Intshayelelo yeMpumpu yokufunxa iiMveliso zePID ezitsha ((Izinzwa eziphuhlisiweyo)
I-GQ-AEC2232bX-P
Yintoni igesi yeVOC?
I-VOC sisishunqulelo se-volatile organic compounds. Ngokwengqiqo eqhelekileyo, i-VOC ibhekisa kumyalelo wezinto eziphilayo eziguquguqukayo; Nangona kunjalo, ngokumalunga nokukhuselwa kokusingqongileyo, kubhekiselele kwiklasi yee-organic compounds eziguquguqukayo ezisebenzayo neziyingozi. Amacandelo aphambili e-VOC aquka i-hydrocarbons, i-halogenated hydrocarbons, i-oxygen hydrocarbons, kunye ne-nitrogen hydrocarbons, kuquka i-benzene series compounds, i-organic chlorides, i-fluorine series, i-organic ketones, i-amines, i-alcohol, i-ethers, i-esters, i-acids, kunye ne-petroleum hydrocarbons. Kwaye iklasi yeekhompawundi ezibeka ingozi enkulu kwimpilo yabantu.
Zeziphi iingozi zegesi yeVOC?
Zeziphi iindlela zokubona iigesi zeVOC?
Uthini umgaqo we-PID detector?
Ukufunyanwa kwe-Photoionization (PID) kusebenzisa i-ultraviolet radiation eyenziwa yi-ionization yegesi ye-inert ngummandla wombane ophezulu-frequency ukuze i-ionize iimolekyuli zegesi phantsi kovavanyo. Ngokulinganisa ubungakanani obukhoyo obuveliswa yigesi ye-ionized, ukuxinwa kwegesi phantsi kovavanyo kufunyenwe. Emva kokuba ifunyenwe, i-ion iphinda idibanise kwi-gas yokuqala kunye nomphunga, okwenza i-PID ibe ngumtshini ongonakalisi.
Uluvo lwe-PID oluphuhlileyo
Intsimi yombane evuselelayo ekrelekrele
Ubomi obude
Ukusebenzisa imbuyekezo ekrelekrele ukonwabisa intsimi yombane, ukwandisa kakhulu ubomi beenzwa (ubomi> iminyaka emi-3)
Itekhnoloji yokutywina yamva nje
Ukuthembeka okuphezulu
Ifestile yokutywina ithatha imathiriyeli ye-magnesium fluoride edityaniswe nenkqubo entsha yokutywinwa, ngokufanelekileyo ukuthintela ukuvuza kwerhasi enqabileyo kunye nokuqinisekisa ixesha lokuphila lenzwa.
Umsesane wokuqokelela igesi yefestile
Uvakalelo oluphezulu kunye nokuchaneka okulungileyo
Kukho umsesane wokuhlanganisa igesi kwifestile yesibane se-UV, eyenza i-ionization yerhasi icokiseke ngakumbi kwaye ifunyanwe inovakalelo kwaye ichanekile.
Izinto zeTeflon
Ukumelana nokubola kunye nokuzinza okuqinileyo
Amalungu akhanyisa izibane ze-ultraviolet zonke zenziwe ngezinto zeTeflon, ezinamandla okuthintela ukubola kwaye zinokucotha i-oxidation nge-ultraviolet kunye ne-ozone.
Isakhiwo segumbi elitsha
Uzicoca kwaye uzigcine simahla
Uhlobo olutsha loyilo lwesakhiwo segumbi kunye noyilo olongezelelweyo lomjelo wokuhamba ngaphakathi kwinzwa, enokuthi ivuthele ngokuthe ngqo kwaye icoce inzwa, ukunciphisa ngokufanelekileyo ukungcola kwityhubhu yesibane kunye nokufezekisa ukugcinwa kwenzwa yasimahla.
Umtshina wokufunxa impompo eyenzelwe ngokukodwa inzwa entsha ye-PID ivumela inzwa ukuba ifezekise ukusebenza kakuhle, ibonelela ngeziphumo ezingcono zokubona kunye namava angcono omsebenzisi.
