Kodi Zisindikizo za Makina a Pampu Zimagwira Ntchito Bwanji?

Zisindikizo Zamakinandizofunikira kwambiri kuti thupi likhale lolimbaNjira Yotsekera Pampu, kuteteza bwino kutuluka kwa madzi mozungulira shaft yozungulira pampu. Kumvetsetsa bwinoMfundo Yogwirira Ntchito ya Chisindikizo cha Makinakumaphatikizapo kuzindikiraKufunika kwa mphete za O mu zomatira za pampuzotsekera zosasinthika ndiUdindo wa masika mu zisindikizo zamakinakuti mupitirize kuyang'anizana maso ndi maso. Njira yonseyi ikufotokoza momveka bwinoMomwe chisindikizo cha makina chogwiritsira ntchito pampu ya centrifugal chimagwirira ntchitoMu 2024, zinthu zofunika kwambirizi zinapanga ndalama zokwana USD 2,004.26 miliyoni pamsika.

Mfundo Zofunika Kwambiri

• Zisindikizo zamakinaAmaletsa kutuluka kwa madzi ozungulira shaft yozungulira pampu. Amagwiritsa ntchito zigawo ziwiri zazikulu, nkhope yozungulira ndi nkhope yosasuntha, zomwe zimakanikizana pamodzi kuti zipange chitseko cholimba.
• Pakati pa nkhope zimenezi pali gawo lochepa la madzi lotchedwa hydrodynamic film. Filimuyi imagwira ntchito ngati mafuta odzola, kuchepetsa kuwonongeka ndi kuletsa kutuluka kwa madzi, zomwe zimathandiza kuti chisindikizocho chikhalepo kwa nthawi yayitali.
• Kusankha chisindikizo choyenera cha makinaZimadalira zinthu monga mtundu wa madzi, kuthamanga, ndi liwiro. Kusankha bwino ndi kusamalira zimathandiza kuti zisindikizo zizigwira ntchito bwino komanso kusunga ndalama zokonzera.

Zigawo Zofunika Kwambiri za Zisindikizo Zamakina a Pampu

Kumvetsetsamagawo osiyanasiyana a chisindikizo chamakinazimathandiza kumveketsa bwino ntchito yake yonse. Chigawo chilichonse chimagwira ntchito yofunika kwambiri popewa kutuluka kwa madzi ndikuwonetsetsa kuti pampu ikugwira ntchito bwino.

Nkhope Yozungulira ya Chisindikizo

Nkhope yozungulira ya chisindikizo imalumikizana mwachindunji ndi shaft ya pampu. Imazungulira ndi shaft, ndikupanga theka la mawonekedwe oyambira otsekera. Opanga amasankha zipangizo za gawoli kutengera mawonekedwe amadzimadzi ndi momwe amagwirira ntchito.

Zipangizo zodziwika bwino zogwiritsira ntchito nkhope zozungulira chisindikizo ndi izi:

• Zosakaniza za kaboni graphite, zomwe nthawi zambiri zimagwiritsidwa ntchito ngati nsalu yovala kumaso.
• Tungsten carbide, chinthu cholimba chomwe chimamangiriridwa ndi cobalt kapena nickel.
• Ceramic, monga aluminiyamu oxide, yoyenera kugwiritsidwa ntchito pa ntchito zochepa.
• Bronze, chinthu chofewa komanso chogwirizana ndi zinthu zina zomwe zimakhala ndi mafuta ochepa.
• Ni-Resist, chitsulo chopangidwa ndi austenitic chokhala ndi nickel.
• Stellite®, chitsulo chopangidwa ndi cobalt-chromium alloy.
• GFPTFE (PTFE Yodzazidwa ndi Galasi).

Kutha kwa pamwamba ndi kusalala ndizofunikira kwambiri pa nkhope zozungulira za seal. Kutha kwa pamwamba, komwe kumafotokoza kukhwima, kumayesedwa ndi 'rms' (root mean square) kapena CLA (pakati pa mzere). Kumbali ina, kusalala kumafotokoza malo osalala opanda kukwera kapena kutsika. Akatswiri nthawi zambiri amatchula kusalala ngati kugwedezeka mu zisindikizo zamakanika. Nthawi zambiri amayesa kusalala pogwiritsa ntchito kuwala kosalala ndi kowala kofanana, monga gwero la kuwala kwa helium. Gwero la kuwalali limapanga mikanda yowala. Mkanda uliwonse wa kuwala kwa helium umayimira ma microns 0.3 (0.0000116 mainchesi) a kusiyana ndi kusalala. Chiwerengero cha mikanda yowala yomwe yawonedwa chimasonyeza kuchuluka kwa kusalala, ndi mikanda yochepa yomwe imasonyeza kusalala kwakukulu.

