Kodi Valavu Yoyandama ya Mpira ndi Chiyani: Buku Lophunzitsira la Mafakitale

Kodi Valavu Yoyandama ya Mpira ndi Chiyani?

A valavu ya mpira yoyandamandi imodzi mwa mitundu yamavavu a mpira, ndipo yofanana ndi iyivalavu ya mpira yokwera pa trunnion. Ili ndi mpira wosachirikizidwa womwe umagwira pakati pa mipando iwiri yokha yotsekera. Tsinde limalumikizana mosavuta ndi mpirawo, zomwe zimapangitsa kuti "uyandame." Pakapanikizika pang'ono, mpirawo umasunthira ku mpando womwe uli pansi pa mtsinje, ndikupanga chisindikizo cholimba kumbali yotulukira.

Zigawo Zofunika

• Thupi la Valuvu ya Mpira/Boneti: Mbali zazikulu za valavu zomwe zimakhala ndi mphamvu

• Valuvu ya Mpira: Malo oyenda momasuka okhala ndi chibowo

• Tsinde la Valavu: Amatumiza mphamvu ku mpira

• Mipando: Malo otsekera awiri

• Zisindikizo: PTFE kapena zophatikizika zolimbikitsidwa

Mafotokozedwe Aukadaulo

Mapangidwe a Kapangidwe ka Valavu Yoyandama ya Mpira

1. Kapangidwe ka Mpando Wotseka Kawiri

Makina opangira mipando okhala ndi mipata yochepa amachepetsa mphamvu yogwirira ntchito pomwe akuwonetsetsa kuti palibe kutuluka kwa madzi kudzera mu kutseka mbali zonse ziwiri.

2. Tsinde Losagonjetseka

Tsinde lodulidwa mopapatiza limaletsa kusalingana kwa chogwirira. Chogwirira chofanana = Chotseguka; Chogwirira cholunjika = Chotsekedwa.

3. Mabowo Otsekera Chitetezo

Mabowo awiri otsekeka pamalo otseguka/otsekedwa amaletsa kuchitika mwangozi—kofunikira kwambiri pamapaipi oopsa.

4. Tsinde Losaphulika

Mapewa olumikizidwa bwino amaletsa kutuluka kwa tsinde panthawi ya kupanikizika kwambiri, zomwe zimapangitsa kuti chisindikizo chikhale cholimba.

5. Dongosolo Loletsa Kusasinthasintha

Masiponji oyambira pansi amatulutsa magetsi osasinthasintha omwe amapangidwa ndi kukangana—ofunikira kwambiri pa zinthu zoyaka moto monga LNG kapena propane.

6. Kapangidwe Kotetezeka pa Moto

Zisindikizo zosungira zitsulo ndi zitsulo zimakumana ndi moto:

• Kukhudza mpira/thupi kumasintha mipando yoyaka

• Zisindikizo za moto za grafiti zimakula kuti zisatuluke madzi

•API 607/6FA yogwirizana ndi malamulo

7. Cholumikizira Thupi Chosataya Madzi

Kapangidwe ka flange yolumikizana kamathetsa kudalira gasket, kuteteza kutuluka kwa madzi akunja pansi pa mikhalidwe yovuta kwambiri.

Mapulogalamu a Mafakitale

• Utumiki Wamba: Madzi, zosungunulira, ma asidi

• Zinthu Zofunika Kwambiri: Mpweya, H₂O₂, methane

• Malo Ovuta:

Zomera zamafuta

Mapaipi a gasi wachilengedwe (osagonjetsedwa ndi H₂S)

Machitidwe a Cryogenic

Kuyendetsa slurry yodzaza ndi dzimbiri

Ma Valves a Mpira Oyandama Ubwino vs. Zofooka

Ubwino:

✓ Kapangidwe kakang'ono kosamalira bwino

✓ Kutseka kolimba ngati thovu

✓ Kukana kuyenda bwino kwa madzi

✓ Kugwira ntchito mwachangu kwa 90°

Zoyipa:

✘ Kukangana kwa mipando kumachepetsa kugwiritsa ntchito mphamvu zambiri

✘ Sizoyenera kusungunuka (chiopsezo cha kutsekeka kwa mphuno)

✘ Imafuna kuyika mwaluso

Ma Protocol Okhazikitsa ndi Kukonza

Zofunikira pa Kukhazikitsa

• Ikani mopingasa pamalo otsetsereka

• Pewani kugwedezeka kwa madzi pafupi ndi mpira

• Onetsetsani kuti palibe choletsa kulowa

Mndandanda Woyang'anira Kukonza

• Kotala lililonse: Yang'anani mphete za mpira/zokokera kuti muwone ngati zawonongeka

• Chaka chilichonse:

Pakani mafuta pa stem bearing

Tsimikizani kuchuluka kwa mphamvu

Zisindikizo zadzidzidzi zoyesera

• Pambuyo potseka: Yeretsani dzenje kuti mupewe kuyika kwa makristalo

Kuyandama vs.Ma Vavu a Mpira Omwe Anakwera TrunnionKuyerekeza kwaukadaulo

Malangizo Osankha

Sankhani ma valve oyandama kuti mupeze mayankho otsika mtengo komanso ang'onoang'ono pansi pa Gulu 600. Sankhani ma valve omangiriridwa ndi trunnion mukamagwira ntchito:

• Kupanikizika > Kalasi 900

• Kuchita masewera olimbitsa thupi pafupipafupi

• Zinthu zowononga kapena zowononga