CNSME

Mukushandiswa kweslurry pombi, Nekuwedzera kwekushandiswa kwezvisimbiso zvemagetsi, dambudziko rekudonha rakakwevera zvakanyanya uye zvakanyanya kutariswa. Kushanda kwema mechanical seals kunokanganisa zvakananga kushanda kwepombi. Pfupiso nekuongorora ndezvinotevera.

1. Periodic leakage

(1) Iyo axial movement yepombi rotor yakakura, uye kupindira pakati pechisimbiso chekubatsira uye shaft yakakura, uye mhete inotenderera haigoni kufamba zvakanaka pane shaft. Mushure mekunge pombi yashandurwa uye zvindori zvinotenderera uye zvakamira zvakapfekwa, kutama hakugone kubhadharwa.

Kugadzirisa: Paunenge uchiunganidza chisimbiso chemagetsi, kufamba kweaxial ye shaft kunofanira kuva pasi pe 0.1mm, uye kupindira pakati pechisimbiso chekubatsira uye shaft kunofanira kuva pakati. Ndichiri kuve nechokwadi cheiyo radial chisimbiso, iyo inotenderera mhete inogona kuchinjika inofambiswa pane shaft mushure mekusangana. (Dzvanya rin'i inotenderera kuchitubu uye inogona kudzoka yakasununguka).

(2) Kusakwana kwemafuta ekuisa chisimbiso kunokonzeresa kukakavara kwakaoma kana roughness pane yekuisa chisimbiso chepamusoro.

Solution:

A) Horizontal slurry pombi: Mvura inotonhorera inokwana inofanira kupihwa.

B) Submersible sewage pombi: Kureba kwenzvimbo yemafuta ekuzora mukamuri yeoiri kunofanirwa kunge kwakakwira kupfuura yekuvharisa pamusoro pezvindori zvine simba uye static.

(3) Rotor inodedera nguva nenguva. Chikonzero chacho ndechokuti kukanganiswa kwe stator uye kumusoro uye pasi pekupedzisira zvivharo kana kusaenzana kweimpeller uye shaft huru, cavitation kana kutakura kukanganisa (kupfeka) kuchakonzerwa. Iyi mamiriro achapfupisa hupenyu hwechisimbiso uye kukonzera kuvuza.

Solution: Dambudziko riri pamusoro rinogona kugadziriswa zvinoenderana nechiyero chekuchengetedza.

2. Kudonha nekuda kwekumanikidzwa

(1) Mechanical seal leakage inokonzerwa nekumanikidza kwakanyanya uye mafungu ekumanikidza. Kana iyo chitubu chakananga kudzvinyirirwa uye yakazara chaiyo yekumanikidza dhizaini yakawandisa uye kudzvanywa muvhavha yechisimbiso ichipfuura 3 MPa, iyo chaiyo kudzvanywa kwechisimbiso chekupedzisira kumeso kuchave kwakakurisa, firimu remvura richanetsa kuumba, uye chisimbiso chinopera. chiso chichapfekwa zvakanyanya. , Chizvarwa chekupisa chinowedzera, chinokonzera deformation yekupisa kwechisimbiso chepamusoro.

Kugadzirisa: Paunenge uchiunganidza chisimbiso chemagetsi, kusungirirwa kwechitubu kunofanira kuitwa maererano nemitemo, uye haibvumirwi kuva yakakura kana kuti duku. Matanho anofanirwa kutorwa kune chisimbiso che mechanical pasi pemamiriro ekudzvinyirira. Kuti iite kuti kuguma kwechiso kusimba kuve kunonzwisisika uye kuderedza deformation, zvinhu zvine simba rakasimba rekumanikidza senge simende carbide uye ceramic zvinogona kushandiswa, uye kutonhora nekuzora nzira dzinofanirwa kusimbiswa, uye nzira dzekufambisa dzekufambisa dzakadai sekiyi nemapini zvinogona kusarudzwa.

(2) Mechanical seal leakage inokonzerwa nekushanda kwevacuum. Panguva yekutanga uye kumira kwepombi, nekuda kwekuvharika kwepombi inopinza uye gasi riri mukati mepombi yepakati, inogona kukonzera kudzvinyirira kwakashata mugomba rakavharwa. Kana paine kudzvinyirirwa kwakashata mugomba rakavharwa, Dry friction pamagumo echisimbiso ichakonzerwa, izvo zvinokonzeresa kubuda kwemhepo (mvura) mune yakavakirwa-mukati mechisimbiso. Musiyano uripo pakati pevacuum seal uye yakanaka yekumanikidza chisimbiso ndiwo mutsauko mugwara rechinhu chekuisa chisimbiso, uye mechanical chisimbiso zvakare ine kuchinjika kwayo mune imwe nzira.

