工矿企业的空气压缩机(以下简称空压机)几乎都是满负荷运行与卸荷空转在交替循环。绝大多数矿区的空压机是满负荷运行的时间大于卸荷空转的时间。但是几乎所有的矿区每个小班都有空压机长期卸荷空转而白耗电能的现象。单板机控制空压机运行的节能保护装置主要就是为解决这一问题而研制的。该装置经在湖南省潭家山煤矿四工区及湖南省煤炭坝煤矿五亩冲工区半年多的实际运行,证明性能稳定可靠,节电效果显 Industrial and mining air compressors (hereinafter referred to as air compressors) are almost all at full capacity and unloading idle cycles alternately. The vast majority of mine air compressor is full load operation time is greater than unloading idle time. But almost all of the mining area has a long-term unloading of air compressors in each small class and consume energy. Slot machine control air compressor operation of the energy conservation protection device is mainly developed to solve this problem. The device by the Tanjushan coal mine in Hunan Province and the coal mines in Hunan Coal Mine five acres of red area more than half a year of actual operation proved stable and reliable performance, power-saving effect was significantly