Iwe unoona zvakawanda zvekutaura nezve pombi inoshanda, impeller dhizaini, mamakisi ezvinyorwa. The casing? Kazhinji kazhinji inobatwa seimba isina mbeveve, iyo inotevera. Iko kukanganisa kunodhura. Muchokwadi, the pombi casing ndiyo mudziyo wekumanikidza une zvese, unoraira mafambiro ekuyerera, unobata kushungurudzwa, uye kazhinji unoraira chirongwa chekuchengetedza. Ita zvisizvo, uye iyo yakanakisa impeller munyika haigoni kukuponesa.
Iyo Yakarasika Pfungwa: Ingori Kukanda
Apo mainjiniya anotsanangura a pombi casing, iyo dhizaini inobuda ine zvinhu specs uye kushivirira. Iko fungidziro ndeyekuti muvambi uchaidurura, chitoro chemuchina chinoipedza, uye ichabhauswa kumusoro. Chokwadi chakanyanya. Sarudzo pakati peiyo static cast uye ganda mold kukanda, semuenzaniso, haisi yekungopedza pamusoro. Ndezvekuperera kwemukati. Kukandwa kwegedhi rakashata kunogona kusiya nzvimbo dzekushushikana dzasara muhuro yevolute. Iwe hauzozvioni pamushumo wekuongorora, asi iwe unozonzwa sekuzununguka kunoramba kuripo pane dzimwe nzvimbo dzekushanda, dambudziko rinopihwa mhosva pa rotordynamics kwemwedzi.
Ndakadzidza izvi nenzira yakaoma pane purojekiti yepombi yemvura yeboiler makore kumashure. Iwo macasings akatsanangurwa mune duplex Stainless simbi yekudzivirira ngura. Iyo yekutanga inounzwa kuprinta, inotaridzika yakakwana. Asi panguva yekuedzwa kwemvura, takave nekuchema kubva kune chikamu chaiita sechakasimba. NDT yakawana shrinkage cavity cluster, isina kukura zvekutadza bvunzo zvachose, asi yakavimbiswa kutadza nzira pasi pekupisa bhasikoro. Chikonzero chikuru? Dhizaini yekudyisa nekusimuka kweiyo alloy uye mukobvu wemadziro dhizaini yakanga isina kukwana. Vaive vakanaka neCF8M yakajairwa, asi duplex yaibata zvakasiyana panguva yekusimba. Ndiyo nuance yaunowana chete kubva kune mutengesi anonzwisisa simbi sechikamu chemaitiro ekukanda, kwete sebhokisi rekutarisa rakasiyana.
Apa ndipo panoratidza hudzamu hwekambani. Ndakaongorora vatengesi se Qingdao Qiangsenyuan Technology Co., Ltd. (QSY). Kutarisa kwavo kwenguva refu shell mold casting uye kukandira kwekudyara kwezvikamu zvakaringana, kunyanya mune alloys akakosha, zvinoratidza kuti vangangove vakanetsana nematambudziko aya ekusimbisa mumapurojekiti mazhinji. Zvekutsoropodza pombi casing mune nickel-based alloy ye-high-tembiricha sevhisi, iyo maitiro ekuita ndiyo yauri kutenga, kwete chete machining kushivirira.
Machining: Ipo iyo Theoretical Inosangana Nenyama
Kunyangwe nekukandira kwakakwana, chikamu chekugadzira chinogona kuunza kutadza kwayo. Iko kukanganisa kwekirasi kubata iyo casing seyakareruka workpiece kuti inosungirirwa patafura yeCNC. Iyo casing haina kuomarara; iyo yakaoma, yakatetepa-yakavakirwa geometry. Kugadzirisa zvisizvo kana kucheka zvine hukasha kunogona kuburitsa zvinonetsa zvekukanda, zvichiita kuti chikamu chifambe mushure mekuvhiya kwekutanga. Iwe unopedzisira uine zviso zveflange zvisina sikweya kana mabhoti maburi mapatani anodonha.
Kutevedzana kunokosha zvikuru. Iwe unobvisa iyo volute mbiri usati wapedza kana mushure mekupedza flange uye nekusimbisa zviso? Pane gakava. Vamwe machinists vanosarudza kumisikidza iyo datum maficha kutanga kubva ku-as-cast state. Vamwe vanopokana nekubvisa huwandu hwezvinhu zvevolute kudzoreredza kushushikana, vozogadzirisazve kupedzisa machining. Ndakaona ese ari maviri achishanda uye ese ari maviri achikundikana, zvichienderana nehukuru hwekasi uye geometry. Chitoro chinoitawo kukanda, seQSY neyakasanganiswa yavo CNC machining kugona, ine mukana mukuru. Ivo vanogona kuronga hurongwa hwese kubva padanho repateni, vachiziva chaizvo kuti chikamu chichaitwa sei uye kutemwa, zvichida kunyange kugadzira mabhegi ekukanda akapetwa kaviri semachining zvigadziriso.
Ipapo pane kufinha kwechivharo cheshaft uye makamuri ekusimbisa. Izvi zvinoita kunge zvakatwasuka, asi concentricity uye pamusoro pekupedzisira pano ndizvo zvese zvehupenyu hwechisimbiso. Mucherechedzo wekutaura wausingakwanise kunzwa nechigunwe unoparadza chisimbiso mumavhiki. Akanaka machinist achave nekunzwa kweiyo chaiyo chishandiso nzira, chikafu, uye inotonhorera application yezvinhu zvakasiyana-yakakanda iron, 316 stainless, kana gummy duplex. Haisi chirongwa chete.
