Nplaim tswj sensors - nta, ntaus ntawv thiab lub hauv paus ntsiab lus ntawm kev ua haujlwm

2024 Tus sau: Howard Calhoun | [email protected]. Kawg hloov kho: 2023-12-17 10:28

Vim tias lub tshuab hluav taws xob tau siv dav hauv kev lag luam los tsim ntau yam khoom, nws tseem ceeb heev los saib xyuas nws txoj haujlwm ruaj khov. Yuav kom ua tau raws li qhov yuav tsum tau ua, yuav tsum siv lub ntsuas hluav taws xob. Ib txheej ntawm cov sensors tso cai rau koj los tswj lub xub ntiag, lub hom phiaj tseem ceeb ntawm kev ua haujlwm yog kom muaj kev nyab xeeb ntawm ntau hom kev teeb tsa uas hlawv cov khoom, kua lossis roj gaseous.

Instrument description

Dhau li ntawm qhov tseeb tias cov nplaim hluav taws xob tswj tau koom nrog ua kom muaj kev nyab xeeb ntawm lub qhov cub, lawv kuj koom nrog qhov hluav taws kub. Cov kauj ruam no tuaj yeem ua tiav los yog semi-automatically. Thaum ua haujlwm nyob rau hauv tib hom, lawv xyuas kom meej tias cov roj hlawv ua raws li txhua yam kev xav tau thiab kev tiv thaiv. Hauv lwm lo lus, kev ua haujlwm tas mus li, kev ntseeg siab, thiab kev nyab xeeb ntawm kev ua haujlwm ntawm cov tshuab hluav taws xob yog nyob ntawm qhov tseeb thiab tsis muaj teeb meem kev ua haujlwm ntawm cov nplaim taws tswj cov sensors.

Control method

Txog hnub, ntau yamsensors tso cai rau koj siv ntau txoj kev tswj. Piv txwv li, txhawm rau tswj cov txheej txheem ntawm cov roj hluav taws xob hauv cov kua lossis lub xeev gaseous, kev tswj ncaj qha thiab tsis ncaj tuaj yeem siv. Thawj txoj kev suav nrog txoj kev xws li ultrasonic lossis ionization. Raws li rau txoj kev thib ob, nyob rau hauv cov ntaub ntawv no, cov nplaim taws relay-tswj sensors yuav tswj me ntsis ntau qhov sib txawv - siab, nqus tsev, thiab lwm yam. Raws li cov ntaub ntawv tau txais, lub kaw lus yuav txiav txim siab seb cov nplaim taws ua tau raws li cov txheej txheem teev tseg.

Piv txwv li, hauv cov cua kub me me, nrog rau cov cua sov hauv tsev, cov khoom siv yog siv los ntawm photoelectric, ionization lossis thermometric nplaim taws tswj txoj kev.

Photoelectric method

Hnub no, nws yog txoj kev tswj hwm photoelectric uas feem ntau siv. Nyob rau hauv rooj plaub no, nplaim taws tswj cov cuab yeej, nyob rau hauv cov ntaub ntawv no yog cov duab sensors, sau cov degree ntawm pom thiab pom tsis pom nplaim hluav taws xob. Hauv lwm lo lus, cov cuab yeej ntes cov khoom kho qhov muag.