Zimafunika kusalala kwa inchi imodzi pa inchi imodzi kuti zitseke.

Pa ntchito zambiri zokhudzana ndi nkhope zozungulira za chisindikizo, kukhwima kwabwino kwa pamwamba nthawi zambiri kumakhala pafupifupi mainchesi 1 mpaka 3 (ma micrometer 0.025 mpaka 0.076). Kulekerera kusalala kwa malo ogwirira ntchito kumakhala kolimba kwambiri, nthawi zambiri kumafuna kulondola mkati mwa magawo ochepa a inchi. Ngakhale kupindika pang'ono kapena kusalingana kungayambitse kutuluka kwa madzi. Gome ili pansipa likuwonetsa zofunikira za kusalala ndi kutsiriza kwa malo ogwirira ntchito:

Nkhope Yosasuntha Yosindikiza

Nkhope yosasunthika ya chisindikizo imakhalabe yokhazikika pa pompu. Imapereka theka lina la mawonekedwe oyambira otsekera. Gawoli silizungulira. Zipangizo zake ziyenera kukhala zolimba kwambiri komanso zosavala kuti zisakhudze nkhope yozungulira nthawi zonse.

Nkhope zomatira za kaboni zimagwiritsidwa ntchito kwambiri ndipo zimatha kupangidwa kuti zigwirizane ndi kukangana kosiyanasiyana. Nthawi zambiri zimakhala zopanda mankhwala. Tungsten carbide imapereka kukana kwabwino kwa mankhwala, tribological, ndi kutentha poyerekeza ndi kaboni. Silicon carbide imasunga mphamvu kutentha kwambiri, imakhala ndi kukana kwabwino kwa dzimbiri, komanso kutentha kochepa. Izi zimapangitsa kuti ikhale yoyenera kugwiritsidwa ntchito movutikira, movutikira, komanso mopanikizika kwambiri. Aluminium oxide, chifukwa cha kuuma kwake, imapereka mawonekedwe abwino kwambiri ogwiritsidwa ntchito.

Nazi zinthu zina zomwe zimagwiritsidwa ntchito ndi zinthu zomwe zimagwiritsidwa ntchito:

• Tungsten Carbide: Chida ichi ndi cholimba kwambiri. Chimapereka kukana kwa tinthu tating'onoting'ono komanso kukana kugwedezeka, ngakhale kuti chili ndi mphamvu zochepa kuposa Silicon Carbide. Kulimba kwake kwa Mohs ndi 9.
• Mpweya: Mpweya wofewa komanso wopepuka umakopa kwambiri ukaphatikizidwa ndi chinthu cholimba. Komabe, ndi wofewa komanso wofooka, zomwe zimapangitsa kuti usagwiritsidwe ntchito ndi zinthu zolimba. Triple Phenolic Resin Impregnated Carbon Graphite imapereka mphamvu yowonjezereka yogwiritsidwa ntchito ndi mafuta ochulukirapo kapena mankhwala amphamvu.
• Alumina Ceramic (kuyera kwa 99.5%): Iyi ndi njira yotsika mtengo yokhala ndi mankhwala abwino kwambiri komanso kukana kuwonongeka chifukwa cha kuuma kwake kwambiri. Kulimba kwake kwa Mohs ndi 9-10. Komabe, imatha kusweka ndi kutentha komanso kugwedezeka. Izi zimapangitsa kuti isagwiritsidwe ntchito ngati chosungira zinthu chokhala ndi tinthu tolimba, mafuta ochepa, kapena kusintha kwadzidzidzi kwa kutentha.
• Silicon Carbide: Chida ichi chimaonedwa kuti ndi chothandiza kwambiri pa tribologically chikaphatikizidwa ndi kaboni. Ndi chida cholimba kwambiri komanso chosawonongeka kwambiri pa nkhope ya seal, chomwe chimapereka mphamvu yapadera ya mankhwala. Pa mafuta opaka ndi tinthu tating'onoting'ono tolimba, kupaka nkhope ziwiri za seal za Silicon Carbide kumalimbikitsidwa. Kulimba kwake kwa Mohs ndi 9-10.

