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Method for quickly and efficiently extinguishing liquid fuel pool fire disaster through hollow ball body covering

A hollow sphere and liquid fuel technology, applied in fire rescue, fire prevention equipment, medical science, etc., can solve the problems of poor heat resistance and burning resistance of foam fire extinguishing agents, secondary pollution of fuel, and affecting fire extinguishing effect, etc., to achieve flame retardancy Good performance, good flame retardant performance, high melting point effect

Inactive Publication Date: 2017-06-30
北京众信远新能源技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a method for quickly and efficiently extinguishing fires in liquid fuel pools by covering them with hollow spheres. pollution problem

Method used

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  • Method for quickly and efficiently extinguishing liquid fuel pool fire disaster through hollow ball body covering

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Experimental program
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Effect test

preparation example Construction

[0017] The preparation method includes the following steps: first stirring and mixing the masterbatch with the flame retardant, and preparing a hemisphere through an injection molding process, and then combining the two hemispheres into a hollow covering sphere by welding; or mixing the masterbatch with the flame retardant The agent is stirred and mixed and melted, and the hollow covering ball is directly obtained through the hollow blow molding process.

[0018] The hollow plastic product is not only resistant to non-polar petroleum-based fuels, but also resistant to polar dangerous chemicals such as methanol gasoline, ethanol gasoline, acetone, ethyl acetate and the like.

[0019] Such as figure 1 As shown, the method for quickly and efficiently extinguishing a fire in a liquid fuel pool by covering a hollow sphere in an embodiment of the present invention includes the following steps:

[0020] S101: Realized by covering the surface of the liquid fuel with hollow spheres; c...

Embodiment 1

[0024] Put a certain volume of vehicle diesel oil into a circular oil pool with a diameter of 50cm, and ignite the liquid with an ignition rod to simulate a flammable liquid pool fire. After the flame burns vigorously, put the Φ38mm×1.8mm nylon 66 hollow sphere on the liquid surface, and the hollow sphere can form two layers of covering layers on the liquid surface. Experimental results show that 98% of pool fire flames can be extinguished within 10 seconds of dropping the hollow sphere.

Embodiment 2

[0026] Put a certain volume of methanol gasoline into a circular oil pool with a diameter of 50cm, and ignite the liquid with an ignition rod to simulate a flammable liquid pool fire. After the flame burns vigorously, put the Φ40mm×1.0mm polyimide hollow sphere on the liquid surface, and the hollow sphere can form two layers of covering layers on the liquid surface. Experimental results show that 95% of pool fire flames can be extinguished within 10 seconds of dropping the hollow sphere.

[0027] The main principle of fire extinguishing is: after the hollow sphere is placed on the fire liquid surface, a certain thickness of covering layer is formed. The covering layer can isolate most of the liquid surface from air, produce suffocation, and prevent the evaporation process that the liquid must go through when burning. At the same time, a certain thickness of the covering layer forms a "blocking effect" on the liquid surface, reduces the heat radiation of the flame to the liquid...

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Abstract

The invention discloses a method for quickly and efficiently extinguishing a liquid fuel pool fire disaster through hollow ball body covering. A liquid surface hollow ball body takes nylon 6, nylon 66, polyetheretherketone PEEK or polyimide PI as matrix materials and is added with an appropriate quantity of a fire retardant and prepared through stirring, mixing, extruding, pelleting, injection molding and welding techniques or a hollow blow molding technique. The matrix materials of the hollow ball body need to have the basic performance that the flame retardation is high, the melting point is high, chemical inertness is good, poisonous gas is not generated after decomposition; according to the matrix materials of the hollow ball body, the flame-retardant surface is no less than V-1, the melting point is no lower than 200 DEG C, thus it is ensured that the hollow ball body covering the burning liquid surface is not ignited, and a secondary disaster is avoided; after the fire disaster is extinguished, secondary pollution over flammable liquid is avoided; and the hollow ball body is placed to the position above the liquid surface of the burning flammable liquid, and a covering layer is formed above the liquid surface, so that the most liquid surface is isolated from air, heat radiation of flames over the liquid surface is reduced, the vessel wall effect is formed, and the fire extinguishing effect is achieved.

Description

technical field [0001] The invention belongs to the technical field of liquid fire extinguishing, and in particular relates to a method for quickly and efficiently extinguishing a fire in a liquid fuel pool by covering it with a hollow sphere. Background technique [0002] Combustible liquid fires bring great losses to economic construction, and also cause a large number of casualties. At the same time, in the process of extinguishing the fire, due to the large heat radiation, it is very difficult for firefighters to extinguish the fire. [0003] At present, foam fire extinguishing agents are widely used to extinguish liquid fires, but the foam formed by them has poor heat resistance and burn resistance, and the foam will burst and precipitate after a certain period of time, affecting the fire extinguishing effect. In addition, after foam fire extinguishing, it is easy to cause secondary pollution to fuel. Therefore, there is a need to develop a method for quickly and effi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A62C3/06A62C2/06A62D1/00
CPCA62C3/06A62C2/06A62D1/0007
Inventor 祝艳杰
Owner 北京众信远新能源技术有限公司