CN110420431B

CN110420431B - Fire-extinguishing fire-fighting brick

Info

Publication number: CN110420431B
Application number: CN201910741982.2A
Authority: CN
Inventors: 石明生; 车志敏; 齐晗利
Original assignee: Liuyang Hengxin Fireworks Manufacturing Co ltd
Current assignee: LIUYANG HENGXIN FIREWORKS MANUFACTURING Co.,Ltd.
Priority date: 2019-08-12
Filing date: 2019-08-12
Publication date: 2021-07-23
Anticipated expiration: 2039-08-12
Also published as: CN110420431A

Abstract

The invention discloses a fire extinguishing and fire fighting brick, which relates to the technical field of fire fighting equipment and comprises a brick body with a hollow structure, wherein a container is fixedly connected in the brick body, the container is made of metal materials, and is divided into an upper cavity and a lower cavity by a metal elastic sheet, and the length of the metal elastic sheet is greater than the width of the metal container so that the metal elastic sheet is in an arc shape in a normal state; the upper cavity is filled with fire extinguishing dry powder, and the lower cavity is communicated with the outside through at least one through hole; the metal elastic sheet is provided with at least one check hole, when the metal elastic sheet bends towards one side of the upper cavity, the check hole is closed, and when the metal elastic sheet bends towards one side of the lower cavity. The invention has the outstanding characteristics that the passive fire prevention of the fire-proof building material in the traditional technology is changed, the fire-proof building material is converted into the active fire extinguishing by utilizing the heat energy of fire, the fire extinguishing is triggered by the linkage between the fire extinguishing dry powder and the metal elastic sheet, and after the fire is extinguished, the fire extinguishing dry powder in the upper cavity can be supplemented through the through hole and the non-return hole, so that the aim of multiple fire extinguishing is fulfilled.

Description

Fire-extinguishing fire-fighting brick

Technical Field

The invention relates to the technical field of fire-fighting equipment, in particular to a fire-extinguishing brick.

Background

In the conventional technology, fire-proof building materials such as fire-proof plates, fire walls and the like usually achieve the purpose of fire prevention with the aim of flame retardance or heat insulation, but such building materials usually only can retard the flame retardance or reduce the spread of fire and cannot achieve the purpose of fire extinguishment.

Disclosure of Invention

The invention aims to solve the problems and provides a fire extinguishing and fire fighting brick.

In order to achieve the purpose, the invention adopts the following technical scheme:

the brick comprises a brick body, wherein the brick body is of a hollow structure, a container is fixedly connected in the brick body, the container is made of metal materials and is divided into an upper cavity and a lower cavity by a metal elastic sheet, and the length of the metal elastic sheet is larger than the width of the metal container so that the metal elastic sheet is in an arc shape in a normal state;

the upper cavity is filled with fire extinguishing dry powder, and the lower cavity is communicated with the outside through at least one through hole;

the metal elastic sheet is provided with at least one check hole, when the metal elastic sheet bends towards one side of the upper cavity, the check hole is closed, and when the metal elastic sheet bends towards one side of the lower cavity, the check hole is opened to enable the upper cavity to be communicated with the lower cavity.

Optionally, the metal container has an oval cross section, and gaps are formed between two sides of the long axis of the metal container and the brick body.

Optionally, the fire extinguishing dry powder is sodium bicarbonate.

Optionally, the non-return hole is of a conical structure, and the end with the larger large aperture is located on the upper cavity side.

Compared with the prior art, the invention has the following advantages:

metal shrapnel is crooked to the last cavity side of holding dress sodium bicarbonate under the normality, simultaneously because the sealing action in contrary hole, can prevent that the sodium bicarbonate granule from dropping, when sodium bicarbonate is heated and decomposes into carbon dioxide, make the internal expansion of taking place of epicoele and extrude metal shrapnel and make it become downwarping by the kickup gradually, simultaneously because the intercommunication in contrary hole, thereby make carbon dioxide gas and sodium bicarbonate powder pass contrary hole and through-hole and drop downwards under the effect of gravity and squeeze and isolated oxygen, play the purpose of putting out a fire, sodium bicarbonate is the heat absorption process by thermal decomposition simultaneously, can reduce the scene of a fire temperature.

The invention has the outstanding characteristics that the passive fire prevention of the fire-proof building material in the traditional technology is changed, the fire-proof building material is converted into the active fire extinguishing by utilizing the heat energy of fire, the fire extinguishing is triggered by the linkage between the fire extinguishing dry powder and the metal elastic sheet, and after the fire is extinguished, the fire extinguishing dry powder in the upper cavity can be supplemented through the through hole and the non-return hole, so that the aim of multiple fire extinguishing is fulfilled.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is an enlarged view of a portion a of FIG. 1 according to the present invention;

FIG. 3 is a schematic view of another embodiment of the present invention;

fig. 4 is an enlarged view of the portion b in fig. 3 according to the present invention.

In the figure: 1 brick body, 2 metal container, 3 metal shell fragment, 4 upper chamber, 5 lower chamber, 6 through-holes, 7 check holes, 8 gaps.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.

Referring to fig. 1 to 4, the brick body 1 can be any shape such as circular, rectangular and the like, the brick body 1 adopts a hollow structure, the inside of the brick body 1 is fixedly connected with a container 2, the container 2 is made of metal materials such as copper, aluminum, iron and the like, and is divided into an upper cavity 4 and a lower cavity 5 by a metal elastic sheet 3, the metal elastic sheet 3 adopts common cold-rolled spring plates such as 65Mn, 60Si2Mn, 50CrVA and the like, the specification can be between 1 mm and 3mm, and the length of the metal elastic sheet 3 is larger than the width of the metal container 2 so that the metal elastic sheet is arc-shaped under the normal state.

