Large-flow micron-sized superfine water mist preparation device

Abstract

The invention provides a large-flow micron-sized superfine water mist preparation device which comprises a preparation box provided with an atomization cavity, an atomization plate provided with a plurality of atomization pieces is arranged in the atomization box, and water supplementing micropores are formed in the atomization box; the water storage tank is arranged in the atomization cavity, the water storage tank and the atomization box are mutually independent, and the water storage tank is used for supplementing water into the atomization box through the water supplementing micropores; the non-contact flow guide mechanism is installed outside the preparation box and used for conducting air draft or air supply on the atomization box and conducting wind force guiding on water mist in the atomization box; the power supply mechanism is used for independently supplying power to the atomization plates; the central controller, the non-contact flow guide mechanism and the power supply mechanism are electrically connected with the power supply mechanism, and the central controller is used for adjusting the wind direction and the wind power of the non-contact flow guide mechanism and can also adjust the working number of the atomization pieces through the power supply mechanism. The large-flow micron-sized superfine water mist preparation device can prepare a large amount of water mist and is good in atomization uniformity.

Description

Technical Field

[0001] This invention belongs to the field of water mist fire extinguishing technology, and particularly relates to a high-flow-rate micron-level ultrafine water mist preparation device. Background Technology

[0002] Water mist can effectively extinguish flames through heat absorption and cooling, oxygen isolation and suffocation, and attenuation of heat radiation. At the same time, water mist fire extinguishing systems have low water consumption, good insulation, and are friendly to people and the environment. As a new alternative technology, water mist fire extinguishing has shown very superior characteristics and has attracted widespread attention from the international fire protection community.

[0003] Currently, commonly used water mist fire extinguishing systems generally produce water mist particles with a diameter in the range of 20μm-200μm, and are called "fine water mist" fire extinguishing devices. Most of these types of water mist fire extinguishing systems have limitations, such as: large-diameter droplets are not easy to contact flames in complex areas or behind obstacles, resulting in low fire extinguishing efficiency; large-diameter water mist is very easy to accumulate on protected objects to form water flow, which can damage equipment.

[0004] However, when the particle size is less than 10μm, the droplets become "ultrafine water mist." Ultrafine water mist differs from ordinary water mist in that it possesses extremely high aerosol stability, allowing the droplets to remain in the air for a longer period, preventing reignition. Secondly, due to its microfluidic properties, ultrafine water mist can easily overcome obstacles, corners, and other complex areas to reach the flame zone, where it is attracted by the flames, achieving rapid heat absorption and efficient fire extinguishing. Because ultrafine water mist evaporates quickly, it does not wet equipment, allowing electronic devices to continue operating without damage from water. The fire extinguishing mechanism differs significantly from that of conventional fine water mist.

[0005] However, there is currently a lack of high-flow-rate ultrafine water mist preparation devices on the market, which limits the promotion and application of ultrafine water mist in the field of fire fighting. Existing ultrafine water mist preparation devices cannot produce large-flow-rate water mist, and the atomization effect is poor. Summary of the Invention

[0006] The main objective of this invention is to propose a high-flow-rate micron-level ultrafine water mist preparation device, which aims to solve the technical problem that existing ultrafine water mist preparation devices cannot perform high-flow-rate preparation and have good atomization effect.

[0007] To achieve the above objectives, the present invention provides a high-flow-rate micron-level ultrafine water mist preparation device, comprising: a preparation chamber with an atomizing cavity; an atomizing box, wherein multiple atomizing boxes are arranged vertically within the atomizing cavity, each atomizing box having an atomizing plate with multiple atomizing discs, and the atomizing box having water replenishment micropores; and a water storage tank, disposed within the atomizing cavity and independent of the atomizing box, the water storage tank being used to supply water to the atomizing cavity through the water replenishment micropores. The system includes: water replenishment inside the chamber; a non-contact airflow guiding mechanism installed outside the preparation chamber, used to exhaust or supply air to the atomizing chamber and guide the water mist inside the atomizing chamber; a power supply mechanism for individually powering multiple atomizing plates; and a central controller, which is electrically connected to both the non-contact airflow guiding mechanism and the power supply mechanism, used to adjust the airflow direction and force of the non-contact airflow guiding mechanism, and can also adjust the number of atomizing plates in operation through the power supply mechanism.

