[논문]일반 소방호스와 꼬임방지 소방호스의 꼬임 횟수에 따른 방수시간 분석

홍석환; 김서영; 공하성

doi:10.12812/ksms.2021.23.4.055

일반 소방호스와 꼬임방지 소방호스의 꼬임 횟수에 따른 방수시간 분석
Analysis of Waterproof Time by Number of Twists between Ordinary Fire Hose and Anti-twist Fire Hose 원문보기

대한안전경영과학회지 = Journal of the Korea safety management & science, v.23 no.4, 2021년, pp.55 - 60

홍석환 (우석대학교 일반대학원 소방방재학과) , 김서영 (우석대학교 일반대학원 소방방재학과) , 공하성 (우석대학교 소방방재학과)

Abstract ▼ AI-Helper

This study is to check waterproof by number of twists of fire hose and measure the first waterproof time to analyze the relationship between twists of fire hose and first waterproof time and waterproof by position of twists so as to suggest the efficient plan to prevent twists of fire hose. Ordinary fire hose did not make waterproof in case that position of twists was near the nozzle with twists 5 times or more, while anti-twist fire hose had no problem for waterproof only with delayed time. Like ordinary fire hose, anti-twist fire hose also showed the tendency to increase the waterproof time in proportion to the number of twists. In case that the position of twists was near waterproof port even with 10 times of twists in anti-twist fire hose, the first waterproof time was increase by 0.63 seconds on average without any problem for waterproof, which was somewhat faster than that in ordinary fire hose. With respect to the position of twists, waterproof of anti-twist fire hose was affected more as the number of twists was increased more near the nozzle rather than near the waterproof port, like ordinary fire hose. In summary, anti-twist fire hose equipped with anti-twist tool at the middle connection port and the nozzle showed a good waterproof performance with delayed waterproof time regardless of number of twists, as a solution for the twist problem of ordinary fire hose.

주제어

표/그림 (9)

그림 [Figure 1] Ordinary Fire Hose
그림 [Figure 2] Anti-twist Fire Hose
표 Environment of Experiment.
표 Zero twist
표 Three twist
표 Six twist
표 Nine twist
그림 [Figure 3] The average waterproof time depending on the number of twists.
표 Twelve twist

참고문헌 (8)

H. E. Lee(2020), "An experimental study on pressure loss in fire hose under various deployment situations." Fire Safety Research, 1(1):116-118.
H. S. Kong, J. M. Yun, J. H. Lee, K. C. Kim(2012), "A study on connection of fire hose." Journal of the Korea Safety Management & Science, 2012(11):93-98.
J. S. Nam, S. H. Sakong, C. S. Baek, J. Y. Park, N. H. Cho, K. W. Yun(2002), "A study on the inspection of actual condition and he assessment of performance in fire hose." Fire Science and Engineering, 2002:242-247.
S. H. Min, S. H. Jung(2012), "A study on improvement of discharge pressure measurement of indoor fire hydrant system." Fire Science and Engineering, 26(3):67-72.

원문보기 상세보기
M. E. Benfer, E. Forssell, J. Scheffey(2017), "Determination of fire hose friction loss characteristics." Fire Technology, 53(3):1059-1062.

상세보기
Korea Ministry of Government Legislation(2019), Technical standard for type approval and product inspection of fire hose Article 2 No.1~No.8. 1. 10. Enforcement.
YookSong, http://www.yooksong.com/kor/product/product07_view02
Ministry of Government Legislation(2021, April 1), Fire safety standards for indoor hydrant system. Article 7(2), Partial Revision.

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