Wopanga ndi mlangizi wosankha ma valve a mapaipi mu kayendetsedwe ka madzi a mafakitale
Ndife akatswiri opanga ma valve omwe ali ndi zaka zambiri zogwira ntchito popanga ndi kutumiza kunja. Timadziwa bwino kapangidwe ndi mfundo za ma valve osiyanasiyana ndipo tingakuthandizeni kusankha mtundu woyenera kwambiri wa ma valve malinga ndi malo osiyanasiyana olumikizirana mapaipi ndi malo. Tidzakuthandizani kugwiritsa ntchito ndalama zochepa pamene mukukwaniritsa zofunikira zonse zogwiritsidwa ntchito ndikuwonetsetsa kuti ntchitoyo ikugwira ntchito nthawi yayitali.
Mikhalidwe yogwirira ntchito ya valavu
Ma valve athu amagwiritsidwa ntchito kwambiri mu mafuta, mankhwala, gasi wachilengedwe, kupanga mapepala, kukonza zimbudzi, mphamvu ya nyukiliya, ndi zina zotero. Cholinga chake ndi kugwira ntchito molimbika kwambiri, monga kutentha kwambiri, kuthamanga kwambiri, asidi wambiri, alkalinity wamphamvu, kukangana kwakukulu, ndi zina zotero. Ma valve athu ndi osinthasintha kwambiri. Ngati mukufuna njira yowongolera kayendedwe ka madzi, kuwongolera kutentha, kuwongolera pH, ndi zina zotero, mainjiniya athu adzakupatsaninso upangiri waukadaulo komanso kusankha.
Ma valve a NSW
NSW ikutsatira kwambiri dongosolo lowongolera khalidwe la ISO9001. Timayamba ndi malo oyambira a thupi la valavu, chivundikiro cha valavu, ziwalo zamkati ndi zomangira, kenako timakonza, kusonkhanitsa, kuyesa, kupaka utoto, kenako ndikuyika ndikutumiza. Timayesa mosamala valavu iliyonse kuti tiwonetsetse kuti valavuyo siitulutsa madzi ndipo ndi yotetezeka kugwiritsa ntchito, yapamwamba, yapamwamba komanso yamoyo wautali.
Zogulitsa ma valve zomwe zimagwiritsidwa ntchito kwambiri m'mapaipi amafakitale
Ma valve m'mapaipi a mafakitale ndi zowonjezera za mapaipi zomwe zimagwiritsidwa ntchito kutsegula ndi kutseka mapaipi, kuwongolera njira yoyendera, kusintha ndi kuwongolera magawo (kutentha, kupanikizika ndi kuyenda) kwa cholumikizira chonyamulira. Valavu ndi gawo lolamulira mu dongosolo loyendera madzi m'mapaipi a mafakitale. Lili ndi ntchito zodula, kudula mwadzidzidzi, kutseka, kulamulira, kusokoneza, kuletsa kuyenda kwa madzi m'mbuyo, kukhazikika kwa kuthamanga, kusuntha kapena kuchepetsa kuthamanga kwa madzi ndi ntchito zina zowongolera madzi. Ingagwiritsidwe ntchito kuwongolera kuyenda kwa mitundu yosiyanasiyana yamadzi monga mpweya, madzi, nthunzi, zinthu zosiyanasiyana zowononga, matope, mafuta, zitsulo zamadzimadzi ndi zinthu zotulutsa ma radioactive.
Mitundu ya ma valve a mapaipi a mafakitale a NSW
Mikhalidwe yogwirira ntchito m'mapaipi a mafakitale ndi yovuta, kotero NSW imapanga, imapanga, ndikupanga mitundu yosiyanasiyana ya ma valve kuti agwiritsidwe ntchito m'malo osiyanasiyana kuti akwaniritse ntchito ndi zofunikira zomwe ogwiritsa ntchito amafunikira akamagwiritsa ntchito.
Vavu Yotseka Pangozi ndi valavu yopangidwa mwapadera, yomwe imagwiritsidwa ntchito makamaka m'mapaipi a gasi kapena amadzimadzi, yomwe imatha kudula madzi omwe ali mupaipi mwachangu pakagwa ngozi kuti iwonetsetse kuti ogwira ntchito ndi zida ndi otetezeka. Vavu iyi nthawi zambiri imayikidwa pazida za gasi wosungunuka, zotengera za thanki, matanki osungiramo zinthu kapena mapaipi, ndipo imatha kutsekedwa mwachangu pamanja kapena zokha pakagwa ngozi. Ntchito yayikulu ya Vavu Yotseka Pangozi ndikutseka mwachangu kapena kutsegula pakagwa ngozi kuti tipewe ngozi kapena kuchepetsa kuchuluka kwa ngozi.
