Normal analysis of coal quality test data for boilers

LIU Fuguo; WANG Shouen; CUI Fuxing; NIU Zhuolun

doi:10.19666/j.rlfd.201710150

English Version Reader LoginJournal Login

您当前的位置：

首页 >

文章列表页 >

Normal analysis of coal quality test data for boilers

更新时间：2025-09-28

- Normal analysis of coal quality test data for boilers
- Thermal Power Generation Vol. 47, Issue 7, Pages: 34-39(2018)
- 作者机构：
  
  1. 国网山东省电力公司电力科学研究院
  2. 西安交通大学能源与动力工程学院
- 作者简介：
- 基金信息：
- DOI：10.19666/j.rlfd.201710150
  CLC： TK16
- Published Online：04 July 2018，
  
  Published：2018
- 稿件说明：
移动端阅览
LIU Fuguo, WANG Shouen, CUI Fuxing, et al. Normal analysis of coal quality test data for boilers[J]. Thermal power generation, 2018, 47(7): 34-39.
DOI：

LIU Fuguo, WANG Shouen, CUI Fuxing, et al. Normal analysis of coal quality test data for boilers[J]. Thermal power generation, 2018, 47(7): 34-39. DOI： 10.19666/j.rlfd.201710150.

摘要

锅炉掺烧不同品种的煤使炉前煤质检测数据不能准确表征原始掺配煤种的变化

并引起炉前采样样品收到基低位发热量波动增大

给运行调整和常规煤耗检测带来困难。本文对6个电厂17台锅炉入炉煤发热量的日常检测数据进行了正态性检验

发现在掺配煤的种类和数量稳定

且掺配方案不变的情况下

炉前煤质混合样品发热量数据呈正态分布

发热量数据从正态分布向非正态分布的转变通常意味着掺配方案或原始煤种的变化

据此可实现对原始掺配煤种或掺配方案变化的识别。此外

炉前混煤样品发热量均值和标准差是机组供电煤耗不确定度分析的基础

据此可定量分析发热量分散性对供电煤耗的影响。

Abstract

Blending with different types of coal makes the coal quality test data inaccurately characterize the changes of the original blended coal type. It causes the increase in fluctuations of net calorific value as received basis

which makes it difficult for the operation adjustment and routine coal consumption rate test. In this study

the normal test of the daily test data of the coal calorific value of 17 boilers in 6 power plants is carried out. The results show that

the calorific value of the blended coal shows a normal distribution under the condition that the type and quantity of blended coal are stable and the blending scheme remains unchange. The change of the calorific value data from normal distribution to non-normal distribution usually implies the change of the blending scheme or the original coal type

whereby the change of original blended coal type or blending scheme can be distinguished. In addition

the mean value and standard deviation of the calorific value of the blended coal are the basis of the uncertainty analysis of the coal consumption rate of the unit. In the light of this

the influence of the calorific value dispersion on the coal consumption rate of power supply can be quantitatively analyzed.

关键词

Keywords

references

Views

177

下载量

CSCD

Alert me when the article has been cited

提交

Tools

Publicity Resources

ANALYSIS OF UNCERTAINTY FOR THERMAL EFFICIENCY OF UTILITY BOILERS

CALCULATION METHOD FOR THERMAL EFFICIENCY OF BOILERS BASED ON THE WEIGHTED LEAST SQUARE PRINCIPLE

ECONOMIC STUDY ON ADDING LOW-TEMPERATURE ECONOMIZER ON A 320 MW UNIT

Application of uncertainty principle in boiler thermal efficiency test

Monitoring model for fired coal quality in utility boilers based on flue gas components

Related Author

YANG Tao1

JU Lin-cang2

WU Sheng-lai11.Xi’an Thermal Power Research Institute Co Ltd

MA Jinfeng1

WANG Wei2

XU Youning1

WANG Shuqun1

DING Yong3

Related Institution

Xi'an Thermal Power Research Institute Co., Ltd

Xi'an Jiaotong University

Department of Energy and Power Engineering, Shenyang Institute of Technology

School of Materials and Metallurgy, Northeastern University

Zhejiang Guohua Zhejiang Energy Generation Co., Ltd

AI问答

⁰