逆流式冷却塔的热力计算研究与红外热像温控系统设计  

Thermal Calculation of Countercurrent Cooling Tower and Design of Infrared Thermal Image Temperature Control System

作　　者：胡扬 陈成[1] 华桑暾 邱亚峰[1] HU Yang;CHEN Cheng;HUA Sangtun;QIU Yafeng(School of Mechanical Engineering,Nanjing University of Science and Technology,Nanjing 210094,China)

机构地区：[1]南京理工大学机械工程学院,江苏南京210094

出　　处：《红外技术》2021年第3期225-229,共5页Infrared Technology

摘　　要：以冷却塔红外热像温控系统设计为目的,根据水电混合动力冷却塔的结构特性,基于冷却塔内热质交换平衡方程及Merkel数学模型建立水电混合动力冷却塔热力计算理论模型。运用红外热成像技术建立逆流式冷却塔热力性能监测模型,完成冷却塔的温控系统设计,并分析冷却塔温控系统温控精度误差产生原因。通过使用手持式红外测温仪进行现场实验,验证了热力计算模型的准确性和其应用于冷却塔温控系统设计的可行性。In this study,a temperature control system was designed based on an infrared thermal image of a hydroelectric hybrid cooling tower.A theoretical model of a cooling tower thermal calculation was deduced based on the structural characteristics of a hydroelectric hybrid cooling tower,as well as the balance equation of heat and mass exchange in a cooling tower and the Merkel mathematical model.A thermal performance monitoring model of a countercurrent cooling tower was first developed using infrared thermal imaging technology,and then the temperature control system for a cooling tower was designed.The causes of temperature control precision errors in the cooling tower temperature control system were analyzed.The accuracy of the thermal calculation model and the feasibility of using a hand-held infrared thermometer for designing the temperature control system of a cooling tower were verified by field experiments.

关 键 词：红外热成像 热力计算理论模型 温控系统 

分 类 号：TN219[电子电信—物理电子学]