Externally Heated Purge Desiccant Air Compressor Dryer
Rated Pressure: 0.4-1.0 MPa
Air Flow Volume: 1.2-160 Nm³/min
Pressure Dew Point: -70—-20℃
● The externally heated purge desiccant air compressor dryer boasts various features that ensure safety, reliability, and optimal performance.
● An automatic control system and alarm device are included for added assurance.
● Additionally, an air controlling dust filter helps the heated air dryer prevent dust buildup on components, ultimately decreasing the rate of valve failure.
● The newly designed silencer is crafted from heat-resistant hyperfine sound-absorbing glass ,the noise levels≤ 72dB (A).
● The stainless steel disperser stabilizes, disperses, and filters the air flow while the high-quality desiccant – made of activated aluminum or molecular sieve – promises a long service life.
| project \Model | Air Capacity (Nm³/min) | Motor Power (kW) | Air takeover caliber | Dimension（L） (mm) | Dimension（w） (mm) | Dimension（H） (mm) | Weight (kg) |
|---|---|---|---|---|---|---|---|
| NX-1WXF | 1.2 | 1.5 | ZG1 | 800 | 480 | 1420 | 145 |
| NX-2WXF | 2.4 | 1.5 | ZG1 | 800 | 480 | 1520 | 200 |
| NX-3WXF | 3.8 | 1.5 | ZG1.5 | 1000 | 525 | 1600 | 330 |
| NX-5WXF | 5.5 | 1.5 | ZG1.5 | 1000 | 525 | 1890 | 350 |
| NX-6WXF | 6.5 | 3 | ZG1.5 | 1200 | 550 | 1950 | 430 |
| NX-8WXF | 8.5 | 3 | ZG1.5 | 1400 | 600 | 2000 | 550 |
| NX-10WXF | 10.7 | 4.5 | ZG2 | 1400 | 600 | 2090 | 750 |
| NX-13WXF | 13.5 | 4.5 | ZG2 | 1400 | 600 | 2140 | 790 |
| NX-15WXF | 18 | 4.5 | DN65 | 1400 | 650 | 2200 | 830 |
| NX-20WXF | 25 | 6 | DN80 | 1670 | 725 | 2435 | 1250 |
| NX-30WXF | 35 | 8 | DN100 | 1670 | 725 | 2566 | 1480 |
| NX-40WXF | 45 | 8 | DN100 | 1750 | 775 | 2700 | 1740 |
| NX-50WXF | 55 | 15 | DN125 | 1800 | 775 | 2755 | 2260 |
| NX-60WXF | 65 | 15 | DN125 | 1900 | 800 | 3070 | 2600 |
| NX-80WXF | 85 | 20 | DN150 | 2620 | 1120 | 3073 | 3380 |
| NX- 100WXF | 110 | 30 | DN150 | 3100 | 1650 | 3200 | 4390 |
| NX-160WXF | 160 | 50 | DN200 | 3240 | 1770 | 3190 | 5800 |
- Share your requirements for expert evaluation (multilingual support).
- Get customized solution, including IP level, air end and parts, screen language, remote control, appearance, voltage and temperature adaptation, etc.
- Production started after order confirmation (standard production time: 20-25 days).
- Rigorous quality testing before shipping.
- Lifelong technical support, original maintenance parts support, and up to 10-year warranty on the air end.
Frequently Asked Questions
A compressed air externally heated purge desiccant air compressor dryer is a type of compressed air drying equipment that utilizes an adsorbent to remove moisture from the air at room temperature. Its main characteristic is that it can achieve a lower dew point and lower water content in compressed air compared to other types of dryers, but it also consumes more energy due to the use of a micro-heat adsorption process.
For example, single-stage compression screw machine rotor: the pressure at the inlet end is about 1 bar of atmospheric pressure, compressed by the rotor to an outlet pressure of 8 bar, the compression ratio of the compression process is 8/1, that is, the single-stage compressor compression ratio of 8. While the pressure at the inlet end of the dual-stage is about 1 bar of atmospheric pressure, compressed by the first-stage rotor to an outlet pressure of about 3 bar, and then into the second-stage rotor compression to enhance the pressure to the required 8 bar The compression ratio of the first stage low pressure rotor is about 3, and the compression ratio of the second stage high pressure rotor is 8/3 ≈ 2.67, i.e. the compression ratio of the second stage is about 2.67. The maximum compression ratio of the two-stage compression rotor system is about 3.
The role of the muffler in the Externally Heated Purge Desiccant Air Compressor Dryer is to reduce the noise generated by the discharge of the regeneration gas. As the regeneration exhaust is released under pressure and at a high velocity, it can cause gas vibrations and produce strong exhaust noise, which can reach 80-110dB. According to regulations, noise reduction measures must be taken when the exhaust noise exceeds 75dB. In the desiccant air compressor dryer, the regeneration exhaust contains a large amount of dust and water vapor, which can easily cause blockages in the muffler when condensation occurs at suitable temperatures. Therefore, the muffler is a vulnerable component in the desiccant air compressor dryer, working under harsh conditions.
Externally heated purge desiccant air compressor dryers can be classified into two main types based on the method of adsorbent regeneration: non-heated regeneration and heated regeneration. Non-heated regeneration dryers work on the principle of isothermal adsorption and are also known as “pressure swing adsorption” dryers. Heated regeneration dryers work on the principle of isobaric adsorption and are also known as “temperature swing adsorption” dryers. In addition, there is a type of dryer called a “micro-heat” dryer, which also regenerates the drying gas by heating it, but it uses dry air with low moisture content from itself as the regeneration gas, making it also a type of “pressure swing adsorption” dryer.
Next, check the oil level and look for any leaks or obstacles around the machine. If it’s a water-cooled machine, open the cooling water valve and pump, and confirm that the water pressure is normal. Finally, turn on the power and start the machine. If it has been idle for a while, start it a few times before running it continuously to avoid unnecessary malfunctions such as overheating or overload.
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