Inqanaba lokuchasana nomhlwa lifikelela kwi-WF2 kwaye liyakwazi ukuziqhelanisa nokufuma okuphezulu kunye nemekobume yokutshiza ngetyuwa ephezulu (Ukutshiza imathiriyeli yepeyinti ye-fluorocarbon echasene nokubola kwiqokobhe)
I-Advanteji 1: Akukho zilumkiso zobuxoki kwindawo yobushushu obuphezulu kunye nokufuma
Uvavanyo lufanise umfuniselo wokuthelekisa phakathi kwee-PID detectors zemveli kunye ne-PID sensor detectors ezimbini kwindawo yomswakama ophezulu we-55 ° C. Ingabonwa ukuba i-PID detectors yendabuko ineenguqu eziphawulekayo zokuxininisa kule ndawo kwaye zixhomekeke kwi-alamu zobuxoki. Kwaye i-Anxin inelungelo elilodwa lomenzi we-PID ye-sensor ye-PID ephindwe kabini ayiguquguquki kwaye izinzile kakhulu.
I-Advanteji 2: Ubomi obude kunye nokugcinwa kwasimahla
Uluvo olutsha lwe-PID
esweni oludibeneyo
Ukuhluzwa kwamanqanaba amaninzi
Qonda inzwa ye-PID kunye nobomi obungaphezulu kweminyaka emi-3 kunye nokugcinwa simahla ngexesha lobomi bayo
Ukuphumelela okubalulekileyo xa kuthelekiswa nobomi be-catalytic sensors
I-Advantage yesi-3: Uyilo lwemodyuli, ukufakela okufanelekileyo kunye nokugcinwa
Imodyuli ye-PID sensor, inokuvulwa ngokukhawuleza kwaye ikhutshwe ukuze igcinwe
Impompo yemodyuli, ngokukhawuleza ukuplaga kunye nokutshintsha
Imodyuli nganye iphumelele uyilo lwemodyuli, kwaye zonke iindawo ezisesichengeni kunye nezisebenzisekayo zitshintshwe ngokukhawuleza nangokufanelekileyo.
Umfuniselo wokuthelekisa, uthelekisa phezulu naphantsi
Ukuthelekisa kunye neempawu zoluvo lwe-PID ezingaphathwanga ngaphandle
Uvavanyo oluthelekisayo kunye nohlobo oluthile lwezixhobo zokubona kwimarike
IParameter yobuGcisa
| Umgaqo-siseko wokufunyanwa | Inzwa ye-PID ehlanganisiweyo | Indlela yokudluliselwa komqondiso | 4-20mA |
| Indlela yesampulu | Uhlobo lokufunxa impompo (eyakhelwe ngaphakathi) | Ukuchaneka | ±5%LEL |
| Umbane osebenzayo | I-DC24V±6V | Ukuphindaphinda | ±3% |
| Ukusetyenziswa | 5W (DC24V) | Umgama wothumelo lomqondiso | ≤1500M (2.5mm2) |
| Uluhlu loxinzelelo | 86kPa～106kPa | Ubushushu bokusebenza | -40 ~ 55℃ |
| Uphawu lobungqina bokudubula | ExdⅡCT6 | Uluhlu lokufuma | ≤95%, akukho condensation |
| Izinto zeqokobhe | Cast ialuminiyam (ipeyinti yefluorocarbon echasene nokubola) | Ibakala lokhuseleko | IP66 |
| Ujongano lombane | NPT3/4＂Intambo yombhobho (ngaphakathi) | ||
Ngokumalunga nemibuzo nge-PID detectors?
Impendulo: Imveliso eqaliswe ngeli xesha ithatha indawo yenkampani yethu yamva nje iphuhliswe i-PID sensor, etshintshe isakhiwo segumbi lomoya (uyilo lwesiteshi sokuhamba) kunye nemodi yokunikezelwa kwamandla. Uyilo olukhethekileyo lomjelo wokuhamba lunokunciphisa ungcoliseko lokukhanya kwaye lufezekise ukusula iibhubhu zesibane zasimahla ngokucoca amanqanaba amaninzi. Ngenxa yemowudi yonikezelo lwamandla olwakhelwe ngaphakathi kwe-sensor, ukusebenza kwangethuba kugudileyo kwaye kukrelekrele ngakumbi, kwaye ubhaqo oludityanisiweyo kunye ne-sensor ezimbini lufezekisa ubomi obungaphezulu kweminyaka emi-3.
Impendulo: Imisebenzi ephambili yebhokisi yemvula kukuthintela amanzi emvula kunye nomphunga ovela kwimizi-mveliso ukuba uchaphazele ngqo umtshini. 2. Thintela impembelelo yobushushu obuphezulu kunye neendawo zokufuma kwii-PID detectors. 3. Vimbela uthuli emoyeni kwaye ulibazise ubomi besihluzi. Ngokusekelwe kwezi zizathu zingasentla, sixhobise ibhokisi yokuthintela imvula njengomgangatho. Ngokuqinisekileyo, ukongeza ibhokisi yemvula ayiyi kuba nefuthe elibalulekileyo kwixesha lokuphendula kwegesi.
