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Key Considerations for the Operation and Maintenance of Heat Exchangers

Release date:

2025-12-20

What should be kept in mind during the operation and maintenance of heat exchangers? Today, we’ll focus on the key considerations for their use and upkeep.

I. Daily Maintenance of Heat Exchangers

During routine operations, special attention should be paid to preventing fluctuations in temperature and pressure; first and foremost, pressure must be kept stable, and overpressure operation is strictly prohibited.

II. Cleaning of Heat Exchangers

After prolonged operation, heat exchange equipment often develops fouling on both the inner and outer surfaces of its tubes due to media corrosion, erosion, scale deposition, coking, and other factors, sometimes leading to blockages. Therefore, thorough cleaning is essential during shutdowns for maintenance. Common cleaning (or descaling) methods include air blowing, water washing, steam blowing, chemical cleaning, and mechanical cleaning.

However, conventional cleaning methods—such as mechanical techniques (scraping, brushing), high-pressure water jetting, and chemical cleaning (acid pickling)—pose numerous challenges when applied to equipment: they fail to completely remove scale and other deposits; acidic solutions can corrode equipment, leading to leaks; residual acid may cause secondary corrosion or under‑deposit corrosion, ultimately necessitating equipment replacement. Moreover, the resulting waste liquids are toxic, requiring substantial investment for wastewater treatment. In contrast, using Fushitaike’s environmentally friendly cleaning agent—highly efficient, eco‑friendly, safe, non‑corrosive, and biodegradable—not only delivers excellent cleaning performance but also avoids corrosion, ensuring the long‑term reliable operation of condensers.