Iithermocouples zizixhobo ezibalulekileyo zokulinganisa ubushushu kumashishini ahlukeneyo. Phakathi kweentlobo ezahlukeneyo, iithermocouples zeplatinum-rhodium zibalaseleyo ngokusebenza kwazo okusemgangathweni ophezulu kunye nokuchaneka kwazo. Eli nqaku liza kujonga iinkcukacha zeethermocouples zeplatinum-rhodium, kuquka ukusetyenziswa kwazo, ucingo lwethermocouple olungcono, kunye nokwakheka kweethermocouples zohlobo lwe-S.
Ziziphi iintlobo ze-thermocouples zeplatinum-rhodium?
Kukho iintlobo ezintathu eziphambili zeii-thermocouples zeplatinum-rhodium: Uhlobo lwe-B, uhlobo lwe-R, kunye nohlobo lwe-S. Ezi thermocouples zaziwa ngokuzinza kwazo kumaqondo obushushu aphezulu kwaye zihlala zisetyenziswa kwizicelo ezifuna ukulinganiswa kobushushu ngokuchanekileyo.
1. Uhlobo B (Platinum 30% Rhodium/Platinum 6% Rhodium): Ubushushu: 0°C ukuya kwi-1700°C, Iimpawu: Iithermocouples zohlobo B zizinzile kakhulu kwaye zinokulinganisa ubushushu obuphezulu kakhulu. Zisetyenziswa rhoqo kwiifurniture nakwii-ovens ezinobushushu obuphezulu.
2. Uhlobo R (Platinum 13% Rhodium/Platinum): Ubushushu: -50°C ukuya kwi-1600°C, Iimpawu: Uhlobo R thermocouples lunebhalansi elungileyo phakathi kweendleko kunye nokusebenza. Zisetyenziswa kwiintlobo ngeentlobo zezicelo zoshishino kuquka ukuveliswa kweglasi kunye nokulungiswa kwesinyithi.
3. Uhlobo S (Platinum 10% Rhodium/Platinum): Ubushushu: -50°C ukuya kwi-1600°C, Iimpawu: Ii-thermocouples zohlobo S zaziwa ngokuchaneka kwazo nokuzinza. Zisetyenziswa kakhulu kwiilabhoratri nakwimizi-mveliso apho ulawulo oluchanekileyo lobushushu lubaluleke kakhulu.
Yeyiphi intambo ye-thermocouple engcono kakhulu?
Eyona nto iphambili ekugwebeni umgangatho wemveliso ikumgangatho wayo. Iimveliso ezahlukeneyo zinemigangatho eyahlukeneyo yomgangatho, kwaye umgangatho wentambo ye-platinum-rhodium thermocouple unokugwetywa ngokweempawu ezine ezilandelayo. Okokuqala, intambo ye-platinum-rhodium inozinzo lobushushu obuphezulu kwaye inokumelana nobushushu obuphezulu kakhulu ngaphandle kokuwohloka. Olu zinzo luqinisekisa ukulinganiswa kobushushu obuchanekileyo kuluhlu olubanzi lobushushu. Okwesibini, ii-thermocouples ze-platinum-rhodium zibonelela ngokulinganisa ubushushu obuchanekileyo, okwenza ukuba zilungele ukusetyenziswa okufunayo ukuchaneka okungqongqo. Ukongeza, i-platinum kunye ne-rhodium nazo zinokuxhathisa okuphezulu kokugqwala, okuqinisekisa ubomi benkonzo kunye nokuthembeka kwentambo ye-thermocouple kwiindawo ezinzima. Ukuqina kwentambo ye-platinum-rhodium thermocouple kuyenza ifaneleke ukusetyenziswa ixesha elide kwizicelo zoshishino, kunciphisa isidingo sokutshintshwa rhoqo. Ukuba iimfuno zokuchaneka kokulinganisa, ukuzinza, ukumelana ne-oxidation, njl. ziphezulu kakhulu, intambo ye-platinum-rhodium thermocouple yeyona khetho ilungileyo.
Yintoni esetyenziswa yi-platinum thermocouple wire?
Ucingo lwe-thermocouple yeplatinumIyinxalenye ebalulekileyo ekwakhiweni kwee-thermocouples zeplatinum-rhodium. Iimpawu zayo ezikhethekileyo zenza i-platinum-rhodium thermocouple wire ifaneleke kwiintlobo ngeentlobo zezicelo zobushushu obuphezulu. Kwishishini leenqwelo-moya, i-platinum thermocouple wire isetyenziselwa ukulinganisa ubushushu beenjini zejethi kunye nezinye izinto zobushushu obuphezulu. Ukulinganisa ubushushu ngokuchanekileyo kubalulekile kukhuseleko kunye nokusebenza kwezixhobo zeenqwelo-moya. I-platinum thermocouple wire isetyenziswa kwii-oven zoshishino ukujonga nokulawula ubushushu obuphezulu. Uzinzo kunye nokuchaneka kwazo kuqinisekisa ukuba i-oven isebenza ngaphakathi komgangatho wobushushu ofunekayo, ngaloo ndlela kuphucula ukusebenza kakuhle kunye nomgangatho wemveliso. Ukongeza, inkqubo yokwenziwa kweglasi ifuna ulawulo oluchanekileyo lobushushu, kwaye i-platinum thermocouple wire isetyenziselwa ukujonga ubushushu bee-oven zeglasi ukuqinisekisa ukuveliswa kweglasi okuhlala kuhleli nomgangatho ophezulu. Kuphando lwesayensi, ukulinganisa ubushushu ngokuchanekileyo kubalulekile kwiimvavanyo kunye nokuqokelelwa kwedatha. I-platinum thermocouple wire isetyenziselwa ukulinganisa ubushushu kwiimvavanyo ezahlukeneyo kwilabhoratri, inika idatha ethembekileyo nechanekileyo.
Iithermocouples zePlatinum-rhodium (kuquka iintlobo B, R, kunye no-S) zizixhobo ezibalulekileyo zokulinganisa ngokuchanekileyo ubushushu kwiindawo ezisetyenziswa kubushushu obuphezulu. Xa ukhetha ucingo lwethermocouple olungcono, iithermocouples zeplatinum-rhodium zihlala zikhethwa kuqala kuba zisebenza kakuhle kwiindawo ezinobungozi. Iithermocouples zePlatinum-rhodium zidlala indima ebalulekileyo kumashishini ahlukeneyo, zibonelela ngokuchaneka kunye nokuzinza okufunekayo kwiindawo ezisetyenziswa kubushushu obuphezulu.
Ixesha leposi: Septemba-20-2024
