空(kōng)壓機轉子是高速轉動的(de)，而端面是(shì)靜止，它們之間存在有一(yī)定的間隙(xì)，而壓縮機功率越大所調的間隙也(yě)會增大。壓(yā)縮機轉子在(zài)裝配時很重要的一步就是調節其間隙，調(diào)大的話影響壓縮機排氣(qì)量(liàng)，小的話容易摩擦發(fā)生高溫現(xiàn)象。螺杆壓縮機的排端間隙(xì)是是設計(jì)者在設計的時(shí)候确定了的。一般間隙是根據機器的大小、運行工況、轉(zhuǎn)子及其缸體的材料等因素定(dìng)的。間隙隻要在一定的範圍内，不會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(jī)機頭使用(yòng)多年後需(xū)要大修，維修時最好是能從制造廠商那了解該機頭的間隙範圍，而且最好是能在拆機器的時候測式該(gāi)機器(qì)準确的間隙值，安裝(zhuāng)的時候盡量保證這(zhè)個間(jiān)隙值。當然，各個廠家(jiā)的結構不一樣,間隙調整也有區别(bié),要具體問題具體(tǐ)分(fèn)析。如(rú)果所說的機頭故障(zhàng)屬于工況(kuàng)環境導緻，可以通過惡劣工況下用空氣過濾器，改善運行環(huán)境，從源(yuán)頭呵護主機，降低(dī)運行(háng)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(kōng)壓機主機的進、排氣端面間隙，主要是考慮密封腔中的各個熱膨脹所(suǒ)引起的情況，因此(cǐ)留有不同間隙。此(cǐ)外，又因排氣端的受力大于進氣端，所(suǒ)以在排氣端用了止(zhǐ)推軸承。排(pái)氣端間隙過大，影響(xiǎng)壓縮效率；過小，熱膨脹間隙也要必(bì)須保證。這(zhè)時，也要考慮到軸承的遊(yóu)隙。在維修(xiū)主機時，可以适當放寬(kuān)一點，主要(yào)是保證正(zhèng)常運轉。轉子與機殼之間的間隙，大體上同上。螺杆主機是精密部件(jiàn)，要(yào)充分掌握相關維(wéi)修技術，才能進行(háng)很(hěn)好地維護。最(zuì)後，将維修好的主機進行相關的檢查(chá)，再按部就班地進行總裝試車後投入運(yùn)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.