1,Matakan mahimmanci don zaɓi
1. Ƙayyade hanyar dumama
-Liquid lokaci dumama: Ya dace da rufaffiyar tsarin tare da yanayin zafi ≤ 300 ℃, da hankali ya kamata a biya ga sakamakon danko a kan fluidity.
-Gas zamani dumama: dace da rufaffiyar tsarin a 280-385 ℃, tare da babban zafi canja wurin yadda ya dace amma bukatar mafi girma thermal kwanciyar hankali.
2. Saita kewayon zafin jiki
-Mafi yawan zafin jiki na aiki: Ya kamata ya zama 10-20 ℃ ƙasa da ƙimar ƙimar mai canja wurin zafi (kamar ƙimar ƙimar 320 ℃, ainihin amfani ≤ 300 ℃) don guje wa coking ko oxidation.
-Mafi ƙarancin zafin aiki: Ya kamata a tabbatar da danko ya zama ≤ 10mm ²/s (idan ana buƙatar neman zafi a cikin hunturu don hana ƙarfi).
3. Nau'in tsarin daidaitawa
-Tsarin rufewa: Babban aminci, dacewa da ci gaba da aiki, shawarar mai canja wurin zafi na roba (kamar cakuda diphenyl ether).
-Bude tsarin: Wajibi ne don zaɓar mai ma'adinai tare da kaddarorin antioxidant masu ƙarfi (kamar L-QB300) da rage sake zagayowar maye.
2,Zaɓin nau'in mai canja wurin zafi
Nau'in ma'adinai yana da ƙarancin farashi da matsakaicin kwanciyar hankali na thermal, iyakance ga lokacin amfani da ruwa ≤ 300 ℃ LQB300 LQC320
Nau'in roba yana da kwanciyar hankali mai ƙarfi (har zuwa 400 ℃) kuma ya dace da lokacin gas da yanayin yanayin zafi mai girma. Hakanan ya dace da 240 ℃ da 400 ℃ biphenyl ether gaurayawan da nau'ikan alkyl biphenyl.
3,Maɓalli na ayyuka masu mahimmanci
1. Thermal kwanciyar hankali: Acid darajar ≤ 0.5mgKOH / g da sauran carbon ≤ 1.0% ne aminci ƙofofin, da kuma maye gurbin da ake bukata idan ya wuce misali.
2. Tsaro na Oxidation: Wurin filasha na buɗewa shine ≥ 200 ℃, kuma farkon tafasar batu shine mafi girma fiye da matsakaicin zafin aiki.
3. Abokan hulɗar muhalli: Ya kamata a ba da fifiko ga mai da ba mai guba ba kuma mai iya canza yanayin zafi (kamar nau'in diphenyl ether).
4,Kariyar zaɓi
1. Guji rashin fahimta:
-Ba za a iya amfani da man fetur na ma'adinai a cikin tsarin gas-phase ba, in ba haka ba yana da haɗari ga oxidation da leakage.
-Tsarorin da aka rufe sun haramta amfani da ƙarancin tafasasshen wuri da mai mara ƙarfi.
2. Alama da Takaddun shaida:
-Zaɓi samfuran bokan bisa ga ma'aunin GB23971-2009 kuma duba rahotannin gwaji na ɓangare na uku.
-Ba da fifikon samfuran samfuran da ke ba da sabis na siyarwa bayan-tallace, kamar Great Wall Thermal Oil da Tongfu Chemical.
5,Shawarwari na kulawa
-Gwaji na yau da kullun: Ana gwada ƙimar acid da ragowar carbon kowane wata shida, kuma ana ƙididdige canje-canje na danko kowace shekara.
-System sealing: Rufe tsarin yana buƙatar kariyar nitrogen, yayin da tsarin buɗewa yana buƙatar guntun hawan tsaftacewa.
Idan kuna son ƙarin sani game da samfuranmu, don Allahtuntube mu!
Lokacin aikawa: Afrilu-10-2025
