Muinjini preheaters mune masensa anotarisisa tembiricha yeinotonhorera uye anodzora kushanda kwechigadzirwa.Verenga nezve izvo zvinopisa tembiricha sensors, ndeapi marudzi, kuti akarongwa sei uye anoshanda sei, maitiro ekuatsiva - verenga mune ino chinyorwa.
Chii chinonzi PZD tembiricha sensor?
Iyo PZD tembiricha sensor chinhu cheiyo control system yeinjini preheater (liquid injini heater, PZD), chinhu chinonzwa (kuyeresa transducer) yekuyera tembiricha yeinotonhorera.
Iyo data yakawanikwa uchishandisa tembiricha sensor inotumirwa kune yemagetsi control unit yeRailway, uye pahwaro hwavo iyo heater inovhurwa otomatiki, ichichinja maitiro ayo ekushanda, nguva dzose kana yekukurumidza kudzima.Mabasa ema sensors anoenderana nemhando yavo uye nzvimbo yekuisa muchitima.
Mhando, dhizaini uye musimboti wekushanda kwema sensors ekushisa
Temperature sensors inokamurwa kuita mapoka maererano nemusimboti wekushanda wakaiswa pasi muhwaro hwebasa ravo, rudzi rwekubuda chiratidzo, dhizaini uye kushanda.
Zvinoenderana nemusimboti wekushanda, masensa ndeaya:
● Resistive - dzinobva pane thermistor (thermistor), kupikisa kunoenderana nekupisa.Kana tembiricha ichichinja, kushorwa kwe thermistor kunowedzera kana kuderera, shanduko iyi inonyorwa uye inoshandiswa kuona tembiricha iripo;
● Semiconductor - inobva pane semiconductor madivayiri (diode, transistor kana zvimwe), maitiro e "pn" shanduko dzinoenderana nekupisa.Kana tembiricha ichichinja, ikozvino-voltage hunhu hwe "pn" junction (kutsamira kweiyo ikozvino pane voltage) inoshanduka, shanduko iyi inoshandiswa kuona tembiricha iripo.
Resistive sensors ndiyo yakapfava uye yakachipa, asi pakushanda kwavo zvinodikanwa kushandisa dunhu rekuyera rakasiyana, iro rinoda kuenzanisa uye kugadzirisa.Semiconductor sensors inoita kuti zvikwanise kugadzira kupisa-sensitive microcircuits ine yakabatanidzwa yekuyera dunhu inoburitsa chiratidzo chedhijitari pane inobuda.
Zvinoenderana nerudzi rwechiratidzo chekubuda, kune marudzi maviri ematembiricha sensors:
● Nekubuda kwechiratidzo cheanalog;
● Nekubuda kwechiratidzo chedigital.
Masensa akanyanya nyore ndeaya anogadzira chiratidzo chedhijitari - haatani kukanganisa kukanganisa uye kukanganisa, zviri nyore kugadzirisa nemaseketi emazuva ano edhijitari, uye chiratidzo chedhijitari chinoita kuti zvive nyore kugadzirisa sensor kuyera nguva dzakasiyana dzekushisa uye kune dzakasiyana. maitiro ekushanda.
Mazuva ano njanji ma sensors mazhinji akavakirwa pahwaro hwetembiricha-inonzwa microcircuits ine dijitari inobuda chiratidzo.Nheyo ye sensor yakadaro i-cylindrical kesi yakagadzirwa nesimbi isingadziviriri (kana ne-anti-corrosion coating), mukati mayo iyo inopisa-sensitive microcircuit yakaiswa.Kuseri kwekesi kune chiyero chemagetsi chekubatanidza kana kuti wiring harness inobuda ine chinongedzo (s) kumagumo.Nyaya yacho yakavharwa, inodzivirira chip kubva mumvura uye mamwe maitiro asina kunaka.Kunze kwechiitiko chacho, kune groove yekuisa rubber kana silicone O-ring, uye imwe gasket inogona kushandiswawo.Iyo resistive sensor yakagadzirwa zvakafanana, asi ine yakamanikana yakareba dzimba, pamagumo ayo pane inonzwiwa chinhu.
