DF7G型机车预热系统电路改造研制
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摘要
针对DF7G内燃机车预热系统运用锅炉式预热方式已不能满足现有机车技术要求,设计了"PTC"即热式电热水器的控制方式,详细描述了预热系统改造原则和方案、原预热锅炉被取代,新型电路控制系统的结构设计,解决了DF7G内燃机车预热系统低温环境下不能正常启停的技术难题,为DF7G机车新型预热系统提供新方法,确保车辆在低温环境下安全、稳定的运行,大大降低燃油成本,提高内燃机车性能。
As the boiler preheating method for DF7 G diesel locomotive preheating system can no longer meet the technical requirements of existing locomotives,the original preheating boiler was replaced,while the controlling method of PTC instant electric heater was designed. The transformation principles and schemes of the preheating system are described in detail in this paper. The new circuit controlling system solved the technical problem of the DF7 G diesel locomotive that preheating system could not be started or stopped normally under low temperature. This system will also provide new ways for the new preheating system of the DF7 G locomotive to ensure the safe and stable operation of the vehicle under low temperature. The cost of fuel will be reduced to a large extent,and the performance of diesel locomotives will be improved.
As the boiler preheating method for DF7 G diesel locomotive preheating system can no longer meet the technical requirements of existing locomotives,the original preheating boiler was replaced,while the controlling method of PTC instant electric heater was designed. The transformation principles and schemes of the preheating system are described in detail in this paper. The new circuit controlling system solved the technical problem of the DF7 G diesel locomotive that preheating system could not be started or stopped normally under low temperature. This system will also provide new ways for the new preheating system of the DF7 G locomotive to ensure the safe and stable operation of the vehicle under low temperature. The cost of fuel will be reduced to a large extent,and the performance of diesel locomotives will be improved.
引文
[1]赵立仁,张树春,马宗元.DGHES系列内燃机车热电预热系统[J].内燃机车2009(3):7-9.
[2]曹祥诚.DF_4型内燃机车预热系统的改造[J].铁道技术监督,2009(10):43-46.
[3]李青川.PLC在8K机车控制系统的应用研究[D].西南交通大学,2015.
[4]张惠敏.柴油发电机组辅助系统模块化设计[J].铁道交通装备与技术,2015(7):12-14.
[5]王海文,李世涛.电气控制与PLC[M].武汉:华中科技大学,2015.
[6]刘欢.柴油机燃油低烧预热系统的研究[D].华北电力大学,2015.
[7]王尧.重型柴油机预热系统传热特性分析[D].吉林大学,2014.
[8]佟巳刚,姜波.基于单片机的远程控制启动柴油机预热系统[J].电子世界,2014(5):346.
[2]曹祥诚.DF_4型内燃机车预热系统的改造[J].铁道技术监督,2009(10):43-46.
[3]李青川.PLC在8K机车控制系统的应用研究[D].西南交通大学,2015.
[4]张惠敏.柴油发电机组辅助系统模块化设计[J].铁道交通装备与技术,2015(7):12-14.
[5]王海文,李世涛.电气控制与PLC[M].武汉:华中科技大学,2015.
[6]刘欢.柴油机燃油低烧预热系统的研究[D].华北电力大学,2015.
[7]王尧.重型柴油机预热系统传热特性分析[D].吉林大学,2014.
[8]佟巳刚,姜波.基于单片机的远程控制启动柴油机预热系统[J].电子世界,2014(5):346.