Aerosol fire extinguishing device with cooling layer

Abstract

The utility model discloses an aerosol fire extinguishing device with a cooling layer, comprising a cylinder and a fire extinguishing agent column arranged inside the cylinder, one end of the fire extinguishing agent column is connected to the end of a starting component, a front cover is arranged at the front end of the cylinder, a nozzle is opened on the surface of the front cover, and a rear cover is arranged at the rear end of the cylinder, and a plurality of cooling layers with gaps are arranged in parallel from top to bottom inside the cylinder between the end of the fire extinguishing agent column and the front cover, and a plurality of rotatable coolant columns are arranged in each cooling layer; the utility model solves the problem that the coolant is easy to adhere, so that the coolant is not easy to adhere as a whole and block the flow channel of the fire extinguishing material, and the problem of explosion caused thereby is effectively avoided; and the circumferential surface of the coolant column can all contact with the high-temperature gaseous fire extinguishing material, so that it is heated more evenly, and the cooling effect is greatly improved.

Description

Technical Field

[0001] The utility model relates to the technical field of fire extinguishing, in particular to an aerosol fire extinguishing device with a cooling layer. Background Art

[0002] At present, the hot aerosol fire extinguishing device on the market usually consists of two parts: an aerosol generator and a coolant. In the past, the coolant used in the traditional hot aerosol fire extinguishing device was a physical coolant such as ceramic balls, which has a poor cooling effect. Therefore, the coolant used in most hot aerosol fire extinguishing devices is a chemical coolant (for example, the chemical coolant described in CN116570874A-a chemical coolant for aerosol fire extinguishing agent and a preparation method) or a mixture of a chemical coolant and a physical coolant.

[0003] After the aerosol fire extinguishing device is activated, the chemical coolant is affected by the high temperature of the hot aerosol fire extinguishing agent and will gradually melt. The coolant is squeezed together under the push of a large amount of gas. In the molten state, the coolants stick to each other. As the local temperature decreases, the adhered parts of the coolant become tight, which will cause the independent particles of each coolant to become a whole piece of coolant, which can easily block the channel of the fire extinguishing device and cause the fire extinguishing device to explode.

[0004] In addition, the position of the coolant is relatively fixed inside the fire extinguishing device, so that the heating surface of the coolant is also relatively fixed, which will cause uneven thermal decomposition of the coolant. The later the fire extinguishing device is sprayed, the worse the cooling effect of the coolant. Utility Model Content

[0005] The purpose of the utility model is to overcome the above-mentioned shortcomings and provide an aerosol fire extinguishing device with a cooling layer to solve the problems raised in the background technology.

[0006] In order to solve the above technical problems, the technical solution adopted by the utility model is: an aerosol fire extinguishing device with a cooling layer, comprising a cylinder and a fire extinguishing agent column arranged inside the cylinder, one end of the fire extinguishing agent column is connected to the end of the starting component, a front cover is provided at the front end of the cylinder, a nozzle is opened on the surface of the front cover, and a rear cover is provided at the rear end of the cylinder, and a plurality of cooling layers with gaps are arranged in parallel from top to bottom inside the cylinder between the end of the fire extinguishing agent column and the front cover, and a plurality of rotatable coolant columns are arranged in each cooling layer.

[0007] Preferably, the cooling layer comprises a mounting ring fixedly connected to the inner wall of the cylinder, a plurality of metal wires are arranged in parallel in the mounting ring, the metal wires pass through a through hole opened in the center of the coolant column, the coolant column can rotate freely on the surface of the metal wire and there are gaps between the plurality of coolant columns.

[0008] Preferably, the starting component is a thermistor structure or an electric starter structure.

[0009] Preferably, the outer side of the fire extinguishing agent column is also wrapped with a silica gel layer.

[0010] Preferably, the fire extinguishing agent charge is a cylindrical charge structure formed by pressing aerosol generating agent powder.

[0011] Preferably, the coolant charge is a cylindrical charge structure formed by pressing coolant powder.

[0012] Preferably, a sealing sticker is also affixed to the surface of the nozzle.

