Preheating type fine water mist fire extinguishing system and fine water atomizing nozzle

Abstract

The invention particularly relates to a preheating type fine water mist fire extinguishing system and a fine water atomizing nozzle. The problems that because an existing fire extinguishing system cannot form an effective asphyxia environment for fire with small calorific value, difficulty in fire extinguishing of fine water mist is caused is solved. The fine water mist fire extinguishing system comprises a fire alarm device, a control device and a fire extinguishing system. The fire extinguishing system comprises a filter, a pump set, a heat exchanger and a fine water atomization nozzle whichare sequentially connected with one another through pipelines. The heat exchanger is subjected to heat exchange through a combustion machine, the combustion machine is connected with the fine water atomization nozzle through an induced draft fan, a pipeline between the heat exchanger and the fine water atomizing nozzle is provided with a signal feedback device, and the signal feedback device is connected with the control device through a control line. The fine water atomization nozzle is arranged in the protection region, a flame detection device is arranged in the protection region, and theflame detection device is connected with the fire alarm device. According to the fine water mist fire extinguishing system and the nozzle, fires with little heating capacity such as an initial small fire, a class-A fire and a smouldering fire can be effectively extinguished.

Description

technical field [0001] The invention relates to the field of fire engineering, in particular to a preheating type fine water mist fire extinguishing system and a fine water atomization nozzle. Background technique [0002] Haloalkane series fire extinguishing agents have been widely used as high-efficiency and low-toxicity fire extinguishing agents, but studies have found that they have a strong destructive effect on the atmospheric ozone layer, so haloalkane is gradually banned from use internationally. Compared with the traditional water sprinkler system, the water mist system has the advantages of high fire extinguishing efficiency, small water consumption, and low water damage loss, and is recognized as one of the most effective technologies for replacing halon fire extinguishing. One of the main mechanisms of water mist fire extinguishing is suffocation. The water mist has a small diameter and a large specific surface area. After absorbing heat, it quickly vaporizes and...

AI Technical Summary

Problems solved by technology

[0004]The purpose of this invention is to solve the problem that the existing fire extinguishing system cannot form an effective suffocation environment for fires with small calorific value, which makes it difficult to extinguish fires with fine water mist, and provides a set of Water mist fire extinguishing system and water atomizing nozzles that can effectively extinguish incipient small fires, Class A fires, smoldering fires, etc., and the system can also achieve high fire extinguishing performance in colder environments

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