Advantages of Tubular Heat Exchangers
Within the different geometries of heat exchangers present in the market, as plate and gaskets, welded plates, spiral or scraped surface heat exchangers, among others, the tubular type is one of the most traditionally used.
Since there is almost no need for spare parts (it is a completely welded construction).
HIGH WORKING PRESSURE
As there are no gaskets and the heat exchangers are completely welded, the design pressure can be over 100 barg. With regard to the mechanical calculations, we can check them according to different design codes (ASME Section VIII Div.1, AD Merkblätter, 2014/68/UE), even using Finite Elements Analysis if required.
HIGH WORKING TEMPERATURES
Due to the fact that a tubular heat exchager is a completely welded construction and because of the absence of gaskets, there are no problems for high operation temperatures, as it occurs with other configurations (i.e. plates and gaskets heat exchangers).
PROCESSING OF PARTICULATE OR FIBRE PRODUCTS
Being the diameter of the inner tubes determined by the percentage, shape and size of the solids. Within the SACOME range of products, we have our monotubular heat exchanger S-TF20-I (Tube in Tube) being the most suitable tubular heat exchanger geometry for products containing big-sized particles.
In order to get a better access to the tube sheet and the inner tubes, we can consider flanged tube sheet designs as well as connections (flanges, clamps, DIN11851) in all the interconnections/bends between the modules.
HIGH SECURITY IN ASEPTIC PROCESSES
Tubular Heat Exchangers can be designed and manufactured with special geometries for pharma applications, as double tube sheet, that ensure that cross contamination doesn’t appear in the case of a leakage of a tube-to-tubesheet joint.
EASY TO ENLARGE
Due to its modular design. It is relatively simple to add some modules in series with the aim to increase the thermal duty and the temperature difference. Likewise, in case of being necessary to increase the process flowrate, some lines in parallel can be arranged by means of manifolds that split the product or service flow.