Raws li rau cov khoom siv lawv tus kheej, lawv hnov mob rau qhov kev hloov pauv ntawm kev siv lub teeb tawm, uas tawm nplaim taws. Nplaim taws tswj sensors, nyob rau hauv cov ntaub ntawv no photosensors, yuav txawv ntawm ib leeg nyob rau hauv xws li ib tug parameter raws li lub wavelength tau txais los ntawm cov nplaim taws. Nws yog ib qho tseem ceeb heev uas yuav tsum tau coj cov cuab yeej no mus rau hauv tus account thaum xaiv ib qho cuab yeej, txij li cov yam ntxwv ntawm cov nplaim hluav taws kub yog txawv heev nyob ntawmntawm hom roj twg uas hlawv hauv qhov cub. Thaum lub sij hawm combustion ntawm roj, muaj peb spectra nyob rau hauv uas hluav taws xob tsim - cov no yog infrared, ultraviolet thiab pom. Lub wavelength tuaj yeem yog los ntawm 0.8 txog 800 microns, yog tias peb tham txog hluav taws xob infrared. Qhov pom yoj tuaj yeem yog los ntawm 0.4 txog 0.8 microns. Raws li rau cov hluav taws xob ultraviolet, qhov no yoj tuaj yeem muaj qhov ntev ntawm 0.28 - 0.04 microns. Lawm, nyob ntawm qhov xaiv spectrum, cov duab sensors kuj yog infrared, ultraviolet lossis luminosity sensors.

Txawm li cas los xij, lawv muaj qhov tsis zoo, uas yog nyob rau hauv qhov tseeb tias cov khoom siv tau qis dhau qhov kev xaiv tsis zoo. Qhov no yog tshwj xeeb tshaj yog pom tau hais tias lub boiler muaj peb los yog ntau tshaj burners. Nyob rau hauv rooj plaub no, muaj feem ntau ntawm cov teeb liab yuam kev, uas tuaj yeem ua rau muaj xwm txheej kub ntxhov.

Ionization method

Txoj kev thib ob nrov tshaj plaws yog ionization. Nyob rau hauv rooj plaub no, lub hauv paus ntawm txoj kev yog kev soj ntsuam ntawm cov khoom hluav taws xob ntawm cov nplaim taws. Nplaim taws tswj sensors nyob rau hauv cov ntaub ntawv no yog hu ua ionization sensors, thiab lub hauv paus ntsiab lus ntawm lawv cov hauj lwm yog raws li nyob rau hauv lub fact tias lawv ntes cov hluav taws xob yam ntxwv ntawm cov nplaim taws.

Txoj kev no muaj qhov zoo dua qub, uas yog txoj kev yuav luag tsis muaj inertia. Hauv lwm lo lus, yog tias cov nplaim taws tawm mus, cov txheej txheem ntawm ionization ntawm qhov hluav taws kub ploj tam sim ntawd, uas tso cai rau lub tshuab tsis siv neeg tam sim ntawd nres cov pa roj rau cov burners.

Device kev ntseeg siab

Kev ntseeg tau yog qhov tseem ceeb ntawm cov khoom siv no. Txhawm rau kom ua tiav qhov kev ua tau zoo tshaj plaws, nws yog ib qho tsim nyog tsis yog xaiv cov cuab yeej zoo xwb, tab sis kuj yuav tsum tau nruab nws kom raug. Nyob rau hauv rooj plaub no, nws yog ib qho tseem ceeb tsis tsuas yog xaiv txoj kev mounting kom raug, tab sis kuj yog qhov chaw mounting. Lawm, txhua hom sensor muaj nws qhov zoo thiab qhov tsis zoo, tab sis yog tias koj xaiv qhov chaw teeb tsa tsis raug, piv txwv li, qhov tshwm sim ntawm qhov teeb meem tsis tseeb yuav nce ntxiv.

Txhawm rau xaus, peb tuaj yeem hais tias rau qhov siab tshaj plaws kev ntseeg tau, nrog rau txhawm rau txo tus naj npawb ntawm boiler shutdowns vim muaj teeb meem yuam kev, nws yog ib qho tsim nyog yuav tsum tau nruab ntau hom sensors uas yuav siv ntau txoj kev sib txawv. ntawm nplaim taws tswj. Hauv qhov no, kev ntseeg tau ntawm tag nrho cov txheej txheem yuav siab heev.

khoom siv sib xyaw

Qhov kev xav tau ntawm kev ntseeg siab tshaj plaws tau ua rau kev tsim khoom ntawm Archives ua ke nplaim hluav taws xob tswj relays, piv txwv li. Qhov sib txawv tseem ceeb ntawm cov khoom siv ib txwm siv yog tias lub cuab yeej siv ob txoj hauv kev sib txawv ntawm kev sau npe - ionization thiab kho qhov muag.

