How Many Types of Heat Exchangers Do You Know?

Heat exchangers are widely used in various fields of industry and agriculture, and heat transfer equipment can be found everywhere in daily life, and is one of the indispensable process equipment. In recent years, domestic energy saving, efficiency, and other aspects of improving the performance of heat exchangers, improving heat transfer efficiency, reducing the heat transfer area, reducing the pressure drop, improving the thermal strength of the device, and other aspects of the research has made significant achievements, and with the large-scale industrial devices and high efficiency, heat exchangers also tend to be large, and to low-temperature difference design and low-pressure loss design direction. Below we introduce several common heat exchangers.

Here is the content list:

• Welded plate heat exchanger

• Spiral Folded Plate Heat Exchanger

• New twist tube heat exchanger

Welded plate heat exchanger

Welded structure instead of a rubber gasket seal, fully welded plate heat exchanger, and semi-welded plate heat exchanger emerged, eliminating the limitations of temperature, corrosion, and pressure resistance due to gasket materials. The use of corrosive media plate heat exchangers, in recent years, has been greatly developed. Currently, on the market, fully welded plate heat exchangers can be used for gas-gas, gas-liquid, liquid-liquid heat transfer, and vapor condensation.

Spiral Folded Plate Heat Exchanger

The spiral folded plate heat exchanger is the latest development of a shell and tube heat exchanger, proposed by the United States. In the tube heat exchanger, the shell process is usually a weak link. The United States has proposed a new solution, using a spiral folded plate. The basic principle is the circular cross-section of the special plate installed in the "proposed spiral folding system", each folding plate accounts for the heat exchanger shell process in the cross-section of 1/4, its inclination toward the axis of the heat exchanger, that is, with the heat exchanger axis to maintain a certain degree of inclination. In addition, the spiral folded plate structure can meet a wide range of process conditions, design has a great deal of flexibility, for a variety of special process conditions to choose the best spiral angle.

New twist tube heat exchanger

A flat tube heat exchanger, commonly referred to as a twist tube heat exchanger, is also now available on the market. The manufacturing process for spiral flat tubes consists of two processes: "flattening" and "heat twisting". The improved twist tube heat exchanger is as simple as the traditional shell and tube heat exchanger, but with improved heat transfer, reduced fouling, true counterflow, reduced cost, no vibration, space-saving, and no bending elements. The unique tube structure allows for simultaneous spiral motion of the tube and shell processes, which promotes a degree of turbulence. The total heat transfer coefficient of this heat exchanger is 40% higher than that of conventional heat exchangers, while the pressure drop is almost equal. This new heat exchanger is estimated to have a broad application prospect in the chemical and petrochemical industries.

As the application of heat exchangers becomes more and more widespread, it is also easy to see the use of heat exchangers in our daily life. The above is the introduction of several new heat exchangers, of which welded plate heat exchanger is the mainstream of the current market, more and more companies, and enterprises choose to use welded plate heat exchangers.