Cov tshuab xa tawm siab hauv kab ua kom muaj kev nyab xeeb thiab kev ua haujlwm zoo ntawm kev tsim cov kua qaub glacial acetic acid thiab kev ntxuav. Cov txheej txheem distillation acetic acid nyob ntawm kev tswj hwm qhov siab ruaj khov - tshwj xeeb tshaj yog hauv cov tshuab nqus tsev distillation thiab dehydration towers, qhov twg txawm tias qhov sib txawv me me tuaj yeem cuam tshuam rau kev nyab xeeb ua haujlwm thiab qhov zoo ntawm cov khoom.
Cov lus teb tseeb, lub sijhawm tiag tiag los ntawm cov khoom xa tawm hauv kab tiv thaiv kev nce siab uas tuaj yeem ua rau muaj kev ntws ntau dhau, ua npuas dej, lossis kev puas tsuaj ntawm cov kua qaub acetic. Cov kev pheej hmoo no tau nthuav dav hauvkev rho tawm hauv lub tshuab nqus tsevrau qhov kev sib sau ua ke ntawm cov kua qaub acetic, qhov twg kev tswj hwm qhov siab ntawm cov txheej txheem nruj tsis yog tsuas yog ua rau cov khoom huv xwb tab sis kuj txwv kev siv hluav taws xob cuam tshuam nrog kev ua haujlwm ntawm lub boiler thiab lub tower reflux. Kev tswj hwm qhov siab zoo cuam tshuam ncaj qha rau kev thauj khoom ntawm kem, kev sib npaug ntawm cov pa thiab kua, thiab, thaum kawg, cov txiaj ntsig ntawm cov kua qaub acetic uas muaj qhov huv siab.
Acetic Acid Distillation Column
*
Kev Txheeb Xyuas Txog Kev Tsim Khoom thiab Kev Ua Kom Huv Si ntawm Glacial Acetic Acid hauv Kev Lag Luam
Kev tsim thiab ntxuav cov kua qaub glacial acetic acid hauv kev lag luam pib nrog kev hloov cov khoom siv raw - feem ntau yog methanol los ntawm carbonylation lossis bioconversion ntawm biomass - mus rau hauv cov kua qaub acetic acid nyoos. Kev ua cov txheej txheem sab saud suav nrog cov reactors qhov twg kev hloov pauv feedstock tshwm sim. Cov catalysts siv feem ntau, xws li rhodium complexes, pab txhawb kev ua kom cov methanol carbonylation zoo, ua rau cov khoom nyoos muaj dej thiab ntau yam khoom seem.
Tom qab ua tshuaj, cov khoom sib xyaw ua ke yuav raug sib cais thawj zaug kom tshem tawm cov khoom hnyav dua lossis cov khoom tsis yaj. Cov kua qaub acetic Crude, uas tseem tuav cov dej ntau thiab cov khoom tsis huv uas tsis kub heev, raug xa mus rau qhov kev ntxuav hauv qab. Ntawm no, cov txheej txheem tsom mus rau cov txheej txheem rho tawm cua sov thiab kua-kua kom tshem tawm cov dej thiab nrhiav cov khoom tsis huv thaum rov qab tau cov kua qaub acetic uas muaj cov khoom huv siab.
Cov txheej txheem distillation acetic acid yog qhov tseem ceeb. Cov kem distillation—tshwj xeeb tshaj yog cov dehydration towers—tshem tawm dej thiab kho qhov concentration ntawm acetic acid. Cov dehydration towers vam khom kev sib cuag ntawm cov pa dej thiab kua dej ntawm qhov kub thiab txias uas tswj tau kom tsav dej mus rau sab saum toj ntawm kem thaum khaws cov acetic acid ntawm lub hauv paus. Cov kem distillation nqus tsev ua raws li, ua rau kev sib cais ntawm acetic acid los ntawm cov khoom tsis huv uas kub tsawg dua thiab acetic anhydride nrog kev pheej hmoo ntawm kev puas tsuaj thermal tsawg dua. Kev tswj hwm qhov siab ntawm cov txheej txheem thoob plaws hauv cov kem no yog qhov tseem ceeb: qhov siab qis txo cov ntsiab lus kub, txo qis kev siv zog thiab khaws cia cov khoom zoo raws li tau hais tseg hauv kev tshuaj xyuas kev siv tshuab thiab cov lus qhia kev lag luam.
Cov khoom siv tseem ceeb suav nrog:
- Cov chaw ziab dej muaj lub luag haujlwm tshem tawm dej.
- Cov kab sib cais ntawm lub tshuab nqus tsev uas tsim los rau kev sib cais cov khoom tsis huv thiab kev tswj hwm lub zog.
- Cov khoom sib pauv cua sov los sib xyaw cov cua sov hauv cov txheej txheem thiab txo qhov poob zog.
- Cov condenser rau kev rov qab ua pa thiab tswj kev rov qab los.
- Cov theem rho tawm kua uas cov kuab tshuaj xws li esters yuav tshem tawm cov dej lossis cov khoom seem uas tseem tshuav.
