What are the core structural features of HVAC plate heat exchangers?

A: The core is used for centralized heating, central air conditioning systems and domestic hot water supply: In centralized heating, it serves as the heat exchange core of the "primary network - secondary network", converting municipal high-temperature heat into safe heating water for users;In central air conditioning systems, it serves as an evaporator to cool chilled water in summer and as a heat exchanger to transfer heat in winter; it can also be used for heating domestic hot water in hotels, hospitals, and residential communities to meet stable water supply demands during peak periods.

A: Widely covers industrial and special scenarios: In the industrial field, it is used for process heating/cooling (such as chemical reaction cooling and metallurgical process cooling); in the new energy field, it is suitable for geothermal utilization and seawater desalination systems; in addition, it is also used in marine air conditioning, pharmaceutical process temperature control, food and beverage sterilization cooling and other scenarios, and is suitable for various heat exchange needs such as liquid-liquid and liquid-vapor.

Plate heat exchangers are commonly used in residential wall-hung boilers. These plates quickly transfer the heat from gas combustion to domestic water, heating the water 30% faster than coaxial boilers. They are also less prone to scaling, extending the equipment's lifespan and ensuring stable hot water temperature. IV. Product Function-Related FAQs

A: Heat transfer is achieved through a dual process of "heat conduction + convection heat transfer": the high-temperature fluid and the low-temperature fluid flow in independent channels on both sides of the plate, and the heat is conducted through the highly thermally conductive metal plate. At the same time, the corrugated channels enhance fluid turbulence and improve the efficiency of convection heat transfer, ultimately achieving efficient heat exchange between the hot and cold fluids without mixing them.​

A: With the intelligent control system, multiple functions can be achieved: temperature regulation (automatically adapting the heating temperature to the ambient temperature), pressure stabilization (automatic water replenishment and pressure stabilization, overpressure relief protection), and flow control (ensuring circulating flow through a differential pressure bypass valve). Some units also support remote monitoring, timed start-up and shutdown, and power failure protection functions to ensure safe and reliable operation.

A: In terms of energy saving, the heat recovery rate is over 90%, enabling deep recovery of waste heat and reducing system energy consumption. Regarding safety, it features over-temperature protection (automatic valve closure when primary side temperature exceeds 180℃), pressure loss protection (shutdown when secondary side pressure is too low), and liquid level protection (low water tank level alarm). Simultaneously, the sealed structure prevents fluid leakage and isolates different media to avoid the risk of mixing.