Ikimenyetso cya Elastomer Bellow Mechanical Seal ni iki?

Ikimenyetso cya Elastomer Bellow Mechanical Seal ni iki?

Ijwi rya elastomer riri hejuruikirango cya mekanikeni igikoresho cyihariye cyane cyo gufunga ku iherezo cyakoreweibikoresho bizenguruka, cyane cyane ipompo zikoresha centrifugal, mixers, na agitators. Bitandukanye n'udupfundikizo dusanzwe dukoresha O-rings cyangwa V-rings zigenda zinyura ku mugozi, iyi miterere ikoresha umuyoboro wa elastomeric uvanze—uri hepfo—kugira ngo uvane icyuho kiri hagati y'umugozi uzenguruka n'isura y'ibanze yo gufunga. Iyi miterere ikuraho gukenera agapfundikizo k'inyongera gahindagurika, bityo bigabanye uburyaryate bw'umugozi n'ibibazo bijyana no kubungabunga.

Ibyuma bisanzwe byo gufunga bya elastomer bikunze gukorwa ku bugari bw'umugozi kuva kuri mm 10 kugeza kuri mm 100, nubwo hari ingano zihariye ku bikoresho byihariye by'inganda. Binyuze mu guhuza imikorere yo gufunga, kohereza uruziga, no guhindura imiterere y'umurambararo mu gice kimwe cya polymer, abahanga bashobora kugera ku buryo bukomeye, buto, kandi bukora neza cyane bukwiriye ubwoko bwinshi bw'imikoreshereze y'amazi afite umuvuduko muto kugeza kuri hagati.

Ibice by'ingenzi n'amahame y'imikorere

Imiterere y'urufunguzo rwa elastomer bellow mechanical seal ishingiye ku bice bine by'ingenzi: impeta y'ibanze izenguruka, impeta ihoraho, elastomer bellow ubwayo, n'uburyo bw'imashini bukoresha impeta. Impeta z'ibanze n'izikoresha zigize urwego rw'ibanze rwo gufunga, zifatanye ku buryo busanzwe bupimirwa mu mikandara y'urumuri rwa helium kugira ngo harebwe ko zihuye neza na mikorosikopi. Izi sura zitandukanyijwe gusa na filime y'amazi ya hydrodynamic ikorwa n'umwuka urimo kuvomwa.

Isoko y'imashini—akenshi iba isoko imwe ikomeye kandi ikora neza—ishyirwa inyuma y'inyuma y'ibanze. Itanga imbaraga zikenewe zo gufunga kugira ngo ikomeze gukorana mu maso mu gihe cyo gutangira ibikoresho, kuzimya, no mu bihe by'umuvuduko muke wa sisitemu. Kubera ko isoko ikunze kuba iri hanze y'amazi akoreshwa cyangwa irinzwe n'inyuma, ntabwo ishobora kuziba cyangwa kwangirika ugereranyije n'amasoko mato menshi aboneka mu bishushanyo bimwe na bimwe by'imashini zisunika.

Uburyo hepfo itanga uburyo bwo gufunga no koroshya

Ikiranga iki cyiciro cy’iki gipfundikizo ni imikorere ibiri y’iki gipfundikizo. Ku gice cy’inyuma cy’iki gipfundikizo, impera y’inyuma y’iki gipfundikizo cya elastomer ifite aho ihurira n’ibintu bibangamira. Iki gipfundikizo gikomeye gikora nk’igipfundikizo cya kabiri ku kigingi, kikarinda ko amazi anyura mu gihe kimwe cyohereza imbaraga zizenguruka ku ruhande rw’ibanze rwo gufunga hatabayeho gukoresha vis cyangwa pin zo gukurura.

Mu buryo bw'agati, imiyoboro y'inyuma itanga ubushobozi bwo koroshya ibintu. Uko isura y'inyuma y'ikimenyetso cy'ibanze igenda yangirika mu masaha ibihumbi y'akazi, imanuka kugira ngo ikomeze gukorana. Isura isanzwe ya elastomer ishobora kwishyura kugeza kuri mm 2.0 z'ishusho cyangwa isura. Byongeye kandi, ubu buryo bworoshye bugabanya imiterere mibi y'impande n'inzira y'umugozi, bigatuma isura y'ibanze ikomeza kuba ndende kandi filime ya hydrodynamic igakomeza kuba nziza mu gihe cy'imikorere ihindagurika.

