TEST STUDY ON CONTROLLING HEAT DEVIATION IN UTILITY BOILERS BY USING JET-FLOW READJUSTING METHOD

LIU Xin-zhi1; LI He1; ZHU Shu-guang1; JING Xiao-lei21.College of Power

doi:10.19666/j.rlfd.2008.09.008

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TEST STUDY ON CONTROLLING HEAT DEVIATION IN UTILITY BOILERS BY USING JET-FLOW READJUSTING METHOD

更新时间：2025-09-28

- TEST STUDY ON CONTROLLING HEAT DEVIATION IN UTILITY BOILERS BY USING JET-FLOW READJUSTING METHOD
- Thermal Power Generation Issue 9, Pages: 28-31(2008)
- 作者机构：
  
  1. 南京理工大学动力学院
  2. 西安热工研究院有限公司
- 作者简介：
- 基金信息：
- DOI：10.19666/j.rlfd.2008.09.008
  CLC： TK229.6
- Published：2008
- 稿件说明：
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LIU Xin-zhi1, LI He1, ZHU Shu-guang1, et al. TEST STUDY ON CONTROLLING HEAT DEVIATION IN UTILITY BOILERS BY USING JET-FLOW READJUSTING METHOD[J]. Thermal power generation, 2008, (9): 28-31.
DOI：

LIU Xin-zhi1, LI He1, ZHU Shu-guang1, et al. TEST STUDY ON CONTROLLING HEAT DEVIATION IN UTILITY BOILERS BY USING JET-FLOW READJUSTING METHOD[J]. Thermal power generation, 2008, (9): 28-31. DOI： 10.19666/j.rlfd.2008.09.008.

摘要

为消除切圆燃烧锅炉炉膛出口处残余旋转

进而削弱烟道气流速度偏差和热力偏差

提出一种采用射流整流来控制水平烟道内过热器热偏差的方法。通过对水平烟道入口的速度测量及过热器热偏差分布试验得出

过热器热偏差分布与水平烟道入口气流速度偏差分布趋势一致。试验结果表明:加入射流系统后过热器热偏差系数比未加入射流系统时明显减小

达到了控制水平烟道内热偏差的目的

大大减少了过热器、再热器爆管事故。

Abstract

In order to eliminate residual swirling at outlet of the furnace in tangential firing boiler

so as to weaken the velocity deviation and the thermal deviation of gas flow in the flue duct

a method of controlling heat deviation of superheater inside the horizontal flue duct by using jet-flow readjustment has been put forward.Through measurement of velocity at inlet of the horizontal flue duct and test of heat deviation distrivution in the superheater

an identical trend of heat deviation distribution in the superheater and gas flow velocity deviation at inlet of the horizontal flue duct has been obtained.Results of test show that the heat deviation coefficient in superheater after installing the jet-flow system has been remarkably reduced from that before installing the jet-flow system

realizing the purpose of controlling the heat deviation in horizontal flue duct

decreasing greatly the failures of tube-burst.

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