Sound wave reinforced fire extinguisher based on phased array principle

Abstract

The utility model discloses a sound wave reinforced fire extinguisher based on a phased array principle, which belongs to indoor fire extinguishing equipment and comprises a main body structure, and a mounting cavity is formed in the main body structure; a dust cover structure is assembled at the front part of the main body structure, a plane area is formed between the main body structure and the dust cover structure, and a plurality of sound production units are mounted at the plane area; the sound production units are arranged on the plane area in an array mode and form a phased array sound production system. According to the sound wave reinforced fire extinguisher based on the phased array principle, the sound wave gathering degree can be improved without the help of a mechanical device under the condition of miniaturization through a plurality of groups of sound production units formed by an array, the sound wave is reinforced in a relatively long distance, and meanwhile, due to good energy gathering performance, the fire extinguisher can be used for fire extinguishing. And meanwhile, the effective acting distance of sound waves formed by array sound production is long, and the safety of a fire extinguisher operator can be further protected.

Description

TECHNICAL FIELD

[0001] The utility model belongs to indoor fire extinguishing equipment, concretely relates to a sound wave reinforced fire extinguisher based on the principle of phased array. BACKGROUND

[0002] Indoor fire emergency refers to a process of taking a series of emergency measures to protect personnel life safety, reduce property loss, and control and extinguish fire as far as possible under the condition of fire occurring in a building. Under the background of emergency and surveying and mapping remote sensing industry, a three-dimensional model of the building interior can be constructed through surveying and mapping technology. Before the fire occurs, detailed spatial information of the building interior is obtained by using laser scanning technology, including room layout, passage position, fire fighting facility distribution, etc. In this way, during the fire emergency, rescue personnel can more intuitively understand the building interior structure by checking the three-dimensional model, and make a more reasonable rescue and fire extinguishing plan, and based on the three-dimensional model, the rescue personnel can also control the fire extinguisher to independently extinguish the indoor fire.

[0003] The sound wave fire extinguisher is a new type of equipment for extinguishing fire by using the physical principle of sound wave. The sound wave belongs to pressure wave, and can produce a small air flow when propagating in the air, so as to remove oxygen from the area around the fire source, so that the combustion stops due to lack of combustion-supporting material. When the sound wave of a specific frequency acts on the air around the flame, the oxygen distribution becomes uneven, and the combustion cannot continue in the area with thin oxygen.

[0004] The sound wave fire extinguisher on the market has many deficiencies, for example, the sound wave aggregation performance is not good, and a large and bulky sound generating device is often needed, so it is not portable, and the effective distance is low, so that the operator's safety is threatened when using it close to the fire source.

[0005] Therefore, a sound wave reinforced fire extinguisher based on the principle of phased array is proposed to solve the above problems. UTILITY MODEL CONTENTS

[0006] In view of one or more of the above defects or improvement needs of the prior art, the utility model provides a sound wave reinforced fire extinguisher based on the principle of phased array, which has the advantages of more low-damage and green fire extinguishing efficiency compared with the traditional fire extinguisher, can effectively utilize the interference enhancement characteristics of longitudinal wave to improve the energy aggregation, enhance the fire extinguishing efficiency, and the overall device is more miniaturized.

[0007] To achieve the above purpose, the utility model provides a sound wave reinforced fire extinguisher based on the principle of phased array, which comprises a main body structure, and the main body structure is formed with a mounting cavity;

[0008] The front of the main body structure is equipped with a dust cover structure, a planar area is formed between the main body structure and the dust cover structure, and a plurality of sound emitting units are installed at the planar area;

[0009] The sound emitting units are arranged on the planar area in an array manner and form a phased array sound emitting system.

[0010] As a further improvement of the utility model, the sound emitting frequency of the sound emitting unit is variable; a laser is assembled on the main body structure, and the laser ray direction is consistent with the sound wave direction of the sound emitting unit.

[0011] As a further improvement of the utility model, an operation beam is assembled on the main body structure, and a control button is assembled on the operation beam.

[0012] As a further improvement of the utility model, a battery assembly is assembled in the main body structure, and the battery assembly is electrically connected with the display screen, the sound emitting unit and the computer control assembly in sequence through wires.

[0013] As a further improvement of the utility model, a computer control assembly is assembled in the main body structure, and the computer control assembly is electrically connected with the sound emitting unit through wires; a display screen is assembled on the main body structure, and the display screen is electrically connected with the computer control assembly.

[0014] Overall, compared with the prior art, the above technical scheme conceived by the utility model has the beneficial effects including:

[0015] The sound wave reinforced fire extinguisher based on the phased array principle can realize the improvement of the gathering degree of sound waves without the aid of mechanical devices under the condition of miniaturization, and the sound waves are enhanced at a long distance, and the energy gathering property is good, so that the fire extinguishing efficiency can be greatly enhanced, the effective action distance of the sound waves formed by the array sound emission is long, and the safety of the fire extinguisher operator can be further protected.

[0016] The sound wave reinforced fire extinguisher based on the phased array principle is light, small, green and energy-saving in actual use, and solves the defects of poor energy gathering property, short action distance and difficulty in miniaturization of the sound wave fire extinguisher on the market.

