An aqueous fire extinguishing agent and a preparation method thereof are provided, which are used for making a throw-type fire extinguisher. The aqueous fire extinguishing agent is composed of two compositions of A and B. The composition A is a fortified water added with a flame retardant (e.g., one or more of ammonium chloride, diammonium hydrogen phosphate and ammonium polyphosphate), a wetting agent (e.g., alkyl polyglycoside) and a colloid (e.g., polyacrylamide solution). The composition B is a regulator. After the composition A and the composition B are mixed, a discharge rate/speed of fire extinguishing substances is increased, so that an escape passage/route can be opened up quickly.

An example fire extinguishing apparatus may include a housing comprising at least one escape hole, a first compartment within the housing containing a first extinguishant agent, and a second compartment within the housing containing a second extinguishant agent. The first compartment may be rotatable relative to the second compartment. The apparatus may further include a barrier disposed between the first compartment and the second compartment configured to separate the first extinguishant agent from the second extinguishant agent, and a barrier rupture mechanism. The barrier rupture mechanism may be configured to rupture the barrier in response to rotation of the first compartment relative to the second compartment to permit the first extinguishant agent to mix with the second extinguishant agent and cause a pressure generating reaction that forms an extinguishant mixture and forces the extinguishant mixture through the at least one escape hole of the housing.

An example fire extinguishing apparatus may include a housing comprising at least one escape hole, a first compartment within the housing containing a first extinguishant agent, and a second compartment within the housing containing a second extinguishant agent. The first compartment may be rotatable relative to the second compartment. The apparatus may further include a barrier disposed between the first compartment and the second compartment configured to separate the first extinguishant agent from the second extinguishant agent, and a barrier rupture mechanism. The barrier rupture mechanism may be configured to rupture the barrier in response to rotation of the first compartment relative to the second compartment to permit the first extinguishant agent to mix with the second extinguishant agent and cause a pressure generating reaction that forms an extinguishant mixture and forces the extinguishant mixture through the at least one escape hole of the housing.

When it comes to extinguishing destructive fires, one of the greatest tragedies of property loss in fires is the damage done by the water during the extinguishing process. It can be extreme. This invention eliminates the water and the resulting damage and greatly reduces the cost of cleanup and repair after the fire is extinguished.

Furthermore, the greatest threat to fire emergency personnel is close proximity to the fire. Often times, in order to put out a fire, such as in a building, a firefighter must enter the building to get access to the fire. This entails great danger and sometimes death or injury. This invention makes it easier and faster for firefighters to apply fire-extinguishing agents to the fire without entering the building.

Current technology does not offer these benefits.

When it comes to extinguishing destructive fires, one of the greatest tragedies of property loss in fires is the damage done by the water during the extinguishing process. It can be extreme. This invention eliminates the water and the resulting damage and greatly reduces the cost of cleanup and repair after the fire is extinguished.

Furthermore, the greatest threat to fire emergency personnel is close proximity to the fire. Often times, in order to put out a fire, such as in a building, a firefighter must enter the building to get access to the fire. This entails great danger and sometimes death or injury. This invention makes it easier and faster for firefighters to apply fire-extinguishing agents to the fire without entering the building.

Current technology does not offer these benefits.

Conventional fire extinguishers have limited use in a situation where a fire has become well established and where it is no longer possible to gain access to the seat of the blaze. The present invention solves this problem by providing a fire suppression device that is adapted to be thrown into a fire, and which will rupture to expel fire fighting agent over a useful area to help suppress the fire. The fire suppression device includes an ejection device and the device is configured such that it can spread fire fighting agent in its immediate vicinity as well as expel projectiles which can carry fire fighting agent a greater distance. This maximises the area of influence of the fire suppression device, and does not require the operator to enter the fire and expose themselves to danger.

Conventional fire extinguishers have limited use in a situation where a fire has become well established and where it is no longer possible to gain access to the seat of the blaze. The present invention solves this problem by providing a fire suppression device that is adapted to be thrown into a fire, and which will rupture to expel fire fighting agent over a useful area to help suppress the fire. The fire suppression device includes an ejection device and the device is configured such that it can spread fire fighting agent in its immediate vicinity as well as expel projectiles which can carry fire fighting agent a greater distance. This maximises the area of influence of the fire suppression device, and does not require the operator to enter the fire and expose themselves to danger.

The present disclosure relates to an inner cylinder of an explosion-venting-type aerosol fire extinguishing device, including a cylinder body (3) and a cylinder cover component (4) arranged on one end of the cylinder body (3), and an explosion-venting device arranged on the cylinder body (3). The explosion-venting device includes a friction layer (11), a connecting rod (12), a guiding unit (13), and a limiting device (14). The connecting rod (12) are connected with the cylinder cover component (4). The friction layer (11) is provided between the connecting rod (12) and the cylinder body (3). The friction layer (11) provides a frictional resistance and a buffering force for the connecting rod (12) when the connecting rod (12) is displaced, under the guidance of the guiding unit (13), along a direction that a hot air stream of the cylinder body (3) is jetting towards. The guiding unit (13) is a device capable of providing guidance for the connecting rod (12) when the connecting rod (12) is moving. The limiting device (14), the cylinder cover component (4), and the connecting rod (12) are fixedly connected. The limiting device (14) limits the connecting rod (12) when an extremity thereof slides to the cylinder cover component (4). The present disclosure uses primarily the movement and limiting of the explosion-venting device to consume kinetic energy generated by deflagration, thus achieving the goal of safe and effective explosion ventilation, and preventing a grain (7) from causing injuries and damages when deflagrated.

The present disclosure relates to an inner cylinder of an explosion-venting-type aerosol fire extinguishing device, including a cylinder body (3) and a cylinder cover component (4) arranged on one end of the cylinder body (3), and an explosion-venting device arranged on the cylinder body (3). The explosion-venting device includes a friction layer (11), a connecting rod (12), a guiding unit (13), and a limiting device (14). The connecting rod (12) are connected with the cylinder cover component (4). The friction layer (11) is provided between the connecting rod (12) and the cylinder body (3). The friction layer (11) provides a frictional resistance and a buffering force for the connecting rod (12) when the connecting rod (12) is displaced, under the guidance of the guiding unit (13), along a direction that a hot air stream of the cylinder body (3) is jetting towards. The guiding unit (13) is a device capable of providing guidance for the connecting rod (12) when the connecting rod (12) is moving. The limiting device (14), the cylinder cover component (4), and the connecting rod (12) are fixedly connected. The limiting device (14) limits the connecting rod (12) when an extremity thereof slides to the cylinder cover component (4). The present disclosure uses primarily the movement and limiting of the explosion-venting device to consume kinetic energy generated by deflagration, thus achieving the goal of safe and effective explosion ventilation, and preventing a grain (7) from causing injuries and damages when deflagrated.

To provide an extinguishant composition that can be used as an extinguishant in the event of a fire, and an aerosol-generating automatic fire-extinguishing device in which the extiguishant is used. An extinguishant composition and an aerosol-generating automatic fire extinguishing device containing the extinguishant composition, said composition being characterized in containing 20-50% by mass of a fuel and 80-50% by mass of a chlorate, and further containing 6-1000 parts by mass of a potassium salt in relation to a total of 100 parts by mass of the fuel and the chlorate, the extinguishant composition having a thermal decomposition starting temperature in the range of over 90? C. to 260? C.