Catalytic retrofitting of busbars
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Cavitation-induced leaks often occur at the elbows and manual valves in the catalytic cracking unit’s pipeline systems. How can this problem be solved?
Keep the manual valve fully open; try to avoid using 90-degree elbows – give it a try
This post was last edited by longziyun on 2020-12-30 at 16:22. The elbows should be replaced with thick-walled elbows having a larger radius of curvature; the manual valves should cease to be ordinary gate valves and instead be replaced with ball valves of better quality. A thick-walled orifice plate should also be installed before the final valve.
A back wall orifice plate has now been added behind the final manual valve
Any suggestions on pipeline materials? The current one is 20#
This post was last edited by longziyun on 2021-1-14 at 20:38. The orifice plate must be placed in front of the valve to be effective; what effect can it have if it is placed behind the valve, thereby impacting the orifice plate? The elbows used are still 90° elbows. Elbows with a normal radius of curvature, also known as short-radius elbows, refer to those whose radius of curvature is equal to the diameter of the pipe, that is, 1 time the diameter ； Elbows with a large radius of curvature are also known as long-radius elbows; generally, the radius of curvature is assumed to be 1.5 times the diameter of the pipe. There is no need to change the material of the pipelines and elbows.