[0017] The sound wave reinforced fire extinguisher based on the phased array principle adds a laser on the main body structure, and the laser ray direction is consistent with the sound wave direction of the phased array sound emitting element, so that the problem of aiming difficulty at a long distance caused by invisible sound waves is solved, and the portability of the whole operation is improved. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is a side structure schematic view of the utility model;

[0019] Figure 2 It is a front structure schematic view of the utility model;

[0020] Figure 3 It is a top view structure schematic view of the utility model;

[0021] Figure 4 It is a side structure section schematic view of the utility model;

[0022] Figure 5 It is a sound wave coherence enhancement principle schematic view of the utility model.

[0023] In all the drawings, same reference signs represent same technical features, specifically: 1, operation crossbeam;2, dust cover structure;3, main body structure;4, control button;5, display screen;6, sound emitting unit;7, computer control assembly;8, battery assembly. DETAILED DESCRIPTION

[0024] The technical scheme in the embodiments of the utility model will be described clearly and completely below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0025] EMBODIMENT

[0026] By Figures 1-4 A sound wave enhancement type fire extinguisher based on the principle of phased array is given, which comprises a main body structure 3, the main body structure 3 is formed with a mounting cavity;

[0027] The dust cover structure 2 is assembled at the front of the main body structure 3, and the plane area is formed between the main body structure 3 and the dust cover structure 2, and a plurality of sound emitting units 6 are installed at the plane area.

[0028] The sound emitting units 6 are arranged on the plane area in an array manner and form a phased array sound emitting system.

[0029] In the embodiment, the plurality of groups of sound emitting units 6 formed by the array can realize the improvement of the gathering degree of sound waves without the aid of mechanical devices under the condition of miniaturization, and the sound waves are enhanced at a long distance, and at the same time, due to the good energy gathering property, the fire extinguishing efficiency can be greatly enhanced, and the effective action distance of the sound waves formed by the array sound emission is long, which can further protect the safety of the fire extinguisher operator.

[0030] Further, the fire extinguisher device of the present application is light and green, and solves the problems of poor energy concentration, short action distance and difficulty in miniaturization of the existing sound wave fire extinguisher.

[0031] In one possible embodiment, the array layout of the sound generating units 6 of the present application can be flexibly adjusted according to the shape and size of the fire site. For example, for a long and narrow passage fire, the sound generating units 6 can be arranged in a linear array so that the sound waves can be effectively propagated along the passage direction, enhancing the fire extinguishing coverage of the entire passage area. The array form can be changed and designed in advance according to the site requirements, and the sound generating units 6 can also be assembled on the main structure 3 in a quick-release form.

[0032] Specifically, referring to Figures 1-2 , the sound generating frequency of the sound generating units 6 is variable; the main structure 3 is provided with a laser, and the laser beam is directed in the same direction as the sound waves of the sound generating units 6.

[0033] In this embodiment, for different fires caused by different fuels, the combustion characteristics are different, and the required fire extinguishing frequency is also different. For example, solid fuel such as wood fire and liquid fuel such as gasoline fire, their flame structure and combustion reaction speed are different. The variable frequency sound generating unit 6 can be adjusted according to these differences. For wood fire with slow combustion speed and stable flame, a lower frequency sound wave can be used, which can better penetrate the flame and act on the combustion core area to interfere with the combustion reaction chain. For gasoline fire with rapid combustion and violent flame fluctuation, a higher frequency sound wave can be more effective, because the high frequency sound wave can quickly form a pressure wave around the flame to interfere with the oxygen supply.

[0034] Further, in the initial stage of the fire, the flame is small and the combustion is relatively stable. At this time, a lower frequency sound wave can be used for fire extinguishing. The lower frequency sound wave can gently isolate the oxygen around the flame without damaging the surrounding environment, and inhibit the combustion reaction. When the fire enters the development stage, the flame becomes large and the combustion becomes violent, and the frequency of the sound wave needs to be increased. The high frequency sound wave can generate a stronger pressure wave to quickly cut off the oxygen supply of the flame and more strongly interfere with the combustion reaction chain. In the decay stage of the fire, according to the residual situation of the flame, the frequency of the sound wave can be appropriately adjusted back to a lower frequency to ensure that the flame is completely extinguished.

[0035] It should be noted that the sound generating unit 6 is a mature structure, the power connection mode is a prior art, and the control circuit can be realized by simple programming of those skilled in the art, which belongs to the public knowledge in the art, and only the use is described, without modification, so the control mode and circuit connection are not described in detail.

[0036] Specifically, referring toFigure 4 The main structure 3 is provided with an operation beam 1, and the operation beam 1 is provided with a control button 4.

[0037] In the embodiment, the control button 4 can be installed through the operation beam 1.

[0038] Specifically, referring to Figure 4 The main structure 3 is internally provided with a battery assembly 8, and the battery assembly 8 is electrically connected with the display screen 5, the sound emitting unit 6 and the computer control assembly 7 in sequence through wires.

