If the inlet flow rate of the compressor increases, how does its speed change?
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Our compressors are centrifugal compressors. The first question is: when the flow rate at the inlet increases, the pressure also increases; so how does the rotation speed change? The inlet and outlet valves are both fully open. If the pressure increases to match the outlet pressure, then will the compressor no longer need to run? Thank you for your guidance. Second question: if there is liquid in one of our tanks, what causes that? If the gas flow rate increases and the pressure rises, won’t that carry along the liquid? ?
When negotiating agreements for centrifugal compressors, requirements are set regarding the inlet and outlet pressures; the inlet pressure must not exceed a certain value, as exceeding it will certainly cause damage to the unit (as for what kind of damage, I’m not sure if anyone knows). If the inlet pressure is as high as the outlet pressure, then there is no need to install a compressor. What kind of jar is a section of jar? Inlet gas-liquid separator tank? If it is a separation tank in an enterprise, the liquid is carried in from the preceding process.
When there is liquid present, it is necessary to strengthen the liquid removal process and control the temperature at the compressor inlet; liquid presence is also related to temperature
When the inlet flow rate increases, the rotational speed should decrease. However, thanks to the turbine’s speed control mechanism, as the speed gradually drops, the turbine’s speed control valve opens further to maintain balance.
If the pressure increases once it is applied, it will become even higher after compression, which is very likely to cause the safety valve to activate. Worse still, it can cause damage to the compressor. Increased flow and increased pressure can cause liquid entrainment.
An increase in flow rate does not cause a change in the compressor’s speed. However, if liquid is present, it can cause liquid slugging and damage the compressor
Hello: Assuming that the inlet pressure and outlet pressure increase, the compressor rotor will still continue to rotate in its original direction due to inertia. However, the compressor reverses direction only after the inlet pressure exceeds the outlet pressure for a while. Reversal can cause wear on the one-way helical groove of the compressor’s dry gas seal, thereby damaging the dry gas seal. Therefore, to protect the compressor and the dry gas seal, a high inlet pressure interlock is installed.
If the inlet flow rate of the compressor increases, how does its speed change? The compressors in our facility are driven by condensing-type turbines, and the speed of these turbines is adjusted by using hydraulic oil to control the opening degree of their valve mechanisms, just as Guoguo Baba said
Based on the owner’s description, it seems to be a refrigeration compressor. This type of compressor regulates the inlet pressure by adjusting its speed; an increase in inlet pressure leads to an increase in the evaporation temperature. To maintain the heat exchange efficiency, it is necessary to increase the speed and thereby reduce the inlet pressure. When the machine is shut down, the inlet and outlet pressures are equal, and no gas flows anymore; as a result, the refrigeration compressor can no longer perform its cooling function. The issue of liquid carried over can be attributed to two factors: first, the unit is equipped with a temperature control valve, and if this valve is too large, liquid can be carried over; second, when the liquid level in the evaporator is high, the gas exiting contains liquid