Experimental Studies on the Influence of Soot Blowing on the Overheating of Water Wall Pipes under Low Loads in Supercritical Boilers
In this paper, through the experimental studies on the installation location, operation frequency, time period of load section and corresponding wind distribution mode of the soot blowers under low loads, it is observed that the sudden rise of wall temperature mainly occurs on the two side walls dur...
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| Format: | Article |
| Language: | zho |
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State Grid Energy Research Institute
2020-11-01
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| Series: | Zhongguo dianli |
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| Online Access: | https://www.electricpower.com.cn/CN/10.11930/j.issn.1004-9649.202003111 |
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| author | Yang WANG Xiaoxin ZHU Ming CHEN Huajian WANG Fan FANG Weijian ZHU |
| author_facet | Yang WANG Xiaoxin ZHU Ming CHEN Huajian WANG Fan FANG Weijian ZHU |
| author_sort | Yang WANG |
| collection | DOAJ |
| description | In this paper, through the experimental studies on the installation location, operation frequency, time period of load section and corresponding wind distribution mode of the soot blowers under low loads, it is observed that the sudden rise of wall temperature mainly occurs on the two side walls during soot blowing under low loads, and particularly the ash blowers above and under the overfire air port have substantial effects with the maximum temperature surge amplitude of about 100~130 °C. In the process of ash blowing, with the auxiliary air volume increased by about 20% in the corresponding area, the temperature surge amplitude can be reduced by about 20 °C. At the same time, choosing the time section of higher load for soot blowing and reducing the operation frequency of the soot-blowers are also helpful for the control of the water wall overheating. The experimental research method and conclusions have appeared to have certain referential significance to the soot-blower operation of units with the same type under low load conditions. |
| format | Article |
| id | doaj-art-df33a576ba2c40f7b4496c895d37cd63 |
| institution | DOAJ |
| issn | 1004-9649 |
| language | zho |
| publishDate | 2020-11-01 |
| publisher | State Grid Energy Research Institute |
| record_format | Article |
| series | Zhongguo dianli |
| spelling | doaj-art-df33a576ba2c40f7b4496c895d37cd632025-08-20T02:52:43ZzhoState Grid Energy Research InstituteZhongguo dianli1004-96492020-11-01531122723310.11930/j.issn.1004-9649.202003111zgdl-53-8-wangyangExperimental Studies on the Influence of Soot Blowing on the Overheating of Water Wall Pipes under Low Loads in Supercritical BoilersYang WANG0Xiaoxin ZHU1Ming CHEN2Huajian WANG3Fan FANG4Weijian ZHU5Xi'an Thermal Power Research Institute Co., Ltd., Xi'an 710054, ChinaXi'an Thermal Power Research Institute Co., Ltd., Xi'an 710054, ChinaShenzhen Energy Hopewell Power (Heyuan) Co., Ltd., Heyuan 517000, ChinaXi'an Thermal Power Research Institute Co., Ltd., Xi'an 710054, ChinaXi'an Thermal Power Research Institute Co., Ltd., Xi'an 710054, ChinaXi'an Thermal Power Research Institute Co., Ltd., Xi'an 710054, ChinaIn this paper, through the experimental studies on the installation location, operation frequency, time period of load section and corresponding wind distribution mode of the soot blowers under low loads, it is observed that the sudden rise of wall temperature mainly occurs on the two side walls during soot blowing under low loads, and particularly the ash blowers above and under the overfire air port have substantial effects with the maximum temperature surge amplitude of about 100~130 °C. In the process of ash blowing, with the auxiliary air volume increased by about 20% in the corresponding area, the temperature surge amplitude can be reduced by about 20 °C. At the same time, choosing the time section of higher load for soot blowing and reducing the operation frequency of the soot-blowers are also helpful for the control of the water wall overheating. The experimental research method and conclusions have appeared to have certain referential significance to the soot-blower operation of units with the same type under low load conditions.https://www.electricpower.com.cn/CN/10.11930/j.issn.1004-9649.202003111supercritical boilersoot blowingwater wallovertemperaturelow load |
| spellingShingle | Yang WANG Xiaoxin ZHU Ming CHEN Huajian WANG Fan FANG Weijian ZHU Experimental Studies on the Influence of Soot Blowing on the Overheating of Water Wall Pipes under Low Loads in Supercritical Boilers Zhongguo dianli supercritical boiler soot blowing water wall overtemperature low load |
| title | Experimental Studies on the Influence of Soot Blowing on the Overheating of Water Wall Pipes under Low Loads in Supercritical Boilers |
| title_full | Experimental Studies on the Influence of Soot Blowing on the Overheating of Water Wall Pipes under Low Loads in Supercritical Boilers |
| title_fullStr | Experimental Studies on the Influence of Soot Blowing on the Overheating of Water Wall Pipes under Low Loads in Supercritical Boilers |
| title_full_unstemmed | Experimental Studies on the Influence of Soot Blowing on the Overheating of Water Wall Pipes under Low Loads in Supercritical Boilers |
| title_short | Experimental Studies on the Influence of Soot Blowing on the Overheating of Water Wall Pipes under Low Loads in Supercritical Boilers |
| title_sort | experimental studies on the influence of soot blowing on the overheating of water wall pipes under low loads in supercritical boilers |
| topic | supercritical boiler soot blowing water wall overtemperature low load |
| url | https://www.electricpower.com.cn/CN/10.11930/j.issn.1004-9649.202003111 |
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