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针对高炉煤气供应系统用户端用气量急剧变化而影响高炉煤气管网运行安全的问题。依据某高炉煤气管网的实际运行工况,建立了模拟煤气管网系统发生事故状况下管内压力和流量变化的实验系统。整个实验模拟过程由实验台和数据采集系统完成,实验气源为空压机压缩储存的压缩空气,管网由一根主干管段和一个环管组成。在实验工况下,采用流量计、差压计对处于主管道及环管道上的关键点进行实时测量,通过数据采集系统得到管路系统上的关键量变化值,从而确定管道内气体的流量变化。研究结果表明:该实验系统产生的瞬时稳态流动可以很好地模拟因非管元件状态改变而产生的事故工况,对指导实际管道的安全运行有较大帮助。(图8,参10)
In view of the blast furnace gas supply system user end gas consumption changes dramatically affect the operation of blast furnace gas pipe network security issues. Based on the actual operating conditions of a blast furnace gas pipe network, an experimental system was established to simulate the pressure and flow changes in the pipe under the accident conditions of the gas pipe network system. The entire experimental simulation process is completed by a test bed and data acquisition system. The experimental air source is compressed air compressed by an air compressor. The pipe network consists of a main pipe section and a loop pipe. Under the experimental conditions, the flowmeter and differential pressure gauge are used to measure the key points in the main pipeline and the loop pipeline in real time, and the critical value of the pipeline system is obtained through the data acquisition system to determine the gas flow in the pipeline Variety. The results show that the instantaneous steady-state flow generated by the experimental system can well simulate the accident conditions caused by the change of the state of non-tube components, which is helpful to guide the safe operation of the actual pipeline. (Figure 8, reference 10)