In Roots blower, lubricating oil has the functions of lubrication, reducing friction, cooling, protection and washing. After a period of use, the lubricating oil will be polluted, aged and the leakage will be reduced. Therefore, in general, various fan equipment will set the corresponding replacement cycle according to the actual use.

當(dāng)然實(shí)際應(yīng)用中，羅茨風(fēng)機(jī)是否需要更換潤(rùn)滑油不一定是一個(gè)固定的周期，根據(jù)油品性能的變化情況，其周期可能變短也可能變長(zhǎng)，過(guò)早換會(huì)增加使用成本，過(guò)晚?yè)Q會(huì)影響羅茨風(fēng)機(jī)的性能，具體的要看潤(rùn)滑油實(shí)際的品質(zhì)情況，關(guān)于它的判斷可以通過(guò)幾個(gè)方面來(lái)進(jìn)行判斷：

Of course, in practical application, whether the roots blower needs to replace the lubricating oil is not necessarily a fixed cycle. According to the change of oil performance, its cycle may become shorter or longer. Early replacement will increase the use cost, and too late replacement will affect the performance of Roots blower. The specific depends on the actual quality of lubricating oil. Its judgment can be judged from several aspects:

一看是否氧化變質(zhì)。這點(diǎn)一方面可以通過(guò)外觀進(jìn)行分辨，看油的顏色是否變黑或加深，以及表面有無(wú)形成較硬的膠膜。另一方面，也可以取少量油箱底部的油泥置于食指和拇指之間進(jìn)行捻壓摩擦，如果感覺(jué)到膠質(zhì)多、粘附性強(qiáng)，則說(shuō)明潤(rùn)滑油己經(jīng)嚴(yán)重變質(zhì)，需要更換。

See if it is oxidized and deteriorated. On the one hand, this can be distinguished by appearance to see whether the color of the oil turns black or deepened, and whether a hard adhesive film is formed on the surface. On the other hand, you can also take a small amount of oil sludge at the bottom of the oil tank and place it between your index finger and thumb for twisting and friction. If you feel that there are many colloids and strong adhesion, it indicates that the lubricating oil has seriously deteriorated and needs to be replaced.

二是檢查潤(rùn)滑油是否混入了較多硬粒雜質(zhì)。這點(diǎn)與上面的檢驗(yàn)方式一樣，通過(guò)取少量潤(rùn)滑油用手指進(jìn)行捻壓，憑借感覺(jué)即可進(jìn)行判斷。

Second, check whether the lubricating oil is mixed with more hard particle impurities. This is the same as the above inspection method. It can be judged by feeling by taking a small amount of lubricating oil and twisting it with your fingers.

如果確定要進(jìn)行潤(rùn)滑油更換時(shí)，需要注意避免新舊潤(rùn)滑油混合，清理干凈舊油后再充入新油，另外在填充過(guò)程中，要注意油量。

If it is determined to replace the lubricating oil, pay attention to avoid mixing the old and new lubricating oil. Clean up the old oil and then fill it with new oil. In addition, pay attention to the amount of oil during filling.

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