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http://dx.doi.org/10.12812/ksms.2011.13.2.275

The Methods to Improve the In-Line Eductor  

Joo, Seung-Ho (The Graduate Course Chosun University Department of Architecture)
Lim, Mann-Taek (Department of Architecture, Chosun University)
Kim, Hye-Won (Busan Kyungsang College Major of Fire Safety Management)
Kong, Ha-Sung (Kyungil University School of Fire & Disaster Prevention)
Publication Information
Journal of the Korea Safety Management & Science / v.13, no.2, 2011 , pp. 275-282 More about this Journal
Abstract
A core device of foam system is the in-line eductor and it is the device to mix the foam liquid into liquid solution proper to the use density and the mixture ratio must be kept regularly regardless of changing fluid condition of the front and rear end of the in-line eductor. However, if the flux of the pressurized water changes, the mixture ratio is not kept regularly, and so it becomes a cause which a performance of fire-extinguishing deteriorates in discharging foam liquid. I devise a method to improve it that the metering orifice type in-line eductor is improved into the metering venturi type in-line eductor, the fluctuation of the mixture ratio to the flux change of the pressurized water is minimized and the performance of fire-extinguishing is kept regularly. As this method is simple in its structure and can be designed at a low cost, it helps for maintenance as well. In the future, it seems to need the research for the metering nozzle type in-line eductor in the future.
Keywords
Foam system; In-line eductor; Orifice; Venturi;
Citations & Related Records
Times Cited By KSCI : 4  (Citation Analysis)
연도 인용수 순위
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