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Oil-free piston air compressor
The oil-free piston air compressor is lubricated with resin material, and the discharged gas does not contain oil. It is understood that the oil-lubricated oil-free machine is generally used in the domestic market. In recent years, a new oil-free piston air compressor has been developed. The improved oil-free air compressor, the improved equipment uses a heat-resistant piston, so that the bearing grease is no longer lost by high-temperature conduction and radiation.
The advantage of this type of oil-free air compressor is that it is cheaper. However, the noise is large, the maintenance is frequent, the cost is high, and the air loss is large. At present, it is mainly used in small and small start-up enterprises, private small dental clinics, scientific research units, etc.
Vortex oilless machine
The working principle of the scroll type oilless machine is that the movable scroll rotates around the center of the fixed scroll with a small radius, and the formed working chamber is enlarged or contracted accordingly, thereby realizing the process of gas suction, compression and exhaust.
The advantage of this kind of equipment is that it has good mute effect, low price and brand effect, but because it is a small exhaust type, it consumes a lot of energy and has a short life. Currently, it has a market in hospitals, dental clinics, research institutes, printing and painting industries.
Centrifugal oilless machine
The centrifugal oil-free machine raises the pressure and velocity of the gas by working on the gas through a single impeller running at a high speed to complete the transportation of the gas, and the gas flows through the compressor of The Impeller in the radial direction.
At present, centrifugal oil-free machines have a certain market in bio-fermentation with large gas consumption, air separation industry, chemical industry, petroleum, natural gas and refrigeration industries.
Dry oilless machine
The working principle of the dry oilless machine is to increase the pressure and speed of the gas by working on the gas through the double impeller at high speed to complete the transportation of the gas.
This kind of oil-free machine has a high market share, brand effect and technical stability. However, the defects are high procurement costs, high energy consumption, high maintenance costs, and the risk of oil. Currently applicable to industries such as medicine, food, chemicals, electronics, etc. that require clean compressed air pressure.
Water lubrication oil free machine
The water-lubricated oil-free machine uses pure water as a compression medium, and the sealing space formed by the star wheel piece, the compression shell and the screw groove is rotated by the screw, and the volume is reduced to form a compression of the air.
Its advantages are high cost performance, simple operation, low operating cost and simple maintenance. However, the market for water-lubricated oil-free machines is less and the brand awareness is low. It is currently used in industries such as medicine, food, chemicals, electronics, etc. that require clean compressed air pressure.
Users can choose the right oil-free air compressor according to different application requirements and the selected conditions. However, it is worth noting that when users choose a type of model, because there are more similar products on the market, users also need to polish their eyes, "shopping around three", choose a regular manufacturer, so that the quality of products and after-sales service are guaranteed. In order to prevent the device from getting help after a failure.
Comparison of advantages and disadvantages of five oil-free air compressor models commonly available in the market
In the pharmaceutical industry, general pharmaceutical companies require strict control of water and oil in compressed air. The oil in the compressed air is mainly brought by the air compressor used to produce compressed air. Under strict requirements, oil-free air compressors are becoming more and more popular. In this regard, this article will introduce you to several common oil-free air compressor models on the market, including oil-free piston air compressor, scroll oil-free machine, centrifugal oil-free machine, dry oil-free machine, water Lubricate the oil-free machine.