Cov txheej txheem ntxuav acetic acid niaj hnub no sib xyaw ua ke kev sib cais thermal nrog kev ua haujlwm siab heev rau kev ua haujlwm zoo dua thiab cov txiaj ntsig zoo dua. Cov thev naus laus zis membrane—txawm hais tias tsis tshua muaj ntau dua li distillation—muab kev xaiv dej-acetic acid sib cais rau cov khoom noj tshwj xeeb. Kev rho tawm kua-kua txuag hluav taws xob, siv cov kuab tshuaj xaiv los ntawm sab saud lossis sab hauv qab ntawm kev distillation, txhawb kev tshem tawm cov khoom tsis huv azeotropic thiab txo qhov siv zog. Cov nroj tsuag feem ntau sib xyaw cov tswv yim ua kom zoo dua qub, siv cov ntaub ntawv tiag tiag thiab kev ua haujlwm tsis siv neeg los sib dhos cov theem distillation, extraction, thiab dehydration rau qhov zoo tshaj plaws ntawm cov khoom thiab kev siv zog zoo.
Kev tswj cov kua qaub glacial acetic acid uas muaj purity siab yog nyob ntawm kev tswj cov txheej txheem txhim khu kev qha thiab kev xaiv cov cuab yeej siv zoo. Lonnmeter inline density thiab viscosity meters xa cov ntaub ntawv tiag tiag rau kev txheeb xyuas cov txheej txheem, tshwj xeeb tshaj yog hauv kev sib cais cov roj nyoos thiab kev kuaj xyuas zoo tom qab distillation. Kev koom ua ke ntawm cov analyzer no tso cai rau kev saib xyuas tas mus li, kev daws teeb meem yooj yim, thiab kev teb tam sim ntawd rau qhov sib txawv, ua kom ntseeg tau tias kev ua haujlwm tas mus li, muaj txiaj ntsig zoo.
Hauv kev xyaum ua, kev lim dej hauv lub tshuab nqus tsev kom tau cov kua qaub acetic tseem nrov vim nws qhov kev nthuav dav thiab kev siv hluav taws xob zoo, thaum kev ua haujlwm thiab kev saib xyuas ntawm lub tshuab dehydration tower tau dhau los ua qhov tseem ceeb rau kev ua haujlwm ntau tshaj plaws thiab txo qhov tsis siv neeg ua haujlwm. Kev tsim qauv zoo thiab kev ua haujlwm zoo tshaj plaws ntawm txhua chav sib cais muab lub hauv paus rau kev tsim cov kua qaub glacial acetic uas ntseeg tau thiab muaj ntau yam uas ua tau raws li cov qauv kev lag luam thiab kev cai lij choj.
Cov Ntsiab Lus Tseem Ceeb hauv Acetic Acid Distillation thiab Kev Tswj Xyuas Siab
Kev tsim thiab kev ua haujlwm ntawm cov kem distillation acetic acid yog qhov tseem ceeb rau kev tswj hwm qhov kev hloov pauv loj. Lub kem yuav tsum cais cov acetic acid kom zoo ntawm cov khoom tsis huv xws li dej, acetaldehyde, thiab formic acid. Qhov no vam khom kev xaiv cov khoom siv sab hauv - cov tais sieve, cov tais bubble cap, lossis cov khoom ntim khoom muaj peev xwm siab - kom phim cov pa thiab cov kua dej uas xav tau.
Qhov piv ntawm qhov rov qab los txiav txim siab qhov huv thiab qhov ua tau. Qis dhau, thiab kev sib cais ntawm cov khoom tsis zoo; siab dhau, thiab kev xav tau zog nce siab yam tsis muaj kev txhim kho. Cov hydraulics hauv lub kem yuav tsum ruaj khov thoob plaws txhua lub tais kom tiv thaiv kev dej nyab lossis quaj, ob qho tib si uas ua rau kev sib cais tsis zoo. Kev ruaj khov ntawm cov txheej txheem ua rau txhua yam ntawm kev ua kom zoo dua ntawm cov txheej txheem acetic acid distillation, raws li cov ntsiab lus kub thiab cov pa dej-kua sib npaug hloov pauv nrog txhua qhov kev hloov pauv.
Kev tsim cov kua qaub acetic acid uas khov thiab ua kom huv yuav tsum tau siv lub tshuab nqus tsev kom huv si thiab tiv thaiv kev lwj ntawm cov kua qaub. Kev ua haujlwm raws li kev tswj hwm qhov siab hauv qab huab cua yuav ua rau lub ntsiab lus kub ntawm cov kua qaub acetic acid poob qis dua nws qhov kev lwj, tiv thaiv cov khoom zoo. Kev tswj hwm lub tshuab nqus tsev kom zoo yuav ua rau kev ua haujlwm tas mus li. Kev nce siab ntawm cov kua qaub ua rau muaj kev pheej hmoo - kev nce siab yuav ua rau kev lwj ntawm cov kua qaub, thaum kev poob qis yuav ua rau cov hydraulics ntawm cov roj thiab yuav ua rau cov pa dej ntws mus rau hauv cov kab ke hauv qab.
