Maitiro Ekusarudza Chisimbiso Chemuchina Chemakemikari Pombi Masisitimu

Kusarudzwa kweChisimbiso cheMichina Kunokanganisa Sei Kuvimbika kwePombi yeKemikari

Munzvimbo dzekugadzirisa makemikari,zvisimbiso zvemakanikainoshanda sedziviriro huru kubva mukurasikirwa nemvura inotyisa, kusvibiswa kwezvakatipoteredza, uye kusashanda zvakanaka kwemaitiro. Kubatana pakati pemugodhi wepombi inotenderera nechivharo chepombi chisingachinji kunomiririra muganhu uri nyore apo makemikari ane simba anogona kubuda nyore nyore kana akasachengetedzwa zvakanaka.

Mapoka einjiniya anofanira kuona kutsanangurwa kwechisimbiso chemakanika kwete sekutenga zvinhu, asi sekudyara kwakakosha. Tekinoroji dzepamusoro dzekuvhara dzinowanzo tarisirwa kuti dzisvike paMean Time Between Failures (MTBF) inodarika mwedzi makumi matatu nematanhatu, kunyangwe mukushandiswa kusingachinji kana kuti kunoparadza zvakanyanya. Kukundikana kusarudza gadziriro yakakodzera yechisimbiso kunokanganisa hydraulic integrity yesystem yese yekupomba.

Sei chisimbiso chakakodzera chichikosha pakudzora kubuda kwemvura

Kudzora kubuda kwemvura hakusi kungoda kushanda chete asi mutemo wakaomarara wekutonga. Masangano anotonga anosimbisa miganhu yekubudisa mvura inoputika (VOC), kazhinji achideredza kubuda kwemvura inoputika kusvika pasi pe500 pamamiriyoni (ppm) munzvimbo dzekugadzira makemikari. Kuwana nekuchengetedza mwero uyu wekudzivirira kunoda zvisimbiso zvemajini zvakagadzirwa neunyanzvi pane kurongedza kwetsika.

Kuti mafirimi emvura arambe aripo asingabvumire kubuda kwemvura yakawanda, zviso zvechisimbiso zvine machira akakodzera zvinofanira kuramba zvakati sandara kusvika mukati mebhandi rimwe chete kana maviri echiedza chehelium, zvichienzana nema microns angangoita 0.29 kusvika 0.58. Kana chisimbiso chakakodzera chakaenzana ne rheology yemvura chaiyo, chinochengetedza mukaha uyu mudiki, zvichiita kuti makemikari ane njodzi kana ane chepfu arambe akaparadzaniswa nemhepo nevashandi vemafekitori.

Ndedzipi njodzi dzekushanda nedzebhizinesi dzinokwira kana sarudzo isina kunaka yechisimbiso

Mhedzisiro yemari yekusakwana kwezvisimbiso inosvika kure kupfuura mutengo wekutanga wekutenga zvikamu. Zviyero zvekuvimbika zvinoratidza kuti kukundikana kwechisimbiso chemakanika kunokonzeresa inenge 70% yenguva yese yekushanda kwepombi ye centrifugal muchikamu chemakemikari. Kukundikana kamwe chete nguva isati yakwana kunogona kukonzera $5,000 kusvika $15,000 mumabasa ekugadzirisa zvakananga uye zvikamu zvekutsiva, kusasanganisa mutengo wakakwira wekurasika kwekugadzirwa.

Uyezve, kutadza kushanda zvakanaka kwezvisimbiso kunounza njodzi huru dzebhizinesi, kusanganisira mari yekugadzirisa nharaunda, faindi dzemutemo, uye njodzi dzekuchengetedza. Kudiwa kwekugadzirisa kusina kurongwa kunomanikidzawo mainjiniya kupinda munzvimbo dzine njodzi. Nekuisa simbi dzezvisimbiso dzakakodzera uye magadzirirwo echiso, mafekitori anoderedza matambudziko aya uye kuchinja kubva pakudzimwa kwemoto kuenda kukutarisira zvinhu zvinofanotaurwa.

Chii Chinofanira Kutungamirirwa neData reKushanda paSarudzo yeZvisimbiso zveMechanical

Kusarudza chisimbiso chemuchina chakakodzera kunoda kuti pave neongororo yakakwana yekushanda kwepombi. Kuvimba nezvinodiwa nepombi panzvimbo pemamiriro chaiwo ekushanda mukamuri rechisimbiso kunowanzo kukonzera kuora kwezvikamu nekukurumidza.