Impamvu Elastomer Bellow Mechanical Seals ari ingenzi

Akamaro k'inganda k'udupfunyika twa elastomer bellow mechanical seal gaturuka ku bushobozi bwatwo bwihariye bwo gukemura ibibazo by'ubudahangarwa buhoraho biri mu miterere ya O-ring ihindagurika. Mu bidukikije bikoresha amazi, ubuziranenge bw'ibikoresho bizenguruka bujyanye neza n'ubuziranenge bw'udupfunyika twabyo. Udupfunyika twa elastomer dukemura impamvu nyamukuru zitera gucika intege kw'udupfunyika, bigatuma habaho igihe kirekire cyo gukora no kugabanya amafaranga akoreshwa mu kubungabunga.

Kubera ko izi seal ziyobora isura izenguruka mu buryo butaziguye bw'inyuma y'umugozi, zikuraho ikibazo cyo gucika intege kw'umugozi. Gucika intege bibaho iyo impeta ya O-ring ihora inyerera inyuma no inyuma ku mugozi bitewe no guhinda cyangwa kwangirika kw'isura, amaherezo igakurura umugozi cyangwa agapfunyika. Mu gukuraho ubu buryo bwo gucika intege, ibikoresho birinda inzira ihenze kandi itwara igihe kinini yo gusimbuza cyangwa kongera gukoresha imigozi ya pompe.

Uburyo bigira ingaruka ku kugenzura amazi asohoka

Kugenzura imyanda mu byuma bifunganye bishingiye ku kugumana aho bihurira hagati y’impande zombi. Ibyuma bifunganye bisanzwe bikunze "kumanika," aho impeta ya O-ring ifata ku giti bitewe n’imyanda yiyongera, imiterere y’ibipimo, cyangwa ubwinshi bw’ibice. Iyo bimanitse, isoko y’imbere ntishobora gusunika isura yombi imbere kugira ngo yishyure ubusaza, bigatera amazi menshi.

Ifu ya elastomer bellow seal ntishobora kumanikwa kuko ifu ya kabiri iba idahindagurika ugereranyije n'umugozi. Igikorwa cyo gupfuka kw'umugozi gihora gifasha kwangirika mu maso no kugenda kw'umugozi nta kintu na kimwe gisaba ko igice cyawo gitembera. Mu buryo buhamye bukora mu buryo bujyanye n'ibipimo byagenwe, iyi miterere ikomeza ku buryo buhamye igipimo cy'imyuka iva mu kirere n'amazi biri munsi ya 0.1 mL / isaha, bityo bigatuma hubahirizwa amabwiriza akaze agenga ibidukikije n'umutekano.

Porogaramu zisanzwe n'uburyo bwo kuzikoresha

Izi seal ziraboneka hose mu nganda zisaba ubwizigirwa bwinshi mu gihe hakoreshwa ibintu biringaniye. Ni zo zisanzwe zikoreshwagutunganya amazi n'amazi yanduye mu mujyi, pompe zikoresha HVAC, sisitemu zo koga na spa, hamwe no gutunganya ibiryo n'ibinyobwa aho bikenewe ko habaho ubwuzuzanye buri hagati y'ibinyabutabire. Imiterere yazo ikomeye ituma zikwiriye cyane cyane amazi atari Newtonian cyangwa ibintu birimo uduce duto.

Kubera ko nta kintu na kimwe gifunga gihindagurika gishobora kuziba, ibifunga bya elastomer bellow bishobora gufata neza ibinyabiziga bifite ibintu bikomeye bihagaze kugeza kuri 10% by'uburemere, mu gihe impande z'ibifunga by'ibanze zikozwe mu bikoresho bikomeye nka Silicon Carbide cyangwa Tungsten Carbide. Ubu bushobozi bwo gufata imyanda butuma biba ngombwa cyane mu mapompo atwara amazi mabi no mu buryo bwo kuhira mu buhinzi aho isuku y'amazi idashobora kwemezwa.

