A heat exchanger is made up of several key parts, like tubes, plates, shells, and baffles. These components can be made from materials such as stainless steel, titanium, or nickel alloys, depending on what the system needs for pressure and flow. Gaskets and seals are also important, and all these parts must meet ASME or API standards.
Regular cleaning is essential for heat exchangers to work well. If a heat exchanger becomes fouled, it can lead to higher energy costs, poor performance, and production losses. Fouling often happens because of dirt, scale, or a buildup of biological material. Corrosion from chemical reactions can also cause deposits or damage. Sometimes, blockages in the flow may require Chemical-In-Place (CIP) cleaning or manual removal. Here are some signs that your heat exchanger needs cleaning:
- The system stops reaching the proper process temperature.
- A higher differential pressure drop between the inlet and outlet.
- A reduction in flow velocity because the fouling restricts channel passages.
- System superheating causes scale formation and fouling.
- More energy is needed for the pump to maintain the flow rate.
- Signs of dirt, mineral scale buildup, slime, corrosion, or leaks.
- Employing thermal imaging cameras to determine cold or hot spots.
- An increase in system alerts and persistent overheating.
- Evidence of tube blockage, erosion, pitting, thermal fatigue, vibration, and “under-deposit” corrosion.
To prevent problems from a dirty heat exchanger, keep an eye on temperature and pressure readings. This information is the best way to know when it’s time to clean. When cleaning is needed, use effective solutions and the right equipment for the job.
Merrick Wheelhouse Industrial Solutions provides descaling and chemical cleaning products for heat exchangers and condensers. Our solutions are safe for the environment, minimize corrosion, and deliver efficient, cost-effective results. To find out more, visit merrickwheelhouse.com.