空壓機轉子是高速轉動的，而端面是(shì)靜止，它們之間存在有一定的間隙，而(ér)壓縮機功率(lǜ)越大所調的間隙也(yě)會增大。壓縮機轉子在裝配時(shí)很重要的一步就是調節其間(jiān)隙，調大的話影響壓縮機(jī)排氣量(liàng)，小的話容(róng)易(yì)摩擦發生高溫現象。螺杆壓縮機的排端間隙(xì)是是(shì)設計者在設計的時候确定了的。一般間隙是根據機器的大小、運行工況、轉子及其缸體的材料等因素定的。間隙隻(zhī)要在一定的範圍内，不會(huì)影響機器的正常運行。

The air compressor rotor rotates at high speed, while the end face is stationary. There is a certain gap between them, and the clearance adjusted by the higher the compressor power is, the larger the clearance will be. When the compressor rotor is assembled, it is very important to adjust its clearance. If it is increased, it will affect the compressor exhaust volume. If it is small, it will easily cause high temperature friction. The end clearance of screw compressor is determined by the designer at the time of design. General clearance is determined by the size of the machine, operating conditions, materials of the rotor and its cylinder. As long as the clearance is within a certain range, it will not affect the normal operation of the machine.


如果空壓機機頭使用(yòng)多年後需要(yào)大修，維修時(shí)最好是能從制(zhì)造廠商那了解該機頭的(de)間隙範圍，而且最好是能在拆(chāi)機器的時候測式(shì)該(gāi)機器準确的間隙(xì)值，安裝的時候盡量保證這(zhè)個間隙值。當然，各(gè)個廠家的結構不一樣(yàng),間隙調(diào)整也有區别,要(yào)具體問題具(jù)體分(fèn)析。如果所說的機頭(tóu)故障(zhàng)屬于工況環境導緻，可以通過惡劣工況下用空氣過濾器(qì)，改善運行環境，從(cóng)源頭呵護主機，降低(dī)運行成本。

If the air compressor head needs to be overhauled after many years of use, it is better to know the clearance range of the head from the manufacturer when repairing, and it is better to measure the accurate clearance value of the machine when disassembling the machine, and try to ensure the clearance value when installing. Of course, the structure of each manufacturer is different, gap adjustment is also different, specific issues need to be analyzed. If the said nose failure is caused by working conditions, the operating environment can be improved by using air filters under bad working conditions, and the main engine can be cared for from the source to reduce operating costs.



螺杆空壓機主機的(de)進、排氣端面(miàn)間隙，主要是(shì)考慮密封腔(qiāng)中的各個熱(rè)膨脹所引起的情況，因(yīn)此留有不同間隙(xì)。此外，又因排氣端的受力大于進氣端，所以在排氣端用了止(zhǐ)推軸承。排氣端間隙過大，影響壓縮效率；過小，熱膨脹間隙也(yě)要必須保證。這時，也要考慮到軸承的遊隙。在維修主機時，可以适當放寬一點，主要是保證(zhèng)正常(cháng)運轉。轉子與(yǔ)機殼之(zhī)間的間隙，大體上同上。螺(luó)杆主機是精密(mì)部件(jiàn)，要充分掌握相關維修技術，才能(néng)進(jìn)行很好地維護。最後(hòu)，将維修好的主機進行相(xiàng)關的檢查，再(zài)按部就班地進行總裝試車後投入運行。

The inlet and exhaust end clearance of the main engine of screw air compressor is mainly caused by the thermal expansion in the sealing chamber, so there are different clearances. In addition, the thrust bearing is used at the exhaust end because the force at the exhaust end is greater than that at the intake end. Excessive clearance at the exhaust end affects the compression efficiency; too small, the thermal expansion clearance must also be guaranteed. At this time, bearing clearance should also be taken into account. In the maintenance of the main engine, we can relax a little, mainly to ensure normal operation. The clearance between the rotor and the casing is roughly the same. The main screw machine is a precise part. Only by fully mastering the relevant maintenance technology, can it be well maintained. Finally, the repaired main engine is inspected and put into operation after commissioning.