Nguva Yekusarudza Chisimbiso Chesimbi Chinoputika
Zvisimbiso zvesimbi zvinoshandisa michina yemagetsi zvinomiririra mhinduro yakakosha yeinjiniya yemidziyo inotenderera inoshanda kunze kwezvisimbiso zvetsika zve elastomer. Nekutsiva chisimbiso chechipiri chinoshanduka uye masprings akawanda e coil nesimbi ine simbi yakasungirirwa, zvisimbiso izvi zvinopa simba re spring rinodiwa uye muganhu we sealing we hermetic secondary. Iyi hunyanzvi hwekugadzira hunochinja zvakanyanya miganhu yekushanda kwepombi, zvichibvumira kushanda nguva dzose munzvimbo dzinogona kukurumidza kuderedza mashandiro e sealing.
Tembiricha, Kumanikidzwa, uye Kumhanya kweMugodhi
Mainjiniya anowanzo shandura kuita simbi kana ma process parameters achipfuura miganhu yakachengeteka yekushanda ye O-rings yakajairwa. Chisimbiso chesimbi che single-ply chinosungirirwa pamucheto chimwe chete chinobata zvakanaka tembiricha yekushanda inotangira pa -75°C kusvika 400°C (-100°F kusvika 750°F), ichipfuura zvakanyanya miganhu yekupisa ye 150°C kusvika 200°C ye Viton kana Kalrez elastomers. Mukushandiswa kwe cryogenic kubata magasi akanyungudutswa, chimiro chesimbi chinochengetedza kuchinjika kwacho uko rabha inogona kuputsika nekupwanyika.
Kugona kudzvanya kwakasimba zvakaenzana. Kunyange hazvo mabhero akajairwa emucheto-welded achishanda zvakavimbika kusvika kumabhara makumi maviri (290 psi), mabhero akagadzirwa nemulti-ply kana hydroformed anogona kutsungirira kudzvanya kunodarika mabhara makumi matanhatu nepfumbamwe (1,000 psi). Uyezve, maseal aya anochengetedza kutarisisa kumeso kwakasimba pakumhanya kweshaft surface kusvika pamamita makumi maviri nemashanu pasekondi (5,000 feet paminiti), zvichiita kuti akwanise kushandiswa zvakanyanya.pombi dze centrifugal dzinomhanya zvikurumukuda zvakanyanyamaitiro emaindasitiri.
Kuenderana Kwemakemikari, Zvinhu Zvakaoma, uye Kuchena
Hunhu hwechisimbiso chechipiri mukugadzirwa kwebellows hunogadzirisa dambudziko rekurembera kwe elastomer—nzira yekutanga yekukundikana mu pusher seals uko O-ring inonamatira kushaft nekuda kwekuora kwemakemikari kana kusvibiswa kwenzvimbo. Izvi zvinoita kuti simbi mbellows dzinyatsokodzera mvura dzine makemikari akasimba, kusanganisira maasidhi akasimba, zvinonyungudutsa, uye mhinduro dzinorwisa organic compounds.
Paunenge uchibata netunhu twakazara kana slurry dzine huremu hunosvika 10% yetunhu twakasimba, magadzirirwo etunhu twakatenderedza anoshandisa simba re centrifugal kuti arambe achikanda tunhu twacho kure netunhu twakatenderedza, zvichidzivirira kuvharika. Zvisinei, kuchena kwakasimba panguva yekutanga kwesystem kunodiwa. Chero marara esimbi kana pombi dzakavharirwa pakati pemapepa etunhu twakatenderedza panguva yekutanga zvinogona kudzikamisa kufamba kweaxial, kukonzera kushushikana munzvimbo, uye kukonzera kutadza kuneta nguva isati yakwana.
Mashandiro anoita Chisimbiso cheMechanical Bellows cheMechanical Bellows
Maitiro esimbi ine bellows seal anoshandura zvakanyanya mashandiro anoita face loading uye hydraulic balancing mupombi stuffing box. Kusiyana ne pusher seals dzinoshandisa discrete coil springs, continuous bellows unit inogovera spring load zvakaenzana pakati pe360 degrees yechisimbiso, zvichiita kuti fluid film ishande zvakanaka pakati pezvinhu zvinotenderera uye zvisingachinji.
