西安热工研究院有限公司
纸质出版:2012
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江浩, 于新颖, 郭俊文, 等. 低β值喉部取压喷嘴在给水流量测量中的应用[J]. 热力发电, 2012,41(10):44-47.
JIANG Hao, YU Xinying, GUO Junwen, et al. ACCURACY IMPROVEMENT OF FEEDWATER FLOW MEASUREMENT BY ASME LOW β RATIO THROAT-TAP NOZZLE[J]. Thermal power generation, 2012, 41(10): 44-47.
江浩, 于新颖, 郭俊文, 等. 低β值喉部取压喷嘴在给水流量测量中的应用[J]. 热力发电, 2012,41(10):44-47. DOI:
JIANG Hao, YU Xinying, GUO Junwen, et al. ACCURACY IMPROVEMENT OF FEEDWATER FLOW MEASUREMENT BY ASME LOW β RATIO THROAT-TAP NOZZLE[J]. Thermal power generation, 2012, 41(10): 44-47. DOI:
对焊接结构的低β值喉部取压长颈喷嘴用于给水流量测量的分析表明
采用经过校验后的焊接结构低β值喉部取压长颈喷嘴测量给水流量的不确定度≤0.25%
符合ASME PTC6作为机组性能验收试验的要求
且具有宽量程、低能耗等特点。
Low β ratio throat-tap long-nozzle with welded structure was used to measure the feedwater flow.Results indicate that
measurement uncertainty of the calibrated nozzle is less or equal to 0.25%
which satisfies the ASME PTC6
namely the requirements for unit performance acceptance test.Moreover
this kind of nozzle with diffuser not only has high measuring accuracy
but also has wide range and low energy consumption.
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