Uburyo Elastomer Bellow Mechanical Seals igereranywa n'izindi Seals

Kugaragaza neza uburyo bwo gufunga neza bisaba gusobanukirwa uburyo ikoranabuhanga ritandukanye ryo gufunga rikoreshwa. Ibyuma bifunga neza bya elastomer bifite agaciro gakomeye hagati y’ibyuma bifunga bihendutse kandi bibungabungwa neza n’ibyuma bifunga neza cyane.

Nubwo bitanga inyungu zikomeye ugereranyije n’udupfundikizo dusanzwe twa O-ring pusher mu bijyanye no kwizerwa no kubungabunga umugozi, bibangamira imiterere y’ibikoresho bya elastomeric byubatswemo. Gusuzuma iri tandukaniro ni ingenzi ku bahanga bashinzwe kunoza ubwizigirwa bw’inganda no kugenzura ingengo y’imari ikoreshwa mu gutanga amasoko.

Itandukaniro ry'ingenzi mu mikorere

Itandukaniro ry'ibanze hagati y'ubwoko bw'ibifunga rishingiye ku buryo bisubiza imihindagurikire y'imirongo n'imimerere ikabije y'imikorere. Ibifunga byo gupfunyika birahendutse ariko bishobora kumanikwa no gupfunyika. Ibifunga byo gupfunyika by'icyuma bikozwe mu mpande, byubatswe mu byuma nka Hastelloy cyangwa Inconel, bikuraho gupfunyika kandi bishobora kwihanganira ubushyuhe bukabije (akenshi birenga 400°C), ariko bifite ikiguzi cy'imari gishobora kuba kinini inshuro icumi kugeza kuri makumyabiri ugereranyije n'ibindi bisimbura ibya elastomeric.

Nkuko bigaragazwa muri matrix yo kugereranya, ibishushanyo mbonera bya elastomer bitanga inyungu zo gukora igishushanyo mbonera cya bellow kidapfa gucika nta giciro kinini cy’ikiguzi cy’icyuma, bigatuma biba amahitamo meza ku bwinshi bw’ikoreshwa risanzwe ryo kohereza amazi.

Igitutu, ubushyuhe, n'ubuhanga mu bya shimi

Ifu ikoreshwa mu gufunga ifu ya elastomer igengwa cyane n'imiterere ya polymer iri muri iyo fu. Nitrile Rubber (NBR) ni iy'ingenzi ku mazi n'amavuta yoroheje, itanga ubushyuhe ntarengwa bwo gukora bungana na 90°C. Ethylene Propylene Diene Monomer (EPDM) yongerera iki gipimo kugeza kuri 120°C kandi itanga ubudahangarwa bwiza ku mazi ashyushye, umwuka, na alkali zoroheje, nubwo ibora vuba iyo hari amazi akomoka kuri peteroli.

Ku bintu bikoresha imiti ikaze cyane cyangwa ubushyuhe bwinshi, elastomer za Fluorocarbon (FKM/Viton) zikoreshwa, zigashyira ubushyuhe ku rugero rwa dogere selisiyusi 200. Imipaka y'umuvuduko nayo ni ingenzi cyane; kubera ko elastomer bellow ari polymer ihinduka, ishobora kwibasirwa n'ingufu nyinshi cyangwa igasohoka bitewe n'umuvuduko mwinshi w'umubiri. Kubera iyo mpamvu, inyinshi mu mashini zikoresha elastomer bellow zidafite ubwishingizi zihabwa amanota ku muvuduko ntarengwa w'imikorere uri hagati ya 12 na 16 bar (1.2 kugeza 1.6 MPa). Kurenga izi ngamba bisaba guhindura igishushanyo cy'ingufu kiringaniye cyangwa inyuzi y'icyuma.

Uburyo bwo guhitamo, gushyiraho, n'ibintu bikoreshwa

Gukoresha neza ikidodo cya elastomer kiri munsi ya mekanike bishingiye cyane ku mabwiriza akomeye yo guhitamo no ku mahame agenga ishyirwaho. Ndetse n'ikidodo cyakozwe neza cyane kizapfa vuba niba ibipimo by'amazi y'imikorere birengeje ibisabwa, cyangwa niba uburyo bwiza bwo gukora butirengagijwe mu gihe cyo guteranya.

Injeniyeri naabatekinisiye bo kubungabungaigomba gukoresha uburyo bwo gusimbuza agace gafunga ibintu nk'uburyo bugenzurwa cyane, isuzuma imipaka ya thermodynamic no kwemeza ko pompe n'umugozi byujuje ubushobozi bwo kurangiza neza ingano n'ubuso.

