What is a heat exchanger?
In order to successfully transfer heat between different fluids, a special device known as a heat exchanger is required. Its application is however not limited to only heat applications; it can also be used in cooling applications.
This is why there are different types of heat exchangers such as the plate heat exchanger, the shell and tube heat exchanger, the pillow plate heat exchanger, the fluid heat exchanger, waster heat recovery units, the Adiabatic wheel heat exchanger and the Regenerative heat exchanger. Their application will depend on the direction of liquid flow.
Why is Titanium used?
Titanium has a number of characteristics that make it the material of choice for most industrial applications. In terms of heat exchangers, its high corrosive resistance nature makes it the material of choice.
In addition, its incredible strength makes titanium a material of choice in the production of heat exchangers. This means that you don’t have to worry about the high temperatures or pressure buckling the device if well-constructed. .
Type of titanium used in the production of a titanium heat exchanger
There are 9 grades (1,2,3,4,7,11,12, 5, 23) of commercial titanium to choose from, with each grade being useful for a particular industry. For example, grade 1 titanium is great for industries such as the medical industry, chemical processing or architectural industry where high impact toughness is essential in addition to impeccable formability.
As for heat exchangers, grade 4 and grade 12 titanium may be used. Grade 4 titanium is pure titanium that is characterized by high corrosion resistance and strength. A titanium heat exchanger that makes use of grade 4 titanium will commonly be found in the medical industry.
Grade 12 titanium on the other hand is used in the manufacture of shell and heat exchangers. This is thanks to its high ability to be welded, complete with high durability and ability to go against high temperatures.