MICOS VSD Screw Air Compressor MICOS 37~15V(37~150kW)

MICOS VSD Screw Air Compressor
MICOS 37~15V(37~150kW)

MICOS VSD(Variable Speed Drive) screw compressor is the optimal choice for reduced energy expense.
In most factories, energy consumed on producing compressed air takes a large portion of total energy expense. During production, demand of compressed air shows different patterns based on time, day and month; and general compressor (normal speed drive system) repeats loading/unloading operation according to the demand. MICOS VSD compressor changes drive motor's rotation speed to produce only the necessary amount according to actual demand of compressed air. It eliminates unload operation and frequent restart of compressor and consistent discharge pressure provides energy saving up to 30% of total energy expense.

Available model
- Variable speed drive compressor 37 ~ 150kW (50~200 hp)

Major characteristics

Analysis on energy reduction theory and economical value
Conventional compressor produces only fixed volume of air from fixed speed because it cannot change the motor's rotation speed. When purchasing a compressor, most factories consider highest demand plus margin. However, the actual compressor operation remains at 50-80% due to continuous changes in demand. Current conventional compressor is unable to comply with constant changes in demand. Therefore, it wastes energy by repeating regulation control, loading/unloading operation and stop and restart. MICOS VSD compressor, unlike conventional compressor, uses high efficient inverter and motor to control motor rotation speed. This feature changes the discharged air volume to produce only necessary volume; hence saves energy.

Analysis on energy reduction theory and economical value
MICOS VSD compressor produces only the necessary amount demanded by the operation. When demand is low, unloading operation can be eliminated to maximize energy savings. When variable speed compressor and conventional compressor are operated together, excessive initial investment to accommodate for the highest demand can be prevented.
Purchasing price of conventional compressor is under 10% of total life expense where compressor operational expense is approximately 80%. Although approximately 5% of initial investment expense increases if MICOS VSD type compressor is purchased, the overall life expense can be reduced by 22%.

Technical Data

Structure of MICOS VSD type Compressor

Advantage

Advantage of MICOS VSD type Compressor

Large aperture airend with high efficient profile Founded on extended experience of its independent research staff on power electronic industry, Yujin developed an inverter drive type compressor in 1999 for the first time in Korea and have devoted in enhancing efficiency and controllability ever since. With such effort, YUJIN's Variable Speed Drive inverter type compressor is produced with quality equivalent to advanced products (United states of America patent number us 6,394,758 B1).	Efficient inverter and inverter motor MICOS VSD compressor applies CE and UL approved high-efficient inverter and its own motor to accurately follow highly fluctuating operational characteristics of a compressor. This analysis then controls discharged pressure within 0.1 bar of predetermined pressure.
MICOS-II inverter controller MICOS-II inverter controller, with large graphic LCD, can apply Korean interface and allow optimal compressor operation through various functions including inverter motor control according to variable loads, compressor operation monitoring, machinery protection and maintenance message. If integrated system is utilized, multiple compressors and auxiliary system can be controlled via customers' PC.	Air Demand Analysis Tool MICOS VSD compressor is selected through a process where each factory's daily air consumption volume is analyzed using ADT. ADT analyzes customers' air consumption pattern to select maximum energy conserving model and enables simulation on energy consumption with selected model before compressor is installed.

Open discharge pressure selection
The discharged pressure of MICOS VSD compressor can be freely selected within 5~13 bar range with its own controller. This feature smoothly copes with main line pressure fluctuation (due to differential pressure from line filter and others) during compressor operation.

Advanced package concept and full grinding high efficiency airend application
MICOS VSD compressor exhibits low vibration noise and high efficiency by applying standard MICOS compressor and new teeth type 5X6 Profile screw airend. In addition, inverter's soft start & stop extends durability and prevents performance decline by preventing mechanical shock following an increase in start and stop torque (common in conventional compressors).

Circuit diagram

MICOS VSD type Compressor circuit diagram