对事故通风机供电负荷等级的探讨

曾胜安（重庆长厦安基建筑设计有限公司，重庆市 400042）

Discussion on the Power Supply Load Classification of Emergency Ventilator

ZENG Sheng’an(Arch‑age Architectural Design Co.,Ltd.,Chongqing 400042，China)

Abstract：The working conditions of two types of emergency ventilators commonly used in civil buildings are listed,their purposes and functions are analyzed,

the working process of each system or equipment of emergency ventilators after emergency is deduced,the impact of combustible gas detection and alarm system on such working process is taken into consideration,and conclusions are drawn according to relevant specifications and standards:the classification of power supply load of emergency ventilator should be equal to that of the workplace.

Key words：civil building;emergency ventilator;load classification;combustible gas detector;combustible gas alarm control unit;emergency automatic shut‑off valve;gas fire extinguishing

摘　要：罗列民用建筑中两种较常见的事故通风机工作状态，通过分析其设置的目的和功能作用，推演在事故发生之后事故通风机启动之前各系统或设备的工作流程，考虑可燃气体探测报警系统对此的影响。结合规范标准的相关规定得出：事故通风机供电负荷等级宜等同于所服务场所的供电负荷等级的结论。

关键词：民用建筑；事故通风机；负荷等级；可燃气体探测器；可燃气体报警控制器；紧急自动切断阀；气体灭火

中图分类号：TU852      　　  　  文献标识码：A

doi：10.3969 / j. issn.1003 － 8493.2022.08.011