| 低磷酸盐处理方式下炉水pH值的计算方法及应用 |
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| 引用本文： | 张维科,孙本达,楼亿红.低磷酸盐处理方式下炉水pH值的计算方法及应用[J].热力发电,2011,40(9). |
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| 作者姓名： | 张维科 孙本达 楼亿红 |
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| 作者单位： | 1. 西安热工研究院有限公司,陕西 西安,710032
2. 广州珠江电厂,广东 广州,511457 |
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| 摘 要： | 对炉水中各种碱化剂(NH3、Na3PO4和NaOH)对炉水pH值的影响进行分析,给出了低磷酸盐处理方式下炉水pH值的计算方法,并给出不同炉水处理体系炉水pH值与炉水PO43-含量的关系曲线及典型应用。研究结果表明:(1)在炉水pH值计算时,如果PO43-小于2 mg/L,则可以将Na3PO4当作一元强碱来处理;(2)在炉水NaOH和Na3PO4含量较低的情况下,炉水中氨对pH值的作用显著;(3)将现有的水汽品质在线监测数据如给水电导率、炉水PO43-浓度以及配药时NaOH与Na3PO4.12H2O的比例代入炉水pH值计算公式即可方便地计算出炉水pH值,从而有效指导炉水pH值的控制和判断炉水pH值测量的准确性;(4)不同炉水处理体系的关系曲线有助于合理选择炉水处理方式。
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| 关 键 词： | 炉水 低磷酸盐处理 pH值计算方法 NH3 Na3PO4 NaOH |
CALCULATION METHOD OF pH VALUE IN BOILER WATER UNDER LOW PHOSPHATE TREATMENT MODE AND APPLICATION THEREOF |
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| ZHANG Weike,SUN Benda,LOU Yihong.CALCULATION METHOD OF pH VALUE IN BOILER WATER UNDER LOW PHOSPHATE TREATMENT MODE AND APPLICATION THEREOF[J].Thermal Power Generation,2011,40(9). |
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| Authors: | ZHANG Weike SUN Benda LOU Yihong |
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| Affiliation: | ZHANG Weike1,SUN Benda1,LOU Yihong2 1.Xi'an Thermal Power Research Institute Co Ltd,Xi'an 710032,Shaanxi Province,PRC 2.Guangzhou Zhujiang Power Plant,Guangzhou 511457,Guangdong Province,PRC |
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| Abstract: | The influence of different alkalization agents,i.e.NH3,Na3PO4,and NaOH,in boiler water upon the pH value of boiler water has been analysed,the calculation method for pH value of boiler water under low phosphate treatment mode being given,and the relationship curves between pH value of boiler water and the PO3-4 content in boiler water in different boiler water treatment systems and their typical application being also given.Results of study show that as listed in the following:(1) during the time of calcula... |
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| Keywords: | boiler water low phosphate treatment calculation method of pH value NH3 Na3PO4 NaOH |
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