Analysis On The Cause Of Oil-gas Separator Running Phenomenon

原因分析和相应的解决方案of oil occurrence running oil phenomenon:

Oil occurrence running phenomenon is related to many factors, in the actual process, we found that most of the fault complaint is not the quality of oil, and generally related to the following aspects:

1. Minimum pressure valve failure

如果最小压力阀门密封件有泄漏点或最小压力阀门提前打开（因为每个制造商的设计开放压力变化，）通常介于3.5〜5.5kg / cm2之间的范围，然后机器在开始运行的开始时油气罐压力时间将增加，此时在瓦斯油雾浓度的低压状态下，通过油时分流量，油负荷增加，分离效果降低，导致燃料量大。

Solution: Overhaul the minimum pressure valve, replacement if necessary.

2，使用不合格的油

Now the general screw air compressor all have high temperature protection, its usually jumping machine temperature is about 110 ℃, while some machines in the use of substandard oil, at high exhaust temperatures will appear to varying degrees of fuel consumption phenomenon (based on this, the higher the temperature, the greater the fuel consumption, the reason is that after the high temperature oil and gas barrel after the primary separation of some oil droplets can be with the gas phase molecules have the same order of magnitude, molecular diameter ≤ 0.01 μm, oil is difficult to capture the separation, resulting in excessive fuel consumption.

Solution: Find the cause of high temperature, solve the problem to reduce the temperature, as much as possible to choose good quality oil.

3, oil and gas separation tank design not standard

一些空气压缩机制造商，在设计油气分离罐，初级分离系统设计是不合理的，初级分离效果不理想，使油雾浓度高含量，油负荷过高，加工能力不足，加工能力不足，导致燃料消耗过高。

解决方案：制造商提高了设计，提高了初级分离效果。

4, refueling too much

Refueling quantity exceeds the normal oil level, some oil with the airflow away, resulting in excessive fuel consumption.

Solution: After the shutdown, to the gas tank in the air pressure leakage to zero, open the discharge valve, the oil discharged to the normal oil level.

5，回水止回阀损坏

If the return to the oil one-way valve damage (from one-way to two-way), after the shutdown of the oil tank pressure will be a large number of oil through the back to the oil pipe back to the internal separation, the next machine run, oil in the internal oil will not be able to promptly suction back to the nose, resulting in part of the oil with the separated air run into the air compressor (this situation is common in the device of the valve and the nose exhaust outlet one-way valve machine).

Solution: After demolition check one-way valve, if there is debris to its card, cleaning up debris can, such as one-way valve damaged, the replacement of new products.

6. Improper installation of Back tubing

在更换，清洁，维护空气压缩机中，背管未插入油的底部（参考：从油的底部1〜2mm更好），导致油的分离不能返回鼻子，油的积累将用压缩空气耗尽。

Solution: Downtime, after the pressure to return to zero, the back of the tubing to reasonable height (back to the bottom of the oil from the 1~2mm branch, the oblique mouth of the back tubing can be inserted into the bottom of the oil).

7，使用气体，过载和低压

Overload low pressure use refers to the user using screw air compressor, the exhaust pressures did not reach the screw air compressor itself rated working pressure, but the basic ability to meet some of the user's gas requirements, such as: Enterprise users increased gas equipment, with the increase of gas volume, screw air compressor exhaust gas and user gas can not achieve balance, assuming the air compressor rated exhaust pressure 8kg/cm2, but the actual use of pressure only 5kg/cm2 even lower, such screw compressor in a long-term load running state, Unable to reach the rated pressure value of the machine, resulting in increased fuel consumption, the reason is that the exhaust volume is unchanged, the oil and gas mixture through the flow rate accelerated, excessive oil mist concentration, resulting in heavier oil load, and ultimately lead to large fuel consumption.