Hauv kev lag luam roj sib cais, xaiv lub tshuab hluav taws xob nitrogen ncaj qha cuam tshuam koj cov peev nyiaj roj txhua xyoo. Ntau cov nroj tsuag tsuas yog saib ntawm tus nqi tshuab thaum yuav. Tom qab ntawd lawv pib khiav nws-thiab pom hluav taws xob, kev saib xyuas, thiab huab cua siv ntau dua li qhov xav tau.
Shenger Gas tau ua haujlwm nrog ob peb cov ntaub ntawv ua haujlwm tiag tiag hauv kev sib koom ua ke nitrogen. Peb tau pom tias rau tib qhov kev xav tau purity, txawv kev teeb tsa tuaj yeem pom ntau dua 30% qhov sib txawv ntawm tus nqi khiav. Tsab ntawv xov xwm no txheeb tawm cov cuab yeej cuab tam thaum xaiv thiab yuav ua li cas coj koj tus nqi ib -tuj nitrogen nqis los ntawm kev teeb tsa tsim nyog.
Siab purity tsis zoo dua. Tshaj -tsim hlawv nyiaj
Ntau tus neeg yuav khoom tsuas yog luam qhov purity spec los ntawm cov kab ntau lawm yav dhau los- hais, nug txog 99.999% thaum qhov kev siv tiag tiag tsuas yog xav tau 99.9%. Rau txhua qhov kev txiav txim siab purity nce mus, compressed cua ntim xav tau los tsim 1 Nm³ ntawm nitrogen tuaj yeem nce 15-20%. Qhov ntawd txhais tau tias ntau dua compressor zog rub.
Txoj hauv kev zoo: Tshawb xyuas qhov purity siab tshaj plaws uas xav tau thoob plaws koj cov nroj tsuag. Yog tias cov khoom siv feem ntau xav tau tsuas yog 99.5% thiab tsuas yog ob peb lub ntsiab lus xav tau siab -purity nitrogen, xav txog 99.5% lub tshuab hluav taws xob rau cov kab tseem ceeb, tom qab ntawd ntxiv cov ntawv tshaj tawm - kho ntawm ob peb lub ntsiab lus. Kev nqis peev thawj zaug yuav khiav ntau dua, tab sis ntev - txuag hluav taws xob yog qhov tseem ceeb.
Oversizing lossis undersizing cua compressor - ob qho tib si poob nyiaj
Lub tshuab hluav taws xob nitrogen tsis ua roj los ntawm nws tus kheej. Nws cia siab rau lub tshuab cua compressor. Feem ntau yuam kev: cov npoo ntau dhau ntawm compressor sizing, khiav ntawm qis load feem ntau ntawm lub sij hawm, nkim unloading zog. Los yog undersizing - lub tshuab hluav taws xob tsis tuaj yeem ncav cuag cov txiaj ntsig tso tawm, yuam kom ua haujlwm dhau, ua kom lub neej luv.
Txoj cai sib txuam: Rov qab-xws li compressor hloov chaw los ntawm peb qhov tsis muaj - inlet siab, ntws, thiab dew point xav tau los ntawm lub tshuab hluav taws xob. Ntxiv cov yeeb nkab poob thiab lim siab poob. Feem ntau siv qhov ntsuas ntawm 1.15 txog 1.2. Kuj pom zoo kom VFD compressor. Thaum cov roj xav tau hloov pauv, nws hloov kho kom nquag plias thiab tsis txhob siv cov khoom pov tseg. Ib tsob nroj tau tshaj tawm txog 18% poob hauv compressor hluav taws xob ib leeg tom qab VFD retrofitting.
Tsis quav ntsej txog kev noj huab cua, tsuas yog muab piv rau cov nqi tshuab
Siv ob lub tshuab hluav taws xob 50 Nm³ / teev, ob qho tib si ntawm 99.9% purity. Chav A muaj qhov ntsuas tshwj xeeb huab cua (cov cua ntim tau siv los tsim 1 Nm³ ntawm nitrogen) txog 5.2. Unit B yog hais txog 6.0. Piv txwv li hluav taws xob ntawm 0.7 RMB ib kWh, khiav 8,000 teev ib xyoos, thiab compressor tshwj xeeb hwj chim ntawm 6 kW ib Nm³ / min. Tsuas yog tus nqi hluav taws xob ib leeg xwb, Chav A txuag kwv yees li 35,000 RMB ib xyoo piv rau Chav B. Ob xyoos ntawm cov nyiaj khaws cia yuav yuav ib nrab ntawm chav tsev tshiab.
