A two-stage compression oil-injected screw compressor for air – is it useful?
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A two-stage compression oil-injected screw compressor for air – is it useful?
I haven’t come into contact with them; single-stage fuel injection is more common
IR has a two-stage compression model that shares a common housing.
Has the energy efficiency been compared with that of single-stage compression? How often is major maintenance required?
In fact, when comparing single-stage and two-stage systems, it depends on the specific design; different manufacturers have varying capabilities in terms of design and manufacturing. Atlas Copco’s single-stage compression is actually better than Ingersoll Rand’s two-stage compression.
Here is a two-stage compression oil-injected screw compressor, with Freon as the working medium
Two-stage models certainly offer better capacity and efficiency, but their maintenance costs are higher than those of single-stage models. As for imported models, apart from IR, there are no other manufacturers producing fuel-injection types; there are many domestic options available. The key issues lie in the lifespan of the rotor and the cooling of the temperature between stages