螺旋管式换热器吹扫阻力计算与试验研究

doi:10.11930/j.issn.1004-9649.201907165

中国电力 ›› 2020, Vol. 53 ›› Issue (3): 134-138,146.DOI: 10.11930/j.issn.1004-9649.201907165

螺旋管式换热器吹扫阻力计算与试验研究

刘俊峰¹, 马晓珑¹, 李康¹, 陈光建², 朱英杰², 马喜强²

1. 西安热工研究院有限公司, 陕西西安 710054;
2. 华能山东石岛湾核电有限公司, 山东荣成 264312

收稿日期:2019-07-22 修回日期:2019-08-28 发布日期:2020-03-10
作者简介:刘俊峰(1983-),男,高级工程师,从事大型电站调试、运行及节能诊断技术研究,E-mail:liujunfeng-163@163.com
基金资助:
国家科技重大专项资助项目（启停堆调试技术研究2018ZX06906011-007-002）

Calculation and Experimental Study on Purging Resistance of the Spiral Tube Heat Exchanger

LIU Junfeng¹, MA Xiaolong¹, LI Kang¹, CHEN Guangjian², ZHU Yingjie², MA Xiqiang²

1. Xi'an Thermal Power Research Institute Co., Ltd., Xi'an 710054, China;
2. Huaneng Shandong Shidao Bay Nuclear Power Co., Ltd., Rongcheng 264312, China

Received:2019-07-22 Revised:2019-08-28 Published:2020-03-10
Supported by:
This work is supported by National Science and Technology Major Project (Research on Startup and Shutdown Debugging Technology, No.2018ZX06906011-007-002)

摘要/Abstract

摘要： 对于传热管束直径较小、结构较复杂的螺旋管式换热器，使用常规方法清洁其内部管束效果较差。基于高温气冷堆蒸汽发生器的清洁问题，建立了螺旋管式换热器吹扫阻力计算模型，对蒸汽和压缩空气2种吹扫介质的吹扫效果进行分析比较。在计算结果的基础上，选择压缩空气作为吹扫介质并对其吹扫过程进行了试验验证。研究结果表明，采用压缩空气吹扫清洁度符合相关标准，采用蒸汽吹扫可能会引起管子膨胀不均，推荐首选压缩空气吹扫方式。

关键词: 螺旋管式换热器, 蒸汽发生器, 蒸汽吹扫, 压缩空气吹扫, 吹扫系数

Abstract: For the spiral tube heat exchanger with smaller diameter and more complex structure, using the conventional method is not an effective way to clean the inside of the tubes. In this paper, regarding the difficulties in cleaning the steam generator of high-temperature gas cooled reactor (HTGR), on the basis of the numerical model established for calculating the purging resistance of spiral tube heat exchanger, the effects of steam purging and compressed air purging are analyzed and compared respectively. Based on the calculation results, the compressed air is chosen as the purging media and then the purging process is tested and verified. The study results show that compressed air purging can meet the cleaning requirements of the relevant standards, while steam purging will probably make the tubes expand unevenly. Therefore, compressed air purging is recommended as the first choice.

Key words: spiral tube heat exchanger, steam generator, steam purging, compressed air purging, purging coefficient

刘俊峰, 马晓珑, 李康, 陈光建, 朱英杰, 马喜强. 螺旋管式换热器吹扫阻力计算与试验研究[J]. 中国电力, 2020, 53(3): 134-138,146.

LIU Junfeng, MA Xiaolong, LI Kang, CHEN Guangjian, ZHU Yingjie, MA Xiqiang. Calculation and Experimental Study on Purging Resistance of the Spiral Tube Heat Exchanger[J]. Electric Power, 2020, 53(3): 134-138,146.

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https://www.electricpower.com.cn/CN/Y2020/V53/I3/134

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螺旋管式换热器吹扫阻力计算与试验研究

Calculation and Experimental Study on Purging Resistance of the Spiral Tube Heat Exchanger

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