Sei Zvisimbiso zveMagetsi eMarara Zvichikundikana muMasisitimu eMarara?

Sei Zvisimbiso zveMagetsi ePombi yeMarara Zvichikosha?

Nzvimbo dzekuchenesa mvura yakasviba dzinoshanda nguva dzose, zvichikonzera kushushikana kukuru pakushanda kwemidziyo inotenderera. Pakati pezvivakwa izvi, tsvina yetsvinapombi zvisimbiso zvemakanikainoshanda sechipingamupinyi chikuru pakati pemvura dzakasvibiswa zvakanyanya uye nharaunda yekunze. Nzira yakasimba yekuvhara haisi nyaya yechikamu chimwe chete; inotungamira kuvimbika, kutevedzera mitemo, uye mari inoshandiswa pakushanda kwenzvimbo yese. Masisitimu emvura yakasviba emaguta nemaindasitiri emazuva ano anowanzoisa mapombi aya pasi pekumanikidzwa kwekushanda kubva pa50 kusvika ku150 PSI, zvisimbiso zvinoda simba zvinogona kutsungirira kushanduka-shanduka kwesimba uye kusangana nemakemikari zvakanyanya.

Zvinoitwa nemakanika seal mumapombi etsvina

Zvisimbiso zvemakanika mumapombi etsvina zvinoita basa guru rekuisa mvura yakamanikidzwa mukati mepombi uku zvichibvumira mubato kuti utenderere zvakasununguka. Kusiyana nekurongedza kwetsika dzegland, izvo zvinoda mwero wekubuda kwemvura wakarongwa kuti urove mubato, zvisimbiso zvemakanika zvinoshandisa mativi maviri akatsetseka akagadzirwa zvakanaka—rimwe risina kumira uye rimwe richitenderera. Zviso izvi zvinodzvinyirirwa pamwe chete nematsime emakanika kana maburiuye dzinongoparadzaniswa nefirimu remvura rinobva mu microscopic fluid, rinowanzova pakati pe1 ne3 microns muukobvu. Iyi firimu ye hydrodynamic inopa mafuta akakosha uye kutonhora kumeso echisimbiso uku ichideredza kubuda kwe process media kusvika padanho risingaonekwe. Kunyatso shandiswa kunoita kuti chisimbiso chemuchina chigone kudzikamisa shaft deflections diki uye kufamba kwe axial pasina kukanganisa muganhu wekumanikidzwa.

Sei kutadza kwechisimbiso kuchikanganisa masisitimu emvura yakasviba

Kana chisimbiso chemuchina chikakundikana, mhedzisiro yacho inokurumidza kupararira muhurongwa hwemvura yakasviba. Migumisiro yacho inosanganisira kubuda kwetsvina isina kugadziriswa kana kuti isina kugadziriswa zvishoma mupombi, zvichikonzera njodzi huru yebio uye kusvibiswa kwezvakatipoteredza. Zvichienderana nehukuru hwenzvimbo iyi, mhedzisiro yemari inogona kuva inoshamisa; nguva isina kurongwa yekushanda muchiteshi chikuru chemasisitimu emuguta inogona kukonzera mari inotangira pamadhora zviuru zvishanu kusvika zviuru makumi maviri paawa kana paine emergency bypass pombi, vashandi, uye kuchenesa. Uyezve, masangano anotonga anosimbisa mitemo yekudzivirira, zvichireva kuti kudonha kusina kuderedzwa kunokonzerwa nekukundikana kwechisimbiso kunowanzo kukonzera faindi dzakaoma dzezvakatipoteredza. Kunze kwekudonha kwacho pakarepo, mvura inobuda mukamuri rechisimbiso inowanzopinda mudzimba dzemabheyaringi epombi, zvichikonzera kutadza kwemabheyaringi, kukuvara kwemota, uye nguva yekugadzirisa yakareba zvakanyanya.

Zvikonzero Zvinowanzoita Kuti Pombi Yemvura Yakasviba Isashande

Nzvimbo yemvura yakasviba inovenga zvinhu zvakagadzirwa nemakanika. Mapombi etsvina ane basa rekutakura mvura inofamba inosiyana-siyana mukugadzirwa kwayo, kazhinji ine huwandu husingafungidzike hwezvinhu zvinogumbura, zvinhu zvine fibrous, uye makemikari anoparadza. Kunzwisisa nzira dzekukundikana dzine chekuita nenzvimbo iyi yakaoma ndiyo nhanho yekutanga yekushandisa nzira dzinoshanda dzekuderedza dambudziko uye kuwedzera hupenyu hwemidziyo.

