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Motor driven natural gas screw compressor

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

    1.Adopting direct drive, no variable speed gear, 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 withstand radial loads;

    2).Tapered roller bearings support 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.Long service life of screw main engine

    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 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 .

    Main performance parameters of motor-driven natural gas screw compressor
    Product model main parameters GN6 GN10 GN15 GN15H GN20 GN20H GN30 GN30H GN50 GN50H
    Suction Pressure max.(MPag) 0. 3 0. 35 0.35 0.7 0.35 0.7 0.35 0.7 0.35 0.7
    Discharge Pressure max.(MPag) 1.4 1.4 1.4 3.5 1.4 3.5 1.4 3.5 1.4 3. 5
    Delivery(Nm³/D) 6473 11789 15789 18224 22005 25884 32464 30174 50323 54119
    Motor Power(KW) 22 37 45 90 75 132 90 132 132 200
    Shaft power(bhp) 18 29 38 79 52 101 73 112 111 176
    Unit male rotor Dia(mm) . 102 102 102 127 102 127 127 127 167 127

     

    Product model main parameters

     

    GN100

     

    GN100H

     

    GN150

     

    GN150H

     

    GN200

     

    GN200H

     

    GN400

     

    GN400H

     

    GN 800H

     

    Suction Pressure max.(MPag)

     

    0. 35

     

    0. 7

     

    0.35

     

    0.7

     

    0.21

     

    0.7

     

    0.345

     

    0.35

     

    0.7

     

    Discharge Pressure max.(MPag)

     

    1.4

     

    2.45

     

    1.4

     

    2.45

     

    1.4

     

    2..45

     

    1.03

     

    2.45

     

    2. 45

     

    Delivery MAX(Nm³/D)

     

    104115

     

    100444

     

    156251

     

    137671

     

    227115

     

    189803

     

    395697

     

    458623

     

    806900

     

    Motor Power(KW)

     

    250

     

    250

     

    400

     

    355

     

    630

     

    500

     

    800

     

    1600

     

    1800

     

    Shaft power(bhp)

     

    226

     

    216

     

    347

     

    291

     

    496

     

    411

     

    714

     

    1528

     

    1643

     

    Unit male rotor Dia.(mm)

     

    204

     

    167

     

    255

     

    204

     

    204

     

    321

     

    401

     

    401

     

    401

     

     

Keywords:

Motor driven natural gas screw compressor Natural gas screw compressor

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