Research on parameter design of heat exchange equipment for oil-injected screw air compressor in coal mines
NIE Bin
ZHAO Xu
LIU Jiang
YANG Fei
Abstract：In response to the insufficient research on key technical parameters of the residual heat exchanger for the oil-in-water screw air compressor in coal mines under different loading rates,taking an air compressor residual heat project in Inner Mongolia as the research object and adopting a method combining theoretical calculation and on-site testing to conduct design research on the key technical parameters of the oil-water tube shell heat exchanger.The results show that the comprehensive heat transfer coefficient of the heat exchanger is 514 W/(m2·K).When the air compressor loading rate is 98%,after the system operates stably,the cooling water temperature rises from 9.9℃to 54.0℃,and the production water volume reaches 4.18 m3/h,meeting the heat demand of the mining area.Increasing the flow velocity of the tube pass and reducing the inner diameter of the tube can effectively improve the heat transfer performance.
Keywords：air compressor residual heatshell and tube heat exchangerheat transfer performanceoverall heat transfer coefficient
Publication Date：2026-02-25
Online Publishing Date：2026-03-31(First online date of this platform, not the publication date of the document)
Pages：4( 81-84 )