Cov Txheej Txheem Ua Kom Huv Si Acetic Acid
*
Lub tsev khaws dej acetic acid dehydration tower no yog tsim los rau ib lub hom phiaj xwb: kev tshem dej tawm sai sai. Dej thiab acetic acid tsim cov azeotropes, ua rau kev distillation ib txwm muaj tsawg dua. Lub tsev khaws dej dehydration tower, feem ntau ua haujlwm ntawm qhov siab tsawg dua thiab muaj cov khoom siv sab hauv tshwj xeeb, tshem dej kom ua tau raws li cov qauv ntawm cov dej khov. Yog tias dej tsis raug tshem tawm zoo, cov theem distillation downstream yuav tsis ua tiav cov khoom huv si txawm tias muaj zog npaum li cas los xij. Kev saib xyuas tas li ntawm lub tsev khaws dej dehydration tower cov tais, cov twj tso kua mis, thiab cov cuab yeej siv yog qhov tseem ceeb. Cov neeg ua haujlwm saib xyuas cov cim qhia ntxov ntawm cov teeb meem, xws li qhov siab poob qis lossis qhov kub tsis sib xws, uas yuav ua rau muaj kev puas tsuaj, lub tais puas tsuaj, lossis kev hla dhau pa.
Kev ntsuas thiab tswj xyuas tas mus li tiv thaiv lub pej thuam qhuav dej kom tsis txhob muaj kev phom sij rau kev ua haujlwm. Cov teeb meem ntau zaus xws li dej nyab (ua rau muaj kua ntau dhau) lossis quaj (kua ntws los ntawm cov tais) cuam tshuam ncaj qha rau cov kua qaub acetic thiab qhov zoo. Rau kev daws teeb meem ntawm cov kab ke distillation acetic acid, cov neeg ua haujlwm vam khom cov ntaub ntawv txheej txheem los kuaj mob thiab kho cov teeb meem no sai sai, txo qhov kev poob haujlwm.
Cov txheej txheem tswj kev siab hauv kev tsim cov kua qaub acetic vam khom kev ntsuas ncaj qha hauv kab siv cov transmitters muaj zog. Kev nyeem ntawv siab raug yog lub hauv paus ntawm cov voj voog rov qab tsis siv neeg uas kho cov ntsiab lus teeb tsa kom ruaj khov hauv cov chaw distillation thiab dehydration. Cov kev sib txuas kev nyab xeeb siv cov kev ntsuas no, ua rau kaw sai sai thaum muaj kev hloov pauv txaus ntshai los tiv thaiv ob qho tib si khoom siv thiab cov neeg ua haujlwm.
Kev ntsuas siab heev hauv kev ua tshuaj feem ntau siv cov transmitters uas muaj kev ntseeg siab zoo li cov uas ua raws li cov ntsiab cai ntawm kev sib txawv. Kev kho kom zoo yog qhov tseem ceeb - kev txav mus los tuaj yeem ua rau nyeem tsis raug thiab tswj tsis zoo, yog li kev siv cov lus qhia xws li Rosemount 3051 pressure transmitter calibration guide yog kev coj ua niaj hnub.
Hauv txhua theem, cov txheej txheem ntxuav acetic acid hauv kev lag luam nyob ntawm kev sib xyaw ua ke ntawm kev ua haujlwm ntawm cov khoom siv, kev ntsuas tas mus li, thiab kev ua haujlwm tsis siv neeg. Txhua kauj ruam, los ntawm kev lim dej nqus tsev rau kev sib sau ua ke ntawm acetic acid mus rau kev qhuav dej thiab kev ntxuav zaum kawg, yog ua kom muaj kev tswj hwm qhov siab kom raug thiab ruaj khov. Lonnmeter in-line density thiab viscosity meters feem ntau raug koom ua ke ntawm cov ntsiab lus tseem ceeb, muab cov ntaub ntawv tseem ceeb ntawm cov txheej txheem nrog rau kev ntsuas siab thiab kub uas tseem ceeb rau kev ua haujlwm zoo, muaj txiaj ntsig zoo.
Cov Cuab Yeej Siv Hauv Kab Siab Tshaj Plaws rau Kev Distillation thiab Purification Acetic Acid
Hauv kev tsim thiab ua kom huv ntawm cov kua qaub glacial acetic acid, cov cuab yeej siv inline siab heev muab cov ntaub ntawv tam sim ntawd, qhov tseeb siab rau cov neeg ua haujlwm kom ua tau zoo tshaj plaws rau kev tsim thiab ua haujlwm ntawm cov kem distillation. Cov inline pressure transmitters, xws li cov uas tsim los ntawm Lonnmeter, yog qhov tseem ceeb rau kev saib xyuas qhov siab ntawm kem, tshwj xeeb tshaj yog hauv kev nqus tsev distillation rau qhov concentration ntawm acetic acid. Cov transmitters no ua kom muaj kev ua haujlwm ruaj khov thaum lub sijhawm ua haujlwm ntawm lub dehydration tower thiab hauv cov kem fractionation tseem ceeb, ua kom cov khoom zoo thiab kev nyab xeeb ntawm cov txheej txheem.
