Cov nroj tsuag ua zaub mov khov yuav luag tsis sib xws siv ammonia-raws li lub tshuab tub yees. Txhua qhov chaw muaj ammonia, muaj qhov tseem ceeb "ticking time bomb." Txhawm rau txo qhov kev pheej hmoo no, thiab ua raws li txoj cai los ntawm Lub Xeev Kev Tswj Xyuas Kev Nyab Xeeb Kev Nyab Xeeb, cov nroj tsuag no tau txais thiab nruab cov kua ammonia leak detectors los tiv thaiv kev kub ntxhov xws li ammonia leaks.
Cov notsau ammonia gas detectorfeem ntau yog muab rau cov tub yees kev cob qhia ntawm cov chaw ua zaub mov thiab rau cov chaw tshuaj lom neeg. Vim tias ammonia ua rau khaus heev txawm tias me me ntawm kev nqus pa tuaj yeem ua rau muaj tshuaj lom - kev teeb tsa kom zoo ntawm cov khoom xau raws li kev cai hauv tebchaws yog qhov tseem ceeb rau kev nyab xeeb ntawm lub neej thiab khoom. Lawm, xaiv cov khoom tsim nyog tshaj plaws yog qhov tseem ceeb rau kev ua kom lub tswb nrov thaum muaj qhov xau tshwm sim. Muaj qhov sib txawv ntawm tus nqi tseem ceeb ntawm cov cuab yeej tsim los rau cov ammonia combustible thiab cov tshuaj lom ammonia. Lub ntsiab yog vim li cas rau qhov no yog nyob rau hauv sib txawv internal gas sensors siv. Hauv qhov xwm txheej zoo sib xws, lub tshuab hluav taws xob hluav taws xob (tsim los tiv thaiv kev lom neeg) yuav ua rau lub tswb nrov sai dua li lub ntsuas hluav taws xob catalytic combustion sensor, raws li yav dhau los muaj kev nkag siab zoo dua.
Ammonia (NH3) muaj qhov ceev ntawm 0.7710 thiab tus txheeb ze ntom ntom ntawm 0.5971 (air=1.00). Nws liquefies yooj yim rau hauv cov kua tsis muaj xim; pressurization ntawm chav tsev kub yog txaus rau induce liquefaction (qhov tseem ceeb kub: 132.4 degree; siab tseem ceeb: 11.2 MPa, los yog 112.2 atm). Nws qhov kub kub yog -33.5 degree. Nws kuj solidifies yooj yim rau hauv cov khoom zoo li daus, nrog lub melting point ntawm -77.75 degree. Thaum kub kub, nws decomposes rau hauv nitrogen thiab hydrogen thiab ua raws li ib tug txo tus neeg sawv cev; Nyob rau hauv lub xub ntiag ntawm ib tug catalyst, nws yuav oxidized rau nitric oxide. Nws yog siv los tsim cov kua nitrogen, aqueous ammonia, nitric acid, ammonium ntsev, thiab amines. Nws tuaj yeem tsim los ntawm kev sib txuas ncaj qha ntawm nitrogen thiab hydrogen; nws ua rau cov tshuaj kub hnyiab rau ntawm daim tawv nqaij, qhov muag, thiab cov mucous daim nyias nyias ntawm cov kab mob ua pa. Kev nqus pa ntau dhau tuaj yeem ua rau pulmonary edema thiab txawm tuag.
Thaum saib xyuas qhov kev pheej hmoo tawg, lub ntsuas hluav taws xob catalytic combustion yog siv nrog ntau yam ntawm 0-100% LEL (Lower Explosive Limit). Nws nta ua - nyob rau hauv qis thiab siab lub tswb pib: lub tswb qis ntawm 25% LEL thiab lub tswb siab ntawm 50% LEL. Qhov kev teeb tsa no yog tsim los saib xyuas cov pa roj qhov kev txwv.
Thaum saib xyuas kev toxicity, electrochemical sensor yog siv nrog ntau yam ntawm 0-100 ppm lossis 0-200 ppm. Nws nta ua- nyob rau hauv qis thiab siab lub tswb pib: lub tswb qis ntawm 25 ppm thiab lub tswb siab ntawm 50 ppm. Qhov kev teeb tsa no yog tsim los txhawm rau txheeb xyuas cov pa paug tawm.
Ob txoj kev sim siv ntau hom sensor. Nyob rau hauv cov xwm txheej ntawm ammonia xau, 0-100/200 ppm range sensor ua rau lub tswb ua ntej vim qhov siab dua ntawm electrochemical sensors. Qhov ntsuas 0–100% LEL faib cov pa hluav taws xob qis qis rau hauv 100 qhov sib npaug thiab siv lub tswb ceeb toom tshwj xeeb los tiv thaiv ntawm - qhov chaw tawg.
Ammonia muaj ob yam tseem ceeb: flammability thiab toxicity. Peb pom zoo kom cov neeg siv xav tau cov cuab yeej tshawb nrhiav ammonia rau cov kua ammonia leak detector. Cov qauv kev nyab xeeb rau cov tswb no feem ntau ua qhov tseem ceeb rau kev tshawb nrhiav tshuaj lom neeg, uas muaj kev nkag siab zoo dua -ntau zaus ntau dua - dua li cov catalytic combustion sensors siv los kuaj xyuas cov nplaim taws.