[0013] Beneficial effects of the utility model:

[0014] 1. The utility model solves the problem of easy adhesion of the coolant by arranging the coolant layers with gaps between them and the coolant charge columns with gaps between them and performing rotational motion, so that the coolant is not easy to adhere as a whole and block the flow channel of the fire extinguishing material, effectively avoiding the problem of explosion.

[0015] 2. The utility model provides a rotatable coolant column. When the surface of the coolant column is impacted by the gaseous fire extinguishing substance, it will rotate on the surface of the metal wire, so that the circumferential surface of the coolant column can contact with the high-temperature gaseous fire extinguishing substance, and the heat is more uniform, which greatly improves the cooling effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of an aerosol fire extinguishing device with a cooling layer;

[0017] Figure 2 for Figure 1 Schematic diagram of the top view of the middle cooling layer;

[0018] Figure 3 for Figure 2 Schematic diagram of the structure after removing the mounting ring. DETAILED DESCRIPTION

[0019] The present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments.

[0020] like Figure 1-3 As shown, an aerosol fire extinguishing device with a cooling layer comprises a cylinder 1 and a fire extinguishing agent column 2 arranged inside the cylinder 1, one end of the fire extinguishing agent column 2 is connected to the end of a starting component 3, a front cover 4 is provided at the front end of the cylinder 1, a nozzle 5 is opened on the surface of the front cover 4, and a rear cover 6 is provided at the rear end of the cylinder 1, and a plurality of cooling layers 7 with gaps are arranged in parallel from top to bottom inside the cylinder 1 between the end of the fire extinguishing agent column 2 and the front cover 4, and a plurality of rotatable coolant columns 7.1 are arranged in each cooling layer 7.

[0021] Preferably, the cooling layer 7 comprises a mounting ring 7.2 fixedly connected to the inner wall of the cylinder 1, and a plurality of metal wires 7.3 are arranged in parallel in the mounting ring 7.2, and the metal wires 7.3 pass through the through hole opened in the center of the coolant medicine column 7.1, and the coolant medicine column 7.1 can rotate freely on the surface of the metal wire 7.3, and there are gaps between the plurality of coolant medicine columns 7.1. With such a design, when the coolant medicine column 7.1 with a cylindrical structure is impacted by the airflow, there will always be a moment of unbalanced force, at which time the coolant medicine column 7.1 will rotate, and in the actual fire extinguishing process, when the gaseous material generated by the combustion of the fire extinguishing agent medicine column 2 moves upward, it is not necessarily a stable straight line direction, and when it is blocked by the coolant medicine column 7.1, the local airflow will be turbulent, resulting in a change in the direction of the local airflow, so that the coolant medicine column 7.1 is more likely to rotate after being impacted locally or on one side.

[0022] Preferably, the starting component 3 is a thermistor structure or an electric starter structure. When the starting component 3 is a thermistor structure, when a fire occurs in the outside, the flame can directly ignite the thermistor, thereby igniting the fire extinguishing agent column 2. When the starting component 3 is an electric starter structure, it includes an electronic ignition head and a starting harness. The electronic ignition head contacts one end of the fire extinguishing agent column 2. One end of the starting harness is connected to the electronic ignition head, and the other end passes through the back cover 6 to connect to the external power supply. When the starting component 3 is an electric ignition head structure, it is connected to a fire detection device, which is a temperature sensor and / or a smoke sensor. When a fire, overheating, etc. occurs, the fire detection device detects that the high temperature environment is generated outside due to the fire, and sends a signal to the microprocessor. The microprocessor controls the external power supply to work, so that the electronic ignition head ignites, thereby igniting the fire extinguishing agent column 2;

[0023] Preferably, the fire extinguishing agent column 2 is also wrapped with a silica gel layer 2.1. The silica gel layer 2.1 can prevent the cylinder 1 from being overheated during the fire extinguishing process.

[0024] Preferably, the fire extinguishing agent charge 2 is a cylindrical charge structure formed by pressing aerosol generating agent powder.

[0025] Preferably, the coolant charge 7.1 is a cylindrical charge structure formed by pressing coolant powder.