Thaum xaiv: Nug rau thib peb -cov ntaub ntawv xeem ntawm cov huab cua tshwj xeeb, lossis tsawg kawg khiav ib sab - los ntawm - sab kev xeem nyob rau hauv tib yam kev ua haujlwm. Kev siv huab cua tshwj xeeb yog qhov ntsuas tseem ceeb ntawm kev siv hluav taws xob tiag tiag. Nws qhia koj ntau dua li "adsorber size" lossis "valve brand."
Tsis zoo adsorber tsim - nquag sab saum toj -ups ntawm carbon molecular sieve
Carbon molecular sieve (CMS) yog cov khoom siv tseem ceeb. Qee tus nqi qis -cov nqi qis txo cov kab hluav taws xob adsorber, nce qhov siab - mus rau - txoj kab uas hla, lossis siv lub tshuab xa hluav taws xob yooj yim los txiav cov nqi. CMS raug ntaus los ntawm airflow thiab hmoov. Tom qab 5,000-6,000 teev, nitrogen tso zis poob ceeb thawj. Tus neeg siv raug yuam kom sau lossis hloov CMS nquag.
Kev tsim qauv zoo: Khaws qhov siab - rau - txoj kab uas hla ntawm qhov sib txawv ntawm qhov tsim nyog (kev paub dhau los qhia 2.5 txog 4.0). Nruab ntau- txheej roj faib phaj rau hauv qab. Xyuas kom ntev txaus inlet buffer seem. Nug tus neeg muag khoom ob yam: "tsim kev pab cuam lub neej ntawm CMS" thiab "qhov tseeb ntsuas cov hmoov nplej." Muab tso rau hauv daim ntawv cog lus ib qho kev txwv siab tshaj ntawm cov khoom tawg thaum lub sij hawm lav - piv txwv li, tsis pub ntau tshaj 5% lwj tom qab 10,000 teev ua haujlwm.
Tsis zoo li qub thiab kev tswj hwm - ob npaug ntawm qhov tsis ua haujlwm
Pneumatic li qub voj voog ntawm qhov ntau zaus - kaum tawm txhiab zaus hauv ib hnub. Tsis zoo- zoo valve seals hnav sai sai. Nyob rau hauv ob peb lub hlis, sab hauv to pib, ua rau nitrogen purity swings. Ntawm qhov kev tswj xyuas, yog tias PLC tsis muaj kev lag luam- qib lossis tsis txaus I / O cov npoo, koj yuav khiav mus rau cov teeb meem sib raug zoo tom qab thaum ntxiv cov lwg -point meters, flowmeters, los yog lwm yam expansion modules.
Kev pom zoo: Siv lub npe pneumatic lub kaum ntse ntse- rooj zaum lossis npauj npaim li qub nrog txoj haujlwm tawm tswv yim ntawm cov actuators. Tawm tsawg kawg 20% I / O nthuav dav hauv PLC. Rau lub touchscreen, xaiv qib kev lag luam nrog IP65 lossis siab dua kev tiv thaiv. Cov kev xaiv no raug nqi ntxiv 2,000–2,000–3,000 upfront tab sis zam cov kab ntau lawm raug kaw.
Overlooking installation ib puag ncig thiab kev kho cua
Thaum inlet cua kub rau lub tshuab hluav taws xob tshaj 40 degree, CMS adsorption efficiency poob ceeb thawj. Nyob rau hauv tib lub airflow, nitrogen tso zis tuaj yeem poob ntau dua 10%. Tsis tas li ntawd, cov ntsiab lus roj hauv compressed cua saum toj no 0.01ppm paug CMS, ua rau tsis muaj peev xwm poob.
