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High efficiency fire extinguishing novel technology and device

A new technology, applied in the field of rotating water mist rapid fire extinguishing device, can solve the problems of inability to fully utilize the fine water mist to efficiently suffocate fire extinguishing, uneven distribution of spray density, large diameter of mist droplets, etc., to ensure a wide range of uniform coverage, Expand the effective atomization area and promote the effect of full atomization

Inactive Publication Date: 2015-07-01
BEIJING CHINA SCI PURIFICATION ECO TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] (2) Centrifugal force-assisted atomization will form a hollow cone, resulting in uneven distribution of spray density, and the ability of fine water mist to suffocate and extinguish fire efficiently cannot be fully utilized
[0010] The use of obstacles or coil spring structures will also cause most of the kinetic energy to be absorbed by them, and the diameter of the droplets produced by the atomizing nozzle is relatively large

Method used

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  • High efficiency fire extinguishing novel technology and device
  • High efficiency fire extinguishing novel technology and device
  • High efficiency fire extinguishing novel technology and device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] Embodiment 1: Measurement of pressure and flow rate of three-hole jet rotary nozzle

[0036] Install a three-hole jet rotary nozzle on a test device with a flow meter, use pressurized tap water as the fluid in the test, and adjust the nozzle water pressure to 0.5, 1.5, 2.0, 2.5, 3.0, 3.5 kg respectively. Use a special water tank and a weighing device to collect and weigh the water, and the spraying time is 2 minutes each time. The results are attached figure 2 shown. The experimental results show that: the flow rate of the nozzle has a good linear relationship with the pressure, which can be adjusted according to the needs.

Embodiment 2

[0037] Embodiment 2: the rotating speed of different nozzles under 3 kilograms of pressure

[0038] Install different rotating nozzles on the test device respectively, use clean water for the test, and measure the rotation speed of different nozzles under 3 kg of water pressure, as shown in Table 1. The experimental results show that under the pressure of 3 kg, the rotation speed of various types of nozzles is greater than 10000r / min, among which the rotation speed of the spiral atomization rotary nozzle is the lowest at 10000r / min, and the rotation speed of the three-hole jet rotary nozzle is the highest at 57000r / min min. In terms of speed stability, the stability of the three-hole jet and two-needle atomizing nozzle is the best.

[0039] Table 1 Rotation speed of different nozzles under 3 kg pressure

[0040]

Embodiment 3

[0041] Embodiment 3: the rotating speed of different nozzles feeding air in the air medium

[0042] Air was introduced from the nozzle, and the rotational speeds of different nozzles under different pressures were tested in the air medium, as shown in Table 2. Under the pressure of 0.5 kg, the maximum speed of the three-hole jet and two-needle atomizing nozzle is 11132r / min. Similar to the rotation speeds of different nozzles when water is fed, under the same pressure, the rotation speed of the single-helix mixing rotary nozzle is relatively low, and the rotation speed of the three-hole jet rotary nozzle is relatively high.

[0043] Table 2 Rotational speeds of different nozzles feeding air in air medium

[0044]

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Abstract

The invention relates to a water-saving high efficiency rotary water spray fire rapid-extinguishing device and technology. A core element rotation nozzle is characterized in that a nozzle is divided into a fixed part and two parts which are connected by a bearing and can produce high speed rotation by a nozzle counter-acting force. Through the nozzle design taking advantage of the situation, maximum conversion into surface energy for fully promoting atomization and rotational energy for promoting gas-liquid eddy flow formation is realized. Tap water can be introduced into the rotation nozzle, or a fire-fighting water system is directly connected to an automatic water spray fire extinguishing system fixed in a room or to an outlet or a pump outlet of a mobile fire-fighting water gun. The device and technology as efficient and simple fire extinguishing device and technology can be widely used and are suitable for solid and liquid fire extinguishing. The novel nozzle can produce small droplets and a large and uniform spraying covering zone, has good atomization effects under the pressure of 2kg, has a uniform spraying distance more than 10m, has better use effects under the condition of following wind, can instantly eliminate black smoke, and can inhibit fire head in a second and quench fire in ten seconds.

Description

technical field [0001] The invention relates to a water-saving and high-efficiency rotating water mist rapid fire extinguishing device and technology. Background technique [0002] A fire that gets out of control can wreak havoc on human beings. Fire is one of the most frequent and widespread major disasters that threaten public safety. The use and control of fire is a sign of the progress of human civilization. Fire prevention and fire hazard reduction are two important tasks of firefighting work, so the development of effective fire prevention and efficient and rapid fire extinguishing technology is very valuable. [0003] Combustion is a highly exothermic chemical oxidation process that requires the participation of air, and fire extinguishing is a process of rapidly preventing combustion by isolating and diluting air, covering the burning area, and cooling down, either alone or in combination. Early small fires and a small amount of oil fires are often covered with fi...

Claims

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Application Information

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IPC IPC(8): A62C31/05
CPCA62C31/05
Inventor 尹应武赵琰琰万鹏飞吴延庆卢英华赵玉芬
Owner BEIJING CHINA SCI PURIFICATION ECO TECH
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