Chii chinonzi DIN 24960 Mechanical Seal Standard?

Nhanganyaya

DIN 24960 ndiyo chiyero chekare chezvisimbiso zvemakanika chinoshandiswa mumapombi epakati, chakagadzirwa kuti zvisimbiso nepakati pepombi zvigone kufanotaurwa kune vagadziri. Kunzwisisa izvi kunobatsira kutsanangura kuti nei zvimwe zvisimbiso zvichichinjika, kuti zviyero zvekuisa zvakakosha sei, uye kuti geometry yebhokisi rekuisa pombi yakajairika sei. Chinyorwa chino chinotsanangura zvinofukidza DIN 24960, kusanganisira envelopu yayo yehukuru, magadzirirwo akajairika ezvisimbiso, uye mamiriro ekushanda, yobva yajekesa kuti inoenderana sei nezvinodiwa zvemazuva ano zveEurope uye nei zita racho richiri kuonekwa kakawanda muhunyanzvi hweinjiniya, makatalogu, uye sarudzo dzekutsiva.

Chii chinonzi DIN 24960 uye inofukidza chii

Mutemo weDIN 24960 unomiririra hwaro hwekutanga hweinjiniya mukubata mvura. Pakutanga wakashanda senzira huru yekuGerman yehukuru hwekuiswa uye maenvelopu ekushanda.zvisimbiso zvemakanikamumapombi epakati. Yakagadziriswa neDeutsches Institut für Normung (DIN), chiyero ichi chakagadzirwa kuti chienderane nemajiometri emabhokisi ekuisa pombi nezvisimbiso zvemakanika zvinokwana maari, zvichiita kuti pave nekubatanidzwa kunofungidzirwa pakati pemidziyo inotenderera nezvikamu zvekuvhara.

Kunyangwe yakatsiviwa nezvinodiwa zveEurope, DIN 24960 ichiri kusimbiswa zvakanyanya mumazita einjiniya yeindasitiri. Inotaura nezvemiganhu yenzvimbo iyo chisimbiso chinofanira kugara, ichivimbisa kuti zvisimbiso zvemakanika kubva kuvagadziri vakasiyana zvinogona kuchinjaniswa pasina kuda machining kana kugadziriswa kwepombi.

Makuriro, mhando dzezvisimbiso, uye maenvelopu ane mativi

Chinonyanya kukosha cheDIN 24960 ndechekutsanangura maenvelopu ane saizi yezvikamu zvezvisimbiso zvemakanika zvinoshanda kamwe chete, zvisina kuenzana, uye zvakaenzana. Inogadza zviyero zvakajairwa zvemukati mukati mekamuri rechisimbiso chepombi, ichitsanangura zvakananga dhayamita yepamusoro yechisimbiso, bhora rinodiwa rebhokisi rekuputira, uye nzvimbo yeaxial inodiwa kuti chitubu chidzvanyirwe zvakanaka. Standard inoronga hurefu hwezvisimbiso muzvikamu zvakatarwa, kunyanya L1K (hurefu hupfupi hwekushanda) uye L1N (hurefu hwekushanda hwakajairika). Nekutevedzera miganhu iyi yakasimba yevhoriyamu, vagadziri vemidziyo vanoona kuti zvisimbiso zvezvikamu zvakajairwa zvinoenderana zvakanaka mukati meimba yakatarwa.

Saizi dzemugodhi uye saizi yekuiswa

Chinhu chakakosha cheDIN 24960 ndechekufambira mberi kwayo kwakarongeka kwehukuru hweshaft, hunowanzova pakati pe10 mm kusvika 100 mm mukuwedzera kwakarongeka. Padhayamita yega yega yeshaft (d1), standard inotsanangura bhora rebhokisi rekuputira rinoenderana (d3), dhayamita yekunze yechigaro (d7), uye hurefu hwakakodzera hweaxial (L1K neL1N) hunodiwa pakuiswa. Izvi zvinogadzira matrix inofanotaurwa yeinjiniya pakugadzira mashaft epombi nemakamuri ekusimbisa.

