One is the particularity of heat exchange area and physical properties, which has been one of the key issues for equipment manufacturers for many years. Due to the existence of the thermal expansion coefficient, under the action of temperature stress, the bonding seam is the obvious difference between the adhesive and the impregnated graphite, which is easy to damage, resulting in leakage.

The second is good corrosion resistance. In the chemical, pharmaceutical and other industries, there is a process of evaporating and concentrating the material liquid. In addition to the common medium, carbon steel, stainless steel or titanium can be used to process the evaporator when there is no corrosion or less corrosiveness, and in the presence of hydrochloric acid Generally, metal equipment including titanium is not suitable, unless precious metals such as tantalum, platinum, gold, silver and nickel-molybdenum alloys are used for processing, graphite heat exchangers are generally selected.

The third is the low maintenance cost, and the actual working conditions in the strong acid environment, such as hydrochloric acid evaporation concentration, sulfuric acid evaporation concentration and phosphoric acid evaporation concentration, these three, if the evaporation temperature is above 100 degrees Celsius, if the traditional heat exchanger is used, it will be entangled in leakage , It is serious or even the whole equipment is scrapped. Therefore, the graphite heat exchanger brand manufacturers adopt the double-headed tube plate and the graphite heat exchange tube with elastic sealing connection type. The above problem can be solved because it adopts a single tube in structure. The packing type seals each graphite tube independently, and the operating temperature can reach above 150 degrees Celsius. It is worth mentioning that when the graphite heat exchanger is used as the graphite evaporator, when the temperature is lower than 80 degrees Celsius, the YKA type round hole heat exchanger and the GH type floating head tube heat exchanger can be selected.