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超声波防除垢技术是利用换能器将电能转化成具有一定频率的超声波,利用超声波“空化作用”实现防垢作用,利用“机械振动作用”实现除垢效果。油田常用的四合一和加热炉在使用过程中因蒸发浓缩等原因,在炉壁和加热盘管内外壁上形成沉积污垢,在影响传热效果的同时,也增加了设备维护费用,给安全生产带来隐患,故引入超声波防除垢技术。对9台加热炉安装超声波防除垢装置前后的节能指标进行跟踪评价:安装超声波防除垢装置前,只有3台加热炉各项指标全部合格,平均运行效率为79.87%,平均过剩空气系数为1.78,平均排烟温度209.22℃,平均表面温度为29.38℃;安装超声波防除垢装置后,有8台加热炉各项指标全部合格,平均运行效率为84.24%,平均过剩空气系数为1.42,平均排烟温度186.44℃,平均表面温度为30.32℃,节能效果显著。
Ultrasonic anti-scaling technology is the use of transducers to convert electrical energy into a certain frequency of ultrasonic waves, the use of ultrasonic “cavitation” to achieve anti-scaling effect, the use of “mechanical vibration” to achieve descaling effect. Commonly used in the oil field and heating furnace in the course of the process of evaporation and other reasons, the furnace wall and the heating coil to form the deposition of dirt inside and outside the wall, while affecting the heat transfer effect, but also increased equipment maintenance costs for safe production Bring hidden trouble, so the introduction of ultrasonic anti-scaling technology. Before and after installation of ultrasonic anti-scaling device on 9 furnaces, the energy-saving indexes were tracked and evaluated. Before installing ultrasonic anti-scaling devices, only 3 sets of heating furnaces were all qualified, with an average operating efficiency of 79.87% and an average excess air coefficient of 1.78. The average exhaust temperature was 209.22 ℃ and the average surface temperature was 29.38 ℃. After installing the ultrasonic anti-scaling device, all the indexes of eight heating furnaces were qualified. The average operating efficiency was 84.24%, the average excess air coefficient was 1.42, the average exhaust temperature 186.44 ℃, the average surface temperature of 30.32 ℃, energy-saving effect is remarkable.