Measuring chamber sensor dewy point - BDRY-MK

Product detailed description

Dew point sensor measuring chamber - for regeneration air saving - BDRY-MK

Operating cycles of BDRY adsorption dryers

B-DRY dryers can operate in two operating modes depending on the settings of the control unit.

Ten-minute duty cycle

If the dryer is supplied in the standard version or equipped with a dew point sensor and a fixed time operating cycle is set, the production columns are switched after a fixed time. In this mode, the energy losses of the dryer are directly dependent on the amount of purge air used to regenerate the production columns. Energy losses are optimised in the B-DRY and F-DRY dryers thanks to a 10-minute duty cycle:

• 5 min = adsorption
• 4 min = regeneration
• 1 min = column pressurization

The extended duty cycle with 12 changeovers per hour also reduces wear and ensures more reliable operation. If the dryer is equipped with a dew point sensor
point, its operation can be controlled based on the dew point value. In this case, energy losses are reduced to the minimum possible level.

Energy-saving dew point control (DPD)

The B-DRY and F-DRY series dryers were designed for "full load" at specified operating conditions (flow, pressure, temperature). In reality, however, "full load" is never achieved during the total operating time, which means that the dryer often operates only with a partial load. In this case, the proportion of "cleaning air" used for regeneration may decrease proportionally. The B-DRY and F-DRY dryers can be equipped with a dew point sensor that can detect a reduced load and then the control unit automatically adjusts the operating cycles, reducing energy losses to a minimum level.

Energy savings (stand-by)

The B-DRY dryers can be optionally equipped with remote control, where they are controlled by a stand-by signal from the compressor or the master control system. If a stand-by signal is present, air can flow freely through both columns in the inlet to outlet direction. The dryer control unit is in stand-by mode and is ready to switch to normal operation as soon as it receives a signal to do so. The stand-by signal is fed to the B-DRY via a relay contact on the control unit.