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Clean fire extinguishing agent and fire extinguishing device thereof

A fire extinguishing device and a clean technology, applied in fire prevention equipment, fire rescue, etc., can solve problems such as cost, complicated installation and maintenance, affecting the secondary use of lithium-ion batteries, and poor extinguishing effect, etc., to achieve fast gas production , wide spraying range, not easy to break down

Pending Publication Date: 2019-04-26
浙江华神消防科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the large amount of fire extinguishing agent and the need for storage in pressure vessels, there is still a problem of slow gas leakage that is difficult to solve when the cylinder valve is stored in a running vehicle. Therefore, the applicability of these two fire extinguishing devices is poor, and the cost and installation Maintenance is more complicated and cost-effective
However, the dry powder fire extinguishing device is not suitable for lithium-ion battery boxes with a complex structure because it is a covering type fire extinguishing device. The extinguishing effect is not very good when a fire occurs, and there will be a lot of dust left after the fire is extinguished, which cannot be cleaned, which affects the life of the lithium-ion battery. secondary use

Method used

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  • Clean fire extinguishing agent and fire extinguishing device thereof
  • Clean fire extinguishing agent and fire extinguishing device thereof
  • Clean fire extinguishing agent and fire extinguishing device thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] Embodiment 1: The clean fire extinguishing agent comprises the following components in parts by weight: 50 parts of perfluoro-2-methyl-3-pentanone, 2 parts of fluoroolefin, 1 part of calcium salt, and 1 part of adsorbent. The adsorbent is a mixture of 1,3-dihydroxy-5-tridecylbenzene and 1,3-dihydroxy-5-(6''-pentadecenyl)benzene, the two substances Both are silver birch extracts, have good hydrogen fluoride adsorption performance, and are low in cost. Alumina can also be used as the adsorbent. Similarly, fluoroolefins also play the role of adsorbing hydrogen fluoride, combined with adsorbents, fully guarantee the safety of fire extinguishing agents.

[0040] A fire extinguishing device that adopts a clean fire extinguishing agent includes a connected gas-producing bin 10 and a medium bin 20, and the media bin 20 is also connected with a nozzle 30 through a pipeline; the gas-generating bin 10 is provided with a gas-generating agent; the media bin 20 A piston 21 is arran...

Embodiment 2

[0048] Embodiment 2: In this embodiment, the fire extinguishing agent includes the following components in parts by weight: 48 parts of perfluoro-2-methyl-3-pentanone, 1.5 parts of fluoroolefin, 1 part of calcium salt, and adsorbent 1 serving. The adsorbent is a mixture of 1,3-dihydroxy-5-tridecylbenzene and 1,3-dihydroxy-5-(6''-pentadecenyl)benzene.

Embodiment 3

[0049] Embodiment 3: In this embodiment, the fire extinguishing agent includes the following components in parts by weight: 55 parts of perfluoro-2-methyl-3-pentanone, 3 parts of fluoroolefin, 2 parts of calcium salt, adsorbent 1.5 servings. The adsorbent is a mixture of 1,3-dihydroxy-5-tridecylbenzene and 1,3-dihydroxy-5-(6''-pentadecenyl)benzene.

[0050] Figure 5 with Figure 6 It is two sets of experimental data of fire extinguishing agent, corresponding to 5% fire extinguishing concentration (under the condition of 101KPa atmospheric pressure and specified temperature, the minimum volume percentage of gas fire extinguishing agent in the air required to extinguish a certain fire), different sensors around the fire scene temperature value. exist Figure 5 In the process, the fire extinguishing agent was sprayed from 38s and lasted for 20s. At about 43s, the flame was observed to be extinguished. At 53s, the spraying was completed. The spraying lasted for 15s, and the f...

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Abstract

The invention discloses a clean fire extinguishing agent and a fire extinguishing device thereof. The clean fire extinguishing agent comprises the following components: perfluor-2-methyl-3-pentanone,fluoro-olefin, a water absorption agent and an adsorbent. The fire extinguishing device comprises a gas generation cabin (10) and a medium cabin (20) which communicate, wherein the medium cabin (20) is connected with a nozzle (30) through a pipeline; the gas generation cabin (10) is internally provided with a gas generation agent; the medium cabin (20) is internally provided with a piston (21); aspace formed by the medium cabin (20), the piston (21) and the nozzle (30) is filled with the clean fire extinguishing agent. The clean fire extinguishing agent has the characteristics of being stablein performance, efficient in fire extinguishing, long-lasting in temperature reduction, clean and free of residue and good in insulating property, and recycling of batteries is not affected.

Description

technical field [0001] The invention relates to a fire extinguishing agent and a fire extinguishing device thereof, in particular to a clean type fire extinguishing agent and a fire extinguishing device thereof. Background technique [0002] New energy vehicles are an emerging hot industry. Due to the use of a large number of lithium batteries, the fire protection of new energy vehicles is an unavoidable focus. The fire protection of lithium batteries needs to achieve rapid cooling while extinguishing the thermal runaway fire of the battery, suppress the spread of thermal runaway between adjacent single cells, and avoid secondary fires or re-ignition accidents caused by the release of fire extinguishing media. [0003] Fire extinguishing devices and systems currently used in new energy vehicles include hot aerosol fire extinguishing devices, heptafluoropropane fire extinguishing devices, carbon dioxide fire extinguishing devices and dry powder fire extinguishing devices, etc...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A62D1/06A62D1/00A62C3/07A62C3/16
CPCA62C3/07A62C3/16A62D1/0028A62D1/06
Inventor 周建国周晓蓉朱波
Owner 浙江华神消防科技有限公司
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