1. Mechanicalchisimbiso ruzivo: kushanda musimboti wemakanika chisimbiso
Mechanical chisimbisochisimbiso cheshaft chisimbiso chinotsamira pane imwe kana akati wandei ezviso zvekupedzisira zvinotsvedza zvakaringana kune shaft kuti irambe yakakwana pasi pechiito chekumanikidza kwemvura uye iyo elastic simba (kana magineti simba) yemuripo meshini uye ine zvisimbiso zvekubatsira. kuwana kudzivirira kuvuza.
2. Kusarudzwa kwezvinhu zvinowanzoshandiswa zvema mechanical seals
Mvura yakacheneswa;normal tembiricha;(yakasimba) 9CR18, 1CR13 yakatarisana necobalt chromium tungsten, simbi yakakandwa;(static) impregnated resin graphite, bronze, phenolic plastiki.
Mvura yerwizi (ine sediment);normal tembiricha;(dynamic) tungsten carbide, (static) tungsten carbide
Mvura yegungwa;normal tembiricha;(yakasimba) tungsten carbide, 1CR13 yakavhara cobalt chromium tungsten, simbi yakakandwa;(static) impregnated resin graphite, tungsten carbide, cermet;
Superheated mvura 100 degrees;(dynamic) tungsten carbide, 1CR13 yakatarisana necobalt chromium tungsten, simbi yakakandwa;(static) impregnated resin graphite, tungsten carbide, cermet;
peturu, mafuta ekuzora, liquid hydrocarbon;normal tembiricha;(dynamic) tungsten carbide, 1CR13 yakatarisana necobalt chromium tungsten, simbi yakakandwa;(static) impregnated resin kana tin-antimony alloy graphite, phenolic plastiki.
peturu, mafuta ekuzora, liquid hydrocarbon;100 madhigirii;(yakasimba) tungsten carbide, 1CR13 yakatarisana necobalt chromium tungsten;(static) yakaiswa bhuronzi kana resin graphite.
peturu, mafuta ekuzora, liquid hydrocarbons;ine zvidimbu;(dynamic) tungsten carbide;(static) tungsten carbide.
3. Mhando uye kushandiswa kwekuisa chisimbiso zvinhu
The zvekuisa chisimbiso inofanira kusangana nezvinodiwa zvekuisa chisimbiso kuita.Nekuti midhiya inofanirwa kuiswa chisimbiso yakasiyana uye mamiriro ekushanda emidziyo akasiyana, kuisa chisimbiso zvinhu zvinodiwa kuti zvive nekuchinjika kwakasiyana.Zvinodiwa zvekuvharisa zvinhu zvinowanzo:
1) Izvo zvinhu zvine density yakanaka uye hazvisi nyore kuburitsa midhiya;
2) Iva nesimba rakakodzera remagetsi uye kuoma;
3) Good compressibility uye kusimba, diki deformation zvachose;
4) Haina kupfava kana kuora pakupisa kwakanyanya, haina kuoma kana kuputika pakudzika kwakadzika;
5) Iyo ine yakanaka corrosion resistance uye inogona kushanda kwenguva yakareba muasidhi, alkali, mafuta uye mamwe midhiya.Kuwanda kwaro uye kuoma kushanduka kuduku, uye haanamatira kune simbi yepamusoro;
6) Diki friction coefficient uye yakanaka kupfeka kuramba;
7) Iyo ine kuchinjika kusanganisa neiyokuisa chisimbiso pamusoro;
8) Kuramba kwakanaka kwekuchembera uye kusimba;
9) Zviri nyore kugadzirisa nekugadzira, zvakachipa uye zviri nyore kuwana zvinhu.
Rubberndiyo inonyanya kushandiswa sealing material.Pamusoro perabha, zvimwe zvakakodzera zvekuisa chisimbiso zvinhu zvinosanganisira graphite, polytetrafluoroethylene uye akasiyana sealants.
4. Unyanzvi hunokosha hwekuisa uye kushandiswa kwema mechanical seals
1).Radial runout yemidziyo inotenderera shaft inofanira kuva ≤0.04 mm, uye axial movement haifaniri kunge yakakura kudarika 0.1 mm;
2) Chikamu chekuisa chisimbiso chemidziyo chinofanira kuchengetwa chakachena panguva yekuiswa, zvikamu zvekuisa chisimbiso zvinofanira kucheneswa, uye chiso chekuvhara chisimbiso chinofanira kunge chakasimba kudzivirira kusvibiswa uye guruva kubva pakuunzwa muchikamu chekuisa chisimbiso;
3).Izvo zvinorambidzwa zvachose kurova kana kugogodza panguva yekumisikidza kuti udzivise kukanganisa kukanganiswa kune mechanical chisimbiso uye chisimbiso kukundikana;
4) Panguva yekuisa, dhizaini yemafuta akachena emuchina anofanirwa kuiswa kumusoro achisangana nechisimbiso kuti ave nechokwadi chekuisa mushe;
5) Paunenge uchiisa iyo static ring gland, iyo yekusimbisa screws inofanirwa kusimbiswa zvakaenzana kuti ive nechokwadi cheperpendicularity pakati pekupedzisira kwechiso cheiyo static mhete uye axis mutsara;
6) Mushure mekuiswa, sundidzira mhete inofamba neruoko kuita kuti mhete inofamba ifambe zvakanaka pane shaft uye ine imwe dhigirii yekunyungudika;
7) Mushure mekuisa, shandura shaft inotenderera neruoko.Iyo shaft inotenderera haifanirwe kunzwa inorema kana kurema;
8) Midziyo yacho inofanirwa kuzadzwa nevezvenhau isati yashanda kudzivirira kukakavara kwakaoma uye kukundikana kwechisimbiso;
9) Zvekupenya zviri nyore uye granular midhiya, kana tembiricha yepakati iri> 80OC, inoenderana nekutsvaira, kusefa, uye kutonhora matanho anofanirwa kutorwa.Ndokumbira utarise kune akakodzera zviyero zvemakanika zvisimbiso zveakasiyana midziyo yekubatsira.
