Increased inlet pressure of the piston compressor
Thread Content
The natural gas piston compressors use two-stage compression; previously, the inlet pressure was 0.25 MPa and the outlet pressure was 2.2 MPa. Due to changes made by the natural gas company to the pipelines, the inlet pressure to the compressors increased to 1.04 MPa. This change in operating conditions has an impact on the components in the first stage of the compressors.
As long as every part of your equipment is under no pressure, it’s fine. High inlet pressure can save energy.
The power of the compressor has increased, and the motor does not have enough power. The stresses on the internal components (piston, piston rod, crankshaft, connecting rod, crosshead) have increased significantly.
Air intake volume (1.04+.1)/(0.25+0.1)=3.257,
The air intake volume is 3.257 times the original. You asked if the power would increase, and the output has also increased by more than 3 times.
Do not start the machine in operation; accidents may occur if it is started, such as issues with the piston rod, motor, or the setting of the primary safety valve. It is recommended that the compressor manufacturer review the situation before deciding on a plan for starting the machine and determining the maximum inlet pressure
It is recommended to recalculate whether the piston force is excessive and whether the motor power is still sufficient before conducting a trial run; otherwise, there may be safety hazards.
One atmosphere has been added; inlet absolute pressure ratio
The load is too high; it cannot be used. The safety valve activates, the motor current is high, and this increases the risk of burnout