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GA-HFB Refrigerated Air Dryer - Reliable Dry Compressed Air from China Suppliers and Factory
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GA-HFB Refrigerated Air Dryer - Reliable Dry Compressed Air from China Suppliers and Factory

The refrigerating dryer is designed to utilize the low temperature of the evaporator in the refrigeration system to effectively lower the temperature of compressed air. This process condenses moisture, providing a dry source of compressed air. However, it is important to note that simply cooling the compressed air does not guarantee the expulsion of all water, as the rapid flow of compressed air can carry away a significant amount of condensed water from the refrigerated dryer. This can lead to excessive water content at the service end. As a leading manufacturer in China, we pride ourselves on producing high-quality refrigerated dryers that ensure optimal performance. Our factory is committed to supplying businesses with reliable solutions for achieving dry compressed air efficiently.

    Functional Characteristics

    The refrigerating dryer uses the low temperature of the evaporator of the refrigerating system,let's lower the temperature of the compressed air,and then condense the water out,to obtain a dry compressed air source; but cooling the compressed air doesn't necessarily mean the water will be expelled,because a lot of condensed water will be taken away from the refrigerated dryer due to the rapid flow of compressed air, resulting in the phenomenon of excessive water content at the service end;

    GA series air-cooled refrigerating dryer is a new machine developed to solve this problem.the main feature is that the horizontal evaporator is designed with an upright differential configuration.at the bottom of the evaporator is equipped with a refrigerant high-pressure secondary condensation device,this careful design not only makes the cooling system load more stable,the principle of gravity is also used to make the condensed water more difficult to be carried away from the evaporator by the fast-moving compressed air due to the relationship between gravity, so that the condensed water can be completely discharged.

    Correct method of selecting a cold dryer

    Under different working conditions, the air volume of all kinds of cold drying machines will be different. To choose a suitable cold drying machine, five factors must be considered:

    1 Flow rate of compressed air
    2 Pressure
    3 Inlet temperature
    4 Ambient temperature
    5 Required pressure dew point
    Selection Example

    Input Parameters: The nameplate of the air compressor indicates that the exhaust volume is 5.2m³/min, the exhaust pressure is 0.8MPa, the maximum exhaust temperature is 50℃, the ambient temperature of the machine room is 38℃, and the target pressure dew point is 10℃.

    Processing Capacity Calculation
    5.2 Nm³/min ÷ 0.75 ÷ 1.12 ÷ 1.0 = 6.2 Nm³/min

    Recommended Model: The cold-drying model to be selected is GA-50HFB.

    Frequently Asked Questions
    How does a refrigerating dryer produce dry compressed air?
    It utilizes the low temperature within the refrigeration system's evaporator to lower the temperature of the incoming compressed air. This cooling process condenses the moisture out of the air, allowing it to be separated and resulting in a dry compressed air source.
    Why do standard refrigerated dryers sometimes output excessive water?
    Simply cooling the compressed air is not always enough to expel all moisture. Due to the rapid flow of compressed air, a significant amount of condensed water can get carried along with the air stream out of the dryer, leading to high water content at the service end.
    How does the GA series dryer prevent condensed water from being carried away?
    The GA series features an upright differential configuration for its horizontal evaporator and integrates a refrigerant high-pressure secondary condensation device at the bottom. This design utilizes the principle of gravity to prevent the fast-moving air stream from carrying the condensed water away, ensuring complete drainage.
    What five factors must be considered when selecting a cold dryer?
    To choose the correct cold dryer model for your specific working conditions, you must evaluate: the flow rate of the compressed air, the working pressure, the inlet air temperature, the ambient room temperature, and your target pressure dew point.
    How do you calculate the required processing capacity for a cold dryer?
    The required processing capacity is calculated by taking the air compressor's exhaust volume and dividing it by the correction factors associated with your specific operating conditions (such as pressure, temperature, and ambient factors). For example: Exhaust Volume ÷ Factor A ÷ Factor B ÷ Factor C.