Cov ntsiab lus ntawm kev saib xyuas rau pH ntsuas
1. Lub sij hawm luv luv ntawm pH iav electrodes: khaws cia rau hauv ib qho kev daws teeb meem nrog pH =4; Lub sij hawm ntev: khaws cia hauv cov tshuaj tsis nrog pH =7.
2. Kev ntxuav ntawm pH iav electrodes yuav ua rau lub sij hawm ntev electrode teb vim muaj paug ntawm cov iav electrode qhov muag teev. Siv CCl4 los yog xab npum los so cov av, ces muab tso rau hauv dej distilled rau ib hnub thiab hmo ntuj ua ntej siv txuas ntxiv. Thaum cov pa phem hnyav heev, nws tuaj yeem tsau rau hauv 5% HF tov rau 10-20 feeb, tam sim ntawd yaug nrog dej, thiab muab tso rau hauv 0.1NHCl tov rau ib hnub thiab hmo ntuj ua ntej siv txuas ntxiv.
3. Kev laus ntawm iav electrodes cuam tshuam nrog kev hloov pauv ntawm cov nplaum txheej txheej txheej. Lub qub electrode muaj cov lus teb qeeb, siab membrane tsis kam, thiab qis nqes. Etching tawm txheej txheej nplaum nrog hydrofluoric acid feem ntau txhim kho electrode kev ua tau zoo. Yog tias txoj kev no tuaj yeem siv tsis tu ncua * * cov txheej txheej sab hauv thiab sab nrauv ntawm cov nplaum, lub neej ntev ntawm cov electrodes yuav luag tsis kawg rau cov av noo sensor probes, stainless hlau hluav taws xob cua sov raj, PT100 sensors, kua solenoid li qub, cam khwb cia txhuas cua sov, thiab cua sov coils.
4. Cov tshuaj cia rau cov khoom siv electrode yog cov tshuaj saturated potassium chloride. Qhov siab ntawm cov tshuaj potassium chloride tuaj yeem tiv thaiv cov nyiaj chloride los ntawm precipitating ntawm cov kua interface thiab tswj lub xeev ua hauj lwm ntawm cov kua interface. Txoj kev no kuj tseem siv tau rau kev khaws cia ntawm cov khoom siv electrodes.
5. Lub regeneration ntawm siv electrodes. Feem ntau ntawm cov teeb meem uas tshwm sim nrog siv electrodes yog tshwm sim los ntawm cov kua interface blockage, uas yuav daws tau los ntawm cov hauv qab no txoj kev:
(1) Soaking tov interface: Siv ib tug sib tov ntawm 10% saturated potassium chloride tov thiab 90% distilled dej, tshav kub mus rau 60-70 degree, raus lub electrode nyob rau hauv txog 5cm, thiab tsau rau 20 feeb mus rau 1 teev. Txoj kev no tuaj yeem yaj cov crystallization ntawm qhov kawg ntawm cov electrode.
(2) Ammonia soaking: Thaum cov kua cuam tshuam los ntawm cov nyiaj chloride, nws tuaj yeem tsau nrog cov dej ntshiab ammonia. Txoj kev tshwj xeeb yog los ntxuav cov khoom siv hluav taws xob sab hauv, cia cov kua dej khoob, thiab muab tso rau hauv dej ammonia rau 10-20 feeb, tab sis tsis txhob cia cov dej ammonia nkag mus rau hauv lub electrode. Tshem cov electrode thiab ntxuav nws nrog dej distilled, tom qab ntawd ntxiv cov kua filling dua ua ntej siv txuas ntxiv.
(3) Lub tshuab nqus tsev vacuum: qhwv lub hose nyob ib ncig ntawm qhov siv electrode kua interface, siv lub twj tso kua mis dej ntws, thiab sau cov kua hauv qhov nqus los ntawm cov kua interface kom tshem tawm cov khoom thaiv.
(4) Boiling kua interface: Cov kua interface ntawm cov nyiaj chloride siv electrode yog immersed nyob rau hauv boiling dej rau 10-20 vib nas this. Nco ntsoov tias ua ntej boiling tom ntej no, lub electrode yuav tsum tau txias rau chav tsev kub.
(5) Thaum tag nrho cov txheej txheem saum toj no tsis muaj txiaj ntsig, kev siv tshuab xws li cov ntawv xuab zeb sib tsoo tuaj yeem siv los tshem tawm cov blockages. Txoj kev no yuav ua rau cov xuab zeb hauv av nkag mus rau hauv cov kua interface. Ua rau muaj kev ruaj ntseg thaiv.
