[논문]선박 엔진룸의 소화용 분무노즐의 재료특성 및 유동해석

배동수; 이진경

doi:10.21289/ksic.2019.22.5.553

선박 엔진룸의 소화용 분무노즐의 재료특성 및 유동해석
Finite Element Analysis and Material Characteristics of Fire Spray Nozzle for Ship Engine Room 원문보기

한국산업융합학회 논문집 = Journal of the Korean Society of Industry Convergence, v.22 no.5, 2019년, pp.553 - 559

배동수 (동의대학교 신소재공학부) , 이진경 (동의대학교 기계자동차로봇부품공학부)

Abstract ▼ AI-Helper

Various types of nozzles have been used to cope with fire in ships. However, in Korea, precise nozzles that perform fine spraying function are required for fire fighting in case of fire in a ship, and most of these nozzles depend on imports. Therefore, in this study, we developed various types of nozzles to develop the water spray nozzle for evolving fire in the engine room of the ship, and developed an optimal nozzle through flow analysis and fire test. For this purpose, we selected the materials that can satisfy the characteristics of existing nozzle materials and developed the design technology and processing technology in the nozzle considering fluid flow to achieve optimal water spraying performance. In order to develop an optimal nozzle, the flow through the finite element analysis was first analyzed and the nozzle was manufactured. As a result of flow analysis of the developed nozzle, the maximum velocity at the outlets of four holes at 0.3 MPa was about 3m/s and about 0.15 MPa. In addition, when the pressure at the inlet was 1.8 MPa, it showed the outlet speed of about 18m/s and a pressure of 1.2 MPa.

주제어

표/그림 (12)

그림 Fig. 1 (a) Shape and (b) body, (c) cap, (d) filter parts of the developed nozzle
표 Table 1. Water Spray Performance Value of Imported Nozzles
그림 Fig. 2 (a) Photograph of filter and (b) result of EDS
그림 Fig. 3 (a) Photograph of body part and (b) result of EDS
그림 Fig. 4 (a) Mesh size of filter and (b) diameter of wire rod
표 Table 2. Chemical properties of each part of the developed nozzle.
표 Table 3. Water spray performance values and hardness of developed nozzle.
그림 Fig. 5 Modeling and mesh for flow analysis of nozzle
그림 Fig. 6 Velocity vectors according to water pressure of nozzle inlet
그림 Fig. 7 Water pressure of nozzle outlet according to water pressure of nozzle inlet
그림 Fig. 8 Velocity vectors of nozzle outlet according to velocity of nozzle inlet
그림 Fig. 9 Fire test of the developed nozzle

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