Fire protection fine water atomizing nozzle
Product performance parametersMaterial: 316SS, copper alloy (chrome plated)
Working pressure range: 8~15MPa
Flow coefficient: K=0.5, 0.6, 0.75, 0.8, 1.0, 1.2, 1.5, 2.1, 2.5, 3.0, 3.5.
Product structure, principle and characteristicsThe high-pressure fine water mist nozzle is composed of nozzle body, nozzle, nozzle core and filter screen and other parts. After a certain pressure of water enters the nozzle through the filter screen of the nozzle, the pressure water is spewed out from the nozzle hole at a high speed, which generates strong friction with the surrounding air, and the water is torn, thus forming fine water mist spraying along a certain Angle. The fine water mist sprayed by the high-pressure fine water mist sprinkler belongs to class I fine water mist, Dv0.9≤100μ, high pressure, good diffuse effect, the resident time of water mist after spraying is long, compared with other sprinkler heads, can reduce the intensity of fire extinguishing and fire control spray, less water consumption.
Product useThe high-pressure water mist sprinkler sprinkler system an important component of a, either through tiny droplets cooling fire plume, oxygen, water vapor and may radiate to control fire, fire fighting, usually installed on a fire danger place of production, warehouse, shopping malls, hotels, hospitals, theaters, office buildings, high-rise buildings and garages and other places. The nozzle should be drooping or horizontal installation, there are two forms of open nozzle and closed nozzle. Stainless steel nozzles are available for use in ships and corrosive environments.
Closed high pressure water mist nozzle:
High-pressure water mist closed sprinkler head is composed of charging power supply equipment, filter system, pressure regulating valve, water mist sprinkler head and other components and water supply pipeline network. Its components should also bear the larger working pressure caused by the pressure source in the system software under the operating temperature standard, and the total flow of the system software can be considered in the application of the high pressure water mist nozzle. With anti-rust treatment, anti-corrosion characteristics, industrial production of stainless steel plate high pressure water mist atomization cone Angle is large, fog shape is good; The fog flux is evenly distributed and the heat absorption efficiency is high. Fog momentum, good diffusion performance.
Performance characteristics of closed high pressure water mist nozzle:
1, for the environmental conditions easy to make the nozzle hole blockage, should choose the nozzle with corresponding protective measures and does not affect the effect of fine water mist spray;
2. For the floor and interlayer of the electronic information system room, it is advisable to choose a nozzle suitable for low space.
3. For closed system, nozzles with response time index (RTI) not greater than 50(m·s)0.5 should be selected, and their nominal operating temperature should be 30℃ higher than the highest environmental temperature, and the same thermal performance of nozzles should be used in the same protection area.
4. The sprinkler layout of the closed system should ensure that the fine water mist can spray evenly and completely cover the protected area, and should comply with the following provisions: The distance between the sprinkler head and the wall should not be greater than 1/2 of the maximum layout distance of the sprinkler head.
5, the distance between the sprinkler head and other shielding objects should ensure that shielding objects do not affect the normal spraying of fine water mist sprinkler; Compensation measures should be taken when unavoidable.
6, the distance between the temperature sensing component of the nozzle and the ceiling or the bottom of the beam should not be less than 75mm, and should not be greater than 150mm. When the ceiling is set in the place, the sprinkler head can be attached to the ceiling layout.