Raws li rau kev ua haujlwm ntawm qhov kho qhov muag, qhov no nws xaiv thiab nthuav tawm cov teeb liab sib txawv, uas qhia txog cov txheej txheem combustion tsis tu ncua. Thaum lub sij hawm hlawv ntawm lub burner, cov nplaim taws tsis ruaj khov thiab pulsates, cov ntaub ntawv raug kaw los ntawm cov duab sensor built-in. Tsaulub teeb liab raug xa mus rau microcontroller. Qhov thib ob sensor yog hom ionization, uas tuaj yeem tau txais lub teeb liab tsuas yog tias muaj thaj tsam ntawm cov hluav taws xob conductivity ntawm cov electrodes. Thaj chaw no tsuas muaj nyob rau ntawm qhov muaj nplaim taws xwb.

Yog li, nws hloov tawm tias lub cuab yeej ua haujlwm hauv ob txoj hauv kev los tswj cov nplaim taws.

Sensors cim SL-90

Hnub no, ib qho ntawm ntau yam duab thaij duab sensors uas tuaj yeem ntes infrared hluav taws xob los ntawm nplaim taws yog SL-90 nplaim taws tswj relay. Cov cuab yeej no muaj microprocessor. Lub semiconductor infrared diode ua lub luag haujlwm tseem ceeb, uas yog, tus txais hluav taws xob.

Lub hauv paus ntawm cov cuab yeej no raug xaiv raws li txoj hauv kev uas lub cuab yeej tuaj yeem ua haujlwm ib txwm nyob ntawm qhov kub ntawm -40 txog +80 degrees Celsius. Yog tias koj siv lub flange tshwj xeeb txias txias, ces koj tuaj yeem khiav lub sensor ntawm qhov kub txog +100 degrees Celsius.

Raws li rau cov teeb liab tso zis ntawm SL-90-1E nplaim hluav taws xob tswj sensor, qhov no tsis yog tsuas yog ib qho taw qhia LED, tab sis kuj "qhuav" hom relay hu. Qhov siab tshaj plaws hloov hluav taws xob ntawm cov neeg no yog 100 W. Lub xub ntiag ntawm ob lub tso zis tso zis tso cai rau siv hom kev sib tw no hauv yuav luag txhua qhov kev tswj hwm tsis siv neeg.

Burner tswj

Fairly common nplaim taws tswj sensorsCov khoom siv hluav taws xob steel LAE 10, LFE10. Raws li cov khoom siv thawj zaug, nws yog siv rau hauv cov tshuab uas siv roj ua kua. Lub sensor thib ob yog ntau yam thiab tuaj yeem siv tsis tau nrog cov kua roj, tab sis kuj nrog cov roj av.

Feem ntau ob qho ntawm cov khoom siv no tau siv hauv cov tshuab xws li lub tshuab hluav taws xob ob lub tshuab hluav taws xob. tuaj yeem siv tau zoo hauv cov roj hluav taws xob hluav taws xob hluav taws xob hluav taws xob.

Ib qho tshwj xeeb ntawm cov cuab yeej no yog tias lawv tuaj yeem ntsia tau rau hauv txhua txoj haujlwm, nrog rau txuas ncaj qha rau lub tshuab hluav taws xob nws tus kheej, ntawm cov tswj vaj huam sib luag lossis ntawm lub tshuab hluav taws xob. Thaum txhim kho cov cuab yeej no, nws yog ib qho tseem ceeb heev kom nteg cov hluav taws xob cables kom zoo kom lub teeb liab mus txog lub receiver yam tsis tau poob los yog distortion. Yuav kom ua tiav qhov no, nws yog ib qho tsim nyog yuav tsum tau nteg cov cables ntawm qhov system cais los ntawm lwm cov kab hluav taws xob. Koj kuj yuav tsum tau siv lub cable cais rau cov tswj sensors.