Impendulo: Kufuneka kuqatshelwe ukuba i-3 yeminyaka yokugcina ikhululekile ithetha ukuba i-sensor ayifuni ukugcinwa, kwaye isihluzo sisafuna ukugcinwa. Sicebisa ukuba ixesha lokugcinwa kwesihluzo lidla ngokuba ziinyanga ezi-6-12 (lifutshane ukuya kwiinyanga ezi-3 kwiindawo ezirhabaxa zokusingqongileyo)
Impendulo: Ngaphandle kokusetyenziswa kwee-sensor ezimbini zokubona ngokudibeneyo, inzwa yethu entsha inokufezekisa ubomi be-2 iminyaka, sibonga kwi-sensor yethu ye-PID esanda kuphuhliswa (iteknoloji enelungelo lobunikazi, umgaqo oqhelekileyo unokubonwa kwicandelo lesibini). Imowudi yokusebenza ye-semiconductor + PID yokufumanisa ngokudibeneyo inokufezekisa ubomi beminyaka emi-3 ngaphandle kweengxaki.
Impendulo: a. I-Isobutene inamandla aphantsi e-ionization, kunye ne-Io ye-9.24V. Inokuthi i-ionized yi-UV izibane kwi-9.8eV, 10.6eV, okanye i-11.7eV. b. I-Isobutene yityhefu ephantsi kunye negesi kwindawo yokushisa. Njengerhasi yokulinganisa, ibeka ingozi encinci kwimpilo yabantu. c. Ixabiso eliphantsi, kulula ukulifumana
Impendulo: Ayiyi konakaliswa, kodwa ukugxininiswa okuphezulu kwegesi ye-VOC kunokubangela ukuba i-VOC igesi ibambelele kwifestile kunye ne-electrode ixesha elifutshane, okubangelwa ukungaphenduli kwenzwa okanye ukunciphisa uvakalelo. Kuyimfuneko ukucoca ngokukhawuleza isibane se-UV kunye ne-electrode nge-methanol. Ukuba kukho ubukho bexesha elide legesi ye-VOC edlula i-1000PPM kwindawo, ukusebenzisa i-PID sensors akubizi mali kwaye i-non-dispersive infrared sensors kufuneka isetyenziswe.
Impendulo: Isisombululo esiqhelekileyo ukuba i-PID inokusifumana yi-0.1ppm isobutene, kwaye i-sensor ye-PID engcono kakhulu inokufezekisa i-10ppb isobutene.
Ubunzulu bokukhanya kwe-ultraviolet. Ukuba ukukhanya kwe-ultraviolet kunamandla, kuya kuba neemolekyuli ezininzi zegesi ezinokuthi zenziwe ionized, kwaye isisombululo siya kuba ngcono.
Ummandla okhanyayo wesibane se-ultraviolet kunye nommandla we-electrode yokuqokelela. Ummandla omkhulu okhanyayo kunye nendawo enkulu yokuqokelela i-electrode ngokwemvelo iphumela kwisisombululo esiphezulu.
I-offset yangoku ye-preamplifier. Incinci i-offset current ye-preamplifier, iyancipha i-current current. Ukuba i-bias current ye-amplifier yokusebenza inkulu, isignali yangoku eluncedo ebuthathaka iya kuntywiliselwa ngokupheleleyo kwi-offset yangoku, kwaye isisombululo esihle asinakufezekiswa ngokwemvelo.
Ukucoceka kwebhodi yesekethe. Iisekethe ze-analog zithengiswa kwiibhodi zeesekethe, kwaye ukuba kukho ukuvuza okubalulekileyo kwibhodi yesiphaluka, imisinga ebuthathaka ayinakuhlukaniswa.
Ubungakanani bokuchasana phakathi kwangoku kunye nombane. I-sensor ye-PID ngumthombo wangoku, kwaye yangoku inokunyuswa kuphela kwaye ilinganiswe njenge-voltage ngokusebenzisa i-resistor. Ukuba ukuchasana kuncinci kakhulu, utshintsho oluncinci lwamandla alukwazi ukufezekiswa ngokwemvelo.
Isisombululo se-analog-to-digital converter ADC. Ukuphakama kwesisombululo se-ADC, encinci umqondiso wombane onokusonjululwa, kwaye ngcono isisombululo se-PID.
