Nitrogen generators yog dav siv nyob rau hauv chemical, electronics, zaub mov, thiab metallurgical industries. Txawm hais tias cov khoom siv tuaj yeem ua haujlwm ruaj khov nyob rau lub sijhawm ntev yog nyob ntawm kev teeb tsa thiab kev ua haujlwm kom zoo, nrog rau kev saib xyuas niaj hnub. Kev teeb tsa tsis zoo ua rau muaj teeb meem kev ua haujlwm; sloppy commissioning txo efficiency thiab shortens kev pab lub neej. Kev kos duab los ntawm kev paub dhau los, kab lus no qhia txog cov kauj ruam tseem ceeb hauv kev teeb tsa lub tshuab hluav taws xob nitrogen thiab commissioning, nrog rau cov tswv yim zoo los kuaj xyuas thiab daws cov teeb meem tshwm sim - npaj ua ib qho kev siv rau ntawm - cov kws tsim khoom thiab cov neeg ua haujlwm tu.
Qhov tseem ceeb Installation Checkpoints rau Nitrogen Generators
Kev teeb tsa zoo nkaus li yooj yim, tab sis kev nco me me ua rau muaj teeb meem loj tom qab. Tau txais peb thaj chaw no.
1. Foundation & Clearance
- Pem teb yuav tsum yog theem thiab muaj zog txaus. Cov chav loj loj xav tau lub hauv paus pob zeb kom txiav kev vibration.
- Tawm tsawg kawg yog 1.5m pem hauv ntej thiab sab clearance rau lim hloov thiab ib feem swaps.
- Xyuas qhov chaw overhead ib yam nkaus -koj yuav xav tau chaw rau hoisting thaum hloov adsorbent.
2. Cua Piping
Qhov no yog qhov uas feem ntau tsis ua haujlwm pib.
- Pipe ID yuav tsum tsis pub tsawg tshaj li qhov nkag hauv chav tsev -undersizing starves lub system.
- Nruab ib lub inlet kaw -off valve thiab lim. Muab lub lim kom ze rau ntawm chav tsev li sai tau.
- Ntxuav txhua kab tom qab vuam. Slag thiab hlau chips rhuav tshem valve seals thiab paug adsorbent. Cov kauj ruam no tau hla dhau ntau zaus.
- Txhawb cov kav dej ntawm nws tus kheej. Tsis txhob cia cov yeeb nkab hnyav dai ntawm cov khoom sib txuas.
3. Hluav taws xob & hauv av
- Ua raws cov kab kos raws nraim.
- Yog tias qhov hluav taws xob hloov pauv dhau ± 10%, ntxiv tus tswj hwm.
- Kev tiv thaiv hauv av yuav tsum nyob qis dua 4Ω- tiv thaiv cov neeg ua haujlwm thiab tiv thaiv cov suab nrov los cuam tshuam nrog PLC.
Cov txheej txheem Commissioning thiab Parameter hloov
Lub hom phiaj ntawm kev ua haujlwm yog txhawm rau txheeb xyuas tag nrho cov khoom siv ua haujlwm thiab nqa cov kev ua haujlwm tsis zoo rau hauv qhov tsim nyog.
1. Ua ntej-Pib Daim Ntawv Teev Npe
Ua ntej siv fais fab, ua kom tiav cov tshev nram qab no:
- Tag nrho cov yeeb nkab txuas yog nruj thiab ruaj ntseg;
- Tag nrho cov li qub yog nyob rau hauv lawv qhov chaw ua haujlwm (feem ntau inlet valve kaw, tso valve qhib);
- Tsis siv neeg tso dej ntawm lub tub yees tshuab ziab khaub ncaws thiab cov lim dej ua haujlwm zoo;
- Kev nyab xeeb valve teeb siab tau raug txheeb xyuas;
- Cov ntsuas ntsuas siab, flowmeters, thiab lwm yam twj paj nruag ntawm adsorption towers nyeem xoom thiab muaj qhov sib piv.
2. Lub Sijhawm Lub Sijhawm thiab Kev Kub Siab Valve
Lub sijhawm hloov lub sijhawm yog lub hauv paus ntawm lub siab viav vias adsorption (PSA) nitrogen tiam. Lub sij hawm sib txawv ncaj qha cuam tshuam cov khoom purity thiab tso zis. Thaum ua haujlwm, ua tib zoo mloog rau:
- Txawm hais tias lub sij hawm sib npaug ntawm qhov sib npaug txaus txaus- thaum kawg ntawm kev sib npaug, qhov siab ntawm ob lub yees yuav tsum sib npaug;
- Lub sij hawm adsorption yuav tsum tau hloov kho raws li qhov yuav tsum tau ua purity -ntev lub sij hawm muab purity ntau dua tab sis txo cov zis;
- Cov pa hluav taws xob qhib thiab kaw lub sijhawm yuav tsum yog qhov tseeb - cov pa tawm tsis tiav degrades kev tsim kho dua tshiab.
Kev khiav hauj lwm siab yog feem ntau teem ntawm 0.6 thiab 0.8 MPa (model-nyob ntawm seb). Tsis tshua muaj adsorption efficiency; siab dhau tsub kom lub zog noj thiab shortens valve lub neej.
