Gas intake regulation for syngas compressor
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When connecting to the gas supply, for a methanol synthesis gas compressor, should the speed of the compressor be increased to its rated value first, or should the pressure in the synthesis gas compression system be raised first before increasing the speed? Which method is good? Why? Please let fellow sailors discuss.
When driving and increasing speed or pressure, follow the principle of increasing speed first and then pressure, to strictly prevent the unit from entering the surge zone. When increasing voltage, increase speed first; when decreasing speed, decrease voltage first. Do not increase speed while increasing voltage, and do not increase voltage while increasing speed. When increasing voltage, increase the low voltage first; when decreasing voltage, decrease the high voltage first. On the one hand, it prevents surge in the compressor due to high pressure and low speed; on the other hand, it prevents overheating of the thrust bearing in the high-pressure cylinder caused by high speed and low pressure.
The principle of increasing pressure first before increasing speed should be followed!
Agree with what was said above. Strictly prevent engine surge.
It is a basic principle of compressors to increase speed first and then increase pressure
Increase the speed first when boosting voltage, and reduce the voltage first when reducing speed.
When starting to supply gas, the pressure at the inlet is 1.5 MPa, while the pressure in the compressor system is 0.5 MPa; the rotation speed is at the minimum allowable level. Should the compressor system’s pressure be raised to 1.5 MPa first before increasing the speed to the rated value, or should the speed be increased to the rated value first before starting gas supply?
We first pressurized it and then increased the speed to the rated speed, but no abnormalities were detected
It is necessary to follow the principle of increasing speed first when raising pressure, and reducing pressure first when slowing down; otherwise, the compressor is very prone to surge. Generally, it is sufficient to regulate the speed so that it remains at the lowest operating value