火电厂输煤构筑物消防给水系统设计探讨  

Discussion on the Fire-fighting Water Supply System Design in Coal Transit Building of Fossil Fuel Power Plants

作　　者：冯晶 杨迎哲 雁川 张咏梅 沈德 FENG Jing;YANG Yingzhe;YAN Chuan;ZHANG Yongmei;SHEN De(Northwest Electric Power Design Institute Co.,Ltd.of China Power Engineering Consulting Group,Xi'an 710075,China)

机构地区：[1]中国电力工程顾问集团西北电力设计院有限公司,陕西西安710075

出　　处：《电力勘测设计》2023年第5期73-78,共6页Electric Power Survey & Design

摘　　要：以某2×660 MW火力发电厂输煤系统为例,对比分析最新规范GB 50229—2019《火力发电厂与变电站设计防火标准》对封闭式钢结构输煤栈桥采用开式雨淋灭火系统及水喷雾灭火系统的相关技术参数及对消防水泵参数选择的影响。结合火力发电厂消防水量较大的特点,建议钢结构输煤栈桥消防系统采用水喷雾灭火系统,管道布置方式优先采用顺坡给水方式,选用ZSTWB/SL-S225-50-120型动态传输皮带喷头。Taking the coal transit system of a certain 2×660 MW power plant as an example,and on the basis of the criterion《Standard for design of fire protection for fossil fuel power plants and substations》GB 50229—2019,the technical parameters of open-type deluge sprinkler system and water spray fire protection system applied for closed steel coal handling trestle and the impact on selection of fire pump parameters are compared and analyzed.Under conventional condition,combined with the characteristics of high fire water supply volume in coal-fired power plant,the water spray fire protection system will be suggested to be used for closed steel coal handling trestle,the positive gradient slope water supply and the ZSTWB/SL-S225-50-120 spray nozzle for conveyor belt will be recommended firstly.

关 键 词：封闭式钢结构 输煤栈桥 开式雨淋灭火系统 水喷雾灭火系统 喷水强度 消防水量 

分 类 号：TM621[电气工程—电力系统及自动化]