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A kind of automatic fire extinguishing composition

A fire extinguishing composition and automatic fire extinguishing technology, applied to fire prevention equipment, etc., can solve the problems of complex and bulky device structure, increase the quality of fire extinguishing agent, weaken fire extinguishing performance, etc., achieve low cost, generate secondary fire hazards, and prevent secondary fires. The effect of secondary fire hazards

Active Publication Date: 2020-12-18
XIAN WESTPEACE FIRE TECHNOLOGY CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Its disadvantage is that the hot aerosol fire extinguishing agent will release a large amount of heat when the hot aerosol is released during the combustion reaction, which may cause secondary combustion. In order to effectively reduce the temperature of the device and the aerosol and avoid secondary fires, it is necessary to Increase the cooling system. Although the cooling material of the existing thermal aerosol fire extinguishing device can reduce the temperature of the product, it also greatly weakens the fire extinguishing performance of the product. In order to compensate for the loss of fire extinguishing performance caused by the cooling system, many products either reduce the fire extinguishing performance Level, or continue to increase the quality of the actual fire extinguishing agent, so that the volume of the product increases and the efficiency of use decreases, which leads to a complex and bulky device structure

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0043] Weigh 22g of phenolic formaldehyde and dissolve it completely with 18g of alcohol to make a phenolic formaldehyde solution.

[0044] Mix 20g of sodium bicarbonate, 36g of ammonium dihydrogen phosphate, and 22g of dicyandiamide with a 100-mesh screen, then add the phenolic solution to the mixed powder, stir evenly, and press it into a sheet-like structure of 1mm. Let dry and set aside.

[0045] Cut the dried sheet fire extinguishing composition into a rectangular patch of 3cm*3cm, and paste it on the top of the inner surface of the distribution box with a size of 10cm (length)*10cm (width)*20cm (high) with adhesive, wherein , One side of the distribution box is made of transparent plexiglass to facilitate observation of the fire extinguishing situation. Fill the Φ3cm container with n-heptane and place it at the bottom of the distribution box. The n-heptane was ignited, and it was observed that the fire extinguishing composition patch started within 5 seconds and exting...

Embodiment 2

[0047] Weigh 22g of nitrocellulose and dissolve it completely with 18g of acetone to make a nitrocellulose solution.

[0048] Mix 22g of potassium nitrate, 22g of potassium perchlorate, 11g of potassium bicarbonate and 22g of melamine with a 100-mesh screen, then add the nitrocellulose solution into the mixed powder, stir evenly, and press it into a 1mm tablet Shaped structure, let dry for later use.

[0049] Cut the dried sheet fire extinguishing composition into a rectangular patch of 3cm*3cm, and paste it on the top of the inner surface of the distribution box with a size of 10cm (length)*10cm (width)*20cm (high) with adhesive, wherein , One side of the distribution box is made of transparent plexiglass to facilitate observation of the fire extinguishing situation. Fill the Φ3cm container with n-heptane and place it at the bottom of the distribution box. The n-heptane was ignited, and it was observed that the fire extinguishing composition patch started within 8 seconds a...

Embodiment 3

[0051] Weigh 10 g of ethyl cellulose and dissolve it completely with 90 g of alcohol to make an ethyl cellulose solution.

[0052] Mix 10g of potassium chlorate, 11g of potassium hydrogen tartrate, 5g of potassium nitrate, 5g of nitroguanidine and 5g of guanidine carbonate with a 100-mesh screen, then add the ethyl cellulose solution to the mixed powder and stir evenly .

[0053]Use a spray gun to spray the mixed solution to the inner surface of the distribution box with a size of 10cm (length) * 10cm (width) * 20cm (height), and the spray thickness is 0.3mm. Among them, the material on one side of the distribution box is transparent Plexiglass, in order to observe the fire extinguishing situation. Fill the Φ3cm container with n-heptane and place it at the bottom of the distribution box. The n-heptane was ignited, and it was observed that the fire extinguishing composition patch started within 4 seconds and extinguished the fire within 8 seconds. The whole process was a flam...

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Abstract

The present invention relates to an automatic fire extinguishing composition and a fire extinguishing method thereof. The fire extinguishing composition can be coated or adhered to the vicinity of a firing point, and when a fire occurs, the automatic fire extinguishing composition absorbs heat produced in the fire field to perform a flameless chemical reaction, so as to produce a gas and a fire extinguishing material. The automatic fire extinguishing composition comprises a main fire extinguishing component, a gas production component and a binder, and the amount thereof is as follows in percent by mass: 30% to 65% of the main fire extinguishing component, 15% to 40% of the gas production component, and 15% to 40% of the binder. There is no need to equip a conventional detection and control unit for the automatic fire extinguishing composition of the present invention, and a starting device is not required. In the event of a fire, the fire extinguishing composition absorbs the heat produced in the fire field to perform a flameless chemical reaction, produces a gas and a fire extinguishing material, and realizes automatic fire extinguishing. The fire extinguishing composition is safe and reliable, and can avoid the occurrence of a secondary fire.

Description

technical field [0001] The invention relates to the field of novel fire extinguishing agents, more specifically to an automatic fire extinguishing composition. Background technique [0002] The fire extinguishing system currently on the market is usually composed of several parts such as a detection unit, a control unit and a fire extinguishing unit. When a fire breaks out, the detection unit first acts to transmit the fire signal to the control unit, and the control unit activates the fire extinguishing unit to extinguish the fire. These unit components have complex structures, take up a lot of space, and have delayed fire extinguishing time. [0003] Traditional fire extinguishing products are divided into gas fire extinguishers, water-based fire extinguishers and dry powder fire extinguishers according to the type of fire extinguishing agent filled. These products all need high-voltage drive to realize the automatic start of the system. There are many accessories in the...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A62D1/06
CPCA62D1/06
Inventor 张三学韩晓宇刘毅高超
Owner XIAN WESTPEACE FIRE TECHNOLOGY CO LTD
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