Cov tshuab compressors yog ib feem tseem ceeb ntawm yuav luag txhua lub chaw tsim khoom. Feem ntau hu ua lub plawv ntawm txhua lub tshuab cua lossis roj, cov khoom no xav tau kev saib xyuas tshwj xeeb, tshwj xeeb tshaj yog lawv cov roj nplua nyeem. Yuav kom nkag siab txog lub luag haujlwm tseem ceeb ntawm cov roj nplua nyeem hauv cov tshuab compressors, koj yuav tsum xub nkag siab txog lawv txoj haujlwm thiab cov teebmeem ntawm lub kaw lus rau cov roj nplua nyeem, xaiv cov roj nplua nyeem twg thiab yuav tsum tau ua cov kev ntsuam xyuas roj twg.
● Hom Compressor thiab Kev Ua Haujlwm
Muaj ntau hom compressor sib txawv, tab sis lawv lub luag haujlwm tseem ceeb yuav luag zoo ib yam. Cov compressors yog tsim los ua kom lub zog ntawm cov roj los ntawm kev txo nws qhov ntim tag nrho. Hauv cov lus yooj yim, ib tug tuaj yeem xav txog lub compressor zoo li lub twj tso kua roj. Lub luag haujlwm yog qhov zoo ib yam, nrog rau qhov sib txawv tseem ceeb yog tias lub compressor txo qhov ntim thiab txav cov roj los ntawm lub kaw lus, thaum lub twj tso kua tsuas yog ua kom muaj zog thiab thauj cov kua los ntawm lub kaw lus.
Cov compressors muaj peev xwm muab faib ua ob pawg dav dav: positive displacement thiab dynamic. Rotary, diaphragm thiab reciprocating compressors poob rau hauv qhov kev faib tawm positive-displacement. Rotary compressors ua haujlwm los ntawm kev yuam cov pa roj mus rau hauv qhov chaw me me los ntawm cov ntsia hlau, lobes lossis vanes, thaum diaphragm compressors ua haujlwm los ntawm kev nias cov pa roj los ntawm kev txav ntawm daim nyias nyias. Reciprocating compressors nias cov pa roj los ntawm lub piston lossis ntau lub pistons tsav los ntawm lub crankshaft.
Cov tshuab compressor centrifugal, mixed-flow thiab axial yog nyob rau hauv pawg dynamic. Lub tshuab compressor centrifugal ua haujlwm los ntawm kev nias cov roj siv lub disk tig hauv lub tsev uas tsim. Lub tshuab compressor mixed-flow ua haujlwm zoo ib yam li lub tshuab compressor centrifugal tab sis tsav cov dej ntws axially es tsis yog radially. Axial compressors tsim kev nias los ntawm ntau lub airfoils.
● Cov teebmeem rau cov roj nplua nyeem
Ua ntej xaiv cov roj nplua nyeem compressor, ib qho ntawm cov yam tseem ceeb uas yuav tsum xav txog yog hom kev nyuaj uas cov roj nplua nyeem yuav raug thaum siv. Feem ntau, cov kev nyuaj siab ntawm cov roj nplua nyeem hauv cov compressors suav nrog cov dej noo, cua sov heev, cov pa roj thiab cua compressed, cov hlau me me, cov roj yaj tau, thiab cov nplaim kub.
Nco ntsoov tias thaum cov roj raug nias, nws tuaj yeem muaj cov teebmeem tsis zoo rau cov roj nplua nyeem thiab ua rau muaj kev poob qis ntawm viscosity nrog rau kev ua pa, oxidation, carbon depositing thiab condensation los ntawm cov dej noo sib sau ua ke.
Thaum koj paub txog cov teeb meem tseem ceeb uas yuav tshwm sim rau cov roj nplua nyeem, koj tuaj yeem siv cov ntaub ntawv no los xaiv cov roj nplua nyeem zoo tshaj plaws. Cov yam ntxwv ntawm cov roj nplua nyeem zoo yuav suav nrog kev ruaj khov oxidation zoo, cov tshuaj ntxiv tiv thaiv kev hnav thiab kev tiv thaiv xeb, thiab cov khoom demulsibility. Cov khoom siv hluavtaws kuj tseem yuav ua tau zoo dua hauv qhov kub thiab txias dav dua.