Iyo Material Maze: Kupfuura Stainless Simbi
Kutsanangura simbi isina tsvina kune a pombi casing hazvina zvazvinoreva. Ndiyo yakajairwa austenitic senge 304/316? Iyo martensitic senge CA15 yekudzivirira kukurwa kwevhu? Iyo super duplex senge 2507 yenzvimbo dzechloride? Kana nickel-based alloy seInconel 625 yekupisa kwakanyanya uye ngura? Imwe neimwe inoita zvakasiyana panguva yekukanda, kugadzira, uye mubasa.
Ini ndinorangarira chirongwa chepombi yekutonhodza mvura yegungwa apo yekutanga spec yaive 316L. Yaifanira kunge yakashanda. Asi mumvura iyoyo yegova remvura, ine ma chlorides akakwira uye microbiological chiitiko, takawana gomba rakasimba uye kukoromoka kwegomba pazviso zvegasket mukati megore. Iyo gadziriso yaive switch kune yepamusoro-giredhi super duplex. Kubata? Super duplex inozivikanwa nehunyengeri kukanda uye kupisa kubata nemazvo kuchengetedza chikamu chayo chiyero. Iwe unoda chivakwa chinogona kunyatso kudzora mwero wekutonhora uye kugadzirisa annealing. Kana vakazvipotsa, unowana sigma phase kunaya, zvichiita kuti zvinhu zvipere. Mutengesi ane ruzivo ne special alloys, sezvakataurwa muQSY's portfolio, yaizogara iine maprotocol eizvi. Vaizoziva machati ekugadzirisa kupisa kwezvinhu izvi nemusoro.
Kune masevhisi asinganyanyi kuodza asi abrasive - funga slurry kana madota - simbi yakakandwa ine nickel-chrome yakaoma yakatarisana munzvimbo dzakananga ingave sarudzo yepragmatic. Sarudzo haisi yemvura chete; ndezvemutengo wakakwana wevaridzi, kuyera mutengo wekutanga wezvinhu zvichipesana nehupenyu hunotarisirwa hwekupfeka uye kuderera kwekugadzirisa.
Kubatanidzwa & Iyo Yechokwadi-Nyika Muedzo
Humbowo hwekupedzisira hwe a pombi casing iri pa skid, pasi pekumanikidzwa. Apa ndipo panowanikwa nyaya dzese dzakavanzwa. Imwe inoenderera mberi musoro ndeye gasket seating. Flange flatness pamufananidzo ndechimwe chinhu; kuwana girazi-kupedzisa, isina masaisai pamusoro penzvimbo huru, isina kujairika yekukanda flange mushure mekugadzira ndeimwewo. Ndapedza mazuva ndiine dhayi yebhuruu uye machira-akagadzika maoko mahombe akadonha payekutanga hydro-bvunzo nekuda kwekorona diki pakati pechiso cheflange. Mazuva ano CNC kugaya kunofanirwa kubvisa izvi, asi kutsauswa kwechishandiso pakusvika kureba kana kusara kunetseka kunogona kuchikonzera.
Imwe pfungwa yekubatanidza inorwadza ndeyekukodzera nemukati kupfeka zvikamu. Iyo clearance pakati pecasing wear ring uye impeller wear ring yakakosha. Kana iyo casing yakabereka ikakanganisa kunyangwe zvishoma mushure mekugadzira (zvakare, kudzoreredza kunetseka), kana kana iyo casing isingatsigirwe nemazvo kana yakavharirwa pachigadziko chayo, iyo clearance inogona kubuda kunze, kuuraya kunyatsoshanda. Iwe dzimwe nguva unofanirwa kupedzisa-kubereka casing nayo yakaiswa pachigadziko chayo, nhanho inonetsa asi inodiwa yemapombi makuru, ane simba guru.
Chiratidzo chinonyanya kutaura chemhando yecasing? Mafambiro azvinoita panguva yekubvisa-pasi mushure memakore ebasa. Imwe yakanaka icharatidza kunyange kupfeka mu volute. Murombo anenge aine erosion maitiro akasiyana, cavitation gomba munzvimbo chaidzo, kana kutsemuka kunobva mukunyanya kunetseka pamakona emukati akapinza- makona aifanira kunge akaiswa fillet asi pamwe zvisina kukonzerwa nekugadzira mapatani kana kuganhurwa kwegungano.
Mhedziso: Iyo Isingaoneki Musana
Saka, kwete pombi casing harisi goko chete. Ndiyo nheyo yekumanikidza muganho, gwara rekuyerera, uye kazhinji chinomisa chinhu chekuvimbika. Hunhu hwayo ibasa rakananga rehunyanzvi hwakadzama hwakabatanidzwa-mumetallurgy, kukanda dhizaini dhizaini, kunetseka-kuziva machining, uye ruzivo rwegungano rinoshanda. Haukwanise kuzvitarisa nerondedzero iri nyore. Zvinoda mutengesi ane ruzivo runofamba rwendo rwese kubva kusimbi yakanyungudutswa kusvika pakugadzirisa kwekupedzisira, rudzi rwekubatanidza kwakatwasuka uko mafemu ane makumi emakore kugadzira uye kugadzira kukudziridza zvakasikwa. Musiyano hauratidzike pamutengo wekutenga; inoratidza mukati menguva pakati pekutadza pasaiti, inova ndiyo yega metric inonyanya kukosha.