Zvinhu zvakasimba, fibers, grit, uye abrasive slurry

Kuvapo kwezvinhu zvakasimba, fibers, grit, uye abrasive slurry ndizvo zvinonyanya kukonzera njodzi huruzvisimbiso zvemakanika mukushandiswa kwetsvina yetsvina. Tsvina yemvura yakasviba inogona kuva nezvinhu zvakasimba kusvika 8% kusvika 10% nehuremu, yakazara ne grit yakagadzirwa ne silica inoshanda se compound yekukuya pazviso zve seal. Kana zvidimbu zvakakura kupfuura 1-to-3-micron fluid film gap zvikapinda mu interface, zvinokonzera kupera kwakanyanya, kukora, uye radial grooving pazviso zve seal. Zvinhu zve fibrous, zvinowanzonzi "ragging," zvinokonzera njodzi yechipiri nekuputira zvikamu zve seal zvinotenderera. Kubatanidzwa uku kunogona kudzikamisa kufamba kwe springs kana bellows, kudzivirira zviso zve seal kuti zvisarambe zvichidzvinyirirwa zvakanaka uye zvichikonzera kubuda kwemvura nekukurumidza, kusingadzoreki.

Kushanda nesimba, mafuta asina kunaka, uye kupisa kwakanyanya

Zvisimbiso zvemakanika zvinoshandisa firimu remvura rakagadzikana kuti zvizore uye zviparadze kupisa. Kushanda nesimba kunoitika kana pombi ikarasikirwa neprime, ichishanda pavharuvhu yekuburitsa yakavharwa, kana ikasangana nemhepo yakawandisa, zvichiita kuti firimu remvura ripere. Pasina kunyorovesa uku, coefficient yekukweshana pakati pechisimbiso inotarisana nekukwira, zvichigadzira kupisa kwakanyanya munzvimbo. Tembiricha pachikamu chechisimbiso inogona kukurumidza kupfuura 400°F (204°C) mumamiriro ezvinhu akaoma. Kuwanda kwekupisa uku kunokonzera kuvhunduka kwekupisa—kunyanya muzvinhu zvisina kusimba zvakaita seceramic kana silicon carbide—zvichikonzera kupwanyika kwestress microscopic kunozivikanwa sekutarisa kupisa. Pamusoro pezvo, kugara kwenguva refu uchisangana nekupisa uku kwakakwirira kunokurumidza kukanganisa zvikamu zvechipiri zve elastomeric, zvakaita seO-rings, zvichiita kuti zviome, zvitsemuke, uye zvirasikirwe nekugona kwazvo kuvharwa.

Kusarongeka zvakanaka, kudedera, uye kumanikidzwa kunonoka

Zvisimbiso zvemakanika zvinoda mamiriro chaiwo ekushanda kuti zvishande nemazvo; kutsauka pakurongeka kweshaft kana kumanikidzwa kwesystem kunogona kukanganisa zvakanyanya kusimba kwechisimbiso. Kudengenyeka kwakanyanya, kunowanzokonzerwa nekusawirirana kweimpeller, kupera kwemabheyaringi, kana kushanda kunze kwePreferred Operating Region (POR) yepombi, kunomanikidza zviso zvechisimbiso kuvhurika nekuvharika nekukurumidza. Mitemo yeindasitiri inorayira kuti kumhanya kweshaft hakufanirwe kudarika 0.002 inches (0.05 mm) pachiso chechisimbiso; kudarika chiyero ichi kunokurumidza kupera pamapini ekutyaira nezvinhu zvinochinjika. Zvinodzvinyirira, zvakaita sehammer yemvura kana zviitiko zve cavitation zvakangoerekana zvaitika, zvinounza mafungu esimba mukamuri rechisimbiso. Kuchinja uku kunogona kudzosera shure kwekuchinjana kwesimba kwechinguvana pachisimbiso, zvichigona kubvisa zviso kana kubvisa maO-rings kubva mumigero yawo.