[0008] In this embodiment of the invention, a water mist gathering chamber is provided between the atomizing box and the water storage tank. The preparation box is provided with multiple gathering branches that are connected to the atomizing box. The water mist in the atomizing box can enter the water mist gathering chamber through the gathering branches. The air outlet of the non-contact flow guiding mechanism is connected to the water mist gathering chamber, and the water mist gathering chamber is provided with a mist outlet for spraying water mist to the outside.

[0009] In this embodiment of the invention, the non-contact flow guiding mechanism includes: a flow guiding shell having a communicating air outlet cavity and an acceleration cavity; a fan installed in the air outlet cavity; the acceleration cavity being connected to the mist outlet end of the water mist gathering cavity; the fan being used to blow air into the acceleration cavity through the air outlet cavity; and the acceleration cavity being used to accelerate the airflow, so that the mist outlet end of the water mist gathering cavity forms a low pressure relative to the inlet of the water mist gathering cavity.

[0010] In this embodiment of the invention, an acceleration gap is provided between the acceleration chamber and the water mist gathering chamber, and the cross-section of the acceleration gap gradually decreases from the acceleration chamber toward the water mist gathering chamber.

[0011] In this embodiment of the invention, the high-flow-rate micron-level ultrafine water mist preparation device further includes: a water supply pipe connected to the atomizing box; a water pump connected to the water supply pipe for drawing water from the water storage tank into the water supply pipe; and a liquid level detector disposed in the atomizing box for detecting the liquid level in the atomizing box. The liquid level detector and the water pump are both connected to the central controller, which is used to turn the water pump on or off according to the liquid level signal from the liquid level detector.

[0012] In this embodiment of the invention, the high-flow-rate micron-level ultrafine water mist preparation device further includes: a water suction pipe, a plurality of water supply pipes connected in parallel to the water suction pipe, one end of the water suction pipe being connected to the water storage tank; and a water return pipe, the other end of the water suction pipe being connected to the inlet of the water return pipe through an elastic locking structure, the outlet of the water return pipe being connected to the water storage tank.

[0013] In this embodiment of the invention, each water supply pipe is equipped with a solenoid valve electrically connected to the central controller. The central controller is used to open or close the solenoid valve according to the liquid level signal of the liquid level detector.

[0014] In this embodiment of the invention, the atomizing box is disposed in a hollow interlayer, the water supply pipe is connected to the hollow interlayer, and the water in the hollow interlayer can enter the atomizing box through the water supply micropores.

[0015] In this embodiment of the invention, the atomizing chamber includes multiple sub-cavities. Any two adjacent sub-cavities are separated by an isolation plate. Each sub-cavity is provided with an atomizing plate. A sub-converging cavity is formed between the atomizing plate and the isolation plate. One end of the sub-converging cavity is provided with a mist outlet, and the other end is connected to the non-contact flow guiding mechanism through an air duct main.

[0016] In an embodiment of the present invention, the plurality of atomizing boxes include a first box and a second box. The first end of the first box is connected to the preparation box. An air passage gap is provided between the second end of the second box and the preparation box. The second end of the second box is connected to the preparation box, and the first box and the second box are arranged alternately in the vertical direction.

[0017] Through the above technical solutions, the high-flow-rate micron-level ultrafine water mist preparation device provided in the embodiments of the present invention has the following beneficial effects:

[0018] This high-flow-rate, micron-level ultrafine water mist preparation device employs a multi-layered atomizing plate layout within a confined space. Compared to mainstream atomizers, it can generate several times more ultrafine water mist within the same volume. A circulating airflow mode efficiently extracts the ultrafine water mist generated inside the preparation chamber. The central controller, by controlling the number of atomizing plates and coordinating with the airflow direction and force of the non-contact airflow guide mechanism, allows for stepless adjustment of the ultrafine water mist atomization volume. Furthermore, the non-contact driving airflow effectively moves the water mist throughout the entire preparation chamber without causing droplet breakage or aggregation, resulting in better droplet uniformity at the outlet. Evenly distributed water replenishment micropores inside the atomizing chamber ensure that water replenishment does not affect the fluid distribution within the water tank, resulting in consistent water mist atomization.

