Valve inowanzoshandiswa isiri-metallic zvinhu tarisa nzira yekubatanidza pakati pemagetsi actuator uye yega yega valve

Valve inowanzoshandiswa isiri-metallic zvinhu tarisa nzira yekubatanidza pakati pemagetsi actuator uye yega yega valve

Ethylene propylene rabha chigaro rated tembiricha range iri -28 ¡æ~120¡æ. EPDM inomirira terpolymer ye ethylene, propylene, uye diene, inowanzonzi EPT Nordell. Yakanakisa ozone kuramba uye kuramba kwemamiriro ekunze, yakanaka yemagetsi insulation kuita, yakanaka kuramba kune polar capacitors uye inorganic media. Naizvozvo, inogona kushandiswa muindasitiri yeHVAC, mvura, phosphate ester, doro, ethylene glycol, etc. Ethylene propylene rubber ZVIGARO HAZVIKAKURUDZWA KUTI ZVISHANDWE MUHYDROCARBON organic SOLVENTS NEMAFUTA, chlorinaTED HYDROCARBONS, turpentINE, kana mamwe maORI.
Valve inowanzoshandiswa isiri-simbi zvinhu
Mhoro, nitrile rabha
Nitrile rubber seat rated temperature range is -18 ¡ã C kusvika 100 ¡ã C. Inowanzonzi, NITRILE, kana HYCAR. Iyo yepasirese rubber zvinhu inokodzera mvura, gasi, mafuta uye girizi, peturu (kunze kwepeturu ine additives), doro uye ethylene glycol, liquefied petroleum gasi, propane uye butane, mafuta emafuta uye mamwe akawanda midhiya. Iyo ine zvakare yakanaka kupfeka kuramba uye deformation kuramba. Chikafu giredhi (FG) nitrile rabha chigaro rated tembiricha renji iri -18¡æ kusvika 82¡æ. Kuumbwa kwayo kunoenderana neCFR Standard Chikamu 21, Chikamu 177.2600. Inogona kushandiswa nenzira yakafanana neyenguva dzose nitrile rabha asi inoda kubvumidzwa kweFDA.
Ethylene propylene rubber EPDM
Ethylene propylene rabha chigaro rated tembiricha range iri -28¡æ~120¡æ. EPDM inomirira terpolymer ye ethylene, propylene, uye diene, inowanzonzi EPT Nordell. Yakanakisa ozone kuramba uye kuramba kwemamiriro ekunze, yakanaka yemagetsi insulation kuita, yakanaka kuramba kune polar capacitors uye inorganic media. Naizvozvo, inogona kushandiswa muindasitiri yeHVAC, mvura, phosphate ester, doro, ethylene glycol, etc. Ethylene propylene rubber ZVIGARO HAZVIKAKURUDZWA KUTI ZVISHANDWE MUHYDROCARBON organic SOLVENTS NEMAFUTA, chlorinaTED HYDROCARBONS, turpentINE, kana mamwe maORI.
Chikafu giredhi ethylene propylene rabha chigaro rated tembiricha range is -28¡æ~120¡æ. Kuumbwa kwayo kunoenderana neCFR Standard Chikamu 21, Chikamu 177.2600. Inogona kushandiswa nenzira yakafanana neyenguva dzose nitrile rabha asi inoda kubvumidzwa kweFDA.
PTFE PTFE
Teflon chigaro chetembiricha yakatarwa ndeye -32 ¡ã C kusvika 200 ¡ã C. Yakanakisa kupikisa kune tembiricha yepamusoro uye ngura yemakemikari. Nekuda kwehurefu hwakanyanya hwepolytetrafluoroethylene, kupenya kwakanyanya, asi zvakare kunogona kudzivirira kukora kweakawanda makemikari media.
Conductive TEFLON NDEYEMUMODIDWE TEfloN chigadzirwa chinobvumira ikozvino kupfuura nepakati peiyo lining KUBVISA KUFUNGWA KWETEFLON. Nekuda kwekuita kwayo, conductive polytetrafluoroethylene haigone kuyedzwa nemagetsi spark.