10).Panguva yekuisa, musara wemafuta akachena emuchina anofanirwa kuiswa kumusoro uchisangana neiyochisimbiso.Kunyanya kutarisisa kunofanirwa kubhadharwa pakusarudzwa kwemafuta emuchina kune akasiyana ekubatsira chisimbiso zvinhu kudzivirira kuita kuti O-mhete iwedzere nekuda kwekupindira kwemafuta kana kukurumidza kuchembera, zvichikonzera kuvharwa nguva isati yakwana.Hazvina basa.
5. Ndeapi matatu ekuvharisa mapoinzi emuchina shaft chisimbiso, uye misimboti yekuisa chisimbiso yeaya matatu ekuvharisa mapoinzi.
Thechisimbisopakati pemhete inofamba uye static ring inotsamira pane elastic element (spring, bellows, etc.) uyemvura inovharadzvinyiriro yekuburitsa simba rekutsikirira rakakodzera (reshiyo) panzvimbo yekubata (yekupedzisira kumeso) yerin'i inofamba inofamba uye mhete yakamira.Dzvinyiriro) inoita kuti zviso zviviri zvakatsetseka uye zvakatwasuka zviso zvakanyatsoenderana;iyo firimu yakaonda kwazvo yemvura inochengetwa pakati pezviso zvekupedzisira kuti iwane chisimbiso chekuita.Iyi firimu ine mvura ine simba inodzvanywa uye static kumanikidza, iyo inotamba basa rekuenzanisa kudzvanywa uye kuzora iyo yekupedzisira kumeso.Chikonzero nei zviso zvese zvekupedzisira zvichifanirwa kuve zvakatsetseka uye zvakatwasuka kugadzira kukwana kwakakwana kwezviso zvekupedzisira uye kuenzana nekudzvanywa chaiko.Ichi chisimbiso chekutenderera.
6. Mechanical chisimbisoruzivo uye marudzi emakanika chisimbiso tekinoroji
Parizvino, zvakasiyana-siyana zvitsvamechanical sealmatekinoroji anoshandisa zvinhu zvitsva uye maitiro ari kufambira mberi nekukurumidza.Pane zvinotevera zvitsvamechanical sealmichina.Kuvhara pamusoro groovesealing technologyMumakore achangopfuura, akasiyana anoyerera grooves akavhurwa pachisimbiso chekupedzisira kumeso kwemakanika zvisimbiso kugadzira hydrostatic uye dynamic pressure mhedzisiro, uye ichiri kuvandudzwa.Zero leakage yekuisa chisimbiso tekinoroji Kare, yaigarotendwa kuti kubata uye kusaonana nemakanika zvisimbiso hazvaigona kuwana zero leakage (kana kusadonha).Israel inoshandisa yakatsvetwa yekuisa chisimbiso tekinoroji kupa pfungwa nyowani ye zero-leakage isiri-inobata mehendi yekupedzisira kumeso zvisimbiso, iyo yakashandiswa mukuzora mafuta pombi mumagetsi enyukireya.Dry running gasi sealing tekinoroji Rudzi urwu rwechisimbiso rinoshandisa slotted sealing tekinoroji yekuvhara gasi.Tekinoroji yekupomba yekuvharisa yekumusoro inoshandisa migero inoyerera panzvimbo yakavharwa kupomba mvura shoma inobuda kubva kuzasi ichidzokera kumusoro.Zvimiro zvemaitiro emhando dzataurwa pamusoro apa dzezvisimbiso ndeidzi: dzinoshandisa grooves isina kudzika, uye iyo firimu ukobvu uye kudzika kweiyo flow groove zvese zviri zviviri micron-level.Ivo zvakare vanoshandisa mafuta ekuzora, madhamu ekuisa chisimbiso eradial uye circumferential yekuisa chisimbiso weirs kugadzira yekuisa chisimbiso uye inotakura zvinhu.Zvinogona zvakare kutaurwa kuti grooved chisimbiso musanganiswa we flat chisimbiso uye grooved bearing.Zvakanakira kudonha kudiki (kana kunyangwe kusadonha), hombe yefirimu ukobvu, kubviswa kwekukakavadzana, uye kuderera kwesimba rekushandisa uye fivha.Thermal hydrodynamic yekuisa chisimbiso tekinoroji inoshandisa akasiyana yakadzika chisimbiso pamusoro pemvura inoyerera grooves kukonzera yemuno kupisa deformation kuburitsa hydrodynamic wedge athari.Rudzi urwu rwechisimbiso chine hydrodynamic pressure inotakura simba inonzi thermohydrodynamic wedge seal.
