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 | Research of water-foam nozzles characteristics in various modes of extinguishing agent discharging |
| UDC 614.843.4 |
| Authors | Chan Dyk Khoan
Rivans Vladislav Yurisovich
Kamlyuk Andrey Nikolaevich, PhD in Physico-Mathematical Sciences, Associate Professor
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| Abstract | Purpose. The objective of the research is to analyze the influence of nozzle diameter, grid presence, grid cells area and number of aeration holes on the parameters of sprayed water jet formed by water-foam nozzle and to define performance characteristics of the water-foam nozzle.
Methods. Prototypes of water-foam nozzle were tested on water flow, jet range, effective jet range, spray angle and average sprinkling intensity.
Findings. Influence of nozzle diameter on water flow and spray jet parameters is determined. The necessity of installation of grid with 1 mm2 cells into tested water-foam nozzle is proved. The appropriate number of aeration holes for tested nozzle is defined.
Application field of the research. The obtained experimental study data could be used in fire nozzle design.
Conclusions. The prototype with 11 mm nozzle diameter, 1 mm2 grid cells and 5-7 aeration holes is the most optimal version for discharging water. It has better performance characteristics than a regular nozzle.
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| Keywords | water-foam nozzle; fire nozzle; performance characteristics; experimental studies
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| | References |
| 1. | Kamlyuk A.N., Grachulin A.V., Chan Dyk Khoan Kavitatsionnyy vodopennyy nasadok pozharnogo stvola [Cavity water-foam nozzle for fire nozzle]. Рat. 10841 Resp. Belarus. (rus).
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| 2. | Kamlyuk A.N., Maksimovich D.S., Chan Dyk Eksperimental'nye issledovaniya opytnykh obraztsov vodopennogo nasadka [Experimental research of prototype of water-foam nozzle]. Vestnik KII MChS Respubliki Belarus'. 2015. No. 2(22). Pp. 61–67. (rus).
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| 3. | Sistema standartov pozharnoy bezopasnosti. Stvoly pozharnye ruchnye. Obshchie tekhnicheskie usloviya : STB 11.13.14-2009. Vved. 01.01.10. Minsk : Belorus. gos. in-t standartizatsii i sertifikatsii, 2009. 8 p. (rus).
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| 4. | Bokhan N.I Uchebno-metodicheskoe posobie po obrabotke eksperimental'nykh dannykh [Guide on experimental data processing]. Svetlaya Roshcha: IPPK MChS Respubliki Belarus', 2008. – 34 s. (rus).
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| 5. | Stvol pozharnyy ruchnoy SRK-50: [pasport] / OOO «Khartsyzskiy mashinostroitel'nyy zavod». – [Khartsyzsk, 2007]. 4 p. (rus).
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