There are three main customer demands for fans in the field of ventilation: Energy efficiency, adaptive self-regulation control ability according to load changes, and flexibility to meet the variety of application needs of customers.
Traditionally, AC motor is usually used as fan impeller driving device that have many advantages of EC technology are becoming more and more difficult to ignore. Over KW three-phase AC asynchronous motor has satisfactory efficiency in full loading operation, but the efficiency of single-phase or less than KW three-phase motor cannot meet the requirements. AC motors also need to use frequency converters to control speed, which will cause power loss, and additional filtering is required to protect sensitive motor bearings. Using frequency converter to drive asynchronous motor with partial load often produces noise, which makes the motor hum.
BLAUBERG EC(Electronically Commutated) motor adopted DC brushless circuit engine driving principle. It has integrated electronics controller that is convenience to be controlled at maximum efficiency up to 90%. The EC motor could quietly rotate, even if it is operating no at full-loading performance point. Ventilation and purification industries commonly request that fans and relative products that could be controlled by integrated electronic device and manipulated by software program, besides wireless access necessary.
It makes BLAUBERG to be air ventilation and air purification industries priority fan supplier by our constant concentration on aerodynamic engineering system creative solution to decrease customers’ operating and maintaining cost. Our EC motor power goes up to maxim 1320W that could drive axial and centrifugal impeller to maximum diameter 710mm. According customer’s technology requirements that EC motors software program could drive fans at constant speed, constant airflow by closed-loop feedback system circuit setting, with optional outside connecting devices, such as, integrated PID controller, thermal speed control sensor with power supply and RS485 Modbus interface for remote refresh, updating program and diagnosis.
By comparing the actual operation and maintenance costs in entire fan life cycle, it is concluded that our fan can ideally meet the market requirements as appropriate solutions.
It was adopted generally by following ventilation and purification sub-units and systems:
-Air Handling Unit(AHU)
-Central Ventilation Units
-Decentralized Ventilation Units
-Single Room Ventilation Duct Fan Unit
-Under-floor Ventilation System
-VAV, a damper control system for Variable-Air-Volume air handling system
-Wet Room Ventilaiton
-Vertical HVAC Independent System
-Recycling Water Cooling Fan Chiller
-ERV, Energy Recovery Ventilation ,single-room heat recovery ventilation units, centralized with ducts system and de-centralized with wall-mounting
-UV-resistant Negative Pressure Medical Purification Bin, Cabinet, Temporary Mobile Cabin Hospital
-Inlet Air Filter Units
-Household Air Purifier
-Clean Room FFU, Fan Filter Units
-EFU, Equipment Fan Filter Units
–Ventilation Fan Wall