Scheme yechitima ine chiratidzo chekuisa nzvimbo dzekushisa uye overheating sensors
Kunyangwe dhizaini, PZD tembiricha sensors dzakakamurwa kuva marudzi matatu zvichienderana nekushanda kwawo:
● Temperature sensors - inoshandiswa kuyera kupisa kwemvura inobuda inoyerera kubva kune heater kusvika kune inotonhorera yemagetsi emagetsi;
● Overheating sensor - inoshandiswa kuyera kutonhora kwemvura inouya inopinda mumhepo inopisa kubva kune inotonhora yemagetsi emagetsi;
● Universal - inogona kushanda se sensor tembiricha yemvura inobuda uye inouya.
Iyo tembiricha sensor yemvura inobuda inoiswa padivi pepombi yemvura yekupisa yehiya, inoshandiswa neiyo control system yekubatidza hita nekudzima kana imwe tembiricha yejinjini yasvika (kazhinji iri pakati pe40 kusvika 80 ° C, zvichienderana nechirongwa chakasarudzwa uye nzira yekushandisa yechitima).Sezvo iyi sensor ichishandiswa kutarisa uye kudzora hita, inongonzi tembiricha sensor.
Iyo yekupisa sensor inoiswa padivi peiyo preheater mvura inlet, inoshandiswa kudzima otomatiki mudziyo kana inotonhorera yanyanya kupisa.Kana, nokuda kwechikonzero chimwe kana chimwe, chikwata chekutonga hachidzimi hita kana kutonhora kunosvika kupfuura 80 ° C, ipapo dunhu rekudzivirira rinotanga, iro rinovhara nechisimba preheater, kudzivirira injini kubva pakupisa.
Universal sensors inogona kuita mabasa ezvishandiso zvese zviri zviviri, iwo akaiswa pane exhaust kana inlet yemvura pombi, uye anogadziriswa zvinoenderana nemabasa aakapihwa.
Mune preheaters yemazuva ano, masensa maviri anoshandiswa - tembiricha uye kupisa.Chiratidzo chavo chinopihwa kune inoenderana mapimeti echitima chekudzora njanji, nepo chiratidzo chinobva kune tembiricha sensor (inobuda mvura) inogona kushandiswa kuratidza ruzivo pakuratidzwa kwepaneru yekudzora mukamuri yevatyairi / cab yemotokari, uye iyo chiratidzo kubva kune yakawandisa sensor inogona kushandiswa kuzivisa nezve injini kupisa.
Kusarudzwa uye kutsiva kwema sensors ekushisa
Maheater emazuva ano ane self-diagnostic masisitimu anozivisa mutyairi kusashanda kwema sensors ekushisa ane chiratidzo pachiratidziro che control panel kana nekupenya LED.Muzviitiko zvose, kana kukanganisa kunofungidzirwa, zvakakosha kutarisa kuvimbika kwekubatanidza magetsi uye sensor - maitiro ekuita izvi anoratidzwa mumirayiridzo yekushanda nekugadzirisa njanji.Kana kusashanda kunoonekwa, sensor yekushisa inofanira kuchinjwa, kana zvisina kudaro iyo heater haigone kushandiswa kazhinji.
Kuti utsive, zvinodikanwa kuti usarudze ma sensors eiyo catalog nhamba uye marudzi anoratidzwa mumirayiridzo yechitima.Nhasi, vazhinji vanogadzira vanopa analogues emidziyo inonyanya kufarirwa, iyo inobatsira zvikuru sarudzo yavo.Nekudaro, pakusarudza, haugone kuvimba nemutengesi usingafungi - unofanirwa kuve nechokwadi chekuti sensor nyowani ine mhando yakakodzera yekubatanidza uye ine gasket mukiti.
Kutsiviwa kwekushisa uye kupisa kwema sensors kunoitwa maererano nemirayiridzo yechitima, asi pasinei nemuenzaniso wekupisa, basa iri rinofanira kuitwa chete pane injini yakamira ine materminals akabviswa mubhatiri uye mushure mokubvisa mvura kubva pakutonhora. system.Paunenge uchiisa sensor nyowani, zvinodikanwa kuti utarise iyo polarity yekubatana kwemagetsi ekubatanidza, uye mushure mekuzadza iyo inotonhorera, mweya system.
Nechisarudzo chakakodzera uye kutsiva tembiricha sensor, injini inopisa ichashanda yakavimbika uye nemazvo mumamiriro ese ezvinhu.
Nguva yekutumira: Aug-21-2023