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反應釜總體結構中的主要部件及其用途

來(lái)源: 時(shí)間:2012-11-22 14:21:03 瀏覽次數:

1、釜體部分 釜體是物料進(jìn)行化學(xué)反應的空間,由筒體和上下封頭組成,通常是密閉的,有時(shí)也采用敞開(kāi)式,主要視反應介質(zhì)而定。2、傳熱裝置 在釜體的內部或外部設置供加熱或冷卻用的傳熱裝置,通常為釜體外部夾套或釜內蛇管。

反應釜的總體結構通常由以下幾部分組成:

    1、釜體部分

    釜體是物料進(jìn)行化學(xué)反應的空間,由筒體和上下封頭組成,通常是密閉的,有時(shí)也采用敞開(kāi)式,主要視反應介質(zhì)而定。

    2、傳熱裝置

    在釜體的內部或外部設置供加熱或冷卻用的傳熱裝置,通常為釜體外部夾套或釜內蛇管。

    3、攪拌裝置

    為使物料混合均勻,接觸良好,需在釜內設置攪拌裝置。攪拌裝置由攪拌軸和攪拌器組成。其轉動(dòng)由電動(dòng)機經(jīng)減速器減到適宜轉速后,再經(jīng)聯(lián)軸器來(lái)帶動(dòng)。立式攪拌軸是懸臂的。需要時(shí)也可在釜內設置中間軸承或底軸承。

    4、軸封裝置

    由于攪拌軸是動(dòng)的,而釜體封頭是靜的,所以在攪拌軸伸出之處必需進(jìn)行密封(軸封),軸封的作用是保持設備內的壓力(或真空度),防止反應物料逸出和雜質(zhì)滲入。軸封通常采用填料密封或機械密封。

    5、其它結構

    主要包括人孔、手孔、各種接管、溫度計、壓力表、視鏡、安全泄放裝置等。

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