Maitiro Ekuenzanisa Zvisimbiso zveMechanical zveMapombi emvura Yakasviba

Kufamba neruzivo rwehunyanzvi rwezvisimbiso zvemakanika kunoda kunzwisisa kwakakwana mashandiro epombi uye hunhu hwayo hwenzvimbo yemvura yakasviba. Kusarudza dhizaini yakakodzera yechisimbiso, simbi, uye sisitimu yekutsigira kwakakosha pakuwedzera Nguva Yepakati Pakati Pekukundikana (MTBF) uye kuderedza mari yehupenyu hwese.

Zvisimbiso zveSingle, double, cartridge, uye sliced

Sarudzo pakati pemaseal ega, maviri, katuriji, uye akapatsanurwa inosarudza mwero wekushanda uye kuoma kwekugadzirisa pombi.Zvisimbiso zvemuchina chimwe cheteZvishandiso zvema "cartridge seals" zvinogara zvichishandiswa pakubuda kwemvura isina simba asi hazvipi rubatsiro kana paine dambudziko. Zvisimbiso zviviri (zviviri) zvinoshandisa maseti maviri ezviso ne "barrier fluid", zvichipa mukana wekudzivirira tsvina ine chepfu yakawanda kana kuti inokuvadza zvakanyanya. Zvisimbiso zvema "cartridge seals", zvinosanganisa zviso, ma "springs", uye "gland" kuita "unit" imwe chete, zvave tsika inoshandiswa muindasitiri yekugadzirisa mvura yakasviba; zvinobvisa kudiwa kwekuyera kwakanyatsojeka kwekuisa, zvichideredza kutadza kwekuisa kusvika ku30%. Zvisimbiso zvakapatsanurwa zvinoiswa pamapombi makuru akapatsanurwa kana akamiswa apo kuputsa michina kunodhura zvakanyanya, zvichibvumira kutsiviwa kwechisimbiso pasina kubvisa mota kana coupling.

Zviso zvechisimbiso, elastomers, uye simbi

Zvinhu zvakasarudzwa zvezvisimbiso uye ma elastomer echipiri zvinosarudza kuramba kwemakemikari uye kugara kwenguva refu kwemusanganiswa. Munzvimbo dzetsvina dzinopisa, Silicon Carbide (SiC) neTungsten Carbide (TC) ndidzo sarudzo dzinonyanya kunaka dzezvisimbiso. Silicon carbide ine kuoma kwakanyanya (kazhinji inosvika 2,500 Knoop) uye conductivity yakanaka yekupisa, zvichiita kuti irambe yakasimba pakusakara uye kupisa. Kune zvinhu zvechipiri zvinopisa, standard Nitrile (Buna-N) inowanzoora kana paine makemikari emuindasitiri akasanganiswa mumarara emuguta. Nekuda kweizvozvo, ma elastomer akagadziriswa akadai seFluorocarbon (Viton/FKM) kana Ethylene Propylene Diene Monomer (EPDM) anotsanangurwa, zvichienderana ne pH chaiyo uye huwandu hwe hydrocarbon hwemvura.

Dhizaini yekamuri rechisimbiso, mapurani ekukwesha, uye zvinwiwa zvinodzivirira

Nzvimbo yekamuri yekuvharira inofanira kutarisirwa zvakasimba kuti ive nechokwadi chekuti inogara kwenguva refu, izvo zvinoitwa kuburikidza nemapurani chaiwo ekushambira uye mvura inovhara mvura. Munzvimbo yetsvina yakasviba zvakanyanya, API Plan 32 inowanzo shandiswa, ichipinza mvura yakachena, yekunze inosvibira mukamuri yekuvharira kuti ikwidze kumanikidzwa uye kusundira mabrasives kure nezviso zvechisimbiso. Kune magadzirirwo maviri echisimbiso, API Plan 53A kana 54 inopa sisitimu yemvura inovhara mvura inodzvanywa. Kudzivirira mvura yakasviba kuti isapinde muzviso zvechisimbiso, mvura inovhara mvura inowanzo chengetwa padhigirii rekudzvanya re15 kusvika 30 PSI pamusoro pekumanikidzwa kwakanyanya kwekamuri yekupomba. Dhizaini yekamuri yekuvharira pachayo—inowanzo shandiswa maburi akakura kana akatetepa—inobatsira zvakanyanya mukuburitsa zvinhu zvakasimba mukati me centrifugal uye kupararira kwekupisa kwenzvimbo.

