초록 ▼

An oil flooded screw compressor including suction, rotor, and discharge sections having suction, intermediate pressure, and discharge ports, respectively, and an oil sump. The discharge section includes radially spaced internal and external housings, with the internal housing receiving an oil-gas st

An oil flooded screw compressor including suction, rotor, and discharge sections having suction, intermediate pressure, and discharge ports, respectively, and an oil sump. The discharge section includes radially spaced internal and external housings, with the internal housing receiving an oil-gas stream from the rotor section. A filter is disposed to surround the internal housing, with the filter including a cylindrical, foraminate body portion, an end wall, and a filter pad against the end wall. The oil-gas stream from the rotor section exits the inner housing, via an opening which forms part of a first stage of oil removal. The oil-gas stream strikes the filter pad, removing oil as the oil-gas stream is forced to turn 90 degrees to exit the filter through the foraminate body portion, which also removes oil. The filter functions as second and third stages of oil removal.

대표청구항 ▼

An oil flooded screw compressor including a drive shaft having a longitudinal drive axis for substantially horizontal orientation; suction, rotor and discharge sections having suction, intermediate pressure, and discharge ports, respectively; and an oil sump for collection of oil below the discharge

An oil flooded screw compressor including a drive shaft having a longitudinal drive axis for substantially horizontal orientation; suction, rotor and discharge sections having suction, intermediate pressure, and discharge ports, respectively; and an oil sump for collection of oil below the discharge section, characterized by: the discharge section having radially spaced internal and external housing means, with the internal housing means receiving an oil-gas stream from the rotor section, filter means disposed to surround the internal housing means, said filter means including a cylindrical, foraminate body portion having first and second axial ends, a longitudinal filter axis disposed parallel to the drive axis, and end wall closing the first axial end, and an oil separating filter pad disposed against said wall portion, said end wall of the filter means defining a circular channel portion uniformly spaced about the filter axis, with said channel portion snugly receiving said filter pad, said discharge port and oil sump being respectively disposed above and below the filter axis, said oil-gas stream exiting said internal housing means and entering said filter means via an oil-gas stream opening in the internal housing means which is part of a first stage of oil removal, said oil-gas stream being directed by said oil-gas stream opening against the filter pad, removing a portion of the oil from the oil-gas stream as the oil-gas stream is forced to turn 90 degrees to exit the filter means through the cylindrical body portion of the filter means, which removes additional oil from the oil-gas stream before the gas stream exits the discharge port, with oil trapped by the first stage of oil removal, the filter pad, and the cylindrical body portion of the filter flowing to the sump.