● Kev Xaiv Cov Roj Nqus
Kev xyuas kom koj muaj cov roj nplua nyeem kom zoo yuav yog qhov tseem ceeb rau kev noj qab haus huv ntawm lub compressor. Kauj ruam thawj zaug yog siv cov lus qhia los ntawm cov chaw tsim khoom siv qub (OEM). Cov viscosities ntawm cov roj nplua nyeem compressor thiab cov khoom sab hauv uas tau muab roj nplua nyeem tuaj yeem sib txawv ntau nyob ntawm hom compressor. Cov lus qhia ntawm cov chaw tsim khoom tuaj yeem muab qhov pib zoo.
Tom ntej no, xav txog cov roj uas raug nias, vim nws tuaj yeem cuam tshuam rau cov roj nplua nyeem. Kev nias cua yuav ua rau muaj teeb meem nrog qhov kub ntawm cov roj nplua nyeem. Cov pa roj hydrocarbon feem ntau yaj cov roj nplua nyeem thiab, ua rau, maj mam txo qhov viscosity.
Cov pa roj uas tsis muaj zog xws li carbon dioxide thiab ammonia yuav ua rau cov roj nplua nyeem tsis sib haum thiab ua rau cov viscosity txo qis thiab ua rau cov xab npum hauv lub cev. Cov pa roj uas muaj zog xws li oxygen, chlorine, sulfur dioxide thiab hydrogen sulfide tuaj yeem ua rau cov khoom sib xyaws lossis ua rau xeb heev thaum muaj dej ntau dhau hauv cov roj nplua nyeem.
Koj yuav tsum xav txog qhov chaw uas lub roj compressor raug rau. Qhov no yuav suav nrog qhov kub thiab txias, qhov kub ua haujlwm, cov pa phem nyob ib puag ncig, seb lub compressor puas nyob hauv thiab npog lossis sab nraud thiab raug huab cua phem, nrog rau kev lag luam uas nws siv.
Cov tshuab compressors feem ntau siv cov roj nplaum hluavtaws raws li OEM cov lus pom zoo. Cov chaw tsim khoom siv feem ntau xav kom siv lawv cov roj nplaum uas muaj npe ua ib qho kev cai ntawm kev lees paub. Hauv cov xwm txheej no, koj yuav xav tos kom txog thaum lub sijhawm lav tas sij hawm kom hloov cov roj nplaum.
Yog tias koj daim ntawv thov tam sim no siv cov roj nplua nyeem uas muaj cov minerals ua, kev hloov mus siv cov roj hluavtaws yuav tsum tau ua kom raug, vim tias qhov no feem ntau yuav kim dua. Tau kawg, yog tias koj cov ntawv qhia txog kev tshuaj xyuas roj qhia txog kev txhawj xeeb tshwj xeeb, cov roj nplua nyeem hluavtaws tuaj yeem yog qhov kev xaiv zoo. Txawm li cas los xij, nco ntsoov tias koj tsis yog tsuas yog daws cov tsos mob ntawm qhov teeb meem tab sis daws cov hauv paus hauv lub cev.
Cov roj nplaum twg uas siv tau zoo tshaj plaws rau kev siv lub tshuab compressor? Feem ntau, siv cov polyalkylene glycols (PAGs), polyalphaolefins (POAs), qee cov diesters thiab polyolesters. Cov roj nplaum twg uas koj yuav xaiv yuav nyob ntawm seb koj siv cov roj nplaum twg thiab seb koj siv li cas.
