Indlela yokunciphisa impazamo yokulinganisa okubangelwa ukusetyenziswa kwe-thermocouples?Okokuqala, ukuze sisombulule impazamo, kufuneka siqonde isizathu sempazamo ukuze sisombulule ngempumelelo ingxaki!Makhe sijonge izizathu ezimbalwa zempazamo.
Okokuqala, qiniseka ukuba i-thermocouple ifakwe ngokuchanekileyo.Ukuba ayifakwanga kakuhle, kuya kwenzeka impazamo.Ezi zilandelayo ziingongoma ezine zofakelo lwe-thermocouple.
1. Ubunzulu bokufaka kufuneka bube ubuncinane amaxesha angama-8 ububanzi betyhubhu yokukhusela;indawo phakathi kwetyhubhu yokukhusela kunye nodonga lwe-thermocouple alugcwaliswanga ngezinto ezikhuselayo, eziya kubangela ukuphuphuma kobushushu kwisithando somlilo okanye ukungena komoya obandayo, kwaye wenze ityhubhu yokukhusela ye-thermocouple kunye nomngxuma wodonga lwesithando somlilo Umsantsa uvalwe ngezinto zokukhusela ezifana udaka oluchasayo okanye intambo yomqhaphu ukuphepha ukuhanjiswa komoya oshushu nobandayo, ochaphazela ukuchaneka komlinganiselo wobushushu.
2. Isiphelo esibandayo se-thermocouple sisondele kakhulu kumzimba wesithando somlilo, kwaye ukushisa kwenxalenye yokulinganisa kuphezulu kakhulu;
3. Ukufakwa kwe-thermocouple kufuneka uzame ukuphepha intsimi yamagnetic enamandla kunye nentsimi yombane enamandla, ngoko ke i-thermocouple kunye nekhebula lamandla akufanele lifakwe kumbhobho ofanayo ukuphepha iimpazamo ezibangelwa ukuphazamiseka.
I-4.I-Thermocouples ayikwazi ukufakwa kwiindawo apho umlinganiselo olinganisiweyo unqabile ukuhamba.Xa usebenzisa i-thermocouple ukulinganisa ukushisa kwegesi kwi-tube, i-thermocouple kufuneka ifakwe kwi-reverse direction direction kwaye idibanise ngokupheleleyo negesi.
Okwesibini, xa usebenzisa i-thermocouple, utshintsho lwe-insulation ye-thermocouple sesinye sezizathu zempazamo:
1. Ukungcola okugqithisileyo kunye netyuwa ye-slag phakathi kwe-electrode ye-thermocouple kunye nodonga lwesithando somlilo kuya kubangela ukugquma okungahambi kakuhle phakathi kwe-electrode ye-thermocouple kunye nodonga lwesithando somlilo, okungayi kubangela ukulahlekelwa kwamandla ombane, kodwa kunye nokuphazamiseka, kwaye ngamanye amaxesha impazamo inokufikelela kumakhulu. ngezidanga zeCelsius.
2. Impazamo ebangelwe kukunganyangeki kwe-thermocouple:
Ubukho bothuli okanye umlotha wamalahle kwityhubhu yokukhusela i-thermocouple kwandisa ukuxhathisa kwe-thermal kwaye kuthintela ukuqhutyelwa kobushushu, kwaye ixabiso lesibonakaliso sokushisa liphantsi kunexabiso lokwenene lobushushu obulinganisiweyo.Ngoko ke, gcina ityhubhu yokukhusela i-thermocouple icocekile.
3. Iimpazamo ezibangelwa yi-inertia ye-thermocouples:
I-inertia ye-thermocouple yenza ukuba ixabiso elibonisayo le-instrument lag emva kokutshintsha kobushushu obulinganisiweyo, ngoko ke ii-thermocouples ezinomahluko omncinci kakhulu wokushisa kunye needamitha ezincinci zokukhusela kufuneka zisetyenziswe kangangoko kunokwenzeka.Ngenxa ye-hysteresis, uluhlu lokutshintsha kweqondo lokushisa elifunyenwe yi-thermocouple lincinci kunoluhlu lokutshintsha kweqondo lokushisa.Ngoko ke, ukwenzela ukulinganisa ngokuchanekileyo iqondo lokushisa, izinto eziphathekayo ezine-conductivity efanelekileyo ye-thermal kufuneka zikhethwe, kunye nemikhono ekhuselayo eneendonga ezincinci kunye neemitha ezincinci zangaphakathi kufuneka zikhethwe.Kwimilinganiselo yokushisa echanekileyo, i-thermocouples engenazintambo ezingenamikhono yokukhusela zihlala zisetyenziswa.
Ngamafutshane, impazamo yokulinganisa i-thermocouple inokuncitshiswa kwimiba emine: elinye inyathelo kukukhangela ukuba i-thermocouple ifakwe ngokuchanekileyo, inyathelo lesibini kukujonga ukuba ukufakwa kwe-thermocouple kutshintshiwe, inyathelo lesithathu kukukhangela ukuba ityhubhu yokukhusela i-thermocouple ihlambulukile, kwaye inyathelo lesine yimpazamo ye-thermoelectric ebangelwa yi-inertia!
Ixesha lokuposa: Dec-17-2020