Stirrer tower inlet check valve
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At the check valve leading into the stripping tower, it often happens that after the plant is shut down and restarted, urine crystals get stuck there, resulting in a large pressure difference between the carbon dioxide compressor and the high-pressure side. Are there any good ways to deal with high pressure differences? Thank you
The pressure difference is high; are there any effective solutions for normal production?
Regarding the owner’s question, it can be prevented and addressed from two aspects: 1. Perform precise operations to strictly prevent liquid leakage during parking； 2. Thoroughly rinse after parking; this should be treated as a key part of the rinsing process.
Just rinse it with water – we used to do this all the time ten years ago.
During normal production, the carbon dioxide pipeline is flushed with washing water, but the effect is not significant. Are there any proven methods for handling this during normal production? “”Just rinse it with water – we used to do this all the time ten years ago. “”
The urine pipeline and the methylammonium solution pipeline must both be thoroughly flushed with condensate
The material used for the inlet check valve in the stripping tower is usually 316L MOD or double-direction stainless steel. The valve ball and seals are relatively soft and prone to deformation, which can cause sticking during operation and poor sealing. It is necessary to check these components before each shutdown; if any problems are found, they must be repaired to ensure no sticking and proper sealing ! !