Mainjiniya anofanirwa kuunganidza pepa reruzivo rwemaitiro akarurama rinoratidza mamiriro ezvinhu akagadzikana, matanho ekutanga kwenguva pfupi, uye mamiriro ezvinhu anogona kukanganisa kuitira kuti chisimbiso chakasarudzwa chigone kutsungirira matambudziko ese ekushanda.

Ndezvipi zvinhu zvine mvura, kumanikidzwa, tembiricha, uye zvinhu zvakasimba zvinonyanya kukosha?

Hunhu hwemvura hunotonga zvakanyanya zvinodiwa zvesimbi uye elastomeric zvechisimbiso chemakanika. Zvinhu zvakakosha zvinosanganisira simba regiravhiti, viscosity, uye kuumbwa kwemakemikari muzvikamu zvese zvekushanda. Maprofile ekumanikidza akakosha zvakaenzana; mapombi emakemikari akajairwa anogona kushanda muvacuum, nepo mapombi ekudyisa reactor ane pressure yakakwira anogona kuisa seal kudzvinyiriro dzemukati dzinopfuura 1,200 psig (82 bar).

Kupisa kwakanyanya, kubva pa -40°C kusvika pakushandiswa kwekupisa kwakanyanya kwe400°C, kunotungamira kushivirira kwekuwedzera kwekupisa kwezvisimbiso uye miganhu yekuora kwemaringi echipiri eO. Pamusoro pezvo, zvese zvinosungirirwa zvakasimba (TSS) zvinokanganisa zvakanyanya kupfeka kwechiso. Mvura ine huwandu hwezvakasimba zvinopfuura 2% nehuremu inowanzoda kusanganiswa kwechiso chakasimba uye kudzora kwakakosha kwezvakatipoteredza kudzivirira abrasive scoring.

Kumhanya kwemugodhi, rudzi rwepombi, uye mamiriro ekamuri rechisimbiso zvinokanganisa sei sarudzo

Kushanduka kwemuchina mukati mekamuri rechisimbiso kunotarisa mwero wekupfekwa uye kugadzirwa kwekupisa panzvimbo dzechisimbiso. Kumhanya kwemugodhi, kunowanzo tangira pa1,450 kusvika 3,600 RPM mumapombi akajairwa ecentrifugal, kunotyaira kumhanya kweperipheral (V) panzvimbo yechisimbiso. Kumhanya uku, pamwe chete nekumanikidzwa kwechisimbiso (P), kunosimbisa PV factor—chiyero chakakosha chinodzora kupisa kwekukweshana uko chisimbiso chinogona kubvisa zvakachengeteka.

Rudzi rwepombi uye saizi yebhokisi rekuputira zvinokanganisawo kusarudzwa. Mapombi emakemikari akajairika eANSI B73.1 anowanzo kuve nemakamuri akakura, akatetepa echisimbiso akagadzirirwa kuwedzera kutenderera kwemvura uye kuburitsa tunhu, nepo mapombi ekare kana akasarudzika anogona kunge aine mabhokisi ecylindrical ane simba. Chisimbiso chinofanira kunge chakabatana nemakamuri aya kuti chive nechokwadi chekuti mvura inotsiviwa uye inotonhorera zvakakwana kutenderedza zvikamu zvinotenderera.

Kana ngura, crystallization, vapor pressure, uye dry running zvave zvakakosha

Kuchinja kwechikamu mukati mekamuri rechisimbiso kunokonzera njodzi huru yekuvimbika. Muganho wekupisa we10°C (18°F) pakati pekupisa kwemvura inoshandiswa uye kumanikidzwa kwayo kweutsi mumamiriro ekamuri rechisimbiso unowanzodiwa. Kana muganho uyu ukatyorwa, mvura yacho inopenya kuita utsi, zvichikonzera kuoma kwemvura, kupisa kwakanyanya, uye kutsemuka kwezviso zvechisimbiso.

Kuora nekuumbwa kwesimbi kunokonzera njodzi dzakafanana. Mvura inooma kana yasangana nemhepo yemudenga, yakaita sesodium hydroxide, inoparadza zviso zvesimbi nekukurumidza kana divi remudenga rechisimbiso risina kudzimwa zvakanaka. Munzvimbo dzine ngura yakawanda, mwero wekuora uripo pazvikamu zvesimbi isingatsvi 316 unogona kudarika 0.5 mm pagore, zvichiita kuti pave netsananguro yemhando dzakasiyana dzesimbi kuti chisimbiso chirambe chakasimba.

