中国电力 ›› 2018, Vol. 51 ›› Issue (7): 103-107.DOI: 10.11930/j.issn.1004-9649.201711200

• 发电 • 上一篇    下一篇

火电厂动力驱动泄放阀配置及排量计算分析

张传虎1, 陈萱2, 张中洲3, 田松峰4, 唐惠锋5, 刘建民6, 胡为祖7, 鹿焕成8   

  1. 1. 武汉华科能源环境科技股份有限公司, 湖北 武汉 430074;
    2. 广东省粤电集团有限公司珠海发电厂, 广东 珠海 519000;
    3. 南阳鸭河口天益发电有限责任公司, 河南 南阳 474671;
    4. 华北电力大学, 河北 保定 071003;
    5. 河南华豫盛达特种设备检验技术有限公司, 河南 焦作 542150;
    6. 西安理工大学, 陕西 西安 710082;
    7. 安徽省特种设备协会, 安徽 合肥 230051;
    8. 湖北华科瑞诚标准化事务所, 湖北 武汉 430074
  • 收稿日期:2017-11-29 修回日期:2018-03-24 出版日期:2018-07-05 发布日期:2018-07-31
  • 作者简介:张传虎(1971-),男,高级工程师,从事电站锅炉压力容器安全阀检修校验技术研究应用工作,E-mail:tigerzhang@hkst.com.cn

Configuration and Capacity Calculation of Power-actuated Pressure Relief Valve in Thermal Power Plants

ZHANG Chuanhu1, CHEN Xuan2, ZHANG Zhongzhou3, TIAN Shongfeng4, TANG Huifeng5, LIU Jianmin6, HU Weizu7, LU Huancheng8   

  1. 1. Wuhan Huake Energy Environment Science & Technology Co., Ltd., Wuhan 430074, China;
    2. Guangdong Yudean Group Co., Ltd., Zhuhai Power Plant, Zhuhai 519000, China;
    3. Nanyang Yahekou Tianyi Power Generation Co., Ltd., Nanyang 474671, China;
    4. North China Electric Power University, Baoding 071003, China;
    5. Henan Huayushengda Special Equipment Inspection Technology Co., Ltd., Jiaozuo 542150, China;
    6. Xi'an University of Technology, Xi'an 710082, China;
    7. Anhui Association of Special Equipment, Hefei 230051, China;
    8. Hubei Huakeruicheng Standardization Firm, Wuhan 430074, China
  • Received:2017-11-29 Revised:2018-03-24 Online:2018-07-05 Published:2018-07-31

摘要: 火电厂动力锅炉上配备的动力驱动泄放阀是对锅炉提供超压保护的重要设备,但在实际应用中,很多电厂对动力驱动泄放阀的配置未予足够重视,未能正确执行ASME和电力行业标准规范的相关要求,给锅炉安全运行带来隐患。介绍了相关标准对动力驱动泄放阀的配置要求;分析了动力驱动泄放阀在电厂实际应用中存在的问题并提出了解决方案;通过计算分析缩径手动隔离球阀对排量的不利影响,提出按照相关标准规范合理、正确配置动力驱动泄放阀的必要性和重要性。

关键词: 火电厂, 锅炉, 动力驱动泄放阀, 配置, 手动隔离球阀, 排量

Abstract: The power-actuated pressure relief valve (PCV valve) equipped in the thermal power plant boiler is a vital equipment to provide overpressure protection for the boiler. However, in practice, many power plants do not pay enough attention to the configuration of the power drive discharge valve and do not always follow the requirements of ASME and the electric industrial standards which definitely brings hidden dangers to the boiler operation. This paper introduces the relevant standards on the PCV valve configuration, analyzes the existing problems in practice and proposes the solutions. By calculating the adverse effect of manual isolation ball valve with reduced diameter on the discharge capacity, the necessity and importance of properly configuring the PCV valve following the standards are emphasized.

Key words: thermal power plant, boiler, power-actuated pressure relief valve (PCV valve), configuration, manual isolation ball valve, discharge capacity

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