Zvipingamupinyi izvi zvinoita kuti musoro wechisimbiso chinotenderera nechigaro chisingachinjiki zvirambe zvichichengetedza chiyero chakakodzera chekudzvanywa kana pombi yabatanidzwa zvizere. Izvi zvinodzivirira kupfekwa kwakanyanya kwechiso kubva mukudzvanywa kwakanyanya uye kubuda kwemvura nekuda kwesimba risingakwane rechitubu.

Izvo DIN 24960 isingatsanangure

Kunyange zvazvo DIN 24960 ichitaura zvakananga nezvenzvimbo, zvakakoshawo kunzwisisa zviri kunze kwenzvimbo yacho. Mutemo hautauri zvinhu zvekuvaka zviso zvechisimbiso, ma elastomers, kana simbi. Haunawo miganho chaiyo yekushanda, yakadai sekumanikidzwa kwakanyanya, miganho yekupisa, kana miganhu yekumhanya kweshaft, kunyangwe zvichienderana nePN16 (16 bar) pombi. Uyezve, DIN 24960 haitsanangure ma geometries echisimbiso chemukati. Vagadziri vakasununguka kushandisa masipiringi ega ega, masipiringi akawanda, kana masipiringi emafungu, chero bedzi musangano wacho wakakodzera mukati me envelopu yeL1K kana L1N yakajairwa.

Nei DIN 24960 Ichiri Kukosha?

Kunyangwe yakatsiviwa zviri pamutemo nemitemo yeEurope, zita rekuti DIN 24960 richiri kushandiswa zvakanyanya mukutenga, kugadzirisa, uye hunyanzvi hwezvivakwa. Kukosha kwaro kunogara kuripo kwakabatana nehukuru hwemidziyo yekare yakaiswa uye kuvimba kweketani yekugovera yepasi rose pachidimbu chedimensional chakagara chiripo uye chinonzwisiswa pasi rose.

Maitiro ayo anovandudza kuchinjana kwemari

Kukosha kukuru kweDIN 24960 kuri mukukwanisa kwayo kushandurana kwezvikamu zvisina musono. Mumafekitori anoshandisa mazana emapombi e centrifugal, kugadzika zvisimbiso zvinoenderana neDIN 24960 kunobvumiramadhipatimendi ekugadzirisakutsvaga zvinhu zvinotsiva kubva kuvatengesi vakawanda pasina kutya kusawirirana kwehukuru. Kuchinjana uku kunobudirira kushandisa zvisimbiso zvezvikamu zvakajairwa, zvichikurudzira mitengo inokwikwidzana uye zvichideredza matambudziko ekutengesa. Zvivako zvinoshanduka kuita zviyero zveDIN zvakajairwa zvinowanzo taura kudzikira kweSKU dzezvisimbiso zvemakanika ne30% kusvika 40%, sezvo dhizaini yechisimbiso chimwe chete ichigona kushanda nemamodheru akawanda epombi mufekitori yese.

Kwachiri kutaurwa nezve mwero uyu

DIN 24960 ichiri kutaurwa zvakanyanya pamwe chete nepombi dzemakemikari dzakajairika, kunyanya ayo akavakirwa zvinoenderana neISO 2858 neDIN 24256. Mapombi aya, akagadzirirwa kumanikidzwa kwebhaa 16, ane makamuri ezvisimbiso akagadzirwa zvakananga kugamuchira zvisimbiso zveDIN 24960. Kunze kweEurope, vagadziri muAsia neAmerica vanowanzo shandisa "DIN standard" setsananguro yekushambadzira neinjiniya kuvimbisa vatengi kuti vanoenderana nemidziyo inotenderera yakagadzirwa nemetric. Nekuda kweizvozvo, madhirowa einjiniya, mapepa edata epombi, uye maOEM manuals pasi rese anoramba achitsanangura DIN 24960 kuti ave nechokwadi chekuti zvinoenderana nechimiro.