Daim ntawv teev kev teeb tsa: Lub tshuab cua txias cua txias thiab cov ntxaij lim dej yuav tsum tau nruab - thiab hauv qhov kev txiav txim kom raug: compressor → air receiver → refrigerated dryer → precision filters → nitrogen generator. Rau siab -ambient- qhov chaw ua haujlwm kub, muab lub tshuab hluav taws xob lossis compressor chav cais qhov cua thiab cua txias. Qee cov nroj tsuag muab lub tshuab hluav taws xob tso rau ntawm lub qhov cub - qhov kub thiab txias ntawm 50℃+. Cov hluav taws xob pov tseg, CMS yog seem hauv ob xyoos.
Tsis quav ntsej tag nrho cov nqi ntawm lub neej, tsuas yog sib piv tus nqi pem hauv ntej
Lub tsib-xyoo kev khiav hauj lwm tus nqi tawg rau lub tshuab hluav taws xob nitrogen kwv yees yog: hluav taws xob 50–60%, cov khoom siv ua ntej 20–25%, kev saib xyuas (CMS hloov, kho lub valve, hloov lim) 15–20%. Yog hais tias upfront yog pheej yig tab sis tshwj xeeb huab cua noj yog siab thiab CMS lub neej luv luv, los ntawm xyoo ob daim nqi hluav taws xob twb tau noj cov nqi sib txawv.
Txoj kev ntsuam xyuas: Nug tus neeg muag khoom rau tsib- xyoo tag nrho cov nqi ntawm cov tswv cuab (TCO) daim ntawv - suav nrog ua ntej, kev xav tau hluav taws xob txhua xyoo, CMS hloov lub sijhawm thiab tus nqi, valve hnav cov npe thiab cov nqi. Ntxiv lawv thiab sib piv. Koj yuav pom ntau "pheej yig" units ua tau nqi ntau dua.
Saib xyuas tus neeg muag khoom tom qab- muag khoom muaj peev xwm
Lub tshuab hluav taws xob nitrogen tsis yog txheej txheem -thiab- tsis nco qab tshuab. Valve sticking, purity swings, dew point teeb meem - qhov txawv ntawm ob - teev teb thiab xa ib tug neeg ob hnub tom qab yog loj. Tshwj xeeb tshaj yog rau cov nroj tsuag tej thaj chaw deb uas tsis muaj kev kho hauv zos. Tus neeg muag khoom lub peev xwm kuaj xyuas thaj chaw deb thiab qhov chaw seem tseem ceeb heev.
Ua ntej kos npe: Nug - tom qab- pab pawg muag khoom loj, cov lus teb rau lub sijhawm cog lus, seb puas muaj pawg tswj hwm thaub qab lossis cov valve tseem ceeb, thiab tom qab- cov nqi kev pabcuam lav. Kuj nug kom pom lawv cov chaw taws teeb tswj kev ua haujlwm thiab kev tu lub platform uas twb muaj lawm. Cov neeg muab khoom siv uas tuaj yeem qhia qhov tseeb - lub sijhawm cov khoom siv tsis raug thiab kev ceeb toom tsis raug yog qhov zoo dua.
Txoj cai configuration, tswj cov nqi nitrogen
Tsis muaj ib qho -loj- haum- tag nrho cov lus teb rau kev xaiv lub tshuab hluav taws xob nitrogen, tab sis muaj cov qauv meej. Xaiv purity raws li qhov xav tau tiag tiag. Muab cov cua compressor kom zoo. Ua tib zoo saib xyuas cov huab cua tshwj xeeb thiab CMS lub neej. Xam tsib-xyoo tag nrho tus nqi. Zam cov cuab yeej saum toj no - txiav koj cov nqi nitrogen tam sim no los ntawm 30% yog ua tiav tag nrho. Yog tias koj lub tshuab hluav taws xob uas twb muaj lawm tab tom khiav ntawm tus nqi siab, taug kev los ntawm cov ntsiab lus no thiab ua rau ntawm - xyuas qhov chaw. Ntau qhov kev txhim kho tuaj yeem pom nyob rau hauv cov txheej txheem thiab cov kev txwv ib leeg.