Yakasimbiswa polyteflon RTFE
RTFE kugadziridzwa kwezvinhu zvePTFE. Kunyangwe iyo friction coefficient ye pure PTFE yakadzikira kwazvo (0.02 ~ 0.04), asi kupfeka kwacho kwakakura, uye nekuda kwekukwira kwayo kuri nyore, hurombo hwemagetsi zvinhu, kuderera kwekutakura, kusasimba kwehumwe kugadzikana uye humwe hunhu, sechinhu chinokwesha chine hukuru. miganhu. Kungogadziriswa chete, kuburikidza nenzira yezvigadzirwa zvinosanganiswa kuti zvisangane nezvinodiwa zvakakosha zvekupfeka-zvisingachinji chisimbiso zvinhu mumafambiro ese ehupenyu, mukuvandudza kupfeka kuramba kwePTFE, kunogona kusanganiswa nezvimwe zvinhu zvisingapfeki senge girazi fiber, kabhoni fiber. , graphite, molybdenum disulfide, poda yebhuronzi uye mamwe maumbirwo emagetsi, Mesh majoini anoumbwa muPTFE akaturikidzana chimiro kuti avandudze kuoma, kupisa kwekushisa, kunyura, uye kusagadzika kwekupfeka.
Fluorine rabha Viton
Iyo yakayerwa tembiricha ye fluorine rabha chigaro ndeye -18¡æ~150¡æ. Viton ichiratidzo chakanyoreswa cheDuPont Company, uye Fluorel chiratidzo chakanyoreswa chakaenzana nefluorine rabha ye3M Company. Ichi chinyorwa chine tembiricha inodzivirira uye yakanakisa kemikari corrosion resistance. Inokodzera zvigadzirwa zvehydrocarbon, kudzika kwakadzika uye yakakwira kuwanda kwemaminerari acid, asi kwete mumhepo media uye mvura (yakashata mvura kuramba).
Ultra yakakwira molecular uremu polyethylene UHMWPE
Ultra-yakakwirira molecular uremu polyethylene zvigaro zvakarongerwa kubva -32 ¡ã C kusvika 88 ¡ã C. Nyaya iyi ine nani yakaderera tembiricha kuramba kupfuura PTFE, asi ichine yakanakisa makemikari kuramba. Uhmwpe zvakare ine yakanaka yekupfeka kuramba uye corrosion kuramba, uye inogona kushandiswa mumamiriro ekupfeka zvakanyanya.
Silicone mhangura rubber Silicone
Copper silicone rubber ipolymer ine organic groups, iyo huru cheni inoumbwa nesilicon uye maatomu eokisijeni. Iro tembiricha yakayerwa inotangira kubva -100 ¡ã C kusvika 300 ¡ã C. Iine kunaka kwekupisa uye kusagadzikana kwekushisa, yakanakisa magetsi ekudzivirira kuita uye yakakura inertness yemakemikari. Inokodzera organic acid uye yakaderera kusanganiswa kweinorganic acid, dilute alkali uye yakanyungudutswa alkali. Kukanganisa: kuderera kwemagetsi simba. Post vulcanization kurapwa kunodiwa.
Graphite Graphite
Graphite ikristaro yekabhoni, isiri-simbi zvinhu, sirivheri grey ruvara, yakapfava mhando, ine simbi inopenya. Kuoma kweMohs ndeye 1 ~ 2, giravhiti chaiyo i2.2 ~ 2.3, uye huwandu hwehuwandu hunowanzo 1.5 ~ 1.8. Iyo ine yakakwira tembiricha kuramba, oxidation kuramba, corrosion resistance, kupisa kutyisa kuramba, kusimba kwepamusoro, kusimba kwakanaka, kusimba kwega kwega kwega, kusimba kwemafuta ekupisa, magetsi conductivity uye zvimwe zvakasarudzika zvemuviri nemakemikari zvinhu. Iyo ine yakakosha kupikisa oxidation, self-lubricity uye plasticity pakupisa kwakanyanya, uye yakanaka magetsi, ekupisa uye adhesion zvivakwa. Inogona kushandiswa sekuzadza kana kuita IMPROver yerabha, mapurasitiki uye akasiyana anoumbwa zvinhu kuvandudza kupfeka kuramba, compression kuramba kana conductivity yezvinhu. Iyo valve gasket, kurongedza uye chigaro zvinowanzogadzirwa negraphite.
