Chingwe cha thermocouple ndi mtundu wa chingwe chomwe chimagwiritsidwa ntchito kulumikiza thermocouple ku chida choyezera kapena makina owongolera
Ndi gawo lofunikira kwambiri la njira yoyezera kutentha kwa thermocouple.
Malinga ndi mtundu wa thermocouple:
* Chingwe cha thermocouple cha Type K: Choyendetsa chabwino ndi chromel alloy, ndipo negative ndi alumel. Chimayesa kutentha kwambiri kuyambira -200°C mpaka +1350°C ndipo ndi chodalirika kwambiri, chimagwiritsidwa ntchito kwambiri m'mafakitale a nyukiliya, m'mafakitale oyeretsera mafuta, ndi ntchito zina zamafakitale.
* Chingwe cha thermocouple cha Type J: Ma conductor amapangidwa ndi chitsulo ndi constantan. Ndi njira yotsika mtengo yokhala ndi kutentha kwa -40°C mpaka 760°C, komwe kumagwiritsidwa ntchito kwambiri m'mafakitale osiyanasiyana komwe kuyeza kutentha kumafunika mkati mwa kutentha kumeneku.
* Chingwe cha thermocouple cha Type T: Ma conductors ndi amkuwa ndi constantan. Ndi oyenera kuyeza kutentha kochepa, ndi kutentha kwa -200°C mpaka +350°C. Nthawi zambiri amagwiritsidwa ntchito mu mafiriji ndi kukonza chakudya chifukwa cha kugwira ntchito bwino kwambiri m'malo otentha pang'ono.
* Chingwe cha thermocouple cha Type E: Ma conductors ndi nickel-chromium ndi constantan. Ndiwolondola kwambiri pakati pa ma thermocouple wamba, ndipo kutentha kwake kumakhala pakati pa -50°C mpaka +740°C. Ndiwoyenera kugwiritsa ntchito zomwe zimafuna kulondola kwambiri.
* Chingwe cha thermocouple cha Type N: Ma conductor ndi nicrosil ndi nisil. Ndi analogue yapamwamba komanso yokwera mtengo ya Type K, yokhala ndi kutentha kwa -270°C mpaka +1300°C, yomwe imapereka kulumikizana kwabwino, kukhudzidwa kwambiri, komanso kukhazikika.
* Chingwe cha thermocouple cha Type B: Chili ndi miyendo iwiri ya platinum-rhodium ndipo kutentha kwake kumakhala kokwera kwambiri kuyambira 600 mpaka 1704°C, zomwe zimapangitsa kuti chikhale chabwino kwambiri kugwiritsidwa ntchito m'mafakitale agalasi ndi mafakitale ena omwe amatentha kwambiri.
* Chingwe cha thermocouple cha Type R: Chilinso ndi kutentha kwakukulu kuyambira 0°C mpaka 1450°C, chokhala ndi mwendo umodzi wa platinamu-rhodium. Chimagwiritsidwa ntchito m'malo ena otentha kwambiri komwe kumafunika kulondola kwambiri komanso kukhazikika.
* Chingwe cha thermocouple cha Type S: Choyendetsa chabwino ndi platinum-rhodium alloy, ndipo negative ndi platinum yeniyeni. Chili ndi kulondola kwakukulu komanso kukhazikika, ndipo chimagwiritsidwa ntchito m'malo otentha kwambiri. Nthawi zambiri chimagwiritsidwa ntchito m'ma laboratories ndi ntchito zina zoyezera kutentha kwambiri.
TANKII imapanga makamakalembani KX,NX,EX,JX,NC,TX,SC/RC,KCA,KCBwaya wolipirira thermocouple, ndipo amagwiritsidwa ntchito pazida zoyezera kutentha ndi zingwe. Zinthu zathu zolipirira thermocouple zonse zimapangidwa kuti zigwirizane ndiMa waya a GB/T 4990-2010 a alloy owonjezera ndi kubweza zingwe za thermocouples' (Chinese National Standard), komanso IEC584-3 'Thermocouple part 3-compensating wire' (International Standard)• Kutentha – Zoyatsira gasi mu uvuni • Zoziziritsira – Mafiriji • Chitetezo cha injini – Kutentha ndi kutentha pamwamba • Kulamulira kutentha kwambiri – Kuponya chitsulo