新型户外变频控制器保温柜

A new type thermal insulation cabinet of outdoor frequency conversion controller

针对风能、太阳能提水设备变频控制器冬季供水易冻损的情况,通过保温柜原理、技术、结构的分析,完成了户外变频控制器保温柜的设计,开发新型户外变频控制器保温柜.利用模型模拟及试验验证的方法,分析保温柜的保温效果,并进行试验分析研究.研究显示,自限温伴热带长度与环境温度的线性模型为L=-0. 062T_∞+0. 65,标准差为0. 804,精度较高,确定保温柜理想加热模式是自限温伴热带长度为2. 2 m,加热时间为25 min.分析显示,保温柜利用自限温伴热带可有效提高柜内温度,保障控制器的正常启闭,具有较好的实际应用效果,对提高风能、太阳能提水设备在高、寒、荒偏远地区冬季的供水保证率具有重要意义.

Through the analysis of the principle,technology and structure of the insulation cabinet,the design of the insulation cabinet of the outdoor frequency conversion controller was completed,which solved the problem that the frequency conversion controller of the wind and solar water pumping equipment was easy to freeze in winter. In the development of a new type outdoor frequency conversion controller insulation cabinet,its thermal insulation effect was analyzed by means of model simulation and test verification,and the experimental analysis was made. The results show that the linear model of the length of self-limiting temperature tracing tropical zone the ambient temperature is L =-0. 062 T∞+0. 65,the standard deviation is 0. 804,and the precision is high. The ideal heating mode of the insulation cabinet is determined to be the length of the self-limiting temperature tracing tropical zone of 2. 2 m and the heating time of 25 minutes. The analysis shows that the self-limiting temperature tracing tropical zone used in the insulation cabinet can effectively improve the temperature inside the cabinet and ensure the normal opening and closing of the controller,which has better practical application effect. As a result,it is of great significance to improve the water-supply guarantee rate of wind energy and solar energy water-supply equipment in winter in high,cold and remote areas.