Feem ntau, polyalphaolefins yog cov khoom siv hloov pauv zoo rau cov roj av. Cov polyalkylene glycols uas tsis yaj hauv dej muaj kev yaj zoo los pab kom cov compressors huv. Qee cov esters muaj kev yaj zoo dua li PAGs tab sis tuaj yeem tawm tsam nrog cov dej noo ntau dhau hauv lub cev.
| Tus lej | Cov Qauv | Txoj Kev Ntsuas Txheem | Chav | Nominal | Kev ceev faj | Tseem ceeb heev |
| Kev Tshawb Fawb Txog Cov Khoom Siv Lubricant | ||||||
| 1 | Viscosity & @ 40 ℃ | ASTM 0445 | cSt | Cov roj tshiab | Nominal +5%/-5% | Nominal +10%/-10% |
| 2 | Tus lej kua qaub | ASTM D664 lossis ASTM D974 | mgKOH/g | Cov roj tshiab | Qhov chaw hloov pauv +0.2 | Lub ntsiab lus hloov pauv +1.0 |
| 3 | Cov Khoom Ntxiv: Ba, B, Ca, Mg, Mo, P, Zn | ASTM D518S | ppm | Cov roj tshiab | Nominal +/- 10% | Nominal +/- 25% |
| 4 | Kev ua kom tawv nqaij tawv | ASTM E2412 FTIR | Kev nqus dej /0.1 hli | Cov roj tshiab | Raws li kev suav lej thiab siv ua cov cuab yeej tshuaj xyuas | |
| 5 | Kev ntsuas nitration | ASTM E2412 FTIR | Kev nqus dej /0.1 hli | Cov roj tshiab | Cov cuab yeej ntsuas thiab ntsuas raws li kev suav lej | |
| 6 | Cov tshuaj antioxidant RUL | ASTMD6810 | Feem pua | Cov roj tshiab | Nominal -50% | Nominal -80% |
| Kev ntsuas xim ntawm cov xim pleev xim rau daim nyias nyias | ASTM D7843 | 1-100 nplai (1 yog qhov zoo tshaj plaws) | <20 | 35 | 50 | |
| Kev Tshuaj Xyuas Txog Kev Ua Phem Ntawm Cov Roj Roj | ||||||
| 7 | Qhov tsos | ASTM D4176 | Kev tshuaj xyuas qhov muag pom rau dej dawb thiab paniculate | |||
| 8 | Qib dej noo | ASTM E2412 FTIR | Feem pua | Lub hom phiaj | 0.03 | 0.2 |
| Crackle | Rhiab txog li 0.05% thiab siv ua cuab yeej tshuaj ntsuam xyuas | |||||
| Kev zam | Qib dej noo | ASTM 06304 Karl Fischer | ppm | Lub hom phiaj | 300 | 2.000 |
| 9 | Suav cov khoom me me | ISO 4406: 99 | ISO Code | Lub hom phiaj | Tus lej ntawm lub hom phiaj +1 | Lub hom phiaj +3 tus lej ntau yam |
| Kev zam | Kev Ntsuas Kho | Cov Txheej Txheem Tshwj Xeeb | Siv rau kev kuaj xyuas cov khib nyiab los ntawm kev pom | |||
| 10 | Contaminant Elements: Si, Ca, Me, AJ, thiab lwm yam. | ASTM DS 185 | ppm | <5* | 6-20* | >20* |
| * Nyob ntawm cov kuab paug, daim ntawv thov thiab ib puag ncig | ||||||
| Kev Tshuaj Xyuas Cov Khoom Siv Uas Siv Lubricant (Ceeb Toom: kev nyeem tsis zoo yuav tsum tau ua raws li kev tshuaj xyuas ferrography) | ||||||
| 11 | Cov Khoom Siv Pov Tseg: Fe, Cu, Cr, Ai, Pb. Ni, Sn | ASTM D518S | ppm | Qhov Nruab Nrab Keeb Kwm | Nominal + SD | Nominal +2 SD |
| Kev zam | Ferrous Ceev | Cov Txheej Txheem Tshwj Xeeb | Cov Txheej Txheem Tshwj Xeeb | Qhov Nruab Nrab ntawm Hirtoric | Nominal + S0 | Nominal +2 SD |
| Kev zam | PQ Index | PQ90 | Cov Ntawv Qhia | Qhov Nruab Nrab Keeb Kwm | Nominal + SD | Nominal +2 SD |
Ib qho piv txwv ntawm cov roj kuaj cov slates thiab cov kev txwv ceeb toom rau centrifugal compressors.
