Tsvakurudzo uye kushandiswa kwepamusoro tembiricha valve packing

Tsvagiridzo nekushandiswa kweyakakwira tembiricha yevharuvhu kurongedza Kushanda tembiricha yevharuvhu ndeye 425 ~ 550 ℃ yekushisa kwepamusoro ⅰ giredhi (inonzi PI giredhi). Chinhu chikuru chePI kirasi vharafu ndeye "yepamusoro tembiricha giredhi Ⅰ yepakati kabhoni chromium nickel isingawanzo pasi titanium mhando inodzivirira kupisa simbi" muASTMA351 standard CF8 sehwaro. Sezvo PI giredhi iri izwi chairo, iyo pfungwa yekupisa tembiricha isina simbi (P) inosanganisirwa pano. Naizvozvo, kana iyo svikiro yekushanda iri mvura kana chiutsi, kunyangwe ichiwanikwa yakakwira tembiricha WC6 (t≤540 ℃) kana WC9 (t≤570 ℃), mumafuta esarufa, kunyangwe ichiwanikawo tembiricha yepamusoro C5(ZG1Cr5Mo), asi pano haikwanise kunzi ivo PI giredhi. Tsvagiridzo uye kushandiswa kweyepamusoro tembiricha vharafu yekurongedza Valve chinhu chakajairika chemuchina chigadzirwa muindasitiri yemazuva ano. Sechinhu chakakosha chekudzora muiyo fluid transmission system, inonyanya kushandiswa mubhailer, pombi yehutsi, kunatsa mafuta, indasitiri yemakemikari, moto uye simbi, nekuda kwekuchekwa kwayo, mutemo, kudzvanywa, shunting uye mamwe mabasa. Indasitiri yemazuva ano yakaisa mberi uye yakakwirira zvinodiwa pakuvimbika kwevharuvhu chisimbiso. Kuisa chisimbiso indekisi yakakosha yehunyanzvi yekuongorora mhando yezvigadzirwa zvevharuvhu. Yepamusoro tembiricha vharafu inoreva vharafu ine tembiricha yekushanda yakakwira kupfuura 250 ℃. Iyo yekuisa chisimbiso tekinoroji yehunde yekupisa tembiricha vharafu rave dambudziko rakakurumbira risati ragadziriswa kwemakore mazhinji, uye zvakare iri imwe yeasina simba malink ekuvandudza kuvimbika kwevhavha. Yakajairika tembiricha yakakwira vharafu hunde yakarongedza chisimbiso kazhinji iripo isina kukwana kana yakawandisa chisimbiso, vharafu inodzika nekufamba kwenguva iri nyore kudonha, kubuda kwekupisa, kuputika, chepfu uye zvimwe zvinhu zvine njodzi kwete kungovharwa kwezvirimwa uye kurasikirwa kwehupfumi, asiwo kukonzera kusvibiswa kwezvakatipoteredza, uye kunyange netsaona dzengozi dzevashandi, kumudziyo kunoisa njodzi huru. Kutanga, musimboti wevhavha packing seal Kuisa chisimbiso kwevhavha indekisi yakakosha yekuongorora kunaka uye kushanda kwevhavha. Ikozvino yakawanda yevhavhavha yekudzora kana general valve stem uye kurongedza chisimbiso chekubatanidza chisimbiso, nekuda kwechimiro chayo chiri nyore, kuungana kuri nyore uye kutsiva, mutengo wakaderera uye unoshandiswa. Valve stem uye kurongedza kuvuza chinhu chinowanzoitika. Chikonzero nei kurongedza kuchigona kuita basa rekuisa chisimbiso, musimboti wayo ikozvino kune maviri makuru ekuisa chisimbiso maonero, zvichiteerana achibereka mhedzisiro uye maze mhedzisiro. Packing bearing effect inoreva kurongedza pakati pekuzadza uye hunde, kusvina kurongedza uye pasi pesimba remafuta ekunze, nekuda kwekunetsana kuri munzvimbo yekubatana kwehunde kuumba dhizaini yemvura membrane, gadzira kurongedza uye stem fomu yakafanana neiyo inotsvedza, hukama pakati pekurongedzerwa kwakadaro nedzinde hazvizove nekuda kwekukweshana uye kupera, nekuti firimu remvura