3. Purity thiab Flow Adjustment
Ua kom lub zog ntawm lub ntsuas ntsuas thiab saib xyuas cov ntsiab lus oxygen nyeem. Rau qhov kev teeb tsa tshiab thaum pib lub zog, purity yuav poob ua ntej rov qab los - qhov no yog qhov qub thiab feem ntau stabilizes tom qab 3 mus rau 5 lub voj voog. Thaum kho purity, zoo - kho tus nqi ntws ua ntej, ces zoo -tune adsorption lub sij hawm. Kho ob qho tib si hauv kev sib koom tes- zam kev hloov pauv loj rau ob qho tib si hauv kev sib cais.
Common Fault Diagnosis
Cov teeb meem kev ua haujlwm yog qhov tsis muaj tseeb, tab sis ib qho kev kuaj xyuas kom txuag sijhawm. Hauv qab no yog cov kev ua yuam kev thiab ib kauj ruam -los ntawm - kauj ruam mus kom ze.
1. Purity poob
Purity poob yog qhov teeb meem tshaj plaws. Ua raws li qhov kev txiav txim no: huab cua qhov chaw → li qub → adsorbent → instruments.
- Tshawb xyuas huab cua siab thiab dej lwg taw tes ua ntej. Cov roj ntau dhau los yog noo noo ua rau adsorbent thiab txo kev sib cais.
- Txheeb xyuas qhov ua haujlwm valve. Burnt coils lossis torn diaphragms ua rau hloov tsis ua haujlwm; sticking spools ua rau hla - paug. Siv lub stethoscope los yog kuaj lub cev kub kom paub meej.
- Tshawb xyuas lub sijhawm sib npaug thiab lub valve sealing. Kev sib npaug tsis tiav lossis cov qhov dej ntws tawm tso cai rau ntauwd ntoo khaub lig- tham.
- Tshem cov kab qauv tsis tu ncua. Thaiv los yog dej hauv cov kab ntsuas oxygen muab cov ntawv nyeem tsis raug.
2. Tsawg tso zis ntws
Yog tias ntws poob qis dua qhov muaj peev xwm ntsuas, pib ntws.
- Feem ntau cov neeg ua txhaum: hnav compressor, lim lim, los yog cov yeeb nkab xau.
- Sab hauv puas los yog crushed adsorbent nce siab poob. Yog tias qhov sib txawv ntawm qhov sib txawv siab dua li qhov pib pib, xav txog kev hloov adsorbent.
3. Valve ua haujlwm tsis zoo
Pneumatic thiab solenoid li qub feem ntau ua haujlwm thiab ua tsis tau ntau zaus.
- Cov pa xau feem ntau txhais tau tias hnav cov ntsaws ruaj ruaj- hloov lawv.
- Tsis muaj actuation? Tshawb xyuas lub zog rau lub solenoid, tom qab ntawd paub meej tias kev ua kom huab cua siab ua tau raws li qhov tshwj xeeb.
- Kev kaw tsis tiav ua rau poob siab tsis tu ncua - tshuaj xyuas lub rooj zaum ntawm lub rooj zaum rau cov khib nyiab lossis cov roj hmab uas muaj hnub nyoog.
Thaum lub sij hawm niaj hnub kuaj xyuas, mloog kom muaj suab nrov, tsis tu ncua. Nplhaib los yog suab nrov tsis tu ncua feem ntau ceeb toom txog kev ua tsis tiav yav tom ntej.
4. Tswj System yuam kev
Thaum PLC lossis HMI khov lossis ua rau lub tswb tsis raug:
- Tshawb xyuas lub zog ruaj khov thiab grounding ua ntej.
- Hloov pauv tau - zaus tsav lossis cov cuab yeej hnyav tuaj yeem ua rau muaj kev cuam tshuam kev sib raug zoo- nruab ib kab lim yog xav tau.
- Yog tias tsis tau hloov pauv, rov qab los ntawm lub Hoobkas cov ntaub ntawv.
Cov lus pom zoo txog kev tu vaj tse
Kev ntseeg siab ntawm lub tshuab hluav taws xob nitrogen feem ntau nyob ntawm seb kev saib xyuas niaj hnub ua tau zoo npaum li cas. Qee qhov yooj yim overlooked cov ntsiab lus:
- Txheeb xyuas qhov ntsuas ntsuas ntsuas ib ntus -calibrate lub ntsuas pa oxygen nrog tus qauv roj txhua rau lub hlis;
- Hloov cov ntsiab lus lim raws qhov ntsuas qhov sib txawv ntawm qhov sib txawv -tsis txhob tos kom txog thaum lub siab poob siab dhau;
- Adsorbent ib txwm degrades thiab pulverizes lub sijhawm. Tom qab 2 mus rau 3 xyoos ntawm kev ua haujlwm, xyuas cov plua plav ntawm lub qhov hluav taws xob ntauwd- rov ntxiv lossis hloov raws li xav tau;
- Khaws ib lub cav kaw lub siab, purity, ntws, valve voj voog suav, thiab lwm yam tsis. Cov ntaub ntawv no yog qhov tseem ceeb rau kev ntsuam xyuas cov cuab yeej siv kho mob thiab teem caij tiv thaiv kev saib xyuas.
Kev txhim kho, commissioning, thiab kev daws teeb meem ntawm cov tshuab hluav taws xob nitrogen tsis yog qhov nyuaj tshwj xeeb, tab sis txhua kauj ruam yuav tsum tau ua kom zoo thiab ua siab ntev. Thaum cov txheej txheem ua tiav lawm, cov cuab yeej yuav ua kom ruaj khov, ua haujlwm ntev - lub sijhawm ua haujlwm.