● Kev Ntsuas Roj
Muaj ntau yam kev sim ua tau rau cov qauv roj, yog li nws yog ib qho tseem ceeb uas yuav tsum ua tib zoo thaum xaiv cov kev sim no thiab cov zaus kuaj. Kev sim yuav tsum suav nrog peb pawg kev tshuaj xyuas roj tseem ceeb: cov yam ntxwv ntawm cov kua roj, qhov muaj cov khoom tsis huv hauv lub tshuab lubrication thiab txhua yam khib nyiab los ntawm lub tshuab.
Nyob ntawm hom compressor, tej zaum yuav muaj kev hloov me ntsis hauv daim ntawv xeem, tab sis feem ntau nws yog ib qho uas pom viscosity, elemental analysis, Fourier transform infrared (FTIR) spectroscopy, acid number, varnish potential, rotating pressure vessel oxidation test (RPVOT) thiab demulsibility tests uas pom zoo rau kev ntsuam xyuas cov khoom ntawm cov roj nplua nyeem.
Kev kuaj cov kua dej uas muaj kuab paug rau cov compressors yuav suav nrog qhov tsos, FTIR thiab kev tshuaj xyuas cov khoom, thaum qhov kev kuaj ib txwm muaj los ntawm qhov pom ntawm cov khib nyiab hnav yuav yog kev tshuaj xyuas cov khoom. Ib qho piv txwv ntawm cov ntawv xeem tshuaj xyuas roj thiab cov kev txwv ceeb toom rau cov compressors centrifugal tau pom saum toj no.
Vim tias qee qhov kev ntsuam xyuas tuaj yeem soj ntsuam ntau yam kev txhawj xeeb, qee qhov yuav tshwm sim hauv ntau pawg sib txawv. Piv txwv li, kev tshuaj xyuas cov khoom me me tuaj yeem ntes cov nqi poob ntxiv los ntawm qhov pom ntawm cov kua dej, thaum cov khoom seem los ntawm kev tshuaj xyuas cov khib nyiab hnav lossis FTIR tuaj yeem txheeb xyuas qhov oxidation lossis dej noo ua cov kua dej tsis huv.
Feem ntau cov kev txwv ntawm lub tswb ceeb toom raug teeb tsa ua qhov tsis tas li los ntawm lub chaw kuaj mob, thiab feem ntau cov nroj tsuag yeej tsis nug lawv qhov zoo. Koj yuav tsum tshuaj xyuas thiab xyuas kom meej tias cov kev txwv no tau txhais kom phim koj lub hom phiaj kev ntseeg tau. Thaum koj tsim koj qhov kev pab cuam, tej zaum koj yuav xav txog kev hloov cov kev txwv. Feem ntau, cov kev txwv ntawm lub tswb ceeb toom pib siab me ntsis thiab hloov pauv raws sijhawm vim muaj kev ua haujlwm ntau dua los ntxuav, lim dej thiab tswj kev ua qias tuaj.
● Kev Nkag Siab Txog Kev Siv Lub Tshuab Nqus Pa Compressor
Hais txog lawv cov roj nplua nyeem, cov compressors yuav zoo li nyuaj me ntsis. Qhov koj thiab koj pab neeg nkag siab zoo dua txog kev ua haujlwm ntawm lub compressor, cov teebmeem ntawm lub kaw lus rau cov roj nplua nyeem, yuav tsum xaiv cov roj nplua nyeem twg thiab yuav tsum kuaj cov roj twg, qhov zoo dua koj txoj hauv kev los tswj thiab txhim kho kev noj qab haus huv ntawm koj cov khoom siv.
Lub sijhawm tshaj tawm: Kaum Ib Hlis-16-2021