In a typical process, liquids are cooled at the interface of a liquid and air stream. The hot air blown over the material replaces this lost heat. Because air is a poor conductor of heat, the process can be sped up by raising the air temperature. However, this is not always feasible due to the heat sensitivity of the parts. Consequently, in many cases, this process must be done by using a different method.
The piping and fins in an air dryer are typically made of stainless steel. These materials are highly corrosive, so they should be used in applications where hygiene standards are critical. The process also helps to prevent fogging after the mixture passes through the outlet. An adjustable damper (D9) controls the flow of diluent air into the mixing zone (5). Finally, the intermediate heat transfer fluid flows through a loop (15), leaving the air dryer and entering the re-circulating pump.
For high-hygiene standards and aggressive media, stainless steel air dryers are the perfect solution. Laser-finned stainless steel tubes have a seamless joint between the tube and fin, which enables a longer service life and improved durability. In addition, laser finned tubes also have a higher degree of precision, ensuring a higher level of consistency and a higher quality. Once the process has completed, the intermediate heat transfer fluid is circulated back through the after-cooler, which in turn enters the re-circulating pump (10).
Stainless steel air dryers are a great choice for applications with high hygiene standards and aggressive media. The stainless steel construction makes these air dryers a reliable choice for demanding industrial applications. The laser-finned tubes also provide better durability than standard stainless steel ones. The resulting heat exchange surface is made up of elliptical or round finned tubes. Whether the process is for food, textiles, or anything in between, you will be amazed by the results of the process.
A membrane-type air dryer is a gas-separation device that consists of a series of tiny tubes that allow water vapor to pass through. These devices act like human lungs, filtering air. Throughout the process, the water vapor is continuously vented into the atmosphere, leaving the dried air behind. Once the cycle is complete, the heat transfer fluid is returned to the outside atmosphere. The resulting dried air is routed through a sweep chamber.
Stainless steel air dryers have the most advantages. The stainless steel components have a low pressure drop and are ideal for aggressive media. Unlike copper, stainless steel has no flammable or corrosive properties and is a good choice for air dryers. The efficiency of these heat exchangers depends on the design and the type of finned tubes. For example, the CFX heat exchanger uses multiple-path air-flow pattern to minimize pressure drop.
