Thermally-conductive self-starting fire extinguishing device

Abstract

The utility model discloses a kind of heat-conducting self-starting fire extinguishing devices, including shell and cartridge, the one end of shell is provided with spout, cartridge is installed in shell, cartridge's ignition end surface faces spout, the shell is also installed with heat-conducting part, heat-conducting part is attached with the inner wall of shell, and heat-conducting part also extends to cartridge's ignition end surface, cartridge's ignition end surface is also installed with starting device, and starting device is contacted with heat-conducting part. By installing heat-conducting part in shell, heat-conducting part is attached with the inner wall of shell, starting device is contacted with heat-conducting part, and the ignition point of starting device is lower than the ignition point of aerosol generating agent in cartridge, after the temperature of fire extinguishing device shell rises, heat is transferred to starting device by heat-conducting part, when heat reaches the ignition point of starting device, starting device is ignited, the ignition end surface of cartridge that is ignited before aerosol generating agent cartridge deflagration is started, to reduce explosion risk.

Description

Technical Field

[0001] This utility model relates to the field of fire extinguishing device technology, and in particular to a heat-conducting self-starting fire extinguishing device. Background Technology

[0002] Thermal aerosol fire extinguishing devices are widely used due to their high extinguishing efficiency, small size, and environmental friendliness. To ensure the aerosol generator propellant column burns layer by layer, manufacturers typically use materials such as silicone, rubber, or plastic to create a protective sleeve 21 that wraps around the side surface of the aerosol generator 22, forming a propellant column 20. This prevents the flame at the ignition end 23 of the aerosol generator propellant column from igniting the side wall of the column, which would cause a sudden increase in the aerosol generator's activation surface, leading to an increase in gas production and a sharp rise in internal pressure within the fire extinguishing device.

[0003] However, when fire extinguishing devices are in a fire, there are bound to be situations where the starting harness fails to start or the controller or detector malfunctions, resulting in the fire extinguishing device not starting normally. The overall temperature of the fire extinguishing device in the fire gradually rises. When the temperature reaches the activation temperature of the aerosol generator, the heated surface of the aerosol generator column, that is, the side or circumference of the column, will suddenly burn and produce gas. If the surface that first reaches the preset temperature is not the ignition end 23, it will cause the coating layer to fail, resulting in the deflagration of the fire extinguishing device. Utility Model Content

[0004] The purpose of this invention is to provide a heat-conducting self-starting fire extinguishing device. A heat-conducting component is installed inside the housing, fitting snugly against the inner wall of the housing and extending to the ignition end face of the propellant column. An ignition device is installed on the ignition end face of the propellant column, contacting the heat-conducting component. The ignition point of the ignition device is lower than that of the aerosol generator inside the propellant column. After the temperature of the fire extinguishing device housing rises, heat is transferred to the ignition device through the heat-conducting component. When the heat reaches the ignition point of the ignition device, it ignites the ignition device, thus igniting the ignition end face of the propellant column before it explodes, thereby reducing the risk of explosion.

[0005] To achieve the above objectives, this utility model provides a heat-conducting self-starting fire extinguishing device, comprising a housing and a propellant column. One end of the housing is provided with a nozzle, and the propellant column is installed inside the housing with its ignition end face facing the nozzle. A heat-conducting component is also installed inside the housing, fitting against the inner wall of the housing and extending to the ignition end face of the propellant column. An ignition device is also installed on the ignition end face of the propellant column, contacting the heat-conducting component. The ignition point of the ignition device is lower than the ignition point of the aerosol generator inside the propellant column.

[0006] The heat-conducting component includes a bonding plate that is bonded to the inner wall of the housing. One end of the bonding plate is fixed with a first extension plate that extends to the ignition end face of the propellant column.

[0007] The end of the first extension plate away from the bonding plate is also fixed with a folding plate, and the end of the folding plate away from the extension plate is also fixed with a second extension plate, which is in contact with the ignition end face of the propellant column.

[0008] The heat-conducting component includes a first partition plate with a plurality of first through holes. A first extension ring is provided on the outer periphery of the first partition plate and fits against the inner wall of the housing. A receiving hole is provided in the middle of the first partition plate. A second extension ring is provided on the first partition plate at the receiving hole and extends to the ignition end face of the propellant column.

[0009] The bottom of the second extension ring is provided with a second partition, which is in contact with the ignition end face of the propellant column.

[0010] The second partition plate is provided with at least one second through hole.

