2026-04-10Views：
The difference between water injection screw compressor and oil injection screw machine is mainly reflected in the lubrication and cooling methods. The following is a specific analysis:
working principle:
water jet screw compressor: the rotor is cooled by water jet cooling. When the compressor is working, the water spray system will spray the cooling water on the rotor to cool the rotor. At the same time, the water also turns into steam, which is discharged with the air. In this way, the operation of the compressor is more stable and the cooling effect is better.
Fuel injection screw machine: Inject fuel into the engine in a certain proportion, and work by adjusting the combustion quality and efficiency of the fuel. It is mainly composed of a cast shell, cylinder heads on both sides, internal gears, screws, fuel injectors, transmission shafts and other components. When the screw rotates, the oil in the oil passage is squeezed through the geometric contour of the screw to form a certain pressure difference, so that the oil is injected into the inside through the fuel injection nozzle to realize the fuel injection.
Lubrication and cooling method:
water jet screw compressor: use water as cooling medium, directly injected into the cylinder for cooling. This method not only has a good cooling effect, but also is closer to isothermal compression, which makes the energy consumption lower. At the same time, the exhaust temperature can be controlled at a lower level (such as about 50 ℃), so there is no need to equip with an aftercooler.
Oil injection screw machine: the use of oil as a lubricant, oil in the compression process also played a certain cooling effect. However, the cooling effect may be slightly less than that of water spray cooling.
Applications and features:
water-jet screw compressor: It is especially suitable for compressing special gases with low critical points, and due to its efficient cooling system, it has advantages in certain applications that require strict temperature control.
Oil injection screw machine: widely used in refrigeration, refrigeration, air conditioning and chemical process and other refrigeration equipment. It has simple structure, few wearing parts, and can operate under the working conditions of large pressure difference or pressure ratio, and has good air transmission regulation.
In summary, the main difference between the water-injected screw compressor and the oil-injected screw machine lies in its working principle, lubrication and cooling methods, and application fields. Which type of compressor to choose depends on the specific application needs and scenarios.
The pressure of the plant gas supply usually depends on the specific application needs and equipment specifications. Generally speaking, the air source pressure for industrial use is usually between 0.6MPa and 1.0MPa, which is a relatively general range and is suitable for most pneumatic tools, automation equipment and other
The normal negative pressure value of the air inlet of the air compressor should generally be between 0.5 and 0.7bar. This range can ensure the normal operation of the air compressor and avoid overheating or overpressure. At the same time, the limit value of the suction negative pressure of the air compressor is about-50kPa (I .e. -0.5bar), but the actual
The oil content of compressed air depends on the industry demand and equipment configuration, and is usually graded by ISO 8573-1 standard. The following is the key information: 1. oil content grade standard grade oil content (mg/m & sup3;) applicable scenario level 1 ≤ 0.
In the field of air compressor, permanent magnet variable frequency screw air compressor with its high efficiency, energy saving and stable characteristics, is gradually becoming the mainstream choice of the market. As a leader in the industry, Shanghai Granklin Group produces water-lubricated screw air compressors with permanent magnet frequency conversion technology.
The screw air compressor cannot supply air for the following reasons: The air intake filter is clogged: After long-term operation, the air intake filter may accumulate or be blocked, resulting in a decrease in air intake, which affects the air supply of the air compressor. ability. Regular cleaning or replacement of the filter is the solution to this
Oil-free air compressors and oil-free air compressors have their own advantages and applicable scenarios, and there is no absolute "good" or "bad". The choice of which type of air compressor depends on the specific application requirements and the use of the environment. No oil empty
When choosing an air compressor, an oil-free silent air compressor and an oil-free air compressor have their own advantages and disadvantages. The specific choice depends on factors such as application requirements, working environment and budget. The following is a detailed comparison of the two types of air compressors: oil-free silent air compressor advantages
In the rehabilitation industry, air compressor, as one of the key equipment, provides a safe and efficient rehabilitation environment for patients. Among them, the water-lubricated screw air compressor produced by Shanghai Granklin Group has become the first choice for many rehabilitation institutions because of its unique technical advantages and environmental protection characteristics.
The pressure generated by the compressor is not fixed, but is determined according to the specific compressor type, design specifications and application scenarios. In general, the compressor can provide a wide range of pressure, from small household compressors produced relatively
In industrial production, compressed air, as an important power source, is widely used in various fields. For general industrial applications, the pressure requirement of compressed air is a critical parameter. Under normal circumstances, the pressure range of general industrial compressed air is 7bar to 10
2018 Granklin Group. All rights reserved 沪ICP备18000439号-2
