US 12,298,093 B2
Cooling water monitoring and control system
Craig Myers, Lisle, IL (US); Anupam Prakash, Aurora, IL (US); Ravindra Raghavapudi, Aurora, IL (US); Steven Kramarczyk, Oswego, IL (US); Stephen J. Hinterlong, Elburn, IL (US); Daniel Meier, Naperville, IL (US); and Jorvic Vital, Aurora, IL (US)
Assigned to Ecolab USA Inc., Saint Paul, MN (US)
Filed by Ecolab USA Inc., Saint Paul, MN (US)
Filed on May 17, 2023, as Appl. No. 18/318,777.
Application 18/318,777 is a continuation of application No. 16/185,817, filed on Nov. 9, 2018, granted, now 11,668,535.
Claims priority of provisional application 62/720,605, filed on Aug. 21, 2018.
Claims priority of provisional application 62/584,671, filed on Nov. 10, 2017.
Prior Publication US 2023/0288153 A1, Sep. 14, 2023
This patent is subject to a terminal disclaimer.
Int. Cl. F28G 9/00 (2006.01); C02F 1/00 (2023.01); C02F 1/50 (2023.01); C02F 1/66 (2023.01); C02F 5/00 (2023.01); C02F 103/02 (2006.01); F28F 27/00 (2006.01); F28G 15/00 (2006.01); G01K 17/06 (2006.01); G01K 17/10 (2006.01); G01N 17/00 (2006.01)
CPC F28G 9/00 (2013.01) [C02F 1/00 (2013.01); C02F 1/008 (2013.01); C02F 1/50 (2013.01); C02F 1/66 (2013.01); C02F 5/00 (2013.01); F28F 27/00 (2013.01); F28F 27/003 (2013.01); F28G 15/003 (2013.01); G01K 17/06 (2013.01); G01K 17/10 (2013.01); G01N 17/008 (2013.01); C02F 2103/023 (2013.01); C02F 2209/005 (2013.01); C02F 2209/02 (2013.01); C02F 2209/06 (2013.01); C02F 2209/105 (2013.01); C02F 2209/18 (2013.01); C02F 2209/40 (2013.01); C02F 2303/20 (2013.01); F28F 2200/00 (2013.01)] 28 Claims
OG exemplary drawing
 
1. A method comprising:
monitoring, by one or more processors, a heat transfer efficiency of at least one heat exchanger and establishing a heat transfer efficiency trend for the heat exchanger, the heat exchanger having a process stream-side and a cooling water stream-side;
detecting, by the one or more processors, a change in the heat transfer efficiency trend;
receiving, by the one or more processors, data indicative of scale fouling on the cooling water stream-side;
receiving, by the one or more processors, data indicative of corrosion fouling on the cooling water stream-side;
receiving, by the one or more processors, data indicative of biofouling on the cooling water stream-side;
determining, by the one or more processors, a predicted cause of the detected change in the heat transfer efficiency trend based at least on the received data indicative of scale fouling, corrosion fouling, and biofouling; and
controlling addition of a chemical additive into a cooling water that is in fluid communication with the cooling water stream-side of the at least one heat exchanger based on the predicted cause.