We are top manufacturer of VSD air dryer. Variable speed drive refrigerated air dryer system is enery saving. In addition, this compressed air cooler dryer is water-cooled type. It can adjust according to the actual air consumption. Through frequency converter, change the frequency of refrigerant dryer. So the dryer matches the actual working conditions.
Why choose variable speed drive refrigerant air dryer?
There is a fact: In many industrial production, the demand for compressed air is variable. But conventional air compressors have only one speed. That is, they run at full load. Sometimes these demands are less. Thus it will consume and waste a lot of energy.
Similarly, most refrigerated air dryer systems are inefficient to use. Besides, they consume a lot of electricity. So it does not meet the requirements of energy saving. Also greatly increases the cost of use. And the dryer is in the same amount of refrigeration state after opening. The cooling capacity can not be changed. That is, it’s not adjustable. Therefore, it greatly consumes electricity.
But the VSD air dryer adopts advanced technology. It can automatically change the speed of refrigerant compressor. Adapt to the refrigeration capacity demand under different load working conditions. So it can realize energy efficiency improvement.
The advantages of VSD refrigerant air dryer:
(1) Firstly, the compressor realizes soft-start. So improve compressor lifetime. At the same time, reduce the impact on the power grid of the factory.
(2) Secondly, prevent ice blockage of the evaporator at low load. Or prevent liquid compression from causing compressor damage.
(3) Thirdly, the evaporation temperature realizes PID automatic adjustment. Set the temperature according to actual needs. So vsd air dryer can maximum energy saving.
(4) Fourthly, keep the dew point stable. It supplies high-quality air at a stable, low dew point.
(5) Finally, the whole refrigerated air dryer system is advanced. Reliable performance and complete functions. Beautiful shape. Besides, the operation is simple. And the installation is convenient.
Technical parameters of our varaible speed drive air dryer:
Machine name | VSD refrigerated ai dryer |
Rated inlet air pressure | 7bar (6~10bar applicale, other pressurs customizable) |
Rated inlet air temperature | 50℃(Max ≤80℃) |
Pressure dew point | 2~10℃ |
Air pressure loss | ≤0.02MPa |
Cooling type of refrigerated air dryer system | water-cooled air dryer (air-cooled type customizable) |
Cooling water pressure | 0.2~0.4MPa |
Cooling water temeprature | ≤30℃ |
Avaiable refrigerant | R22, R410A, R407C |
Rated voltage | 380V50Hz/60Hz |
Working pressure range | 320V~460V |
Output frequency range | 30Hz~85Hz |
Adjustable accuracy | 1Hz |
Voltage sampling accuracy | ±5% |
Current sampling accuracy | ±1A |
Drive operating ambient temperature | -25℃~65℃ |
Application altitude of compressed air cooler dryer | <2000m |
Why choose our compressed air dryer? (1) There are two kinds of vsd air dryers for choice
Firstly, the first one is the DC variable speed drive air dryer. Compressor and fans are all vsd type. The frequency is controlled and regulated by the integrated control system. Compared with traditional refrigerant dryer, it can save energy by more than 30%.
Its advantages are as follows: large frequency conversion range. It’s up to 15HZ~140HZ. The control is sensitive and the energy saving is large. But the cost is relatively high.
Secondly, the another is the AC type VSD air dryer. The parts such as compressors and fans are all common models. They are just with a variable frequency controller. Change the incoming frequency. It generally saves 10% to 25% of energy.
This kind of refrigerated air dryer system is simple. But its frequency conversion range is small. It is usually 35~55HZ. Less energy saving. In addition, it has a certain impact on the life of compressors and fans.
(2) PLC+touch screen control
The VSD air dryer adopts PLC+7-inch touch screen intelligent control. Easy to operate. So it can observe operation data in real time. Besides, it’s with Modbus communication and RS485 interface. In addition, it can control the refrigerated air dryer system remotely. And transmit the data to the control system.
The VSD air dryer is with integrated PLC frequency conversion control system. It’s compact and easy to maintain.
(3) High quality variable speed drive scroll compressor
Adopt PM variable frequency scroll compressor. And use eco-friendly refrigerant R410a. The speed variation range is wide. Besides, low noise and stable performance. Both energy saving and environmental protection.
(4) Electronic expansion valve
The refrigerated air dryer system uses electronic expansion valve. It has high sensitivity. So can adjust the opening degree in time according to the actual working conditions. At the same time, match the working conditions of the inverter compressor. Ensure the stable and efficient operation of VSD air dryer.
(5) Multiple temperature monitoring
Real-time monitoring of temperature data around the dryer. And adjust the operating frequency of refrigerated air dryer system accordingly. It not only guarantees performance, but also maximizes energy saving.
How does VSD air dryer work?
The refrigerated air dryer system include a precooler and a heat exchanger. The former is to cool the air in the first step. The latter allows the air to exchange heat with the returning air. So it deeply cools the compressed air. At the same time, warms up the air when leaving VSD air dryer. Finally reduce their relative humidity.
Evaporator is to evaporate water vapor in the air. The air-water separator is connected to the evaporator. It’s for the separation of water vapor in the air. Then exhaust the dry air.
The refrigerant compressor is an VSD type. It can change the power supply frequency. Thereby regulating the load. Reduce power consumption and reduce losses. At the same time, it can prolong the service life of refrigerated air dryer system.
FAQ
Q1: What models does your VSD air dryer include?
A1: If more than 200m³/min, we do not recommend inverter control. Because it is greater than 200m³/min, our refrigerated air dryer system adopts screw compressor. It has built-in energy regulation. In addition, we also don’t recommend VSD air dryer when it’s less than 20m³/min. Because its compressor power is not large, the energy saving space is relatively small. Besides, VSD control system is relatively expensive.
Q2: How much energy can your variable speed refrigerant air dryer save?
A2: If DC vsd refrigerated air dryer, it can save energy by 30%. And if AC type, it can save energy by 10~25%.
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