Research and design of air compressor electric drive modification

 

ZHANG Qingju, ZHANG Baozhong, ZHU Hongsi

(Ship service Co., LTD of DSIC, DaLian 116001, China)

 

Abstract: Aiming at the problems of a tugboat air compressor insufficient filling capacity, the model is too old to buy spare parts ,the air compressor by electric driven was selected and modified. Based on the calculation of the air volume required for starting the M/E, the change of state of compressed air inside the bottle was analyzed and studied.By using the relationship between the parameters of isothermal change of the standard gas , the starting air bottle volume to meet the requirements was calculated. By total volume and pressure range of the starting air, the parameters of air compressor were calculated; the air compressor′s model was selected after checking. The results indicate that all starting air bottle were fulled by the selecteded and connected air compressor unit, only cost 0.9 hours , was identical with the calculation data; does not exceed 1 hour requirement, meet requirement of the shipbuilding specification; modified method of electrical drive is feasible for the air compressor.

Key words: isothermal change; parameter proofreads; motor driven; V type belt connect