Impurities nyob rau hauv industrial gases ncaj qha cuam tshuam cov txheej txheem stability thiab zaum kawg khoom zoo. Txawm hais tias nyob rau hauv kev tsim khoom siv hluav taws xob, tshuaj lom neeg, ntim khoom noj, lossis kev kho cua sov, cov roj purity tsis raug tuaj yeem ua rau cov khoom siv corrosion, cov khoom tsis lees paub, lossis txawm tias muaj kev nyab xeeb. Xaiv qhov tsim nyog kev lag luam roj purification system thiab teeb tsa kev saib xyuas tsis tu ncua yog qhov tseem ceeb rau kev ua haujlwm ntau lawm. Shenger Gas tau ua haujlwm nrog cov neeg siv thoob plaws kev lag luam sib txawv hauv lub xyoo, thiab cov ntsiab lus hauv qab no yog los ntawm kev paub txog engineering tiag tiag.
Paub Koj Cov Khoom Noj Roj Zoo thiab Lub Hom Phiaj Purity
Thawj kauj ruam yog tsis muab cov khoom siv sib piv cov ntawv qhia. Koj yuav tsum ntsuas koj qhov tseeb pub roj muaj pes tsawg leeg thiab qib impurity. Qhov chaw sib txawv-pipeline roj, ntawm- qhov chaw tsim khoom, lub tog raj kheej packs- qhia txawv txawv impurity variations. Cov ntsiab lus noo noo, piv txwv li, tuaj yeem nyob ntawm ob peb ppm mus rau ntau pua ppm. Oxygen, carbon monoxide, carbon dioxide, thiab tag nrho cov hydrocarbons kuj sib txawv.
Tib lub sijhawm, txiav txim siab qib purity kawg uas koj cov txheej txheem xav tau. Common industrial qib muaj xws li:
- 99.999% (5N) - kev tiv thaiv dav dav, kev kho cua sov
- 99.9995% (5N5) - ntim khoom siv hluav taws xob, kev soj ntsuam kuaj
- 99.9999% (6N) thiab saum toj no - semiconductor manufacturing, siab -purity khoom npaj
Tsuas yog thaum koj paub ob qho tib si koj "tam sim no" thiab koj "lub hom phiaj kawg" koj tuaj yeem xaiv txoj hauv kev ua kom huv huv -adsorption, catalysis, distillation, lossis membrane sib cais- thiab seb yuav xav tau ntau theem.
Main Purification Technologies thiab Qhov Chaw Lawv Ua Haujlwm
Feem ntau cov tshuab purifiers poob rau hauv plaub hom, txhua qhov tsim nyog rau kev tshem tawm cov impurities tshwj xeeb.
1. Adsorption hom
Siv molecular sieves, activated alumina, los yog tshwj xeeb adsorbents rau lub cev cuab yeej dej, CO₂, thiab hydrocarbons. Zoo rau kev tshem tawm impurity tob, tab sis adsorbents saturate thiab xav tau kev rov tsim dua tshiab lossis hloov pauv. Feem ntau rau ziab nitrogen, hydrogen, thiab argon, los yog ua ntej - kauj ruam ua ntej deoxidation.
2. Catalytic hom
Hloov cov pa oxygen hauv hydrogen mus rau hauv dej, lossis carbon monoxide rau hauv methane, ua raws li adsorption kom tshem tawm cov tshuaj tiv thaiv. Kev ua haujlwm siab rau cov tshuaj tiv thaiv tshwj xeeb, tab sis feem ntau xav tau hydrogen lossis lwm cov tshuaj reactant. Feem ntau yog siv rau siab -purity hydrogen ntau lawm los yog inert gas deoxidation.
3. Cryogenic distillation
Sib cais cov pa roj raws li qhov sib txawv ntawm qhov kub. Tshem tawm ntau yam impurities ib zaug thiab tuaj yeem ua tiav 7N lossis siab dua purity. Cov cuab yeej siv siab thiab cov nqi khiav haujlwm. Qhov zoo tshaj plaws rau chav sib cais huab cua loj lossis siab - ntim purification.
4. Membrane sib cais & getters
Membranes ua haujlwm rau kev lim dej ntxhib lossis ua ntej - concentration. Getters tshem tawm cov hlau impurities ntawm high precision, feem ntau yog polishing kauj ruam kawg rau me me ntws.
Hauv kev xyaum, ntau lub tshuab lim dej siv cov txheej txheem "catalytic + adsorption" ua ke - hloov dua siab tshiab ua ntej, tom qab ntawd tshem tawm sib sib zog nqus - ntsuas qhov ua tau zoo thiab purity.
Tsib Technical Parameters los xyuas ua ntej yuav
Thaum sib piv cov qauv sib txawv lossis cov chaw muag khoom, tsom mus rau tsib qhov kev ntsuas no:
- Kev khiav hauj lwm ntau - Ib txwm cubic meters ib teev (Nm³ / h). Tshawb xyuas kev ua haujlwm ntawm ob qho tib si qis thiab siab loads. Qee cov units poob efficiency ntawm ib nrab ntws.
- Qhov siab tshaj plaws inlet impurity theem - Qhov siab tshaj plaws oxygen, noo noo, lossis lwm yam impurity concentration lub purifier tuaj yeem daws tau. Tshaj qhov no ua rau lub tsev puas tsuaj lossis ua kom huv huv.
