Fire alarm and fire extinguishing system for oil tank

Abstract

The invention relates to a fire alarm and fire extinguishing system for an oil tank. The system comprises a foam weir plate, a tank wall, an optical fiber grid alarm system, a linkage control platform, electromagnetic valves, foam ejection devices and a foam extinguishing agent, wherein an annular space between the foam weir plate and the tank wall is divided into a plurality of areas; the optical fiber grid alarm system makes alarm in different areas independently and transmits an alarm signal to the linkage control platform; the linkage control platform transmits the alarm signal to the electromagnetic valves of corresponding areas; the electromagnetic valves control signals to indicate the foam ejection devices in corresponding areas to automatically start to eject the foam extinguishing agent to extinguish the fire. Due to the adoption of the fire alarm and fire extinguishing system, the fire hazard of the oil tank can be controlled at the primary period, the effects of rapid response, linkage control and fire extinguishment in different areas are achieved, and the purpose of rapidly extinguish the fire hazard of the oil tank is achieved.

Description

technical field [0001] The invention relates to a fire extinguishing device, in particular to an oil tank fire alarm and fire extinguishing system. Background technique [0002] With the continuous growth of energy demand, the number and volume of oil tanks are gradually increasing. Once a fire occurs in the oil tank, it will cause heavy property loss and casualties. It is of far-reaching and practical significance to quickly alarm and extinguish the initial fire of the oil tank to prevent it from evolving into a major fire accident. [0003] At present, the foam fire extinguishing system of the oil tank mostly adopts the full flooding fire extinguishing method. Regardless of the fire location and fire area, all foam generators start to spray at the same time, and the foam collects in the annular space between the weir plate and the rain shield on the floating plate. When the foam completely covers the annular space and gathers to a certain height, it can flow into the se...

AI Technical Summary

Problems solved by technology

These systems have the advantages of fast start-up, high efficiency, and easy maintenance, but most of them are limited to fighting small-sized oil tank fires, and the flow and pressure cannot meet the needs of fighting medium and large oil tank fires

Moreover, most of these fire protection systems require large-scale changes to the original fire protection systems and storage tanks, and the cost of technical implementation is relatively high.

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