Composition of water mist fire extinguishing system
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Composition of water mist fire extinguishing system

Views:0     Author:Site Editor     Publish Time: 2021-10-01      Origin:Site

Water mist fire extinguishing system refers to an automatic fire extinguishing system, which disperses water into fine water mist within a properly working pressure range through water mist nozzles, and sprays which are protected objects or spaces in a fire extinguishment event to suppress or control the fire.

 

The fire extinguishing mechanism of the water mist fire extinguishing system mainly uses three methods to achieve the purpose of fire control and fire extinguishing: absorbing heat (cooling), reducing oxygen concentration (suffocation), and blocking radiant heat. Compared with general water mist, the droplet diameter of fine water mist is small, and the volume of water is also small. Therefore, its fire extinguishing is different from the sprinkler system, which is similar to the gas fire extinguishing system, such as carbon dioxide. Different types of water mist fire extinguishing systems have different compositions and working principles. Can be roughly divided into the following two:

1.Pump-type water mist fire extinguishing system.

2.Bottle group water mist fire extinguishing system.

 

Pump-type water mist fire extinguishing system.

The water mist fire extinguishing system of the pump unit consists of water mist nozzles, pump units, water storage tanks, control valve units, safety relief valves, filters, signal feedback devices, fire alarm control devices, system accessories, pipelines, etc.

The pump-type water mist fire extinguishing system uses the water source water stored in the water storage tank and uses the group generated by the pump to be transported to the nozzle through the pipeline to generate the pressure of the water mist to transport high-pressure water.

 

Bottle group water mist fire extinguishing system.

The bottle group water mist fire extinguishing system is mainly composed of a water spray nozzle, water storage bottle group, gas storage bottle group, release valve, filter, drive device, distribution valve, safety release device, gas check valve, pressure reducing device, signal Feedback devices, fire alarm control devices, leak detection devices, connecting pipes, pipe fittings, etc.

The bottle group water mist fire extinguishing system uses high-pressure nitrogen stored in high-pressure gas cylinders as the power to press out a part of the water or gas stored in the water storage bottle group to mix into the water flow and transmit it to the pipeline Water mist nozzle. Main water mist.

 

The water mist nozzle in the water mist fire extinguishing system is the core component of the high-pressure water mist fire extinguishing system. It includes separate nozzles and closed nozzles. It contains one or more nozzles, consisting of the nozzle body, nozzle seat, nozzle, and diversion. It is composed of a device and a filter screen. Under a certain water pressure, the water is atomized by mechanical means such as centrifugation, impact or jet flow. Compared with other nozzles of the same flow rate, this nozzle has good water mist uniformity, less flow resistance loss, and greater initial kinetic energy and diffuseness. The centrifugal water mist nozzle of the fine water mist nozzle is sprayed from the nozzle hole under the action of the tangential direction of the rapid rotation of the water flow to achieve the atomization effect. The nozzle has the characteristics of suitable mist flow diameter and kinetic energy of large droplets. The nozzle has a filter.

 

Manshan Powaer Trading Co., Ltd produces fire Water Mist Nozzle and Spray Nozzle, which have been exported to more than 20 countries for many years and have a wide range of products to meet diversified needs.


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