Mukudziwa, pamene anthu ambiri kunja kwa munda amva 'check valve', amajambula cheke chosavuta mumzere wa madzi. Zili bwino, koma zimangokanda pamwamba. Kukambitsirana kwenikweni kumayamba mukamatchula mzere wa nthunzi yothamanga kwambiri, kapena makina osinthira mankhwala owononga, ndipo mumazindikira kuti kusankha pakati pa cheke chapawiri-mbale ndi pisitoni sikwaphunziro—ndipo kusiyana pakati pa kachitidwe kamene kamang'ung'udza ndi kamene kamadzipuntha m'miyezi isanu ndi umodzi. Ndaziwona zonse ziwiri.
Ntchito Yachikulu ndi Kuvuta Kobisika
Mfundo yake ndi yosavuta: kupewa kubwereranso. Koma kuphedwa? Kumeneko ndi kumene zaka zambiri za mutu zimakwiriridwa. Sizokhudza chimbale kapena mpira kuyimitsa m'mbuyo kuyenda; ndi za momwe imatsekeka mwachangu, kutsika kwapang'onopang'ono komwe kumapanga ikatsegulidwa, ndi zomwe zimachitika mugawika-sekondiko pamene kutuluka kumabwerera. Kutseka pang'onopang'ono chekeni valavu mumzere wotulutsa pampu ungayambitse nyundo yamadzi kwambiri mpaka imamveka ngati chitoliro chikugunda ndi nyundo. Ndinaphunzira kuti njira yovuta pa dongosolo madzi ozizira koyambirira kwa ntchito yanga. Tinagwiritsa ntchito cheke wamba chifukwa chinali chotchipa komanso chopezeka. Mafunde owopsa omwe adachitikawo adasokoneza koyenera miyezi iwiri atatumizidwa. Mtengo wa valve unali wopanda ntchito poyerekeza ndi nthawi yochepetsera ndi kukonza.
Ndicho chifukwa chake kusankha zinthu kumakhala kofunika kwambiri. Chitsulo chachitsulo chimatha kugwira ntchito m'madzi osafunikira, koma pachilichonse chokhala ndi kutentha, dzimbiri, kapena kuyabwa, mumayang'ana chitsulo, chosapanga dzimbiri, kapena ma aloyi apadera. Apa ndipamene kuyanjana ndi woyambitsa ndi makina omwe amamvetsetsa magawo ogwira ntchito ndikofunikira. Ndagwira ntchito ndi ma suppliers ngati Malingaliro a kampani Qingdao Qiangsenyuan Technology Co., Ltd. pama projekiti omwe amafunikira matupi oyendera ma valve. Zochitika zawo mu chipolopolo nkhungu kuponyera ndi kuponya ndalama kwa ma geometri ovuta, otsatiridwa ndi olondola CNC makina pampando ndi mfundo za hinge, ndizomwe zimatembenuza mapangidwe pamapepala kukhala gawo lodalirika. Simungangogula izi pashelefu yanthawi zonse; imayenera kupangidwa ndi kupangidwa ngati gawo la dongosolo.
Kusankhidwa kwa alloy kumapereka mwachindunji moyo wautumiki. Pogwiritsa ntchito madzi a m'ma boiler, thupi lachitsulo cha kaboni chokhala ndi nthiti zosapanga dzimbiri (disiki, pini ya hinge) likhoza kukhala lokwanira. Koma pamzere wodutsa muzomera zamankhwala zogwira ma chloride, mukunena zolimba chitsulo chosapanga dzimbiri kapenanso valavu ya aloyi ya nickel kuti mupewe kuwonongeka kwa dzimbiri. Ubwino woponyera pano siwongokambitsirana - porosity iliyonse kapena kuphatikizidwa m'malire oponderezedwa ndi malo otsikira amtsogolo.
