螺桿壓縮機的工作原理
沈陽螺桿壓縮機的工作原理
1、吸氣過程:
螺桿(gan)式(shi)(shi)(shi)的進(jin)(jin)氣(qi)(qi)(qi)(qi)側吸(xi)(xi)氣(qi)(qi)(qi)(qi)口,必需設計得使壓(ya)縮室可以充分吸(xi)(xi)氣(qi)(qi)(qi)(qi),而螺桿(gan)式(shi)(shi)(shi)空(kong)(kong)壓(ya)機并無進(jin)(jin)氣(qi)(qi)(qi)(qi)與(yu)排(pai)(pai)氣(qi)(qi)(qi)(qi)閥組,進(jin)(jin)氣(qi)(qi)(qi)(qi)只(zhi)靠一(yi)調節(jie)閥的開(kai)啟、關閉調節(jie),當(dang)轉(zhuan)子(zi)轉(zhuan)動時(shi),主副轉(zhuan)子(zi)的齒(chi)(chi)溝空(kong)(kong)間在(zai)轉(zhuan)至進(jin)(jin)氣(qi)(qi)(qi)(qi)端壁開(kai)口時(shi),其空(kong)(kong)間較大,此時(shi)轉(zhuan)子(zi)的齒(chi)(chi)溝空(kong)(kong)間與(yu)進(jin)(jin)氣(qi)(qi)(qi)(qi)口之(zhi)自由空(kong)(kong)氣(qi)(qi)(qi)(qi)相通,因(yin)在(zai)排(pai)(pai)氣(qi)(qi)(qi)(qi)時(shi)齒(chi)(chi)溝之(zhi)空(kong)(kong)氣(qi)(qi)(qi)(qi)被(bei)全數排(pai)(pai)出,排(pai)(pai)氣(qi)(qi)(qi)(qi)結束時(shi),齒(chi)(chi)溝乃處于真(zhen)空(kong)(kong)狀態,當(dang)轉(zhuan)到進(jin)(jin)氣(qi)(qi)(qi)(qi)口時(shi),外界空(kong)(kong)氣(qi)(qi)(qi)(qi)即(ji)被(bei)吸(xi)(xi)入(ru),沿軸向流入(ru)主副轉(zhuan)子(zi)的齒(chi)(chi)溝內。螺桿(gan)式(shi)(shi)(shi)空(kong)(kong)壓(ya)機維修提醒當(dang)空(kong)(kong)氣(qi)(qi)(qi)(qi)充滿整個齒(chi)(chi)溝時(shi),轉(zhuan)子(zi)之(zhi)進(jin)(jin)氣(qi)(qi)(qi)(qi)側端面(mian)轉(zhuan)離了機殼之(zhi)進(jin)(jin)氣(qi)(qi)(qi)(qi)口,在(zai)齒(chi)(chi)溝間的空(kong)(kong)氣(qi)(qi)(qi)(qi)即(ji)被(bei)封閉。
2、封閉及輸送過程:
主副兩轉子(zi)在(zai)吸(xi)氣結束時,其主副轉子(zi)齒(chi)峰(feng)會與機殼閉封,此時空氣在(zai)齒(chi)溝(gou)內(nei)閉封不再外流,即(ji)[封閉過程]。兩轉子(zi)繼續(xu)轉動,其齒(chi)峰(feng)與齒(chi)溝(gou)在(zai)吸(xi)氣端吻合,吻合面逐漸向排氣端移動。
3、壓縮及噴(pen)油過程:
在(zai)輸送過(guo)(guo)程中,嚙(nie)合面逐漸(jian)向排(pai)氣端(duan)移動,亦即嚙(nie)合面與排(pai)氣口(kou)間(jian)的齒溝(gou)間(jian)漸(jian)漸(jian)減小,齒溝(gou)內之(zhi)氣體逐漸(jian)被(bei)壓(ya)(ya)縮(suo),壓(ya)(ya)力(li)提高,此即[壓(ya)(ya)縮(suo)過(guo)(guo)程]。而壓(ya)(ya)縮(suo)同時潤滑(hua)油亦因(yin)壓(ya)(ya)力(li)差的作(zuo)用(yong)而噴入壓(ya)(ya)縮(suo)室內與室氣混合。
4、排氣過程:
當螺桿空壓機維修中轉子(zi)的嚙(nie)合(he)端(duan)面(mian)(mian)(mian)轉到(dao)與(yu)機(ji)殼排(pai)(pai)氣相通時,(此時壓(ya)縮氣體之壓(ya)力較高)被(bei)壓(ya)縮之氣體開始排(pai)(pai)出(chu),直至(zhi)齒峰(feng)與(yu)齒溝(gou)的嚙(nie)合(he)面(mian)(mian)(mian)移至(zhi)排(pai)(pai)氣端(duan)面(mian)(mian)(mian),此時兩轉子(zi)嚙(nie)合(he)面(mian)(mian)(mian)與(yu)機(ji)殼排(pai)(pai)氣口(kou)這(zhe)齒溝(gou)空間為(wei)零,即完(wan)成(排(pai)(pai)氣過程(cheng)),在此同時轉子(zi)嚙(nie)合(he)面(mian)(mian)(mian)與(yu)機(ji)殼進氣口(kou)之間的齒溝(gou)長度又(you)達到(dao)較長,其吸氣過程(cheng)又(you)在進行。
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