Unganciphisa kanjani iphutha lokulinganisa elibangelwa ukusetshenziswa kwama-thermocouples?Okokuqala, ukuze sixazulule iphutha, sidinga ukuqonda imbangela yephutha ukuze sixazulule ngempumelelo inkinga!Ake sibheke izizathu ezimbalwa zephutha.
Okokuqala, qiniseka ukuthi i-thermocouple ifakwe ngendlela efanele.Uma ingafakwanga kahle, kuzokwenzeka iphutha.Okulandelayo amaphuzu amane okufakwa kwe-thermocouple.
1. Ukujula kokufaka kufanele kube okungenani izikhathi ezingu-8 ububanzi bethubhu yokuzivikela;isikhala phakathi kweshubhu elivikelayo kanye nodonga lwe-thermocouple alugcwaliswanga ngezinto zokuvikela, okuzobangela ukuchichima ukushisa esithandweni somlilo noma ukungena komoya obandayo, futhi kwenze ishubhu lokuvikela le-thermocouple kanye nembobo yodonga lwesithando somlilo Igebe livinjiwe ngezinto zokuvikela ezifana udaka oluphikisayo noma intambo kakotini ukugwema ukugeleza komoya oshisayo noma obandayo, okuthinta ukunemba kokulinganisa izinga lokushisa.
2. Ukuphela okubandayo kwe-thermocouple kuseduze kakhulu nomzimba wesithando somlilo, futhi izinga lokushisa lengxenye yokulinganisa liphezulu kakhulu;
3. Ukufakwa kwe-thermocouple kufanele kuzanywe ukugwema insimu enamandla kazibuthe kanye nenkundla kagesi eqinile, ngakho-ke ikhebula le-thermocouple nelamandla akufanele lifakwe kupayipi elifanayo ukuze kugwenywe amaphutha abangelwa ukuphazamiseka.
4.Ama-Thermocouples awakwazi ukufakwa ezindaweni lapho isilinganiso esilinganisiwe singavamile ukugeleza.Uma usebenzisa i-thermocouple ukukala izinga lokushisa legesi ku-tube, i-thermocouple kufanele ifakwe endaweni yesivinini esiphambene futhi ixhumane ngokugcwele negesi.
Okwesibili, lapho usebenzisa i-thermocouple, ukuguqulwa kwe-insulation ye-thermocouple nakho kungenye yezizathu zephutha:
1. Ukungcola okweqile kanye ne-slag kasawoti phakathi kwe-electrode ye-thermocouple nodonga lwesithando somlilo kuzobangela ukungezwani okungalungile phakathi kwe-electrode ye-thermocouple nodonga lwesithando somlilo, okungeke kubangele ukulahlekelwa kwamandla kagesi we-thermoelectric, kodwa futhi nokuphazanyiswa, futhi ngezinye izikhathi iphutha lingafinyelela ngisho namakhulu. amadigri Celsius.
2. Iphutha elidalwe ukumelana nokushisa kwe-thermocouple:
Ukuba khona kothuli noma umlotha wamalahle kushubhu lokuvikela i-thermocouple kwandisa ukumelana nokushisa futhi kuvimbela ukuqhutshwa kokushisa, futhi inani lenkomba yezinga lokushisa liphansi kunevelu yangempela yezinga lokushisa elilinganisiwe.Ngakho-ke, gcina ithubhu lokuvikela i-thermocouple lihlanzekile.
3. Amaphutha abangwe yi-inertia ye-thermocouples:
I-inertia ye-thermocouple yenza inani elikhombisayo lensimbi lisale ngemuva koshintsho lwezinga lokushisa elilinganisiwe, ngakho-ke ama-thermocouple anomehluko omncane kakhulu wokushisa kanye namadayamitha amashubhu okuvikela amancane kufanele asetshenziswe ngangokunokwenzeka.Ngenxa ye-hysteresis, ibanga lokuguquguquka kwezinga lokushisa elitholwe i-thermocouple lincane kunebanga lokushintshashintsha kwezinga lokushisa kwesithando somlilo.Ngakho-ke, ukuze kulinganiswe ngokunembile izinga lokushisa, izinto ezine-conductivity ezishisayo kufanele zikhethwe, futhi imikhono evikelayo enezindonga ezincane kanye namadayimitha amancane angaphakathi kufanele kukhethwe.Esilinganisweni sokushisa esinembe kakhulu, ama-thermocouples angenalutho ngaphandle kwemikhono yokuzivikela avame ukusetshenziswa.
Ngamafuphi, iphutha lokulinganisa le-thermocouple lingancishiswa ezicini ezine: isinyathelo esisodwa ukuhlola ukuthi i-thermocouple ifakwe kahle yini, isinyathelo sesibili ukuhlola ukuthi ukufakwa kwe-thermocouple kushintshiwe, isinyathelo sesithathu ukuhlola ukuthi ithubhu yokuvikela i-thermocouple ihlanzekile, futhi isinyathelo sesine Iphutha le-thermoelectric elibangelwa ngisho ne-inertia!
Isikhathi sokuthumela: Dec-17-2020