Graphite yepamusoro yakanyungudika, kusvika ku3000 ¡æ pasi pevacuum inotanga kupfava inonyunguduka, graphite evaporated sublimation kusvika 3600 ¡æ, iyo general material pasi pesimba rekushisa kwepamusoro inoderera zvishoma nezvishoma, nepo graphite mukupisa kusvika 2000. ¡æ, simba rayo ndeyakajairika tembiricha yakapetwa kaviri panzvimbo, asi mutsauko weoxidation kuramba wegraphite oxidation mwero wakawedzera zvishoma nezvishoma pamwe nekushisa.
Thermal conductivity uye magetsi emagetsi egraphite akanyanya kukwirira, maitiro ayo akakwirira ka 4 kudarika simbi isina tsvina, 2 times yakakwirira kudarika carbon steel, 100 times yakakwirira kudarika general non-metal. Its kupisa conductivity, kwete chete kupfuura simbi, simbi, mutobvu uye zvimwe simbi zvinhu, asiwo pamwe tembiricha kunowedzera kupisa conductivity kunoderera, izvo zvakasiyana kubva mukuru simbi zvinhu, panguva yakanyanya tembiricha, graphite kunyange rinowanzoita adiabatic mamiriro. Naizvozvo, pasi pe-ultra-high tembiricha mamiriro, graphite insulation performance yakavimbika kwazvo. Graphite ine lubricity yakanaka uye plasticity, graphite friction coefficient iri pasi pe 0.1, graphite inogona kuvandudzwa kuita permeable light sheet, muchikamu chekutanga chekuomarara kwegraphite yakakura kwazvo, kunyangwe nedhaimondi zvishandiso zvakaoma kugadzirisa. Graphite ine kugadzikana kwemakemikari, acid resistance, alkali resistance, resistance kune organic solvents corrosion. Nekuda kweiyo yakasarudzika yakasarudzika zvimiro zvegraphite, mukushandiswa kwemazuva ano maindasitiri kunowedzera kunaka.
Iyo yekubatanidza mode pakati pemagetsi actuator uye yega yega valve
Iyo yemagetsi actuator inonyanya kufananidzwa nevhavha, iyo inoshandiswa mune otomatiki control system. Kune marudzi akawanda emagetsi emagetsi, ayo akasiyana mune maitiro ekuita. Semuenzaniso, angular sitiroko yemagetsi actuator ndiyo inobuda angular torque, nepo yakatwasuka electric actuator ndiyo inoburitsa displacement thrust. Mhando yemagetsi emagetsi mukushandiswa kwegadziriro inofanira kusarudzwa maererano nezvinodiwa zvebasa revhavha.
Nzira yekubatanidza
I. Flange connection:
Iyi ndiyo nzira yakajairika yekubatanidza inoshandiswa mumavharuvhu. Zvinoenderana nechimiro chejoint surface, inogona kukamurwa kuita zvinotevera:
1. Smooth type: inoshandiswa kune mavharuvhu ane low pressure. Yakanakira kugadzirisa
2, concave uye convex mhando: yakakwirira kushanda kumanikidza, inogona kushandiswa mune yakaoma washer
3. Tenon uye groove type: gasket ine hombe yepurasitiki deformation inogona kushandiswa mune corrosive media, uye yekuisa chisimbiso iri nani.
4, trapezoidal groove type: ine oval metal mhete sewasher, inoshandiswa mukumanikidza kushanda kwe64 kg/cm2 vharafu, kana tembiricha yevharuvhu.
5, rudzi rwelenzi: washer chimiro che lens, chakagadzirwa nesimbi. Kune mavharuvhu ePRESURE akakwira NEKUSHANDA KUDIKIRWA KWE100 kg/CM2, kana mavharuvhu ekupisa.
6, O mhando yemhete: Iyi imhando nyowani yekubatanidza flange, inogadzirwa nekutaridzika kweakasiyana erabha O ring, iri mukuvharisa mhedzisiro yefomu yekubatanidza.