Dhau li ntawm cov ntsuas siab, cov nroj tsuag suav nrog cov cuab yeej inline xws li cov ntsuas concentration, cov ntsuas density, cov ntsuas viscosity, cov ntsuas qib, thiab cov ntsuas kub.Cov ntsuas concentration hauv kabtaug qab lub zog ntawm cov kua qaub, sai sai cim qhia txog qhov sib txawv uas qhia txog qhov xau, dej entrained, lossis kev sib cais tsis tiav. Cov ntsuas qhov ceev, suav nrog cov qauv los ntawm Lonnmeter, txuas ntxiv lees paub qhov huv ntawm cov khoom thiab qhia txog kev ua kom zoo dua ntawm cov txheej txheem distillation. Cov ntsuas viscosity inline qhia txog kev hloov pauv hauv cov khoom noj lossis qhia txog cov polymer buildup ntawm cov tais lossis cov ntim khoom - ib qho cuab yeej kuaj mob tseem ceeb thaum lub sijhawm daws teeb meem acetic acid distillation systems.
Cov khoom xa tawm qib qhia cov neeg ua haujlwm txog kev tuav cov kua hauv cov kem thiab cov reboilers. Qhov no tiv thaiv kev nyab xeeb thiab ua kom muaj qhov sib piv reflux kom raug rau kev sib cais zoo hauv cov txheej txheem glacial acetic acid vacuum distillation. Cov ntsuas kub, ntsia rau ntawm qhov chaw tseem ceeb xws li cov tais kem, lub tshuab khaws cia saum toj kawg nkaus, thiab reboiler, muab cov ntaub ntawv tseem ceeb rau kev tswj siab ntawm cov txheej txheem acetic acid.
Lonnmeter lub tshuab xa xov xwm siab inline zoo ib yam li cov txheej txheem tsim los rau kev ntsuas siab siab hauv kev ua tshuaj. Thaum ntsia rau ntawm cov pej thuam dehydration, nws muab cov lus teb rov qab rau theem nqus tsev tiag tiag. Qhov no yog qhov tseem ceeb rau kev tswj cov dej evaporation thiab cov kauj ruam tshem tawm acetic acid kom raug thiab tswj cov khoom sib xyaw ua ke. Hauv kem distillation tseem ceeb, cov teeb liab tswj siab los ntawm Lonnmeter transmitter kho cov qhov cua, cov dej ntws rov qab, thiab lub luag haujlwm condenser. Qhov no tiv thaiv cov xwm txheej overpressure txaus ntshai thiab khaws cia qhov ua tau zoo tshaj plaws uas yog lub hauv paus rau cov txheej txheem ntxuav acetic acid hauv kev lag luam.
Kev ua haujlwm tiag tiag feem ntau muaj teeb meem xws li kev ua qias tuaj, kev hloov pauv ntawm cov khoom noj sai sai, lossis kev xau dej hauv lub tshuab nqus tsev. Cov lus teb sai thiab raug los ntawm cov khoom siv inline sensors tag nrho cia cov neeg ua haujlwm thiab cov txheej txheem tswj hwm teb tam sim ntawd, ua kom cov txheej txheem ruaj khov thiab txo qhov kev pheej hmoo ntawm cov khoom tsis raws li qhov tau teev tseg. Cov cuab yeej siv inline siab heev tsis yog tsuas yog txhawb kev nyab xeeb thiab kev ua raws li txoj cai tab sis kuj txhim kho kev ua haujlwm zoo ntawm cov txheej txheem thiab kev rov qab tau cov khoom thoob plaws cov chaw ntxuav acetic acid niaj hnub.
Kev Teeb tsa thiab Kev Txhim Kho rau Kev Ntsuas Siab Inline
Kev tso cov cuab yeej ntsuas siab hauv kab kom raug yog qhov tseem ceeb rau kev tswj cov txheej txheem zoo hauv kev tsim thiab kev ua kom huv ntawm cov kua qaub acetic glacial. Hauv kev tsim thiab kev ua haujlwm ntawm cov kem distillation acetic acid, kev tso cov cuab yeej cuam tshuam rau lub sijhawm teb, kev ntseeg siab ntawm cov ntaub ntawv, thiab kev ua kom zoo dua ntawm lub kaw lus. Cov ntsiab lus pom zoo rau kev teeb tsa suav nrog cov qhov hluav taws xob ntawm kem, cov kab reboiler, cov condenser returns, thiab cov kev sib tshuam tseem ceeb hauv cov dehydration towers thiab cov loops rho tawm.
