Fire extinguisher inner barrel with explosion venting opening

A technology of explosion vent and fire extinguisher, which is applied in fire rescue and other directions, and can solve problems such as objects falling out of the body, personal injury, injury to operators, etc., to ensure the safety of explosion venting, prevent explosion and deflagration, and reduce damage

Active Publication Date: 2015-12-23
SUZHOU LONG PORT FIRE CONTROL EQUIP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002]Existing portable fire extinguishing devices are widely used. Although the structure of portable fire extinguishing devices is small, it may cause explosion and deflagration due to excessive pressure accumulation, thus It will cause the device to generate strong recoil and injure the operator. At the same time, during the deflagration and explosion, fragments or objects at the nozzle will be separated from the body, causing unexpected damage to the surrounding people and property.
For example, in a portable aerosol fire extinguisher, when the powder column in the inner cylinder accidentally deflagrates, the hot aerosol will accumulate rapidly in the cylinder due to its small nozzle, and the pressure in the cylinder will rise sharply, forming a certain destructive force to act on the cylinder. On the top, one part will push the cylinder cover open and spray forward along the direction of the nozzle, and the other part will act on the cylinder body to generate recoil force in the opposite direction, which will cause serious personal injury when it acts on the user. Due to its high momentum, the flushed cylinder cover will cause accidental injury to surrounding people or objects after detaching from the cylinder

Method used

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  • Fire extinguisher inner barrel with explosion venting opening

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Embodiment Construction

[0016] The technical solutions of the present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0017] see figure 1 As shown, a fire extinguisher inner cylinder with a blast vent 22, the inner cylinder includes an upper cylinder 1 storing a coolant 11 and a lower cylinder 2 storing a fire extinguishing chemical 21 arranged along the up and down direction, and the upper cylinder 1 is slidable It is sleeved on the upper end of the lower cylinder 2, and the side wall of the lower cylinder 2 is also provided with an explosion vent 22, and the upper cylinder 1 has a shielding part that can be blocked on the explosion vent 22 or away from the explosion vent 22 .

[0018] see figure 1 As shown, the upper cylinder 1 has a static state and an explosion-venting state. When the upper cylinder 1 is in a static state, the upper cylinder 1 is statically sleeved on the outer wall of the lower cylinder 2, and the shielding pa...

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PUM

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Abstract

The invention discloses a fire extinguisher inner barrel with an explosion venting opening. The inner barrel comprises an upper barrel and a lower barrel, wherein the upper barrel is arranged on the vertical direction and stores a coolant, and the lower barrel stores a fire extinguishing medium; the upper barrel is sleeved on the lateral wall of the lower barrel in a sliding manner, and the explosion venting opening is formed in the side wall of the lower barrel; a sheltering part which can be sheltered on the explosion venting opening or far away from the explosion venting opening is arranged on the upper barrel, and the upper barrel has a stationary state and an explosion venting state. The inner barrel further comprises a control mechanism used for switching the working state of the upper barrel. As the explosion venting opening is formed in the side wall of the lower barrel, the condition that the inner barrel is exploded and deflagrated due to too high pressure in the barrel is effectively prevented when a fire extinguisher is used. Meanwhile, the explosion venting opening is formed in the lower barrel, so that the coolant cannot overflow from the explosion venting opening to influence the explosion venting safety during explosion venting.

Description

technical field [0001] The invention relates to the technical field of fire protection, in particular to a fire extinguisher inner cylinder with a blast vent. Background technique [0002] Existing portable fire extinguishing devices are widely used. Although the portable fire extinguishing device has a small structure, it may cause explosion and deflagration due to excessive pressure accumulation, which will cause the device to generate strong recoil and injure the operator. At the same time, during the deflagration and explosion, fragments or objects at the nozzle will be separated from the body, causing unexpected damage to the surrounding people and property. For example, in a portable aerosol fire extinguisher, when the powder column in the inner cylinder accidentally deflagrates, the hot aerosol will accumulate rapidly in the cylinder due to its small nozzle, and the pressure in the cylinder will rise sharply, forming a certain destructive force to act on the cylinde...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A62C13/76
Inventor 李忠刘红周玉清
Owner SUZHOU LONG PORT FIRE CONTROL EQUIP
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