Variable wind pressure adjustable energy saving blower using V-belt variable pitch pulley and pitch adjustment type counter pulley

摘要

An object of the present invention is to provide an air conditioning system and an air conditioning system using an air handling unit and an air handling system using an air blower to control the airflow and the air pressure of the air conditioning system and the ventilation system, However, in the conventional blowers, the capacity of the blower is adjusted according to the installation conditions at the site of use, and the constant voltage and dynamic pressure and the capacity of the driving motor corresponding thereto are selected and used. However, It is necessary to readjust the wind quantity and wind pressure due to the difference between the actual resistance of the actual site and the structure of the site of use and the difference of the duct system. In addition, It is necessary to adjust the appropriate air flow rate accordingly.;A method of adjusting the air volume and wind pressure by the action of forcibly closing the air volume by using the conventional methods such as a suction damper, a discharge damper and a suction vane, or a method of improving only the control effect in a state where an inverter is installed and Many uncomfortable, insecure and difficult tasks have been repeated, such as preparing the V-belt pulleys and pulleys on the motor side of a large number of standards and re-moving the manpower required to replace them on the field.;In particular, a method of controlling by providing a resistance due to a forcible blocking effect due to the adjustment of a damper is used. This is because, even if the air volume and wind pressure are forcibly controlled, the backward curved wing formula (backward curved) Problems of unfavorable control method of centrifugal blowers of Forward Curved type in which airflow and wind pressure are largely controlled, and overcurrent phenomenon of motor due to overshoot due to excessive airflow due to adjustment of air volume and wind pressure And a means for new and convenient adjustment methods for the methods of increasing the air flow in the occurrence of the underexposed air flow.;It is possible to eliminate the unreasonable adjustment method and inconvenience and to produce the maximum effect of the rotation speed adjustment of 18%, the wind pressure adjustment of 36% and the shaft power adjustment of 54% by simply adjusting the rotation speed of the blower at the use site (Variable pitch-pulley on the puller side and pitch-regulating counter-pulley on the puller side), rotation speed adjustment 36%, wind pressure adjustment 72% The configuration of the configuration that produces the maximum control effect and the configuration of the blower together with the linear alignment between the pulleys and the convenience and accuracy of the tensioning of the V-belt.;Since the variable pitch and pulley-type counter pulleys are configured in the blower, it is possible to adjust the air volume and wind pressure according to the conditions in the field of use, and adjust the air volume according to the season, by simply adjusting the effective pitch circle of the pulleys The effect of reduction of the desired air volume, wind pressure, and shaft power is also reduced, and unnecessary pulley replacement, motor replacement, etc., and noise and vibration removal effects due to unreasonable adjustment by blocking method And the air conditioner facilities using the fan and blower can be operated comfortably and stably. In the case of the inverter operation method, since the correct air amount selection is performed by selecting the proper rotation speed, The original function can be further improved.