2024-03-11

What is the filtration product in the PSA nitrogen system?

The PSA nitrogen system is equipped with high-quality filtration products to ensure that only clean, dry air can enter and leave the system. In order to produce the purest nitrogen and maintain the highest efficiency, compressing the best air filters and desiccant dryers is essential to remove pollutants.

When choosing a compressed air filter and dryer for the system, choosing the correct pipe connection and flow rate is only the first of many considerations. Other factors (such as pressure drop, maintainability, and filter training capabilities) are essential and often overlooked. These characteristics and advantages can improve your nitrogen generation system.

Low pressure loss

The most critical factor to consider when selecting a filter product is pressure loss. Some compressed air filters have a pressure loss of 3.5 psi. At the same time, the pressure loss of the most efficient products on the market is less than 1.8 psi. But why is the difference in 1.7 psi so significant?

The pressure loss directly or indirectly affects almost every aspect of the nitrogen generation system. The most common effect is an increase in the operating energy consumption of the compressor. When the pressure loss through the system is higher, the compressor must work harder to produce more air, thereby consuming more energy.

For example, if an application requires 100 psi of air, and each filter loses 3.5 psi, the compressor must generate an additional 3.5 psi of pressure for each filter. If there are three filters in the system, the compressor must output 115 psi, not 100 psi. In contrast, if a compressed air product with a minimum pressure loss of 1.8 psi is used, the compressor only needs to output 110 psi.

Based on 100 SCFM systems operating 6,000 hours per year, the lower system pressure loss can save up to US $5,000 per year in electricity bills *.

By reducing the pressure loss, manufacturers can sometimes use smaller filters and dryers in their systems. Currently, many PSA nitrogen companies intentionally increase the size of their filtration products to compensate for the pressure loss. However, by doing so, they are increasing the system footprint.

Buying smaller, more energy-efficient filters and dryers will not only save you money, but also reduce the footprint of the system. Ultimately, this opens the door of opportunity for applications where footprint is critical.

Maintainability

The applicability characteristics of filtration products cannot be ignored. By choosing products that are ahead of the market in terms of service, the footprint of the system can be reduced, and the time and money of system maintenance can be saved.

Choosing a compressed air filter that does not use tie rods or bolts to fix the filter element can simplify and speed up the maintenance process. The service technician will be able to unscrew the filter bowl from the head and remove the filter element with limited clearance. This means that the drum and element clearances do not require significant calculations when designing a nitrogen generation system.

External drainage

Under normal circumstances, if the drain pipe needs to be replaced or repaired, the engineer or service technician must first remove the filter bowl, sometimes with a tie rod and bolt, and then reach into the oily basin to remove and replace the drain pipe. Having a drain filter with external access means the filter bowl does not need to be removed for maintenance or replacement of the drain.

Selecting filters that can be trained together creates a filtered stream, limiting the space required for the application. By ordering pre-assembled filtration products, you can even save time and labor costs.

In addition, custom service pack solutions are a great way to create unique pre-assembled packages that contain all serviceable parts so that your customers can quickly and easily replace them. The easier it is to maintain the product, the more likely it is for the customer to complete routine maintenance.

Connection size

Pipelines and application requirements change and evolve over time. Choosing filter suppliers with a wide range of connection sizes can flexibly adapt to future needs.

For example, the Walker filtration system provides three coalescing filters with different connection sizes, so it can provide sufficient energy for each nitrogen generation system. The alpha coalescing filter provides from 1/8 "11 connection size -3" PRO XF coalescing filter provides from 2 "range -3", 3 "and 4" flanges, and the assembled flange ASME coalescing filter range covers the application range of high flow 6 "-12.

Other factors to consider

Before determining which filtration product is most suitable for your PSA nitrogen system, please make sure that the supplier has passed ISO 8573-1:2010 certification and has a high-quality filter element structure to ensure the highest purity standards. In order to ensure clean and dry air, the filter structure must be able to remove various pollutants except dust and oil.

Walker Filtration provides world-class original filter elements as well as high-quality replacement filter elements to ensure the best performance of the system currently on site.

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