API 6D/API 608 High Pressure Casting/Forging Bw Floating/Trunnion Dbb Manual/Electrical/Pneumatic Cryogenic Eccentric Semi-Ball Valve
Kodi valavu ya mpira wa DBB trunnion ndi chiyani?
Valavu ya mpira wa DBB trunnionndi valavu yapadera yopangidwa ndi mpira.
Ponena za dongosolo la Double block ndi bleed valve, pali matanthauzo awiri a API6D ndi OSHA.
OSHA imatanthauzaValavu ya mpira wa DBB trunnionDongosololi ndi "kutseka chingwe, njira yolumikizira, kapena chitoliro mwa kutseka ndi kutseka kapena kuyika ma valve awiri olowera ndi kutsegula ndi kutseka kapena kuyika ma valve otulutsira madzi kapena otulukira mpweya mu mzere pakati pa ma valve awiri otsekedwa".
aValavu ya mpira wa NORTECH DBB trunnionzopangidwaMwa kuphatikiza ma valve awiri kukhala thupi limodzi, kapangidwe ka ma valve awiri kamachepetsa kulemera ndi njira zomwe zingatulukire pamene akukwaniritsa zofunikira za OSHA za block double ndi bleeding.
API 6D imatanthauzira DBB trunnion ball valve System ngati "valavu imodzi yokhala ndi malo awiri okhala omwe, akatsekedwa, amapereka chisindikizo motsutsana ndi kupsinjika kuchokera kumapeto onse a valavu ndi njira yotulutsira/kutulutsa magazi m'bowo pakati pa malo okhala."
Zinthu zazikulu za DBB trunnion ball valve
Chigawo ChimodziValavu ya mpira wa DBB trunnion Kachitidwe aka kamapereka chipolopolo chawiri ndi kutuluka magazi mu valavu imodzi. Kalembedwe aka kangathe kusiyanitsa mapaipi mbali zonse ziwiri za valavu kuti atulutse/kutulutsa magazi m'malo olumikizirana a valavu pakati pa mipando.
Kugwiritsa ntchito makina otsekera awiri a unit imodzi ndi makina otsekera magazi poyerekeza ndi ma valve atatu osiyana kumasunga nthawi yoyika, kulemera kwa makina opayikira mapaipi, ndi malo. Kapangidwe kameneka kalinso ndi ubwino wogwirira ntchito,
- Pali njira zochepa kwambiri zotulutsira madzi mkati mwa gawo la mapaipi awiri otsekedwa ndi otuluka magazi.
- Zigawo zonse za ma valavu zimayikidwa mu unit imodzi, malo ofunikira poyika amachepa kwambiri motero kumasula malo ogwiritsira ntchito zida zina zofunika.
- Kutaya madzi pang'ono kumafunika.
Valavu ya mpira wa DBB trunnion ndi kuphatikiza kwa ma valavu amodzi kapena angapo a block/isolation, nthawi zambiri ma valavu a ball, ndi ma valavu amodzi kapena angapo a bleed/vent, nthawi zambiri ma valavu a ball kapena singano. Cholinga cha block ndi bleed valve system ndikutseka kapena kuletsa kuyenda kwa madzi mu system kuti madzi ochokera kumtunda asafike kuzinthu zina za system zomwe zili pansi. Izi zimathandiza mainjiniya kutulutsa kapena kutulutsa kapena kutulutsa madzi otsala kuchokera mu system yomwe ili pansi kuti agwire ntchito inayake (kukonza/kukonza/kusintha), kutengera zitsanzo, kusintha kayendedwe ka madzi, jakisoni wa mankhwala, kuyang'ana kukhulupirika kwa madzi ndi zina zotero.
Mafotokozedwe aukadaulo a valavu ya mpira wa DBB trunnion
Chiwonetsero cha Zamalonda: Valavu ya mpira wa DBB trunnion
Kugwiritsa ntchito valavu ya mpira wa DBB trunnion
Ma valve a mpira wa DBB trunnionAmagwiritsidwa ntchito kwambiri mumakampani opanga mafuta ndi gasi, komanso angathandize m'mafakitale ena ambiri. Nthawi zambiri amagwiritsidwa ntchito pamene pakufunika kutulutsa magazi m'malo olumikizirana ma valve, pomwe mapaipi amafunika kusungidwa kuti akonzedwe, kapena pazochitika zina zilizonse izi:
- Pewani kuipitsidwa ndi zinthu.
- Chotsani zipangizo zoyeretsera kapena kukonza pa ntchito.
- Kuwerengera mita.
- Patulani zida monga zizindikiro za kuthamanga ndi ma lever gauges.
- Nthunzi yoyambira.
- Tsekani ndi kutulutsa zida zoyezera kuthamanga kwa mpweya.