Ntawm cov qhov hluav taws xob ntawm cov kav dej, cov khoom xa tawm siab hauv kab ntes tau qhov kev hloov pauv tiag tiag hauv theem pa, ncaj qha cuam tshuam nrog cov khoom lag luam saum toj kawg nkaus thiab kev huv. Qhov chaw no txhim kho cov txheej txheem distillation acetic acid los ntawm kev ua kom cov neeg teb xov tooj teb sai rau kev cuam tshuam siab - txo qis kev ncua ntawm kev hloov pauv txheej txheem thiab kev kho qhov system. Rau cov txheej txheem distillation nqus tsev, tshwj xeeb tshaj yog thaum concentrating glacial acetic acid, mounting transmitters hauv cov kab reboiler txhawb nqa kev kuaj pom thaum ntxov ntawm kev hloov pauv siab tam sim ntawd, uas tuaj yeem qhia txog fouling, xau, lossis kev cuam tshuam cov pa dej ntws.
Kev teeb tsa cov transmitters inline ntawm cov kab rov qab condenser txhim kho kev saib xyuas qhov kev hloov pauv ntawm lub zog thaum lub sijhawm hloov pauv condensed. Qhov chaw zoo ntawm no ua rau muaj kev tawm tswv yim zoo dua rau kev tswj hwm lub zog ntawm kem, uas yog qhov rhiab heev hauv kev distillation nqus tsev rau qhov concentration ntawm acetic acid. Hauv cov dehydration towers, cov transmitters ze ntawm cov chaw txhaj tshuaj pub, cov qhov hluav taws xob vapor, thiab cov kab kos sab tuaj yeem ci cov qauv siab uas tseem ceeb rau kev daws teeb meem ntawm cov kab ke distillation thiab txhim kho lub sijhawm ua haujlwm ntawm cov nroj tsuag.
Qhov chaw zoo tshaj plaws pab ncaj qha rau kev siv cov khoom siv raw tsawg kawg nkaus thiab txo cov khoom poob. Nrog rau kev tawm tswv yim siab sai thiab txhim khu kev qha, cov neeg ua haujlwm tuaj yeem tswj hwm cov haujlwm rhiab heev, teb rau qhov sib txawv ua ntej lawv loj hlob. Qhov no txo qis qhov zaus thiab ntim ntawm cov khoom tsis raws li qhov xav tau rov ua dua, txhawb nqa cov txheej txheem ntxuav acetic acid hauv kev lag luam ntawm qhov ntsuas. Kev nrhiav cov khoom siv ntawm qhov sib tshuam tseem ceeb pab ua kom ntseeg tau tias cov ntsuas ntsuas sib phim nrog qhov xwm txheej tiag tiag ntawm cov txheej txheem, ua rau muaj txiaj ntsig ntawm kev ntsuas siab siab hauv kev ua tshuaj.
Kev txhawb nqa cov chaw no nrog cov transmitters inline muaj zog, cov engineers ntawm lub Hoobkas tuaj yeem ua tiav cov txheej txheem tswj kev siab ntawm acetic acid. Kev teeb tsa zoo ua kom muaj cov cim qhia sai rau kev kho kev ua haujlwm thaum txhua theem, thaum kawg ua kom lub sijhawm ua haujlwm siab tshaj plaws thiab txhawb nqa kev tsim thiab kev ntxuav glacial acetic acid tas mus li.
Lonnmeter Inline Pressure Transmitter
Lub Lonnmeter inline pressure transmitter yog tsim los ua kom tau raws li qhov xav tau ntawm kev tsim cov kua qaub glacial acetic acid thiab kev ntxuav. Tsim los rau kev tiv thaiv tshuaj lom neeg, nws ua haujlwm tau zoo hauv cov chaw ib puag ncig hnyav uas pom muaj nyob rau hauv cov kem distillation acetic acid, dehydration towers, thiab cov chav distillation vacuum.
Ib qho tshwj xeeb tshaj plaws yog lub transmitter teb sai sai rau cov digital. Lub peev xwm no ua kom zoo dua qhov kev tswj hwm cov txheej txheem distillation acetic acid los ntawm kev ua kom muaj kev tawm tswv yim tiag tiag. Kev nyeem ntawv ceev ceev yog qhov tseem ceeb rau kev saib xyuas tag nrho cov siab ntawm kem, tswj cov xwm txheej nqus tsev thaum lub sijhawm nqus tsev rau cov acetic acid concentration, thiab ua kom muaj kev tswj hwm meej hauv cov pej thuam acetic acid dehydration siab.
Lub cuab yeej no muaj kev sib raug zoo nrog cov tshuaj lom neeg, txhawb kev raug rau cov pa roj acetic acid concentrated thiab cov neeg ua haujlwm ntxuav. Nws txoj kev tsim kho ruaj khov tiv thaiv cov khoom ntsuas los ntawm kev xeb, txo qhov kev hloov pauv ntawm lub sensor thiab kev xav tau kev saib xyuas hauv cov xwm txheej ua haujlwm tas mus li uas feem ntau yog cov txheej txheem ntxuav acetic acid hauv kev lag luam.