Solution: Adopt kaviri magumo kumeso mechanical seal, iyo inobatsira kuvandudza lubrication mamiriro uye kunatsiridza yekuisa chisimbiso. (Cherechedza kuti horizontal slurry pombi kazhinji haina dambudziko iri mushure mekubaiwa kwepombi inopinza)

3. Mechanical seal leakage inokonzerwa nemamwe matambudziko

Pachine nzvimbo dzisina musoro mukugadzira, kusarudzwa, uye kuiswa kwemakanika zvisimbiso.

(1) Kudzvanywa kwechitubu kunofanirwa kuitwa zvinoenderana nemirairo. Kunyanyisa kana kudiki zvakanyanya hazvibvumidzwe. Iko kukanganisa ndeye ± 2mm. Kudzvanya kwakanyanyisa kuchawedzera kudzvanywa kwechiso chekupedzisira, uye kupisa kwakanyanya kunopisa kunokonzeresa deformation yenzvimbo yekuisa chisimbiso uye nekumhanyisa kupera kwechiso kupfeka. Kana iyo compression yakanyanya kudiki, kana iyo chaiyo kudzvanywa kweiyo static uye dynamic mhete yekupedzisira zviso isina kukwana, chisimbiso hachigone kuitwa.

(2) Nzvimbo yekupedzisira yeshaft (kana sleeve) panoisirwa ringin'i yechisimbiso chemhete uye nzvimbo yekupedzisira yegland yekuisa chisimbiso (kana imba) panoisirwa static ring ring ring inofanira kucheneswa uye kuchekwa kudzivirira kukanganisa iyo inofamba uye yakasimba mhete seal mhete panguva yegungano.

4. Kudonha kunokonzerwa nepakati

(1) Mushure mekudzurwa kwezvisimbiso zvemechanichani pasi pekuora kana tembiricha yakakwira, zvisimbiso zvetsigiro zvemhete yakamira uye mhete inotakurika inelastic, uye imwe yakaora, zvichikonzera kudonha kukuru kwechisimbiso chemuchina uye kunyangwe chiitiko che kugaya shaft. Nekuda kwekuora kwekushisa kwepamusoro, asidhi isina simba uye alkali isina simba mutsvina pane static ring uye yekubatsira rabha chisimbiso chemhete inofamba, iyo mechanic leakage yakakura zvakanyanya. Izvo zvinhu zvekufamba uye static mhete rubber sealing ring is nitrile-40, iyo isingamiri kune yakanyanya kupisa. Haidziviriri kune acid uye alkali, uye iri nyore kuita ngura kana tsvina ine acidic uye alkaline.

Solution: Kune corrosive media, zvikamu zverabha zvinofanirwa kunge zvine fluorine rabha inoshingirira kupisa kwakanyanya, isina simba asidhi uye isina simba alkali.

(2) Mechanical seal leakage inokonzerwa neakasimba particles uye tsvina. Kana zvimedu zvakasimba zvakapinda kumagumo chiso chechisimbiso, chinokwenya kana kukurumidza kupera kwechiso chekupedzisira. Kuunganidzwa kwechiyero chechiyero neoiri pane shaft (sleeve) pamusoro inodarika mwero wekupfeka weiyo friction pair. Nekuda kweizvozvo, iyo mhete inofambisa haigone kubhadhara kusimuka kwekupfeka, uye hupenyu hwekushanda hweiyo yakaoma-kune-yakaoma friction pair yakareba kupfuura iyo yakaoma-ku-graphite friction pair, nekuti iyo yakasimba particles ichaiswa mukati. chisimbiso pamusoro pe graphite sealing ring.

Solution: Mechanical chisimbiso che tungsten carbide kune tungsten carbide friction pair inofanira kusarudzwa munzvimbo iyo yakasimba zvidimbu zviri nyore kupinda. …

Izvo zviri pamusoro zvinopfupikisa zvinowanzoitika zvikonzero zvekudonha kwema mechanical seals. Iyo mechanical chisimbiso pachayo imhando yepamusoro-chaiyo chikamu chine zvinodiwa zvepamusoro, uye ine zvakakwirira zvinodiwa pakugadzira, machining, uye gungano remhando. Paunenge uchishandisa zvisimbiso zvemakanika, zvinhu zvakasiyana-siyana zvekushandiswa kwezvisimbiso zvemakanika zvinofanirwa kuongororwa, kuitira kuti zvisimbiso zvemakanika zvienderane nezvinodiwa zvehunyanzvi uye zvepakati zvinodiwa zvemapombi akasiyana uye zvine mamiriro akakwana ekuzora, kuitira kuti ave nechokwadi chenguva refu uye yakavimbika. kushanda kwezvisimbiso.