A preferred method of moving water spray parameters for a vertical fire ignited tank

By combining on-site experiments and fire dynamics simulations, a thermal radiation and temperature distribution model was constructed, which solved the problem of inaccurate selection of mobile water spray parameters for vertical storage tanks, and enabled accurate flow calculation and spray operation guidance under different working conditions.

CN117982837BActive Publication Date: 2026-05-29CHINA PETROLEUM & CHEMICAL CORP +1
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
CHINA PETROLEUM & CHEMICAL CORP
Filing Date
2022-11-04
Publication Date
2026-05-29

AI Technical Summary

Technical Problem

Existing technologies do not fully consider the influence of tank size and combustion medium type when determining the parameters for mobile water spraying in vertical storage tanks, resulting in one-sided parameter selection and failing to accurately guide spraying operations under different working conditions.

Method used

By combining on-site mobile spraying experiments with fire dynamics simulation analysis of vertical storage tanks, a fire dynamics and fluid dynamics model of the storage tank is constructed to determine the heat radiation and temperature distribution of the storage tank, establish the relationship between the fixed water spraying flow rate and the highest temperature of the tank wall, and then calculate the mobile spraying flow rate.

Benefits of technology

It enabled accurate determination of the mobile water spray flow rate during fires in vertical storage tanks, provided technical support, and offered effective guidance for on-site firefighters' spraying operations.

✦ Generated by Eureka AI based on patent content.

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Abstract

The application discloses a kind of vertical ignition storage tank mobile water spray parameter optimization method.The method of the present application carries out mobile spray experiment by igniting fuel in vertical storage tank to form full liquid surface fire, after constructing the relationship between mobile spray loss rate and single spray gun spray arc surface central angle, carry out fire dynamics analysis on storage tank by constructing storage tank fire dynamics simulation model, after determining the heat radiation distribution and temperature distribution of storage tank in stable combustion state, carry out multiple fixed spray flow analysis by constructing storage tank fluid mechanics model, obtain the relationship between storage tank fixed water spray flow and tank wall surface highest temperature, obtain the relationship between vertical storage tank fixed water spray flow and tank wall surface highest temperature under different working conditions by multiple simulation, and the mobile spray flow of vertical storage tank to be calculated is optimized.The present application realizes the accurate determination of the mobile spray flow of vertical ignition storage tank, which is beneficial to guide the spray operation of on-site firefighters on the ignition vertical storage tank.
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