Uburyo bwo gusuzuma amazi, ubushyuhe n'umuvuduko

Gusuzuma ibipimo by'imikorere bisaba kubara PV (Umuvuduko-Umuvuduko), igereranya ubushyuhe buterwa n'ingufu zishyirwa ku mpande z'ipfundikizo. Ku ipfundikizo risanzwe rya elastomer rikoresha grafiti ya karuboni irwanya Aluminium Oxide (Ceramic), ubusanzwe ingano ntarengwa y'imikorere iba iri hagati ya 10 na 15 MPa·m/s. Iyo pompe ikora ku muvuduko mwinshi cyangwa ingufu nyinshi zirenze uyu mupaka wa PV, firime y'amazi izahinduka umwuka, bigatera umuyaga wumutse no kwangirika k'ubushyuhe bwa elastomer.

Isuzuma ry'amazi rigomba kandi kubara imiterere y'igihe gito. Amazi afite ubushyuhe bukabije kuri 20°C ashobora kwangiza cyane elastomer yatoranijwe kuri 80°C. Byongeye kandi, amazi ahinduka crystalline iyo akonje cyangwa ahuye n'ikirere ashobora gushimangira ipfundo riri aho mu gihe pompe ifunga, agaca polymer iyo ibikoresho byongeye gutangira. Muri ibyo bihe, kuzimya no gusohora amazi bishobora kuba ngombwa.

Uburyo bwo gushyiraho no gukoresha uburyo busanzwe bwo gucika intege

Uburyo bwo gushyiraho bugena mu buryo butaziguye igihe cyo kumara ikirango.umuyoboro wa pompe ugomba kuba udafite uduce duto, imikoba, n'inkombe zityaye zishobora gukata umurambararo w'imbere w'inyuma mu gihe cyo gushyiramo. Amabwiriza agenga inganda agena ko ubuso bw'umugozi bugomba kuba buri hagati ya 0.8 na 1.2 µm kugira ngo habeho uburyo bwiza bwo gufunga no kohereza torque.

Uburyo busanzwe bwo gucika intege ni ugucika intege mu gice cyo hasi, akenshi bigaterwa no gukaraba nabi mu gihe cyo guteranya. Abatekinisiye bagomba gukoresha amavuta ajyanye na elastomer yihariye; urugero, gushyira amavuta akomoka kuri peteroli ku gice cyo hasi cya EPDM bizatuma irabu ibyimba, yorohe, kandi amaherezo inanirwa bitewe n'imbaraga zizenguruka. Gukoresha amavuta ya silicone yemewe cyangwa amazi yoroheje y'isabune ni ngombwa kugira ngo intebe zo hasi zigende neza nta kuzunguruka.

Amahame ngenderwaho, imipaka, n'ubuziranenge bw'umutanga serivisi

Kugira ngo habeho impinduka kandi imikorere yizewe, abaguzi bagomba kugaragaza ibirango bihuye n’ibipimo byemewe, cyane cyane EN 12756 (yahoze ari DIN 24960). Gukurikiza aya mahame byemeza ko ibirango bizakwira mu dusanduku dusanzwe two gushyiramo pompe hatabayeho gukoresha imashini zikozwe mu buryo bwihariye cyangwa ibyuma byihariye.

Impamyabushobozi y'umutanga serivisi nayo ni ingenzi cyane.Abaguzi b'ingandabagomba gutegeka abakora ibifunga kugira icyemezo cya ISO 9001 kandi bagashobora gutanga uburyo bwo gukurikirana ibikoresho bya elastomer ndetse n'ibikoresho byo mu maso. Abakora ibikoresho by'ubuhanga buhanitse bakunze kugira igipimo cy'ubusembwa kiri munsi ya 0.5%. Gusaba amakuru ajyanye no kugenzura isura (SPC) kugira ngo hamenyekane ko isura igororotse kandi ifatanye neza bishobora kurinda ko ibice by'isura bidakora neza.