Mitundu Yakuthengo: Kupitilira pa Catalog
Zolemba za Catalog zimakuuzani kukula ndi kukakamizidwa. Sakukuuzani kawirikawiri za machitidwe amphamvu. Tengani valavu yopanda phokoso kapena yothandizidwa ndi masika. Zabwino popewa slam, chabwino? Kawirikawiri, inde. Koma nthawi ina ndinawona kachitidwe komwe kasupe wa kasupe anali wokwera kwambiri kwa mutu wa mpope womwe ukupezekapo, kuchititsa kutsika kwapang'onopang'ono kosalekeza komanso zida zanjala zakutsika. Tinayenera kukoka valavu, kuyeza kasupe, ndikupeza chizolowezi chokhala ndi chotsitsa chochepa. Zinali tsatanetsatane yaying'ono yokhala ndi magwiridwe antchito.
Macheke okhala ndi mbale ziwiri ndiabwino populumutsa malo ndi kulemera kwake. Koma ngati mukulimbana ndi zinthu zamadzimadzi - monga slurry kapena madzi otayira - zingwezo ndi kalozera kakang'ono kozungulira mbale zitha kukhala zotsekera. Ndikhoza kutsamira poyang'ana mpira kapena kamangidwe ka disiki yopendekera nthawi imeneyo, ngakhale itakhala yokulirapo. Okonza adzakuthokozani pambuyo pake.
Ndiye pali valavu yowunikira. Odalirika kwambiri pamayendedwe okwera okwera. Koma ikani chopingasa popanda lingaliro lachiwiri, ndipo mwapanga cholembapo. Kalozera ndi kulemera kwa disc zimafunikira mphamvu yokoka kuti igwire ntchito momwe idapangidwira. Zikumveka zomveka, koma mungadabwe kuti nthawi zambiri zolakwika zoyika zimachitika chifukwa chakuti mtundu wa valve sunamveke pansi pakuyika.
Integration ndi System Mindset
A chekeni valavu si chilumba konse. Ntchito yake imamangiriridwa ku mpope wokhotakhota kumtunda ndi kayendedwe ka kayendedwe kake kumunsi. Kufotokoza m'modzi kumafuna kufunsa: Kodi mutu wotseka wa mpope ndi chiyani? Kodi valavu isanatseke mokwanira ndi iti? Kodi pali mwayi woyendetsa njinga za valve mofulumira, zomwe zingapangitse kuti muyambe kuvala pampando?
M'makina ogwiritsira ntchito, monga omwe amapangira ma hydraulic kapena lubrication system, valavu yowunikira nthawi zambiri imafunika kuphatikizidwa mu chipika chochuluka. Iyi si vavu yodziyimira panonso; ndi njira yopangidwa ndi makina ndi poppet kapena mpira ndi masika. Kulondola kwa makinawo - kumapeto kwa mpando, kutalika kwake, kuya kwa kasupe - kumakhudza mwachindunji kuchuluka kwa kutayikira komanso kuthamanga kwamphamvu. Awa ndi gawo lolondola, komwe kuli sitolo CNC makina Luso ndi luso la metrology ndizofunikira monga kuponya kosaphika.
Tinali ndi pulojekiti yoyesa mayeso yomwe imafuna valavu yolondola kwambiri, yotsika kwambiri. Chigawo chopanda shelefu sichingafanane ndi mapangidwe osiyanasiyana. Yankho lake linali kukhala ndi thupi la valve ndi mpando wopangidwa molunjika mu chipika chochuluka kuchokera pazitsulo zolimba zosapanga dzimbiri, zokhala ndi kasupe wokonzedwa bwino ndi mpira. Kulekerera kunali mu ma microns. Zinagwira ntchito mwangwiro chifukwa makinawo ankachiwona ngati chinthu chofunika kwambiri chowongolera madzimadzi, osati chidutswa chachitsulo chokhala ndi dzenje.