Kushanda Kuchienzaniswa Nezvisimbiso Zvekusundidzira
Kutakura kwakafanana uku kunokanganisa zvakananga kugadzikana kwechisikirwo kwezviso zvechisimbiso pasi pemamiriro akasiyana-siyana e hydraulic. Kubviswa kwe sliding elastomer ndiyo inonyanya kusiyanisa pakuongorora mashandiro.
| Chinhu | Chisimbiso cheMichina chePusher | Chisimbiso cheMichina cheSimbi cheMvuto |
|---|---|---|
| Chinhu Chechipiri Chekuvhara | Dynamic Elastomer (O-ring) | Mvuto dzesimbi dzisingachinji |
| Njodzi Inotyisa yeMugodhi | Yakakwira (nekuda kwekutsvedza kweO-ring) | Yakabviswa (hapana zvikamu zvinotsvedza pamugodhi) |
| Muganho wekupisa | ~200°C (Inoenderana neElastomer) | Kusvika 425°C+ (zvinoenderana nesimbi) |
| Kuvharika kweKubatwa | Yakakwirira (matsime uye mukaha weO-ring) | Yakaderera (inotenderera inozvichenesa) |
Nekubvisa O-ring inoshanduka, chisimbiso chebellows chinobvisa shaft fretting. Fretting inoitika kana kufamba-famba kwe elastomer kuchibaya pombi nekufamba kwenguva, zvichiita kuti shaft itsiviwe inodhura uye nzira dzinoramba dzichibuda pasi pechisimbiso.
Kubuda kwemvura, Torque, uye Kuvimbika
Kuenzanisa kwe hydraulic kwakakosha pakugadzirwa kwe simbi dzakasungirirwa pamucheto, dzinowanikwa nekuisa dhayamita inoshanda ye nhunzi maererano nechiso chechisimbiso. Iyi chiyero chekuenzanisa chakagadziriswa (chinowanzo gadzirwa pakati pe 0.65 ne 0.80) chinoderedza kugadzirwa kwekupisa nekukasira, zvichideredza zvakanyanya mwero wekubuda kwemvura kusvika padanho risingaonekwe pasi pekushanda kwakajairika.
Kutumirwa kwetorque kunobatwa zvakananga kuburikidza nepakati pebellows kana kuburikidza ne specialized drive lugs mukushandiswa kwakasimba kwe pressure, zvichiita kuti startup torque isamonere kana kuchekerera mapepa esimbi. Mukushandiswa kwe refinery inodziya zvakanyanya, kutsiva pusher seal inokundikana nechisimbiso chesimbi chakanyatsotsanangurwa chinowanzo wedzera Mean Time Between Failures (MTBF) kubva pamwedzi 8 kusvika 12 isina kunaka kusvika kumwedzi inopfuura 36, zvichipa kuwedzera kukuru mukuvimbika kwemidziyo yese.
Mamiriro Ekushanda Anopa Rubatsiro Pakushandiswa Kwayo
Kusarudza chisimbiso chesimbi chinovhara mvura kazhinji hachisi chinhu chinosarudzwa pakushandisa mvura isina njodzi nekuda kwemutengo wayo wekutanga wakakwira. Asi, igadziriso yehunyanzvi inoshandiswa kana nzvimbo dzakasiyana dzekushanda dzisina kunaka dzichiita kuti zvisimbiso zve pusher zvisashande zvakanaka pakugadzira kana pakugadzira mishonga.
Tembiricha Yakakwira Neyakaderera, Kupisa Vacuum, uye Mafuta Asina Kunaka
Kupisa kwakanyanya ndiko kunonyanya kukonzera kuti pave nechiedza chakakwana. Mukushandiswa kwe cryogenic kunobata nitrogen yemvura kana LNG patembiricha inosvika -196°C (-320°F), ma elastomers anokundikana pakarepo. Kusiyana neizvi, mumasystem ekupisa kana pasi pefekitori anoshanda nguva dzose pa350°C kusvika 425°C, ma organic elastomers anonyunguduka kana kuita carbonize. Ma simbi anochengetedza mwero wawo chaiwo wechitubu uye kusimbaradza kwese kwekupisa.
