Heat exchanger is a key equipment for heat transfer in industrial production, widely used in fields such as petroleum, chemical, food, and pharmaceuticals. Its core function is to achieve process requirements such as heating, cooling, condensation, or evaporation through heat exchange between cold and hot fluids.
一、 Main Categories and Characteristics
1. According to the structural form
Shell and tube heat exchanger: With a simple structure and reliable operation, it is the most widely used type.
Plate heat exchanger: High heat transfer efficiency (up to 3 times that of tube type), but low pressure bearing capacity.
Spiral plate heat exchanger: compact in size, suitable for low flow conditions.
Jacket heat exchanger: simple structure, but limited heat transfer efficiency.
2. According to the process purpose
Including heaters, condensers, evaporators, reboiler, etc., for example, evaporators are mostly used for distillation and dehydration, while heat exchangers focus on temperature regulation
二、 Typical application scenarios
Chemical industry: Heating of reaction materials and evaporation of solvents.
Food processing: sterilization, drying, and equipment disinfection.
Energy sector: Power plant waste heat recovery, natural gas dehydration.
Environmental engineering: Heat recovery in industrial wastewater treatment.