特高压换流变压器消防管道抗干烧性能试验研究  

Study on Fire Resistance Performance Test of Fire Fighting Pipe of UHV Converter Transformer

作　　者：张佳庆 过羿[1,2,3] 黎昌海 周亦夫[5] 黄勇[5] ZHANG Jiaqing;GUO Yi;LIChanghai;ZHOU Yifu;HUANG Yong(State Grid Anhui Electric Power Research Institute,Hefei 230601,China;Anhui Province Key Laboratory of Electric Fire and Safety Protection,Hefei 230022,China;State Grid Laboratory of Fire Protection for Transmission and Distribution Facilities,Hefei 230022,China;State Key Laboratory of Fire Science,University of Science and Technology of China,Hefei 230027,China;State Grid Co.,Ltd.,Beijing 100031,China)

机构地区：[1]国网安徽省电力有限公司电力科学研究院,合肥230601 [2]电力火灾与安全防护安徽省重点实验室,合肥230022 [3]国家电网公司输变电设施火灾防护实验室,合肥230022 [4]中国科学技术大学火灾科学国家重点实验室,合肥230027 [5]国家电网有限公司,北京100031

出　　处：《高压电器》2022年第2期135-141,共7页High Voltage Apparatus

基　　金：国家电网有限公司科技重大专项项目(52120518002L)。

摘　　要：特高压换流变压器火灾会对防护区内干式消防管道造成干烧,连接件及其密封受损会造成大量漏水,甚至导致灭火系统整体失压。结合某特高压换流变压器真型灭火试验典型温度,对目前标准规定的干烧试验方法进行分析,并提出通过涂覆钢结构防火涂料提升特高压换流变压器消防管道抗干烧性能的措施。根据真型灭火试验升温特点设计试验装置,所得温度曲线可以较好反映实际火灾热环境状态。对涂覆不同厚度钢结构防火涂料的消防管道连接件进行干烧试验,结果表明,实际工程中可以采用钢结构防火涂料对特高压换流变压器消防管道进行耐火防护,并应结合真型灭火试验火灾过程中温度上升较快、温度较高的特点,确定防火涂料选型及涂覆厚度并开展相关验证工作。The fire of UHV converter transformer may cause dry burning of the dry fire fighting pipe in the protection zone,the damage of the connector and its seals can cause a lot of water leakage and even lead to overall pressure loss of the fire extinguishing system. The dry burning test method specified in the current standard is analyzed in combination with the typical temperature of a real fire extinguishing test of UHV converter transformer and the measure to improve the dry burning resistance of fire fighting pipe of UHV converter transformer by applying fire resistive coating for steel structure is proposed. The test device is designed in accordance with the temperature-rising characteristics of the real fire extinguishing test and the obtained curve can reflect the actual thermal environment of the fire well.The dry burning tests to the fire fighting pipe connectors coated with different thickness fire-fighting coatings for steel structure is performed. The results show that in practical engineering the fire fighting coating for steel structure can be used to protect the fire fighting pipe of UHV converter transformer. The type selection and coating thickness are defined and related verification work is developed in combination with such characteristics as fast temperature rise and high temperature during the process of real fire extinguishing test.

关 键 词：特高压 换流变压器 钢结构防火涂料 消防管道 干烧 

分 类 号：TM41[电气工程—电器] TU998.1[建筑科学—市政工程]