Improving Flow Efficiency via Internal Flow Channel Optimization Design in a Novel Non-Pressurized Diaphragm Deluge Alarm Valve
Source abstract
Abstract
Automatic sprinkler systems are widely used for fire protection in various buildings, with deluge valves serving as the core component of these systems. Traditional deluge valves employ a diaphragm-type design (Zoning Sprinkler Fire Monitor, ZSFM), which is prone to significant safety hazards such as corrosion and damage due to uneven pressure distribution on the diaphragm. This study modified a 150 mm diameter ZSFM to a non-pressure diaphragm type, establishing and validating a CFD model of the internal flow field. Based on the original structure, six drag reduction optimization cases are designed. Among these, case 5 exhibits the minimum inlet-to-outlet pressure drop of 0.050 MPa under rated operating conditions, meeting and significantly exceeding the fire protection industry standard (≤0.08 MPa).
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Research context
OpenAlex topics: Fire dynamics and safety research · Water Systems and Optimization · Flow Measurement and Analysis
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
College of Marine Equipment and Mechanical Engineering, Jimei University, Xiamen 361021, China
Key Laboratory of Energy Cleaning Utilization and Development of Fujian Province, Jimei University, Xiamen 361021, China
Xiamen Aids to Navigation Department of the Eastern Navigation Service Center, Ministry of Transport, Xiamen 361005, China
Funding
Natural Science Foundation of Xiamen · Natural Science Foundation of Fujian Province · Scientific Research Foundation of JiMei University
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