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首页> 外文期刊>Journal of Fiber Science and Technology >消防用ホースの熱流束曝露試験および耐輻射熱カバーの開発
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消防用ホースの熱流束曝露試験および耐輻射熱カバーの開発

机译：消防软管的热通量曝光试验和辐射电阻覆盖的研制

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摘要

A firefighting hose having both an elastomeric lining of circular fabric inside and an elastomeric covering of circular fabric outside is known as the lay flat hose or the through-the-weave hose.Among the through-the-weave hoses, those having a diameter of over 100 mm are called as largediameter hoses (LDHs). They have been utilized in a wide range of industrial applications such as water supply for hydrofracking, dewatering in mining, transportation of several liquids in logistics, emergency cooling water supply for electrical plants, and dewatering operations by the authorities during floods, in addition to the firefighting application.On the other hand, we have researched a method to protect LDHs from radiant heat arising from tank fires at petrochemical plants. Radiant heat is one of the major obstacles to firefighting and can cause serious accidents involving both firefighters and their equipment. Thus, LDHs with radiant heat resistance will contribute to successful firefighting operations in the tank fires.This study evaluates the heat flux resistance of LDH specimens that were subjected to a heat flux exposure experiment conducted in accordance with ISO 6942. After 10kW/m~(2 )of heat flux exposure, the unprotected LDH specimen underwent significant collapse, and the surface temperature of the hose reached 249?C, which exceeds the flow beginning temperature of the elastomeric materials of which the LHDs are composed. The LDHs specimen protected with an aluminum-deposited aramid fabric cover suffered no damage after 10kW/m~(2) and 20kW/m~(2) exposure. The estimation of the radiant heat showed that the aluminum-deposited aramid fabric could protect LDHs from the radiant heat of various flammable liquids at tank fires. These results suggest that the aluminum-deposited aramid fabric is a suitable material for use as an antiradiant heat cover for LDHs.
机译：具有圆形织物的弹性衬里的消防软管和外面的圆形织物的弹性覆盖物被称为铺设扁平软管或穿过编织软管的侧链软管，具有直径的织物超过100毫米称为Largediameter软管（LDH）。它们已被用于各种工业应用，如供水，以供水，采矿中的脱水，物流的几种液体运输，电厂应急冷却供水，以及当局在洪水期间由当局进行脱水行动，除了另一方面，我们研究了一种保护LDH保护LDH免受来自石化植物的坦克火灾的辐射热量的方法。辐射热是消防的主要障碍之一，可能导致涉及消防员及其设备的严重事故。因此，具有辐射耐热性的LDH将有助于在坦克火灾中成功的消防操作。本研究评估了根据ISO 6942进行的热通量暴露实验的LDH样本的热通量电阻。10kW / m〜（ 2）热通量暴露，未受保护的LDH样本进行显着崩溃，软管的表面温度达到249℃，其超过其组成的弹性体材料的流动开始温度。用铝沉积的芳纶织物覆盖物保护的LDHS样本在10kW / m〜（2）和20kW / m〜（2）暴露后遭受损伤。辐射热的估计表明，铝沉积的芳纶织物可以保护LDH免受坦克火灾的各种易燃液体的辐射热量。这些结果表明，铝沉积的芳族织物是用作LDHS的抗风式热盖的合适材料。

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