old type tube

This is directed against structure defect of mine old type tube - axial fan, make technique transform to combine practice, raises main fan running efficiency, receives notable economic benefits.

针对矿井老型号轴流式扇风机的结构缺陷，结合现场实际进行了技术改造，提高了主扇运动效率，收到了显著的经济效益。

T185-B lamp is suitable for all the users who use old type sunlight lamp, and they only need to take down starter and change the T185-B lamp to use; and if ballast tube is used, just take off it.

T185 - B适用于有老式日光灯支架的用户，用户只需要取下起辉器，换上t185 - B型LED日光灯即可，如果是电子镇流器的支架，需去掉电子镇流器。

By using new type tube arrangement, rationally adjusting support spacing of cooling tubes, and replacing cooling tubes, the old condenser was retrofitted in overhaul period.

通过采用新型排管方式、合理调整冷却管支撑间距，并同时更换冷却管材的方法在大修期内对凝汽器进行了改造。