High pressure water mist extinguishing system

Fire extinguishing mechanism of high pressure water mist fire extinguishing system

Characteristics of high pressure water mist fire extinguishing system

● Safety and environmental protection -- physical fire extinguishing with water as extinguishing agent, no damage or pollution to environment, objects and personnel in the reserve.

● High efficiency fire extinguishing - cooling speed is 100 times faster than that of general spray system. High pressure water mist is penetrating, can solve the flood and occlusion, but also can prevent the resurgence of the fire.

● Purification function - it can purify smoke and exhaust gas, and it is good for evacuation of personnel and fire-fighting and rescue work of fire fighters.

● Shielding radiation heat - good shielding effect on thermal radiation, to prevent fire spread, and quickly control the effect of fire.

● Water loss is small - the water consumption is only 1-5% of the water spraying system, which avoids the large amount of drainage damage to the equipment and the two pollution to the environment.

● Good electrical insulation - can effectively save the fire of live equipment.

● High reliability - after the system is installed, the system can be simulated and tested to increase the reliability of the system operation.

● Long system life - pump, valve and pipe fittings are corrosion resistant materials, the system life can be as long as 30 (60) years.

● Flexible preparation - can be used locally to protect a part of an independent facility or facility; protect the entire space as a fully submerged system.

● Easy to install - compared to the traditional fire fighting system, the pipe diameter is small, only 10-32mm, so that the installation costs will be reduced accordingly.

● Easy to maintain - only water as a fire extinguisher, in the standby state for atmospheric pressure, the daily maintenance workload and cost greatly reduced.

Applicable range of high pressure water mist fire extinguishing system

High pressure single fluid mist fire extinguishing system is suitable for fighting fire hazards such as class A, class B, class C and electric fire. Because of its advanced fire fighting mechanism, its use is basically free from the restrictions of the place, and can be applied in land, sea and space. It is especially effective for the partial protection of the high dangerous situation and the protection of the confined space. Such as: military equipment, petrochemical industry, coal industry, medicine, food processing industry, ancient buildings, archives, commercial buildings, subways, tunnels, large vehicles, ships, aerospace, electronic industry, electric power, fire brigade and police etc..

Schematic diagram of high pressure water mist fire extinguishing system

Main components: water mist fire extinguishing system includes equipment (high pressure) water mist pump group, high pressure ball valve (valve), seamless stainless steel pipe, sub control valve (valve area group), water mist nozzle (open nozzle, sprinkler nozzle), high-pressure spray gun box, mobile fire fighting equipment etc..

High pressure main pump

Technical parameter: PAH80 series high pressure pump, the pump body is made of high quality stainless steel 316L material, the rated output flow of single pump is 112L/min, the rated working pressure is 16MPa, and the maximum working pressure is 22MPa. The pump takes water itself as the lubrication medium of the friction parts, without adding lubricating oil. The output flow of the whole pump set is shown in the following table:

Zone control valve: see below in kind

Technical parameter: this electric stop valve is made of high quality 316L stainless steel. It is mainly used in the high pressure water mist fire extinguishing district control valve box. The rated operating pressure of the valve is 16MPa, the operating temperature is 4~60 degrees centigrade, the working medium is water, and the operating voltage is AC220V/DC24V. For details, specifications and models, please refer to the following table:

Nozzle (open type, closed type), nozzle

Water mist open sprinkler	Water mist closed sprinkler

Technical parameters: high pressure water mist nozzle is a number of atomizing nozzles (see above), installed according to a certain arrangement on the nozzle body, and can be divided into two forms: open nozzle and closed nozzle according to the mode of action.

Table 1 performance parameters of high pressure water mist open sprinkler

Table 1 performance parameters of closed sprinkler for high pressure water mist

High pressure water mist fire hydrant

Technical parameters: the fire hydrant box contains reels, 30M high-pressure hoses, spray guns, pressure gauges, high pressure ball valves, etc.. Model K=3.2, rated flow is 32L/min, rated working pressure 10MPa, spraying effective distance 6M.