Lub Lonnmeter transmitter sib txuas nrog cov qauv DCS thiab PLC niaj hnub no. Nws muaj cov txheej txheem sib txuas lus thoob ntiaj teb, uas ua rau kev txuas hluav taws xob thiab kev ua haujlwm yooj yim hauv cov haujlwm tshiab thiab kho dua tshiab. Qhov no tshem tawm qhov nyuaj uas feem ntau cuam tshuam nrog kev koom ua ke cov transmitters analog ib txwm muaj rau hauv cov kab ke tswj hwm faib tawm, ua rau muaj kev txhim kho zoo thaum ua kom zoo dua qhov kev tsim thiab kev ua haujlwm ntawm cov kem acetic acid distillation. Lub transmitter yog qhov kev xaiv hloov pauv ncaj qha rau cov transmitters siab qub lossis Rosemount, ua kom ntseeg tau tias kev teeb tsa yooj yim. Cov ntawv pov thawj tiav txhawb nqa kev xa mus rau hauv cov chaw muaj tshuaj lom neeg tswj hwm.
Muaj cov haujlwm kuaj mob siab heev, ua kom lub kaw lus ntseeg tau. Lub transmitter ntes tau qhov sib txawv ntawm cov qauv siab, xws li qhov siab poob qis tsis tau xav txog hauv lub tshuab nqus tsev lossis qhov nce siab tsis zoo thaum lub sijhawm ua haujlwm tsis zoo. Cov kev kuaj mob digital no ua rau pom tau sai ntawm cov dej nyab, qhov xau, lossis qhov tsis ua haujlwm ntawm lub tshuab nqus tsev, uas yog cov teeb meem tshwm sim ntau hauv cov tshuab acetic acid distillation. Cov tswb ceeb toom tsis siv neeg xa xov sai, txo cov kev kuaj xyuas tes thiab tso cai rau kev saib xyuas ua ntej uas tiv thaiv lub sijhawm tsis ua haujlwm tsis tau npaj tseg.
Los ntawm kev sib txuas ua ke kev ntsuas digital ceev, kev ruaj khov tshuaj lom neeg siab, thiab kev sib koom ua ke ntawm cov nroj tsuag ntsaws-thiab-ua si, Lonnmeter inline pressure transmitter yog ib qho cuab yeej tseeb thiab txhim khu kev qha rau kev ntsuas siab siab hauv kev siv tshuaj lom neeg - suav nrog cov txheej txheem tswj kev nyuaj ntawm acetic acid.
Kev Ua Haujlwm Zoo thiab Kev Txo Nqi nrog Cov Cuab Yeej Siv Niaj Hnub Nim No
Cov cuab yeej siv niaj hnub no, xws li Lonnmeter series, tau hloov pauv ntau yam kev tsim thiab kev ntxuav cov kua qaub glacial acetic acid. Los ntawm kev sib koom ua ke tag nrho cov ntsuas qhov ceev inline, cov ntsuas concentration, thiab cov ntsuas qib rau hauv cov kab distillation thiab cov pas dej dehydration, cov nroj tsuag ua tiav cov txiaj ntsig zoo thiab cov nqi qis dua ntawm ntau yam kev ua haujlwm.
Kev ruaj khov ntawm cov txheej txheem yog qhov tshwm sim ncaj qha los ntawm kev ntsuas inline tiag tiag. Nrog Lonnmeter density meters, kev tawm tswv yim tas mus li ua kom cov txheej txheem distillation acetic acid zoo tshaj plaws los ntawm kev ua haujlwm ntawm cov kem hauv cov kev ntsuas zoo tshaj plaws. Kev nyeem ntawv ceev thiab concentration muaj tam sim ntawd, ua rau cov kab ke tswj hwm kho qhov sib piv reflux, cov nqi cua sov, thiab cov xwm txheej nqus tsev, tseem ceeb rau kev ua haujlwm ruaj khov hauv cov txheej txheem glacial acetic acid nqus tsev distillation. Qhov no ua rau muaj kev hloov pauv tsawg dua, kev tswj hwm nruj dua ntawm ob qho tib si overhead thiab bottoms cov khoom specifications, thiab tsawg dua kev pheej hmoo ntawm kev tsim cov khoom tsis raws li qhov xav tau.
Kev tswj hwm nruj dua kuj txhais tau tias yuav txuag tau hluav taws xob. Kev tswj hwm qhov siab thiab kub ntawm lub kem kom meej dua txhais tau tias tsuas yog siv lub zog xav tau rau kev ua pa thiab kev sib cais. Hauv kev xyaum, kev ntsuas inline tso cai rau cov tswj hwm qhov siab ntawm cov txheej txheem - txhawb nqa los ntawm cov tswv yim los ntawm cov cuab yeej xws li cov transmitters siab uas tau teeb tsa siv cov txheej txheem tswj qhov siab ntawm acetic acid - kom txo qis kev sib hloov, yog li zam kev ua haujlwm ntawm lub tshuab ua kom rov ua dua lossis lub twj tso kua mis nqus tsev ntau dhau. Kev txuag hluav taws xob sib xyaw nrog kev tsim cov khoom tsis raws li qhov xav tau. Kev mus ncig tsawg dua txhais tau tias cov khoom siv tsawg dua rov ua dua lossis pov tseg, cuam tshuam ncaj qha rau cov kab hauv qab.