Uyezve, mukushandisa vacuum kudhonza kusvika pa 0.1 bar absolute, kana masisitimu ane dambudziko rekushanda zvakaoma nguva nenguva uye mafuta asina kunaka, kuzara kwakakodzera kwebellows kunobatsira kuchengetedza firimu remvura yakakosha. Izvi zvinodzivirira kukuvara kumeso uye kuputika kwekupisa kunowanzoitika kana pusher seal yarasikirwa nechinodzivirira mafuta.
Mvura Inoparadza, Njodzi yeCoking, uye Kufamba kweMugodhi
Mvura inonyungudika kana kuti coke kana yasangana nekupisa kwemumhepo—senge mahydrocarbon anorema, asphalt, uye pasi pemafuta asina kucheneswa—inokonzera njodzi huru kune zvisimbiso zvakajairwa. Sezvo mvura iyi ichidonhera pasi pechisimbiso ichidzika nepachiso chekabhoni uye ichitonhora, inoumba carbon deposits yakasimba. Muchisimbiso chekusundidzira, coking iyi inodzivisa kufamba kweO-ring inoshanduka, zvichikonzera kutadza kushanda kwechisimbiso ipapo ipapo. Chisimbiso chesimbi chinotsvedza, chisina ma elastomers echipiri anotsvedza, chinoramba chichitevera chiso chechisimbiso kunyangwe coking iri pakati nepakati ikaitika kudivi remumhepo.
Pamusoro pezvo, maburi anogona kugamuchira kufamba kwakakura kweaxial shaft—kazhinji kusvika +/- 2.0 mm—kunokonzerwa nekuwedzera kwekupisa kwepombi shaft mumasevhisi ekupisa kwakanyanya. Inotora kuchinja uku kwehukuru kuburikidza nekukotama kwemadziro akasungirirwa pasina kukanganisa gap rekuvhara kana kukuvadza shaft sleeve.
Miganhu, Maitiro Ekukundikana, uye Kuchinjana
Pasinei nekugona kwazvo, zvisimbiso zvesimbi zvine miganhu yakasiyana yekushanda uye zvinogona kuchinjaniswa. Nzira huru yekukundikana ndeyekuchekwa kwe torsional; kana chisimbiso chikabatana pamwe chete nekuda kwekuita kwekristaro kwechigadzirwa panguva yekudzima kwepombi, simba rekutenderera panotanga rinogona kubvarura ipapo ipapo zvisimbiso zvakasungirirwa.
Pamusoro pezvo, mapepa matete esimbi (anowanzova 0.10 mm kusvika 0.15 mm ukobvu) anogona kunyanya kuneta nekuda kwekuzunguzika kwemidziyo. Kuzunguzika kunodarika 4.5 mm/s RMS kunogona kukonzera harmonic resonance, zvichikonzera kupwanyika kweweld nekukurumidza. Pakupedzisira, mari inoshandiswa mumari inyaya yakakosha, nesimbi dzakasungirirwa mumucheto dzinoda mari yepremium ye1.5x kusvika 3.0x kupfuura standard pusher seals, zvichireva kuti panofanira kuva nechikonzero chakajeka chekudzoka kwemari zvichienderana nenguva yakareba yekushanda.
Maitiro Ekusarudza uye Kuisa Chisimbiso Chesimbi CheBellows Mechanical
Kubudirira kwekushandisa chisimbiso chesimbi chinovhara simbi kunoenderana zvakanyanya nekushandiswa kwakanyatsogadzirwa kwezvinhu uye maitiro chaiwo ekuisa. Nekuti zvisimbiso izvi zvakagadzirwa kuti zvishande zvakanyanya, simbi dzisina kunaka kana kuti kusarongeka zvakanaka kwemuchina zvinokurumidza kubvisa zvakanakira kushanda kwazvo.
Simbi, Zvishandiso zveChiso, uye Kugadzika kweSisimbiso
Simbi yepakati pebellows inofanira kuenzaniswa zvakanaka nemvura inoshandiswa. Simbi isingatsvi yeAM350 ndiyo inowanzo shandiswa pakupisa kwakanyanya, ichipa kugona kuchinjika kwakanaka uye kuramba kuneta. Kune nharaunda dzine chloride kana gasi rinopisa zvakanyanya (H2S), mainjiniya anovandudza kuita Alloy C-276 (Hastelloy) kana Alloy 718 (Inconel), iyo inopa kudzivirira kwakanyanya kukuvara nekupwanyika kwegomba.