[0011] The housing is also filled with coolant, which is located between the nozzle and the propellant column.

[0012] The starting device is an electronic igniter, and the ignition point of the agent on the electronic igniter is lower than the ignition point of the aerosol generator in the propellant column.

[0013] The starting device is a heat-sensitive agent, and the ignition point of the heat-sensitive agent is lower than that of the aerosol generator in the propellant column.

[0014] The starting device consists of an electronic ignition head and a heat-sensitive agent, the ignition point of which is lower than that of the aerosol generator inside the propellant column.

[0015] Compared with the prior art, this utility model has the following technical effects:

[0016] This invention features a heat-conducting component installed inside the casing, which fits snugly against the inner wall of the casing and extends to the ignition end face of the propellant column. An ignition device is also installed on the ignition end face of the propellant column, contacting the heat-conducting component. The ignition point of the ignition device is lower than that of the aerosol generator within the propellant column. As the temperature of the extinguishing device casing rises, heat is transferred to the ignition device through the heat-conducting component. When the heat reaches the ignition point of the ignition device, it ignites, thus igniting the ignition end face of the propellant column before it explodes, thereby reducing the risk of explosion. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below.

[0018] Figure 1 This is a cross-sectional structural diagram of the first embodiment of the present invention.

[0019] Figure 2 This is a cross-sectional structural diagram of the second embodiment of the present invention.

[0020] Figure 3 This is a cross-sectional structural diagram of the third embodiment of the present invention.

[0021] Figure 4 This is a cross-sectional structural diagram of the fourth embodiment of the present invention.

[0022] Figure 5 This is a half-sectional structural diagram of the first embodiment of the heat-conducting component of this utility model.

[0023] Figure 6 This is a half-sectional structural diagram of the second embodiment of the heat-conducting component of this utility model.

[0024] Figure 7 This is a half-sectional structural diagram of the third embodiment of the heat-conducting component of this utility model.

[0025] Figure 8 This is a half-sectional structural diagram of the fourth embodiment of the heat-conducting component of this utility model.

[0026] Figure label:

[0027] 10 housing, 11 nozzle;

[0028] 20 propellant column, 21 protective sleeve, 22 aerosol generator, 23 ignition end face;

[0029] Heat-conducting component 30, bonding plate 31, first extension plate 32, folding plate 33, second extension plate 34, first partition 35, first through hole 351, first extension ring 352, receiving hole 353, second extension ring 354, second partition 355, second through hole 356.

[0030] Electronic ignition head 40, wire 41, coolant 50, heat-sensitive agent 60. Detailed Implementation

[0031] The embodiments of the present invention are described in detail below. Examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, but should not be construed as limiting the present invention.

[0032] Example 1:

[0033] See Figures 1 to 4A heat-conducting self-starting fire extinguishing device includes a housing 10 and a propellant 20. One end of the housing 10 is provided with a nozzle 11. The propellant 20 is installed inside the housing 10, with the ignition end face of the propellant 20 facing the nozzle 11. A heat-conducting element 30 is also installed inside the housing 10. The heat-conducting element 30 is in contact with the inner wall of the housing 10 and extends to the ignition end face 23 of the propellant 20. An ignition device is also installed on the ignition end face 23 of the propellant 20. The ignition device is in contact with the heat-conducting element 30. The ignition point of the ignition device is lower than the ignition point of the aerosol generator inside the propellant 20.

[0034] By installing a heat-conducting element 30 inside the housing 10, the heat-conducting element 30 is in contact with the inner wall of the housing 10 and extends to the ignition end face 23 of the propellant column 20. The ignition end face 23 of the propellant column 20 is also equipped with an ignition device. The ignition device is in contact with the heat-conducting element 30, and the ignition point of the ignition device is lower than that of the aerosol generator in the propellant column. After the temperature of the fire extinguishing device housing rises, the heat is transferred to the ignition device through the heat-conducting element. When the heat reaches the ignition point of the ignition device, the ignition device is ignited. The ignition end face of the propellant column is ignited before the aerosol generator propellant column explodes, thereby reducing the risk of explosion.

[0035] Specifically, the heat-conducting component 30 is made of metal materials with good thermal conductivity, such as copper and aluminum.

[0036] In this embodiment, see Figure 1 , 2 5. The heat-conducting component 30 includes a bonding plate 31, which is bonded to the inner wall of the housing 10. One end of the bonding plate 31 is fixed with a first extension plate 32, which extends to the ignition end face 23 of the propellant 20.

