Points to note when using and maintaining heat exchangers

1. Routine maintenance of heat exchanger

In daily operations, special attention should be paid to preventing fluctuations in temperature and pressure. First, the pressure should be ensured to be stable, and overpressure operation should never be allowed.

2. Cleaning of heat exchanger

After the heat exchange equipment has been operated for a long time, due to corrosion, erosion, scaling, coking and other reasons of the medium, the internal and external surfaces of the tubes will be scaled to varying degrees or even blocked. Therefore, thorough cleaning must be carried out during shutdown and maintenance. Commonly used cleaning (sweeping) methods include air sweeping, water washing, steam sweeping, chemical cleaning and mechanical cleaning.

However, this traditional cleaning method, such as mechanical methods (scraping, brushing), high-pressure water, chemical cleaning (pickling), etc., has many problems when cleaning equipment: it cannot completely remove scale and other sediments, and the acid causes corrosion to the equipment. Loopholes, residual acid will cause secondary corrosion or subscale corrosion on the material, eventually leading to the replacement of equipment. In addition, the cleaning waste liquid is toxic and requires a lot of money for wastewater treatment. However, the use of highly efficient, environmentally friendly, safe, non-corrosive, and biodegradable Fostech environmentally friendly cleaning agents not only has good cleaning effects but also does not corrode the equipment, ensuring the long-term use of the condenser.