论文部分内容阅读
调速系统是汽轮机中重要机件之一,它保证机组在设计允许的各种运行方式下维持稳定的运行,当运行方式变换时又能使机组平稳过渡。当汽轮机由于外来因素突然甩除负荷时,它应保证机组不发生超速危险。我厂装有这种液压调运系统的31-12-2型汽轮机,从几个电厂的运行情况以及最近某厂所作的调整试验结果看来,调速系统的性能是比较良好的,如迟缓率小于0.4％、负荷一般摆动仅200～300瓩、在甩除全负荷时最大动态升速为3180转/分,而稳定后转速为
The speed control system is one of the important components in the steam turbine. It ensures that the unit can maintain stable operation under various operating modes allowed by the design, and can make the unit smoothly transition when the operating mode is changed. When the turbine abruptly rejects the load due to external factors, it should ensure that the unit does not risk overspeeding. Our 31-12-2 steam turbine equipped with this type of hydraulic transport system shows that the performance of the speed control system is relatively good, such as the rate of delay, from the operation of several power plants and the results of recent adjustment tests performed by a certain plant. Less than 0.4%, general swing of load is only 200-300 瓩, maximum dynamic speed is 3180 rpm when full load is dumped, and stable speed is