Pakati pa valavu ndi mpira wozungulira wokhala ndi dzenje. Mbale imasuntha tsinde la valavu kuti potseguka pa phala pakhale potseguka bwino pamene likuyang'ana mbali yozungulira ya payipi, ndipo limatsekedwa bwino likatembenuzidwa 90°. Vavu ya valavu ili ndi mphamvu zinazake zosinthira ndipo imatha kutseka bwino.
Chimake cha valavu ndi mbale yozungulira ya valavu yomwe imatha kuzungulira molunjika molunjika ku mzere wa payipi. Pamene mtunda wa valavu ukugwirizana ndi mzere wa payipi, umatseguka kwathunthu; pamene mtunda wa valavu ya gulugufe uli molunjika ku mzere wa payipi, umatsekedwa kwathunthu. Kutalika kwa thupi la valavu ya gulugufe ndi kochepa ndipo kukana kuyenda kwake ndi kochepa.
Mawonekedwe a pulagi ya valavu amatha kukhala ozungulira kapena ozungulira. Mu mapulagi a valavu ozungulira, njira nthawi zambiri zimakhala zamakona anayi; mu mapulagi a valavu opindika, njirazo zimakhala za trapezoidal. Pakati pa zinthu zina, valavu ya plug ya DBB ndi chinthu chopikisana kwambiri ndi kampani yathu.
Imagawidwa m'magulu awiri: tsinde lotseguka ndi tsinde lobisika, chipata chimodzi ndi chipata chachiwiri, chipata cha wedge ndi chipata chofanana, ndi zina zotero, ndipo palinso valavu ya chipata yofanana ndi mpeni. Kukula kwa thupi la valavu ya chipata ndi kochepa motsatira njira ya madzi, kukana kwa madzi ndi kochepa, ndipo kutalika kwa valavu ya chipata ndi kwakukulu.
Imagwiritsidwa ntchito poletsa kubwerera kwa njira yolumikizirana, imagwiritsa ntchito mphamvu ya kinetic ya madzimadzi kuti itsegule yokha, ndipo imatseka yokha pamene kuyenda kobwerera kukuchitika. Nthawi zambiri imayikidwa pamalo otulukira madzi pampope wamadzi, pamalo otulukira nthunzi ndi malo ena kumene kuyenda kobwerera kwa madzi sikuloledwa. Ma valve owunikira amagawidwa m'magulu awiri: mtundu wa swing, mtundu wa piston, mtundu wa lift ndi mtundu wa wafer.
Imagwiritsidwa ntchito poletsa kubwerera kwa njira yolumikizirana, imagwiritsa ntchito mphamvu ya kinetic ya madzimadzi kuti itsegule yokha, ndipo imatseka yokha pamene kuyenda kobwerera kukuchitika. Nthawi zambiri imayikidwa pamalo otulukira madzi pampope wamadzi, pamalo otulukira nthunzi ndi malo ena kumene kuyenda kobwerera kwa madzi sikuloledwa. Ma valve owunikira amagawidwa m'magulu awiri: mtundu wa swing, mtundu wa piston, mtundu wa lift ndi mtundu wa wafer.
Sankhani mavavu a NSW
Pali mitundu yambiri ya ma valve a NSW, kodi tingasankhe bwanji valve, Tikhoza kusankha ma valve malinga ndi njira zosiyanasiyana, monga momwe amagwirira ntchito, kuthamanga, kutentha, zinthu, ndi zina zotero. Njira yosankhira ndi iyi:
Sankhani ndi actuator yogwirira ntchito ma valve
Ma Valves a Pneumatic Actuator
Ma valve a pneumatic ndi ma valve omwe amagwiritsa ntchito mpweya wopanikizika kukankhira magulu angapo a ma piston ophatikizana a pneumatic mu actuator. Pali mitundu iwiri ya ma actuator a pneumatic: rack ndi pinion type ndi Scotch Yoke Pneumatic Actuator.
Ma valve amagetsi
Vavu yamagetsi imagwiritsa ntchito choyatsira magetsi kuti ilamulire valavu. Polumikiza ku terminal yakutali ya PLC, valavu imatha kutsegulidwa ndi kutsekedwa patali. Ikhoza kugawidwa m'magawo apamwamba ndi otsika, gawo lapamwamba ndi choyatsira magetsi, ndipo gawo lapansi ndi valavu.
