Excessive pressure at the secondary outlet of the reciprocating compressor
Thread Content
We have a two-stage reciprocating compressor, and the pressure at the exit of the second stage is always too high. Our interlock setting is 120°C; once the temperature reaches this level after the compressor starts operating, it shuts down. Does anyone know what’s going on?
Has the vent valve been checked? ? ? There is a high likelihood that the issue lies with the air valve, or perhaps with the piston rod seal ring. It is recommended to compare the historical temperature trends of the unit under identical operating conditions in order to check the operating status of the gas valves
It mainly depends on the pressure ratio; too low an inlet pressure and high outlet backpressure will result in a high pressure ratio, which in turn leads to an increase in temperature
It is recommended to first check the back pressure of the pipeline and the condition of the circulating water. If everything is normal, then it’s necessary to check whether the exhaust valve is clogged, and whether there are ammonium salts or chloride salts in the compressor medium in the LZ workshop
How high is the pressure in the secondary transfer system? If the pressure in the transfer system is not high. The secondary outlet pressure is high; it is recommended to check the one-way valve for external discharge
Start with the air valve and the cooling system.
The key problem lies with the exhaust valve.