- Guaranteed qhov hluav taws xob purity - Puas yog tus nqi raug lossis qhov siab tshaj plaws? Kuj xyuas cov txheej txheem xeem thiab kev ua haujlwm tom qab tus lej ntawd.
- Regeneration method and interval – Temperature swing adsorption (TSA) xav tau cua sov. Siab viav vias adsorption (PSA) siv depressurization. Qee chav siv hydrogen txo. Lub sijhawm sib txawv ntawm cov xuab moos mus rau lub hlis, cuam tshuam ncaj qha rau cov nqi khiav haujlwm.
- Kev poob siab thiab kev siv lub zog - qhov tseem ceeb rau cov haujlwm ua haujlwm rov qab. Tus tshiab purifier puas yuav poob qis qis txaus uas koj xav tau lub zog?
Kev tu txhua hnub thiab cov cim teeb meem tshwm sim
Purifiers yooj yim tsis quav ntsej thaum lawv ua haujlwm, tab sis lawv tsis ua haujlwm nres ntau lawm. Ib txoj kev npaj tu ncua yog pheej yig dua li kev kho thaum muaj xwm ceev.
1. Adsorbent thiab catalyst tu
- Sau lub lwg taw tes rov qab lub sij hawm tom qab txhua regeneration. Yog hais tias qhov pib dew point tseem siab tom qab kev tsim dua tshiab, cov adsorbent yuav raug tshuaj lom los yog mus txog qhov kawg ntawm lub neej.
- Rau hydrogen- txo deoxidizers, taug qab yuav tsum tau txo qis npaum li cas. Yog tias ntau qhov kev txo qis tsis rov qab ua haujlwm, kev hloov pauv yuav raug them.
- Tiv thaiv kom tsis txhob ua kua dej nkag mus rau hauv lub txaj adsorbent. Nws ua rau tawg thiab txaj channeling.
2. Valves thiab seals
Tsis siv neeg lub sijhawm ua yuam kev tuaj yeem tso cov khoom purity lossis rov qab tus nqi hauv PSA units. Tshawb xyuas lub valve tawm tswv yim teeb liab thiab mloog cov pa pa tawm txhua lub hlis twg. Rau cov pa oxygen lossis siab - kev pabcuam hydrogen, siv cov ntaub ntawv pov thawj pom zoo thiab hloov lawv raws sijhawm.
3. Cov cuab yeej calibration
Drift nyob rau hauv online trace oxygen analyzers, dew point meters, los yog flow meters feem ntau ua rau cov tswv xav tias lub purifier ua tsis tau tejyam. Calibrate sensors nrog standard gas txhua rau lub hlis. Khaws cov ntaub ntawv calibration.
4. Kev teb xwm ceev
- Fais fab tuag: Qee chav yuav tsum tau rov pib dua lub valve thiab lub cev ntxuav ua ntej rov pib dua.
- Pub roj dheev zuj zus zuj zus: Txhim kho pub roj saib xyuas lossis cuam tshuam kev tiv thaiv kom tsis txhob muaj kev puas tsuaj ntau dhau.
- Regeneration heater tshaj -kub: Xyuas qhov ntsuas kub thiab ntsuas kub. Ntxiv dual dua - tiv thaiv qhov kub thiab txias hauv kev tswj cov logic.
Khaws cov ntaub ntawv thiab txuas ntxiv txhim kho
Lub tshuab ua kom huv huv zoo tso siab tsis yog rau kev xaiv thawj zaug nkaus xwb tab sis kuj tseem nyob ntawm - cov ntaub ntawv ua haujlwm ntev. Sau yam tsawg kawg ntawm cov khoom no txhua lub lim tiam: qhov nruab nrab inlet impurities, cov khoom siv roj dew taw tes thiab qib oxygen, siv lub zog siv ib lub voj voog rov tsim dua tshiab, suav lub voj voog lub voj voog, thiab cov hnub hloov lim.
Siv cov ntaub ntawv no los pom cov adsorbent aging tiam sis. Koj tseem tuaj yeem tshawb pom cov kev hloov pauv hauv koj cov khoom siv roj av lossis cov khoom noj roj. Piv txwv li, yog tias cov dej noo ib txwm nce thaum lub caij ntuj sov, kho lub sijhawm rov tsim dua lossis ntxiv ua ntej- ziab.
Yog tias muaj xwm txheej tso cai, khaws lub tshuab nqus tsev me me ua qhov thaub qab lossis rau kev sim. Qhov no yog tshwj xeeb tshaj yog pab tau rau 24/7 tas mus li ntau lawm. Nws txo qis ib qho - taw tes tsis ua hauj lwm txaus ntshai thiab tso cai rau me me - cov txheej txheem kev sim tsis tau kaw lub hauv paus system.
Tus nqi tiag tiag ntawm kev lag luam roj purifier yog xa cov khoom lag luam zoo ib yam, ruaj khov roj hnub tom qab hnub. Xaiv raws li koj cov ntaub ntawv pub roj tiag tiag, tsis yog kev thov kev lag luam. Ua raws li cov khoom siv tiag tiag xav tau, tsis yog cov cwj pwm qub xwb. Txoj kev ntawd txuas ntxiv cov cuab yeej siv lub neej thiab txo tus nqi tag nrho.
