Silica gel foam extinguishing agent spraying device for gas-liquid mixed conveying

Abstract

The utility model relates to the technical field of fire extinguishing devices, and discloses a gas-liquid mixed conveying silica gel foam extinguishing agent spraying device which comprises a shell, a first box body and a second box body, the first box body and the second box body are arranged in the shell, the first box body is connected with a first liquid pump, and the second box body is connected with a second liquid pump. An outlet of the first liquid pump and an outlet of the second liquid pump are connected to the same spray gun, a first air pump is connected to a pipeline connecting the first liquid pump and the spray gun, and a second air pump is connected to a pipeline connecting the second liquid pump and the spray gun. And one-way valves are arranged on pipelines for connecting the liquid pump I, the liquid pump II, the air pump I and the air pump II with the spray gun. The device can be used for spraying a solid silica gel foam extinguishing agent, can be applied to fire spreading prevention and control of an energy storage power station, and is higher in fire extinguishing efficiency and effect.

Description

Technical Field

[0001] This utility model relates to the field of fire extinguishing equipment technology, and more specifically to a silicone gel foam fire extinguishing agent spraying device for gas-liquid mixing and transportation. Background Technology

[0002] Existing mobile foam fire extinguishing systems generally consist of water, foam fire trucks or motorized fire pumps, mobile foam generating devices, hoses, foam guns, and proportioning mixers. During firefighting, the proportioning mixer's two ends are connected to the fire hose and a pressurized water source. When water at a pressure of at least 0.6 MPa flows at high speed through the nozzles of the proportioning mixer, a vacuum (negative pressure) is created inside the proportioning mixer due to the lateral diffusion of the jet particles. The foam liquid in the foam liquid storage tank then enters the mixer through the suction pipe under atmospheric pressure, mixes with the pressurized water, and finally reaches a certain proportion of mixture. This mixture is then sprayed through the foam guns to extinguish the fire.

[0003] Existing mobile foam fire extinguishing systems suffer from heat radiation, upward hot airflow within the flame, and rapid airflow during the spraying of extinguishing agents. This results in a large amount of extinguishing agent jet failing to reach the burning liquid surface for extinguishing. Furthermore, the sprayed foam extinguishing agent has a high defoaming rate, requires a large amount, has low extinguishing efficiency, and suffers significant extinguishing agent loss. In addition, the large amount of extinguishing agent sprayed also causes environmental pollution. Utility Model Content

[0004] In view of this, the present invention provides a gas-liquid mixed transport silicone gel foam fire extinguishing agent spraying device, which can be used to spray solid silicone gel foam fire extinguishing agent, and can also be applied to fire spread prevention and control in energy storage power stations, with high fire extinguishing efficiency and effect.

[0005] To achieve the above objectives, the present invention provides a gas-liquid mixed delivery silicone gel foam fire extinguishing agent spraying device, comprising an outer shell and a housing 1 and a housing 2 disposed inside the outer shell. The housing 1 is connected to a liquid pump 1, and the housing 2 is connected to a liquid pump 2. The outlets of the liquid pump 1 and the liquid pump 2 are connected to the same spray gun. An air pump 1 is connected to the pipeline connecting the liquid pump 1 to the spray gun, and an air pump 2 is connected to the pipeline connecting the liquid pump 2 to the spray gun. One-way valves are provided on the pipelines connecting the liquid pump 1, the liquid pump 2, the air pump 1, the air pump 2, and the spray gun.

[0006] Preferably, the spraying device further includes a moving mechanism, and the housing is mounted on the moving mechanism.

[0007] Preferably, the moving mechanism includes a support frame and rollers, the support frame being used to support the housing, and the rollers being rotatably connected to the bottom of the support frame.

[0008] Preferably, the support frame is provided with a steering device, which is connected to the roller drive to control the rotation and steering of the roller.

[0009] Preferably, the spray gun includes a mixing chamber and a nozzle.

[0010] Preferably, the liquid pump one and liquid pump two, and the air pump one and air pump two are all electrically connected to the controller.

[0011] Preferably, the controller is a PLC controller.

