Malangizo Osankha ndi Kugwiritsa Ntchito Ma Valves Othandizira Kupanikizika

1. Mvetsetsani Cholinga ndi Mikhalidwe Yogwiritsira Ntchito

Musanasankhevalavu yothandizira kupanikizika, fotokozani momveka bwino chifukwa chake ndi komwe idzagwiritsidwe ntchito. Machitidwe osiyanasiyana amaika zofuna zosiyanasiyana pa PRV. Zinthu zazikulu zikuphatikizapo:

• ①Mtundu wa madzi (madzimadzi, mpweya, nthunzi, kapena zinthu zowononga)

• ②Kuthamanga kwabwinobwino komanso kutentha kwa ntchito

• ③Kuthamanga kovomerezeka kogwira ntchito (MAWP)

• ④Kusinthasintha kwa kuthamanga kwa magazi

Mwachitsanzo, valavu yopangidwira ntchito ya nthunzi siingagwire ntchito bwino m'makina amadzimadzi. Kugwirizanitsa mtundu wa valavu ndi momwe imagwirira ntchito ndiye maziko a kusankha kotetezeka.

2. Sankhani Kupanikizika Koyenera

Kupanikizika komwe kwayikidwa kumatsimikiza nthawi yomwe valavu idzatsegulidwe kuti ichepetse kupsinjika kochulukirapo. Nthawi zonse iyenera kukhala:Pansi pa mphamvu yovomerezeka ya dongosolo.Kuthamanga kopitirira muyeso wamba kuti tipewe kunyamula zinthu zosokoneza.

Kawirikawiri, kuthamanga kwa seti nthawi zambiri kumakhala kokwera ndi 10–15% kuposa kuthamanga kwabwinobwino kwa ntchito, kutengera miyezo ndi malamulo a dongosolo. Kuthamanga kolakwika kwa seti ndi chimodzi mwa zifukwa zomwe zimayambitsa vuto la PRV.

3. Sankhani Mtundu Woyenera wa Valavu

• Ma valve opumulira odzaza ndi masika: Yogwiritsidwa ntchito kwambiri, kapangidwe kosavuta, koyenera kugwiritsidwa ntchito m'mafakitale ambiri

• Ma valve othandizira oyendetsedwa ndi oyendetsa ndege: Yabwino kwambiri pamakina amphamvu kwambiri omwe amagwira ntchito bwino komanso osatulutsa madzi ambiri

• Ma valve opumulira kutentha: Yopangidwa kuti iteteze ku kukwera kwa mphamvu chifukwa cha kutentha kwa madzi

Kumvetsetsa ubwino ndi zofooka za mtundu uliwonse kumatsimikizira kuti ntchito yake ndi yabwino komanso kuti ntchito yake ikhale yayitali.

4. Samalani Zipangizo ndi Miyezo

• ①Mkuwa wa machitidwe amadzi ambiri

• ②Sungani chitsulo kapena chitsulo chosapanga dzimbiri kuti mugwiritse ntchito zinthu zowononga kapena zopanikiza kwambiri

• ③Ma aloyi amkuwa ogwiritsidwa ntchito m'madzi

Kuphatikiza apo, onetsetsani kuti valavuyo ikutsatira miyezo yapadziko lonse lapansi monga ASME, API, ISO, kapena zilolezo za gulu lamadzi ngati kuli koyenera.

5. Kukhazikitsa Koyenera Ndikofunikira

• ①Ikani valavu pamalo oyenera

• ② Onetsetsani kuti mapaipi olowera ndi afupiafupi, owongoka, komanso opanda zoletsa

• ③Pewani kupanikizika kwambiri kwa msana pa chotulutsira mpweya

• ④Musayike ma valve odzipatula pakati pa PRV ndi zida zotetezedwa pokhapokha ngati zaloledwa ndi malamulo.

Kukhazikitsa koyenera kumatsimikizira kuyankha mwachangu komanso kupumula kolondola kwa kupanikizika pamene kuli kofunikira kwambiri.

6. Gwiritsani ntchito valavu mkati mwa malire ake a kapangidwe kake

Ma valve ochepetsa kupanikizika ndi zida zotetezera, osati ma valve owongolera. Pewani kuwagwiritsa ntchito powongolera kupanikizika pafupipafupi. Kukweza kosalekeza kapena mobwerezabwereza kungayambitse:Kuvala mipando.Kutaya madzi.Kuchepa kulondola kwa kuthamanga komwe kwayikidwa.

Kugwira ntchito kokhazikika kwa makina kumawonjezera moyo wa PRV ndipo kumasunga kudalirika kwake.

7. Kuyang'anira ndi Kuyesa Kawirikawiri

Kuyang'anira ndi kukonza nthawi zonse ndikofunikira. Njira zabwino kwambiri ndi izi:

• ①Kuyang'ana maso nthawi ndi nthawi kuti awone ngati pali dzimbiri, kutayikira, kapena kutsekeka

• ②Kuyesa kogwira ntchito malinga ndi kufunikira kwa dongosolo

• ③Kukonzanso kapena kusintha kutengera malangizo a wopanga

Mu machitidwe ofunikira chitetezo, zolemba zowunikira zolembedwa nthawi zambiri zimafunikira ndi malamulo ndi mabungwe ogawa magulu.

8. Sinthani ma valve okalamba kapena owonongeka mwachangu

Ma valve ochepetsa kupanikizika si zinthu zomwe zimagwiritsidwa ntchito nthawi zonse. Masiponji amatha kufooka, mipando imatha kuwonongeka, ndipo zotsekera zimatha kuuma pakapita nthawi. Ngati valavu ikuwonetsa zizindikiro za kutuluka mobwerezabwereza, kusagwira ntchito bwino, kapena kuwonongeka kwakuthupi, kuisintha nthawi zambiri kumakhala kotetezeka komanso kotsika mtengo kuposa kukonza.