Application fields of plate heat exchangers

Refrigeration system: used for plate condenser and plate evaporator.

HVAC: Intermediate heat exchangers used in conjunction with boilers, high-rise building intermediate heat exchangers, etc.

Chemical industry: used for heating, cooling, evaporation concentration, condensation, etc. in processes such as soda ash industry, synthetic ammonia, and alcohol fermentation.

Solar energy utilization: Participate in the heat exchange process of heat transfer media such as ethylene glycol and antifreeze in solar collector panels.

Steel industry: cooling quenching oil, cooling electroplating solution, etc.

Food industry: sterilization and cooling of salt, dairy products, soy sauce, vinegar, heating and cooling of animal and vegetable oils, etc.

Textile industry: various waste liquid heat recovery, cooling of boiling phosphating fibers, etc.

Paper industry: Heating and cooling of cooling black water and bleaching saline alkali solution.

Central heating: Heating of waste heat areas in thermal power plants, heating of domestic water, etc.

Plate heat exchanger is an efficient, compact, and flexible heat exchange device that has been widely used in multiple fields. However, it is also necessary to pay attention to its drawbacks and take corresponding measures to prevent it during use. There are two main types of plate heat exchangers: frame type (detachable) and brazed type. There are three types of plate forms: herringbone corrugated plate, horizontal flat corrugated plate, and nodular plate. These different types of plate heat exchangers have their own characteristics and are suitable for different working conditions and media.

The working principle of plate heat exchangers mainly includes three processes: heat transfer, mass transfer, and resistance. Cold and hot fluids flow through both sides of the plate heat exchanger, with the hot fluid releasing heat on the hot side plate and the cold fluid absorbing heat on the cold side plate, thereby achieving heat transfer. Heat is mainly transferred through convection and conduction. In addition, plate heat exchangers can also achieve mass transfer processes by adding appropriate fillers or membranes to transfer substances between the fluids on both sides.

There are various types of heat exchangers in air dryers, including plate fin heat exchangers and shell and tube heat exchangers. Among them, plate fin heat exchangers are widely used due to their compact structure and high heat transfer efficiency. It usually consists of a core, a head, a connecting pipe, and a support, and the core is a key component for completing heat exchange.

The heat exchanger condenses moisture in humid air into liquid water through a heat exchange process, effectively removing moisture from the air. During the drying process, the heat exchanger can recover and utilize some of the thermal energy, improving the energy efficiency of the system. Prevent damage to downstream equipment caused by excessive moisture in the air, such as corrosion, condensation, and other issues. The air dryer heat exchanger is one of the key equipment in the air drying process, and its performance and quality directly affect the operating efficiency and product quality of the entire system. Therefore, sufficient attention and concern should be given in the selection and use process.