Chechipiri, tambo yekubatanidza:
Iyi inzira yekubatanidza iri nyore uye inowanzoshandiswa nemavharuvhu madiki. Pane mamwe maviri kesi:
1, chisimbiso chakananga: tambo dzemukati nekunze dzinotamba zvakananga basa rekuisa chisimbiso. Kuti uone kuti mubatanidzwa haudonhe, kazhinji nemafuta ekutungamirira, linoleum uye PTFE raw material yakazadzwa; Ptfe raw material belt, kushandiswa kwekuwedzera kukurumbira; Ichi chinyorwa chine kunaka kwekusagadzikana kwekuora, kuisa chisimbiso, nyore kushandisa uye kuchengeta, disassembly, inogona kubviswa zvachose, nokuti iyo isiri-viscous firimu, yakanyanya kukunda kutungamirira mafuta, linoleum.
2. Kuisa chisimbiso chisina kunanga: simba rekusimbisa screw rinotamirwa kune washer pakati pezvikepe zviviri, kuitira kuti washer iite basa rekuvhara.
Yetatu, kadhi sleeve yekubatanidza:
Kubatana uye kuvharika kweiyo sleeve yekusungirira ndeyekuti kana nati yakasimbiswa, sleeve yekusungirira iri pasi pekumanikidzwa, zvekuti mupendero wayo unoruma mumadziro ekunze kwepombi, uye iyo yekunamatira sleeve yekunze koni iri padyo nejoin body cone. pasi pekumanikidzwa, saka inogona kudzivirira zvakavimbika kuvuza.
Zvakanakira iyi fomu yekubatanidza ndezvi:
1, saizi diki, huremu huremu, chimiro chakareruka, nyore disassembly;
2, kubatana kwakasimba, kushandiswa kwakasiyana-siyana, kunogona kumira kusimba kwepamusoro (1000 kg/cm2), tembiricha yepamusoro (650¡æ) uye kuzununguka.
3, inogona kusarudza zvinhu zvakasiyana-siyana, zvakakodzera kudzivirira ngura;
4, machining kururama zvinodiwa hazvina kukwirira; Zviri nyore kuisa pakakwirira.
Iyo yekubatanidza sleeve yekubatanidza fomu yakashandiswa mune zvimwe zvidiki dhayamita mavharuvhu zvigadzirwa muChina.
Chechina, clamp yekubatanidza:
Iyi IYE NZIRA YEKUKURUMIDZA YEKUKUNGAMIRIRA INODA MABHUTI MAVIRI CHETE UYE YAKAKODZERA KUTI DZINOGONESWA MAVHIVISI Akaderera PRESSURE.
shanu, yemukati yekuzvisimbisa yekubatanidza:
Pamusoro pemhando dzese dzekubatanidza mafomu, ndiko kushandiswa kwesimba rekunze kudzikamisa kudzvanywa kwepakati, kuwana chisimbiso. Izvi zvinotevera zvinotsanangura chimiro chekuzvisimbisa-chibatanidza uchishandisa dhiri yepakati. Mhete yaro yekuisa chisimbiso inoiswa mucone yemukati, ine yepakati yakatarisana nedivi mune imwe Angle, yepakati kudzvanywa kune yemukati koni, uye inotamirwa kune yekuisa chisimbiso mhete, mune imwe Angle yekoni kumusoro, inoburitsa zvikamu zviviri, imwe yakafanana mutsetse wepakati wemuviri wevharuvhu kunze, imwe kumanikidza kumadziro emukati emuviri wevharuvhu. Chikamu chekupedzisira isimba rekuzvisimbisa. Kuwanda kwesimba repakati, ndiko kukura kwesimba rekuzvisimbisa. Saka rudzi urwu rwekubatanidza rwakakodzerwa nepamusoro-soro mavharuvhu. Iyo inochengetedza zvinhu zvakawanda uye basa kupfuura flanged yekubatanidza, asi inodawo imwe chiyero che preload, kuitira kuti kudzvanywa muvharuvhu kusati kwakakwira, kushandiswa kwakavimbika. Ivhavha yakagadzirwa nemusimboti wekuzvisunga zvisimbiso kazhinji ndeye high pressure valve.
Kune marudzi akawanda ekubatanidza valve, somuenzaniso, vamwe havafaniri kubvisa vheji duku, yakasungirirwa pamwe chete nepombi; Mamwe mavharuvhu asiri esimbi, achishandisa socket connection, zvichingodaro. Vashandisi vevharuvhu vanofanirwa kurapwa zvinoenderana nemamiriro chaiwo.