riripo panguva imwe chete, iyo yekurongedza uye yevhavha stem nguva iri yakavharwa. Labyrinth packing mhedzisiro inoreva iyo yakatsetseka dhigirii yehunde haigone kusvika kune diki nhanho, kurongedza uye tsinde yevharuvhu inongori chikamu chakabatana uye haina kukwana zvakakwana, kurongedza uye nguva dzose paine mukaha diki pakati pevhavha hunde, uye nekuti. ye incision asymmetry pakati pekurongedza gungano, mapeji aya akagadzira maze ane pamwechete, yepakati, umo kupuruzira kwakawanda, kutsika-pasi, uye kusvika pakuita chisimbiso. Yelabyrinth mhedzisiro inoreva iyo valve stem inotakura chisimbiso chepamusoro level dhigirii haigone kusvika padiki nhanho, kamukana kadiki pakati pehunde uye kurongedza uku ndiko kuvapo kwechinangwa, hachigone kubvisa, kana kubva pachinhu ichi kuenderera mberi nekurongedza dhizaini, kazhinji mhedzisiro yacho haina. yakanaka kwazvo, izvo zviri kukonzera mamiriro ekutanga ekudonha kwenzvimbo kana kubuda kwemagetsi. Kuvhara media kuburikidza nekurongedza uye stem leakage mechanism ine mafomu akawanda: corrosion gap leakage mechanism, porous leakage mechanism, simba rekubuda kwemagetsi, etc. leakage mechanisms, uye chirongwa chekuvandudza chinoshanda chinoiswa pamberi. Vaviri, yazvino yakajairika kurongedza mhando uye application 1, teflon pani mudzi Polytetrafluoroethylene pani midzi yakagadzirwa yakachena POLYTETRAFluOROethylene DISPERsing resin seyakagadzirwa, yakatanga kugadzirwa neyakaomeswa firimu, uyezve kuburikidza nekumonyorora, kuruka mugango rakasimba mudzi. Iri RUDZI RWE disk midzi pasina zvimwe zvinowedzera, rinogona kushandiswa muzvokudya, mishonga, mapepa emakemikari fiber uye zvimwe zvinodiwa zvehutsanana, uye zvine simba rinoparadza mukati pavhavha, pombi. Chiyero chekushandisa: Shandisa tembiricha isingapfuure 260 ℃, shandisa kudzvanywa kwete kupfuura 20MPa, pH kukosha: 0-14. 2, yakawedzera graphite dhisiki mudzi Yakawedzera graphite dhisiki mudzi inozivikanwawo se flexible graphite disc mudzi uchishandisa flexible graphite waya yakarukwa nemwoyo. Yakawedzerwa graphite disc mudzi ine zvakanakira self-lubricity uye thermal conductivity, diki friction coefficient, yakasimba versatility, kunaka kupfava, kusimba kwepamusoro, uye inodzivirira pashaft uye tsvimbo. Chiyero chekushandisa: Shandisa tembiricha isingapfuuri 600 ℃, shandisa kudzvanywa kwete kupfuura 20MPa, pH kukosha: 0-14. 3. Yakakwidziridzwa graphite coil mudzi Iyo yakakwidziridzwa graphite coil inorukwa negirazi faibha, waya yemhangura, simbi isina tsvina, nickel waya, caustic nickel alloy waya uye zvimwe zvinhu zvakasimbiswa ne pure yakawedzera graphite waya. Iine hunhu hwekuwedzera graphite, uye yakasimba kuita zvakasiyana, kunaka kupfava, kusimba kwepamusoro. Yakasanganiswa neyakarukwa midzi midzi, ndiyo imwe yeanoshanda chisimbiso zvinhu kugadzirisa dambudziko rekushisa kwepamusoro uye kuisirwa chisimbiso chepamusoro. Chiyero chekushandisa: Kushanda tembiricha kwete kupfuura 550 ℃, kushanda kumanikidza kwete kupfuura 32MPa, pH kukosha: 0-14. Iyo dhisiki midzi ishanduro yakagadziridzwa yeiyo yakawedzera graphite disc midzi, inova yakanaka kwazvo yekuisa chisimbiso