Kusanganiswa kwechisimbiso kunowanzo batanidza mhete yeSilicon Carbide (SiC) isingachinji ichipesana nemhete yeCarbon Graphite inotenderera ine density yepamusoro kuti inyatsogadzirwa. Zvisinei, mabasa anokwesha zvakanyanya angada kubatana kwakasimba seSiC vs. Tungsten Carbide (TC). Magadzirirwo acho anotemerwa nemaitiro eAPI 682, neArrangement 1 (single seal) inoshandiswa kune zvinwiwa zvinopisa zvakanyanya, uye Arrangement 2 kana 3 (dual unpressurized kana pressurized seals) inorayirwa kune zvine njodzi kana zvinoputika organic compounds (VOCs).
Kuisa, Kurongeka, Kutanga, uye Kutarisa
Magadzirirwo echisimbiso chekatrijiZvave zvave mwero weindasitiri, zvichibatanidza mbeva, zviso, uye gland plate muchikamu chimwe chete, chakagadziriswa kare chinobvisa kudiwa kwekuyera kwekushandisa nemaoko pa pump shaft. Panguva yekuisa, kumhanya kwe pump shaft kunofanirwa kuongororwa zvakasimba; total indicator reading (TIR) haifanirwe kudarika 0.05 mm (0.002 inches) kudzivirira kutenderera kwakanyanya uye kusina kuenzana kwe bellows convolutions.
Maitiro ekutanga ekushandisa tembiricha yepamusoro anoda kuti pave nechikamu chekupisa chinodzorwa, kazhinji uchishandisa API Plan 32 external flush kana API Plan 62 steam quench. Pombi casing uye seal chamber zvinofanirwa kudziiswa nechiyero chepamusoro che50°C paawa kudzivirira kupisa kunopisa kumeso esilicon carbide asina kusimba. Kuramba uchitarisa tembiricha yeflush uye seal chamber pressure kwakakosha kuve nechokwadi chekuti mvura inoramba iri pasi pe15°C pasi pesimba rayo reutsi, zvichidzivirira kupenya uye kuoma kwemvura panzvimbo dzeseal.
Hurongwa hweSarudzo dzeSarudzo yeChisimbiso
Kuchinja kuita chisimbiso chesimbi chinobata simbi kunoda kuongororwa kwakarongeka kwemamiriro ezvinhu ekushanda, nhoroondo yekukundikana, uye mari yese yehupenyu. Hurongwa hwesarudzo hwakajairika hunobvumiramainjiniya ekuvimbika kwezvirimwakururamisa kushandiswa kwemari nenzira yakarurama nekuyera mutengo wekutanga wekutenga nekuchengetedza kwenguva refu kwekushanda.
Rondedzero Yekushandisa
Matrix inotevera inoshanda seyekutarisa kwekutanga kwekushandisa kuona kana chisimbiso chesimbi chebellows chiri mhinduro yehunyanzvi inodiwa kune imwe pombi system.
| Maitiro Ekuongorora | Kufunga Nezve Blowers Threshold | Chiito Chinokurudzirwa |
|---|---|---|
| Kupomba Tembiricha | > 200°C (392°F) kana < -40°C (-40°F) | Mabhero esimbi anorayirwa; taura AM350 kana Alloy 718. |
| Kugadzira Mvura / Kuisa Polima | Njodzi Iri Pakati Nepakati kusvika Yakanyanya | Taura maburi anotenderera uchishandisa API Plan 62 quench. |
| Nhoroondo yeKutsvaga Mugodhi | > Kutsiva shaft sleeve imwe pagore | Simudzira kuita bellows kuti ubvise dynamic elastomer. |
| Kuisa pfungwa pazvikamu | 2% kusvika 10% nehuremu | Taura maburi anotenderera; dzivisa maburi asingachinji. |
Kana paine chimwe chinhu chiri muchirongwa ichi chikazadzikiswa, zvipingamupinyi zvekugadzirwa kwechisimbiso che pusher zvinogona kukonzera kukundikana nekukurumidza, zvichiita kuti dhizaini ye bellow ive sarudzo yakanaka yehunyanzvi uye yemari.
