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High Pressure Drop Across A Shell And Tube Hxer

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#1 asade


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Posted 13 June 2019 - 09:17 AM

Hi All,


I was informed we are having high pressure drop across one of HXER for a WFI (Water-For-Injection) supply loop.


Please, I need technical advise on how I can trouble shoot the problem.





#2 Pilesar


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Posted 13 June 2019 - 10:25 AM

Below is advice on how to trouble shoot the problem. Others may add to it.
1) Define the problem.
2) Gather information.
3) Verify the real problem.
4) Try quick fixes.
5) Gather more data.
6) Analyze the data.
7) Determine the likely cause of the problem.
8) Formulate a solution to the problem.
9) Test the solution.
10) Communicate the proposed solution.
11) Implement the solution.
12) Verify the results.
13) Document the results.
14) Communicate the results.
15) Escalate the issue if needed.

#3 Bobby Strain

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Posted 13 June 2019 - 06:43 PM

You should first ask if this is a problem. Next, compare it to what you expect. Then proceed if you can't send the problem back to the originator.



#4 latexman


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Posted 14 June 2019 - 06:02 AM

Talk to your operators and maintenance folks about it.  They are a wealth of knowledge.

#5 chemproc


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Posted 14 June 2019 - 12:50 PM



You will need to provide more information.


Specifically you will need to get the P&ID for the system or at least the PFD.

Also gather the inlet and outlet pressure for the heat exchanger.

If your plant has some sort of historian/DCS, this is a good source of 

to determine when the problem first started.


When you provide this information we can be of more help on this forum.

#6 breizh


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Posted 14 June 2019 - 08:48 PM

Hi ,

You should compare the HX data sheet with the data gathered at site .Make sure the Pressure Gauges or Transmitters are reliable before collecting data .Is it an old issue or a new one ?

What about pluggage of the lines ? do you have filters before HX ? etc....

A sketch will help !

my 2 cents


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