Nzira yekudzikisa sei chikanganiso chekuyera chinokonzerwa nekushandiswa kwe thermocouples?Chokutanga pane zvose, kuti tigadzirise kukanganisa, tinofanira kunzwisisa chikonzero chekukanganisa kuitira kuti tinyatsogadzirisa dambudziko racho!Ngatitarisei zvikonzero zvishoma zvekukanganisa.
Kutanga, ita shuwa kuti thermocouple yakaiswa nemazvo.Kana isina kuiswa zvakanaka, kukanganisa kuchaitika.Aya mapoinzi mana ekuisa thermocouple.
1. Kudzika kwekuisa kunofanira kuva kanenge ka8 dhayamita yechubhu inodzivirira;nzvimbo iri pakati pechubhu inodzivirira uye thermocouple madziro haina kuzadzwa ne insulating zvinhu, izvo zvinokonzeresa kupisa kupfachukira muchoto kana kutonhora kwemhepo kupindira, uye kuita thermocouple inodzivirira chubhu uye muchoto madziro gomba Iyo gap inovharwa ne insulating zvinhu senge. refractory dope kana tambo yekotoni kudzivirira convection yemhepo inopisa uye inotonhora, iyo inokanganisa kurongeka kwekuyera kwekushisa.
2. Mhepo inotonhora ye thermocouple iri pedyo zvakanyanya nechoto chevira, uye kutonhora kwechikamu chekuyera kwakanyanya;
3. Kuiswa kwe thermocouple kunofanira kuedza kudzivisa simba remagineti uye simba remagetsi rakasimba, saka thermocouple uye tambo yemagetsi haifaniri kuiswa pane imwe pombi kudzivirira kukanganisa kunokonzerwa nekuvhiringidza.
4.Thermocouples haigoni kuiswa munzvimbo iyo yakayerwa yepakati isingawanzoyerera.Paunenge uchishandisa thermocouple kuyera tembiricha yegasi muchubhu, iyo thermocouple inofanirwa kuiswa mune reverse kumhanya kutungamira uye kuve yakanyatso sangana negasi.
Chechipiri, kana uchishandisa thermocouple, shanduko yekudzivirira ye thermocouple zvakare chimwe chezvikonzero zvekukanganisa:
1. Kunyanyisa tsvina uye munyu slag pakati thermocouple electrode uye muchoto rusvingo kuchaita kuti kushayikwa kwekudzivirira pakati pe thermocouple electrode uye rusvingo rwevira, izvo zvisingazokonzereri kurasikirwa kweiyo thermoelectric kugona, asiwo kupindira, uye dzimwe nguva kukanganisa kunogona kusvika kumazana. zvemadhigirii Celsius.
2. Kukanganisa kunokonzerwa nekupisa kwekushisa kwe thermocouple:
Kuvapo kweguruva kana marasha emarasha pane thermocouple kudzivirira chubhu kunowedzera kupisa kwekupisa uye kunotadzisa kupisa conduction, uye kukosha kwechiratidzo chetembiricha kwakadzikira pane kukosha kwechokwadi kweiyo tembiricha yakayerwa.Naizvozvo, chengeta thermocouple yekudzivirira chubhu yakachena.
3. Zvikanganiso zvinokonzerwa ne inertia ye thermocouples:
Iyo inertia ye thermocouple inoita iyo inoratidza kukosha kwechiridzwa kusaririra kuseri kwekuchinja kwekuyerwa tembiricha, saka thermocouples ine tembiricha yakanyanya kusiyana uye madhayamita madiki ekudzivirira anofanirwa kushandiswa zvakanyanya sezvinobvira.Nekuda kweiyo hysteresis, tembiricha yekuchinja kwemhando yakaonekwa neiyo thermocouple idiki pane yechoto tembiricha inoshanduka.Nokudaro, kuitira kunyatsoyera kutonhora, zvinhu zvine maitiro akanaka ekupisa zvinofanira kusarudzwa, uye mashizha ekudzivirira ane masvingo akaonda uye zviduku zvemukati zvinofanira kusarudzwa.Mukuyera-chaiyo tembiricha kuyerwa, bare-waya thermocouples isina ekudzivirira maoko anowanzoshandiswa.
Muchidimbu, chikanganiso chekuyera che thermocouple chinogona kuderedzwa muzvikamu zvina: imwe nhanho ndeyekutarisa kana iyo thermocouple yakaiswa nenzira kwayo, yechipiri nhanho ndeyekutarisa kana iyo insulation ye thermocouple yakashandurwa, nhanho yechitatu ndeyekutarisa kana. iyo thermocouple yekudzivirira chubhu yakachena, uye danho rechina ndeye thermoelectric Kanganiso inokonzerwa neiyo inertia!
Nguva yekutumira: Zvita-17-2020