Hydraulic Characterization and Impeller Optimization Design of Indoor Fire Pumps

WANG Jie; HU Xiao; LIN Renyong; CHANG Zhengxi; ZHAO Anning; WEN Guoyou; SHAO Haijiang

doi:10.21656/1000-0887.450177

Volume 46 Issue 9

Sep. 2025

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Article Navigation > Applied Mathematics and Mechanics > 2025 > 46(9): 1209-1217

WANG Jie, HU Xiao, LIN Renyong, CHANG Zhengxi, ZHAO Anning, WEN Guoyou, SHAO Haijiang. Hydraulic Characterization and Impeller Optimization Design of Indoor Fire Pumps[J]. Applied Mathematics and Mechanics, 2025, 46(9): 1209-1217. doi: 10.21656/1000-0887.450177

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Hydraulic Characterization and Impeller Optimization Design of Indoor Fire Pumps

doi: 10.21656/1000-0887.450177

1. Key Laboratory of Fluid Transmission Technology of Zhejiang Province, Zhejiang SciTech University, Hangzhou 310018, P.R.China;
2. LEO Group Pump (Zhejiang) Co., Ltd., Taizhou, Zhejiang 317500, P.R.China

Funds:

52476039)

The National Science Foundation of China(12202392

Received Date: 2024-06-17
Rev Recd Date: 2025-07-20

Available Online: 2025-10-17

Abstract

Abstract

To improve the performance of the engineering centrifugal fire pump, a highperformance centrifugal fire pump with high efficiency, low vibration and flat head curve was designed and optimized based on the prototype pump. Aimed at the existing problems of the fire pump, with the computational fluid dynamics method, 3 optimization plans were designed and compared through increase of the auxiliary blade and change of the auxiliary blade length. The results show that, all the 3 optimization plans can improve the fire pump performance to some extent. Optimization plan 2 has a lift of 42.6 m at the design point and an efficiency of 68.46%, eliminates the hump phenomenon, reduces the shaft power and improves the pump efficiency, which is synthetically chosen as the best plan. The research results have guiding significance for improving the fire pump performance and reducing the fire pump shaft power.
- fire pump,
- optimized design,
- numerical simulation,
- internal flow characteristic,
- pressure pulsation

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References(15)

References

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