Imagine trying to win a NASCAR race using a car equipped with bicycle tires. Impossible, right? That’s why having the right air dryer machinery for a specific application can make or break your business. Without the correct tools for your operation, you’re left trying to race around the track with wheels that simply don’t work. But how do you know which system is right for your needs? And how do all of these different filtration systems even work?
The Significance of Air Drying
When selecting an air dryer for industrial purposes, one thing to keep in mind is your desired level of dryness. Air dryer systems are critical to creating quality compressed air for industrial uses. These systems remove moisture and other contaminants from compressed air, which benefits industrial applications in a variety of different ways, including:
- Protecting pneumatic tools and equipment: Many industrial applications rely on air dryers to remove water and other impurities from compressed air used to power pneumatic tools. Without air dryers, the presence of water and various contaminants can lead to corrosion, rust, and other damage, resulting in machinery or tools that are unable to operate properly. Clean air prevents these issues, saving business owners a headache and extending the overall life of their tools and equipment.
- Improving product quality: Some industrial sectors rely on clean compressed air to ensure the health and safety of their customers. The food and beverage and pharmaceutical industries need to ensure the air used in their production lines is completely contaminant-free; otherwise, they risk the health of their customers. Additionally, applications within the painting and coating industry must maintain proper clean air production or face issues with end-of-the-line product quality.
Types of Air Dryer Systems
There are multiple types of dryer systems available for purchase on the market today. As technology advances, different types of air dryers are produced and become popular in various industrial sectors. Within the current market, three primary air dryer systems have become popular among industrial businesses: refrigeration, adsorption, and membrane filtration. Each has its own benefits and drawbacks, and business owners should research each type appropriately before selecting one for their specific application. Selecting the right air dryer filtration system for your needs can help ensure your business runs efficiently and your products meet your customers’ quality expectations.
Refrigeration
We all rely on refrigeration in our day-to-day lives; it keeps our food at home cold and allows us to pick up a cold drink from the convenience store. But refrigeration actually does more than just reduce the temperature – it also removes moisture from the air. Refrigerated air dryers work by taking advantage of this fact. As warm air enters the dryer, it is cooled to a temperature where moisture begins to condense. This condensate is then separated from the surrounding air before the now-clean air is reheated before being used. Refrigerated air dryers can work as independent free-standing systems or may be integrated into compressors, and are beneficial as they reduce the amount of power consumed by the air compressor itself. They are ideal for a variety of different industries, including automotive, food and beverage, pharmaceutical, and a variety of other types of manufacturing.
Adsorption
Adsorption air dryers are also commonly known as desiccant air dryers. These systems operate by passing air through a desiccant material, which removes moisture from the air that is being passed through the filter. There are a number of different types of desiccant that may be used in a system with an adsorption filter, though the most common include silica gel or activated alumina. The majority of adsorption air dryers use desiccants that can be regenerated by using either dried air or heat, allowing the desiccant to be reused multiple times to pull moisture from compressed air before needing to be replaced. This regeneration is usually done using a dual-tower system, where one tower is responsible for air drying purposes while the other is regenerated. Once the regeneration process is complete, the towers switch jobs. Adsorption air dryers are able to achieve high levels of moisture removal. These versatile machines are used in a wide variety of industries, including gas, power generation, pharmaceuticals, and food and beverage sectors.
Membrane Filtration
The answer to how membrane filters work is right in the name – selectively permeable membranes are used to pass air through, where dry air is allowed to then continue through the system while whatever water vapor was present in the air is held back. Most membrane filters use a bundle of small hollow fibers. Air passes through the hollow parts of the fibers while water vapor particles are too large to pass through, removing the water vapor from the surrounding air. When the filters are full of water vapor, they are then purged using air to remove the water vapor particles from the filter. Membrane dryers are known for their low maintenance and compact design and are often found in manufacturing and construction industries.
ESA – For All Your Dryer System Needs
Still not sure which type of industrial air dryer system is right for you? Thinking about changing your current filtration system for another that may be better suited for your needs? ESA can help! With a wealth of experience and a dedication to customer satisfaction, there’s no situation our trained technicians haven’t encountered. Our knowledge spans decades, allowing us to help our clients make the best decisions for their applications while helping them save money. And best of all, we’re available 24/7. If you have any questions or concerns about your air dryer or the filtration system you use, call ESA today for answers!