zvinhu. Izvo zviri pamusoro zvinonyora akati wandei akajairika marudzi ekurongedza disc midzi. Muchiitiko chaicho chekugadzira, pachave nemamwe marudzi ekurongedza disc midzi yakagadziridzwa kune yakakosha mamiriro ekushanda. Semuenzaniso, yakanaka makemikari kuramba yearamid fiber coil mudzi; Inokodzera yakakwira kutenderera axis arylon kabhoni fiber yakasanganiswa coil midzi, nezvimwewo, bepa iri rinogumira munzvimbo, kwete yakadzama sumo. Yetatu, yakajairwa vharafu kurongedza chimiro uye kusarudzwa Iyo yakajairwa dzinde kurongedza chisimbiso chimiro chinonyanya kuumbwa nepressure plate, gland, spacer uye kurongedza. Kuti uwane yakanaka yekuisa chisimbiso mhedzisiro, kurongedza kunowanzo kudiwa kuve nedense chimiro, yakanaka kugadzikana kwekemikari, yakaderera friction coefficient. Kazhinji, tembiricha yakaderera pane 200 ℃, iyo filler inowanzosarudzwa polytetrafluoron disc midzi, ine hunhu hwekuzora yakakwira, isiri-viscosity, magetsi ekudzivirira uye kuchembera kwakanaka, uye inoshandiswa mupetroleum, makemikari, mishonga nezvimwe. minda. Graphite disc midzi inosarudzwa nekuda kwekudzivirira kwayo kwekushisa kwepamusoro, kuzvidzora uye kuderera kwehuputi coefficient pane tembiricha kubva ku200 kusvika 450. Graphite disc yakagadzirwa maererano nekushandiswa kwemhando dzakasiyana-siyana, mukushanda kwekushanda, mafirita anogona kusarudzwa maererano ne chaiyo yekushanda mamiriro emhando yakakodzera ye graphite disc, yakadai se250 ℃, yakaderera mamiriro ezvinhu anogona kusarudza yakawedzera graphite disc, yepakati uye yakanyanya kudzvanywa inogona kusarudza yakawedzera graphite disc kana musanganiswa wezvose. Ina, yakakwirira tembiricha vharafu packing chimiro leakage kuongororwa Pasi pepamusoro tembiricha mamiriro, senge kusarudzwa kwegraphite disc midzi chisimbiso chimiro, zviri nyore kuoneka kuvuza. Zvikonzero ndezvizvi: Iro graphite disc root inoputirwa mubhokisi rekutakura, uye axial pressure pakutakura inoshandiswa nekusimbisa bhoti yekusimbisa pachikwata chekutakura. Nekuti kurongedza kune imwe dhigirii yepurasitiki, axial pressure mushure mekumanikidzwa kweradial uye micro deformation, mukati megomba uye dzinde zvakanyatsoenderana, asi kuenderana uku hakuna yunifomu kumusoro nekudzika. Maererano nekugoverwa kwekumanikidzwa kwekutakura uye simba rekuisa chisimbiso, zvinogona kuonekwa kuti kudzvinyirirwa kwepamusoro kutakura uye kuderedzwa kwepasi mubhokisi rekutakura hakusi yunifomu. Iyo yepurasitiki deformation yezvikamu zviviri zvekurongedza haina kuenderana zvakananga, uye zviri nyore kuve nekunyanyisa kana kusakwana chisimbiso pakati pekurongedza nevhavha stem. Panguva imwecheteyo, kukakavara pakati pekurongedza uye tsinde yevharuvhu kuchave kwakawanda kana radial compression simba padyo negland yakawanda, uye vharafu hunde uye kurongedza zviri nyore kupfeka pano. Panyaya yekushisa kwepamusoro, kukwira kwekushisa, kuwedzera kukuru kwe graphite disc root, friction inowedzerawo, kupisa kwekushisa kunokonzerwa nekushisa kwepamusoro hakusi panguva yakakodzera, kukurumidza kupfeka kwehunde uye kurongedza, iyo ndiyo inonyanya kukosha. chikonzero chepamusoro tembiricha