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Natural gas driven screw compressor

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  • Main features of Dragon Force natural gas-driven screw compressor series

    1. Direct drive, no gears, higher reliability

    1). Avoid the possibility of failure caused by gear wear and increase reliability;

    2). Reduce vibration and noise;

    3). Higher transmission efficiency;

    4). Reduce the power consumption generated by the gear part;

    5). Reduce the lubricating oil consumed on the gears, and at the same time increase the life of the lubricating oil.

    2. The bearing is arranged in a special way and the force is better

    1). Roller bearings are used to bear radial loads;

    2). Tapered roller bearings bear axial and radial forces;

    3). No start-up pre-lubrication requirements.

    3. Balance piston (reduce bearing stress)

    The balance piston is installed on the two rotors. Under the action of pressure, oil enters the piston to produce a force that partially offsets the thrust load. This will reduce the thrust acting on the thrust bearing, and the bearing life will be longer.

    4. The screw main engine has a long service life

    The American Sullair process gas special screw main engine has been deeply cultivated in the field of special compressors for decades. After continuous improvement and innovation, the performance is far better than similar screw main engines of other brands. Practice has proved that the Sullair screw main engine has superior performance and good reliability, and the service life of the main engine is more than 80,000 hours.

    5. The screw host adopts a mechanical seal with zero leakage

    The American Sullair screw main engine is optimized for high-pressure working conditions. The John Crane mechanical seal with reliable performance and two-stage seal structure is selected to ensure that the shaft seal of the screw main engine has zero leakage and no oil and natural gas overflow the compressor.

    1)The first stage is a labyrinth seal structure with reverse threads. If oil enters the shaft seal, the reverse threads will pump the oil back into the compressor;

    2)The second level is a high temperature resistant and hardened graphite sealing structure, and the tungsten surface and fluorine rubber elastomer have a good sealing effect.

    6.High exhaust pressure

    Dragon Force's natural gas driven screw compressor has a maximum discharge pressure of 507psig (3.5Mpag), which is currently the world's highest technology for screw compressors.

    7.Advanced purification design

    At present, the natural gas compressor on the market needs to be equipped with additional natural gas pretreatment equipment before use to ensure that the gas source enters the compressor without impurities, while the user of Guanruida natural gas screw compressor does not need to configure a purification device, and can directly connect to the wellhead for compression work .

    8.Environmentally friendly design

    Dragon Force natural gas screw compressor originated from the United States, and pays special attention to environmental protection, automatically recovers impurities and special treatment, and the body is in harmony with nature.

    9.No need for electricity in remote areas

    Dragon Force natural gas compressor can use natural gas source to generate power drive, without the need for users to configure additional power supply facilities, reducing user costs.

    10.Satellite remote control

    The natural gas-driven screw compressor can be equipped with PLC to realize remote satellite remote control. At the same time, it uses the solar energy and wind energy on site to transmit signals to the remote base station, which can realize completely unattended and remote control operation under extremely harsh conditions. 

    Main performance parameters of screw compressor driven by natural gas engine
    Model
    Main parameters
    GNE30 GNE45 GNE50 GNE70 GNE75 GNE100 GNE150 GNE200 GNE250 GNE300
    Intake pressure Max.(MPag)
    Suction Pressure
    0. 35 0. 35 0.35 0.35 0. 35 0. 35 0. 35 0. 35 0. 35 0. 35
    Exhaust pressureMax.(MPag)
    Discharge Pressure
    1.4 1.4 1.4 1.4 1.4 1.4 1.4 1.4 1.4 1.4
    Flow(Nm³/D)
    Delivery
    8235 11088 14410 20184 20184 29706 46823 61303 72100 85505
    Engine power(HP)
    Engine power Max.
    30 45 50 70 75 100 150 200 250 300
    Shaft power(bhp)
    compressor
    29.3 37.7 48.1 66.4 73.6 93.5 143.8 186.7 219 269.3
    Screw diameter(mm)
    Unit male rotor Dia.
    102 102 102 102 102 127 167 167 204 204
    Rotating speed(r/min)
    speed
    1800 1800 1800 1800 1800 1800 1800 1800 1800 1800

     

    Model
    The Main parameters
    GNE400 GNE600 GNE75H GNE100H GNE150H GNE200H GNE250H GNE300H GNE400H GNE500
    Intake pressure Max.(MPag)
    Suction Pressure
    0. 21 0. 21 0.35 0.35 0.7 0.7 0.7 0.7 0.7 0. 35
    Exhaust pressure Max.(MPag)
    Discharge Pressure
    1.38 1.03 1.72 2.76 3.50 3.50 3.50 3.50 3.50 2.60
    Flow(Nm³/D)
    Delivery
    88215 163686 16290 12839 24460 36381 49496 58448 78068 102476
    Engine power (HP)
    Engine power Max.
    400 600 75 100 150 200 250 300 400 500
    Shaft power(bhp)
    compressor
    359.3 533 67 90 134.1 174.7 222.5 262.9 362.5 449.6
    Screw diameter(mm)
    Unit male rotor Dia.
    309 309 127 127 127 127 127 127 127 255
    Rotating speed(r/min)
    speed
    1800 1200 1600 1450 1500 1600 1700 1600 1700 1150

     

    Double pressure model Double discharge pressure compressor(option):

    The unit can be equipped with a high-pressure main engine with an exhaust pressure of 1.3Mpag, up to 3.5Mpag; the unit can be equipped with a dual-pressure control system to adapt to different working conditions in winter and summer.

     

Keywords:

Natural drive screw compressor natural gas screw compressor

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