Zinthu Zosindikiza Zachiwiri

Zinthu zina zotsekera zimapereka chitseko chosasinthasintha pakati pa zinthu zotsekera ndi pompu kapena shaft. Zimathandizanso kuyenda kwa axial kwa nkhope zotsekera. Zinthuzi zimatsimikizira chitseko cholimba ngakhale nkhope zoyamba zitasuntha pang'ono.

Mitundu yosiyanasiyana ya zinthu zosindikizira zachiwiri ndi izi:

1. Mphete za O: Izi zili ndi gawo lozungulira. Ndi zosavuta kuziyika, zogwiritsidwa ntchito mosiyanasiyana, komanso zamtundu wofala kwambiri. Ma O-rings amapezeka m'mitundu yosiyanasiyana ya elastomeric ndi ma durometers kuti agwirizane ndi kutentha ndi mankhwala osiyanasiyana.
2. Elastomer kapena thermoplastic bellowsIzi zimagwiritsidwa ntchito pamene ma sliding dynamic seals sali abwino kwambiri. Amapotoka kuti alole kuyenda popanda kutsetsereka ndipo amapezeka m'zinthu zosiyanasiyana. Anthu amawadziwanso kuti ndi 'maboti'.
3. Ma wedges (PTFE kapena carbon/graphite): Ma wedges omwe adatchulidwa chifukwa cha mawonekedwe awo opingasa, amagwiritsidwa ntchito ngati mphete za O sizili zoyenera chifukwa cha kutentha kapena kuwonetsedwa ndi mankhwala. Amafuna mphamvu zakunja koma amatha kukhala otsika mtengo. Zoletsa zimaphatikizapo kuthekera 'kopachikika' mu ntchito zodetsedwa komanso fretting.
4. Zitsulo zachitsulo: Izi zimagwiritsidwa ntchito pa kutentha kwambiri, vacuum, kapena ukhondo. Zimapangidwa kuchokera ku chidutswa chimodzi cha chitsulo kapena welded. Zimapereka kutseka kwachiwiri komanso mphamvu ya masika kuti ziyende bwino.
5. Ma gasket athyathyathya: Izi zimagwiritsidwa ntchito potseka chitseko chosasinthika, monga kutseka chitseko cha makina ku flange yoyikira kapena malo ena olumikizirana osasinthasintha mkati mwa msonkhano. Sizingathe kusuntha ndipo ndi zotsekera zamtundu wa compression, nthawi zambiri zimagwiritsidwa ntchito kamodzi.
6. Ma U-cup ndi ma V-rings: Dzina lake limatengera magawo awo, ndipo amapangidwa kuchokera ku zinthu zopangidwa ndi elastomeric kapena thermoplastic. Amagwiritsidwa ntchito pa kutentha kochepa komanso kuthamanga kwambiri, komanso pamene pakufunika kugwirizana ndi mankhwala enaake.

Kugwirizana kwa zinthu zomangira zinthu zachiwiri ndikofunikira kwambiri. Madzi amphamvu amatha kuchitapo kanthu ndi zinthu zomangira, kuphwanya kapangidwe kake ka mamolekyu. Izi zimapangitsa kuti zikhale zofooka, zofooka, kapena zofewa. Izi zingayambitse kuonda, kusweka, kapena kusweka kwathunthu kwa zinthu zomangira, kuphatikizapo zinthu zachiwiri zomangira. Pazinthu zomangira kwambiri monga hydrofluoric (HF) acid, ma perfluoroelastomers amalimbikitsidwa ngati chinthu chachiwiri chomangira. Izi zimachitika chifukwa cha kufunika kwa zinthu zosagwira mankhwala zomwe zimatha kupirira kusasinthasintha ndi kukakamizidwa kwa mankhwala amphamvu otere. Kusagwirizana kwa mankhwala kumabweretsa kuwonongeka kwa zinthu ndi dzimbiri mu Ma Mechanical Seals, kuphatikizapo zinthu zachiwiri zomangira. Izi zingayambitse kuti zinthu zomangira zidumphire, zichepetse, zisweke, kapena ziwonongeke. Kuwonongeka kotereku kumawononga umphumphu wa chisindikizo ndi katundu wa makina, zomwe zimapangitsa kuti kutayikira kukhale kochepa komanso moyo wautali wautumiki. Kutentha kwambiri, kapena zochita za exothermic zomwe zimachitika chifukwa cha madzi osagwirizana, zimathanso kuwononga zinthu zomangira popitirira malire awo ofunikira kutentha. Izi zimapangitsa kuti mphamvu ndi umphumphu zitayike. Zinthu zazikulu zomwe zimapangitsa kuti zinthu zigwirizane ndi izi zikuphatikizapo kutentha kwa madzi, pH, kuthamanga kwa dongosolo, ndi kuchuluka kwa mankhwala. Zinthu izi zimapangitsa kuti chinthucho chisathe kuwonongeka.

