Patent ID: 9109600
Filing Date: 2015-08-18
Classification: B01D,F04C

Abstract:
1. A two-stage medium-pressure screw air compressor, comprising: a primary screw compressor driven by a motor; a secondary screw compressor also driven by the motor; a gas-liquid separator having a side wall with a first gas-liquid inlet connected to the side wall and a first oil outlet connected to a mid section of the side wall, the secondary screw compressor communicating with the gas-liquid separator via the first gas-liquid inlet; a plurality of oil distributors for receiving processed oil from the gas-liquid separator via the first oil outlet, a first filter, a cooler and an oil tube; a secondary oil-water separator connected to the first oil outlet of the gas-liquid separator, the secondary oil-water separator having an upper separating tank with a top and a bottom and a lower separating tank with a top and a bottom, a plurality of brackets being mounted on the lower separating tank and the upper separating tank being mounted on top of the plurality of brackets; a second oil inlet connecting to the top of the upper separating tank, the second oil inlet having an electromagnetic valve; a second oil outlet connecting to the bottom of the upper separating tank, the second oil outlet having an electromagnetic valve, the second oil inlet connected to the first oil outlet; an electric ball valve connecting the upper separating tank to the lower separating tank enabling liquid to flow between the two separating tanks; and a secondary drain electromagnetic valve connected to the bottom of the lower separating tank.