There is liquid-phase monomer behind the compressor
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I have a question: What causes liquid monomer to be present in the water separator behind the vinyl chloride compressor? How to avoid it. Thank you.
The compressor compresses the monomer to 0.55 MPa; some liquefied monomer may exist at room temperature, and this phenomenon is more noticeable in cold weather.
What type of separator is used in the compressor discharge water separator of the original poster, and what is the design of its internal components?
It is a regular tank with swirl plates.
Well, recently I’ve heard from many companies that the demisting and separation efficiency of cyclone plate separation tanks and scrubber towers equipped with cyclone plates is low, and there is a serious problem of liquid in the outlet airflow. The reason lies in the misuse of swirl plates, as their application limitations are not known.
Control the temperature of the aftercooler properly; it should not be lower than the condensation temperature under pressure, and generally it should not be below 38°C.
The main thing is to control the temperature of the exhaust gas; it shouldn’t be too low
For issues related to the use of swirl plate demisters in compressors, please refer to http://bbs.hcbbs.com/thread-1622897-1-1.html
The temperature behind the control unit is crucial; the specific control parameters depend on the manufacturing process. The goal is to maintain a low temperature while ensuring that there isn’t too much liquid material present. Although this requires some compromise, it is mainly done to achieve a balance； At high temperatures, there is no liquid phase material, but the distillation system has a high cooling load; at low temperatures, it is necessary to handle the liquid phase material frequently. If it is not recovered in time, pressure buildup will occur, which is not worth the effort
The temperature behind the machine is kept around 50°C – do you have a cooler for that area? At low temperatures, VC liquefies and accumulates at the lower points, which can cause pressure fluctuations, undermining system stability and also affecting the distillation system. The distillation system is equipped with an evaporation cooler and a full condenser; the temperature is controlled at a high level, and the load is handled during the pre-distillation stage, making it easier to achieve condensation.