[0012] As can be seen from the above technical solution, compared with the prior art, the gas-liquid mixed conveying silica gel foam fire extinguishing agent spraying device disclosed in this utility model is used to spray solid silica gel foam fire extinguishing agent. It has a simple overall structure, does not require a proportioning mixer or other units, and the sprayed silica gel foam can be used for various fire types such as oil pool fires, lithium battery fires, and metal dust fires. It can also be applied to fire spread control in energy storage power stations, with higher fire extinguishing efficiency and effectiveness. Furthermore, this utility model also has the following advantages:

[0013] 1. Due to the mobile mechanism, the spraying device can easily reach the fire area to extinguish the fire without external assistance;

[0014] 2. One-way valves are installed before the gas pipeline and liquid pipeline are combined and before the two liquid lines merge. This can effectively prevent liquid from entering the air pump and also effectively prevent the two liquid lines from mixing.

[0015] 3. The nozzle length at the spray gun outlet is adjustable. By increasing or decreasing the nozzle length, the contact time between the two liquids in the pipeline can be changed, thereby altering the foaming performance. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the overall structure of the gas-liquid mixed conveying silicone gel foam fire extinguishing agent spraying device of this utility model.

[0018] Figure 2 This is a schematic diagram showing the connection between the air pump, liquid pump, and spray gun of this utility model.

[0019] Explanation of reference numerals in the attached drawings: 1. Outer shell; 2. Box 1; 3. Box 2; 4. Liquid pump 1; 5. Liquid pump 2; 6. Air pump 1; 7. Air pump 2; 8. Spray gun; 9. Check valve; 10. Support frame; 11. Roller; 12. Controller; 13. Liquid circuit; 14. Air circuit; 15. Liquid inlet; 16. Liquid outlet. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. The following description of an exemplary embodiment is merely illustrative and is in no way intended to limit the present utility model or its application or use. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0021] Please see the appendix Figure 1-2 The present invention discloses a gas-liquid mixed delivery silicone gel foam fire extinguishing agent spraying device. The sprayed foam has a large flow rate, reaching 1L / s, which can extinguish fires of volatile liquids such as gasoline and naphtha. Furthermore, the sprayed foam has excellent fire resistance and heat radiation blocking ability. When sprayed on the surface of ordinary wooden doors, it can improve the fire resistance time of the wooden doors. When sprayed on the surface of energy storage cabinets, it can block the heat radiation propagation of the sprayed fire.

[0022] like Figure 1 As shown, the gas-liquid mixed conveying silicone gel foam fire extinguishing agent spraying device provided by this utility model includes a shell 1, a box 1 2, a box 2 3, a liquid pump 1 4, a liquid pump 2 5, an air pump 1 6, and an air pump 2 7.

[0023] Liquid pump 4 is directly connected to tank 2 via liquid inlet 15 and liquid pipeline. Tank 2 is used to hold agent A. Liquid pump 5 is directly connected to tank 3 via liquid inlet 15 and liquid pipeline. Tank 3 is used to hold agent B.

[0024] The two air pumps and two liquid pumps are powered by electricity, provided by AC power or lithium batteries. At the same time, the two air pumps and two liquid pumps are electrically connected to the controller 12 (PLC controller), which can independently control the start and stop of each air pump and liquid pump.

[0025] like Figure 2As shown, the air outlet of air pump 6 is connected to the liquid passage 13 of liquid pump 4 via air passage 14 and a one-way valve 9. After the gas and liquid fluids are mixed, they are connected to one end of the spray gun 8 via a one-way valve 9. Similarly, air pump 7 and liquid pump 5 are connected according to the above structure. The two mixed fluids are fully mixed in the spray gun 8 and fully reacted in the spray gun 8 to form foam, which is then sprayed out through the spray gun 8. The spray gun 8 includes an internal mixing chamber and a nozzle at the front end.

[0026] By adjusting the length of the mixing chamber extension rod and the shape of the nozzle in the spray gun 8, the dispersal time, solidification time, spray distance, and spray range of the sprayed foam can be changed. For example, using two 20cm sections of the mixing chamber extension rod, the sprayed foam travels 6 meters, solidifies in 30 seconds, and covers a 20-degree angle with a round nozzle and a 30-degree angle with a flat nozzle. If the extension rod is increased to four 20cm sections, the sprayed foam travels 9 meters, solidifies in 10 seconds, covers a 15-degree angle with a round nozzle and a 25-degree angle with a flat nozzle.