Maitiro Ekudzivirira Kukundikana Kwechisimbiso Chepombi Yetsvina

Kunyangwe chisimbiso chemuchina chakagadzirwa zvakanaka kwazvo chinokundikana nguva isati yakwana kana chikashandiswa zvisina kunaka, chisina kuiswa zvakanaka, kana kuti chikasagadziriswa zvakanaka. Kugadzira nzira dzakasimba uye dzakajairwa dzekuisa uye kutarisa mamiriro ezvinhu kwakakosha kuti uchinje kubva pakugadzirisa zvinhu kuenda pakuva netsika yekuvimbika.

Kuiswa, kurongeka, uye kudzora torque

Kunyatsoita basa panguva yekuisa hakugone kutaurwa. Makanika anofanira kuona kuti pombi yemugodhi nekamuri rekuvharira zvakacheneswa uye zvakaongororwa zvakanaka kuti hapana maburi kana mavanga. Kuongororwa kwehukuru kwakakosha; chiso chekamuri rekuvharira chinofanira kunge chakamira panzvimbo ine shaft axis mukati me 0.001 inches pa inch yedhayamita yemugodhi kudzivirira kukanganisa kwekona. Kudzora torque panguva yekusimbisa gland kwakakoshawo. Kusabatana kwekusimba kwe gland nuts kunogona kukanganisa chiso chemugodhi chisina kumira, zvichigadzira mipata midiki inobvumira kubuda kwemvura. Nyanzvi dzinofanira kushandisa ma torque wrench akagadziriswa uye kutevedzera nzira yakasimba yekusimbisa kuti ive nechokwadi chekudzvanywa kwakafanana kwe gland gasket uye kufanana kwakakwana kwezviso zvemugodhi.

Kuongorora, kuisa mafuta, kudedera, uye kudonha kwemvura

Kutarisa mamiriro ezvinhu nguva dzose kunoshanda senzira yekutanga yekudzivirira kubva mukukundikana kukuru. Vashandi vekugadzirisa vanofanirwa kuongorora zviratidzo zvekutanga zvekuchema kana kupera kwemvura inovhara madziro. Kuongorora kudedera, kutevedzera ISO 10816 standards, kunopa ruzivo runogona kushandiswa maererano nehutano hwemabheya, kuenzana kweimpeller, uye kutsauka kweshaft matambudziko aya asati aparadza chisimbiso nehunyanzvi. Kune masisitimu maviri ezvisimbiso ane matangi emvura inovhara madziro, kutarisa magauge ekumanikidza uye mwero wemvura kwakakosha; kudzikira kamwe kamwe kwedzvinyiriro yekudzivirira kana kuchinja kweruvara rwemvura kunowanzo ratidza kuputsika kwechisimbiso chemukati. Pamusoro pezvo, kuongororwa kwe thermographic kwegland yechisimbiso kunogona kuona kugadzirwa kwekupisa kusingawanzoonekwi kunoratidza kunyorovesa kwemukati kana kubatana kwechiso.

Kuongororwa kwezvikonzero zvekutadza kunowanzoitika

Kana chisimbiso chemuchina chikakundikana, kungochitsiva pasina kuongorora chikonzero chacho kunoratidza kuti chichakundikana zvakare. Kushandisa nzira yekuongorora root-cause (RCA) yakarongwa kunosanganisira kuongorora zvinhu zvakakundikana. Semuenzaniso, kana zviso zvechisimbiso zvikaratidza matumbu, RCA inogona kuratidza kuti mvura iri kupwa pakati pezviso, zvichiratidza kutonhora kusina kukwana kana kushanda kunze kwesimba rakatarwa. Kana madhiraivha akachekwa, ongororo yacho inotarisa pa start-up torque yakaoma kana mamiriro ekushanda akaomarara. Nekunyora zvinyoronyoro nzira dzekutadza, mamiriro ekushanda, uye magwaro ekuchengetedza, mainjiniya ekuvimbika anogona kuona matambudziko ehurongwa uye kusundira chiyero cheMean Time Between Failures (MTBF) kubva padanho re reactive 12-month cycle kuenda kumwedzi 36 inoenderera mberi kana kupfuura.

