D40聚氨酯衬里消防水带阻抗系数的理论分析  

Theoretical Analysis of Impedance Coefficient of D40 Polyurethane Lined Fire Hose

作　　者：刘彬 LIU Bin(Kunming Training Corps of the National Fire and Rescue Bureau,Kunming 650208,China)

机构地区：[1]国家消防救援局昆明训练总队,云南昆明650208

出　　处：《科技创新与生产力》2024年第9期89-91,共3页Sci-tech Innovation and Productivity

摘　　要：针对阻抗系数这一影响D40聚氨酯衬里消防水带应用的重要参数,本文根据经典流体力学理论和消防供水理论,提出了一种简便易行的阻抗系数理论分析方法,得到了以下结论:目前常用的20 m和30 m的D40 PU水带的阻抗系数理论值为0.315和0.473;当使用TL20-B-4DS立式高压便携消防水泵和QLD6.0/4直流喷雾水枪连接D40 PU水带灭火时,在额定压力和额定流量情况下,最大供水距离约为500 m,最大供水高度约为100 m。本文指出阻抗系数这一理论参数及其应用,对指导基层消防救援队伍正确使用D40 PU水带进行消防供水和灭火救援工作有着积极的现实意义。Aiming at the impedance coefficient which is an important parameter that affects the application of D40 polyurethane lined fire hose,this paper proposes a simple and feasible impedance coefficient theoretical analysis method based on classical fluid mechanics theory and fire water supply theory,and obtains the conclusions:the impedance coefficient theoretical values of 0.315 and 0.473 for commonly used 20 m and 30 m D40 PU water hoses;when TL20-B-4DS vertical high-pressure portable fire pump and QLD6.0/4 DC spray water gun are used to connect D40 PU hose for fire extinguishing,the maximum water supply distance is about 500 m and the maximum water supply height is about 100 m under rated pressure and rated flow.This paper points out that the theoretical parameter and its application have positive practical significance in guiding grassroots fire rescue teams to correctly use D40 PU water hoses for fire water supply and firefighting rescue work.

关 键 词：消防水带 聚氨酯 阻抗系数 理论分析 

分 类 号：F713.55[经济管理—市场营销]