矿井冰制冷降温系统预冷机组故障分析与诊断  

Fault Analysis and Diagnosis for Pre-cooling Units of Ice-cooling System in Mine

作　　者：亓玉栋[1,2] 程卫民 于岩斌 潘刚 

机构地区：[1]山东科技大学山东省土木工程防灾减灾重点实验室,山东青岛市266590 [2]矿山热动力灾害与防治教育部重点实验室,山东阜新市123000 [3]矿山灾害预防控制重点实验室,山东青岛市266590

出　　处：《矿业研究与开发》2014年第4期102-104,107,共4页Mining Research and Development

基　　金：矿山热动力灾害与防治教育部重点实验室基金资助课题(JSK201209)

摘　　要：对山东唐口煤矿的两预冷机组制冷能效较低的问题进行了故障分析和诊断,指出冷却水水质较差及冷凝器水侧结垢严重是导致机组制冷量及制冷能效较低的原因。结合该矿实际,对两预冷机组进行物理清洗后采用一拖二的胶球在线自动清洗装置,运行结果表明,两预冷机组制冷量、制冷系数分别提高94%、40.6%及20.7%、31.2%,冷水出口水温分别为10.5℃和4.9℃,单位制冷量耗电量分别降低28.9%与24.0%,达到设计要求。Aimed at the low COP of the double-precooling units in Tangkou Coal Mine,the faults were diagnosed and analyzed.The quality of the cooling water and fouling in the condensers were pointed as the major reasons for poor cooling capacity and low COP.According to the conditions of the mine,physical cleaning was put forward on the double precooling units at first,and then one-driving-two automatic online cleaning device with rubber balls was adopted for further cleaning.The operating results showed that the cooling capacity and COP respectively increased by 94%,40.6% and20.7%,31.2%,the outlet temperatures of the chilled water were 10.5℃ and 4.9℃,and the electricity consumption of the unit cooling capacity decreased by 28.9% and 24.0%,which met the design requirements.

关 键 词：预冷机组 制冷系数 制冷量 水质 胶球在线自动清洗装置 

分 类 号：TD727[矿业工程—矿井通风与安全]