[0039] In the embodiment, in use, the user can turn on the battery assembly 8 by pressing the control button 4, so that the battery assembly 8 provides power for the display screen 5, the sound emitting unit 6 and the computer control assembly 7. Then the computer control assembly 7 can adjust the phase of the sound wave emitted by the sound emitting unit 6, and the sound emitting units 6 in the array can work cooperatively, by adjusting the frequency, phase and intensity of the sound wave of each sound emitting unit 6, the sound waves generated by them can interfere with each other. In some fire areas, the sound waves can be superimposed and enhanced, and higher sound pressure can be generated. The high sound pressure can more effectively isolate the oxygen around the flame, enhance the cooling effect and more strongly interfere with the combustion reaction chain. At the same time, through the action of the computer control assembly 7 and the array distribution of the sound emitting units 6, the computer control assembly 7 can be used to control each unit individually. In some complex fire scenes, such as multiple ignition points or the need to avoid some important equipment for fire extinguishing, by controlling the opening, closing and adjusting the parameters of specific sound emitting units 6, the sound waves can be accurately applied to the area that needs to be extinguished.

[0040] Further, the computer control assembly 7 is a prior art, which mainly includes a central processing unit, a storage unit, a data acquisition card and a communication module.

[0041] Specifically, referring to Figure 4 The main structure 3 is internally provided with a computer control assembly 7, and the computer control assembly 7 is electrically connected with the sound emitting unit 6 through wires; and the main structure 3 is provided with a display screen 5, and the display screen 5 is electrically connected with the computer control assembly 7.

[0042] In the embodiment, the display screen 5 can cooperate with the computer control assembly 7 to display the current frequency of the sound wave, the vibration intensity and the distance of the interference enhancement.

[0043] The sound wave strengthening type fire extinguisher based on the phased array principle of the utility model:

[0044] Because the longitudinal waves in the sound wave have interference enhancement properties. Taking two rows of longitudinal wave interference as an example, as shown in the embodiment Figure 5 The vibration direction of the two rows of longitudinal waves emitted by S1 and S2 is the wave meeting directionFigure 5 At the middle O point, the synthesis conforms to the parallelogram rule of vector sum, so the amplitude vector S of the synthesis is greater than the amplitude of each individual wave. In the present application, the computer control assembly 7 calculates and controls the phase of the sound waves emitted by each sound emitting unit 6 so that the interference vibration is enhanced at the target.

[0045] Since the sound wave is a mechanical wave of air density change, the air pressure at the target where the sound wave is enhanced changes dramatically, so the propagation of the sound wave in the flame will destroy the stability of the flame, affect the shape and propagation mode of the flame, the sound wave will change the pressure and flow rate of the combustion area periodically, also reduce the oxygen supply required for combustion, at the same time, the sound wave will generate vortex and forced airflow in the combustion area to reduce the temperature of the combustible material. Therefore, the sound wave can effectively destroy each component in the fire triangle to achieve the effect of extinguishing the fire.

[0046] In summary of the above principles, in actual use, the several groups of sound emitting units 6 formed by the array can improve the degree of sound wave concentration without the aid of mechanical devices under the condition of miniaturization, and enhance the sound wave at a long distance, so as to achieve the purpose of extinguishing the sound wave, at the same time, due to its good energy concentration, the extinguishing efficiency can be greatly enhanced, at the same time, the effective action distance of the sound wave formed by the array sound emission is long, which can further protect the safety of the operator of the fire extinguisher.

[0047] Although the embodiments of the present application have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and spirits of the present application, the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A sound wave intensifier fire extinguisher based on the principle of phased array, Characterized in that; The main body structure (3) is formed with a mounting cavity; The front of the main body structure (3) is equipped with a dust cover structure (2), and a planar area is formed between the main body structure (3) and the dust cover structure (2), and a plurality of sound emitting units (6) are mounted at the planar area; The sound emitting units (6) are arranged on the planar area in an array manner and form a phased array sound emitting system.

2. The sound wave intensifier fire extinguisher based on the phased array principle according to claim 1, characterized in that, The sound emitting frequency of the sound emitting unit (6) is variable; a laser is mounted on the main body structure (3), and the laser beam points in the same direction as the sound wave of the sound emitting unit (6).

3. The sound wave intensifier fire extinguisher based on the phased array principle according to claim 1, characterized in that, An operation beam (1) is mounted on the main body structure (3), and a control button (4) is mounted on the operation beam (1).

4. The sound wave intensifier fire extinguisher based on the phased array principle according to claim 1, characterized in that, A battery assembly (8) is mounted inside the main body structure (3), and the battery assembly (8) is electrically connected to the display screen (5), the sound emitting unit (6) and the computer control assembly (7) in sequence through wires.

5. The sound wave intensifier fire extinguisher based on the phased array principle according to claim 1, characterized in that, A computer control assembly (7) is mounted inside the main body structure (3), and the computer control assembly (7) is electrically connected to the sound emitting unit (6) through wires; a display screen (5) is mounted on the main body structure (3), and the display screen (5) is electrically connected to the computer control assembly (7).

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