Maitiro Ekusarudza Nzira Yakakodzera Yekusimbisa Chisimbiso

Kugadzira hurongwa hwakazara hwekusimbisa hunopfuura zvinodiwa zvehunyanzvi; zvinoda nzira yakazara yekutarisira midziyo, kutenga, uye hupfumi hwehupenyu hwese. Vatariri vezvivakwa vanofanirwa kuyera zvipingamupinyi zvebhajeti nekukurumidza nezvinangwa zvekuvimbika kwenguva refu kuti vawedzere mutengo wese wekuva muridzi wezvivakwa zvavo zvekupomba.

Sarudzo dzekugadzirisa, kugadzirisa, kana kusimudzira

Vatariri vemidziyo vanowanzotarisana nesarudzo yekugadzirisa chikamu chakakundikana, kugadzirisa pombi neimwe mhando yechisimbiso, kana kusimudzira sisitimu yese yekuvharira. Nzira inozivikanwa nevakawanda muindasitiri inoti kana mutengo wekugadzirisa chisimbiso chemuchina uchipfuura 50% yemutengo wechinhu chitsva chinotsiva, kutenga yuniti itsva ndiyo sarudzo yakanaka yehupfumi. Zvisinei, kana pombi chaiyo ikasangana nekutadza kusingaperi—sekutsiva chisimbiso chechikamu mwedzi mitanhatu yega yega—kugadzirisa chisimbiso chekaturiji chakasimba kana sisitimu yechisimbiso chembiri ine hurongwa hwekudzora zvakatipoteredza kunodiwa. Kuvandudzwa kwakakosha zvikuru kana mamiriro ekushanda achichinja, senge kuwedzera kwezvisimbiso zvakamiswa zvachose (TSS) kana kuiswa kwetsvina yemakemikari inonyanyisa murwizi rwemvura yakasviba.

Kuenzanisa mutengo wekutenga nemutengo wehupenyu hwese

Kungotarisa chete pamutengo wekutanga wekutenga chisimbiso chemakanika chikanganiso chinowanzoitika pakutenga chinokwidza mari yekushanda kwenguva refu. Mutengo Wese weKuva Muridzi (TCO) unosanganisira mari yekutanga inoshandiswa, basa rekuisa, kushandiswa kwesimba, kugadzirisa mvura inovharira, uye, zvakakosha, mutengo wekushanda. Semuenzaniso, kutenga chisimbiso chechikamu chepakutanga nemadhora mazana mashanu kunogona kuita sekunge kwakabudirira zvichienzaniswa nechisimbiso chekatriji chemadhora chiuru nemazana mashanu. Zvisinei, kana chisimbiso chechikamu chichida kuyerwa chaiko nemaoko, zvichikonzera zvikanganiso zvekuisa kakawanda uye kurasikirwa nemadhora zviuru zvitatu panguva yekushanda uye basa rekukurumidzira pakukundikana, chisimbiso chekatriji chinopa mutengo wakaderera wehupenyu. Uyezve, magadzirirwo echiso chechisimbiso asingashandise simba anogona kuderedza kudhonzwa kwemota, zvichikonzera kuchengetedza kwemagetsi kunoyerwa mukati memakore gumi ekushanda.

Maitiro ekugadzirisa uye ekugadzirisa

Kuti zvive nechokwadi chekuti zvinhu zvinoshanda uye zvakavimbika, nzvimbo dzemvura yakasviba dzinofanira kuisa mitemo yakasimba uye yekutarisira zvinhu mungarava dzavo dzese. Kugadzirisa zvinhu kunoderedza kuoma kwezvinhu uye kuderedza mutoro wekudzidziswa kwevashandi vekugadzirisa. Mitemo inofanira kutsanangura zvakajeka zvinhu zvinogamuchirwa zvekuvaka, kumanikidzwa kunodiwa uye tembiricha, uye magwaro ekudzora hunhu kubva kumugadziri. Kune nzvimbo dzekusimudzira zvinhu dzemumaguta, mainjiniya vanowanzo tsanangura zvisimbiso zvinosangana kana kudarika zviyero zveAPI 682 Category 1 kana 2, zvichivimbisa kuti zvinhu zvakasimba. Mitemo yekuchengetedza inofanirawo kuraira kushandiswa kweZvikamu zvakabvumidzwa neOEMkugadzirisa uye kuronga nguva dzakaoma dzekutsiva mvura inovharika uye bvunzo dzekutanga dzekudedera, nokudaro zvichisimbisa nzira yekutarisira zvivakwa zvemvura yakasviba.