Njira za Masika

Makina a kasupe amagwiritsa ntchito mphamvu yokhazikika komanso yofanana kuti nkhope zozungulira komanso zosasuntha zigwirizane. Izi zimatsimikizira kuti zitseko zimakhala zolimba ngakhale nkhopezo zitayamba kutopa kapena pamene mphamvu ikusinthasintha.

Mitundu yosiyanasiyana ya njira za masika ndi monga:

• Kasupe Wozungulira: Kasupe uyu ali ngati konokono. Nthawi zambiri amagwiritsidwa ntchito m'malo otayirira kapena odetsedwa chifukwa cha kapangidwe kake kotseguka, komwe kamaletsa kusonkhanitsa tinthu tating'onoting'ono. Amapereka mphamvu yofanana komanso kuyenda bwino.
• Single koyilo Spring: Iyi ndi kasupe wosavuta wozungulira. Amagwiritsidwa ntchito makamaka poyika zisindikizo zamtundu wa pusher pamadzi oyera monga madzi kapena mafuta. Ndi yosavuta kusonkhanitsa, yotsika mtengo, komanso imapereka mphamvu yotseka nthawi zonse.
• Mafunde a Masika: Kasupe uyu ndi wosalala komanso wozungulira. Ndi wabwino kwambiri pa zisindikizo zazing'ono pomwe malo ozungulira ndi ochepa. Amatsimikizira kupanikizika kofanana m'malo ang'onoang'ono, amachepetsa kutalika kwa chisindikizo chonse, komanso amalimbikitsa kulumikizana kokhazikika pamaso. Izi zimapangitsa kuti chisindikizo chikhale chochepa komanso kuti chisindikizo chikhale chokhalitsa nthawi yayitali.
• Zitsime Zambiri Zopangira Ma CoilIzi zimakhala ndi akasupe ang'onoang'ono ambiri ozungulira nkhope ya chisindikizo. Amapezeka nthawi zambiri muzisindikizo zamakaniki zoyenerandi mapampu othamanga kwambiri. Amagwiritsa ntchito mphamvu yofanana kuchokera mbali zonse, amachepetsa kuwonongeka kwa nkhope, ndipo amagwira ntchito bwino pa mphamvu yokwera kapena RPM. Amapereka kudalirika ngakhale kasupe kamodzi katalephera.

Palinso mitundu ina ya njira zogwirira ntchito za masika, monga ma spring a masamba, ma bellow achitsulo, ndi ma elastomeric bellows.

Msonkhano wa Mbale ya Gland

Cholumikizira cha gland plate chimagwira ntchito ngati malo oikira chosindikizira cha makina ku pompu. Chimasunga nkhope ya chosindikizira chosasuntha bwino pamalo pake. Cholumikizirachi chimatsimikizira kuti zigawo za chosindikizira mkati mwa pompu zikugwirizana bwino.