Njodzi, Kutevedzera Mutemo, Nguva Yekushanda, uye Mutengo Wekutsiva
Kupfuura zvinodiwa nehunyanzvi, sarudzo iyi inofanira kusanganisira kuderedza njodzi, kutevedzera mitemo yezvakatipoteredza, uye nguva yekushanda kwemiti. Munzvimbo dzinotongwa nemitemo yakasimba yezvakatipoteredza, zvisimbiso zvesimbi zvine simbi dzakasungirirwa zvine mupendero zvinoita basa rakakosha mukuderedza kusvibiswa kwemhepo, zvichichengetedza mwero wekubuda kwemvura inoputika (VOC) pasi pemuganho wakasimba we500 ppm wakatsanangurwa neEPA nemasangano epasi rose akaenzana.
Kunyange zvazvo mutengo wekutanga wekaturiji yebellows ungabva pamadhora zviuru zviviri nemazana mashanu kusvika zviuru zvisere zvichienderana nesimbi uye saizi yemugodhi, ongororo yemari inofanira kutarisisa mutengo wenguva yekuzorora isingadzivisike. Mumaindasitiri anoenderera mberi akadai sekuchenesa peturu kanakugadziriswa kwemafuta, kukundikana kwepombi kamwe chete kunogona kukonzera kudzimwa kwemari yekugadzira inodarika $10,000 paawa. Nekubvisa kuora kwe elastomer, kudzivirira shaft fretting, uye kurarama nekupisa, metal bellows seal inoderedza zvakanyanya kuwanda kwekudonha kwepombi. Pakupedzisira, kana ikashandiswa munzvimbo dzakakodzera dzebasa rakawanda, mutengo wese wekuva muridzi (TCO) wechisimbiso chesimbi bellows wakaderera zvakanyanya pane we pusher seal mumakore mashanu ehupenyu.
Zvinhu Zvinokosha Zvaunofanira Kuziva
- Mhedziso dzakakosha uye chikonzero cheMetal Bellow Mechanical Seal
- Magadzirirwo, kutevedzera mitemo, uye kuongororwa kwenjodzi zvinofanirwa kuongororwa usati waita chibvumirano
- Matanho anotevera anoshanda uye mazano anogona kushandiswa nevaverengi ipapo ipapo
Mibvunzo Inowanzo bvunzwa
Ndirini pandinofanira kusarudza chisimbiso chesimbi chine simbi?
Ishandise kana pombi dzichitarisana nekupisa kwakanyanya, makemikari anotyisa, kumhanya kwakanyanya kweshaft, kana kana elastomer O-rings ikatadza kushanda nekuda kwekurembera kana kupwanyika.
Chisimbiso chesimbi chinogona kubata tembiricha yakaita sei?
Magadzirirwo akajairika ane ply imwe chete anochinjika pamucheto anobata anenge -75°C kusvika 400°C, zvichiita kuti akwanise kushandiswa pabasa re cryogenic uye rinopisa zvakanyanya.
Zvisimbiso zvesimbi zviri nani here pamapombi emakemikari uye e solvent?
Ehe. Chisimbiso chavo chesimbi chisingachinji chinodzivirira kurwiswa kwe elastomer, saka vanoshanda zvakanaka muacids, solvents, uye caustic services.
Zvisimbiso zvesimbi zvinopinda musimbi zvinogona kufamba mumidziyo ine matope kana ine zvinhu zvakasimba here?
Ehe, kunyanya magadzirirwo emadziro anotenderera emidziyo ine zvinhu zvakasimba zvinosvika 10%, asi kusukira kwemagetsi kunofanira kubvisa marara esimbi uye chikero chepaipi.
Ko Victor Seals anogona kupa zvisimbiso zvesimbi zvinotsiva zvemhando dzepombi dzeOEM here?
Ehe. Victor Seals inopa zvisimbiso zvinoenderana neOEM uye zvinotsiva zvigadzirwa zvemhando dzakadai seIMO, Alfa Laval, Grundfos, APV, Flygt, Fristam, Lowara, naAllweiler.
Nguva yekutumira: Chikumi-09-2026