[0019] Other features and advantages of the present invention will be described in detail in the following detailed description section. Attached Figure Description

[0020] The accompanying drawings are provided to illustrate the invention and form part of the specification. They are used together with the following detailed description to explain the invention, but do not constitute a limitation thereof. In the drawings:

[0021] Figure 1 This is a schematic diagram of the structure of a high-flow-rate micron-level ultrafine water mist preparation device according to an embodiment of the present invention;

[0022] Figure 2 This is a partial structural schematic diagram of a high-flow-rate micron-level ultrafine water mist preparation device according to an embodiment of the present invention;

[0023] Figure 3 This is a cross-sectional structural diagram of a non-contact flow guiding mechanism of a high-flow-rate micron-level ultrafine water mist preparation device according to an embodiment of the present invention;

[0024] Figure 4 This is a schematic diagram of another cross-sectional structure of the non-contact flow guiding mechanism of a high-flow-rate micron-level ultrafine water mist preparation device according to an embodiment of the present invention;

[0025] Figure 5 This is a schematic diagram of the structure of a high-flow-rate micron-level ultrafine water mist preparation device according to another embodiment of the present invention;

[0026] Figure 6 This is a partial structural schematic diagram of a high-flow-rate micron-level ultrafine water mist preparation device according to an embodiment of the present invention;

[0027] Figure 7 This is a schematic diagram of the atomizing box part of a high-flow-rate micron-level ultrafine water mist preparation device according to an embodiment of the present invention;

[0028] Figure 8 This is a schematic diagram of the preparation box structure of a high-flow-rate micron-level ultrafine water mist preparation device according to another embodiment of the present invention;

[0029] Figure 9 This is a schematic diagram of the return water pipe structure of a high-flow-rate micron-level ultrafine water mist preparation device according to another embodiment of the present invention.

[0030] Explanation of reference numerals in the attached figures

[0031] Detailed Implementation

[0032] The specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.

[0033] The apparatus for preparing high-flow-rate micron-level ultrafine water mist according to the present invention is described below with reference to the accompanying drawings.

[0034] like Figures 1 to 8 As shown, in an embodiment of the present invention, the high-flow-rate micron-level ultrafine water mist preparation device 100 includes a preparation box 1, an atomizing box 2, a water storage tank 20, a non-contact flow guiding mechanism 3, a power supply mechanism, and a central controller 4. The preparation box 1 is provided with an atomizing chamber 11; multiple atomizing boxes 2 are arranged vertically in the atomizing chamber 11, and each atomizing box 2 is provided with an atomizing plate 21 with multiple atomizing discs. Water replenishment micropores 22 are provided on the atomizing box 2; the water storage tank 20 is disposed within the atomizing chamber 11 and is independent of the atomizing box 2. The water tank 20 is used to replenish water into the atomizing box 2 through the water replenishment micro-holes 22; the non-contact flow guiding mechanism 3 is installed outside the preparation box 1, and the non-contact flow guiding mechanism 3 is used to exhaust or supply air to the atomizing box 2, and to guide the water mist in the atomizing box 2 by wind force; the power supply mechanism is used to supply power to multiple atomizing plates 21 individually; the non-contact flow guiding mechanism 3 and the power supply mechanism are both electrically connected to the power supply mechanism, and the central controller 4 is used to adjust the wind direction and wind force of the non-contact flow guiding mechanism 3, and can also adjust the number of working atomizing plates through the power supply mechanism.

[0035] Multiple atomizing boxes 2 can be arranged vertically within the atomizing chamber 11. A water storage tank 20 can be located at the bottom of the preparation box 1. The atomizing boxes 2 are fixed to the atomizing chamber 11 by welding. A certain gap is maintained between the atomizing boxes 2 and the atomizing chamber 11. In one embodiment, as... Figure 2 As shown, the atomizing box 2 is fixed by a support frame 10, the shape of which is not limited, but preferably cross-shaped. The shapes of the atomizing box 2 and the atomizing chamber 11 are not limited, but preferably square. The support frame 10 is fixed on the atomizing chamber 11, and the atomizing plates are evenly distributed at the bottom of the atomizing box 2. Multiple atomizing plates are combined into a group of atomizing plates 21, and each atomizing plate 21 is powered independently. The central controller 4 can adjust the wind force and direction of the non-contact air guiding mechanism 3, and can guide the air by suction and delivery. The central controller 4 can also adjust the number of working atomizing plates 21 through the power supply mechanism. Specifically, according to the usage requirements, some atomizing plates 21 can be powered, and the power to the remaining atomizing plates 21 can be cut off.

