王文刚

[摘    要]南京市鼓楼医院中央空调系统的制冷量设计偏大，当时设计是按现场满客流条件来计算最大冷量，核算出空调主机的容量及冷冻水流量。然而，实际使用下来此类情况较少出现，从而导致空调主机都是在部分负荷条件下运行的，这无疑造成了大量的能源白白浪费。而且，空调系统发生故障时不能及时得到信息，以解决问题，排除故障，造成医院运营受到影响和顾客投诉。文章利用最新的物联网数据采集、大数据分析以及云端算法技术，对中央空调系统进行数据采集、云端数据存储与分析、云端智能控制，实现中央空调系统的智能自动运行。数据采集系统采用全无线方式，传感器安装无需破管走线，数据采用无线通讯传输。

[关键词]物联网;云端智控;数据采集

[中图分类号]TM63;TP391.44;TN929.5 [文献标志码]A [文章编号]2095–6487（2021）07–00–03

Application of Intelligent Control System of Central Air Conditioning Internet of Things

Wang Wen-gang

[Abstract]The cooling capacity of the central air conditioning system of Nanjing Gulou Hospital was designed to be too large. At that time， the maximum cooling capacity was calculated according to the full passenger flow condition on site， and the capacity of the air conditioning host and the chilled water flow were calculated. However， the actual use of such a situation rarely occurs. As a result， the main air conditioner is running under partial load， which undoubtedly causes a lot of energy waste. Moreover， when the air-conditioning system fails， it can not get information in time， solve the problem in time， and eliminate the fault， resulting in the impact of hospital operation and customer complaints. This paper uses the latest Internet of things data acquisition， big data analysis and cloud algorithm technology to carry out data acquisition， cloud data storage and analysis， cloud intelligent control of the central air conditioning system， and realize the intelligent automatic operation of the central air conditioning system. The data acquisition system adopts all wireless mode， the sensor installation does not need broken pipe wiring， and the data is transmitted by wireless communication.

[Keywords]Internet of things; Cloud intelligent control; data acquisition

“十四五”提出我國已进入高质量发展阶段，节能工作向系统化，精细化，规范化进一步迈进，针对大功率设备的节能提出了新的要求。从暖通行业市场规模看，按一个机组折算，国内水机有上百万个冷水机组，并以每年10%左右速度增长。空调电耗约占总电耗的一半，开源节流是企业经营永恒的主线，提高管理效益，增加企业竞争力的内在动力。

1 项目概况

南京市鼓楼医院，建筑面积约15万m²，中央空调采用4台冷水机组制冷;冬季采用4台热水锅炉供暖（见表1中央空调系统设备）。由于冷水机组位于地下室，从分布区域看，项目空调系统分布较为离散，人为管理难度很大，无法实时掌控空调系统运行状态。……