Centrifugal Compressor 285-61-1СМП is one of the recent REP Holding developments. Compressor 285-61-1СМП is designed for compression and transportation of natural gas. It is applied in assembly with gas-pumping units at booster compressor stations of the gas producing industry.
The compressor design employs the active magnetic bearing system and dry gas dynamic seals. The active magnetic bearing provides rotor contactless rotation in the controlled magnetic field. Absence of friction and oil elements increases the life time of the bearing parts, the unit efficiency, reduces operating costs. REP Holding established in-house production of electric drives and magnetic bearings under S2M (SKF) licenses.
Compressor 285-61-1СМП configuration :
- barrel type casing
- - six compression stages
- volute outlet chamber
- dry gas dynamic seals
- active magnetic bearing
Compressor 285-61-1СМП technical characteristics:
|
Value description |
UOM |
Nominal mode |
Second warranted operating mode |
|
Capacity referred to 20°С and 0.1013 MPa |
MMNCMD |
21.30 |
26.93 |
|
Capacity referred to initial conditions |
m3/min |
283.0 |
318.0 |
|
Final gas pressure, abs., at the discharge branch pipe outlet |
MPa |
10.35 |
10.35 |
|
Pressure ratio |
- |
2.2 |
1.953 |
|
Power consumed by compressor |
MW |
23.75 |
26.70 |
|
Compressor rotor speed |
rpm |
4900 |
|
|
Polytropic efficiency, no less than |
- |
0.825 |
0.780 |
|
Gas density referred to 20°С and 0.1013 MPa |
kg/m3 |
0.763 | |
Compressor 285-61-1СМП main advantages:
- “dry” version (dry gas dynamic seals and active magnetic bearing system)
- twofold operational life increase
- higher efficiency due to no mechanical losses
- assemblies and parts commonality (up to 80% elements substitutability)
- universal compression casing accommodating replaceable flow passages with pressure ratio from 1.5 to 4.0
- reduced operational costs
- improved reliability of the design
- reduced amount of additional equipment
Centrifugal Compressor 285-61-1СМП