Valavu ya Mpira Wozungulira Kawiri Ndi Wotuluka Magazi
Kodi valavu ya Double block ndi bleed ball ndi chiyani?
Valavu ya Mpira Wozungulira Kawiri Ndi Wotuluka Magazindi valavu yapadera yopangidwa ndi mpira.
Ponena za dongosolo la Double block ndi bleed valve, pali matanthauzo awiri a API6D ndi OSHA.
API 6D imafotokozaValavu Yotseka Kawiri ndi Yotuluka MagaziDongosololi ndi "valavu imodzi yokhala ndi malo awiri okhala omwe, akatsekedwa, amapereka chisindikizo motsutsana ndi kupsinjika kuchokera kumapeto onse awiri a valavu ndi njira yotulutsira/kutulutsa magazi m'bowo pakati pa malo okhala."
OSHA imatanthauzaValavu Yotseka Kawiri ndi Yotuluka MagaziDongosololi 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".
aNORTECH block iwiri ndi valavu ya mpira wotuluka magazizopangidwaMwa 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.
Zinthu zazikulu za Double block ndi bleed ball valve
Valavu ya Mpira Wozungulira Kawiri Ndi Wotuluka Magazindi 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.
Chigawo ChimodziValavu Yotseka Kawiri ndi Yotuluka MagaziKachitidwe 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.
- Ma valve ali ndi chitoliro chodzaza ndi malo otseguka oyenda osasinthasintha ndipo ali ndi kutsika pang'ono kwa kuthamanga kwa mpweya pa chipangizocho.
- Mapaipi omwe ma valve awa amayikidwa nawonso amatha kusinthidwa popanda vuto lililonse.
- 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.
Kufotokozera zaukadaulo kwa Double block ndi bloed ball valve
Chiwonetsero cha Zamalonda:
Kugwiritsa ntchito ma valve awiri a block ndi bleed ball
Ma valve awiri a block ndi bloodballAmagwiritsidwa 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.
- Utumiki wamadzi pafupi ndi mitsinje kapena mizinda.
- Kutumiza ndi kusunga.
- Kubayidwa ndi mankhwala ndi kutengedwa ngati zitsanzo.
- Patulani zida monga zizindikiro za kuthamanga ndi ma lever gauges.
- Nthunzi yoyambira.
- Tsekani ndi kutulutsa zida zoyezera kuthamanga kwa mpweya.
