PROBLEM AND ITS ANALYSIS WITH APPLICATION OF DIMETHYL KETOXIME DEOXIDIZING AGNET ON A 410 t/h HP BOILER[J]. Thermal power generation, 2000, (6): 57-59.
PROBLEM AND ITS ANALYSIS WITH APPLICATION OF DIMETHYL KETOXIME DEOXIDIZING AGNET ON A 410 t/h HP BOILER[J]. Thermal power generation, 2000, (6): 57-59. DOI: 10.19666/j.rlfd.2000.06.018.
大武口电厂410t/h高压锅炉使用二甲基酮肟除氧剂出现的问题及分析
摘要
宁夏大武口发电厂将二甲基酮肟 (DMKO)作为除氧剂
用于四台高压锅炉的给水除氧。经两年多的工业试验表明
其虽有除氧效果
但可导致高压锅炉结垢速度加快
汽轮机叶片发黄
给水铜合格率下降等不良现象
未见比N2 H4 优异
现已停止使用。自停用半年后
1998年 1月~ 6月
汽水质量明显提高
尤其是铜铁合格率达 10 0 %
取样冲洗水不再发红
Abstract
Dawukou Power Plant used Dimethyl ketoxime as the deoxidizing agent(DMKO) on four of its HP 410 t/h boilers.It was indicated by two years industrial tests that though it had some deoxidizing effect
but negative result came up with its application
such as grow-up of scaliing
yellow color of turbine blade
degradation of feedwater in C u content
etc.It showed no advantages over N 2H 4 that were commonly used in the fossil-fired power plant.After stopping use of DMKO agent for half a year(from January to June
1998)
the steam and water qualities were improved significantly
especially the contents of Cu and Fe(100%).No red color was found in the sampling water any more.