Compressors yog ib feem tseem ceeb ntawm yuav luag txhua qhov chaw tsim khoom. Feem ntau hu ua lub plawv ntawm tej huab cua los yog roj system, cov cuab tam yuav tsum tau tshwj xeeb saib xyuas, tshwj xeeb tshaj yog lawv lubrication. Yuav kom nkag siab txog lub luag haujlwm tseem ceeb ntawm lubrication plays hauv compressors, koj yuav tsum xub nkag siab txog lawv txoj haujlwm nrog rau cov teebmeem ntawm lub cev ntawm lub lubricant, uas lubricant xaiv thiab cov kev ntsuam xyuas roj yuav tsum tau ua.
● Compressor Hom thiab Kev Ua Haujlwm
Muaj ntau hom compressor sib txawv, tab sis lawv lub luag haujlwm tseem ceeb yuav luag ib txwm muaj. Compressors yog tsim los ua kom lub siab ntawm cov roj los ntawm kev txo nws cov ntim tag nrho. Hauv cov ntsiab lus yooj yim, ib tus tuaj yeem xav txog lub compressor li lub twj tso kua mis zoo li roj. Qhov kev ua haujlwm yog qhov zoo ib yam, nrog qhov sib txawv tseem ceeb yog tias lub compressor txo qhov ntim thiab txav roj los ntawm lub kaw lus, thaum lub twj tso kua mis tsuas yog nias thiab thauj cov kua los ntawm qhov system.
Compressors tuaj yeem muab faib ua ob pawg: kev hloov pauv zoo thiab dynamic. Teb, diaphragm thiab reciprocating compressors poob nyob rau hauv qhov zoo-tsav kev faib tawm. Teb compressors ua haujlwm los ntawm kev yuam cov roj rau hauv qhov chaw me me los ntawm cov ntsia hlau, lobes lossis vanes, thaum lub diaphragm compressors ua haujlwm los ntawm compressing roj los ntawm kev txav ntawm daim nyias nyias. Reciprocating compressors compress cov roj los ntawm lub piston lossis series ntawm pistons uas tau tsav los ntawm lub crankshaft.
Centrifugal, mix-flow thiab axial compressors yog nyob rau hauv qeb dynamic. Lub centrifugal compressor ua haujlwm los ntawm compressing roj siv lub rotating disk nyob rau hauv lub tsev tsim. Ib qho sib xyaw-flow compressor ua haujlwm zoo ib yam li lub centrifugal compressor tab sis tsav ntws axially es tsis yog radially. Axial compressors tsim compression los ntawm ntau cov airfoils.
● Cov teebmeem ntawm Lubricants
Ua ntej xaiv lub compressor lubricant, ib qho ntawm cov ntsiab lus tseem ceeb uas yuav tsum tau xav txog yog hom kev lim dej uas tuaj yeem raug rau thaum ua haujlwm. Feem ntau, lubricant stressors nyob rau hauv compressors muaj xws li ya raws, huab cua kub, compressed gas thiab cua, hlau hais, roj solubility, thiab kub tawm qhov chaw.
Nco ntsoov tias thaum cov roj compressed, nws tuaj yeem muaj kev cuam tshuam tsis zoo rau cov roj nplua nyeem thiab ua rau muaj kev poob qis hauv viscosity nrog rau evaporation, oxidation, carbon depositing thiab condensation los ntawm noo noo tsub zuj zuj.
Thaum koj paub txog cov kev txhawj xeeb tseem ceeb uas yuav qhia tau rau cov roj nplua nyeem, koj tuaj yeem siv cov ntaub ntawv no los nqaim koj cov kev xaiv rau ib qho zoo tagnrho compressor lubricant. Cov yam ntxwv ntawm tus neeg sib tw muaj zog lubricant yuav suav nrog oxidation stability zoo, tiv thaiv hnav thiab corrosion inhibitor additives, thiab demulsibility zog. Synthetic base stocks kuj tseem ua tau zoo dua nyob rau hauv qhov kub thiab txias.
● Lubricant Xaiv
Xyuas kom koj muaj cov roj nplua nyeem tsim nyog yuav yog qhov tseem ceeb hauv kev noj qab haus huv ntawm lub compressor. Thawj kauj ruam yog siv cov lus pom zoo los ntawm cov khoom siv thawj zaug (OEM). Compressor lubricant viscosities thiab cov khoom sab hauv uas tau lubricated tuaj yeem sib txawv raws li hom compressor. Cov neeg tsim khoom cov lus qhia tuaj yeem muab qhov pib zoo.
Tom ntej no, xav txog cov roj compressed, raws li nws muaj peev xwm cuam tshuam rau lub lubricant. Cua compression tuaj yeem ua rau muaj teeb meem nrog cov roj nplua nyeem siab. Hydrocarbon gases zoo li yaj cov roj nplua nyeem thiab, nyob rau hauv lem, maj mam txo cov viscosity.
