RH furnace circulation gas automatic control method

The invention relates to an automatic control method for circulating gas of an RH furnace. The control method comprises the following steps that 1, an RH information acquisition module carries out acquisition; 2, an RH state judgment module carries out judgment; and step 3, the circulation gas control module performs control. According to the technical scheme, in any state of the RH, namely from each stage of a production state to two stages of non-production, the type of the circulating gas can be automatically changed in real time, and the flow of the circulating gas can be automatically adjusted in real time. 本发明涉及一种RH炉环流气自动控制方法，所述控制方法包括以下步骤：步骤1：RH信息采集模块进行采集；步骤2：RH状态判断模块进行判断；步骤3：环流气控制模块进行控制。该技术方案可以在RH的任何状态下，即生产状态的各个阶段到非生产的两个阶段，环流气均可实时自动改变环流气种类和调节环流气流量。