Ndezvipi Zvisimbiso Zvine Magadzirirwo uye Zvishandiso Zvinonyatsokodzera Mapombi Emakemikari

Kusangana kwekugadzirwa kwemakanika nesainzi yezvinhu kunotsanangura kugona kwechisimbiso kutsungirira mamiriro emakemikari ane hukasha. Geometry yezvinhu inosarudza kubata nekumanikidzwa uye kunyatsoiswa, nepo kusarudzwa kwezvinhu kuchitonga kuramba makemikari uye kufambisa kwekupisa.

Kufamba mumatanho akasiyana-siyana aripo kunoda nzira yakarongeka yekufananidza kugona kwechisimbiso nenzira dzakatarwa dzekukundikana dzinotarisirwa mukuita kwemakemikari.

Kuenzaniswa kwezvisimbiso zvega, zviviri, katuriji, zvakaenzana, uye zvisina kuenzana

Magadzirirwo echisimbiso anodzora mashandiro acho ekumanikidzwa uye kuvimbika kwekuiswa kwacho. Zvisimbiso zvisina kuenzana, izvo zvinoita kuti nzvimbo yese yekumusoro iomerwe nekumanikidzwa kwebhokisi rekuputira, zvinowanzo ganhurira kumanikidzwa kuri pasi pe150 psig (10 barg) kudzivirira kupisa kwakanyanya. Zvisimbiso zvine mwero zvinoshandura chiyero chejometri kuderedza masimba ekuvhara, zvichizvibvumira kubata kumanikidzwa kusvika ku600 psig (41 barg) kana kupfuura pasina kukurumidza kupfeka kumeso.

Zvisimbiso zvega zvinopa mhinduro isingadhuri yemvura isina njodzi, asi makemikari ane chepfu kana anoshanduka-shanduka zvakanyanya anoda magadzirirwo maviri ezvisimbiso. Zvisimbiso zvemadhisiki maviri (zvakaviri) zvinoshandisa mvura inodzvinyirira yakawanda kuti ive nechokwadi chekuti hapana kuburitswa kwemhepo, nepo zvisimbiso zviviri (zvisina kumanikidzwa) zvinopa rutsigiro rwekuchengetedza. Pasinei nemaitiro acho, kuchinja kubva kuzvisimbiso zvezvikamu zvisina kusimba kuenda kuzvisimbiso zvemadhisiki zvagara zvabatanidzwa kunogona kuderedza zvikanganiso zvekuisa kusvika ku70%, sezvo magadzirirwo emadhisiki ekubvisa kudiwa kwekudzvanywa kwespring nemaoko uye kurongeka kwechiso.

Ndezvipi zvinhu zvechiso, ma elastomer, uye zvikamu zvesimbi zvinoenderana nebasa remakemikari

Kubatana kwezviso ndiwo musimboti wechisimbiso chemuchina. Silicon Carbide (SiC) yakabatana neSiC inopa simba rekudzivirira makemikari uye kufambisa kwekupisa kwakanaka, kunyange zvazvo inogona kuputsika. Tungsten Carbide (TC) inopa simba rekupwanyika kwepamusoro-soro pakushandiswa kwemafuta akawanda kana slurry asi inogona kukanganiswa nemamwe maacid. Carbon graphite inowanzo shandiswa sechiso chekusangana nekuda kwehunhu hwayo hwekuzvizora, izvo zvinopa chinodzivirira kubva mumamiriro ekunze akaoma kwenguva pfupi.

Zvinhu zvechipiri zvekuvhara (elastomers) zvakakosha zvakaenzana. Ma-O-rings akajairwa eFKM (Viton) akakodzera makemikari akawanda anosvika 200°C, asi zvinonyungudutsa zvine simba guru, maamine, kana tembiricha inosvika 327°C zvinoda perfluoroelastomers (FFKM) seKalrez. Kune midziyo yesimbi—kusanganisira masprings, madrive pins, uye cartridge gland—metallurgy inofanira kuvandudzwa kubva pa standard 316SS kuenda kuAlloy 20, Hastelloy C-276, kana Titanium pakubata aggressive acids kana chloride.

Ndezvipi zvinodiwa zvekuenzanisa zvinobatsira kuongorora sarudzo dzechisimbiso

Kuongorora misanganiswa iyi kunoda kuenzanisa kwakarongeka kwemiganhu yekupisa, kuenderana kwemakemikari, uye kukodzera kwekushandiswa. Mainjiniya anofanirwa kusanganisa ma process fluids nemachati ekubatana kwezvinhu kuti ave nechokwadi chekuti ma primary faces kana secondary elastomers haazokanganise.

*(Cherechedza: Muganho weSiC structure; muganho chaiwo wechisimbiso unotemwa ne elastomer nezvikamu zvesimbi.)

