How to classify stainless steel heat exchangers according to their heat transfer methods

A heat exchanger is a device that transfers a portion of heat from a hot fluid to a cold fluid, that is, water or other medium is filled in a large closed container, and the pipeline passes through the container. Let hot water flow through the pipe.
Due to the temperature difference between the hot water in the pipeline and the cold and hot water in the container, heat exchange occurs, which is the physical heat balance in junior high school. The heat from high-temperature objects is always transferred to low-temperature objects, thereby transferring the heat from the water in the pipeline to the cold water in the container. A heat exchanger is also known as a heat exchanger.
The following mainly introduces stainless steel heat exchangers classified by heat transfer method:
1) Direct contact heat exchanger
Direct contact heat exchangers rely on direct contact between cold and hot fluids for heat transfer. This heat transfer method avoids the fouling and thermal resistance of the heat transfer baffle and its sides. As long as there is good contact between fluids, there will be a large heat transfer rate.
Therefore, as long as the fluids are allowed to mix with each other, hybrid heat exchangers can be used, such as gas washing and cooling, circulating water cooling, steam water mixing heating, steam condensation, etc. Widely used in many production departments such as chemical and metallurgical enterprises, power engineering, air conditioning engineering, etc.
Commonly used mixed heat exchangers include cooling towers, gas scrubbers, jet heat exchangers, and mixed condensers.
2 regenerative heat exchanger
A regenerative heat exchanger is a type of regenerative heat exchange device. Built in solid filling material for storing heat.
Generally speaking, fireproof grids are made of refractory bricks (sometimes metal corrugated strips, etc.)
3) Wall type heat exchanger
In this type of heat exchanger, the cold and hot fluids are separated by metals, so these two fluids do not mix and transfer heat.
In chemical production, cold and hot fluids often cannot be in direct contact, so baffle heat exchangers are commonly used.