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In order to reduce the air and pulverized coal distribution deviation of pulverized coal system, optimize the boiler combustion condition and expand the application range of pulverized coal distributor, a new pulverized coal distributor needs to be developed. By means of test bench model test, a new type pulverized coal distributor is developed. The structural design of the distributor model is completed, and the key performance of the distribution is studied, such as the effects of the pulverized coal distributor's coal amount damper resistance characteristics, the air and pulverized coal distribution and regulating characteristics, and resistance regulation on the distribution characteristics, as well as the effect of system air speed on the distribution characteristics. The results of model test and engineering application show that, the new pulverized coal distributor can effectively control the air volume deviation of the pulverized coal delivery pipeline within ±5% and pulverized coal deviation within ±10%. After the engineering transformation and leveling test of the new pulverized coal distributor for No.3 boiler of a power plant, the thermal load deviation of furnace can be effectively reduced, and the deviation of the two metal wall temperature points, which can reach 150 ℃ before transformation, can be controlled within 15 ℃, which greatly improves the safety and reliability of the boiler operation. The development and engineering application of the new pulverized coal distributor have certain guidance and reference significance for reducing the distribution deviation of pulverized coal in pulverized coal system and solving the series of problems such as partial burning, over temperature and corrosion in boiler operation.

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为减小制粉系统风粉分配偏差,优化锅炉燃烧工况,拓展煤粉分配器的应用范围,需研制新型煤粉分配器。通过试验台模型试验的方法研发新型煤粉分配器,完成了分配器模型的结构设计,研究了新型煤粉分配器的粉量调节挡板阻力特性、风粉分配调节特性、阻力调节对分配特性的影响和系统风速对分配特性的影响等分配器关键性能。模型试验和工程应用结果表明:新型煤粉分配器能有效将送粉管道的风量偏差控制在±5%,粉量偏差控制在±10%;某电厂3号锅炉完成新型煤粉分配器工程改造及调平试验后,能有效减小炉膛热负荷偏差,可将改造前最大偏差达150 ℃的两金属壁温点的偏差控制在15 ℃内。新型煤粉分配器的研发和工程应用,对减小制粉系统风粉分配偏差、解决锅炉运行中出现的偏烧、超温、高温腐蚀等系列问题有一定的指导和借鉴意义。

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闫超(1984),男,硕士,高级工程师,主要研究方向为电站锅炉燃烧优化调整、节能降耗及改造,

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闫超(1984),男,硕士,高级工程师,主要研究方向为电站锅炉燃烧优化调整、节能降耗及改造,

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电站燃煤锅炉新型煤粉分配器的研发及应用
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闫超 1 , 廖伟辉 1 , 张锋 2, 3 , 晋中华 2, 3 , 吕兴城 1 , 翟利军 4 , 雷航 4 , 王志超 2, 3
热力发电 | 发电技术论坛 2023,52(4): 159-166
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热力发电 | 发电技术论坛 2023, 52(4): 159-166
电站燃煤锅炉新型煤粉分配器的研发及应用
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闫超1 , 廖伟辉1, 张锋2, 3, 晋中华2, 3, 吕兴城1, 翟利军4, 雷航4, 王志超2, 3
作者信息
  • 1.广东红海湾发电有限公司,广东 汕尾 516600
  • 2.西安热工研究院有限公司,陕西 西安 710054
  • 3.陕西省燃煤电站锅炉环保工程技术研究中心,陕西 西安 710054
  • 4.西安益通热工技术服务有限责任公司,陕西 西安 710032
  • 闫超(1984),男,硕士,高级工程师,主要研究方向为电站锅炉燃烧优化调整、节能降耗及改造,