Maitiro Ekuongorora Maitiro, Masisitimu Ekutsigira, uye Vatengesi

Chisimbiso chemakanika hachiwanzo shanda chakazvimiririra; kugara kwacho kwenguva refu kunoenderana zvakanyanya nehurongwa hwerutsigiro rwekubatsira uye kutevedzera mitemo yeinjiniya yepasi rose. Zvivakwa zvakatenderedza zvinotonga mashandiro echisimbiso, zvichipa kutonhora kwakakosha, mafuta, uye mitemo yekumanikidza.

Kuongorora vatengesi nerutsigiro rwavo kwakakosha sekusarudza michina yechisimbiso pachayo, kuve nechokwadi chekuti kushanda kwenguva refu uye kutevedzera mitemo.

Ndezvipi zvinodiwa, zvinodiwa pakutevedzera mitemo, uye zvinodiwa nemiti zvinoshanda

Magadzirirwo akadai seAPI 682 (Chinyorwa chechina) neISO 21049 anopa hurongwa hwakasimba hwekupatsanura zvisimbiso, kuyedza, uye magwaro muzvikamu zve petrochemical nemakemikari. Kunyange zvazvo zvirimwa zvemakemikari zvakajairika zvichiwanzoshandisa nhungamiro dzeANSI/ASME B73.1, kushandisa misimboti yeAPI 682 yekushandiswa kwemakemikari kwakakosha kunovimbisa kuvimbika kwakanyanya.

Magadzirirwo emiti ane basa guru. Nzvimbo dzakawanda dzinoshandisa mitemo yeinjiniya yemukati iyo inorayira kuti pave nemakemikari elastomeric, inoganhurira kushandiswa kwesimbi dzakati (semuenzaniso, kurambidza copper alloys mukushandiswa kweammonia), kana kuti inoda zviyero zve cartridge gland zvakajairwa kuti zvideredze kuoma kwezvinhu zviri mudura.

Kana zvirongwa zvekuchenesa, masisitimu ekudzivirira, zvishandiso, uye maturusi ekubatsira zvinodiwa

Masisitimu ekudzora nharaunda, anotsanangurwa nemapurani emapaipi eAPI, akakosha pakugadzirisa nharaunda yekamuri rechisimbiso. Chirongwa chekutanga 11 chinoshandisa tambo yekubvisa pombi kuti ibvise zvisimbiso, zvichitonhodza uye kudzivirira kuungana kweutsi. Kune mvura ine chepfu kana ine njodzi inoda zvisimbiso zviviri, sisitimu yePlan 53A inowanzo shandiswa.

Chirongwa 53A chinoshandisa dura rekunze kupa mvura inodzivisa kumanikidzwa pakati pezvisimbiso zviviri. Kuti mvura ishande zvakanaka isadonhedze kunze, sisitimu iyi yekudzivirira inofanira kushandiswa uye kuchengetwa padanho re 1.5 bar (22 psi) pamusoro pesimba repamusoro rinotarisirwa remukamuri yekusimbisa. Mashandisirwo akaomarara angada Chirongwa 54, chinoshandisa sisitimu yekuchenesa kunze yakamanikidzwa, inomanikidzwa kutenderera kuti ishande zvakanyanya pakupisa.

Maitiro ekuongorora bvunzo dzemutengesi, rutsigiro, uye nguva dzekutungamira

Kuongororwa kwekutenga kunofanirwa kusvika pakushanda kwemugadziri. Vatengesi vanofanirwa kupa magwaro ekuongorora anochinja-chinja, zvichiratidza kushanda kwechisimbiso pasi pemamiriro ekumanikidzwa uye kumhanya kwechinhu chisati chatumirwa. Kuongororwa kwegland rechisimbiso ne hydrostatic kusvika ka1.5 kupfuura kumanikidzwa kwekushanda kunobvumidzwa (MAWP) ndicho chinodiwa chekuchengetedza.

Nguva dzemuchina wekugadzira zvinhu uye rutsigiro rwemuchina wekugadzira zvinhu zvakakosha pakugadzirisa zvinhu. Kunyange hazvo zvisimbiso zveANSI cartridge zvinogona kuva nenguva dzemuchina wekugadzira zvinhu zvemavhiki 1 kusvika maviri, zvisimbiso zve alloy zvakagadzirwa zvakanaka zvinogona kutora mavhiki masere kusvika gumi nemaviri kuti zvigadzirwe. Kugona kwemutengesi kupa mapurogiramu ekugadzirisa nekukurumidza, zvinhu zvemuchina wekugadzira zvinhu zvakasakara, uye mainjiniya ekugadzirisa matambudziko panzvimbo yacho zvinokanganisa zvakananga kuwanikwa kwepombi yemuchina.