Cov cuab yeej no siv tau kev kuaj mob ua ntej kom yooj yim dua rau kev saib xyuas. Cov ntsuas qhov ceev thiab qhov concentration hauv kab, zoo li Lonnmeter series, qhia txog kev noj qab haus huv thiab kev ntsuas qhov xwm txheej tas li. Cov neeg ua haujlwm tau txais kev ceeb toom ua ntej ntawm kev hloov pauv ntawm lub sensor lossis kev ua qias tuaj, tshwj xeeb tshaj yog qhov tseem ceeb thaum lub sijhawm ua haujlwm ntev hauv kev lim dej rau cov acetic acid concentration thiab dehydration theem. Kev saib xyuas yog npaj raws li cov xwm txheej ntawm cov khoom siv, tsis yog daim ntawv qhia hnub tas sijhawm, txo cov sijhawm tsis tau npaj tseg thiab txuas ntxiv lub neej ntawm cov khoom. Yog li ntawd, kev daws teeb meem ntawm cov kab ke acetic acid distillation ua rau muaj kev ua haujlwm ntau dua, nrog rau kev kho tom qab tsawg dua.
Kev txo nqi tau txhawb nqa ntau txoj hauv kev. Kev ntsuas thiab kev tswj hwm lub sijhawm tiag tiag tshem tawm qhov xav tau kev kuaj tes ntau zaus, txo qis kev xav tau ua haujlwm thiab kev pheej hmoo ntawm kev ua yuam kev ntawm kev tuav cov qauv. Cov lus ceeb toom kwv yees txo qis kev vam khom rau kev kho thaum muaj xwm txheej ceev thiab luv luv kev cuam tshuam cov txheej txheem. Kev poob khoom raug txo qis vim tias kev tawm tswv yim qhov ceev raug ua kom ntseeg tau tias qhov hloov ntawm cov thawv khoom raug kho kom zoo, thiab kev hloov pauv tawm ntawm qib raug txo qis. Kev siv cov khoom siv hluav taws xob qis dua vim tias tsuas yog cov pa lossis lub tshuab nqus tsev uas xav tau siv los tswj cov ntsiab lus teeb tsa. Tsis tas li ntawd, tsawg dua qhov kev kaw tsis tau teem sijhawm txhais tau tias lub Hoobkas siv nws lub peev xwm ntsia tau tag nrho.
Los ntawm kev txuas cov cuab yeej no rau hauv cov qauv tswj hwm niaj hnub no, txhua lub sensor—qhov ceev, qhov concentration, qib—pub cov ntaub ntawv tas mus li rau kev hloov kho sai thiab kev saib xyuas. Qhov tshwm sim yog lub kaw lus txhim khu kev qha dua, siv hluav taws xob tsawg dua, thiab tsim nyog rau cov txheej txheem ntxuav acetic acid hauv kev lag luam, tshwj xeeb tshaj yog hauv cov ntawv thov uas xav tau kev huv siab lossis ua haujlwm hauv qab cov xwm txheej distillation nqus tsev. Cov kev txhim kho no txhawb nqa kev sib tw ntawm cov nroj tsuag thiab ua raws li cov kev cai zoo hauv kev tsim tshuaj.
Txhim kho koj cov acetic acid distillation, purification, thiab vacuum dehydration systems nrog Lonnmeter inline pressure transmitters, tsim los rau kev tswj siab kom raug lub sijhawm tiag tiag. Kev tswj siab zoo yog qhov tseem ceeb rau kev ua kom zoo dua ntawm glacial acetic acid tsim thiab purification, tshwj xeeb tshaj yog nyob rau hauv cov ntawv thov uas xav tau kev siv zog xws li kev tsim cov acetic acid distillation column, vacuum distillation, thiab dehydration tower operation.
Cov Lus Nug Feem Ntau
1. Kev tswj qhov siab ntawm cov txheej txheem cuam tshuam li cas rau qhov ua tau zoo ntawm cov kem distillation acetic acid?
Kev tswj qhov siab ntawm cov txheej txheem kom raug yog qhov tseem ceeb rau kev tsim thiab ua haujlwm ntawm cov kem acetic acid distillation. Kev tswj qhov siab kom ruaj khov hauv cov chaw teeb tsa ncaj qha cuam tshuam rau kev ua haujlwm sib cais los ntawm kev khaws cov khoom kom nyob rau ntawm lawv qhov kev hloov pauv uas xav tau. Qhov siab tas li txo qhov xav tau zog rau kev rov ua kom npau thiab ua kom txias, uas ua rau kev siv cov pa dej zoo dua thiab kev xav tau dej txias. Kev tswj hwm nruj kuj tseem ceeb rau kev ua haujlwm ruaj khov, txo cov khoom tsis raws li qhov xav tau thiab txhawb nqa kev tsim cov kua qaub glacial acetic acid thiab kev ntxuav tas li. Cov transmitters inline muab cov ntaub ntawv siab tiag tiag, ua rau muaj kev kho tam sim ntawd thiab kho kom zoo rau kev sib cais zoo tshaj plaws thiab kev ua haujlwm ruaj khov.