Preferably, the metal container 2 has an oval cross section, and gaps 8 are provided between both sides of the major axis of the metal container and the brick body 1, the arc surface of the oval structure has better pressure resistance, and the gaps 8 are provided to play a role in tolerance, so that when the metal elastic sheet 3 is excessively changed from an upper arc shape to a lower arc shape, the metal elastic sheet needs to have length compensation, so that the metal elastic sheet is changed from the upper arc shape to the lower arc shape, and the metal elastic sheet is prevented from being stuck.

The upper cavity 4 is filled with fire extinguishing dry powder, in the preferred embodiment of the invention, the fire extinguishing dry powder adopts sodium bicarbonate, the sodium bicarbonate starts to gradually decompose at the temperature of more than 50 ℃ to generate sodium carbonate, carbon dioxide and water, the sodium bicarbonate completely decomposes at the temperature of 270 ℃, and the lower cavity 5 is communicated with the outside through at least one through hole 6;

when the metal elastic sheet 3 is bent upwards into an upper arc shape, one side of the non-return hole 7 close to the upper cavity 4 is stretched, and one side of the non-return hole 7 close to the lower cavity 5 is compressed, so that the side with the small diameter is closed, as shown in fig. 2; when the lower arc-shaped part is bent downwards, one side of the non-return hole 7 close to the upper cavity 4 is compressed, but the side is larger in aperture and cannot be closed, and one side of the non-return hole 7 close to the lower cavity 5 is stretched, so that the hole with smaller diameter at the side is stretched, and the non-return hole 7 is opened,

when the metal elastic sheet 3 bends towards one side of the upper cavity 4, the non-return hole 7 is closed, and when the metal elastic sheet 3 bends towards one side of the lower cavity 5, the non-return hole 7 is opened to enable the upper cavity 4 to be communicated with the lower cavity 5.

The metal elastic sheet 3 bends towards the upper cavity 4 for bearing sodium bicarbonate in a normal state, and simultaneously, due to the sealing effect of the non-return hole 7, sodium bicarbonate particles can be prevented from falling off, when sodium bicarbonate is heated and decomposed into carbon dioxide, the upper cavity 4 is expanded and the metal elastic sheet 3 is squeezed and extruded to be gradually changed into downward bending from upward bending, meanwhile, due to the communication effect of the non-return hole 7, carbon dioxide gas and sodium bicarbonate powder pass through the non-return hole 7 and the through hole 6 to fall downwards under the action of gravity, so that oxygen is squeezed and isolated, the purpose of fire extinguishment is achieved, meanwhile, the heat decomposition of sodium bicarbonate is a heat absorption process, the temperature of a fire scene can be reduced, after fire extinguishment is achieved, the fire extinguishing dry powder in the upper cavity 4 can be supplemented through the through hole 6 and the non-return hole 7, the metal elastic sheet 3 is upwards jacked up and sealed.

While the foregoing disclosure shows illustrative embodiments of the invention, it should be noted that various changes and modifications could be made herein without departing from the scope of the invention as defined by the appended claims. The functions, steps and/or actions of the method claims in accordance with the embodiments of the invention described herein need not be performed in any particular order. Furthermore, although elements of the invention may be described or claimed in the singular, the plural is contemplated unless limitation to the singular is explicitly stated.

Claims

1. Fire extinguishing and fire fighting brick, including the brick body (1) of hollow structure, fixedly connected with container (2), its characterized in that in the brick body (1):

the container (2) is made of metal materials, the inside of the container is divided into an upper cavity (4) and a lower cavity (5) by a metal elastic sheet (3), and the length of the metal elastic sheet (3) is larger than the width of the metal container (2) so that the metal elastic sheet is arc-shaped in a normal state;

the upper cavity (4) is filled with fire extinguishing dry powder, the fire extinguishing dry powder adopts sodium bicarbonate particles, and the lower cavity (5) is communicated with the outside through at least one through hole (6);

the metal elastic sheet (3) is provided with at least one check hole (7), when the metal elastic sheet (3) is bent towards one side of the upper cavity (4), the check hole (7) is closed, and when the metal elastic sheet (3) is bent towards one side of the lower cavity (5), the check hole (7) is opened to enable the upper cavity (4) to be communicated with the lower cavity (5);

the non-return hole (7) is of a conical structure, and the end with the larger large aperture is positioned on the side of the upper cavity (4);

the metal elastic sheet (3) is bent towards the side of an upper cavity (4) for containing sodium bicarbonate in a normal state, sodium bicarbonate particles can be prevented from falling off due to the sealing effect of a check hole (7), when the sodium bicarbonate is heated and decomposed into carbon dioxide, the upper cavity (4) is expanded and the metal elastic sheet (3) is extruded to be gradually changed from upward bending to downward bending, meanwhile, due to the communication effect of the check hole (7), carbon dioxide gas and sodium bicarbonate powder penetrate through the check hole (7) and a through hole (6) to fall downwards under the action of gravity so as to isolate oxygen, the fire extinguishing purpose is achieved, meanwhile, the heat decomposition of the sodium bicarbonate is a heat absorption process, the temperature of a fire scene can be reduced, after fire extinguishing is finished, the fire extinguishing dry powder in the upper cavity (4) can be supplemented through the through hole (6) and the check hole (7), and the metal elastic sheet (3) is upwards pushed and sealed, thereby achieving the purpose of extinguishing fire for a plurality of times.

2. The fire extinguishing and extinguishing brick according to claim 1, characterized in that the metal container (2) is oval in cross-section and has gaps (8) between the brick body (1) and both sides of its major axis.