BOILER OUTPUT RESTRICTIONS REMOVAL BY ADJUSTING THE AERODYNAMICS OF BLOWING TRACT ELEMENTS

Boilers KVGM type often used in heating systems of cities. Analysis of the operating parameters of the boiler showed that most KVGM operate with limited power, that is, the maximum boiler output by 15-30% lower than the nominal. During low-temperature district heating systems do not provide a com-fortable environment in apartments because of the limitations of power boilers. One of the main reasons for the limitations of power boilers is insufficient capacity fans or smoke exhausts. The analysis of op-tions to improve performance by increasing the fan speed of rotation of the impeller, or increase its di-ameter. These two options increase the performance of the fans based on the existing rules of design wind systems. Analysis of the results showed that the efficiency of the compressors in both cases keeps the predetermined high value, but significantly increases the unit cost of electric power. For KVGM-50 boilers developed and implemented energy-saving version of the lifting of restrictions boiler output without replacing the fan, but only by adjusting the aerodynamics flow paths. Increased productivity by reducing the fan flow resistances pieces of auxiliary equipment can increase the boiler output while re-ducing the cost of electric power to the fans.