ʻO nā Thermocouple ka mea nui e ana i ka wela ma nā ʻoihana like ʻole. Ma waena o nā ʻano like ʻole, ʻo nā thermocouple platinum-rhodium e kū nei no kā lākou hana kiʻekiʻe a me ka pololei. E ʻike kēia ʻatikala i nā kikoʻī o nā thermocouple platinum-rhodium, me kā lākou hoʻohana ʻana, ka uea thermocouple maikaʻi loa, a me ka haku ʻana o nā thermocouple S-type.
He aha nā ʻano o nā thermocouple platinum-rhodium?
ʻEkolu mau ʻano nui onā thermocouple platinum-rhodium: ʻAno-B, ʻano-R, a ʻano-S. ʻIke ʻia kēia mau thermocouple no ko lākou kūpaʻa wela kiʻekiʻe a hoʻohana pinepine ʻia i nā noi e koi ana i ke ana wela kūpono.
1. ʻAno B (Platinum 30% Rhodium / Platinum 6% Rhodium): Ka wela wela: 0 ° C a hiki i 1700 ° C, Nā hiʻohiʻona: Paʻa loa nā thermocouples Type B a hiki ke ana i nā wela kiʻekiʻe loa. Hoʻohana maʻamau i nā umu wela a me nā kiln.
2. Type R (Platinum 13% Rhodium / Platinum): Ka wela wela: -50 ° C i 1600 ° C, Nā hiʻohiʻona: Type R thermocouples e hahau i kahi kaulike maikaʻi ma waena o ka uku a me ka hana. Hoʻohana ʻia lākou i nā ʻano hana ʻoihana like ʻole me ka hana aniani a me ka hana metala.
3. Keʻano S (Platinum 10% Rhodium / Platinum): Ka wela wela: -50 ° C a hiki i 1600 ° C, Nā hiʻohiʻona: Type S thermocouples uaʻikeʻia no ko lākou pololei a me ke kūpaʻa. Hoʻohana pinepine ʻia lākou i nā laboratories a me nā ʻoihana kahi mea koʻikoʻi ka mālama ʻana i ka wela.
He aha ke kelepona thermocouple maikaʻi loa?
ʻO ke kumu hoʻohālikelike no ka hoʻoholo ʻana i ka maikaʻi o kahi huahana aia i kona maikaʻi. Loaʻa nā huahana like ʻole i nā kūlana maikaʻi like ʻole, a hiki ke hoʻokolokolo ʻia ka maikaʻi o ka uea thermocouple platinum-rhodium mai nā waiwai ʻehā. ʻO ka mea mua, ʻo ka uea platinum-rhodium he kūpaʻa wela kiʻekiʻe a hiki ke kū i nā wela kiʻekiʻe loa me ka ʻole o ka degradation. Mālama kēia kūpaʻa i ke ana wela kūpono ma luna o kahi ākea ākea. ʻO ka lua, hāʻawi nā thermocouple platinum-rhodium i ke ana wela kūpono, e hoʻolilo iā lākou i mea kūpono no nā noi e koi ana i ka pololei pololei. Eia kekahi, loaʻa i ka platinum a me ka rhodium ke kūpaʻa corrosion kiʻekiʻe, e hōʻoiaʻiʻo ana i ke ola lawelawe a me ka hilinaʻi o ka uea thermocouple i nā wahi paʻakikī. ʻO ka lōʻihi o ka platinum-rhodium thermocouple wire i kūpono no ka hoʻohana lōʻihi i nā noi ʻoihana, e hōʻemi ana i ka pono no ka hoʻololi pinepine. Inā kiʻekiʻe loa nā koi no ke ana ʻana i ka pololei, kūpaʻa, kūpaʻa oxidation, a me nā mea ʻē aʻe, ʻo ka platinum-rhodium thermocouple wire ka koho maikaʻi loa.
He aha ka hoʻohana ʻana o ka uwea thermocouple platinum?
Uea thermocouple platinumHe mea nui ia i ke kūkulu ʻana i nā thermocouple platinum-rhodium. ʻO kāna mau waiwai kūʻokoʻa e hana i ka uea thermocouple platinum-rhodium i kūpono no nā ʻano hana wela kiʻekiʻe. Ma ka ʻoihana aerospace, hoʻohana ʻia ka uea thermocouple platinum e ana i ka mahana o nā mīkini jet a me nā mea wela kiʻekiʻe. He mea koʻikoʻi ke ana wela kūpono i ka palekana a me ka hana ʻana o nā lako aerospace. Hoʻohana ʻia ka uea Platinum thermocouple i nā umu ahi e nānā a mālama i nā wela kiʻekiʻe. ʻO kā lākou kūpaʻa a me ka pololei e hōʻoia i ka holo ʻana o ka umu i loko o ka pae wela e pono ai, e hoʻomaikaʻi ai i ka maikaʻi a me ka maikaʻi o ka huahana. Eia kekahi, pono ke kaʻina hana aniani i ka mana wela kūpono, a hoʻohana ʻia ka uea thermocouple platinum e nānā i ka mahana o nā umu aniani e hōʻoia ai i ka hana ʻana o ke aniani kiʻekiʻe. Ma ka noiʻi ʻepekema, pono ke ana wela kūpono no nā hoʻokolohua a me ka hōʻiliʻili ʻikepili. Hoʻohana ʻia ʻo Platinum thermocouple uea e ana i ka mahana ma nā ʻano hoʻokolohua like ʻole i loko o ka hale hana, e hāʻawi ana i ka ʻikepili hilinaʻi a pololei.
ʻO nā thermocouple Platinum-rhodium (me nā ʻano B, R, a me S) he mau mea hana koʻikoʻi no ke ana pono ʻana i ka mahana ma nā noi wela kiʻekiʻe. Ke koho ʻana i ka uea thermocouple maikaʻi loa, ʻo ka platinum-rhodium thermocouple ka mea mua loa no ka hana maikaʻi ʻana i nā wahi paʻakikī. He kuleana koʻikoʻi ka Platinum-rhodium thermocouples i nā ʻoihana like ʻole, e hāʻawi ana i ka pololei a me ke kūpaʻa e pono ai no nā noi wela kiʻekiʻe.
Ka manawa hoʻouna: Sep-20-2024