2026-04-10Views：
Prospective Industry Research Institute "2014-2018 China air compressor industry production and marketing demand forecast and transformation and upgrading analysis report" data show that the western developed countries screw air compressor market share of about 80%. The Chinese market is expected to grow at an average annual rate of 15%. 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.
The [water lubricated air compressor] produced by Shanghai granklin group is sold in various industries throughout the country. those who need inquiry can contact our company. Contact number: 18964858538
The maintenance methods and precautions of the air compressor are as follows: The maintenance of the air compressor is divided into small maintenance and large maintenance. The depth of the process components of the air compressor is the same and different. The following is a common and practical air compressor maintenance method and Precautions.
Now many enterprises with high gas quality will choose oil-free screw air compressor. Therefore, the quality of oil-free screw air compressor is more important for screw air compressor. However, there are many factors that affect the quality of compressed air, not only the air compressor itself, but also the poor environment and improper operation may lead to the decline of compressed air quality and fail to meet the production requirements. Therefore, if you want to make your oil-free screw air compressor continuously produce high-quality compressed air for you, then you must ensure that you give him a good working environment. So what are the requirements for the use of oil-free screw air compressor to the environment?
The water lubricated air compressor produced by granklin group does not contain oil. it only needs to replace the air filter element and water filter element regularly according to the manufacturer's requirements and maintain the head of the water lubricated air compressor. Oil and no oil in the air compressor generally refers to the amount of oil content in the gas discharged from the exhaust port of the air compressor. Generally, the oil content of the oil machine is relatively large, and the oil content of the oil-free oil machine is 0.01ppm. Therefore, the oil content is used to distinguish the oil and no oil in the air compressor.
View detailsShanghai granklin group co., ltd. specializes in air compressors. Air compressor accessories of various brands; Cold dryer, suction dryer (compressed air adsorption dryer achieves drying effect through "pressure change" (pressure swing adsorption principle). Since the ability of air to hold water vapor is inversely proportional to the pressure, a part of the dried air (called regeneration gas) is decompressed and expanded to atmospheric pressure. This pressure change makes the expanded air drier, and then allows it to flow through the desiccant layer to be regenerated without air flow (I. e. the drying tower that has absorbed enough water vapor). The dried regeneration gas absorbs the water in the desiccant, take it out of the dryer to achieve the purpose of dehumidification.
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What is the price of oil-free and water-free air compressor? Oil-free air compressor does not contain a drop of oil during compression. The air compressor head needs cooling and lubrication, and water is used as the lubricating medium. This effect can be achieved very well. Industrial production often needs to be matched with post-treatment such as cold dryer, suction dryer, precision filter, air storage tank, etc.
Granklin air compressor is the first choice. The air compressor produced by Granklin Group adopts water lubrication, the whole machine is made of stainless steel, and the compressed gas is 100% free of oil. The traditional method of determining the compressed air requirements of a new air compressor is to use the gas volume of all gas-using equipment.
The medical topic has always been a scene that Chinese people attach great importance to. Due to the country's vigorous development of high and new technology in recent years, water-lubricated air compressors have also made great progress. The use of single-screw water-lubricated air compressor, the full name (water-lubricated oil-free screw air compressor) in medical, pharmaceutical, equipment production, oxygen preparation and other eye-catching performance. What is the difference between medical air compressor and industrial air compressor?
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