Mfundo Yogwirira Ntchito ya Zisindikizo Zamakina

Kupanga Chotchinga Chotsekera

Zisindikizo zamakinaPewani kutuluka kwa madzi mwa kukhazikitsa chisindikizo chosinthasintha pakati pa shaft yozungulira ndi nyumba yosasuntha. Maonekedwe awiri opangidwa bwino, imodzi yozungulira ndi shaft ndi inayo yolumikizidwa ku pompu, amapanga chotchinga chachikulu chotsekera. Maonekedwe awa amakanikizana, ndikupanga mpata wopapatiza kwambiri. Pa zisindikizo za gasi, mpata uwu nthawi zambiri umakhala wa ma micrometer awiri mpaka anayi (µm). Mtunda uwu ukhoza kusintha kutengera kupanikizika, liwiro logwiritsa ntchito, ndi mtundu wa mpweya wotsekedwa. Mu zisindikizo zamakina zomwe zimagwira ntchito ndi madzi amadzi, mpata pakati pa nkhope zotsekera ukhoza kukhala wochepa ngati ma micrometer 0.3 (µm). Kulekanitsidwa kochepa kwambiri kumeneku ndikofunikira kwambiri pakutseka bwino. Kukhuthala kwa filimu yamadzi pakati pa nkhope zotsekera kumatha kuyambira ma micrometer angapo mpaka mazana angapo a ma micrometer, motsogozedwa ndi zinthu zosiyanasiyana zogwirira ntchito. Micrometer ndi gawo limodzi mwa magawo miliyoni a mita kapena 0.001mm.

Filimu ya Hydrodynamic

Kapepala kakang'ono ka madzi, kotchedwa filimu ya hydrodynamic, kamapangidwa pakati pa nkhope zozungulira ndi zosasuntha. Filimuyi ndi yofunika kwambiri kuti chisindikizo chigwire ntchito komanso chikhale ndi moyo wautali. Imagwira ntchito ngati mafuta odzola, kuchepetsa kwambiri kukangana ndi kuwonongeka pakati pa nkhope zotsekera. Filimuyi imagwiranso ntchito ngati chotchinga, kuteteza kutuluka kwa madzi. Filimuyi ya hydrodynamic imakwaniritsa chithandizo chachikulu cha hydrodynamic, chomwe chimawonjezera moyo wa chisindikizo cha nkhope mwa kuchepetsa kuwonongeka. Kusinthasintha kwa mafunde pankhope imodzi kungayambitse mafuta odzola a hydrodynamic.

Filimu ya hydrodynamic imapereka kuuma kwakukulu kwa filimu ndipo imapangitsa kuti kutayikira kuchepe poyerekeza ndi mapangidwe ambiri a hydrostatic. Imawonetsanso liwiro lotsika la kukweza (kapena kuzungulira). Ma Grooves amapopera madzi mwachangu mu mawonekedwe, ndikupanga kupanikizika kwa hydrodynamic. Kupanikizika kumeneku kumathandizira katundu ndikuchepetsa kukhudzana mwachindunji. Ma diffuser grooves amatha kukhala ndi mphamvu yayikulu yotsegulira kutayikira komweko poyerekeza ndi ma spiral grooves athyathyathya.

Njira zosiyanasiyana zopaka mafuta zimafotokoza momwe filimuyi imachitira:

Kukhuthala kwa madzimadzi kumachita gawo lofunika kwambiri pakupanga ndi kukhazikika kwa filimuyi. Kafukufuku wokhudza mafilimu amadzimadzi owonda, okhuthala, a Newtonian adawonetsa kuti kukhuthala kwachilendo kumayambitsa mawu atsopano mu kukakamiza kwa kayendedwe ka madzi. Izi zimasintha kwambiri equation yosinthika yopanda mzere wa makulidwe a filimu. Kusanthula kwa mzere kukuwonetsa kuti kukhuthala kwachilendo nthawi zonse kumakhala ndi mphamvu yokhazikika pamunda woyenda. Kuyenda kwa mbale yoyima kumakhudzanso kukhazikika; kuyenda kotsika kumawonjezera kukhazikika, pomwe kuyenda kokwera mmwamba kumachepetsa. Mayankho a manambala akuwonetsanso ntchito ya kukhuthala kwachilendo pakuyenda kwa filimu yopyapyala pansi pa mayendedwe osiyanasiyana a mbale m'malo otentha, kusonyeza bwino momwe imakhudzira kukhazikika kwa madzi.

