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Suspended superfine dry powder self-service fire extinguishing device

A technology of ultra-fine dry powder and fire extinguishing device, which can be used in fire rescue and other fields, and can solve the problems of secondary disasters caused by gunpowder and excessive dry powder deposition, and achieve strong eruption, uniform distribution, and improved spraying effect

Active Publication Date: 2016-04-06
BEIJING BEIJI IND CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disadvantage of this method is: on the one hand, this method requires regular maintenance and inspection of the pressure in the bottle; on the other hand, the high-pressure gas in the bottle will become a potential source of danger
The disadvantages of this method are: 1. Excessive dry powder deposition will be generated under the injection port; 2. The existence of gunpowder will increase the possibility of secondary disasters

Method used

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  • Suspended superfine dry powder self-service fire extinguishing device
  • Suspended superfine dry powder self-service fire extinguishing device
  • Suspended superfine dry powder self-service fire extinguishing device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] Such as figure 1 As shown, the suspended ultrafine dry powder self-service fire extinguishing device of the present invention mainly includes a bottle body 1 and a gas generator 2 . The bottle body 1 is in the shape of a vase, and its two ends are divided into an open end 11 and a blind end 13. The blind end 13 is located at the bottom of the bottle body 1, and the mouth of the bottle body 1 has a gradually narrowing converging section 15 similar to an inverted cone. , the end of the converging section 15 forms the open end 11 of the bottle body 1 . The opening end 11 gradually expands to form an expansion section 16 similar to a positive cone, and the end of the expansion section 16 forms an injection port 12 . The narrow opening of the extension section 16 is connected to the opening end 11, and a prefabricated diaphragm 4 is fixed between the narrow opening of the extension section 16 and the opening end 11, for blocking the ultrafine dry powder fire extinguishing a...

Embodiment 2

[0033] Such as Figure 4 As shown, the difference between this embodiment and Embodiment 1 is that a deflector plate 9 for diverting ultra-fine dry powder fire extinguishing agent is erected outside the injection port 12 through a bracket 8 . Since the ultrafine dry powder fire extinguishing agent is a solid particle, after high-speed injection, some ultrafine dry powder fire extinguishing agent particles collide, part of the momentum is lost, and they fall vertically under the action of gravity and high-pressure gas thrust, and it is easy to form a deposition area at the injection port 12. Make superfine dry powder fire extinguishing agent can't be effectively utilized. In the present invention, a cylindrical shroud 7 is arranged on the outside of the converging section 15 and the expanding section 16 , and a fixed surface 10 is horizontally arranged on the port of the shroud 7 near the injection port 12 . The fixed surface 10 is an annular plane, and the end of the extensio...

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Abstract

The invention discloses a suspension-type ultrafine dry powder self-service fire-extinguishing device. The suspension-type ultrafine dry powder self-service fire-extinguishing device comprises a bottle body and an injection orifice. One end of the bottle body is a blind end and the other end of the bottle body is an open end. The injection orifice is connected to a tail portion of the open end. An inner cavity of the bottle body is communicated with a middle part of the injection orifice. The suspension-type ultrafine dry powder self-service fire-extinguishing device is characterized in that an outer side of the blind end of the bottle body is provided with a gas generator; a gas outlet of the gas generator is communicated with the inner cavity of the bottle body by a through-hole of the blind end; a prefabricated diaphragm for sealing a fire-extinguishing agent in the bottle body is arranged between the injection orifice and the tail portion of the open end; and the prefabricated diaphragm is provided with a prefabricated groove. In a non-working state, an ultrafine dry powder fire-extinguishing agent is stored in the bottle body and the interior of the bottle body is in a pressure-free state. When a fire disaster occurs, the gas generator is started and high-pressure gas is produced rapidly and then enters into the bottle body; and when the pressure in the bottle body reaches to a certain value, the high-pressure gas breaks through the prefabricated diaphragm and then the high-pressure gas with the ultrafine dry powder fire-extinguishing agent stored in the bottle body is ejected from the injection orifice.

Description

technical field [0001] The invention relates to the technical field of fire fighting and fire extinguishing, in particular to a suspended superfine dry powder self-service fire extinguishing device. Background technique [0002] At present, the fire extinguishing media equipped with fire extinguishers mainly include water, halon fire extinguishing agent, carbon dioxide fire extinguishing agent, foam fire extinguishing agent and dry powder fire extinguishing agent. Among them, water is widely used as a common fire extinguishing medium, but the fire extinguishing efficiency is low, and it cannot exert fire extinguishing performance for some oils, electrical appliances, active metals, chemicals, impermeable combustibles and expensive equipment, and due to water pressure, The effective height that can be reached is limited, so there are great limitations. Halon fire extinguishing agents are currently banned due to their high toxicity and damage to the ozone layer. Compared wit...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A62C35/11
Inventor 吴太平菅茂生王绍臣张娜娜
Owner BEIJING BEIJI IND CO LTD
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