[Q&A Question 174] 10.11.2016
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This post was last edited by liuquan1100 on 2016-10-11 06:42. [Q&A Question 174] 2016.10.11: Why are the flare pressures different for pumps using dry gas seals under the same inlet pressure? The answer key will be available after responding; scoring is based on addressing the key points. Answer: 1. Different pumps have varying amounts of micro-leakage, which results in different pressures in the emission flare. 2. There are issues with the flow path behind the flare line (such as clogged check valves). 3. Liquid from the liquid removal tank at the bottom of the dry gas seal ends up making its way into the flare line. Calling for sponsors for the “2016 Top 10 Members of Haichuan Award Selection” http://bbs.hcbbs.com/thread-1628108-1-1.html (Source: Haichuan Chemical Forum)
The leakage amount results in different pressure drops
Let me guess – is it the outlet pressure that’s different?
All pumps have varying amounts of micro-leakage; the path behind the flare line is blocked, and liquid from the liquid removal tank at the bottom of the dry gas seal ends up in the flare line.
Different resistances result in displayed errors! The sealing issue
1. Different pumps have varying amounts of micro-leakage, which results in different pressures in the emission flare. 2. There are issues with the flow path behind the flare line (such as clogged check valves). 3. Liquid from the liquid removal tank at the bottom of the dry gas seal ends up making its way into the flare line
I can’t even understand the question – is a dry gas seal used for pumps? Still a pneumatic press