[0036] The high-flow-rate micron-level ultrafine water mist preparation device 100 in this embodiment employs a multi-layered atomizing plate layout within a confined space. Compared to mainstream atomizers, it can generate several times more ultrafine water mist within the same volume. A circulating airflow mode efficiently extracts the ultrafine water mist generated inside the preparation chamber 1. The central controller 4, by controlling the number of atomizing plates and coordinating with the wind force and direction of the non-contact airflow guiding mechanism 3, can achieve stepless adjustment of the ultrafine water mist atomization volume. Furthermore, the non-contact driving airflow can fully mobilize the water mist throughout the entire space of the preparation chamber 1 without causing droplet breakage and aggregation, resulting in better droplet uniformity at the outlet. The evenly distributed water replenishment micropores 22 inside the atomizing chamber 2 ensure that water replenishment does not affect the distribution of fluid inside the water tank, resulting in good consistency in water mist atomization. It can be widely used in fire extinguishing and active explosion suppression in confined spaces, especially in complex areas.

[0037] The atomizing plate 21, located at the bottom of the atomizing chamber 2, begins operation after being powered on. Under the action of a high-frequency oscillating voltage, the piezoelectric ceramic sheet in the atomizing plate 21 generates high-frequency resonance. The ultrasonic waves generated by the piezoelectric ceramic cause the liquid surface to vibrate at high frequency, creating a water jet. When the amplitude of the vibrating surface reaches a critical value, the droplets detach from the top of the water jet, forming an ultrafine water mist. The preferred oscillation frequency of the high-frequency oscillation voltage is 2.4MHz. Under the driving force generated by the vibration of the liquid surface, the ultrafine water mist disperses in all directions and diffuses evenly throughout the entire atomizing chamber 11 under its own gravity and drag force. The atomizing plate 21 is powered independently, and the power supply line of the corresponding atomizing plate 21 can be connected according to the atomization volume requirements.

[0038] In one embodiment, the atomizing plates of the atomizing plate 21 can be powered individually. Each atomizing box 2 contains N atomizing plates, and the required atomization volume corresponds to M connected atomizing plates. When M < N, it is preferable to only activate the M atomizing plates in the lowest atomizing box 2. A liquid level detector is installed on the inner wall of the atomizing box 2. The liquid level detector can replenish water in a timely manner according to the water level in the atomizing box 2, ensuring that the water volume in the atomizing box 2 is always maintained within a certain range, at which point the atomizing plates operate at their optimal efficiency.

[0039] In another embodiment, the non-contact guiding mechanism 3 is a fan 32, which is installed at one end of the water mist gathering chamber 12. The wind generated by the fan 32 drives the ultrafine water mist in the water mist gathering chamber 12 to move to the other end of the water mist gathering chamber 12. Due to the action of the fan 32, a negative pressure is formed in the water mist gathering chamber 12. The ultrafine water mist dispersed in the atomizing chamber 11 moves to the water mist gathering chamber 12 under the action of gravity and attraction, and is then carried to the other side of the water mist gathering chamber 12 by the wind generated by the fan 32. The fan 32 is preferably adjustable in wind power. The water in the water storage tank 20 and the atomizing box 2 is pure water, which can reduce the adhesion of impurities such as scale, which affects the atomization efficiency of ultrafine water mist. Using the fan 32 to provide wind power in the air supply mode can avoid water mist adsorbing on the fan blade surface and being thrown out by centrifugal force after accumulation. Water mist adsorbed on the fan blade surface affects the generation amount and particle size of ultrafine water mist, thus improving the uniformity of water mist transmission.

[0040] In one embodiment, a water mist gathering chamber 12 is provided between the atomizing box 2 and the water storage tank 20. The preparation box 1 is provided with multiple gathering branches 13 that are connected to the atomizing box 2. The water mist in the atomizing box 2 can enter the water mist gathering chamber 12 through the gathering branches 13. The air outlet of the non-contact flow guiding mechanism 3 is connected to the water mist gathering chamber 12, and the water mist gathering chamber 12 is provided with a mist outlet for spraying water mist to the outside.

[0041] In this embodiment, the water mist gathering chamber 12 is located in the middle of the preparation box 1, and the gathering branch 13 surrounds the outer periphery of the preparation box 1. The water mist prepared in the atomizing box 2 can be gathered into the water mist gathering chamber 12 through the gathering branch 13. All multi-layer atomizing boxes 2 discharge water mist to the outside through the water mist gathering chamber 12, which can realize the preparation of large flow rates of water mist. A first filter screen 17 can be provided between the water mist gathering chamber 12 and the gathering branch 13. The first filter screen 17 can be a rectifier grid, which can filter and rectify the flow.

