[1]徐文辉,董春雷,郭 勇,等.一种基于料位计的燃煤电厂分仓计量方法[J].南京师范大学学报(工程技术版),2024,24(01):026-31.[doi:10.3969/j.issn.1672-1292.2024.01.004]
　Xu Wenhui,Dong Chunlei,Guo Yong,et al.A Method of Calculating the Coal Quantity in the Coal Bunker Based on the Level Meter[J].Journal of Nanjing Normal University(Engineering and Technology),2024,24(01):026-31.[doi:10.3969/j.issn.1672-1292.2024.01.004]
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一种基于料位计的燃煤电厂分仓计量方法
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南京师范大学学报（工程技术版）[ISSN:1006-6977/CN:61-1281/TN]

卷:
24卷
期数:
2024年01期
页码:
026-31
栏目:
动力工程及工程热物理
出版日期:
2024-03-15

文章信息/Info

Title:
A Method of Calculating the Coal Quantity in the Coal Bunker Based on the Level Meter
文章编号:
1672-1292(2024)01-0026-06
作者:
徐文辉1; 董春雷1; 郭 勇1; 赵德虎1; 陈长和1; 仇永裕1; 杨 勇1; 李济君1; 张 进2
(1.浙江浙能温州发电有限公司,浙江 温州 325000)
(2.南京工程学院能源研究院,江苏 南京 211167)
Author(s):
Xu Wenhui1; Dong Chunlei1; Guo Yong1; Zhao Dehu1; Chen Changhe1; Qiu Yongyu1; Yang Yong1; Li Jijun1; Zhang Jin2
(1.Zhejiang Zheneng Wenzhou Power Generation Co.,Ltd,Wenzhou 325000,China)
(2.Energy Research Institute,Nanjing Institute of Technology,Nanjing 211167,China)
关键词:
料位计; 煤仓; 分仓计量
Keywords:
level meter; coal bunker; coal quantity
分类号:
O643; X703
DOI:
10.3969/j.issn.1672-1292.2024.01.004
文献标志码:
A
摘要:
分仓计量是锅炉性能计算的重要依据,也可以为燃烧策略的确定提供指导依据. 提出了一种基于料位计读数的燃煤电厂分仓计量方法. 为了避免料位计读数的影响,利用加煤偏差值和停止加煤偏差值对料位计读数进行处理,从而获取料位计的峰谷值,在此基础上利用线性拟合来获取料位计读数随时间的变化,继而利用料位计读数来计算存煤体积. 结果表明,在满足给煤量恒定以及煤仓未加煤这两个条件时,短时间内存煤体积基本随时间线下下降. 本文利用存煤体积的变化趋势,结合给煤量便可获取煤的堆积密度. 通过改变给煤量来获取不同工况,并以此验证堆积密度计算方法的可行性. 通过煤堆的堆积密度,便可获取当前煤场内存煤量,结合煤仓给煤量的累计值便可获取煤仓的加煤量. 本文所提出的分仓计量方法,避免了煤流速度不准确、皮带打滑、犁煤器漏煤等因素的影响,同时也避免了皮带秤的累计误差,有助于煤仓煤量的准确计量.
Abstract:
The coal quantity in the coal bunker is an important factor used for calculating boiler performance and can also provide guidance for optimizing combustion strategies. In this paper,a new method of calculating the coal quantity in the coal bunker based on the level meter is proposed. In order to avoid the influence of error of the level meter,the linear fitting is used to obtain the relationship between the level meter and the time. The relationship between the level meter and the time is used to calculate the coal quantity. The results show that the coal volume decreases linearly with the time when coal feed rate is constant. The bulk density of coal can be obtained by the change trend of the coal volume and the coal feed rate. Different operating conditions are obtained by changing the coal feed rate,these operating conditions are used to verify the feasibility of the bulk density calculation method. The coal quantity is obtained by the bulk density of coal and the coal volume calculated by the level meter value,then the quantity of the coal added in the coal bunker can be obtained. The new method of calculating the coal quantity in the coal bunker propsed can eliminate errors caused by the inaccurate coal flow speed,belt slippage,coal leakage from the coal plough,and the cumulative error of the belt scale. In another word,the new method can help to accurately measure the coal quantity in the bunker.

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备注/Memo

备注/Memo:
收稿日期:2023-02-02.
基金项目:江苏省自然科学基金项目(BK20190705).
通讯作者:徐文辉,工程师,研究方向:从事电厂设备自动化管理及技术监督管理工作. E-mail:975314661@qq.com
更新日期/Last Update: 2024-03-15