwa kapena tsinde lolimba - wopanga akhoza kukonza bwino |
| Mtengo wotsika | Kuchuluka kochepa kwa khoma kumasunga zinthu ndi makina |
| Kugwiritsa ntchito mafakitale osiyanasiyana | Amagwira ntchito mu mafuta ndi gasi, magetsi, mankhwala, madzi, ndi mafakitale wamba |
Valavu ya Chipata cha ASME B16.34 - Zoyipa
| Kulephera | Chifukwa Chake Ndi Chofunika |
|---|---|
| Mtengo wochepa wa utumiki wovuta | Khoma lochepa silipereka dzimbiri kapena kukokoloka kwa nthaka yowonjezera |
| Palibe zosintha zokhudzana ndi makampani | Sili ndi mayeso enieni a fakitale yoyeretsera (monga chitetezo cha moto, mpweya wochepa) |
| Sizotetezeka pamoto mwachisawawa | Muyenera kuyitanitsa mwachindunji kapangidwe koteteza moto ngati pakufunika kutero |
Tebulo Loyerekeza Mwachangu - API 600 vs ASME B16.34
| Mbali | Valavu ya Chipata cha API 600 | Valavu ya Chipata cha ASME B16.34 |
|---|---|---|
| Mtundu wamba | Zamakampani (mafuta ndi gasi) | Muyezo woyambira wamba |
| Mitundu ya ma valavu yophimbidwa | Ma valve a chipata cholumikizidwa ndi flange/butt okha | Mitundu yonse ya ma valavu wamba |
| Kuthamanga kwapakati | Kalasi 150 - 2500 | Kalasi 150 - 4500 |
| Kukula kwa mitundu | NPS 2 - 48 | Zimatengera mtundu wa valavu |
| Kukhuthala kwa khoma | Zolemera (ndi zololeza dzimbiri) | Zochepa (zochokera ku kupanikizika) |
| Mtundu wa chisindikizo | Chitsulo chovomerezeka - kukhala - chitsulo | Zofewa kapena zitsulo (ngati mukufuna) |
| Kapangidwe ka tsinde | Yolimba, yokulirapo | Zingakhale zosalimba |
| Bore | Bore yonse yokha | Kuchepetsa bore kumaloledwa |
| Chitetezo pamoto | Cholengedwa (mpando wachitsulo) | Sikofunikira |
| Ntchito zachizolowezi | Malo oyeretsera zinthu, nthunzi yothamanga kwambiri, zinthu zolimba zotentha kwambiri | Madzi, HVAC, mankhwala wamba, nthunzi yotsika mphamvu |
Momwe Mungasankhire Pakati pa API 600 ndi ASME B16.34 Gate Valves
Chofunika ndi kumvetsetsa zimenezoAPI 600 imamangidwa pamwamba pa ASME B16.34Valavu ya chipata cha API 600 iyeneranso kukwaniritsa kuchuluka kwa kutentha kwa ASME B16.34. Mwa kuyankhula kwina, API 600 ndiye **mtundu wolimbikitsidwa**kwa ntchito yovuta.
Sankhani API 600 pamene:
- Chophimbacho chili ndi sulfure, haidrojeni, ma catalyst fines, kapena tinthu ta coke.
- Kuthamanga kwa nthunzi kumapitirira 5 MPa (≈725 psi).
- Valavu ili pamalo oopsa a moto ndipo mukufuna chitetezo cha moto.
- Paipiyi imakhala ndi kutentha kapena kugwedezeka pafupipafupi - tsinde lolimba ndi khoma lolemera zimalimbana ndi kutopa.
Sankhani ASME B16.34 pamene:
- Chophimbacho ndi madzi oyera, mpweya, mpweya wopanda mpweya, kapena mafuta opepuka.
- Kalasi ya kupanikizika ndi Kalasi 150 kapena Kalasi 300 yomwe siiwononga chilengedwe.
- Dongosololi ndi la HVAC, madzi ogwiritsidwa ntchito, kapena madzi a moto.
- Mukufuna valavu yopanda chipata (globe, cheke, mpira) - ndiye kuti ASME B16.34 ndiye muyezo wanu woyambira.
Nkhani yapadera - makampani opanga magetsi:Ma valve amphamvu opanikizika kwambiri nthawi zambiri amafuna API 600 ndi ASME B16.34, komanso miyezo yowonjezera monga ASME B16.34 Class 4500 kapena MSS SP‑144 kuti agwiritse ntchito mphamvu yothamanga kwambiri komanso kutentha kwambiri.
Maganizo Omaliza
API 600ndiASME B16.34si opikisana nawo – amagwira ntchito zosiyanasiyana. ASME B16.34 imaperekapansikuti apange ma valve otetezeka m'mafakitale onse. API 600 imawonjezeradenga lolemeraza mafuta, gasi, ndi petrochemical.
Ngati mwasankha valavu yokhazikika ya hydrotreater ya fakitale yoyeretsera kapena chingwe chachikulu cha nthunzi, gwiritsani ntchito API 600. Kulemera kowonjezera ndi mtengo wake zimapindulitsa pa kudalirika ndi chitetezo.
Ngati mukufuna valavu yolumikizira chipata yogwiritsira ntchito poyatsira madzi ozizira kapena nthunzi yotsika mphamvu, ASME B16.34 ndi yokwanira bwino komanso yotsika mtengo kwambiri.
Kumvetsetsa ubale umenewu kumakuthandizani kupewa kutchula mopitirira muyeso (kuwononga ndalama) kapena kutchula moperewera (kuika pachiwopsezo cholephera).
—
Maumboni (kuti owerenga atsimikizire - magwero oyambirira aperekedwa)
- API Std 600:2021 – Ma Vavulo a Chipata cha Chitsulo
- ASME B16.34-2020 – Ma Vavu – Mapeto Opindika, Opindika, ndi Owetera
- Njira zabwino kwambiri zamakampani kuchokera kwa opanga ma valve akuluakulu ndi malangizo aukadaulo
Nthawi yotumizira: Epulo-27-2026