Kuenzaniswa kweDIN 24960 neEN 12756

Mukupera kwema1990, European Committee for Standardization (CEN) yakaunza EN 12756 kuti isanganise mwero wezvisimbiso zvemakanika munyika dzese dzemuEurope. Mwero uyu wakanyatsotora DIN 24960, zvichireva kuti zviviri izvi zvakabatana, kunyangwe paine musiyano mukushandiswa kwazvo uye mazita.

Kusiyana kukuru uye kufanana

EN 12756 ndiyo nzira yemazuva ano yekudzokorora DIN 24960 muEurope. Zviyero zvemuviri—kusanganisira kureba kwakakosha kweL1K neL1N, kuwedzera kweshaft yed1, uye dhayamita yechigaro ched7—zvinoramba zvakafanana pakati pemitemo miviri. Chisimbiso chakagadzirwa kuDIN 24960 chichakwana mugomba rakagadzirirwa EN 12756, uye zvinopesana.

Sei kutevedzera mitemo yezvikamu kusingaenderane zvizere

Kunyange zvazvo DIN 24960 neEN 12756 zvichivimbisa kuti chisimbiso chichakwana munzvimbo yakatarwa, kutevedzera miganhu hakurevi kuti chinoenderana nekushanda. Zvisimbiso zviviri zvinoenderana nemirairo kubva kuvagadziri vakasiyana zvinogona kunge zvine mwero wezvitubu zvakasiyana, seti dzekumanikidza dze elastomer, kana miganhu yePressure-Velocity (PV). Semuenzaniso, chisimbiso chimwe chete chinoenderana neDIN chingashandisa musanganiswa wezvinhu zvine muganho wePV we20 MPa·m/s, nepo chimwe chichisvika 50 MPa·m/s. Kana timu yekutenga ikachinjana zvisimbiso izvi zvichibva pachiyero chayo chete, chisimbiso chine mwero wakaderera chinogona kukurumidza kuora kwekupisa uye kutadza kushanda zvakanaka kana chikaiswa mumvura ine viscosity yakawanda kana kumhanya kwakakwira kweshaft.

Nguva yekusarudza zvisimbiso zvakajairwa

Zvisimbiso zvakajairwa zvinoenderana neDIN 24960 kana EN 12756 ndiyo sarudzo yakanakisisa kune inosvika 80% yezvese zvinoshandiswa, kusanganisirakurapwa kwemvura, kutamiswa kwemakemikari kushoma, uye kugadziriswa kwemahydrocarbon ane simba shoma. Mainjiniya anofanirwa kudoma zvikamu izvi zvakajairwa kana mamiriro ekushanda ari mukati mezviyero zvine mwero (kazhinji pasi pe16 bar uye pasi pe150°C) uye uko kuderedza mutengo wese wekuva muridzi kuburikidza nekubatanidza zvinhu zviri mudura chiri chinangwa chikuru. Kusiyana neizvi, kune mvura dzine chepfu yakawanda, dzinogumbura, kana dzinopisa zvakanyanya, dzakagadzirwa nemaoko.zvisimbiso zvekaturijikazhinji zvinotsiva zvisimbiso zvezvikamu zvakajairwa.

Maitiro Ekushandisa DIN 24960 Mukutenga Nekugadzirisa

Kuwana nekuchengetedza zvisimbiso zvemakanika pasi pemutemo weDIN 24960 kunoda kudzora mhando zvakanyanya uye nzira dzekusimbisa dzakanyatsojeka. Nekuti mutemo uyu unongotaura zviyero chete, mutoro unowira painjiniya wekutenga nekugadzirisa kuti asimbise mhando yezvinhu uye kushivirira kwakakodzera kwekugadzira.

