How do I check whether the water cooler tubes have punctured heat exchanger? Cooling tower is tapped with various units like GSU, DPD, SRU etc. Gas is coming in cooling water return line. The unit in-charge says our units are ok. Can we check at heat exchanger? How?
Answers
|
17/05/2015
|
A:
|
S Sivasankaran SABANAYAGAM, CPCL, cpclsiva@yahoo.com
Since your cooling tower is connected with various units, you may check CW return header of individual units ( @ Batterly limit of GSU, DPD, etc) by opening vent / drain of the header and this exercise would definitely find out which unit is contributing to gas leakage. Then you can start checking individual coolers of that particular unit (with Gas on shell side) by opening the vent of CW return pipelines of that cooler. Hope the above would help you to identify the leaky cooler.
Once the cooler is identified, you may even consider routing of CW return pipe vent to flare header by providing temporary pipeline (3/4" or 1" pipe) so that the gas coming to CT will be minimized.
|
|
14/05/2015
|
A:
|
Hubert Mueller, Bayernoil, guhumueller@web.de
Check each individual cooler by sampling at the vent of the coolingwater return line. "Contaminated" coolingwater should be either visible, smellable or could be analysed in the lab. By pinching the relevant valve in order to balance the pressures on both sides of the exchanger you might be able to minimize the leakage until you are able to repair the bundle. Check the cooling water in the cooling tower, it might need a special biocid treatment.
|
|
14/05/2015
|
A:
|
ARUN RS, INDIAN OIL CORPORATION LTD, arunrskmr@gmail.com
Check the cooling water return temperature of each heat exchangers. Then you will find the leaked exchangers from the temperature profile
|
|
12/05/2015
|
A:
|
David Kujawski, Refinery Water Engineering & Associates Inc, dk@refinerywater.net
Check for Calcium levels in the Process Side of the Heat X.
|