Diagnosis on Failure of Dynamic Warping of Circulating Water Pump's Mirror Plate and Discussion on Vibration Evaluation
The unstable vibration on the 2nd harmonic has been existing in the pump-motor system, and the way to cool the motor has a significant effect on its vibration characteristics. Therefore, the field testing for this fault has been taken to diagnose and verify the failure of dynamic mirror plate warpin...
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| Format: | Article |
| Language: | zho |
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State Grid Energy Research Institute
2019-02-01
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| Series: | Zhongguo dianli |
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| Online Access: | https://www.electricpower.com.cn/CN/10.11930/j.issn.1004-9649.201806017 |
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| author | Chu ZHANG Yi YANG GE JIN Shi LIU Qingshui GAO |
| author_facet | Chu ZHANG Yi YANG GE JIN Shi LIU Qingshui GAO |
| author_sort | Chu ZHANG |
| collection | DOAJ |
| description | The unstable vibration on the 2nd harmonic has been existing in the pump-motor system, and the way to cool the motor has a significant effect on its vibration characteristics. Therefore, the field testing for this fault has been taken to diagnose and verify the failure of dynamic mirror plate warping of the motor under certain conditions. The analysis on the mechanism of the mirror warping failure concludes that it is the axial misalignment that leads to double frequency vibration. The concentration of the axial misalignment determines the dominant frequency of the operating equipment. The low-frequency vibration signal is amplified into the vibration displacement during the integration of the vibration velocity. At the end, it is suggested that the vibration velocity should be used to evaluate the vibration of the non-rotating parts of the low-speed equipment. |
| format | Article |
| id | doaj-art-13d33fcbca7742e1a825cfc6c00dc10f |
| institution | DOAJ |
| issn | 1004-9649 |
| language | zho |
| publishDate | 2019-02-01 |
| publisher | State Grid Energy Research Institute |
| record_format | Article |
| series | Zhongguo dianli |
| spelling | doaj-art-13d33fcbca7742e1a825cfc6c00dc10f2025-08-20T02:56:58ZzhoState Grid Energy Research InstituteZhongguo dianli1004-96492019-02-0152214414810.11930/j.issn.1004-9649.201806017zgdl-52-2-zhangchuDiagnosis on Failure of Dynamic Warping of Circulating Water Pump's Mirror Plate and Discussion on Vibration EvaluationChu ZHANG0Yi YANG1GE JIN2Shi LIU3Qingshui GAO4Electric Power Research Institute of Guangdong Power Grid Co., Ltd., Guangzhou 510080, ChinaElectric Power Research Institute of Guangdong Power Grid Co., Ltd., Guangzhou 510080, ChinaElectric Power Research Institute of Guangdong Power Grid Co., Ltd., Guangzhou 510080, ChinaElectric Power Research Institute of Guangdong Power Grid Co., Ltd., Guangzhou 510080, ChinaElectric Power Research Institute of Guangdong Power Grid Co., Ltd., Guangzhou 510080, ChinaThe unstable vibration on the 2nd harmonic has been existing in the pump-motor system, and the way to cool the motor has a significant effect on its vibration characteristics. Therefore, the field testing for this fault has been taken to diagnose and verify the failure of dynamic mirror plate warping of the motor under certain conditions. The analysis on the mechanism of the mirror warping failure concludes that it is the axial misalignment that leads to double frequency vibration. The concentration of the axial misalignment determines the dominant frequency of the operating equipment. The low-frequency vibration signal is amplified into the vibration displacement during the integration of the vibration velocity. At the end, it is suggested that the vibration velocity should be used to evaluate the vibration of the non-rotating parts of the low-speed equipment.https://www.electricpower.com.cn/CN/10.11930/j.issn.1004-9649.201806017thermal power plantcirculating water pumpmultiples of vibrationmirror plate warpingaxis misalignmentevaluation standard |
| spellingShingle | Chu ZHANG Yi YANG GE JIN Shi LIU Qingshui GAO Diagnosis on Failure of Dynamic Warping of Circulating Water Pump's Mirror Plate and Discussion on Vibration Evaluation Zhongguo dianli thermal power plant circulating water pump multiples of vibration mirror plate warping axis misalignment evaluation standard |
| title | Diagnosis on Failure of Dynamic Warping of Circulating Water Pump's Mirror Plate and Discussion on Vibration Evaluation |
| title_full | Diagnosis on Failure of Dynamic Warping of Circulating Water Pump's Mirror Plate and Discussion on Vibration Evaluation |
| title_fullStr | Diagnosis on Failure of Dynamic Warping of Circulating Water Pump's Mirror Plate and Discussion on Vibration Evaluation |
| title_full_unstemmed | Diagnosis on Failure of Dynamic Warping of Circulating Water Pump's Mirror Plate and Discussion on Vibration Evaluation |
| title_short | Diagnosis on Failure of Dynamic Warping of Circulating Water Pump's Mirror Plate and Discussion on Vibration Evaluation |
| title_sort | diagnosis on failure of dynamic warping of circulating water pump s mirror plate and discussion on vibration evaluation |
| topic | thermal power plant circulating water pump multiples of vibration mirror plate warping axis misalignment evaluation standard |
| url | https://www.electricpower.com.cn/CN/10.11930/j.issn.1004-9649.201806017 |
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