Chemically inert gases xws li carbon dioxide thiab ammonia yuav hnov mob nrog cov roj nplua nyeem thiab txo cov viscosity thiab tsim cov xab npum hauv lub cev. Chemically active gases xws li oxygen, chlorine, sulfur dioxide thiab hydrogen sulfide tuaj yeem tsim tacky deposits los yog ua corrosive heev thaum cov dej noo ntau dhau hauv cov roj nplua nyeem.
Koj yuav tsum tau coj mus rau hauv tus account qhov chaw uas lub compressor lubricant tau raug. Qhov no yuav suav nrog qhov kub thiab txias, kev ua haujlwm kub, ib puag ncig cov pa paug, txawm tias lub compressor nyob hauv thiab npog lossis sab nraud thiab raug huab cua tsis zoo, nrog rau kev lag luam uas nws ua haujlwm.
Compressors nquag siv cov roj ntsha hluavtaws raws li OEM cov lus pom zoo. Cov cuab yeej ua lag luam feem ntau xav tau kev siv lawv lub npe roj nplua nyeem raws li qhov xwm txheej ntawm warranty. Nyob rau hauv cov ntaub ntawv no, tej zaum koj yuav xav tos kom txog thaum tom qab lub warranty lub sij hawm tau tas sij hawm los hloov lub lubricant.
Yog tias koj daim ntawv thov tam sim no siv cov roj nplua nyeem raws li cov ntxhia, hloov mus rau cov khoom siv hluavtaws yuav tsum yog qhov tseeb, vim qhov no feem ntau yuav kim dua. Tau kawg, yog tias koj cov ntawv txheeb xyuas roj tau qhia txog kev txhawj xeeb tshwj xeeb, cov roj ntsha hluavtaws tuaj yeem yog qhov kev xaiv zoo. Txawm li cas los xij, nco ntsoov tias koj tsis yog tsuas yog hais txog cov tsos mob ntawm qhov teeb meem tab sis daws cov hauv paus hauv paus hauv qhov system.
Cov roj ntsha hluavtaws twg ua rau muaj kev nkag siab zoo tshaj plaws hauv daim ntawv thov compressor? Feem ntau, polyalkylene glycols (PAGs), polyalphaolefins (POAs), qee cov diesters thiab polyolesters yog siv. Qhov twg ntawm cov khoom siv los xaiv yuav yog nyob ntawm cov roj nplua nyeem uas koj tab tom hloov los ntawm nrog rau daim ntawv thov.
Featuring oxidation tsis kam thiab lub neej ntev, polyalphaolefins feem ntau yog qhov tsim nyog hloov rau cov roj ntxhia. Polyalkylene glycols uas tsis yog dej-soluble muaj cov solubility zoo los pab kom cov compressors huv si. Qee cov esters muaj qhov zoo dua solubility dua li PAGs tab sis tuaj yeem tawm tsam nrog cov dej noo ntau hauv lub cev.
| Tus lej | Parameter | Standard Test Method | Chav tsev | Nominal | Ceev faj | Tseem ceeb |
| Lubricant Properties Analysis | ||||||
| 1 | Viscosity & @ 40 ℃ | Qauv: ASTM 0445 | cSt | Cov roj tshiab | Nominal +5% /-5% | Nominal + 10% / - 10% |
| 2 | Acid Number | ASTM D664 lossis ASTM D974 | mgKOH/g | Cov roj tshiab | Inflection point +0.2 | Inflection point +1.0 |
| 3 | Additive Elements: Ba, B, Ca, Mg, Mo, P, Zn | ASTM D 518 S | ppm ua | Cov roj tshiab | Nominal +/- 10% | Nominal +/- 25% |
| 4 | Oxidation | ASTM E2412 FTIR | Absorbance / 0.1 hli | Cov roj tshiab | Raws li kev txheeb cais thiab siv los ua cov cuab yeej tshuaj ntsuam xyuas | |
| 5 | Nitration | ASTM E2412 FTIR | Absorbance / 0.1 hli | Cov roj tshiab | Statistically ba$ed thiab u$ed a$ ib scceenintf cuab tam | |
| 6 | Antioxidant RUL | TIAB SA 6810 | Feem pua | Cov roj tshiab | Nominal -50% | Nominal -80% |
| Varnish Potential Membrane Patch Colorimetry | ASTM D7843 Cov Khoom Siv Hluav Taws Xob | 1-100 scale (1 yog qhov zoo tshaj) | <20 | 35 | 50 | |
| Lubricant Contamination Analysis | ||||||
| 7 | Qhov tshwm sim | ASTM D 4176 Cov khoom lag luam | Kev tshuaj xyuas qhov muag pom rau dej dawb thiab paniculate | |||
| 8 | Moisture theem | ASTM E2412 FTIR | Feem pua | Hom phiaj | 0.03 ib | 0.2 |
| Crackle | rhiab heev mus rau 0.05% thiab siv los soj ntsuam cov cuab yeej | |||||
