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一、2K60—1型风机的使用情况我矿自1983年使用2K60—1型№18号轴流式风机以来收到良好的经济效益。它与老式70B_2型轴流式风机相比效率较高,利于节能。现场测试该型风机装置效率达80％以上,静压效率达到说明书的要求。该型风机装有消音装置,噪声低,同时装有手动电动返风装置,不需专门返风道,反转即可返风。测试结果表明反风时可达原风量的61％,达到《煤矿安全规程》提出的要求。但该风机在设计上还存在一些问题,例如返风装置操作不够灵活。由于井下空气潮湿,水、煤粉常常粘在机壳上,造成中导叶不能转动。主要原因有二:1.中导叶回转时两端弧线处与机壳间隙太小,转动受到粘结
First, the use of 2K60-1 fan I mine since 1983 using 2K60-1 type № 18 axial fan has received good economic benefits. It is more efficient than the old 70B_2 axial flow fan, which is good for energy saving. Field test of this type of fan device efficiency of 80% or more, static pressure efficiency to meet the requirements of the manual. This type of fan is equipped with muffler, low noise, while equipped with manual electric back to the wind device, without a special return airway, reverse can return to the wind. The test results show that the wind up to 61% of the original wind, to “Coal Mine Safety Regulations” made the request. However, there are some problems with the design of the fan, for example, the operation of the air return device is not flexible enough. As the downhole air humidity, water, coal often stick to the case, resulting in the guide vane can not rotate. There are two main reasons: 1. In the guide vane rotation at both ends of the arc at the shell clearance is too small, the rotation is bonded