High-pressure gas mist linkage automatic fire extinguishing system

Abstract

The invention discloses a high-pressure gas mist linkage automatic fire extinguishing system. A high-pressure water supply system comprises a water path connecting a water source, a filter, a first electric control valve and a water tank in sequence; a primary water supply pipeline is connected to the bottom of the water tank and connected with a secondary water supply pipeline through a pipeline provided with a high-pressure pump and a check valve; the secondary water supply pipeline provided with a pressure sensor is connected with a main pipeline of a flow sensor through a second electric control valve; a high-pressure nitrogen system comprises a gas path connecting a high-pressure gas source, a pressure regulating valve, a third electric control valve and a mass flow meter in sequence; the tail end of the gas path is connected with the main pipeline; a plurality of nozzles are connected to the tail end of the main pipeline through a plurality of branch pipes; a smoke sensor and a temperature sensor which are connected with an alarming device are mounted at the tail end of the main pipeline; and a drain valve and a liquidometer are mounted in the water tank. Large-particle-size water drops are prevented from being formed when fire extinguishing with high-pressure fine water mist is completed, secondary disasters to protected substances are reduced, and the environment pollution is avoided.

Description

technical field [0001] The invention relates to the field of high-pressure gas mist linkage automatic fire extinguishing system, more specifically, it is an automatic fire extinguishing system that uses high-pressure fine water mist spray fire extinguishing and nitrogen suppression and nitrogen fire extinguishing linkage. Background technique [0002] The fine water mist system has the advantages of high fire extinguishing efficiency, small water consumption, and low water damage loss, and has become the most ideal haloalkane replacement technology recognized by developed countries. However, in the construction process of the fine water mist system, there are a large number of welding, flange connection and other process links. The construction efficiency is low, the process requirements are high, the construction environment is selective, and there is damage to the environment. For example, the labor cost of pipeline connection accounts for the entire fire protection system....

AI Technical Summary

Problems solved by technology

However, in the construction process of the fine water mist system, there are a large number of welding, flange connection and other process links. The construction efficiency is low, the process requirements are high, the construction environment is selective, and there is damage to the environment. For example, the labor cost of pipeline connection accounts for the entire fire protection system. More than half of the construction cost, and at the same time, the airtightness of the pipeline connection and the cleaning of impurities must meet certain standard requirements

At the same time, welding and other traditional water mist system pipe connection methods are likely to cause fire hazards

[0003] At present, the traditional single-fluid fine water mist system tends to form large-size water droplets during the system startup and stop stages, which can cause secondary disasters to the protected materials; although the traditional two-fluid fine water mist system can effectively suppress the formation of large water droplets, its The demand for gas is huge, the action time is short, the protection area is small, and the cost of fire extinguishing is high

In addition, the construction process of the traditional water mist system is relatively complicated, and it is easy to cause safety accidents such as fire due to welding and other processes

Moreover, due to the influence of water quality, environment, welding quality and other factors, it is easy to cause open welding, water leakage, air leakage and other phenomena in the later stage of system operation, and the system maintenance cost is relatively high

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