| Kev zam | Moisture theem | ASTM 06304 Karl Fischer | ppm ua | Hom phiaj | 300 | 2.000 |
| 9 | Particle suav | TS EN ISO 4406: 99 | ISO Code | Hom phiaj | Lub hom phiaj +1 ntau tus lej | Lub hom phiaj +3 ntau tus lej |
| Kev zam | Patch Test | Txoj Kev Muaj Cai | Siv rau kev txheeb xyuas cov khib nyiab los ntawm kev kuaj pom | |||
| 10 | Contaminant Elements: Si, Ca, Me, AJ, thiab lwm yam. | ASTM DS 185 185 | ppm ua | <5* | 6-20 * | > 20 * |
| * Nyob ntawm cov kab mob, daim ntawv thov thiab ib puag ncig | ||||||
| Lubricant Wear Debris Analysis (Ceeb Toom: Kev nyeem ntawv txawv txav yuav tsum ua raws li kev soj ntsuam ferrography) | ||||||
| 11 | Hnav Debris Elements: Fe, Cu, Cr, Ai, Pb. Nim, Sn | ASTM D 518 S | ppm ua | Historic nruab nrab | Nominal + SD | Nominal +2 SD |
| Kev zam | Ferrous Density | Txoj Kev Muaj Cai | Txoj Kev Muaj Cai | Hirtoric nruab nrab | Nominal + S0 | Nominal +2 SD |
| Kev zam | PQ Index | PQ 90 | Index | Historic nruab nrab | Nominal + SD | Nominal +2 SD |
Ib qho piv txwv ntawm kev ntsuas roj ntsuas cov slates thiab lub tswb txwv rau centrifugal compressors.
● Kev Ntsuam Xyuas Roj
Ntau qhov kev ntsuam xyuas tuaj yeem ua tau ntawm cov qauv roj, yog li nws yog qhov yuav tsum tau ua qhov tseem ceeb thaum xaiv cov kev xeem no thiab cov qauv ntsuas zaus. Kev ntsuam xyuas yuav tsum npog peb yam kev tshuaj ntsuam xyuas roj: cov khoom siv roj nplua nyeem, muaj cov kab mob hauv lub tshuab lubrication thiab cov khoom siv khib nyiab los ntawm lub tshuab.
Nyob ntawm seb hom compressor, tej zaum yuav muaj kev hloov pauv me ntsis hauv qhov kev sim slate, tab sis feem ntau nws yog ib qho uas pom viscosity, kev tsom xam, Fourier transform infrared (FTIR) spectroscopy, acid naj npawb, kua roj vanish muaj peev xwm, rotating siab hlab ntsha oxidation test (RPVOT. ) thiab cov kev ntsuam xyuas demulsibility pom zoo rau kev ntsuam xyuas cov roj nplua nyeem cov kua dej.
Kev ntsuam xyuas cov kua paug paug rau cov compressors yuav suav nrog cov tsos, FTIR thiab kev tshuaj xyuas lub ntsiab lus, thaum lub sijhawm ib txwm ua los ntawm kev hnav cov khib nyiab yuav yog qhov kev tshuaj ntsuam xyuas. Ib qho piv txwv ntawm kev ntsuas roj ntsuas cov slates thiab lub tswb txwv rau centrifugal compressors tau qhia saum toj no.
Vim tias qee qhov kev ntsuam xyuas tuaj yeem ntsuas ntau qhov kev txhawj xeeb, qee qhov yuav tshwm sim hauv ntau pawg. Piv txwv li, qhov kev ntsuam xyuas lub hauv paus tuaj yeem ntes cov txiaj ntsig ntxiv los ntawm cov khoom siv kua dej, thaum cov khoom seem ntawm cov khoom pov tseg los yog FTIR tuaj yeem txheeb xyuas oxidation lossis noo noo raws li cov kua paug.
Tswb txwv feem ntau raug teeb tsa los ntawm lub chaw kuaj mob, thiab cov nroj tsuag feem ntau yeej tsis nug lawv qhov zoo. Koj yuav tsum tau tshuaj xyuas thiab xyuas kom meej tias cov kev txwv no tau txhais kom phim koj lub hom phiaj kev ntseeg siab. Thaum koj tsim koj qhov kev pab cuam, tej zaum koj yuav xav xav hloov cov kev txwv. Feem ntau, lub tswb txwv tsis pub pib siab me ntsis thiab hloov mus rau lub sijhawm vim muaj kev ua kom huv huv ntau dua, pom thiab tswj kev sib kis.
● Nkag siab txog Compressor Lubrication
Hais txog lawv cov lubrication, compressors tuaj yeem zoo li nyuaj. Qhov zoo dua koj thiab koj pab neeg nkag siab txog kev ua haujlwm ntawm compressor, qhov cuam tshuam ntawm lub kaw lus ntawm lub lubricant, uas yuav tsum tau xaiv cov roj lubricating thiab cov kev ntsuam xyuas roj yuav tsum tau ua, qhov zoo dua koj txoj hauv kev los tswj thiab txhim kho kev noj qab haus huv ntawm koj cov cuab yeej.
Post lub sij hawm: Nov-16-2021