换热器管壁污垢热阻监测设备的设计  

Design of heat exchanger tube wall fouling thermal resistance monitoring equipment

作　　者：鲍磊 林百娟 马齐 BAO Lei;LIN Bai-juan;MA Qi

机构地区：[1]内蒙古润达能源管理服务有限公司,内蒙古鄂尔多斯017000 [2]华能电力热力销售有限责任公司,内蒙古呼和浩特010051 [3]呼和浩特热电厂,内蒙古呼和浩特010050

出　　处：《节能》2024年第6期124-128,共5页Energy Conservation

摘　　要：在集中供热系统中,一次网是指从热源出发,经过供水管道等设备后,提供热量给二次网交换的热水管路系统;二次网是指通过供暖设备、散热器和管路等设备,将热水供应到各个供暖区域的管路系统。在二次网小区换热站中的换热器性能随着使用时间的推移,性能有所下降,原因是换热器中形成污垢引起,加大了循环泵的功耗,增加了运行成本。在换热器定期运行中,为了实现对小区换热站中的换热器管壁结垢情况进行监测,文中设计了一种监测换热器污垢热阻在线监测设备的方案,该方案采用单片机AT89C52和DS18B20温度传感器组成下位机并进行编程,上位机采用VB语言来进行设计,通过试验证明该方案可以实现对换热器污垢热阻的在线监测。In the centralized heating system,the primary network refers to the hot water pipeline system that provides heat to the secondary network after passing through equipment such as the water supply pipeline from the heat source.The secondary network refers to the pipeline system that supplies hot water to various heating areas through heating equipment,radiators,and pipelines.Over time,the performance of the heat exchanger in the secondary network's district heat exchange station declines,due to the formation of fouling in the heat exchanger,which increases the power consumption of the circulating pump and the operating cost.In the regular operation of the heat exchanger,to monitor the fouling condition on the tube wall of the heat exchanger in the district heat exchange station,this paper designs a scheme for an online monitoring device for heat exchanger fouling thermal resistance.The scheme uses the microcontroller AT89C52 and the temperature sensor DS18B20 to form the lower machine and for programming,and the upper machine is designed using the VB language.Experiments have proven that this scheme can achieve online monitoring of the heat exchanger fouling thermal resistance.

关 键 词：污垢热阻 温度测量 温度传感器DS18B20 单片机AT89C52 

分 类 号：TG174[金属学及工艺—金属表面处理]