Are screw-type compressors more commonly used in refrigerators for synthetic systems, or are centrifugal-type ones more common?
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Now, as more and more new ammonia synthesis plants are built, there is also a wide variety of advanced equipment available. Piston-type gradual withdrawal. But I always hear that there are also manufacturers coming to the factory to discuss switching to screws, and it is also under design. It is said to be efficient and has a stronger resistance to liquid entrainment compared to centrifugal types. Electric or steam propulsion is available in various sizes. Ask if that’s the case.
Currently, screw-type compressors are still widely used in synthetic system refrigerators; we have been using them for over a decade now.
If the cooling load is high, it is more reasonable to use a turbine-driven centrifugal compressor!
We are a medium-sized ammonia synthesis plant that uses one screw compressor along with several small chillers for normal operation.
In our factory, the 3052 unit uses a turbine to drive a centrifugal compressor for cooling.
Thank you to those who offered advice. It seems that there are still quite a few applications that use screws. For high cooling capacity, turbine types seem to be better, I think. But I’ve also heard that some manufacturers use low-pressure steam to drive the screw, which is said to be quite economical; I’m not sure if that’s true.
We have 6 piston ice makers, model 8AS-17, manufactured in Dalian
The screw has a better specific centrifugal force. . .
Reply to 8# kislover: It seems that screws are used more frequently than centrifuges, as screws have greater adaptability.
Centrifugal compressors are quite common in modern gasification plant systems!
Screw chillers are generally used in small production units, but they require a higher load compared to piston compressors. One such chiller can replace 3 or 4 conventional compressors; it is simple to operate and has good resistance to liquid contamination. Its noise level is acceptable for use in production units. Centrifugal compressors are typically used in units with high loads, but they have poor resistance to liquid contamination. Both of these types are widely used in various types of units.