[0026] Preferably, a sealing sticker is also attached to the surface of the nozzle 5. The sealing sticker can prevent moisture in the outside air from entering the cylinder 1 along the nozzle 5 during normal storage and transportation of the fire extinguishing device, thereby avoiding the phenomenon of moisture absorption by the fire extinguishing agent column 2.

[0027] In this embodiment, the coolant is a chemical coolant or a mixture of a chemical coolant and a physical coolant. The chemical coolant is one or a combination of potassium hydrogen tartrate and ferrocene, or the chemical coolant described in CN116570874A - A chemical coolant for aerosol fire extinguishing agent and a preparation method; the physical coolant is one or a combination of iron shavings powder, ceramic powder, and goose warm stone powder.

[0028] In addition, the utility model also discloses a fire extinguishing method of the aerosol fire extinguishing device with a cooling layer, which comprises the following steps:

[0029] S1. When a fire occurs outside, the starting component 3 ignites the fire extinguishing agent column 2, and the fire extinguishing agent column 2 burns to produce high-temperature gaseous fire extinguishing substances; the high-temperature gaseous fire extinguishing substances pass through multiple cooling layers 7 and are cooled by the coolant column 7.1, and then ejected from the nozzle 5;

[0030] S2. Under the impact force of the gaseous fire extinguishing substance, when the surfaces of the multiple coolant charge columns 7.1 in the cooling layer 7 are subjected to uneven forces, a rotational motion will occur on the surface of the metal wire 7.3, so that the circumferential surfaces of the coolant charge columns 7.1 can all contact with the high-temperature gaseous fire extinguishing substance;

[0031] S3. Since there are gaps between the coolant grains 7.1 and they rotate, there will be no problem of coolant adhesion between the coolant grains 7.1.

[0032] The above embodiments are only preferred technical solutions of the present invention and should not be regarded as limitations of the present invention. The protection scope of the present invention shall be the technical solutions recorded in the claims, including equivalent replacement solutions of the technical features in the technical solutions recorded in the claims. That is, equivalent replacement improvements within this scope are also within the protection scope of the present invention.

Claims

1. An aerosol fire extinguishing device with a cooling layer, comprising a cylinder (1) and a fire extinguishing agent column (2) arranged inside the cylinder (1), one end of the fire extinguishing agent column (2) being connected to the end of a starting component (3), a front cover (4) being provided at the front end of the cylinder (1), a nozzle (5) being provided on the surface of the front cover (4), and a rear cover (6) being provided at the rear end of the cylinder (1), characterized in that: A plurality of cooling layers (7) with gaps therebetween are arranged in parallel from top to bottom inside the cylinder (1) between the end of the fire extinguishing agent column (2) and the front cover (4), and a plurality of rotatable coolant columns (7.1) are arranged inside each cooling layer (7).

2. The aerosol fire extinguishing device with a cooling layer according to claim 1, characterized in that: The cooling layer (7) comprises a mounting ring (7.2) fixedly connected to the inner wall of the cylinder (1), a plurality of metal wires (7.3) being arranged in parallel in the mounting ring (7.2), the metal wires (7.3) passing through a through hole opened in the center of the coolant charge (7.1), the coolant charge (7.1) being freely rotatable on the surface of the metal wires (7.3) and gaps existing between the plurality of coolant charge (7.1).

3. The aerosol fire extinguishing device with a cooling layer according to claim 1, characterized in that: The starting component (3) is a thermal wire structure or an electric starter structure.

4. The aerosol fire extinguishing device with a cooling layer according to claim 1, characterized in that: The outer side of the fire extinguishing agent column (2) is also wrapped with a silica gel layer (2.1).

5. The aerosol fire extinguishing device with a cooling layer according to claim 1, characterized in that: The fire extinguishing agent column (2) is a cylindrical column structure formed by pressing aerosol generating agent powder.

6. The aerosol fire extinguishing device with a cooling layer according to claim 1, characterized in that: The coolant charge (7.1) is a cylindrical charge structure formed by pressing coolant powder.

7. The aerosol fire extinguishing device with a cooling layer according to claim 1, characterized in that: A sealing sticker is also affixed to the surface of the nozzle (5).

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