Mphamvu Zokhudza Zisindikizo Zamakina

Mphamvu zingapo zimagwira ntchito pankhope zotsekera panthawi yogwira ntchito ya pampu, kuonetsetsa kuti zikulumikizanabe ndikusunga chotchinga chotsekera. Mphamvu izi zimaphatikizapo mphamvu yamakina ndi mphamvu ya hydraulic. Mphamvu yamakina imagwira ntchito kuchokera ku masika, ma bellows, kapena zinthu zina zamakina. Imasunga kulumikizana pakati pankhope zotsekera. Mphamvu ya hydraulic imapanga kuchokera ku kuthamanga kwa madzi kuchokera ku njira. Mphamvu iyi imakankhira nkhope zotsekera pamodzi, ndikuwonjezera mphamvu yotsekera. Kuphatikiza kwa mphamvu izi kumapanga dongosolo lolinganiza lomwe limalola kuti chisindikizo chigwire ntchito bwino.

Kupaka Mafuta ndi Kusamalira Kutentha kwa Zisindikizo Zamakina

Mafuta oyenerandipo kuyendetsa bwino kutentha ndikofunikira kwambiri pakugwira ntchito kodalirika komanso kwa nthawi yayitali kwa zisindikizo zamakanika. Filimu ya hydrodynamic imapereka mafuta, kuchepetsa kukangana ndi kuwonongeka. Komabe, kukangana kumapangabe kutentha pamalo olumikizirana. Pa zisindikizo zamafakitale, kuchuluka kwa kutentha kwachizolowezi kumayambira pa 10-100 kW/m². Pa ntchito zapamwamba, kuchuluka kwa kutentha kumatha kufika pa 1000 kW/m².

Kutulutsa kutentha kochokera ku kukangana ndiye gwero lalikulu. Kumachitika pamalo otsekerera. Chiŵerengero cha kutentha (Q) chimawerengera ngati μ × N × V × A (komwe μ ndiye coefficient ya kukangana, N ndiye mphamvu yachibadwa, V ndiye liwiro, ndipo A ndiye malo olumikizirana). Kutentha komwe kumapangidwa kumafalikira pakati pa nkhope zozungulira ndi zosakhazikika kutengera momwe zimakhalira kutentha. Kutentha kwa viscous shear kumapanganso kutentha. Njirayi imaphatikizapo kupsinjika kwa shear m'mafilimu opyapyala amadzimadzi. Imawerengera ngati Q = τ × γ × V (kupsinjika kwa shear × kuchuluka kwa shear × voliyumu) ​​ndipo imakhala yofunika kwambiri m'madzimadzi okhala ndi kukhuthala kwakukulu kapena ntchito zothamanga kwambiri.

Kulinganiza bwino kwa balance ndi chinthu chofunikira kwambiri pakupanga kuti muchepetse kutentha pamene liwiro la shaft likukwera. Kafukufuku woyeserera pa zisindikizo za nkhope zamakina adawonetsa kuti kuphatikiza kwa balance ratio ndi kupanikizika kwa nthunzi kumakhudza kwambiri kuchuluka kwa kuwonongeka ndi kutayika kwa kukangana. Makamaka, pansi pa mikhalidwe ya balance ratio yapamwamba, mphamvu ya kukangana pakati pa nkhope za zisindikizo inali yofanana ndi mphamvu ya nthunzi. Kafukufukuyu adapezanso kuti kuchepa kwakukulu kwa mphamvu ya kukangana ndi kuchuluka kwa kukangana kumatha kuchitika ndi kuchuluka kochepa kwa mphamvu.

Mitundu ndi Kusankha kwa Zisindikizo Zamakina

Mitundu Yodziwika ya Zisindikizo Zamakina

Zisindikizo zamakina zimapezeka m'mapangidwe osiyanasiyana, chilichonse chikugwirizana ndi ntchito zinazake.Zisindikizo za PusherGwiritsani ntchito mphete za elastomer O zomwe zimayendera pa shaft kuti zigwirizane. Mosiyana ndi zimenezi,zisindikizo zosakakamizaGwiritsani ntchito elastomer kapena zitsulo zotsekemera, zomwe zimasinthasintha m'malo mosuntha. Kapangidwe kameneka kamapangitsa kuti zotsekera zosagwiritsa ntchito mphamvu zikhale zabwino kwambiri pamadzi otentha kapena ofunda, komanso malo owononga kapena otentha kwambiri, nthawi zambiri omwe amawononga pang'ono.

