基于传热介质的蒸汽加热凹印机能耗测试方法研究

Energy Consumption Test Method for Steam Heating Gravure Based on Heat Transfer Medium

目的提出蒸汽加热方式的凹版印刷机在印刷过程中能耗的测试方法。方法首先采用电平衡法建立凹印机消耗电能的数学模型,而后采用风量计量法和传热介质计量法分别建立蒸汽加热方式的凹印机消耗热能的数学模型,最后借助红外测温仪、超声波液体流量计和功率计对印刷厂中的多台凹印机进行现场测试。结果电阻丝和其他电机消耗的功率符合实际要求,通过测量的平均有功功率和功率因数反推得到的额定功率,与电机名牌示数上的额定功率十分接近,传热介质计量法和风量计量法分别求得的热能消耗值相接近。结论验证了蒸汽加热方式凹版印刷能耗测试方法的正确性和可行性,并较准确地测出了印刷过程中消耗的能量。

The aim of this study was to propose a test method of energy consumption during printing by a steam heating gravure. Firstly, a mathematical model of power consumption for steam heating gravure was built by energy balance method. Secondly, two kinds of mathematical models for heat consumption of steam heating gravure were established by the methods of air volume measurement and heat transfer medium metrology. Finally, field tests were conducted on a number of gravures in the printing factory with infrared thermometer, ultrasonic liquid flow meter and power meter. The test results showed that the power of motor and resistance wire were conformed to the actual requirements, the rated power deduced from average active power and power factor was very closed to the rated power shown on the motor nameplate, and the energy consumption values obtained by the methods of heat transfer medium measurement and air volume measurement were similar. The test results verified the correctness and feasibility of the energy consumption test method of steam heating gravure, and had correctly measured the value of energy consumption during printing.