A new class of compressed air dryers: DRYPOINT® M eco control

Introducing the electronically controlled drying system

With the DRYPOINT® M eco control, the compressed air specialist BEKO TECHNOLOGIES is launching the world's first drying system that allows for the precise control of the degree of drying across a defined range. Operators are thus in a position to optimise the compressed air quality to suit their specific applications, as the chosen degree of drying is always met, even under changing operating conditions. What is more: The system only consumes energy when in drying operation mode. The DRYPOINT® M eco control closes the gap that currently exists between refrigeration and adsorption dryers.

The DRYPOINT® M eco control combines low costs and excellent operational safety with short reaction times and a compact installed size. This is why this product series also bears our eco seal.

Thanks to the advanced technology behind the DRYPOINT® M eco control, the purge air demand is reduced in line with the actual compressed air volume, minimising operating costs. For this purpose, the device is equipped with a sensor that measures the humidity and temperature of the compressed air at the outlet of the membrane dryer. These measurements are taken into account for the cycle control of the solenoid valve for dosed purge air supply.

The control software decides in cycles if and for how long the complete purge air volume is to be supplied in order to achieve and stabilise the required degree of drying. The purge air control system of the DRYPOINT® M eco control works independently, and all control parameters are obtained automatically from the process.

The system made from tried and tested components including a membrane dryer, compressed air filter, control unit and sensors is easy to operate and requires only minimum maintenance. All you need to do is change the filter elements from time to time. The fail-safe function guarantees that the compressed air is dried to the desired level, even in the event of a power failure.

Depending on the actual application and requirements, the unit can be operated in two different modes. You can therefore choose how the dryer is to be behave under changing operating conditions (pressure, temperature useful air volume):

In Constant Mode, the pressure dew point at the outlet is kept constant. Operators of compressed air systems generally use this pressure dew point as an indicator of the degree of drying of the compressed air. With this mode option, the DRYPOINT® M eco control closes the gap that exists between refrigeration and adsorption dryers, as the operator has now the option to select a pressure dew point between +10 and -25 °C that best suits his application.

In Dynamic Mode, the dryer is operated so that a constant difference between the compressed air temperature and the pressure dew point at the outlet is maintained. In this operating mode, the pressure dew point is reduced relative to the compressed air temperature by a specified difference between 10 and 55 K. If the inlet temperature changes, the pressure dew point will automatically follow suit. The operator can thus be rest assured of consistent operational safety, even in the case of changes in the compressed air temperature.

The respective operating mode and the application-specific degree of drying can be selected quickly and easily via the user-friendly interface. The set mode and state are clearly indicated by LEDs. If required, fault signals can be forwarded through a floating contact. An analogue interface for data transfer allows for user-friendly performance monitoring and visualisation, for example by means of a METPOINT® UD01 plug-on display or a METPOINT® BDL unit from BEKO TECHNOLOGIES. With the DRYPOINT® M eco control, BEKO TECHNOLOGIES has taken another step towards Industry 4.0.

The patent for the DRYPOINT® M eco control is pending.