vharafu packing leakage. shanu, yakakwira tembiricha vharafu kurongedza chimiro dhizaini dhizaini kurongedza pasi petembiricha yemamiriro ekunze inonyanya kukonzeresa kudonha, uye tembiricha yekutakura inowanzoenderana nekuwedzera graphite disc. Iko kuzvimba uye kuzvimba kwekuwedzera graphite kurongedza kwakanaka, iyo rebound coefficient yakakwira, asi iyo yakashata haina kusimba, kushomeka kweshear kuramba, kazhinji yakaiswa mukati mechikamu chebhokisi rekurongedza, kudzivirira kuwedzera kwegraphite kurongedza nekurongedza gland. uye pasi kudzvinyirira pad extrusion kukuvara; Iyo yakakwidziridzwa graphite disc mudzi inogona kuiswa kumusoro uye kuzasi nekuti ine nickel waya uye yakasimba uye inodzivirira extrusion. Kunyangwe musanganiswa weiyo yakawedzera graphite uye yakakwidziridzwa graphite disc inogadzirisa chikamu chekutakura kudonha pakupisa kwakanyanya. Asi nokuda kwechiito chevharuvhu chinowanzoitika mamiriro ekushanda, graphite disc root wear rate inenge yakakwirira, kushandiswa kwekanguva mushure mekudiwa kwekusimbisa mabhaudhi ekusungirirwa pabhokisi rekuputira, nokuti bhuku uye kuongorora zvakaunza dambudziko guru. Kubva pakufunga kwedambudziko riri pamusoro apa, takabatanidza mabhuku kumba nekune dzimwe nyika uye ruzivo rwakaunganidzirwa mumakore achangopfuura kuti tigadzirise chigadziro chekugadzirisa valve packing, kunyanya kumamiriro akasiyana-siyana ekushanda, kupisa kwepamusoro uye kuderera kwepasi uye kupisa kwepamusoro uye kudzvinyirira, kuvandudza kwakanangwa kwakasiyana kupisa tembiricha kurongedza chimiro, gadzirisa vharafu pasi pemamiriro ekushisa kwakanyanya kudonha nyore. Yepamusoro tembiricha uye yakaderera kudzvanywa mhando, uchishandisa yakakosha yekubhadhara mhete chitubu uye yakasanganiswa graphite disc mudzi musanganiswa. Kumanikidza kwekushanda hakuna kukwirira, saka sleeve yekutakura inodzimwa. Iyo yakakosha yekubhadhara mhete chitubu inowedzerwa pazasi pebhokisi rekuisa. Paunenge uchiisa, mabhoti anoda kusimbiswa neimwe preload. Kunyangwe kana graphite kurongedza uye hunde ichiita seyakapfava, chitubu chemhete chinogona kukurumidza kugadzirisa zvinoenderana nekugadzirisa kuti ive nechokwadi chekudonha kwevhavha. Nyora tembiricha yakanyanya uye yakanyanya kudzvanywa, iyi imhando yepamusoro yekurongedza sisitimu, inotora dhisiki chitubu uye yakakandwa chitubu chekunze kaviri muripo wechimiro, inogona kudzivirira mukana wekupisa tembiricha disable chitubu, rudzi urwu rwemamiriro, kunyanya mukupisa kwakanyanya, kudzvanywa kwakanyanya. compensation point kukundikana mune imwe nzvimbo, rimwe boka remuripo richiri kushanda, zvese zvisingapindire, muripo mumwe chete asi panguva imwe chete yekurongedza basa. Iyo disc chitubu chisimbiso zvakare inogonesa kushandiswa mumamiriro ezvinhu akaomarara ekunze, uye chimiro chekunze chemapoinzi maviri emuripo anogonesa kutsiva pasina kubvisa iyo yese stuffing bhokisi, kuvandudza kugona uye nyore kushanda. Mushure menguva refu yekutevera mushandisi, iyi mhando yekurongedza dhizaini yekupisa kwakanyanya, yakanyanya kudzvanywa stem sealing kudzivirira kuvuza mhedzisiro iri pachena, hupenyu hurefu hwebasa.