CHENDing-li,YEHong,ZHANGMin.Fire Protection Water Supply System Design of Pumped Storage Powerhouse under Conditions of High Water Level Amplitude Variation[J].China Water & Wastewater,2025,41(10):70-74.
Fire Protection Water Supply System Design of Pumped Storage Powerhouse under Conditions of High Water Level Amplitude Variation
China Water & Wastewater[ISSN:1000-4062/CN:12-1073/TU]
volume:
第41卷
Number:
第10期
Page:
70-74
Column:
Date of publication:
2025-05-17
- Keywords:
- fire protection water supply system; pumped storage project; high water level amplitude variation; decompression
- Abstract:
- The pumped storage project serves as a crucial support for promoting the transformation of the energy structure in China, among which the fire protection water supply system is a key component that ensures the safe operation of the powerhouse. Different from the relatively stable water level in fire pools of civil buildings, the water level of pumped storage projects typically fluctuates between 20 and 40 meters with considerable frequency. Ensuring the safe and reliable operation of fire hydrants throughout the powerhouse under varying water levels constitutes a key and difficult point in the design of fire protection water supply system. Through the comprehensive analysis of four types of water level conditions, while considering the requirements for the most unfavorable fire hydrant pressure and the prevention of overpressure at the lowest fire hydrant, the corresponding fire protection water supply system layout schemes were developed. Furthermore, an end-switch type pressure-reducing water supply system was proposed. This paper introduced the key design aspects, calculation methodologies, and control logic of the system. Furthermore, it proposed measures for end decompression and source decompression, and conducted a quantitative analysis of the applicable scope of these measures, providing a valuable reference for similar projects.
Last Update:
2025-05-17