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What are the advantages and disadvantages of screw compressors?

  • Categories:Industry News
  • Author:
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  • Time of issue:2020-11-05 11:07
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(Summary description)The advantages and disadvantages of screw compressors?

What are the advantages and disadvantages of screw compressors?

(Summary description)The advantages and disadvantages of screw compressors?

  • Categories:Industry News
  • Author:
  • Origin:
  • Time of issue:2020-11-05 11:07
  • Views:
Information

The three main forces in the compressor market today are piston compressors, screw compressors, and scroll compressors. Among the three, screw compressors are the heaviest. What characteristics do screw compressors dominate the market? Next, let's take a look at the advantages and disadvantages of screw compressors.
Screw compressors are divided into single-screw compressors and twin-screw compressors. Once invented, they have quickly been widely used in the industrial field.
The main advantage
1. It has high reliability, few parts and no wearing parts, so it runs reliably and has a long life. Generally, the design life of the main screw machine head is 30 years.
2. Convenient operation and maintenance, high degree of automation, operators do not need to go through long professional training to realize unattended operation.
3. Good power balance, no unbalanced inertial force, the machine can work steadily and at high speed, and realize no foundation operation.
4. Strong adaptability, with the characteristics of forced air delivery, the volume flow is almost not affected by the exhaust pressure, and it can maintain high efficiency in a wide range of working conditions. Without any changes to the compressor structure, It is suitable for a variety of working conditions, so it is easy to finalize mass production.
5. Multi-phase mixed transmission, there is actually a gap between the rotor tooth surfaces, so it can withstand liquid impact, and can pressurize liquid-containing gas, dust-containing gas, and easily polymerized gas.
6. The flow rate of the slide valve is adjusted, no backflow is required, which can effectively reduce energy consumption.
Main disadvantage
1. High cost: Because the tooth surface of the rotor of the screw compressor is a space curved surface, it needs to be processed on expensive special equipment with special tools. In addition, the processing accuracy of the screw compressor cylinder is also high.
2. Cannot be used in ultra-high pressure occasions: Due to the limitations of rotor stiffness and bearing life, screw compressors are only suitable for low, medium and high pressure ranges, and the exhaust pressure is generally not more than 10MPa. Ultra-high pressure is still dominated by reciprocating machines. 

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