Uko abaguzi bagomba gufata icyemezo

Gushaka elastomer munsi ya mekanike bisaba uburinganire hagati y’ikiguzi cy’ibikoresho bya mbere n’ubwizigirwa mu mikorere y’igihe kirekire. Nubwo ibi bikoresho muri rusange bifatwa nk’ibicuruzwa bishobora gukoreshwa, kubifata nk’ikintu gihendutse bishobora gutuma habaho igihe kinini cyo kudakora neza no kwiyongera kw’ikiguzi cy’umutungo (TCO).

Abaguzi bagomba gusuzuma ibyo basabwa n'ibikoresho byabo bizenguruka kandi bagashyiraho ibipimo ngenderwaho byo kugura biha agaciro igihe hagati y'ibitaragenze neza (MTBF) kurusha amafaranga make yo kuzigama mu mafaranga y'ibanze. Urwego rw'ibyemezo rushinzwe kwemeza rutuma ibipimo by'ibirango bihura n'intego zo kwizerwa kw'inganda.

Ibipimo ngenderwaho by'ibiciro byo kugura n'igihe cy'ubuzima

Igiciro cya mbere cyo kugura ifu ya elastomer gishingiye cyane ku bunini n'imiterere y'ibikoresho. Ifu ya NBR/Carbon/Ceramic isanzwe igurwa mu bwinshi (Ingano ntoya zo gutumiza hagati ya 100 na 500) ishobora kugura make kuva ku madolari 10 kugeza ku madolari 50 kuri buri gikoresho. Ariko, kuvugurura ibikoresho byo ku maso bigezweho nka Silicon Carbide (SiC) cyangwa Tungsten Carbide (TC) kugira ngo birwanye kwangirika kw'ingufu bizongera ikiguzi cyabyo kuva kuri 30% kugeza kuri 50%.

Nk’uko imiterere y’ibiciro by’ubuzima bw’umuntu ibigaragaza, kwiyongera ku rugero ruciriritse mu ikiguzi cyo kugura ibikoresho bikomeye byo mu maso hamwe na elastomer zikomeye bigaragazwa byoroshye no kwaguka gukomeye muri MTBF.

Ibintu by'ingenzi byakunzwe

• Imyanzuro y'ingenzi n'impamvu nyamukuru ya Elastomer Bellow Mechanical Seal
• Ibisobanuro, kubahiriza amategeko, n'igenzura ry'ingaruka bikwiye kwemezwa mbere yo kwiyemeza
• Intambwe zikurikiraho zifatika n'ibyo abasomyi bashobora gushyira mu bikorwa ako kanya

Ibibazo Bikunze Kubazwa

Ikimenyetso cya elastomer gikoreshwa mu gukora iki?

Ifunga ibikoresho bizenguruka nka pompe zikoresha centrifugal, mixers, na agitators, cyane cyane muri serivisi z'umuvuduko muto kugeza kuri hagati aho hakenewe uburyo bwo kugenzura amazi asohoka neza no kuyabungabunga byoroshye.

Ni gute ikimenyetso cyo hasi cya elastomer gitandukanye n'ikimenyetso cyo gusunika?

Ikoresha agakoresho koroshye ka elastomer aho gukoresha agakoresho ko mu bwoko bwa O-ring gafite ibara ry’inyuma, gafasha mu kwirinda gucika intege kw’umugozi, kagabanya ibyago byo kumanika, kandi koroshya imikorere y’amazi yanduye cyangwa akoresha icyuma gipima.

Ni izihe nyungu nyamukuru za elastomer below mechanical seal?

Zitanga imiterere mito, ibice bike bitimuka kandi bifunga neza, zigabanya kwangirika neza, kandi zirinda amazi kuva mu gice cy’inyuma cy’inyuma.

Ni izihe nganda zikunze gukoresha ibishushanyo mbonera bya elastomer bellow?

Zikoreshwa cyane mu gutunganya amazi, gutunganya imiti, mu buryo bwo mu mazi, mu mpapuro n'amatafari, mu nganda zitanga amashanyarazi, no mu kubungabunga imashini zikoresha amazi mu nganda.

Ese Victor Seals ishobora gutanga seal zisimbura elastomer ziri munsi yayo ku mapompo ya OEM?

Yego. Victor Seals itanga uburyo bwo gusimbuza elastomer bujyanye na OEM ku birango nka Grundfos, Flygt, Alfa Laval, IMO, Lowara, na Allweiler mu rwego rwo kubungabunga no gusana.