When the operating data of the heat exchanger shows operational problems, the first thing to do is to measure the inlet and outlet temperatures of the fluid on each side with an accurate thermometer. If the temperature readings indicate no problems, then check the flow of each side of the fluid to confirm whether the flow is Within normal range.
If the flow rate is within the normal operating range, the next step is to determine whether there is a problem with the shell or tube side of the heat exchanger. The increase in pressure drop occurs almost on the side of scaling. If water is one of the fluids of the heat exchanger, the heat transfer of the heat exchanger reaches the design value, then the problem is usually on the side of the water.
Corrosion, scaling, dust accumulation, growth of fungi or other substances can occur on the water side. This form of scale generally accumulates within a few weeks, unless the water circulation system has an operational fluctuation, and backwash water coolers are often an effective method of removing impurities in the heat exchanger.
Water usually goes through the tube side of the heat exchanger. Acridine is removed by removing the tube box and visually inspecting the heat exchange tube to determine the type of scaling. The heat exchange tubes of the heat exchanger can be washed with water-cooled drills or cleaned with special tools with high-pressure nozzles, which can blow off dirt or other substances on the surface of the heat exchange tubes.
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