How to solve the loss of graphite heat exchanger at high temperature

The graphite heat exchanger equipment is made of graphite material. Because graphite has acid corrosion resistance and good thermal conductivity, the graphite core is made into a block-hole structure separated vertically and horizontally. When the two media pass through each other, the high temperature The medium continuously transfers heat to the graphite heat exchanger, and the low-temperature medium continuously obtains heat from the graphite heat exchanger, thus successfully realizing heat exchange.

The graphite heat exchanger equipment is suitable for non-oxidizing or weakly oxidizing strong acids, alkalis, salt solutions, organic Acid most organic solvents and complex media. The thermal conductivity is higher than that of many metals, the linear expansion coefficient is small, high temperature resistance, thermal shock resistance, the surface is not easy to scale, no pollution, and the machining performance is good. Low density and light weight.

Before use, check whether the connection and insulation of the cooling water pipes of the graphite heat exchanger equipment are in good condition. When using, first open the cooling water outlet valve of the graphite heat exchanger equipment, and then slowly open the cooling water inlet valve to check whether the gauge pressure is within the normal range. Then according to the process requirements, use the cooling water inlet valve to adjust the flow of cooling water to achieve the ideal cooling effect. In use, the temperature difference (5 degrees) should be controlled according to the characteristics of the cooling water to prevent scaling of the graphite heat exchanger.

If the cooling water of the graphite heat exchanger is lower than 0 degrees, the other medium range of the heat exchanger should be isolated from the outside world to prevent the water in the inhaled air from freezing. When long-term parking is required, please use nitrogen or compressed air to press out the cooling water in the tube heat exchanger to prevent capacity expansion. Or close the cooling water inlet and outlet valves, and open the exhaust port to prevent volume expansion. If the graphite heat exchanger equipment is used for liquid-liquid exchange, the other end of the liquid medium should be pressed at the same time, and the heat exchanger and the heat exchanger should be well prepared at the same time.

External isolation and other anti-corrosion work. If the heat exchange effect of the graphite heat exchanger equipment is not good, please open the exhaust port to remove the non-condensable gas before use or cleaning. After use, please close the cooling water inlet valve, clean the graphite heat exchanger equipment and system in time, and keep it clean.

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