LNG-BOG compressor
- There will be volatile flash gas(i.e.BOG gas)in LNG storage equipment.In order to fully utilize this gas,BOG can be pressurized to a certain pressure through a compressor and directly supplied to the city pipeline network for use.Alternatively,it can be pressurized to 25MPa and transported to a CNG station for use.
BOG recovery compressors are divided into four basic types according to normal operating conditions:100Nm3/h(50-150Nm3/h),300Nm3/h(200-400Nm3/h),500Nm3/h(400-700Nm3/h),and 1000Nm3/h(800-1500Nm3/h).
Low pressure pipeline compressors use Z-type(vertical),one-stage compression,fully air-cooled,and oil-free reciprocating piston compressors,while medium pressure pipeline compressors mostly use V-type or D-type,two-stage to three-stage compression,fully air-cooled,and oil-free reciprocating piston compressors.
The high-pressure CNG refueling compressor adopts a V-type,W-type,or D-type,four stage compression(with a discharge pressure of 20.0-25.0MPa),fully air-cooled,micro oil reciprocating piston compressor.
The standard configuration of the compressor skid includes sound insulation protection box,compressor host,front separation buffer,interstage separator,explosion-proof motor,transmission components,common base,air circuit system,cooling system,sewage system,operation instrument system,PLC electrical control system,and other components.All equipment is integrated on the skid.
The process pipe port of the compressor is connected to the outside of the base and equipped with relevant flanges/joints,and both the base and box are equipped with lifting devices for easy on-site installation.
