2026-04-10Views：
For medicine, food, semiconductor, chemical industry, fermentation and other industries, oil-free and clean compressed air must be the first choice. Oil-free oil-free screw air compressor, water-lubricated oil-free screw air compressor, oil-free scroll air compressor and oil-free centrifugal air compressor are common oil-free. Today, compare two types of oil-free screw air compressors-dry oil-free and water lubrication.
First:
the single screw water lubricated air compressor uses pure water for lubrication and cooling, and the internal parts combination of the body is made of special material medical grade stainless steel, which will never corrode.
Dry oil-free air compressor still depends on lubricating oil to cool, the body will produce oil smell.
Second:
the pure water of the water-lubricated air compressor system has been circulating in the system. The system will automatically change the water at a set time to ensure the quality of the water, and the operating temperature of the body is not higher than 50 degrees, so the water is not affected inside the body. And scale problems.
The operating temperature of the dry-type oil-free machine is very high, which exceeds 200 degrees, which directly affects the life of the cooling oil and the bearing.
Third:
the single-screw water-lubricated oil-free machine adopts imported special bearings, so there is no problem with direct water lubrication, high efficiency, low head noise, and few bearing combinations.
Twin-screw air compressors generally use FAG or SKF bearings, which are low-temperature bearings with short service life and high noise, and there are many combinations of double head bearings.
Fourth:
single screw water lubricated air compressor is directly sprayed with pure water in the body. Due to the high specific calorific value of water, the compression chamber is almost in the ideal state of isothermal compression and the compression process with the lowest energy consumption.
Dry-type oil-free cooling oil is about 100 degrees, the temperature of the compression chamber exceeds 200 degrees, and the temperature difference is relatively large, so the energy consumption is relatively high.
Fifth:
single-screw water-lubricated oil-free machine, the body and the motor are directly connected, the speed is low below 3000 rpm, there is no speed-increasing gear, the bearing life is long, and the maintenance cost is low.
The dry-type oil-free machine body needs to add a speed-increasing gear to the middle of the motor, because the speed is higher than 18000 revolutions, the speed-increasing gear needs to be increased, the bearing life is short, and the maintenance cost is high.
Sixth:
the water-lubricated air compressor uses water to cool the lubrication seal, the air quality is guaranteed, and the speed is about 3000 rpm. The temperature is about 55 degrees, and the maintenance cost is low.
The dry twin-screw air compressor uses oil to cool the bearings. The air quality cannot be completely clean and environmentally friendly. The two-stage compression speed reaches about 18000 rpm, which consumes labor and the temperature reaches about 200 degrees. It is unsafe and has high maintenance costs.
We all know that compared with ordinary air compressors, oil-free air compressors have stronger air cleaning capabilities. With the needs of industry production, many factories are now using oil-free air compressors to replace traditional air compressor equipment. Oil-free air compressor brand manufacturers on the market are also
Shanghai Granklin Group produces water-lubricated air compressors. The head of the machine is made of stainless steel to compress gas, coalbed methane, and some special gases, such as nitrogen and argon. Water-lubricated air compressors are divided into different series according to the different cooling methods and energy-saving methods: water-lubricated air-cooled air compressors, water-lubricated water-cooled air compressors, water-lubricated frequency conversion air compressors, water-lubricated permanent magnet frequency conversion air compressors
The perfect air compressor does not exist, has the ability to continuously improve the air compressor technology manufacturers, constantly improving equipment, through service to achieve relative perfection. Now the permanent magnet variable frequency air compressor is basically being done by all manufacturers. Where
In recent years, the voice of energy saving and emission reduction in China is getting higher and higher, and the demand for energy-saving equipment is also increasing. Increasing energy conservation has also become a realistic task facing the air compressor industry. Frequency conversion air compressor is an energy-saving air compressor, its advantages are as follows: advantages: set the pressure at will, and maintain a constant pressure. Oil-free air compressor is suitable for: municipal, mining, tunnel, exploration, petroleum, wharf, shipbuilding, power plant, drilling, steel plant, subway, highway, railway, airport, factory, hospital, ship, building, communication, mining, pipeline cleaning, construction machinery and other fields.
Twenty-first Century air compressor market competition is fierce, consumers in the purchase of products, often the machine quality and price included in the purchase standard. Therefore, this article will be common in the market a variety of labeling methods to make a description, in order to protect the interests of consumers to do a force.
Air compressor as the power equipment of production-oriented enterprises, buy the air compressor is not appropriate, the loss is too big, not only the money to buy the air compressor, but also the huge electricity costs, as well as high maintenance costs, more important.
When used as a process source gas, compressed air is in direct contact with materials and food. When used as a power source, although not in direct contact with food and raw materials, but most of them are used in clean areas. Therefore, compressed air for food must use clean compressed air.
It is best to use the original lubricating oil or the lubricating oil recommended and specified by the manufacturer. One is the oxidation resistance and thermal stability of compressor oil. For compressor oil, its oxidation resistance and thermal decomposition resistance can not only prevent oil thickening, deposition and sludge formation, but also extend the service life of compressor oil, thereby saving the high cost caused by replacement, shutdown and oil cleaning;
Users who do not know about the air compressor industry will choose brand or well-known equipment in order not to step on the pit. This is why users will ask when purchasing screw air compressors: What brand of screw air compressor is better?
Water-lubricated frequency conversion energy-saving air compressor has stable performance. The main casing of stainless steel, rotor of stainless steel, wear-resistant and oil-free silicon carbide sliding bearing, the design service life of the above parts has reached 25 years. Thus, an absolutely oil-free compression volume produces absolutely oil-free compressed air.
View details
2018 Granklin Group. All rights reserved 沪ICP备18000439号-2
