大型燃气—蒸汽联合循环机组性能试验标准的选择和应用

Selection and application of performance test standards for large size gas and steam combined cycle units

燃机—蒸汽联合循环机组性能考核的试验中,试验标准的选择十分重要。介绍了ASMEPTC46、ISO2314:1989/AMD1和DL/T851三种试验标准,从试验目的、适用范围、试验程序要求、试验结果计算与修正,以及测量不确定度方面着重对前两种标准进行了分析比较,并结合实际燃机工程的性能试验实施,介绍了标准具体应用中的一些经验,供大型联合循环机组性能验收工作参考。

During the performance check test of the gas and steam combined cycle generating unit, the selection of the test standards is a very important step. Three kinds of test standards namely ASME PTC 46, ISO 2314：1989/AMDI and DL/ T 851 are recommended. The analysis and commparison are focused upon the first two standards in the aspects of the test purposes, scope of suitability, test procedure requirements, the calculation and the correction of the test results, and the degree of the measurement uncertainty. Some experiences gained from the concrete application of the standards to the performance test practices of the actual gas turbine projects are recommended for reference which may prove useful to those engaged in the performance acceptance work of large size combined cycle generating units.