基于电器实验室用气特点的压缩空气动力系统节能改造分析  

Analysis of Energy Saving Transformation of Compressed Air Power System Based on the Characteristics of Gas Used in Electrical Laboratory

作　　者：丁锦华 苗本健 李赛赛 赵婧 周小猛 胥嘉良 郭向荣 Ding Jinhua;Miao Benjian;Li Saisai;Zhao Jing;Zhou Xiaomeng;Xu Jialiang;Guo Xiangrong(Guangdong Institute of Product Quality Supervision and Inspection,Guangzhou 510330,China;Guangdong Institution of Standardization,Guangzhou 510220,China;Shenzhen Institute of Advanced Technology,Chinese Academy of Sciences,Shenzhen 518055,China)

机构地区：[1]广东产品质量监督检验研究院,广州510330 [2]广东省标准化研究院,广州510220 [3]中国科学院深圳先进技术研究院,广东深圳518055

出　　处：《机电工程技术》2023年第11期279-282,共4页Mechanical & Electrical Engineering Technology

基　　金：广东省重点研发计划(2020B0404020003)。

摘　　要：压缩空气是工业领域里一种安全环保的动力源,以压缩空气为动力的气动隔离开关相对于通用的电动或手动隔离开关,具有众多突出的优点,被广泛应用于电器实验室中。介绍了现有压缩空气动力系统的能耗情况,产生能耗的主要原因,并结合电器实验室实际情况,阐述空压机的运行方式和用气设备的用气特点,与国内空压机的负荷率对比,分析存在的漏气现象及造成漏气的原因,对比空压机联机运行和变频改造两种方式的优缺点,同时描述了空压机变频调速控制技术原理。通过调整管路压力设定值、优化运行机制、增加变频空压机联机运行等节能改造措施,降低了低压空压机的加卸载和启停频率,减少了管路压力波动范围,使压缩空气泄漏量减少了80%,空压机功耗降低了70%,取得了预期的效果。Compressed air is a safe and environmentally friendly power source in the industrial field.Compared with the general electric or manual isolation switch,pneumatic isolation switch powered by compressed air has many outstanding advantages and is widely used in electrical laboratories.The energy consumption of the existing compressed air power system and the main reasons for energy consumption are introduced.Combined with the actual situation of the electric laboratory,the operation mode of the air compressor and the characteristics of the air equipment are expound.Compared the load rate of the domestic air compressor,air leakage phenomenon and the causes of air leakage are expounded.And the advantages and disadvantages of the online operation of the air compressor and the conversion transformation of the two ways are compared.The air compressor frequency conversion speed control technology principle are described.By adjusting the pipeline pressure setting value,optimizing the operation mechanism,increasing the online operation of the variable frequency air compressor and other energy-saving transformation measures,the loading and unloading and start-stop frequency of the low pressure air compressor are reduced,the pipeline pressure fluctuation range is reduced,the compressed air leakage is reduced by 80%,the power consumption of the air compressor is reduced by 70%,and the expected effect is achieved.

关 键 词：压缩空气 空压机 气体泄漏 节能改造 变频控制 联机运行 

分 类 号：TH41[机械工程—机械制造及自动化]