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Method for cooling condensed fire extinguishing aerosol by using water or water solution

An aqueous solution and fire-extinguishing gas technology, applied in fire rescue and other directions, can solve the problems of increasing the manufacturing cost and use cost of aerosol fire-extinguishing devices, reducing the efficiency of aerosol fire-extinguishing, a large number of chemical cooling substances, etc. The effect of reducing the volume

Inactive Publication Date: 2013-05-01
宋永昌
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The current cooling method has the following problems: 1. It needs to use a large amount of chemical cooling substances
2. In the design of the fire extinguishing device, a large amount of space needs to be provided as an air guide channel and for placing heat-absorbing and cooling substances, which increases the manufacturing cost and use cost of the aerosol fire extinguishing device
3. Due to the large use of cooling substances and the increase of space, the passing speed of aerosol fire extinguishing substances is limited, which reduces the fire extinguishing efficiency of aerosols

Method used

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  • Method for cooling condensed fire extinguishing aerosol by using water or water solution
  • Method for cooling condensed fire extinguishing aerosol by using water or water solution

Examples

Experimental program
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Effect test

Embodiment 1

[0013] Embodiment one, as figure 1 , figure 2 Shown is a fire extinguishing hot aerosol generating device cooled by aqueous solution, wherein the aqueous solution ball 8 is a fire extinguishing aerosol cooling agent, which is made of an aqueous solution made of sodium bicarbonate dissolved in water, and then wrapped by a plastic film. structure. The outer orifice plate 1 is connected to the upper end of the casing 9 through the riveting parts 10, and the lower end of the casing 9 is connected to the bottom plate 12 of the cartridge 7 through the riveting parts 10, and the inner orifice plate 4 is arranged in the casing 9 and connected with the riveting parts 10 . The ventilation space between the inner orifice plate 4, the outer orifice plate 1 and the housing 9 is provided with microporous lightweight ceramsite 3 to form a mixing and filtering area of ​​the aerosol generating device. The upper end of the cartridge 7 is loosely connected with the inner hole plate 4, the ca...

Embodiment 2

[0014] Embodiment 2, as image 3 and Figure 4 , the water-based fire extinguishing agent ring 13 is a fire-extinguishing hot aerosol cooling agent, which is a ring structure formed by the water-based fire extinguishing agent wrapped by a rubber film; the water-based fire extinguishing agent ring 13 surrounds the periphery of the cartridge 7 of the aerosol generating device, and other structures are implemented with the same structure Embodiment 1, when the aerosol generating agent 6 in the cartridge 7 of the aerosol generating device reacts, a large amount of heat will be generated, and the water system fire extinguishing agent ring 13 will gradually rupture, and the water system fire extinguishing agent therein absorbs heat and evaporates, and combines with the gas The sol is mixed and released at the microporous lightweight ceramsite 3 to implement the purpose of fire extinguishing.

[0015] Through actual testing, when the aerosol generating agent 6 in the cartridge 7 of ...

Embodiment 3

[0016] Example 3, such as Figure 5 , the cooling liquid 14 is water or an aqueous solution, and the structure of the device is similar to that of Embodiment 1, only the lower surface of the inner hole plate 4 is coated with a sealing film 15, and the riveting part 10 between the upper cartridge sealing cover 5 and the cartridge 7 is cancelled. In this way, the heat generated when the aerosol generating agent 6 reacts will cause the sealing film 15 to rupture, and the cooling solution will vaporize and absorb heat.

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Abstract

A method for cooling condensed fire extinguishing aerosol by using water or water solution comprises the following steps: (1) the water or the water solution is wrapped by using a rubber membrane or a plastic membrane to produce a fire extinguishing aerosol coolant with a spherical, block-shaped or circular structure; (2) solute in the water solution can be a substance of salt for extinguishing fire or a water fire extinguishing agent, such as urea, ammonium phosphate, potassium bicarbonate, sodium bicarbonate, potassium chloride, a loaded stream extinguishing agent, a wet water extinguishing agent and the like; and (3) the fire extinguishing aerosol coolant prepared in the step (1) is filled at the periphery of a reactor of an aerosol generation device; when the aerosol generation device generates an aerosol fire extinguishing substance, a large amount of heat is generated; and a cooling fire extinguishing agent is gradually broken to release the water or the water solution under the influence of temperature, is heated for gasifying and cooling, and is mixed with the aerosol fire extinguishing substance to release for extinguishing fire. The method can quickly reduce the aerosol temperature, and can improve the fire extinguishing effect.

Description

technical field [0001] The invention relates to a method for cooling fire extinguishing hot aerosol with water or aqueous solution. Background technique [0002] Aerosol fire extinguishing technology has become a new type of halon replacement technology that has attracted more and more attention from all over the world due to its advantages of high fire extinguishing efficiency, convenient installation and use, no damage to the atmospheric ozone layer, solid state storage at room temperature, no need for pressure vessels, and low maintenance costs. , and developed rapidly. At present, the fire extinguishing aerosols actually used are generally hot aerosols. In order to ensure that the temperature of the hot aerosols used in the firefighting scene is safe and reliable, it is necessary to design a good cooling method when designing the aerosol fire extinguishing device. The quality of the cooling method directly affects a series of problems such as the fire extinguishing effi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A62C5/00
Inventor 曾悦雷宋永昌朱东华
Owner 宋永昌
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