Maitiro ekusimbisa kutevedzera mitemo

Kusimbisa kutevedzera DIN 24960 kunosanganisira kuongorora kwakasimba kwezvikamu mushure mekugamuchira zvikamu. Vagadziri vekugadzirisa vanofanirwa kushandisa ma micrometer nema caliper akagadziriswa kuti vayere zviyero zvakakosha: dhayamita yemukati yegungano rinotenderera, dhayamita yekunze yechigaro chisina kumanikidzwa (d7), uye kureba kweaxial kusina kumanikidzwa. Zviyero izvi zvinofanirwa kuverengerwa zvichienderana nekubvumidzwa kwechiyero. Pamusoro pezvo, kusimbisa kureba kwakakodzera kwekuisa (L1K kana L1N) panguva yekubatanidza kwakakosha. Vagadziri vanowanzo nyora shaft kuti ive nechokwadi chekuti chisimbiso chakamanikidzwa kusvika pa milimita chaiyo yakatarwa nechiyero, kudzivirira zvikanganiso zvinotyisa zvekuisa zvinhu pameso.

Njodzi dzinowanikwa nevanhu vakawanda uye dzemhando yepamusoro

Njodzi inonyanya kuwanikwa neDIN 24960 seals ndeyekuuya kwemasero emhando yepamusoro asingadhuri uye asingatevedzere mitemo. Kunyange zvazvo ma "seals" aya angangoenderana nehukuru hwe "macro-dimensions" hwe "standard", anowanzo tambura nekusashivirira zvakanaka kwe "micro-tolerances". Kusamira zvakanaka kwechiso ndicho chikonzero chikuru chekubuda kwemvura; zviso zve "seal" zvemhando yepamusoro zvinofanirwa kunge zvakasungirirwa kusvika pa "flatness" ye "2 to 3 helium light bands" (inenge 0.6 kusvika 0.9 µm). Uyezve, ma "elastomers" enhema kana emhando yepasi anogona kuratidza kuomarara kweShore, zvichikonzera kubuda kwe "extrusion" pasi pekumanikidzwa kana kutadza kupa "secondary seal" yakakwana. Kutenga kunofanirwa kuongorora vatengesi kuti vaone kuti metallurgy nema "elastomers" zvinoenderana nezvinodiwa nemakemikari zve "pomped fluid".

Magwaro anodiwa uye zvinotenderwa

Kuti kuderedze njodzi dzekushanda, maodha ekutenga eDIN 24960 seals anofanira kuraira magwaro chaiwo, anosanganisira EN 10204 3.1 material test certificates yezvikamu zvesimbi uye batch traceability ye elastomers. Standard iyi inoenderana nekukwanisa kwakasimba kwe machining tolerances mukati me pombi housing pachayo. Bore re stuffing box rinowanzoda H8 tolerance, nepo pombi shaft inofanira kugadzirwa kusvika h6 kana h8 tolerance. Uyezve, pamusoro pe shaft panogara dynamic O-ring panofanira kuchengetedzwa pa roughness yepamusoro yeRa 1.6 µm kudzivirira abrasive pa elastomer panguva yekufamba kwe microscopic axial.

Maitiro Ekusarudza Nguva Yekushandisa DIN 24960

Kusarudza kana uchida kutsanangura chisimbiso cheDIN 24960 kana kusarudza chisimbiso chekaturiji chakagadzirwa neinjiniya chisarudzo chakakosha chinokanganisa kuvimbika kwenzvimbo uye bhajeti yekugadzirisa. Sarudzo iyi inofanira kuyera mitengo yekutanga, kuoma kwekuisa, uye kugadzikana kwekushanda kwenguva refu.

Maitiro ekusarudza einjiniya nekutenga

Mapombi einjiniya nekutenga zvinhu anofanira kuongorora mamiriro chaiwo emvura uye nharaunda yepombi. Zvisimbiso zvisina kuenzana zveDIN 24960 zvinowanzo ganhurira kumanikidzwa kuri pasi pe16 bar, nepo shanduro dzakaenzana dzinoenderana nemaenvelopu akafanana dzinogona kushanda kusvika ku25 bar. Miganhu yekupisa inonyanya kutemwa nema elastomers akasarudzwa, anowanzo tangira pa -20°C kusvika 200°C kune compounds dzakajairwa dzeFKM kana EPDM. Kana kushandiswa kukapfuura miganho iyi, kana kuti mvura yacho iri hazardous volatile organic compound (VOC) inoda kutevedzera API 682 uye dual-seal arrangements, zvisimbiso zveDIN 24960 component zvakajairwa hazvina kukwana, uye masisitimu akasimba, akasarudzika e sealing anofanira kuiswa.

