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電熱鼓風(fēng)干燥箱由電加熱器加熱

更新時(shí)間:2011-12-01      點(diǎn)擊次數:485

電熱鼓風(fēng)干燥箱由電加熱器加暖,通常露于氛圍中的加熱絲因高溫以及恒久加熱易氧化,影響壽命,我北京翻譯公司加熱器通常采納盤(pán)管式電加熱管,即加熱絲位于加熱管內部,可低落氧化速率增長(cháng)命命離心泵,同時(shí)熱量傳到鋼管上增大了導熱面積。
一、電鍋爐箱與真空隔膜泵之間*跨過(guò)濾器,以防備濕潤體進(jìn)入真空泵。
二、真空箱不需一連抽氣使歷時(shí),應先關(guān)閉真空減壓閥,再封閉真空泵電源,不然真空泵油要倒灌至內。
三、真空箱外殼必需有用接地,以確保利用寧靜。
四、真空無(wú)防爆裝置,不患上放入易爆物品干燥。
五、掏出被處置懲罰物品撕,如處置懲罰的是易燃物品,必需待溫度寒卻到低于燃點(diǎn)后,才氣放入空氣,以避免產(chǎn)生氧化反響引起焚燒。
干燥箱的調試:
一、將箱門(mén)關(guān)上并將拉手旋緊,關(guān)閉放氣止回閥真空泵,開(kāi)啟真空閥。
二、如設定溫度為120℃,加熱批示燈亮,開(kāi)始進(jìn)入加熱升溫狀況,當表現溫度靠近設定溫度時(shí),加熱批示燈忽亮忽熄,重復屢次,溫度節制進(jìn)入恒溫狀況,真空工作.
三、將真空側面的導氣管用真空橡膠管與真空螺桿泵毗連,接通真空氣動(dòng)隔膜泵電源,開(kāi)始抽氣,認真空表批示值達到-0.1M Pa時(shí),關(guān)閉真空氣動(dòng)隔膜泵和真空離心泵電源,此時(shí)箱內處于真空狀態(tài),如無(wú)加熱請求,真空調試竣事。
 
 

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