[0042] like Figure 3 and Figure 4 As shown, the non-contact flow guiding mechanism 3 includes a flow guiding shell 31 and a fan 32. The flow guiding shell 31 is provided with a communicating air outlet chamber 311 and an acceleration chamber 312. The fan 32 is installed in the air outlet chamber 311, and the acceleration chamber 312 is connected to the mist outlet end of the water mist gathering chamber 12. The fan 32 is used to blow air into the acceleration chamber 312 through the air outlet chamber 311. The acceleration chamber 312 is used to accelerate the airflow, so that the mist outlet end of the water mist gathering chamber 12 forms a low pressure relative to the inlet of the water mist gathering chamber 12.

[0043] In this embodiment, the acceleration chamber 312 is arranged around the water mist gathering chamber 12, and the axis of the circular outlet of the water mist gathering chamber 12 is coaxial with the acceleration chamber 312. The fan 32 is fixed inside the air outlet chamber 311, with the fan blades of the fan 32 facing the acceleration chamber 312. A second filter screen 34 is installed at one end of the air outlet chamber 311 where the non-fan blade end of the fan 32 is located, serving as a fan filter to prevent impurities from entering. The fan 32 is preferably a centrifugal compressor. The acceleration chamber 312 is connected to the mist outlet of the water mist gathering chamber 12. The acceleration chamber 312 can accelerate the airflow. According to Bernoulli's equation, the higher the flow velocity, the lower the pressure. Therefore, the pressure at the outlet of the acceleration chamber 312 is low. Due to the high pressure inside the water mist gathering chamber 12, the mist outlet of the water mist gathering chamber 12 forms a low pressure relative to the inlet of the water mist gathering chamber 12. This causes the airflow to carry the ultrafine water mist from the high pressure area to the low pressure area. The ultrafine water mist will move from inside the water mist gathering chamber 12 to the outlet, thus realizing the transmission of the ultrafine water mist.

[0044] Specifically, an acceleration gap 33 is provided between the acceleration chamber 312 and the water mist gathering chamber 12, and the cross-section of the acceleration gap 33 gradually decreases from the acceleration chamber 312 towards the water mist gathering chamber 12. In this embodiment, there is a ring of acceleration gaps 33 inside the acceleration chamber 312. The air force generated by the fan 32 accumulates in the air outlet chamber 311, which is connected to the acceleration chamber 312, thus the air force accumulates in the acceleration chamber 312. Since the outlet area of ​​the acceleration gap 33 is relatively small compared to the acceleration chamber 312, a larger flow velocity is generated at the outlet position of the acceleration gap 33. In addition, the connection point with the outside can be set at the center of the top of the atomizing chamber 11. This creates a pressure gradient between the mist outlet of the water mist gathering chamber 12 and the connection point with the outside. Under the action of the pressure difference, the ultrafine water mist generated in the atomizing box 2 will be subjected to the drag force generated by the pressure difference, which can accelerate the movement of the ultrafine water mist towards the mist outlet of the water mist gathering chamber 12.

[0045] In one embodiment, the high-flow-rate micron-level ultrafine water mist preparation device 100 further includes a water supply pipe 5, a water pump 6, and a liquid level detector. The water supply pipe 5 is connected to the atomization box 2. The water pump 6 is connected to the water supply pipe 5 and is used to draw water from the water storage tank 20 into the water supply pipe 5. The liquid level detector is installed in the atomization box 2 and is used to detect the liquid level in the atomization box 2. The liquid level detector and the water pump 6 are both connected to the central controller 4. The central controller 4 is used to turn the water pump 6 on or off according to the liquid level signal from the liquid level detector.

[0046] Specifically, the atomizing box 2, the atomizing plate, and the liquid level detector are a set. Multiple sets can be installed vertically inside the atomizing chamber 11, preferably three sets. When the high-flow-rate micron-level ultrafine water mist preparation device 100 is started, the water pump 6 starts. The liquid level detector constantly monitors the water level in the atomizing box 2 and sends a signal to the central controller 4. The central controller 4 can turn the water pump 6 on or off according to the water level signal, and can adjust the water supply of the water pump 6 according to the water level to avoid over-supply or insufficient water.

