PR1231/PR1232 Thermocouple Yabwino Kwambiri ya Platinum-10% Rhodium/Platium
PR1231/PR1232 Thermocouple Yabwino Kwambiri ya Platinum-10% Rhodium/Platium
Chidule cha Gawo 1
Ma thermocouple a platinum-iridium 10-platinum omwe ndi olondola kwambiri, ali ndi mphamvu zabwino zakuthupi ndi zamakemikolo, amakana kutentha kwambiri, amakhala okhazikika komanso amatha kubereka mphamvu ya thermoelectromotive. Chifukwa chake, amagwiritsidwa ntchito ngati chida choyezera mu (419.527~1084.62) °C, amagwiritsidwanso ntchito poyesa kutentha kwakukulu komanso molondola pamlingo wa kutentha.
| Chizindikiro cha magawo | Ma thermocouple a platinamu-iridium 10-platinamu a kalasi yoyamba | Ma thermocouple a platinamu-iridium 10-platinamu a giredi yachiwiri |
| Zabwino ndi zoyipa | Zabwino ndi platinamu-rhodium alloy (platinamu 90% rhodium 10%), zoipa ndi platinamu yeniyeni. | |
| elekitirodi | Ma electrode awiri m'mimba mwake ndi 0.5-0.015kutalika kwa mm sikochepera 1000mm | |
| Zofunikira pa mphamvu yamagetsi yotenthetsera Muyeso kutentha kwa junction ndi pa Cu point(1084.62℃）Al point(660.323℃)Zn point(419.527℃) ndipo kutentha kwa junction ndi 0℃ | E(t)Cu)=10.575±0.015mVE(t)Al)=5.860+0.37 [E(tCu)－10.575]±0.005mVE(tZn)=3.447+0.18 [E(tCu)－10.575]±0.005mV | |
| Kukhazikika kwa mphamvu ya Thermo-electromotive | 3μV | 5μV |
| Kusintha kwa pachaka kwa mphamvu ya Thermo-electromotive pa Cu point (1084.62℃） | ≦5μV | ≦10μV |
| Kugwira Ntchito Kutentha Kwapakati | 300~1100℃ | |
| Chikwama choteteza | Chubu cha porcelain chokhala ndi mabowo awiri kapena chubu cha corundum. Chimake chakunja (3 ~ 4)mm, m'mimba mwake wa bowo (0.8 ~ 1.0)mm, kutalika (500 ~ 550)mm | |
Gawo 3Malangizo Ogwiritsira Ntchito
Ma thermocouple a platinum-iridium 10-platinum ayenera kukhala motsatira tebulo la dziko lonse loperekera, njira zotsimikizira dziko lonse ziyenera kukhazikitsidwa. Ma thermocouple a platinum-iridium 10-platinum a giredi yoyamba angagwiritsidwe ntchito poyesa ma thermocouple a giredi yachiwiri, giredi ya ...
| Khodi yotsimikizira dziko lonse | Dzina lotsimikizira dziko |
| JJG75-1995 | Kufotokozera kwa platinum-iridium 10-platinum thermocouples calibration standard |
| JJG141-2013 | Kufotokozera kwa thermocouples yachitsulo chamtengo wapatali yogwira ntchito |
| JJF1637-2017 | mfundo zoyendetsera thermocouple yachitsulo choyambira |
1. Nthawi yoyezera thermocouple ndi chaka chimodzi, ndipo chaka chilichonse thermocouple iyenera kuyezedwa ndi dipatimenti ya metrology.
2. Kuyang'anira kofunikira kuyenera kuchitika malinga ndi momwe zinthu zilili.
3. Malo ogwirira ntchito a thermocouple yokhazikika ayenera kukhala oyera kuti asaipitse thermocouple yokhazikika.
4. Thermocouple yokhazikika iyenera kuyikidwa pamalo osadetsa komanso kutetezedwa ku mphamvu ya makina.
Gawo 5 Zoyenera Kutsatira Mukagwiritsa Ntchito
1. Chubu chotetezera kutentha sichingagwiritsidwe ntchito powotcha kutentha kwambiri. Chubu chotetezera kutentha choyambirira chimagwiritsidwa ntchito pambuyo poyeretsa bwino komanso kuwotcha kutentha kwambiri.
2. Chubu chotenthetsera chimanyalanyaza zabwino ndi zoyipa, zomwe zimapangitsa kuti platinamu iipitsidwe komanso kuti mphamvu ya thermoelectric ichepe.
3. Mwachisawawa chubu chodzitetezera cha thermocouple chokhazikika chokhala ndi waya wotsika mtengo chidzadetsa thermocouple yokhazikika, ndipo chubu choteteza chachitsulo chiyenera kugwiritsidwa ntchito potsimikizira thermocouple yachitsulo choyambira.
4. Thermocouple yokhazikika siyingayikidwe mwadzidzidzi mu ng'anjo yolamulira kutentha, kapena kuchotsedwa mu ng'anjo yolamulira kutentha. Kutentha ndi kuzizira mwadzidzidzi kudzakhudza momwe thermoelectric imagwirira ntchito.
5. Nthawi zonse, ng'anjo yotsimikizira ya thermocouple yachitsulo chamtengo wapatali ndi thermocouple yachitsulo choyambira iyenera kudziwika bwino; ngati sizingatheke, chubu choyera cha ceramic kapena chubu cha corundum (chokhala ndi mainchesi pafupifupi 15mm) chiyenera kuyikidwa mu chubu cha ng'anjo kuti chiteteze Thermocouple yachitsulo chamtengo wapatali ndi thermocouple yokhazikika ku kuipitsidwa kwa thermocouple yachitsulo choyambira.
