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A fire extinguishing agent that is stored in a liquid state
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A technology of storage state and fire extinguishing agent, which is applied in the direction of fire prevention equipment, etc., can solve problems such as fire resurgence, and achieve the effect of preventing secondary resurgence and strong physical cooling ability
Active Publication Date: 2019-02-19
GUO ANDA
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Summary
Abstract
Description
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Problems solved by technology
The fire extinguishing mechanism of the existing fire extinguishing agent is mainly completed by eliminating the effective combustion carrier, that is, the chain growth reaction in the flame is blocked.
[0006] In the event of a fire, often after the first fire extinguishing, the combustibles and combustion-supporting substances still exist, and the temperature rises after a period of time, resulting in the phenomenon of re-ignition of the fire. agent and fire extinguishing device
Method used
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Effect test
Embodiment 1
[0025] By volume, water, foam, 715010 parts; liquid heptafluoropropane 80 parts, dry ice 20 parts
[0026] 1. According to the size of the steel cylinder, add water, foam, 7150, etc. into the steel cylinder in proportion, the ratio is 2 parts of water, 4 parts of foam, and 4 parts of 7150;
[0027] 2. Add heptafluoropropane fire extinguishing agent in proportion, and mix under the condition that the pressure is higher than normal temperature and the gas of heptafluoropropane is converted into liquid;
[0028] 3. Finally, fill the carbon dioxide fire extinguishing agent and mix it under the condition that the pressure is higher than normal temperature and the carbon dioxide gas is converted into liquid.
Embodiment 2
[0030] By volume, water, foam, 71502 parts; liquid heptafluoropropane 70 parts, dry ice 20 parts
[0031] 1. Add liquid fire extinguishing agent, water, foam and 7150 into the steel cylinder in proportion to the size of the steel cylinder container, the ratio is 1 part of water, 0.5 parts of foam and 7150;
[0032] 2. Add heptafluoropropane fire extinguishing agent in proportion, and mix under the condition that the pressure is higher than normal temperature and the gas of heptafluoropropane is converted into liquid;
[0033] 3. Finally, fill the carbon dioxide fire extinguishing agent and mix it under the condition that the pressure is higher than normal temperature and the carbon dioxide gas is converted into liquid.
Embodiment 3
[0035] According to the volume ratio, 5 parts of water, foam, 7150, etc.; 80 parts of liquid heptafluoropropane, 20 parts of dry ice
[0036] 1. Add liquid fire extinguishing agent, water, foam and 7150 to the steel cylinder in proportion to the size of the steel cylinder container. The ratio is 2 parts of water and 2 parts of foam, and 1 part of 7150;
[0037] 2. Add heptafluoropropane fire extinguishing agent in proportion, and mix under the condition that the pressure is higher than normal temperature and the gas of heptafluoropropane is converted into liquid;
[0038] 3. Finally, fill the carbon dioxide fire extinguishing agent and mix it under the condition that the pressure is higher than normal temperature and the carbon dioxide gas is converted into liquid.
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PUM
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Abstract
The invention discloses a fire extinguishing agent with a liquid storage state. The fire extinguishing agent is prepared from the following components according to the volume ratio: 2 to 10 parts of a liquid fire extinguishing agent, 50 to 85 parts of liquid heptafluoropropane and 15 to 45 parts of dry ice. The fire extinguishing agent disclosed by the invention integrates the physical and chemical fire extinguishing advantages of the above 2 fire extinguishing agents and has physical and chemical fire extinguishing principles; meanwhile, due to the characteristic of carbon dioxide, the fire extinguishing agent is stored under high pressure, so that the property of the carbon dioxide is changed, and the dry ice can be formed; the density of the dry ice is close to that of liquid, and the viscosity is close to that of gas; the mixed fire extinguishing agent is extremely high in physical and chemical fire extinguishing property; meanwhile, the dry ice is high in physical cooling property, and can prevent secondary after-combustion caused by temperature rise. The liquid fire extinguishing agent can be changed according to the type of fire, and can extinguish various types of fire.
Description
technical field [0001] The invention relates to a fire extinguishing agent whose storage state is liquid. Background technique [0002] With the rapid development of the national economy and the continuous improvement of people's livelihood and safety awareness, fire-fighting equipment has been widely used, and fire-fighting facilities and fire-extinguishing devices are also equipped in many occasions. [0003] The fire extinguishers currently used in fire fighting mainly include foam fire extinguishing agent, carbon tetrachloride fire extinguishing agent, dry powder fire extinguishing agent, heptafluoropropane fire extinguishing agent, carbon dioxide fire extinguishing agent, etc., and their scope of application is not wide enough, and there are certain limitations. [0004] According to the traditional combustion theory, the combustion process is an interaction process of the three elements of combustibles, combustion-supporting substances and temperature. To extinguish a...
Claims
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Application Information
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