Bellows yekuisa chisimbiso tekinoroji inogona kukamurwa kuita akaumbwa simbi mabhero uye welded simbi mabhero mechanical sealing tekinoroji.
Multi-end sealing tekinoroji yakakamurwa kuita kaviri chisimbiso, yepakati mhete yekuisa chisimbiso uye yakawanda-chisimbiso tekinoroji.Pamusoro pezvo, kune parallel surface sealing tekinoroji, yekutarisa yekuisa chisimbiso tekinoroji, yakasanganiswa yekuisa chisimbiso tekinoroji, nezvimwe.
7. Mechanical chisimbisoruzivo, mechanical seal flushing scheme uye maitiro
Chinangwa chekutsvaira ndechekudzivirira kuunganidzwa kwetsvina, kudzivirira kuumbwa kwemabhegi emhepo, kuchengetedza nekuvandudza lubrication, nezvimwewo Kana kutonhora kwemvura inoputika kwakaderera, kunewo kutonhora.Nzira huru dzekutsvaira ndedzinotevera:
1. Kugezesa kwemukati
1. Positive scour
(1) Zvimiro: Iyo yakavharwa svikiro yeanoshanda inoshandiswa kusuma kamuri yekuisa chisimbiso kubva kumagumo epombi kuburikidza nepombi.
(2) Kushandisa: inoshandiswa kuchenesa mvura.P1 yakakura zvishoma pane P. Kana tembiricha yakakwira kana paine tsvina, zvinotonhorera, mafirita, nezvimwewo zvinogona kuiswa papombi.
2. Backwash
(1) Zvimiro: Iyo yakavharwa yesvikiro yeanoshanda inopinzwa mukamuri yekuvharira kubva kunobuda kunoperera pombi, uye inoyerera ichidzokera kunopinza pombi kuburikidza nepombi mushure mekutsvaira.
(2) Kushandisa: inoshandiswa pakuchenesa mvura, uye P inopinda 3. Kuzara kwemvura
(1) Zvimiro: Iyo yakavharwa yesvikiro yeanoshanda inoshandiswa kusuma kamuri yekuvharisa kubva panoperera pombi kuburikidza nepombi, uye yobva yayerera ichidzokera kunopinda nepombi nemupombi mushure mekutsvaira.
(2) Kushandisa: Mhedzisiro yekutonhodza iri nani pane yekutanga maviri, inoshandiswa pakuchenesa mvura, uye kana P1 iri pedyo neP mukati uye P kunze.
2. Kusvirwa kwekunze
Zvimiro: Isai mvura yakachena kubva kune yekunze sisitimu inoenderana neyakavharwa svikiro kusvika kune chisimbiso mhango yekugezesa.
Chishandiso: Iyo yekubuda mvura yekugezesa yekunze kumanikidzwa kunofanirwa kuve 0.05--0.1MPA yakakura kupfuura yakavharwa svikiro.Inokodzera mamiriro ezvinhu apo iyo yepakati iri kupisa kwakanyanya kana ine yakasimba particles.Kuyerera kwemvura inoyerera kunofanirwa kuve nechokwadi kuti kupisa kwabviswa, uye kunofanirawo kusangana nezvinodiwa zvekutsvaira pasina kukonzera kukukurwa kwezvisimbiso.Kuti izvi zviitike, kudzvinyirirwa kwekamuri yechisimbiso uye kuyerera kwekuyerera kunoda kudzorwa.Kazhinji, kuyerera kwemvura yakachena yekugezesa kunofanirwa kunge kuri pasi pe5M/S;slurry fluid ine zvimedu inofanira kuva isingasviki 3M/S.Kuti uwane kukosha kwekuyerera kwepamusoro, mvura inoyerera uye chisimbiso chivharo chinofanira kuva Musiyano wekumanikidza unofanirwa kunge uri <0.5MPA, kazhinji 0.05--0.1MPA, uye 0.1--0.2MPa yezvisimbiso zvemagetsi ekupedzisira maviri.Nzvimbo yekupinda mukati memvura inoyerera kuti ipinde uye ibudise mhango yekuvharisa inofanira kusetwa yakatenderedza kumagumo kwechiso uye pedyo nedivi rerin'i inofamba.Kuti udzivise mhete yegraphite kubva pakunyungudika kana kukanganiswa nekusiyana kwekushisa nekuda kwekutonhora kusingaenzaniswi, pamwe nekusachena kuunganidza uye kubika, nezvimwewo, Tangential sumo kana multi-point flushing inogona kushandiswa.Kana zvichidikanwa, mvura inoyerera inogona kunge iri mvura inopisa kana mupfu.
Nguva yekutumira: Oct-31-2023