[0037] During installation, the bonding plate 31 can be glued or welded to the inner wall of the housing 10. The first extension plate 32 extends to the ignition end face 23 of the propellant charge 20, see [reference]. Figure 1 The starting device is fixed to the first extension plate 32 by adhesive bonding. It should be noted that the width of the starting device should be greater than the width of the first extension plate 32 so that the ignition end face 23 of the starting device can be ignited.

[0038] Furthermore, a folding plate 33 is fixedly provided at the end of the first extension plate 32 away from the bonding plate 31, and a second extension plate 34 is fixedly provided at the end of the folding plate 33 away from the extension plate 32. The second extension plate 34 contacts the ignition end face 23 of the propellant 20. By providing the folding plate 33 and the second extension plate 34, the contact area between the starting device and the heat-conducting component 30 is increased. With this structure, the second extension plate 34 contacts the ignition end face 23 of the propellant 20, and the starting device is fixed to the folding plate 33 and the second extension plate 34 by adhesive bonding.

[0039] In this embodiment, see Figure 1The starting device is an electronic ignition head 40, and the ignition point of the agent on the electronic ignition head 40 is lower than the ignition point of the aerosol generator in the propellant column 20.

[0040] Specifically, the electronic ignition head 40 is bonded to the folding plate 33 and the second extension plate 34. The wire 41 of the electronic ignition head 40 passes through the hole in the housing 10. When the electronic ignition head 40 fails to start electronically, it can be started through the heat-conducting component 30.

[0041] The electronic igniter 40 employs existing technology, such as the electronic igniter disclosed in CN216047830U, whose ignition point of the propellant is lower than that of the aerosol generator within the propellant column 20. The propellant can be a heat-sensitive agent disclosed in CN222341853U. The ignition point of the aerosol generator within the propellant column 20 is between 300°C and 400°C, while the ignition point of the propellant is between 120°C and 190°C.

[0042] Example 2:

[0043] The difference between this embodiment and Embodiment 1 is that, see [link to Embodiment 1] Figure 6 The heat-conducting component 30 includes a first partition 35 with multiple first through holes 351 for facilitating the ejection of aerosol extinguishing agent. A first extension ring 352 is provided on the outer periphery of the first partition 35, fitting snugly against the inner wall of the housing 10. A receiving hole 353 is provided in the center of the first partition 35. A second extension ring 354 is provided at the receiving hole 353, extending to the ignition end face 23 of the propellant charge 20. The first extension ring 352 contacts the inner wall of the housing 10, resulting in a larger contact area and better heat conduction. In use, the starting device is mounted in a cylindrical structure within the second extension ring 354. The starting device also has a larger contact area with the interior of the second extension ring 354, facilitating the transfer of heat from the heat-conducting component 30 to the starting device.

[0044] Example 3:

[0045] Based on Example 2, see Figure 7 The bottom of the second extension ring 354 is provided with a second partition 355, which contacts the ignition end face 23 of the propellant charge 20. In use, the starting device can be installed inside the second extension ring 354, that is, on the upper side of the second partition 355, such as... Figure 4 As shown, this further increases the contact area between the starting device and the heat-conducting component 30, and facilitates the installation and fixation of the starting device.

[0046] Of course, see Figure 3 The starting device can be installed on the lower side of the second partition 355.

[0047] Furthermore, the second partition 355 is provided with at least one second through hole 356 to facilitate the spraying of aerosol extinguishing agent.

[0048] Example 4:

[0049] Based on Example 1, Example 2, or Example 3, the housing 10 is further filled with coolant 50, which is located between the nozzle 11 and the propellant column 20.

[0050] See Figure 3 , 4 and Figure 8 The first extension ring 352 of the heat-conducting element 30 extends upward to form a cup-shaped structure, and the coolant 50 is filled inside the first extension ring 352. The coolant 50 is prior art, for example, using the refrigerant disclosed in CN221655693U.

[0051] Example 5:

[0052] The difference from the above embodiments is that, in this embodiment, the starting device is a heat-sensitive agent 60, and the ignition point of the heat-sensitive agent 60 is lower than the ignition point of the aerosol generator in the propellant column 20.

[0053] The heat-sensitive agent 60 can be the heat-sensitive agent disclosed in CN222341853U.

