高效空压站监控系统的研究
发布时间：2018-12-17 15:25
【摘要】：本文研究一种高效的空气压缩站监控系统。空气压缩机作为工业生产过程中的压缩气体输出设备,广泛应用于生产制造行业。在制管厂中,运用空气压缩机产生的压缩气体对半成品钢塑管进行喷砂。对企业而言,由于对压缩气体的需求较大,均需要建立两台以上的空气压缩机组成的空压站。空压站就是压缩空气站,由多台空气压缩机、储气罐、空气处理净化设备、冷干机组成。目前,在国内大多数企业中,对空压站内所有设备的控制方式均为人工控制、单机运行。这些控制方式导致空压站内设备的空转现象较多而造成电能的极大浪费。另外,不能根据现场的用气量情况对空压站内的设备进行控制,因此无法满足用气车间对压缩气体压力稳定的要求。论文阐述了一套高效空压机监控系统。该监控系统按功能划分为:输入输出模块,空压机控制模块,参数自整定的模糊PID控制模块,顺序控制模块,通讯模块和报警模块。在各模块的作用下,监控系统根据空压站输出压力,自动控制整个空压站。使压缩气体的压力保持在稳定的范围内,实现高效生产。也使空气压缩机的运行更加安全可靠,从而达到恒压控制、节能环保、节约人力资源的目的。参数自整定的模糊PID控制模块是监控系统的重点。模糊控制器可以根据空压站输出压力偏差及偏差变化率实时调节PID控制的三个参数和监控系统的运行参数,由此改变空压站内设备的工作状态,以满足用气车间对总管压力值的要求。本监控系统的控制程序和人机界面分别应用西门子STEP 7软件和Win CC软件进行开发。用户在电脑上便可以控制空气压缩机的运行方式以及监测到整个空压站内各设备的实时运行参数。监控系统可以读取到设备的工作电压与工作电流值,通过程序中的计算程序,算出机器的实际功耗,可以实现能源的监测。此外,该系统还具备历史查询功能和趋势分析功能,为生产分析、流程管理提供了有效的手段。通过该监控系统的控制,在保证生产用气的前提下,整个空压站的用电量较手动控制节省20%,同时还节省了大量的人工成本。该监控系统为企业实现高效生产、降低成本、提高经济效益奠定了良好的基础。
[Abstract]:In this paper, an efficient air compression station monitoring system is studied. Air compressor, as a compressed gas output equipment in industrial production, is widely used in manufacturing industry. In pipe making plant, semi-finished steel plastic pipe is sandblasted with compressed gas produced by air compressor. For enterprises, because of the large demand for compressed gas, two or more air compressors should be built. Air pressure station is compressed air station, composed of multiple air compressors, gas storage tanks, air treatment and purification equipment, cold drying machine. At present, in most domestic enterprises, the control mode of all equipments in the air compressor station is manual control and single machine operation. These control methods lead to more idling phenomena of the equipment in the air compressor station, resulting in a great waste of electric energy. In addition, the equipment in the air pressure station can not be controlled according to the gas consumption in the field, so it can not meet the requirements of the pressure stability for compressed gas in the gas workshop. This paper describes a set of high-efficiency air compressor monitoring system. The monitoring system is divided into input and output module, air compressor control module, fuzzy PID control module with self-tuning parameters, sequence control module, communication module and alarm module. Under the action of each module, the monitoring system automatically controls the whole air pressure station according to the output pressure of the air pressure station. Keep the pressure of compressed gas in a stable range to achieve efficient production. Also make the operation of air compressor more safe and reliable, so as to achieve constant pressure control, energy conservation and environmental protection, save human resources. Fuzzy PID control module with self-tuning parameters is the focus of monitoring system. The fuzzy controller can real-time adjust the three parameters of PID control and the operating parameters of the monitoring system according to the output pressure deviation and deviation variation rate of the air compressor station, thereby changing the working state of the equipment in the air compression station. To meet the pressure requirements of the main pipe in the gas workshop. The control program and man-machine interface of this monitoring system are developed by Siemens STEP 7 software and Win CC software respectively. On the computer, the user can control the operation mode of the air compressor and monitor the real-time operation parameters of the equipment in the whole air compressor station. The monitoring system can read the operating voltage and current value of the equipment, calculate the actual power consumption of the machine by the calculation program in the program, and realize the energy monitoring. In addition, the system also has historical query function and trend analysis function, which provides an effective means for production analysis and process management. Through the control of the monitoring system, the power consumption of the whole air compressor station is saved by 20% compared with manual control, and a large amount of labor cost is also saved under the premise of ensuring the production gas consumption. The monitoring system lays a good foundation for enterprises to achieve efficient production, reduce costs and improve economic benefits.
【学位授予单位】：东华大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：TH45;TP277
本文编号：2384386
[Abstract]:In this paper, an efficient air compression station monitoring system is studied. Air compressor, as a compressed gas output equipment in industrial production, is widely used in manufacturing industry. In pipe making plant, semi-finished steel plastic pipe is sandblasted with compressed gas produced by air compressor. For enterprises, because of the large demand for compressed gas, two or more air compressors should be built. Air pressure station is compressed air station, composed of multiple air compressors, gas storage tanks, air treatment and purification equipment, cold drying machine. At present, in most domestic enterprises, the control mode of all equipments in the air compressor station is manual control and single machine operation. These control methods lead to more idling phenomena of the equipment in the air compressor station, resulting in a great waste of electric energy. In addition, the equipment in the air pressure station can not be controlled according to the gas consumption in the field, so it can not meet the requirements of the pressure stability for compressed gas in the gas workshop. This paper describes a set of high-efficiency air compressor monitoring system. The monitoring system is divided into input and output module, air compressor control module, fuzzy PID control module with self-tuning parameters, sequence control module, communication module and alarm module. Under the action of each module, the monitoring system automatically controls the whole air pressure station according to the output pressure of the air pressure station. Keep the pressure of compressed gas in a stable range to achieve efficient production. Also make the operation of air compressor more safe and reliable, so as to achieve constant pressure control, energy conservation and environmental protection, save human resources. Fuzzy PID control module with self-tuning parameters is the focus of monitoring system. The fuzzy controller can real-time adjust the three parameters of PID control and the operating parameters of the monitoring system according to the output pressure deviation and deviation variation rate of the air compressor station, thereby changing the working state of the equipment in the air compression station. To meet the pressure requirements of the main pipe in the gas workshop. The control program and man-machine interface of this monitoring system are developed by Siemens STEP 7 software and Win CC software respectively. On the computer, the user can control the operation mode of the air compressor and monitor the real-time operation parameters of the equipment in the whole air compressor station. The monitoring system can read the operating voltage and current value of the equipment, calculate the actual power consumption of the machine by the calculation program in the program, and realize the energy monitoring. In addition, the system also has historical query function and trend analysis function, which provides an effective means for production analysis and process management. Through the control of the monitoring system, the power consumption of the whole air compressor station is saved by 20% compared with manual control, and a large amount of labor cost is also saved under the premise of ensuring the production gas consumption. The monitoring system lays a good foundation for enterprises to achieve efficient production, reduce costs and improve economic benefits.
【学位授予单位】：东华大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：TH45;TP277
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