Mitundu Yolephereka ndi Diagnostics Zenizeni Zapadziko Lonse
Iwo samalephera mwachisomo. Nthawi zambiri, ndi kudontha (mpando wolephera), slam (njira yotseka yolephera), kapena kutsekeka kwathunthu (dimba lotsekeka kapena lotsekedwa). Matendawa nthawi zambiri amayamba ndi kumvetsera. Phokoso lamphamvu pakutseka kwa mpope limaloza kutseka pang'onopang'ono. Kulankhula kosalekeza, kokwera kwambiri kungatanthauze kuti valavu ikugwedezeka pamalo otseguka pang'ono chifukwa cha kuyenda kosakhazikika.
Internal dzimbiri ndi wakupha mwakachetechete. Ndatsegula a chekeni valavu kuchokera ku mzere wozizirira madzi a m'nyanja womwe umawoneka bwino kunja. Mkati mwake, pini ya hinjiyo inali itatsala pang'ono kuonongeka, ndipo chimbalecho chinatsekeredwa ngati mwezi. Zinthuzi zimayenera kukhala zosapanga dzimbiri 316, koma mtundu woponyedwa kapena giredi yeniyeni yomwe idagwiritsidwa ntchito sizinali zogwirizana ndi chilengedwe cha chloride. Ichi ndichifukwa chake kutsatiridwa ndi ma cert azinthu kuchokera kwa omwe akukupatsirani ndikofunikira. Kampani ngati QSY, yomwe imayang'ana kwambiri ma aloyi apadera, ingakhale njira yopitira kumalo ovuta kwambiri, opereka zinthu ngati duplex zosapanga dzimbiri kapena ma aloyi opangidwa ndi cobalt kuti avale kwambiri komanso dzimbiri.
Kuvala ndi nkhani ina. Mu dongosolo la nthunzi, ngakhale pang'ono kujambula kwa waya (kukokoloka kuchokera ku nthunzi yothamanga kwambiri) pampando kungayambitse kutayikira. Ikangoyamba, imathamanga. Nthawi zina, kukonza sikukhala valavu yatsopano koma kukonzanso-mwina kusunthira ku valavu yoyang'ana pamphuno yomwe imatha kupirira kukokoloka kwamtunduwu.
Spec Sheet ndi Poyambira, Osati Uthenga Wabwino
Pomaliza, mawu pa specifications. Gulu lamphamvu la ANSI (mwachitsanzo, Kalasi 150, 300) ndilokhudza thupi lokhala ndi mphamvu. Sichikunena chilichonse chokhudza kuthekera kwa makina otseka kuthana ndi kuthamanga kwa kuthamanga kapena kutopa kwapang'onopang'ono. Muyenera kuyang'ana deta ya wopanga kuti mutsegule kwambiri. Izi ndi manambala omwe amakulowetsani mu ballpark.
Musaganize kuti zitsulo zosapanga dzimbiri ndizokwanira. Tchulani kalasi: CF8M, Duplex 2205, Aloyi 20. Kusiyana kwa mtengo ndi ntchito ndi kwakukulu. Pazogwiritsa ntchito mwachizolowezi kapena zotsika kwambiri, apa ndipamene kukambirana zaukadaulo ndi bwenzi lanu lopanga ndikofunikira. Muyenera kufotokoza momwe mungagwiritsire ntchito - madzi, kutentha, kuthamanga, maulendo ozungulira - kuti athe kulangiza njira yabwino yoponyera (kuponya ndalama kwa matupi ovuta, omveka bwino; chipolopolo nkhungu kuponyera kwa maulendo akuluakulu a mawonekedwe ovuta kwambiri) ndi njira yopangira makina.
Pamapeto pake, kusankha valavu yoyenera ndi ntchito yogwiritsira ntchito machitidwe ndi sayansi yazinthu. Ndi za kuyembekezera momwe zidzakhalire osati mu labotale yoyesera, koma muphokoso, kunjenjemera, kuyendetsa njinga zamoto kwa mbewu yanu. Kusankha koyenera sikuwoneka - kumangogwira ntchito kwa zaka zambiri. Cholakwika chimadzilengeza chokha, chokwera mtengo komanso nthawi zambiri modabwitsa.