Research and application of new pulverized coal distributor for power plant coal-fired boiler
Chao YAN1 , Weihui LIAO1, Feng ZHANG2, 3, Zhonghua JIN2, 3, Xingcheng LYU1, Lijun ZHAI4, Hang LEI4, Zhichao WANG2, 3
Affiliations
  • 1.Guangdong Honghaiwan Power Generation Co., Ltd., Shanwei 516600, China
  • 2.Xi'an Thermal Power Research Institute Co., Ltd., Xi'an 710054, China
  • 3.Shaanxi Engineering Research Center of Coal Fired Boiler Environmental Protection, Xi'an 710054, China
  • 4.Xi'an Yitong Thermal Technology Service Co., Ltd., Xi'an 710032, China
出版时间: 2023-04-25 doi: 10.19666/j.rlfd.202212153
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为减小制粉系统风粉分配偏差,优化锅炉燃烧工况,拓展煤粉分配器的应用范围,需研制新型煤粉分配器。通过试验台模型试验的方法研发新型煤粉分配器,完成了分配器模型的结构设计,研究了新型煤粉分配器的粉量调节挡板阻力特性、风粉分配调节特性、阻力调节对分配特性的影响和系统风速对分配特性的影响等分配器关键性能。模型试验和工程应用结果表明:新型煤粉分配器能有效将送粉管道的风量偏差控制在±5%,粉量偏差控制在±10%;某电厂3号锅炉完成新型煤粉分配器工程改造及调平试验后,能有效减小炉膛热负荷偏差,可将改造前最大偏差达150 ℃的两金属壁温点的偏差控制在15 ℃内。新型煤粉分配器的研发和工程应用,对减小制粉系统风粉分配偏差、解决锅炉运行中出现的偏烧、超温、高温腐蚀等系列问题有一定的指导和借鉴意义。

新型煤粉分配器  /  HP1003中速磨煤机  /  制粉系统改造  /  风粉分配

In order to reduce the air and pulverized coal distribution deviation of pulverized coal system, optimize the boiler combustion condition and expand the application range of pulverized coal distributor, a new pulverized coal distributor needs to be developed. By means of test bench model test, a new type pulverized coal distributor is developed. The structural design of the distributor model is completed, and the key performance of the distribution is studied, such as the effects of the pulverized coal distributor's coal amount damper resistance characteristics, the air and pulverized coal distribution and regulating characteristics, and resistance regulation on the distribution characteristics, as well as the effect of system air speed on the distribution characteristics. The results of model test and engineering application show that, the new pulverized coal distributor can effectively control the air volume deviation of the pulverized coal delivery pipeline within ±5% and pulverized coal deviation within ±10%. After the engineering transformation and leveling test of the new pulverized coal distributor for No.3 boiler of a power plant, the thermal load deviation of furnace can be effectively reduced, and the deviation of the two metal wall temperature points, which can reach 150 ℃ before transformation, can be controlled within 15 ℃, which greatly improves the safety and reliability of the boiler operation. The development and engineering application of the new pulverized coal distributor have certain guidance and reference significance for reducing the distribution deviation of pulverized coal in pulverized coal system and solving the series of problems such as partial burning, over temperature and corrosion in boiler operation.

new pulverized coal distributor  /  HP1003 medium speed pulverizer  /  reformation of pulverizing system  /  air and pulverized coal distribution
闫超, 廖伟辉, 张锋, 晋中华, 吕兴城, 翟利军, 雷航, 王志超. 电站燃煤锅炉新型煤粉分配器的研发及应用. 热力发电, 2023 , 52 (4) : 159 -166 . DOI: 10.19666/j.rlfd.202212153
Chao YAN, Weihui LIAO, Feng ZHANG, Zhonghua JIN, Xingcheng LYU, Lijun ZHAI, Hang LEI, Zhichao WANG. Research and application of new pulverized coal distributor for power plant coal-fired boiler[J]. Thermal Power Generation, 2023 , 52 (4) : 159 -166 . DOI: 10.19666/j.rlfd.202212153
  • 陕西省重点研发计划项目(2022GY-156)
2023年第52卷第4期
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doi: 10.19666/j.rlfd.202212153
  • 首发时间:2026-01-23
  • 出版时间:2023-04-25
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  • 修回日期:2022-12-13
基金
Key Research and Development Program of Shaanxi Province(2022GY-156)
陕西省重点研发计划项目(2022GY-156)
作者信息
    1.广东红海湾发电有限公司,广东 汕尾 516600
    2.西安热工研究院有限公司,陕西 西安 710054
    3.陕西省燃煤电站锅炉环保工程技术研究中心,陕西 西安 710054
    4.西安益通热工技术服务有限责任公司,陕西 西安 710032
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2种不同金属材料的力学参数

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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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