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介绍了该商厦空调水系统变频节能改造的全过程,包括空调水系统运行情况的调研、变频器数量的确定、温差和压差两种控制方式的比选、控制目标简述、节能量分析等环节。通过采取一系列技术措施,解决了水系统平衡失调、制冷机组管路旁通、水泵输送能耗过高等问题,改善了商厦内的环境状况。通过实测推算出节能量估算方法,代入2008年同期数据估算得出该商厦空调水系统年节能量可达56.5万kW.h,与改造后电表实际计量结果接近。
This paper introduces the whole process of frequency conversion energy-saving retrofit of air-condition water system in commercial buildings, including the investigation of the operation of air-condition water system, the determination of the number of inverters, the comparison and selection of two control methods of temperature difference and pressure difference, Links. Through a series of technical measures to solve the balance of the water system imbalance, the bypass of the refrigeration unit piping, pump energy consumption and other issues too high to improve the commercial environment within the environment. Estimate the energy-saving estimation method through measurement, and substitute into the data of the same period in 2008 to estimate that the annual energy-saving capacity of the commercial air-conditioning water system can reach 565,000 kW.h, which is close to the actual measurement result after the transformation.