How Do You Select And Size The Air Dryer For Air Compressor

El secador de compresor de aire es un elemento esencial de los sistemas de aire comprimido. Inevitablemente, habrá humedad durante el funcionamiento del compresor de aire. It can contaminate the end product and damage our production equipment and components. This is why it must remove this moisture in the compressor system. Compressed air dryers are the devices that help dry the wet air. Esto garantiza la calidad de su aire comprimido. pero para ti, what is the best air dryer for air compressors? Y como seleccionarlos?

Whether you are an engineer, technician, or manufacturer, this article will provide in-depth insights and guidance on this critical topic. Let’s choose the right drying solution for your air compression system.

How Do You Select The Air Dryer For Air Compressor

It must know the following parameters to choose the right compressed air dryer. Let’s talk about it.

Capacidad de aire

The air compressor dryer can handle this maximum flow of compressed air. En primer lugar, the user needs to determine this value based on the consumption of all air-consuming equipment and the usage factor. Por supuesto, si ya tienes un compresor de aire, you can send the nameplate to the manufacturer.

As a professional air compressor dryer manufacturer, te lo contamos con responsabilidad. Si usas mucho aire, choose a compressed air dryer with a larger capacity. Eso es, la capacidad de aire de la secadora debe ser mayor que la del compresor de aire. Porque en épocas de alta temperatura y humedad, el contenido de agua del aire aumenta. En este momento, the dryer machine is overloaded. Entonces, the drying effect will decrease. Esto puede causar muchos problemas, tales como grandes cantidades de humedad y averías en el equipo.

Inlet Air Pressure

Different air pressures and different air capacities of the dryer. Las presiones comunes en la producción industrial van desde 0.6MPa a 1.0MPa. Entonces, the most common is the normal pressure air compressor air dryer.

Sin embargo, otras industrias tienen diferentes requisitos de presión. Por ejemplo, la industria del láser generalmente requiere 16 bars. Some industries require high-pressure compressed air dryers. Nuestra empresa puede personalizar secadores hasta 100 bar.

Inlet Air Temperature And Ambient Temperature

La temperatura es fundamental para la elección del secador con compresor de aire. Por ejemplo, hay dos tipos de secadores de aire refrigerados. Namely normal temperature (50ºC) and high temperature (80ºC). The temperature is very high in Pakistan and the Middle East in summer. Primero, it must choose a high-temperature type of refrigerant dryer. Además, a menudo tenemos que elegir un modelo más grande. This not only achieves good water removal but also avoids dryer downtime.

Por otro lado, la temperatura del aire de entrada del secador de aire desecante generalmente no debe ser superior a 40°C. If the temperature is too high, el efecto de eliminación de agua del adsorbente se reducirá en gran medida. Por supuesto, it can choose the HOC type desiccant dryer now.

Dew Point Requirement of Air Compressor Dryer

Different dew point requirements and different equipment configurations. Naturalmente, the price is different. Los secadores refrigerados generalmente tienen un punto de rocío a presión de 2 a 10°C. There are different conditions and different dew points. Por ejemplo, refrigerant compressed air dryers can achieve a very low dew point. Pero requiere una condición de operación estándar de 25°C y 7 bar.
Diferentes industrias tienen diferentes requisitos para los puntos de rocío.. Los siguientes son algunos ejemplos.

  1. Industria farmacéutica: el punto de rocío es de al menos -40°C.
  2. industria de PCB: el punto de rocío debe alcanzar -20°C.
  3. Industria de separación de aire y gas: el punto de rocío debe ser -70°C.

Choose a combination dryer if you require a dew point of -70°C. O debe haber un secador frigorífico y filtros antes del secador de aire por adsorción.

Voltage And Frequency

Varía de un país a otro. Por ejemplo, en Norte América, 220V/60HZ/monofásico y 380V/60HZ/trifásico son comunes. En este momento, necesita personalizar el compresor de refrigerante. A veces, el precio de la tintorería también será diferente..

Raw Materials

Some industries have requirements for the material of air compressor dryers. Por ejemplo, the pharmaceutical industry requires stainless steel. En este caso, el sistema de tuberías e intercambio de calor debe ser SS304. Y la torre de adsorción también necesita SS304. Además, la industria de las baterías de litio también requiere acero inoxidable.

La secadora de acero inoxidable será más cara.. Por supuesto, you can choose the Lingyu PD series refrigerated air dryer. You can also choose the modular desiccant compressed air dryer. También pueden cumplir con los requisitos de las industrias alimentaria y farmacéutica..