[0027] The spraying method of the silica gel foam fire extinguishing agent spraying device of this utility model is as follows:

[0028] For example, when applied to the application of solid gel foam fire extinguishing agent disclosed in Chinese patent CN118543065A, Class A and Class B agents are respectively contained in two tanks. One person holds the spray gun and starts the air pump and liquid pump through controller 2 or with the help of another person. After the liquid pump and air pump are started, the two liquid pumps deliver the agents in the two tanks to the liquid path 13 respectively. At the same time, the two air pumps draw in air and mix the gas into the corresponding liquid path 13 through the air path 14. The one-way valve 9 set before the air path 14 and liquid path 13 merge and before the liquids of the two liquid paths 13 merge can effectively prevent liquid from entering the air pump and can also effectively prevent the two liquids from mixing. The mixed liquids enter the spray gun 8 to react and then are sprayed out through the nozzle.

[0029] To further optimize the above technical solution and increase the portability of the silicone gel foam fire extinguishing agent spraying device, the outer shell 1 is installed on the mobile mechanism, which can quickly and easily reach the fire area for fire extinguishing.

[0030] The moving mechanism, serving as a support structure for the application device, includes a support frame 10 and rollers 11. The support frame 10 supports the outer casing 1, and the rollers are rotatably connected to the bottom of the support frame 10. A steering device is mounted on the support frame 10, which is connected to the rollers 11 for controlling their rotation and steering. The outer casing 1 and its two internal air pumps and two internal liquid pumps are all fixed to the support frame 10. It should be noted that the structure of the steering device is prior art and will not be described further here.

[0031] In this embodiment, the silicone gel foam sprayed by the spraying device has a good foaming effect and a low density of 0.2 g / cm³. 3 The spray flow rate is approximately 40 L / min. It is solid and has good adhesion, allowing it to adhere to the surfaces of materials such as photovoltaic panels, distribution cabinets, and wooden boards. The sprayed foam adheres well to the surface of distribution cabinets, remaining attached for up to 5 days without dissipating. When sprayed on door panels, it can increase the fire resistance time of wooden doors from 20 min to 36.5 min.

[0032] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in the embodiments of this utility model are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0033] In this utility model, unless otherwise explicitly specified and limited, the terms "connection," "fixing," etc., should be interpreted broadly. For example, "fixing" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0034] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the meaning of "and / or" throughout the text includes three parallel solutions; for example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0035] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A device for spraying silica gel foam fire extinguishing agent via gas-liquid mixing and transportation, characterized in that, Includes an outer shell (1) and a housing 1 (2) and a housing 2 (3) located inside the outer shell (1). The housing 1 (2) is connected to a liquid pump 1 (4), and the housing 2 (3) is connected to a liquid pump 2 (5). The outlets of the liquid pump 1 (4) and the liquid pump 2 (5) are connected to the same spray gun (8). An air pump 1 (6) is connected to the pipeline connecting the liquid pump 1 (4) and the spray gun (8), and an air pump 2 (7) is connected to the pipeline connecting the liquid pump 2 (5) and the spray gun (8). A one-way valve (9) is provided on the pipeline connecting the liquid pump 1 (4), the liquid pump 2 (5), the air pump 1 (6), the air pump 2 (7) and the spray gun (8).

2. The silica gel foam fire extinguishing agent spraying device for gas-liquid mixing and transportation according to claim 1, characterized in that, The spraying device also includes a moving mechanism, and the housing (1) is mounted on the moving mechanism.

3. The silica gel foam fire extinguishing agent spraying device for gas-liquid mixing and transportation according to claim 2, characterized in that, The moving mechanism includes a support frame (10) and rollers (11). The support frame (10) is used to support the outer shell (1), and the rollers (11) are rotatably connected to the bottom of the support frame (10).

4. The gas-liquid mixed delivery silicone gel foam extinguishing agent spraying apparatus according to claim 3, characterized in that, The support frame (10) is provided with a steering device, which is connected to the roller (11) for transmission, and is used to control the rotation and steering action of the roller (11).

5. The gas-liquid mixed delivery, silicone gel foam extinguishing agent spraying apparatus according to claim 1, characterized in that, The spray gun (8) includes a mixing chamber and a nozzle.

6. The gas-liquid mixed delivery, silicone gel foam extinguishing agent spraying apparatus according to claim 1, characterized in that, The liquid pump one (4) and liquid pump two (5), and the air pump one (6) and air pump two (7) are all electrically connected to the controller (12).

7. The silica gel foam fire extinguishing agent spraying device for gas-liquid mixing and transportation according to claim 6, characterized in that, The controller (12) is a PLC controller.

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