What are the criteria for selecting a water-lubricated oil-free air compressor?

Oil-free air compressor has two compression modes, water lubricated oil-free air compressor and dry oil-free air compressor. We need pure oil-free compressed air. Most of them purchase equipment in these two schemes. Water-lubricated air compressors are mature enough. Shanghai Granklin Group mainly produces water-lubricated air compressors.

1, to consider the safety of oil-free air compressor operation.

Oil-free air compressor is a kind of machine with pressure operation, which is accompanied by temperature rise and pressure, and the safety of its operation should be put in the first place. The state implements the standardized "two certificates" criterion for the production of compressors, that is, the compressor production license and the pressure vessel production license (gas tank). Therefore, when purchasing compressor products, it is necessary to strictly check the "two certificates". Usually, the product quality assurance system of the certified manufacturer is perfect and will not present major quality problems. Even if there are some problems, the manufacturer will be responsible for the three guarantees.

2, to consider the compressed air quality.

Generally, the compressed air produced by the air compressor contains a certain amount of lubricating oil and a certain amount of water. In some cases, it is forbidden to oil and water. At this time, it is not only necessary to pay attention to the selection of the compressor, but also to increase the auxiliary equipment when necessary.

Solution: First, choose water-lubricated air compressor. This compressor host basically does not contain oil, and its air compressor host uses water as a lubricating substance to replace the lubricating oil of the traditional air compressor.

The gas compressed by the main engine of the water lubricated air compressor and the back-end cold dryer can remove water, so that the air compressed by the compressor contains neither oil nor water, and the oil content in the compressed air is below 5ppm, which can meet the process requirements.

3. The displacement is one of the main parameters of the water-lubricated oil-free air compressor. The gas volume of the air compressor should be matched with the required displacement, and a margin of 10%-20% should be left. If the air volume is large and the air compressor exhaust volume is small, the pneumatic tool is started, the exhaust pressure of the air compressor will be greatly reduced, and the pneumatic tool cannot be driven. Of course, it is also wrong to blindly pursue large exhaust volume. As the larger the exhaust volume, the larger the motor equipped with the compressor, not only the price is high, but also the purchase funds are wasted. In daily production and use, electricity will be wasted and energy consumption will be increased.