[0054] Example 6:

[0055] The difference from the above embodiments is that, in this embodiment, the starting device includes an electronic ignition head 40 and a heat-sensitive agent 60, the ignition point of which is lower than that of the aerosol generator in the propellant column 20. In the event of failure of the electronic ignition head 40, the device can be started using the heat-sensitive agent 60.

[0056] See Figure 2 The heat-sensitive agent 60 can be wrapped around the outside of the electronic ignition head 40.

[0057] See Figure 4 The electronic ignition head 40 and the heat-sensitive agent 60 can also be separate. Figure 4 In the middle, the electronic ignition head 40 is located on the lower side of the second partition 355, and the heat-sensitive agent 60 is located on the upper side of the second partition 355.

[0058] Specifically, the ignition point of the aerosol generator in the propellant column 20 is between 300°C and 400°C. In this embodiment, the ignition point of the heat-sensitive agent 60 is between 120°C and 190°C.

[0059] The method of use or principle of this utility model:

[0060] After the temperature of the fire extinguishing device housing 10 rises, the heat is transferred to the ignition device through the heat-conducting component 30. When the heat reaches the ignition point of the ignition device, the ignition device is ignited. The ignition end face 23 of the aerosol generator is ignited before the aerosol generator column explodes, thereby reducing the risk of explosion.

Claims

1. A heat-conducting self-starting fire extinguishing device, comprising a housing (10) and a propellant column (20), wherein a nozzle (11) is provided at one end of the housing (10), and the propellant column (20) is installed inside the housing (10), with the ignition end face of the propellant column (20) facing the nozzle (11), characterized in that: A heat-conducting component (30) is also installed inside the housing (10). The heat-conducting component (30) is attached to the inner wall of the housing (10), and the heat-conducting component (30) extends to the ignition end face (23) of the propellant column (20). A starting device is also installed on the ignition end face (23) of the propellant column (20). The starting device is in contact with the heat-conducting component (30), and the ignition point of the starting device is lower than the ignition point of the aerosol generator in the propellant column (20).

2. The heat-conducting self-starting fire extinguishing device according to claim 1, characterized in that: The heat-conducting component (30) includes a bonding plate (31), which is bonded to the inner wall of the housing (10). One end of the bonding plate (31) is fixed with a first extension plate (32), which extends to the ignition end face (23) of the propellant column (20).

3. The heat-conducting self-starting fire extinguishing device according to claim 2, characterized in that: The first extension plate (32) is further fixed with a folding plate (33) at one end away from the bonding plate (31), and a second extension plate (34) is further fixed at one end away from the extension plate (32). The second extension plate (34) is in contact with the ignition end face (23) of the propellant column (20).

4. The heat-conducting self-starting fire extinguishing device according to claim 1, characterized in that: The heat-conducting component (30) includes a first partition (35), which has a plurality of first through holes (351). A first extension ring (352) is provided on the outer periphery of the first partition (35). The first extension ring (352) is attached to the inner wall of the housing (10). A receiving hole (353) is provided in the middle of the first partition (35). A second extension ring (354) is provided at the receiving hole (353) of the first partition (35). The second extension ring (354) extends to the ignition end face (23) of the propellant column (20).

5. The heat-conducting self-starting fire extinguishing device according to claim 4, characterized in that: The bottom of the second extension ring (354) is provided with a second partition (355), which is in contact with the ignition end face (23) of the propellant column (20).

6. The heat-conducting self-starting fire extinguishing device according to claim 5, characterized in that: The second partition (355) is provided with at least one second through hole (356).

7. The heat-conducting self-starting fire extinguishing device according to claim 1, characterized in that: The housing (10) is also filled with coolant (50), which is located between the nozzle (11) and the propellant column (20).

8. The heat-conducting self-starting fire extinguishing device according to any one of claims 1 to 7, characterized in that: The starting device is an electronic ignition head (40), and the ignition point of the agent on the electronic ignition head (40) is lower than the ignition point of the aerosol generator in the propellant column (20).

9. The heat-conducting self-starting fire extinguishing device according to any one of claims 1 to 7, characterized in that: The starting device is a heat-sensitive agent (60), and the ignition point of the heat-sensitive agent (60) is lower than the ignition point of the aerosol generator in the column (20).

10. The heat-conducting self-starting fire extinguishing device according to any one of claims 1 to 7, characterized in that: The starting device is an electronic ignition head (40) and a heat-sensitive agent (60), the ignition point of which is lower than that of the aerosol generator in the propellant column (20).

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