Kusiyana kwina kuli pakati pazisindikizo za katirijindizisindikizo za zigawo. Chisindikizo cha makina a katiriji ndi chipangizo chomwe chimasonkhanitsidwa kale, chokhala ndi zigawo zonse zosindikizira mkati mwa nyumba imodzi. Kapangidwe kameneka kamathandiza kuyika mosavuta ndikuchepetsa chiopsezo cha zolakwika. Komabe, zisindikizo za zigawo zimakhala ndi zinthu zomwe zimasonkhanitsidwa m'munda, zomwe zingayambitse kuyika kovuta kwambiri komanso chiopsezo chachikulu cha zolakwika. Ngakhale zisindikizo za katiriji zimakhala ndi mtengo wokwera kwambiri, nthawi zambiri zimapangitsa kuti kukonza kuchepe komanso kuchepetsa nthawi yogwira ntchito.

Zisindikizo zimagawidwanso m'magulu awiri: zokhazikika kapena zosakhazikika. Zisindikizo zokhazikika zimasamalira kusiyana kwa kuthamanga kwamphamvu ndipo zimasunga malo okhazikika a nkhope ya chisindikizo, zomwe zimapangitsa kuti zikhale zoyenera kugwiritsidwa ntchito mofunikira komanso zida zothamanga kwambiri. Zimapereka mphamvu yogwiritsira ntchito bwino komanso nthawi yayitali ya zida. Zisindikizo zosakhazikika zimakhala ndi kapangidwe kosavuta ndipo ndizotsika mtengo. Ndi chisankho chothandiza pakugwiritsa ntchito kosavuta monga mapampu amadzi ndi machitidwe a HVAC, komwe kudalirika ndikofunikira koma kupanikizika kwakukulu sikofunikira.

Zinthu Zofunikira Posankha Zisindikizo Zamakina

Kusankha chisindikizo choyenera cha makina kumafuna kuganizira mosamala zinthu zingapo zofunika.ntchitoPayokha imapanga zisankho zambiri, kuphatikizapo kukhazikitsa zida ndi njira zogwirira ntchito. Mwachitsanzo, mapampu a ANSI opitilira kugwira ntchito amasiyana kwambiri ndi mapampu a sump service okhazikika, ngakhale ndi madzi omwewo.

ZailesiAmatanthauza madzi omwe akhudzana ndi chisindikizo. Mainjiniya ayenera kuwunika mozama zinthu zomwe zili mumadzi ndi mtundu wake. Amafunsa ngati mtsinje wopopedwa uli ndi zinthu zolimba kapena zodetsa monga H2S kapena ma chloride. Amaganiziranso kuchuluka kwa mankhwalawo ngati ndi yankho, komanso ngati akulimba pansi pa zovuta zilizonse zomwe zingachitike. Pazinthu zoopsa kapena zomwe sizili ndi mafuta oyenera, nthawi zambiri pamafunika kutsuka kwakunja kapena zisindikizo zopanikizika kawiri.

Kupanikizikandiliwirondi magawo awiri ofunikira ogwirira ntchito. Kupanikizika mkati mwa chipinda chosindikizira sikuyenera kupitirira malire a kuthamanga kwa chisindikizo. Zimakhudzanso malire osinthasintha (PV) kutengera zida zosindikizira ndi mawonekedwe amadzimadzi. Kuthamanga kumakhudza kwambiri magwiridwe antchito a chisindikizo, makamaka pamlingo wokwera kwambiri. Kuthamanga kwakukulu kumabweretsa mphamvu zozungulira pa akasupe, zomwe zimapangitsa mapangidwe a akasupe osasuntha.

Makhalidwe a madzimadzi, kutentha kwa ntchito, ndi kupanikizika zimakhudza mwachindunji kusankha chisindikizo. Madzi okhuthala amachititsa kuti nkhope za chisindikizo ziwonongeke, pomwe madzi owononga amawononga zinthu za chisindikizo. Kutentha kwambiri kumapangitsa kuti zinthu zikule, zomwe zingayambitse kutuluka kwa madzi. Kutentha kochepa kumapangitsa kuti zinthuzo zikhale zofooka. Kupsinjika kwakukulu kumawonjezera kupsinjika pa nkhope za chisindikizo, zomwe zimapangitsa kuti chisindikizo chikhale cholimba.

