Kev tu thiab polarization ntawm yaj oxygen meter electrodes
Lub ntsuas pa yaj yog lub ntsuas polarographic tsom, tshwj xeeb tsim los ntsuas ppb-qib yaj oxygen hauv boiler pub dej thiab dej condensate. Nws ua kom muaj kev ruaj ntseg thiab raug ntawm (ultra) tsawg concentrations, thiab zoo heev txhim kho kev ntsuas kev ua tau zoo thiab kev siv ib puag ncig.
Kev kho ntawm yaj oxygen meter electrodes:
(1) Cov tshuaj yaj yeeb yaj kiab electrode yuav tsum tau ntxuav ib zaug txhua 1 mus rau 2 lub lis piam. Yog tias muaj cov kab mob sib kis ntawm lub diaphragm, nws yuav ua rau kev ntsuas yuam kev. Ceev faj tsis txhob ua kom lub diaphragm puas thaum ntxuav. Yaug cov pa oxygen meter electrode hauv dej huv. Yog tias cov av tsis tuaj yeem ntxuav tau, so kom zoo nrog cov ntaub mos muag lossis paj rwb.
(2) Qhov xoom taw tes thiab thaj tsam ntawm cov pa oxygen meter electrode yuav tsum rov ua dua txhua lub Ob Hlis txog Lub Peb Hlis.
(3) Cov pa oxygen meter electrode yog regenerated kwv yees li ib xyoos ib zaug. Thaum ntsuas qhov ntsuas tsis tuaj yeem hloov kho, cov pa oxygen electrode yuav tsum tau rov tsim dua. Electrode regeneration muaj xws li hloov cov electrolyte sab hauv, hloov lub diaphragm, thiab ntxuav cov nyiaj electrode. Yog tias pom oxidation ntawm cov nyiaj electrode, polish nws nrog cov ntawv xuab zeb zoo.
(4) Yog tias pom cov pa hluav taws xob hauv lub ntsuas hluav taws xob tau pom thaum siv, cov electrolyte yuav tsum tau hloov.
Xa mus rau qhov tau hais los saum toj no, thaum koj yuav lub ntsuas pa oxygen, nws tsis yog qhov tseem ceeb tsuas yog siv nws kom raug, tab sis kuj yuav tsum tswj nws. Ntau tus neeg siv khoom muaj teeb meem tom qab yuav nws ua ntej siv nws. Feem ntau ntawm lawv yog cov kws kho mob noj cov electrodes. Thaum siv cov yeeb yaj kiab, kuv yuam kev kov lub taub hau zaj duab xis thiab tawg zaj duab xis. Qhov no ua rau muaj kev sib tham thiab kho ntau dhau ntawm tus neeg siv khoom thiab tus neeg muag khoom. Yog li ntawd, yog tias koj tuaj yeem raug cai thiab ceev faj thaum siv nws, koj yuav zam ntau qhov teeb meem tsis tsim nyog.
Polarization ntawm yaj oxygen meter electrodes
Thaum lub ntsuas hluav taws xob siv los yog txuas txuas txuas ntxiv rau ntau tshaj 5 mus rau 10 feeb, polarization tshwm sim tom qab lub ntsuas hluav taws xob txuas thiab siv hluav taws xob. Txhawm rau kom sib npaug ntawm cov tshuaj hauv cov electrode, txo qis cov pa oxygen tam sim no thiab ua kom cov electrode ruaj khov. Thaum pib, qhov tam sim no ntawm cov electrode kuj loj heev, txo qis exponentially, thiab mus txog lub xeev ruaj khov tom qab 6 teev. Lub sijhawm no, cov ntaub ntawv tso tawm yuav maj mam txo kom txog thaum ruaj khov. Calibration tuaj yeem ua tau.
Cov txheej txheem polarization siv sijhawm 6 teev. Ua ntej, txuas cov electrodes mus rau qhov ntsuas thib ob kom raug thiab tom qab ntawd qhib lub zog ntawm lub ntsuas hluav taws xob. Yog tias lub sijhawm hluav taws xob tawm tsis ntev, lub sijhawm polarization yuav luv dua thiab kev ruaj ntseg yuav nrawm dua.
Polarization ntawm yaj oxygen meter electrode:
Thaum lub ntsuas hluav taws xob siv los yog txuas txuas txuas ntxiv rau ntau tshaj 5 mus rau 10 feeb, polarization tshwm sim tom qab lub ntsuas hluav taws xob txuas thiab siv hluav taws xob. Txhawm rau kom sib npaug ntawm cov tshuaj hauv cov electrode, txo qis cov pa oxygen tam sim no thiab ua kom cov electrode ruaj khov. Thaum pib, qhov tam sim no ntawm cov electrode kuj loj heev, txo qis exponentially, thiab mus txog lub xeev ruaj khov tom qab 6 teev. Lub sijhawm no, cov ntaub ntawv tso tawm yuav maj mam txo kom txog thaum ruaj khov. Calibration tuaj yeem ua tau.
Cov txheej txheem polarization siv sijhawm 6 teev. Ua ntej, txuas cov electrodes mus rau qhov ntsuas thib ob kom raug thiab tom qab ntawd qhib lub zog ntawm lub ntsuas hluav taws xob. Yog tias lub sijhawm kaw hluav taws xob tsis ntev, lub sijhawm polarization yuav luv dua thiab kev ruaj ntseg yuav nrawm dua.\
