Screw Compressors - A Look at Its Processes, Types and Applications

Screw compressors are specifically made to handle areliability is obtained during the procedure thus
wide array of dry material transfer ranging fromallowing the screw compressors to be of great use
granulates, cement and plastics to sand, flour, limeto several applications. Common examples are
and silicate. Its body contains two forms of screwshydraulic power systems, electric motor and
further known as the female and male screws.stationary and mobile applications.
Female screws are those with concave inlets whileThe different types and their specific applications
male screws have convex ones.There is one type known as the rotary screw
Screw compressors operate in opposite directions. Itcompressor. This is found under the kinds of gas
is the female screw that receives the driving power.compressors. It uses a mechanism through a single
The male screw on the other hand, is responsible forscrew or a double counter helical screw. While the
transmitting the power driven by the female version.mechanism does its work, gas can be drawn through
It passes through a set of the so-calledthe casing's port then captured in a certain cavity.
synchronization gears.Discharge of the gas is then made to another port in
Processesthe casing. This type of screw compressor is applied
Aside from the major roles of male and femalein general industries like those trailer units powered by
screws in a compressor, there are other essentialdiesel as seen in construction sites.
parts of the process. While the screws start rotating,Another specific type is the oil-flooded screw
the admission process takes place. This is where thecompressor. This is often functional in sealing and
air fills the inlet port thereby occupying the spacecooling gas charges. As the oil flows in the process, it
between the two screws.undergoes separation from the discharge stream
Next to the admission phase is the compressionbefore it is cooled and filtered. Later on, the oil is
phase. This is when the male thread stops or blocksrecycled.
the female thread. During this stage, the rotation ofOil-free screw compressors are also examples of this
the screws starts to decrease. As soon as theindustrial machinery. Without the presence of any oil,
volume reaches the compressor's delivery outlet thenair compression is made probable by the screws. This
the exhaust phase takes place.type is relatively important in medical researches as
The exhaust phase is that instance when the screwswell as in semiconductor industries.
no longer have contact with each other. Total