Kugwiritsa Ntchito Zisindikizo Zamakina

Zisindikizo zamakina zimagwiritsidwa ntchito kwambiri m'mafakitale osiyanasiyana chifukwa cha ntchito yawo yofunika kwambiri popewa kutayikira kwa madzi ndikuwonetsetsa kuti ntchito ikuyenda bwino.

In kuchotsera mafuta ndi gasi, zisindikizo ndizofunikira kwambiri pa mapampu omwe amagwira ntchito m'mikhalidwe yovuta kwambiri. Zimaletsa kutuluka kwa madzi a hydrocarbon, kuonetsetsa kuti chitetezo ndi kutsata malamulo a chilengedwe. Zisindikizo zapadera m'mapampu a pansi pa nyanja zimapirira kuthamanga kwambiri ndi madzi a m'nyanja owononga, zomwe zimachepetsa chiopsezo cha chilengedwe komanso nthawi yogwira ntchito.

Kukonza ndi kusunga mankhwaladalirani zisindikizo kuti mupewe kutuluka kwa zinthu zoopsa komanso zowononga. Kutuluka kumeneku kungayambitse ngozi kapena kutayika kwa zinthu. Zisindikizo zamakono zopangidwa ndi zinthu zosagwira dzimbiri monga ceramic kapena carbon zimapezeka kwambiri m'ma reactor ndi m'matanki osungiramo zinthu. Zimawonjezera nthawi ya zida ndikusunga ukhondo wa zinthuzo.

Kusamalira madzi ndi zinyalalaMalo osungiramo zinthu amagwiritsa ntchito zisindikizo m'mapampu ndi zosakaniza kuti asunge madzi ndi mankhwala. Zisindikizo zimenezi zimapangidwa kuti zizigwira ntchito mosalekeza komanso kuti zisawonongeke ndi zinthu zina. M'mafakitale ochotsa mchere m'madzi, zisindikizo ziyenera kupirira kupsinjika kwakukulu komanso mikhalidwe yamchere, zomwe zimaika patsogolo kulimba kuti ntchito zigwire bwino ntchito komanso kuti zitsatire malamulo okhudza chilengedwe.

Madzi oundana ndi madzi owononga amabweretsa mavuto enaake. Tinthu toundana timathandizira kuwonongeka kwa malo otsekereza. Kugwira ntchito kwa mankhwala a madzi ena kumawononga zinthu zotsekereza. Mayankho akuphatikizapo ma elastomer apamwamba ndi ma thermoplastics omwe ali ndi kukana kwabwino kwa mankhwala. Amaphatikizaponso zinthu zoteteza monga makina otchinga madzi kapena zowongolera zachilengedwe.

Zisindikizo za Makina zimaletsa kutuluka kwa madzi mwa kupanga chotchinga chosinthasintha pakati pa nkhope zozungulira ndi zosasuntha. Zimathandiza kusunga ndalama zambiri pokonza ndikuwonjezera nthawi ya zida. Kusankha ndi kusamalira bwino kumaonetsetsa kuti zikhalitsa nthawi yayitali, nthawi zambiri kupitirira zaka zitatu, zomwe zimapangitsa kuti pampu izigwira ntchito bwino.

FAQ

Kodi ntchito yaikulu ya chisindikizo cha makina ndi chiyani?

Zisindikizo zamakinaAmaletsa kutuluka kwa madzi mozungulira shaft yozungulira ya pampu. Amapanga chotchinga chosinthika, kuonetsetsa kuti pampu ikugwira ntchito bwino komanso motetezeka.

Kodi zigawo zazikulu za chisindikizo cha makina ndi ziti?

Zigawo zazikulu zimaphatikizapo nkhope zozungulira komanso zosasuntha, zinthu zina zotsekera,njira zamasika, ndi kusonkhana kwa mbale ya gland. Chigawo chilichonse chimagwira ntchito yofunika kwambiri.

Nchifukwa chiyani filimu ya hydrodynamic ndi yofunika mu zisindikizo zamakina?

Filimu ya hydrodynamic imapaka mafuta nkhope za seal, zomwe zimachepetsa kukangana ndi kuwonongeka. Imagwiranso ntchito ngati chotchinga, kuteteza kutuluka kwa madzi ndikuwonjezera nthawi ya moyo wa seal.