Maitiro Api Anofanira Kushandiswa Nemapoka Pakusarudza Mechaniki

Kuchinja kubva padzidziso dzepfungwa kuenda pakutenga zvinhu zvinobudirira kunoda nzira yekushanda yeinjiniya ine hunhu hwakasiyana. Mapoka ekushanda, kugadzirisa, uye kuvimbika anofanirwa kushanda pamwe chete kuona kuti chisimbiso chakasarudzwa chinoenderana nemamiriro ezvinhu uye kugona kwekugadzirisa.

Maitiro ekusarudza akarongeka anodzivirira sarudzo dzekutenga zvinhu zvisina kurongeka, kuderedza kuwanda kwezvinhu zviri muchitoro uye kuona kuti mhedzisiro yekuvimbika inoshanda nguva dzose mufekitori yese yemakemikari.

Ndeipi nzira yekushanda nhanho nhanho inobatsira kufananidza rudzi rwechisimbiso nemamiriro ekushanda

Nzira yekusarudza inofanira kutanga netsananguro yakazara yemvura, kunyora njodzi dzemakemikari, pH, viscosity, uye kumanikidzwa kwemhepo. Danho rechipiri rinosanganisira kuronga miganhu yekushanda, kuverenga pressure-velocity (PV) factor, uye kusimbisa miganhu yebhokisi rekuputira. Danho rechitatu rinoda kuona zvinodiwa zvekuchengetedza zvakatipoteredza (API Piping Plans) kuderedza njodzi dzakaonekwa dzakadai se crystallization kana flashing.

Chekupedzisira, danho rechina rinosarudza kusarudzwa kwezvinhu zvemaface, elastomers, uye metallurgy zvichibva padata rakaunganidzwa. Kufambiswa kwemabasa uku kwakarongeka kunoita kuti zvipingamupinyi zvionekwe nekukurumidza; semuenzaniso, kuziva kuti mwero wemhepo yakaderera yemvura unoda chisimbiso chePlan 53A kaviri usati chisimbiso chimwe chete chakachipa uye chisina kukwana charongwa zvisirizvo.

Maitiro ekuenzanisa mari yemubhadharo nehupenyu hwebasa uye njodzi yekugadzirisa

Kururamisa mari kunofanira kubva pakushandiswa kwekutanga kwemari (CapEx) kusvika paTotal Cost of Ownership (TCO).

Zvinhu Zvinokosha Zvaunofanira Kuziva

• Mhedzisiro yakakosha uye chikonzero cheMechanical 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

Chii chinofanira kuenzaniswa nevatengi pakutanga pavanotsvaga Mechanical Seal?

Tanga nemhepo/mhando yemhando yezvakatarwa, zvinodiwa pakutevedzera mitemo, zvirambidzo zvekuisa, uye mutemo wezvimedu zvemuchina mushure mekutengesa. Zvinhu izvi zvina zvinowanzo sarudza njodzi yese uye mhando yemutengo.

Vaverengi vanogona sei kudzora mutengo wekutenga Mechanical Seal?

Kuparadzanisa FOB yeyuniti, huwandu hwekurongedza, mashandisirwo emidziyo, mutero/mutero, uye mwero wekudzoka unotarisirwa. Modhi iri nyore yemutengo wepasi neSKU tier inobatsira kudzivirira kushamisika kwemari.

Ndezvipi zvitupa zvinowanzo dikanwa paMechanical Seal mumisika mikuru?

Zvinodiwa zvinosiyana zvichienderana nemusika wekuenda; tarisai mitemo inoshanda yekutevedzera mitemo yemagetsi/kuchengetedza uye zvinhu usati wasimbisa PO, uye chengetai mishumo yerabhoritari yakabatana neshanduro dzeSKU chaidzo.

Vagovanisi vanofanira sei kugadzirisa zvinangwa zveMOQ uye zveinventory zveMechanical Seal?

Shandisa nzira yekuparadzanisa zvinodiwa uye nguva yekutungamira kuti uise MOQ ine tier. Chengetedza maSKU ari kufamba nekukurumidza mustock uku uchideredza ma "long-tail variants" ane "long-tail turns" anononoka uye mitengo yakakwira yekubata.

Ndeipi rondedzero inoshanda yekudzora hunhu hweodha dzeMechanical Seal?

Tsanangura AQL, runyorwa rwezvikanganiso zvakakosha, bvunzo dzebasa, uye kuongororwa kwekubviswa kwepakeji. Tarisa usati watumira uye chengeta mafambiro emhinduro ezvikanganiso anoteverwa nefekitori.