Acidic atmospheric ib puag ncig nyob rau hauv cov xwm yuav nag lossis daus (los nag thiab daus) thiab sedimentation (aerosol los yog gaseous acid compounds nyob rau hauv daim ntawv ntawm) ob txoj kev los daws rau saum npoo ntawm cov khoom. Cov tshuaj no ib zaug ntsib dej yuav tsim ib tug tsis muaj zog acidic yaj nruab nrab, thiab maj mam oxidized, tsim sulfuric acid, nitric acid, thiab lwm yam muaj zog acidic tshuaj, uas ua rau muaj zog corrosion ntawm cov khoom. LIBmixed flowing gas Chamber Muaj peev xwm muab plaub txog tsib yam kev phom sij, hydrogen sulfide thiab nitrogen dioxide, kom ua tiav cov roj corrosion ib leeg lossis ntau cov pa corrosion.
Cov nyhuv ntawm acidic atmospheric ib puag ncig ntawm cov khoom
① Chemical yaig ntawm txheej txheej thiab cov khoom tsis yog xim hlau
Acidic tshuaj yuav chricically refrers nrog fitters lossis pigments txheej txheej txheej txheej txheej thiab txo cov khoom siv lub cev ntawm txheej txheej txheej txheej txheej txheej. Ib qho ntxiv, kev nkag mus thiab tshuaj off daws teeb meem rau txheej txheej txheej txheej txheej thiab thaum kawg ntawm txheej txheej txheej ua kev puas tsuaj thiab ua tsis tiav ntawm txheej txheej txheej txheej. Piv txwv li, lub Taj Mahal maj mam hloov pauv los ntawm Milky dawb rau daj vim tias cov kua qaub nag yis yaig, thiab qee qhov chaw ua xeb.
② Hlau corrosion
Nws yog feem ntau yog los ntawm kev sib cais ntawm cov hlau los ntawm cov kua qaub uas muaj zog xws li sulfuric acid thiab nitric acid, thiab electrochemical corrosion tshwm sim los ntawm cov kua qaub los nag tom qab tsim cov electrolyte kua zaj duab xis rau saum npoo, uas ua rau corrosion sai ntawm hlau. Piv txwv li, tus mlom nto moo ntawm Kev ywj pheej nyob hauv New York Harbor hauv Tebchaws Meskas, daim ntawv tooj liab nyias sab nraum cov pob zeb uas muaj zog ntxiv tau xoob vim los nag los nag thiab poob ntawm qhov kov.
(3) Pitting ntawm ceramics thiab optical instruments
Feem ntau vim yog cov tshuaj tiv thaiv ntawm cov kua qaub los nag nrog cov tshuaj ntsuab, pob zeb rau cov khoom noj ntawm cov kev tsim ntawm suav tsis txheeb lub ntsej muag me me, nrog Lub expansion ntawm corrosion, thiab thaum kawg ua kev puas tsuaj lub ceramic thiab iav los ntawm sab hauv. Piv txwv li, lub tsev teev ntuj thaum ub lub tsev teev ntuj nyob rau hauv cov pob zeb me me tau muab cov xim acid uas maj mam muab cov xim av, thiab qee yam txawm tias faded kiag li.
Cov txheej txheem ntsuas raug
Acid cov huab cua Kev sim siv rau cov khoom lag luam uas tuaj yeem khaws cia lossis siv hauv thaj chaw nrog cov pa roj av lossis ze rau cov pa roj los ntawm cov khoom sib txuas. Nws cov khoom xeem feem ntau suav nrog ob hom hauv qab no.
① Siv cov khoom tub rog siv nyob ze cov cheeb tsam muaj kev lag luam. Piv txwv li, cov khoom lag luam tub rog siv nyob ze huab cua thaj chaw xws li Northeast thiab Southwest.
② Cov khoom nruab lossis siv ze ntawm lub dav hlau lossis lub cav tsheb. Piv txwv li, cov khoom ntawm cov neeg nqa dav hlau, cov khoom nyob ze ntawm tus Tsov tus tw ntawm lub cav dav hlau, cov khoom nyob ze ntawm cov yeeb nkab ntawm cov tsheb armored.
Qhov kev sim no tsis tuaj yeem siv los hloov cov tshuaj hydrogen sulfide corrosion thiab tshuaj tsuag ntsev.
(1) Hydrogen sulfide corrosion test
Vim muaj tshuaj lom neeg muaj zog heev ntawm hydrogen sulfide, nws yooj yim rau oxidize rau sulfur dioxide hauv huab cua. Txawm hais tias ob qho tib si tsis muaj zog acidic tom qab yaj hauv dej, kev txhim kho corrosion ntawm hydrogen sulfide thiab sulfur dioxide ntawm cov khoom sib txawv, yog li qhov kev sim no tsis tuaj yeem siv los hloov cov tshuaj hydrogen sulfide corrosion.
(2) Kev ntsuas ntsev
Txoj kev daws xaiv los ntawm ob txoj kev xeem sib txawv, kev ntsuas ntsev ua haujlwm yog qhov kev daws teeb meem ntawm cov sulfuric acid thiab nitric acid. Cov kev ntsuas sib txawv muaj cov kev daws teeb meem sib txawv hauv cov khoom lag luam, thiab cov teeb meem ib puag ncig tsim tawm tsis sib piv.
Lib sib xyaw ntws roj
|
Qhov ntsuas kub ntau |
+15 degree- +80 degree (kho tau) |
|
Kub Fluctuation |
0. 5 degree |
|
Kub Deviation |
± 2 0 degree |
|
Humidity Range |
30% ~ 98% FR (kho tau) |
|
Vaum kev sib cav |
±2% RH |
|
Temp-vaum |
+ (35 ± 2) Qib,(75 ± 3)%% RH + (40 ± 2) degree, (80 ± 3)% RH |
|
Huab cua hloov tus nqi |
3~5Sijhawm / Teev |
|
So2 lub siab |
1 ~ 35 ppm nrog kho tau |
|
H2s concentration |
10 ~ 30 ppm nrog kho tau |
|
Kev xav tsis muaj2 siab |
10 ~ 100 ppm nrog adjustable |
|
NH3 concentration |
1000 ~ 2000 PPM nrog Adjustable |
Yog tias koj txaus siab rau qhov nomixed flowing gas Chamberlossis lwm txoj kev ntsuas roj tsis pub dhau los, xav kom dawbtiv tauj pebRau cov lus hais zaum kawg!
