Oil and gas separation element (hereinafter referred to as oil) is an important part of oil-lubricated rotary air compressor and vacuum pump. Its main function is to separate the oil and compressed air in the oil and gas mixture, so that the oil can return to the oil circulation system, thereby reducing the oil content in the air.Oil separation application is more in the oil injection screw type air compressor, this paper discusses the application of this aspect.
Generally used for oil injection screw type air compressor oil content requirements are after oil treatment of the outlet compressed air residual oil volume is not more than 3ppm (oil content not more than 3mg/m3).Air compressor outlet air oil content exceeds standard usually called fuel consumption, commonly known as running oil, has long been troubling manufacturers, sellers and users of the headache problem, is one of the most common fault phenomenon.In addition to contaminating post-treatment equipment (such as dryer and precision filter element), if the air compressor runs out of oil, it will also affect the quality of products produced by users, and even cause some production equipment to be damaged to varying degrees.
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So how to determine whether the machine has a high fuel consumption?I think we should start from the following aspects:
1, first rule out the machine pipe fitting appearance no oil leakage or oil leakage phenomenon.
2. If the oil level of the machine decreases significantly, observe the oil level indicator line to compare under the same working environment. For example, under the same load of 7bar, observe whether the oil level changes before and after the time or whether the oil level is different after the shutdown for 10 minutes.
3. For the machine equipped with water separator, take samples from the drain port of the water separator, drain the water and put it in a clean container (cup or mineral water bottle) and then precipitate for about five minutes, and then observe whether there is spot or oil film oil gathering on the surface of the container.It is normal that when viewed against the light, there are only a few thin colorful oil flowers. Before settling, the sampled water may appear milky white, which is normal.For machines without water separator, observe the drain condition of the air storage tank, and whether the discharged water takes out more oil than the previous normal condition.
Through the above several aspects, we can basically determine whether the machine has the problem of excessive fuel consumption.