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王振民, 潘成熔, 冯允樑, 阙福恒. 电力电站冷凝器钛合金管板自动焊机的研制[J]. 焊接学报, 2014, 35(2): 10-14.
引用本文: 王振民, 潘成熔, 冯允樑, 阙福恒. 电力电站冷凝器钛合金管板自动焊机的研制[J]. 焊接学报, 2014, 35(2): 10-14.
WANG Zhenmin, PAN Chengrong, FENG Yunliang, QUE Fuheng. Automatic welding machine system designed for titanium alloy tube-sheet joint of power plant condenser[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 2014, 35(2): 10-14.
Citation: WANG Zhenmin, PAN Chengrong, FENG Yunliang, QUE Fuheng. Automatic welding machine system designed for titanium alloy tube-sheet joint of power plant condenser[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 2014, 35(2): 10-14.

电力电站冷凝器钛合金管板自动焊机的研制

Automatic welding machine system designed for titanium alloy tube-sheet joint of power plant condenser

  • 摘要: 为提高电力电站冷凝器钛合金管板接头环形焊缝的焊接质量,研制了一种数字化、可视化以及自动化的管板焊机.为提高动态响应性能,焊接电源主电路采用了逆变频率为100 kHz的全桥拓扑结构;以基于ARM公司Cortex-M4内核的LM4F232 MCU(微控制器)为核心,设计了焊接过程数字控制系统,开发了基于模糊逻辑判断的参数自整定PI(比例积分)算法,提高了焊机对不同工况的适应性;设计了基于触摸屏和ARM微处理器的人机交互系统,实现了人机交互的数字化和可视化.系统测试以及焊接试验均表明,研制的管板焊机性能优良,能够满足冷凝器钛合金管板优质高效焊接的需求.

     

    Abstract: To improve the welding quality of circumferential welds of the titanium tube-sheet joint of power plant condenser, an automatic tube-sheet welding system with digital control and visual operation characteristics is developed. The main circuit of welding inverter adopted a frequency of 100 kHz fullbridge topology for improving the dynamic response performance. The digital control system for the welding process is designed based on ARM Cortex-M4,in which the LM4F232 MCU is used as the core element. The parameter self-tuning PI algorithm based on fuzzy logic judge is developed to improve the welding adaptability under different working conditions. The human-computer interactive system based on ARM microprocessor and touch screen is designed,achieving digitalization and visualization of human-computer interaction. System testing and welding experiments show that the developed tube sheet automatic welding machine is with good performance,and can meet the demands of high quality and efficiency welding for the condenser titanium tube sheet joints.

     

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