Maitiro ekuenzanisa kurongeka, zvinhu zviri mudura, uye mashandiro azvo

Kuenzanisa mwero wekushanda kunoda ongororo yeTotal Cost of Ownership (TCO). Zvisimbiso zveDIN 24960 zvinowanzodhura zvishoma ne40% kusvika 60% pakutanga pane zvisimbiso zvekaturiji zvakambounganidzwa. Zvisinei, zvisimbiso zvezvikamu zvinoda kubatwa nekungwarira uye vashandi vane hunyanzvi kuti vaise nemazvo, uye kuiswa kwakajairika kunotora maawa maviri kusvika mana kuti kuve nechokwadi chekuti nguva yekushanda yagadziriswa zvakanaka uye kudzivirira kusvibiswa kwechiso yasvika. Zvivako zvine vadzidzisi vakadzidziswa zvakanyanya.vashandi vekugadzirisauye mutemo wekuti mari yezvinhu zvichengetedzwe yakaderera zvichabatsira zvikuru nekuisa zvinhu muchimiro cheDIN 24960. Kusiyana neizvi, makambani anotambura nekuchinja kukuru kwezvinhu kana ayo anonyanya kukoshesa kugadzirisa zvinhu nekukurumidza (MTTR) anogona kuona kuti mutengo wepamusoro wekutanga wezvisimbiso zvema cartridge unoderedzwa nekuiswa kwavo kwe plug-and-play, zvichiita kuti miganhu yeDIN 24960 isakoshe zvakanyanya kune yavo chaiyo operating model.

Zvinhu Zvinokosha Zvaunofanira Kuziva

• Mhedziso dzakakosha uye zvikonzero zveDIN 24960 Mechanical Seal Standard
• Magadzirirwo, kutevedzera mitemo, uye kuongororwa kwenjodzi zvinofanirwa kuongororwa usati waita chibvumirano
• Matanho anotevera anoshanda uye mazano anogona kushandiswa nevaverengi ipapo ipapo

Mibvunzo Inowanzo bvunzwa

Chii chinoitwa neDIN 24960 pakugadzirisa zvisimbiso zvemakanika?

Inoita kuti zvivharo zvienzane uye urefu hwekushanda kwemakamuri ezvivharo zvepombi hukwane, saka zvivharo zvinogona kukodzerana pasina kugadzirisa imba yepombi.

Ko DIN 24960 inotsanangura here zvinhu zvechisimbiso kana miganhu yekumanikidzwa?

Kwete. Inonyanya kufukidza saizi, kwete zvinhu zvechiso, elastomers, metallurgy, kana kumanikidzwa chaiko, tembiricha, uye kumhanya.

Chii chinonzi L1K neL1N muDIN 24960?

Hurefu hwakajairika hwekushanda: L1K ndiyo pfupiso, uye L1N ndiyo yakajairika. Kuenzanisa hurefu hwakakodzera kwakakosha kuti ukwane uye udzvanyirire zvakanaka.

Sei DIN 24960 ichiri kukosha pakugadzirisa pombi?

Mapombi mazhinji ekare achiri kuashandisa. Kutevera DIN 24960 kunobatsira mapoka ekugadzirisa kutsiva zvisimbiso nekukurumidza uye kuderedza matambudziko ekushanda pamwe chete mumapombi akasiyana-siyana.

Victor Seals anogona here kupa zvisimbiso zvinotsiva zvinoenderana neDIN 24960?

Ehe. Victor Seals inopa zvisimbiso zvemakanika zvakajairwa uye zvinoenderana neOEM zvekugadzirisa pombi dzemaindasitiri, zvichibatsira vatengi kuenzanisa zvisimbiso zveDIN zvemashandisirwo akawanda epombi.