Ma valve amanja
Pogwiritsa ntchito chogwirira cha valavu, gudumu lamanja, turbine, giya la bevel, ndi zina zotero, zigawo zowongolera mu dongosolo lotumizira madzi a paipi zimayendetsedwa.
Ma valve odziyimira okha
Valavu siifuna mphamvu yakunja kuti iyendetse, koma imadalira mphamvu ya cholumikiziracho kuti chiyendetse valavuyo. Monga mavavu oteteza, mavavu ochepetsa kuthamanga kwa magazi, zotchingira nthunzi, mavavu owunikira, mavavu owongolera okha, ndi zina zotero.
Sankhani ndi ntchito ya ma valve
Valavu yodula
Valavu yodulidwa imatchedwanso valavu yotsekedwa. Ntchito yake ndikulumikiza kapena kudula cholumikizira chomwe chili mupaipi. Valavu yodulidwa imaphatikizapo mavavu a chipata, mavavu ozungulira, mavavu olumikizira, mavavu a mpira, mavavu a gulugufe ndi ma diaphragm, ndi zina zotero.
Valavu yowunikira
Valavu yowunikira imatchedwanso valavu yolowera mbali imodzi kapena valavu yowunikira. Ntchito yake ndikuletsa kuti cholumikizira chomwe chili mupaipi chisabwerere m'mbuyo. Valavu yapansi ya valavu yoyamwa madzi ya pampu yamadzi ilinso m'gulu la valavu yowunikira.
Valavu yotetezera
Ntchito ya valavu yotetezera ndikuletsa kuti kuthamanga kwapakati mu payipi kapena chipangizocho kusapitirire mtengo womwe watchulidwa, potero kukwaniritsa cholinga choteteza chitetezo.
Valavu yowongolera: Valavu yowongolera imaphatikizapo mavavu owongolera, mavavu opindika ndi mavavu ochepetsa kupanikizika. Ntchito yawo ndikuwongolera kupanikizika, kuyenda ndi magawo ena a sing'anga.
Valavu yosinthira
Ma valve osinthira amakhala ndi ma valve osiyanasiyana ogawa ndi misampha, ndi zina zotero. Ntchito yawo ndi kugawa, kulekanitsa kapena kusakaniza zolumikizira zomwe zili munjira.
Sankhani malinga ndi ma valves othamanga
Vavu yopukutira
Valavu yomwe mphamvu yake yogwirira ntchito ndi yotsika kuposa mphamvu yokhazikika ya mlengalenga.
Valavu yotsika kwambiri
Valavu yokhala ndi mphamvu yocheperako ≤ Gulu 150lb (PN ≤ 1.6 MPa).
Valavu yapakati yopanikizika
Valavu yokhala ndi mphamvu yodziyimira payokha ya Class 300lb, Class 400lb (PN ndi 2.5, 4.0, 6.4 MPa).
Ma valve amphamvu kwambiri
Ma valve okhala ndi mphamvu zochepa za Class 600lb, Class 800lb, Class 900lb, Class 1500lb, Class 2500lb (PN ndi 10.0~80.0 MPa).
Valavu yothamanga kwambiri
Valavu yokhala ndi mphamvu yocheperako ≥ Gulu 2500lb (PN ≥ 100 MPa).
Sankhani ndi ma valve kutentha kwapakati
Ma valve otentha kwambiri
Amagwiritsidwa ntchito pa ma valve okhala ndi kutentha kwapakati t > 450 ℃.
Ma valve apakati otentha
Amagwiritsidwa ntchito pa ma valve okhala ndi kutentha kwapakati kwa 120°C.
Ma valve a kutentha kwabwinobwino
Amagwiritsidwa ntchito pa ma valve okhala ndi kutentha kwapakati kwa -40 ℃ ≤ t ≤ 120 ℃.
Ma valve a Cryogenic
Amagwiritsidwa ntchito pa ma valve okhala ndi kutentha kwapakati kwa -100 ℃ ≤ t ≤ -40 ℃.
Ma valve otentha kwambiri
Amagwiritsidwa ntchito pa ma valve okhala ndi kutentha kwapakati t < -100 ℃.
Kudzipereka kwa Wopanga Valve wa NSW
Mukasankha Kampani ya NSW, simukungosankha kampani yopereka ma valve okha, komanso tikukhulupirira kuti tidzakhala bwenzi lanu la nthawi yayitali komanso lodalirika. Tikulonjeza kupereka ntchito zotsatirazi