A screw compressor is a piece of equipment which is also known as a rotary screw compressor. It is basically a gas compression unit which can be used to force air into a sealer chamber. It does this by using two threaded screws or rotors, as they are often called, which have spaces between the threads and threaded taps. This is where the gas is compressed into the threads. When this happens, air is forced to travel along with the thread as it spins into the chamber and the gas itself moves through the thread until it is compressed inside the chamber.
Types of Screw Compressor
There are two main types of screw compressor. The first is a dry screw compressor which does not use a lubricated seal inside its chambers in order to operate. The dry screw compressor has both male and female rotors which it uses in the dry compressor unit and uses timing gears to maintain compression accurately.
Without the various timing gears which are located in the compressor unit, the dry screw compressor would be unable to function correctly because, if there is any change in the screw’s operation, the screw compressor can fail completely. If the screws are not stable, then many problems can occur which will completely screw up the timing of their operation.
Oil-flooded Unit
The other type of screw compressor which is commonly used is known as an oil-flooded unit because, unlike the dry screw compressor, its chamber is filled with lubricating oil, as well as, two rotors. The oil acts as a divider between the two opposing screws and also creates a hydraulic seal between them as they get to work. Rotors need to be extremely precise and this oil ensures that they are by stopping air or gas from being released.
The oil in this type of screw compressor also gives weight to the compressor which offers an opposing force to the rotors when in motion.
Uses
The screw compressor is most often used in construction or industrial operations which use compressed air systems. When air powered tools are used, you will usually find a screw compressor is needed.
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