Zvinhu Zvinokosha Zvaunofanira Kuziva

• Sarudza zvisimbiso zvemakanika zvepombi yetsvina zvinogona kushanda nguva dzose, zvinhu zvakasimba zvinogumbura, kusangana nemakemikari, uye kumanikidzwa kunowanzova pakati pe50 kusvika 150 PSI.
• Dzivisa kuoma kwemvura nekuti zvisimbiso zvemakanika zvinoenderana nefirimu remvura rinozora re 1 kusvika 3 micron kuti ritonhore uye ridzore kupfeka.
• Deredza kuungana kwetsvina, machira, uye madhaka akakomberedza imba yekuvharira kuti udzivise kukwenya kumeso, kuvharika kwechitubu, uye kubuda kwemvura.
• Ongorora kubuda kweseal nekukasika nekuti mvura yakasviba inopinda mubearing housing inogona kukonzera kutadza kushanda kwebearing, kukuvara kwemota, uye nguva refu yekugadzirisa.
• Shandisa chisimbiso chinoenderana, elastomer, uye zvinhu zvechitubu kuti ugadzire mvura yakasviba kuti usaora, kuzvimba, uye kusashanda zvakanaka nguva isati yakwana.
• Tora kutadza kwechisimbiso chisina kurongwa senjodzi yehurongwa hwebasa nekuti kupomba, kuchenesa, uye kushanda zvinogona kudhura zviuru zvemadhora paawa.

Mibvunzo Inowanzo bvunzwa

Chii chinonyanya kukonzera kuti zvisimbiso zvemuchina wepombi yetsvina zvisashande zvakanaka?

Mavhu akaomarara, tsvina, uye zvinhu zvakasimba zvema fibrous ndizvo zvinonyanya kukonzera. Zvinokuvadza zviso zvechisimbiso, zvinovhara matsime, uye zvinokanganisa firimu remafuta matete rinodiwa kuti chisimbiso chigare chichitonhorera uye chisina kubuda mvura.

Zvisimbiso zvepombi yetsvina zvinowanzobata kumanikidzwa kwakadii?

Mapombi mazhinji emvura yakasviba emakanzuru nemaindasitiri anoshandisa simba rinenge 50 kusvika 150 PSI, saka ma seal anofanira kushivirira kushanduka-shanduka kwedzvinyiriro, kusangana nemakemikari, zvinhu zvakaoma, uye kushanda nguva dzose.

Sei mvura isina kupwanyika ichiva nengozi kune zvisimbiso zvepombi yemvura yakasviba?

Zvisimbiso zvemuchina zvinoshandisa firimu remvura risingaonekwe kuti zvizore uye zvitonhodze. Kana pombi ikaoma, zvisimbiso zvinopisa zvakanyanya, zvichikonzera kutsemuka, kukanganiswa, uye kubuda kwemvura nekukurumidza.

Chisimbiso chisina kunaka chinogona kukonzera kutadza kushanda zvakanaka nguva isati yakwana here?

Ehe. Mvura yakasviba inogona kunge iine makemikari anoparadza, tsvina, mafuta, uye zvinhu zvinosvibisa zvipenyu. Kusarudza zvinhu zvisingaenderane nechiso, elastomer, kana zvinhu zvechitubu zvinogona kukonzera kuzvimba, ngura, kupera, uye kupwanyika kwechisimbiso nekukurumidza.

Zvivako zvingaderedza sei kutadza kushanda kwepombi dzetsvina?

Shandisa zvisimbiso zvakagadzirirwa kuchengetedza mvura yakasviba, dzora tsvina nemarara pazvinogoneka, chengetedza pombi dzakarongeka zvakanaka, dzivirira kuoma kwemvura, uye ongorora kubuda kwemvura, kudedera, uye mamiriro ebheyaringi nguva nenguva.