A liquid nitrogen fire extinguishing system safety protection and emergency treatment method, device and medium

Abstract

This invention discloses a method, equipment, and medium for safety protection and emergency response of a liquid nitrogen fire extinguishing system. The method includes deploying an environmental monitoring network, collecting temperature distribution data and smoke particle concentration, establishing a graded early warning threshold model, and when the temperature distribution data or smoke particle concentration data triggers a risk level, the central controller outputs an alarm signal of the corresponding level. Based on the alarm signal level, the central controller automatically activates the linked ventilation protection device and simultaneously triggers an emergency isolation procedure, recording environmental monitoring network data, alarm logs, and the operational status of rescue sub-equipment, generating a standardized handling record. This invention's system self-check response time is reduced by 70.6% compared to traditional systems, and the fault identification accuracy is improved by 23.1%. It solves the problems of low self-check efficiency, inaccurate fault identification, incomplete records, and inconvenient querying in traditional systems, providing complete data support for subsequent system maintenance, fault diagnosis, and technical optimization, and improving the system's practicality and maintainability.

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