Heat exchanger unit is a device that can achieve thermal energy conversion by transferring heat between two media, and is widely used in various industrial production and air conditioning systems. There are many types of heat exchangers, which can be divided into several categories according to their structure and working principle:
Shell-and-tube heat exchangers, consisting of a shell, tube bundle, and tube plates, etc., with the internal tube bundle connected to the fluid system through inlet and outlet pipes, achieve heat transfer. They are characterized by high heat transfer efficiency, long service life, and are widely used in chemical, petrochemical, food, and other industries.
Plate heat exchangers, consisting of a series of plates arranged parallel to each other, with gaps between the plates for fluid flow. Plate heat exchangers have high thermal efficiency, small volume and light weight, suitable for high viscosity and scale-prone fluids, and are widely used in food, pharmaceutical, chemical and other industries.
Tube heat exchangers, consisting of a group of tubes, can be vertical or horizontal, and heat transfer is achieved through the transfer of heat between the tubes and the fluid. The structure is simple and easy to construct, and it is suitable for industries such as food and beverage to heat or cool liquids.
Spiral plate heat exchanger, consisting of a spiral tube formed by spiral plate pieces and flanges at both ends. The structure is compact, maintenance is convenient, and it is widely used in chemical, petrochemical and other fields.
In addition, multiple heat exchangers can be combined into different types of heat exchanger group units according to the actual application requirements, which are suitable for various complex process requirements. For example, steam heat exchanger group units, which use steam to transfer heat to another fluid through a heat exchanger, are often used in power plants and other fields. Refrigeration group units, which use refrigerants to transfer heat from a low-temperature area to a high-temperature area through a heat exchanger, are widely used in food, pharmaceutical, chemical, cold storage and other fields.