2. Vim li cas kev lim dej hauv qhov chaw nqus tsev thiaj li tseem ceeb rau kev tsim cov kua qaub glacial acetic acid thiab kev ntxuav?
Kev rho tawm ntawm lub tshuab nqus tsev yog qhov tseem ceeb rau kev tsim cov kua qaub glacial acetic acid vim nws tso cai rau kev sib cais tshwm sim ntawm qhov kub qis dua qhov kub ntawm huab cua. Qhov kub ua haujlwm qis dua yog qhov tsim nyog los tiv thaiv kev rhuav tshem cov kua qaub acetic acid los ntawm cua sov, tshwj xeeb tshaj yog thaum tsom mus rau qhov huv siab heev. Kev tswj hwm qhov chaw nqus tsev zoo kuj txo qhov kev siv hluav taws xob. Kev siv cov khoom xa tawm siab hauv kab raug txhawb nqa cov txheej txheem rho tawm ntawm lub tshuab nqus tsev los ntawm kev ua kom ntseeg tau tias qhov siab qis raug tswj tsis muaj kev hloov pauv, yog li tiv thaiv cov khoom zoo thiab kev ua haujlwm ntawm cov khoom siv.
3. Cov txiaj ntsig ntawm kev siv Rosemount 3051 lub tshuab xa hluav taws xob sib txawv hauv cov chaw tsim tshuaj lom neeg yog dab tsi?
Lub Rosemount 3051 lub tshuab ntsuas siab sib txawv siv dav hauv cov tshuab ntxuav acetic acid vim nws qhov tseeb, kev ntseeg siab, thiab kev ruaj khov. Nws xa cov ntawv nyeem siab tiag tiag, meej uas txhawb nqa kev ntsuas siab siab hauv kev ua tshuaj. Qhov no txhim kho kev tswj hwm cov txheej txheem hauv cov kem distillation thiab dehydration towers los ntawm kev ua kom cov neeg teb xov tooj tuaj yeem tswj hwm cov qauv siab zoo tshaj plaws, yog li ua rau muaj txiaj ntsig ntau dua thiab txo cov kev pheej hmoo ntawm kev hloov pauv siab txaus ntshai. Kev ntseeg siab kuj txo qis lub sijhawm txij nkawm thiab lub sijhawm tsis tau npaj tseg, txhawb nqa kev ua haujlwm txuas ntxiv mus zoo thiab muaj txiaj ntsig.
4. Yuav tsum tau teeb tsa cov inline pressure transmitters qhov twg hauv cov txheej txheem acetic acid distillation?
Cov khoom xa tawm siab hauv kab yuav tsum tau muab tso rau qhov chaw zoo kom ntes tau cov zog siab tseem ceeb thoob plaws hauv cov txheej txheem acetic acid distillation. Cov ntsiab lus tseem ceeb suav nrog cov pa tawm ntawm sab saum toj ntawm cov kem distillation, cov khoom siv reboiler, cov khoom noj hauv kem, thiab ntawm cov taub hau thiab cov tw ntawm cov kem. Kev tso kom raug ua kom paub txog lub sijhawm tiag tiag ntawm txhua qhov kev hloov pauv siab uas yuav qhia txog kev tsis ruaj khov, kev xau, lossis kev ua qias tuaj, ua rau muaj kev daws teeb meem sai thiab kev tswj hwm qhov zoo ntawm cov khoom.
5Kev ntsuas siab ua lub luag haujlwm dab tsi hauv kev daws teeb meem ntawm cov txheej txheem distillation acetic acid?
Kev ntsuas siab yog qhov tseem ceeb rau kev daws teeb meem ntawm cov txheej txheem distillation acetic acid. Cov ntaub ntawv ceev ceev thiab raug los ntawm cov inline pressure transmitters qhia txog cov teeb meem xws li lub tshuab nqus tsev xau, cov pa dej tsis sib xws, lossis dej nyab hauv kem. Piv txwv li, qhov poob ntawm lub taub hau kem tuaj yeem qhia txog qhov xau pa dej, thaum qhov siab siab tsis tau xav txog yuav qhia txog qhov av qias neeg lossis kev ua haujlwm tsis zoo ntawm lub boiler. Kev txheeb xyuas sai ntawm cov teeb meem no ua rau cov kua qaub acetic acid glacial thiab kev huv si ntawm lub hom phiaj, tiv thaiv kev ncua sijhawm ntev, thiab ua kom lub neej ntawm cov khoom siv ntev dua - txhua yam tseem ceeb hauv kev ua haujlwm ntawm lub tsev dehydration acetic acid thiab kev saib xyuas.
Lub sijhawm tshaj tawm: Lub Ib Hlis-15-2026
