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Practical application and technical discussions of the first set of 1 000 MW domestic full-capacity feed pump unit
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Zhiyong CUI1, Weijun SHANG2, Zongwu AN3, Yonghai HU4, Fei JIANG1, Hongwei JIANG1, Yongli TANG1, Haiying WANG1, Shanshan WANG4
Thermal Power Generation | 2025, 54(12) : 150 - 156
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Thermal Power Generation | 2025, 54(12): 150-156
• Thermal energy science research •
Practical application and technical discussions of the first set of 1 000 MW domestic full-capacity feed pump unit
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Zhiyong CUI1, Weijun SHANG2, Zongwu AN3, Yonghai HU4, Fei JIANG1, Hongwei JIANG1, Yongli TANG1, Haiying WANG1, Shanshan WANG4
Affiliations
  • 1.Dalat Power Plant, Ordos 014300, China
  • 2.North United Power Co., Ltd., Hohhot 010020, China
  • 3.Xi’an Thermal Power Research Institute Co., Ltd., Xi’an 710054, China
  • 4.Shanghai Energy Equipment Co., Ltd., Shanghai 201317, China
Published: 2025-12-25 doi: 10.19666/j.rlfd.202503062
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The optimization design of the first domestically produced full-capacity feedwater pump used for No.9 unit of the Huaneng North Power Dalat Power Plant Phase V expansion project (1×1 000 MW) is introduced. The three-dimensional structural model of the feedwater pump is established by using ANSYS Workbench software, and the thermal stress analysis of the pump body and finite-element calculation of the impeller strength are conducted. Moreover, the trial operation of the turbine-driven feedwater pump unit and optimization suggestions are provided. The feedwater pump runs under various load conditions of the unit, ensuring that the feedwater flow and pump outlet pressure meet the operational requirements, with the temperature and vibration indicators of each bearing in the steam pump unit falling within the excellent range. Based on the performance assessment test data of the feedwater pump, the calculated efficiency is 84.32%, which exceeds the guaranteed efficiency value. The successful application of this domestically produced full-capacity steam feedwater pump unit in a 1 000 MW coal-fired unit can provide experience for planned or newly constructed units and has certain reference value.

feedwater pump  /  feedwater flow  /  bearing  /  domestication  /  reliability
Zhiyong CUI, Weijun SHANG, Zongwu AN, Yonghai HU, Fei JIANG, Hongwei JIANG, Yongli TANG, Haiying WANG, Shanshan WANG. Practical application and technical discussions of the first set of 1 000 MW domestic full-capacity feed pump unit[J]. Thermal Power Generation, 2025 , 54 (12) : 150 -156 . DOI: 10.19666/j.rlfd.202503062
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Year 2025 volume 54 Issue 12
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doi: 10.19666/j.rlfd.202503062
  • Receive Date：2025-03-24
  • Online Date：2026-01-13
  • Published：2025-12-25
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  • Received：2025-03-24
Affiliations
    1.Dalat Power Plant, Ordos 014300, China
    2.North United Power Co., Ltd., Hohhot 010020, China
    3.Xi’an Thermal Power Research Institute Co., Ltd., Xi’an 710054, China
    4.Shanghai Energy Equipment Co., Ltd., Shanghai 201317, China
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表12种不同金属材料的力学参数
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Number of
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Number of
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鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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