煤矿瓦斯抽放用水环真空泵工作液温度调节控制系统研究  

Research on Temperature Control System of Working Fluid for Water Ring Vacuum Pump of Coal Mine Gas Drainage

作　　者：赵勇[1] 孟凡瑞 赵国勇[1] 赵玉刚[1] 孙海波 张丽丽[3] Zhao Yong;Meng Fanrui;Zhao Guoyong;Zhao Yugang;Sun Haibo;Zhang Lili(School of Mechanical Engineering,Shandong University of Technology,Zibo 255049,China;Zibo Water Ring Vacuum Pump Factory Co.,Ltd.,Zibo 255200,China;School of Agricultural Engineering and Food Science,Shandong University of Technology,Zibo 255049,China)

机构地区：[1]山东理工大学机械工程学院,山东淄博255049 [2]淄博水环真空泵厂有限公司,山东淄博255200 [3]山东理工大学农业工程与食品科学学院,山东淄博255049

出　　处：《煤矿机械》2019年第9期53-56,共4页Coal Mine Machinery

基　　金：淄博市校城融合发展计划项目（2018ZBXC310）

摘　　要：煤矿瓦斯抽放系统耗电量大,水环真空泵运行效率低。在测试水环真空泵工作液入水口温度与吸气量关系基础上,提出了一种水环真空泵工作液温度调节控制方法。优化了水环真空泵工作液冷却循环系统,完成了系统硬件设计选型,并进行了系统软件设计,通过PLC对变频电机的闭环控制实现了对工作液温度的实时调节。试验证明,该控制方法能有效降低水环真空泵的入水口工作液温度,从而增大水环真空泵的吸气量,并有节能效果。The coal mine gas drainage system consumes a large amount of electricity, and the water ring vacuum pump has low operating efficiency. Based on the relationship between the inlet temperature of the working fluid of the water ring vacuum pump and the inspiratory volume, a temperature control method for the working fluid of the water ring vacuum pump was proposed. The water circulation vacuum pump working fluid cooling circulation system was optimized, the system hardware design selection was completed, and the system software design was carried out. The closed- loop control of the variable frequency motor by PLC was used to realize the real-time adjustment of the working fluid temperature. The test proves that the control method can effectively reduce the temperature of the working fluid of the water inlet vacuum pump, thereby increasing the air intake of the water ring vacuum pump, and has an energy saving effect.

关 键 词：瓦斯抽放 水环真空泵 温度控制 变频 吸气量 节能 

分 类 号：TD712[矿业工程—矿井通风与安全] TP273[自动化与计算机技术—检测技术与自动化装置]