Study on Water Erosion in Deep Peak Shaving of Steam Turbine
In order to improve the life of the unit, and study the water erosion of the last stage moving blade caused by the deep peak shaving of steam turbine, this paper established a method to measure the water erosion of blade based on relative volumetric flow. The calculation analysis with operating expe...
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| Format: | Article |
| Language: | English |
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Editorial Department of Power Generation Technology
2021-08-01
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| Series: | 发电技术 |
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| Online Access: | https://www.pgtjournal.com/EN/10.12096/j.2096-4528.pgt.21012 |
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| author | Yunfeng LIU Yufeng LI Jian WANG Yiliang MA Chun GUAN |
| author_facet | Yunfeng LIU Yufeng LI Jian WANG Yiliang MA Chun GUAN |
| author_sort | Yunfeng LIU |
| collection | DOAJ |
| description | In order to improve the life of the unit, and study the water erosion of the last stage moving blade caused by the deep peak shaving of steam turbine, this paper established a method to measure the water erosion of blade based on relative volumetric flow. The calculation analysis with operating experiences of the unit was employed. The influence of back pressure and load on water erosion comprehensively was taken into account. The results show that, with the decrease of relative volumetric flow rate, the water erosion part of the rotor blade is transferred from the top steam inlet side with lower stress to the root steam outlet side with higher stress. It results in the increase of risk. With the decrease of relative volume flow, the water erosion rate of moving blade shows three stages: first increasing, then decreasing, and rising finally. The turning point between stages corresponds to a balanced state. |
| format | Article |
| id | doaj-art-73edcf147efa4ceeaa101091e72d7d48 |
| institution | DOAJ |
| issn | 2096-4528 |
| language | English |
| publishDate | 2021-08-01 |
| publisher | Editorial Department of Power Generation Technology |
| record_format | Article |
| series | 发电技术 |
| spelling | doaj-art-73edcf147efa4ceeaa101091e72d7d482025-08-20T02:49:50ZengEditorial Department of Power Generation Technology发电技术2096-45282021-08-0142447347910.12096/j.2096-4528.pgt.21012fdjs-42-4-473Study on Water Erosion in Deep Peak Shaving of Steam TurbineYunfeng LIU0Yufeng LI1Jian WANG2Yiliang MA3Chun GUAN4Harbin Turbine Co., Ltd., Harbin 150046, Heilongjiang Province, ChinaHarbin Turbine Co., Ltd., Harbin 150046, Heilongjiang Province, ChinaHarbin Turbine Co., Ltd., Harbin 150046, Heilongjiang Province, ChinaHarbin Turbine Co., Ltd., Harbin 150046, Heilongjiang Province, ChinaHarbin Turbine Co., Ltd., Harbin 150046, Heilongjiang Province, ChinaIn order to improve the life of the unit, and study the water erosion of the last stage moving blade caused by the deep peak shaving of steam turbine, this paper established a method to measure the water erosion of blade based on relative volumetric flow. The calculation analysis with operating experiences of the unit was employed. The influence of back pressure and load on water erosion comprehensively was taken into account. The results show that, with the decrease of relative volumetric flow rate, the water erosion part of the rotor blade is transferred from the top steam inlet side with lower stress to the root steam outlet side with higher stress. It results in the increase of risk. With the decrease of relative volume flow, the water erosion rate of moving blade shows three stages: first increasing, then decreasing, and rising finally. The turning point between stages corresponds to a balanced state.https://www.pgtjournal.com/EN/10.12096/j.2096-4528.pgt.21012steam turbinedeep peak shavingwater erosion of blade |
| spellingShingle | Yunfeng LIU Yufeng LI Jian WANG Yiliang MA Chun GUAN Study on Water Erosion in Deep Peak Shaving of Steam Turbine 发电技术 steam turbine deep peak shaving water erosion of blade |
| title | Study on Water Erosion in Deep Peak Shaving of Steam Turbine |
| title_full | Study on Water Erosion in Deep Peak Shaving of Steam Turbine |
| title_fullStr | Study on Water Erosion in Deep Peak Shaving of Steam Turbine |
| title_full_unstemmed | Study on Water Erosion in Deep Peak Shaving of Steam Turbine |
| title_short | Study on Water Erosion in Deep Peak Shaving of Steam Turbine |
| title_sort | study on water erosion in deep peak shaving of steam turbine |
| topic | steam turbine deep peak shaving water erosion of blade |
| url | https://www.pgtjournal.com/EN/10.12096/j.2096-4528.pgt.21012 |
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