Carbon dioxide colloidal foam fire extinguishing device

A technology of carbon dioxide and colloidal foam, which is applied in fire rescue and other fields, can solve the problems of occupying the jet flow of jet equipment, reducing the fire extinguishing efficiency of jet equipment, and increasing the resistance of transport and jet, so as to achieve the reduction of fire extinguishing cost, high fire extinguishing efficiency and fire extinguishing ability. Effect

Inactive Publication Date: 2017-04-26
NANYANG NORMAL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

There are two problems: one is that the equipment may be blocked, even if it is not blocked, at least the equipment must be cleaned thoroughly after each use; the other is that the gas in the foam needs to occupy a large amount of injection flow of the injection equipment, reducing the fire extinguishing efficiency of the injection equipment , the third is that the solids in it will increase the resistance of delivery and injection, wasting energy

Method used

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  • Carbon dioxide colloidal foam fire extinguishing device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] Embodiment 1 (plane oil fire extinguishing)

[0041] In an open field, dig a hole with a depth of 5-6mm and an area of ​​about 1m 2 Cover the concave ground with a layer of plastic film, the edge of the plastic film exceeds the concave ground by about 10cm, and cover the excess with soil. Add diesel oil to the depression of the plastic film so that the oil surface can be covered with pits.

[0042] The fire extinguishing experiment process is as follows:

[0043] 1. Select the product of formula three. Add quantitative water into the dilution tank 18, start the agitator 16, then add the finished colloidal fire extinguishing agent in a ratio of 40:1, and stir well.

[0044] 2. Open the valve II13, and use the hydraulic pump 15 (0.6MPa) to deliver the diluent 17 to the mixing tank 24. When the liquid level reaches the middle and upper part of the liquid level gauge 7, close the hydraulic pump 15.

[0045] 3. Open the main valve of the liquid carbon dioxide cylinder, a...

Embodiment 2

[0051] Embodiment 2 (fire extinguishing by irregular oil surface combustion)

[0052] In an open field, dig a hole with a depth of 5-6mm and an area of ​​about 1m 2 Cover the concave ground with a layer of plastic film, the edge of the plastic film exceeds the concave ground by about 10cm, and cover the excess with soil. Set up horizontal and vertical timbers in the depressions of the plastic film, then pour diesel oil, and make the oil surface be full of pits.

[0053] The fire extinguishing experiment process is as follows:

[0054] 1. Select the product of formula three. Add quantitative water into the dilution tank 18, start the agitator 16, then add the finished colloidal fire extinguishing agent in a ratio of 40:1, and stir well.

[0055] 2. Open the valve II13, and use the hydraulic pump 15 (0.6MPa) to deliver the diluent 17 to the mixing tank 24. When the liquid level reaches the middle and upper part of the liquid level gauge 7, close the hydraulic pump 15.

[005...

Embodiment 3

[0062] Embodiment 3 (non-oil fire extinguishing)

[0063] In an open space, build three walls with bricks and mud, with a height of 1.5m and a length of 1m. A 1mm thick steel plate is covered on the top, and a fire torch (dipped in oil), wood, foam plastic, and waste clothes are placed in it. , piled up into 40cm thick combustibles.

[0064] The fire extinguishing experiment process is as follows:

[0065] 1. Select the product of formula three. Add quantitative water into the dilution tank 18, start the agitator 16, then add the finished colloidal fire extinguishing agent in a ratio of 40:1, and stir well.

[0066] 2. Open the valve II13, and use the hydraulic pump 15 (0.6MPa) to deliver the diluent 17 to the mixing tank 24. When the liquid level reaches the middle and upper part of the liquid level gauge 7, close the hydraulic pump 15.

[0067] 3. Open the main valve of the liquid carbon dioxide cylinder, adjust the pressure reducing valve 6 to keep the mixed liquid level...

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PUM

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Abstract

The invention discloses a carbon dioxide colloidal foam fire extinguishing device. The device comprises a mixing tank, wherein a diluent inlet pipe is arranged at the upper part of the mixing tank, and a gas inlet pipe and a mixed liquid outlet pipe are correspondingly arranged at the lower part of the mixing tank; the mixed liquid outlet pipe is sequentially connected with a high pressure pipe II and a sprayer; an one-way valve III, a valve III and a throttling valve are sequentially arranged on the mixed liquid outlet pipe along the liquid outgoing direction; the tail end of the gas inlet pipe is connected to a liquid carbon dioxide steel cylinder; an one-way valve I, a valve I and a pressure reduction valve are sequentially arranged from the mixing tank to the liquid carbon dioxide steel cylinder on the gas inlet pipe; the tail end of the diluent inlet pipe is connected and communicates with a high pressure pipe; the high pressure pipe communicates with a diluting tank through a hydraulic pump. According to the device, the foam sprayed by the device can form a colloidal isolating film at a fire site; the colloidal particles are fine, and are high in combination capacity, large in covering area and high in fire extinguishing capacity; and the fire extinguishing cost is low. The device is simple in structure, and easy to operate.

Description

technical field [0001] The invention belongs to the technical field of fire protection, and in particular relates to a carbon dioxide colloidal foam fire extinguishing device. Background technique [0002] In recent years, with the large-scale use of organic foam insulation materials in the construction field of our country, civil buildings and industrial plants have repeatedly caught fire, and the difficulty of fighting fires with clean water has become difficult. It often requires a large amount of water resources to be consumed. Also burned out, the effect of firefighting can only be reflected in preventing the fire from continuing to spread outside the fire isolation zone. For fires caused by leakage of oil and other flammable storage tanks, water can only cool down at most; covering with sand, first, it is difficult to obtain a large amount of sand in a short period of time, and second, it is actually difficult to operate against large fires. Theoretically speaking, it...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A62C5/00
CPCA62C5/004
Inventor 王利亚李波李森兰太军慧周也
Owner NANYANG NORMAL UNIV
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