Early warning method for monitoring abnormal temperature state of ship carrying dangerous goods

Abstract

The invention discloses an early warning method for monitoring the abnormal temperature state of a ship carrying dangerous goods. The early warning method comprises the steps of monitoring equipment installation, temperature abnormal state parameter determination, temperature abnormal index calculation and temperature abnormal state level grading. The infrared thermal imaging temperature measurement method is utilized to realize overall temperature measurement of temperature field spaces of all key dangerous places of the ship carrying the dangerous goods, and the temperature abnormal state level grade of the ship carrying the dangerous goods is calculated based on a comprehensive temperature evaluation strategy by utilizing various indexes capable of objectively reflecting the temperature abnormal state. The application of the method has the advantages of being accurate in advanced early warning, high in environmental adaptability, low in false alarm rate, high in anti-interference factor, good in feasibility and operability and the like, and an effective technical method is provided for a shipping management department to implement accurate and effective hierarchical management and control.

Description

technical field [0001] The invention relates to a ship monitoring and early warning method, in particular to an early warning method for monitoring the abnormal temperature state of a ship carrying dangerous goods. Background technique [0002] With the rapid development of my country's national economy and industrial production, inflammable and explosive petrochemical products and chemicals are used as raw materials, intermediate products or finished products for industrial production and people's lives, and their demand and usage have increased sharply in recent years. As a major country in the production, use, import, export and consumption of hazardous chemicals, my country has always attached great importance to the safe production of hazardous chemicals. As one of the important ways of cargo transportation, once a safety accident occurs in the process of water transportation of hazardous chemicals, it will cause serious adverse effects on waterways, nearby ships, surro...

AI Technical Summary

Problems solved by technology

[0003] At present, the temperature perception of ships carrying dangerous goods is mainly through the installation of point temperature sensors in the cargo hold to monitor the temperature change of the cargo in the independent cargo hold, and the installation of point type temperature-sensitive fire detectors on the ceiling of occupied places to detect whether there is a fire. However, the high-temperature risk points that lead to fire and explosion accidents of dangerous goods on board have the characteristics of scattered distribution and large numbers. In high-temperature weather, the high-temperature piping system cannot supply power when the insulation material is damaged. Under abnormal conditions such as short circuits and loose joints of the lines and electrical cabinets, people who violate regulations and smoke, and fires in the surrounding areas of the ship may cause explosions of dangerous goods. Realize comprehensive, accurate, comprehensive and dynamic monitoring and early warning of large-scale temperature fields for dangerous places that may cause explosions on ships carrying dangerous goods

[0004] In addition, due to the significant difference in the ambient temperature of the internal space and the temperature of many facilities and equipment in different dangerous places on board, some equipment is in a medium-high temperature state for a long time during normal operation, and the temperature of the space in the place is affected by the external air circulation under non-accident conditions. Influenced by interference factors, the traditional high temperature threshold over-limit alarm method often cannot objectively reflect the overall over-temperature risk level of the ship, and is prone to omissions and misreports, which cannot meet the current requirements of the relevant shipping management departments for the safety of waterway transportation of dangerous goods. Risk Management Requirements

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