Environmental Requirements

El refrigerante habitual de los secadores de aire frigoríficos es el R22. Es común en los países en desarrollo.. Sin embargo, Los países europeos y americanos exigen refrigerantes ecológicos. Para nosotros, R134a, R407C, R410a están disponibles. The dryer is a little more expensive if you want an eco-friendly refrigerant.

Air Cooled vs. Water Cooled Refrigerated Compressor Air Dryer

El secador de aire refrigerante de flujo pequeño se enfría con aire. Nuestro secador enfriado por aire puede ser de hasta 120 m³/min. si arriba 120 m³/min, the air compressor air dryer is water-cooled.

For high-flow dryers, the size will be very large if you need an air-cooled type. Por ejemplo, será tan alto como varios pisos. Y la eficiencia del intercambio de calor será mucho peor.. The water-cooled dryer is not affected by a high-temperature environment. Por supuesto, there needs to be a cooling water system. Entonces esto agregará un costo.

Energy Saving Requirements

① Fixed vs. Variable Frequency Refrigerated Air Dryer

We commonly use fixed-frequency air compressor dryers. Puede cumplir con la salida máxima. Sin embargo, in actual production activities, la demanda de aire varía. En pequeñas demandas, todavía funciona a la máxima potencia. Esto conduce a un desperdicio de energía.. De lo contrario, the output of the variable frequency dryer can match the air demand. Esto da como resultado un ahorro significativo en costos de energía y operación..

② Choice of Desiccant Dryer Regeneration Method

The heatless compressed air dryer has a small power of ~0.1 kW. But it has a big air consumption of about 15%. Este es un alto consumo de energía.. El secador desecante microcalentado generalmente consume alrededor de 8% de aire de regeneración. En comparación con la secadora sin calor, puede salvar 40% de energía.
El secador de adsorción de pérdida de aire cero consume 0% aire de regeneración. A heatless air compressor air dryer can save 70% de energía. Por supuesto, it is more expensive.

Air Dryer For Air Compressor

How to Size The Air Dryer For Air Compressor?

Sizing an air dryer for air compressor involves determining the appropriate capacity and specifications of the dryer. So it can remove moisture and contaminants from the compressed air effectively. The sizing process ensures that the air dryer can handle the air volume and achieve the desired dew point, maintaining the compressed air quality.

Here are the steps to size an air compressor air dryer.

Determine Compressed Air Flow Rate (CFM)

Measure or calculate the maximum compressed air flow rate that your air compressor system requires. This is usually expressed in cubic feet per minute (CFM). It is a crucial parameter for sizing the air dryer.

Calculate Inlet Air Temperature And Pressure

Determine the temperature and pressure of the compressed air at the dryer’s inlet. This information is necessary to calculate the corrected flow rate and dew point.

Consider Ambient Conditions

Account for variations in ambient temperature and humidity, as these can affect the performance of the air dryer. Understanding the environmental conditions helps in selecting the appropriate dryer type and specifications.

Determine Required Dew Point

Define the desired dew point or moisture level for your application. The dew point is the temperature at which air becomes saturated with moisture and starts to condense. Choosing a dew point suitable for the application is crucial to prevent potential issues.

Select The Right Type of Compressed Air Dryer

Choose the appropriate type of air dryer based on the required dew point and application. Common types include refrigerated dryers, desiccant dryers, and membrane dryers. Each type has specific advantages and is suitable for different dew point requirements.

Calculate The Corrected Flow Rate

Adjust the compressed air flow rate for the actual conditions using the information gathered earlier. Correcting for temperature and pressure ensures that the air dryer is sized accurately.

Consult Manufacturer Specifications

Refer to the manufacturer’s specifications and performance data for the selected air dryer type. So it can verify that it can handle the corrected flow rate and achieve the desired dew point.

Account For Safety Factors

Consider adding a safety factor to ensure the air dryer can handle variations in air demand and operating conditions, providing a buffer for unexpected fluctuations.

Choose The Appropriate Air Dryer Size

Based on the corrected flow rate, dew point requirements, safety factors, and manufacturer specifications, select the suitable size and model of the air dryer that meets the system’s needs.

Installation And Monitoring

Install the chosen air dryer correctly within the compressed air system. Regularly monitor its performance and maintain it according to the manufacturer’s recommendations to ensure optimal efficiency and reliability.

secador de aire comprimido

Conclusión

In modern industry, compressed air dryers are an indispensable tool. They provide continuous and stable high-pressure air for a variety of applications. Sin embargo, to ensure reliable operation and extend the compressor’s life, air quality management becomes critical. Selecting and sizing the right compressor air dryer is one of the important steps in ensuring good operation.

By following these steps and considering the specific requirements of your air compressor dryer system, you can accurately size an air dryer to maintain the desired air quality and enhance the overall efficiency of the compressed air dryer system.