Chii chinonzi bearing yemhepo
Kutakura, Ndinotenda kuti munhu wese achaziva, bheyaringi redu rinowanzoshandiswa rinofanira kunge riri iro rinonyanya kuzivikanwa, chikamu chakakosha chemichina yemazuva ano nemidziyo. Saka chii chinonzi bheyaringi yemhepo?
Kutakura gasi: Chinhu chisina kuenzana chinoshandisa gasi semafuta. Mafuta anonyanya kushandiswa negasi imhepo, asi nitrogen, argon, hydrogen, helium kana carbon dioxide zvinogonawo kushandiswa sezvinodiwa.
Muma compressor egasi, ma expander nema circulator, nzvimbo inoshanda inowanzo shandiswa semafuta.
Kutakura mweya zvinoreva kutakura kunotsigira mutoro nerubatsiro rwefirimu remhepo rinomanikidzwa rinoumbwa pakati pepamusoro pechipiri chinotsvedza chebearing, uye pamusoro pechipiri chinotsvedza chinoparadzaniswa zvachose nefirimu remhepo parinenge richishanda.
Mabheyaringi emhepo ndeemabheyaringi anotsvedza emvura ari mumabheyaringi anotsvedza, ayo anozorwa mvura paanenge achishanda, uye nzvimbo yawo yekuzora imhepo.
Kupatsanurwa kwemabheyaringi emhepo
Zvichienderana nemaitiro ekuumbwa kwefirimu remhepo inomanikidza, mabheyaringi emhepo akakamurwa zvikuru muzvikamu zviviri: mabheyaringi emhepo inotenderera uye mabheyaringi emhepo inotenderera.
Firimu remhepo rinomanikidza rebearing yemhepo rinoumbwa nekuunza mhepo munzvimbo yakabatana pakati penzvimbo dzemaviri anotsvedza nekufamba kweviri kunotsvedza, uye firimu remhepo rakaita sewedge. Sezvo mabheringi emhepo asingade mhepo yekunze, anonziwo "mabheringi anozvishandira".
Firimu remhepo inomanikidza rebearing inotenderera rinoumbwa nemhepo inomanikidzwa yekunze inopinzwa kuburikidza ne throttle iri pakati pepamusoro pe sliding pair. Mabearing anotenderera anoda mhepo yekunze yakachena.
Zvinhu zvinotakura mhepo
(1) Kudzivirira kukweshana kwakaderera zvakanyanya
Sezvo viscosity yegesi yakaderera zvikuru pane yemvura, viscosity yemhepo patembiricha yemumba inongova 1/5000 chete yemafuta emuchina Nhamba 10, uye kuramba kwekukweshana kwebearing kwakanangana nekukweshana, saka kukweshana kwemabearing egasi kwakaderera pane kwemabearing ane mafuta emvura.
(2) Mhando dzakasiyana-siyana dzekumhanya kunoshanda
Kuramba kwekukweshana kwegasi bearing kwakaderera, kukwira kwetembiricha kwakaderera, uye kukwira kwetembiricha hakupfuure 20 ~ 30 °C kana kumhanya kwacho kuri 50,000 rpm, uye kumhanya kwacho kuri 1.3 miriyoni rpm. Mabheyaringi ehydrostatic anogonawo kushandiswa kumhanya kwakaderera zvikuru, kunyangwe kumhanya kusina zero.
(3) Kupisa kwakasiyana-siyana kunoshanda
Gasi iri rinoramba riri gasi pamhando dzakasiyana-siyana dzekupisa, uye viscosity yaro hainyanyi kukanganiswa nekupisa (viscosity inowedzera zvishoma pakupisa kuri kuwedzera, semuenzaniso kubva pa20°C kusvika 100°C, viscosity yemhepo inowedzera ne23%), saka mabheyaringi egasi anogona kushandiswa pakupisa kuri pakati pe -265°C kusvika 1650°C.
(4) Kukwanisa kushoma kwekutakura
Kugona kwekutakura kwe hydrodynamic bearing kwakanangana nekusimba, uye kugona kwekutakura kwe pneumatic bearing kunongova zviuru zvishoma zvehukuru hwakaenzana hwe hydrodynamic bearing. Nekuda kwekumanikidzwa kwegasi, pane muganho wekutakura mutoro we gas dynamic bearing, uye mutoro pa unit imwe neimwe nzvimbo inofungidzirwa unogona kuwedzerwa kusvika 0.36 MPa chete.
(5) Zvinodiwa zvekugadzirisa zvakanyatsonaka
Kuti pave nekukwanisa kutakura mutoro uye kuomarara kwemhepo kwemabearing egasi, nzvimbo yekuberekesa (iri pasi pe0.015 mm) inowanzo shandiswa yemabearing ane mafuta emvura, uye kururama kwezvikamu kunofanirwa kuvandudzwa zvinoenderana.
Kushandiswa kwemabheyaringi emhepo
Kubata mhepo imhando itsva yekubata inoshandisa simba remhepo rinotenderera kuti ribatsire.
Mafuta ekushandisa ndiwo ega anoshandiswa mhepo; saka tekinoroji yemhepo inobatsira zvinhu zvekushanda zvisina kusvibiswa kana nzvimbo dzekushanda.
Muma "air bearing", mabhora anotsiviwa nema "air cushion". Pamwe imwe yenzira dzinozivikanwa zvikuru dze "air bearing" ndeye "hovercraft".
Feni huru inofefetera mhepo iri pasi pechikepe chinobhururuka, ichivhara kubuda kwemhepo kuburikidza ne "skirt" yerabha inonamira. Kumanikidzwa kwemhepo kwakakwira kunobva pasi pechikepe chinobhururuka kunotsigira huremu hwechikepe uye nokudaro chinoita kuti chiyangarare pamusoro pechitsigiro chemhepo.
Kushandiswa kwemagasi bearings kuri kuramba kuchikura uye kwave kuchidzidzwa zvakanyanya. Parizvino, magasi bearings anogona kushandiswa mumichina yemachira, michina yetambo, maturusi emuchina wezvishandiso, magyroscopes, macentrifugal separator anomhanya nekukurumidza, madhiri emazino, mafiriji anomhanya patembiricha yakaderera, mahydrogen expanders uye magasi circulators anomhanya patembiricha yakakwira.
Nguva yekutumira: Kurume-28-2025
