摘要
远程控制终端阀室大多位置偏僻,特别是我国西部,昼夜温差较大,经常造成RTU阀室冬季温度过低。主要原因是阀室内没有足够热量,仅靠设备运行产生的热量,不足以维持PLC控制柜的最低运行温度,因此需要使用外供热源。在PLC控制柜底部安装两片30W加热片,RTU阀室温度明显提升,PLC控制柜内的温度由0℃左右提升至6℃。若将加热片数量增至10片,控制室的温度可以恒定在10℃,从而可以彻底消除PLC在低温下工作效率低、甚至停止工作的风险。
Remote terminal unit （RTU） valve chambers are mostly located in remote areas, especially China＇s western region, where relatively large day-night temperature differences often result in an excessively low temperature of RTU valve chambers in winter, mainly because there is not enough heat in the valve chamber and the heat generated by the equipment operation alone is insufficient to maintain the minimum operating temperature of the PLC control cabinet. Therefore, an external heat supply is needed. After two 30 W heating plates are installed on the bottom of the PLC control cabinet, the RTU valve chamber temperature can improve significantly and the PLC control cabinet temperature can increase from 0 ℃ to 6℃. If the number of heating plates is increased to 10, the temperature of the control room will be kept at a constant temperature, say 10 ℃, thus completely eliminating common risks of the PLC being at low temperatures such as low working efficiency and even stopping. （2 Figures, 3 References）
出处
《油气储运》
CAS
2013年第1期95-96,共2页
Oil & Gas Storage and Transportation
关键词
RTU阀室
冬季
运行现状
加热片
RTU valve chamber, winter, running status, heating plate