[0047] like Figure 6 As shown, the high-flow-rate micron-level ultrafine water mist preparation device 100 also includes a water suction pipe 7 and a water return pipe 9. Multiple water supply pipes 5 are connected in parallel to the water suction pipe 7. One end of the water suction pipe 7 is connected to the water storage tank 20. The other end of the water suction pipe 7 is connected to the inlet of the water return pipe 9 through an elastic locking structure 8. The outlet of the water return pipe 9 is connected to the water storage tank 20.

[0048] In this embodiment, an elastic locking structure 8 is present at the outlet of the return water pipe 9. The spring force of the elastic locking structure 8 is lower than the outlet pressure of the water pump 6. Specifically, as shown in the figure... Figure 9 As shown, the return water pipe 9 is provided with a contraction section 91, and the elastic locking structure 8 includes a spring 82 and a plug ball 81. The plug ball 81 can be compressed or spring-loaded under water pressure, or can block or open the contraction section 91 under water pressure.

[0049] Both ends of the return water pipe 9 are directly connected to the water storage tank 20. If there is no resistance at the end, the water in the return water pipe 9 will basically flow back to the water storage tank 20, and water cannot be added to the atomizing box 2. After damping is set by the elastic locking structure 8, water is not easy to come out at the end. The water in the return water pipe 9 flows to the atomizing box 2 first. If the atomizing box 2 does not need water, the water accumulates in the return water pipe 9. When the pressure increases, the stopper 81 will open and flow back to the water storage tank 20, which can ensure that the water in the branch of the return water pipe 9 has enough pressure to be transmitted to the atomizing box 2.

[0050] In one embodiment, each water supply pipe 5 is equipped with a solenoid valve 51 electrically connected to a central controller 4. The central controller 4 is used to open or close the solenoid valve 51 according to the liquid level signal from the liquid level detector. Each water supply pipe 5 is equipped with a solenoid valve 51 for switching on and off. The solenoid valve 51 can open or close the water supply pipe 5. The central controller 4 can open or close each solenoid valve 51 according to the liquid level signal from the liquid level detector, and can replenish water in a timely manner according to the water level in the atomizing box 2, so as to ensure that the water volume in the atomizing box 2 is always kept within a certain range, and the working efficiency of the atomizing plate is optimal.

[0051] like Figure 7As shown, the atomizing box 2 is located in the hollow interlayer 23, and the water supply pipe 5 is connected to the hollow interlayer 23. The water in the hollow interlayer 23 can enter the atomizing box 2 through the water supply micropores. The wall surface with the water supply micropores is preferably the side wall surface of the atomizing box 2, which may include the area of ​​the bottom surface not occupied by the atomizing plate. The return water pipe 9 is not directly connected to the water storage area 24 inside the atomizing box 2, but is connected to the hollow interlayer 23 of the atomizing box 2. The water in the return water pipe 9 tends to be smooth under the buffering effect of the hollow interlayer 23. At the same time, the water flows from the hollow interlayer 23 to the water storage area 24 where the atomizing plate is located through the water replenishment micropores 22. Under the combined effect of the buffering effect and the water replenishment micropores 22, the water level of the water storage area 24 of the atomizing box 2 increases steadily without generating additional disturbances. The atomizing plate can work normally and has the highest working efficiency. At the same time, the water column fountain structure is stable without disturbance, and the water mist particle size has a high uniformity.

[0052] In one embodiment, such as Figure 5 As shown, the atomizing chamber 11 includes multiple chambers. Any two adjacent sub-chambers 111 are separated by a partition plate. Each sub-chamber 111 is provided with an atomizing plate 21. The atomizing plate 21 and the partition plate form a sub-converging chamber 15. One end of the sub-converging chamber 15 is provided with a mist outlet, and the other end is connected through the air pipe main 16 and the non-contact flow guiding mechanism 3.

[0053] In this embodiment, the atomizing chamber 11 is divided into multiple sub-cavities 111. The upper and side walls of the sub-cavities 111 are connected, and the isolation plate prevents the water mist from escaping upwards. The atomizing box 2 is fixed inside the sub-cavities 111 by the support frame 10. There is a gap between the bottom of the atomizing box 2 and the top surface of the lower sub-cavity 111, which forms the sub-converging cavity 15. There are pores between the side wall of the sub-cavity 111 and the lower sub-cavity 111. The pores are located at both ends of the sub-converging cavity 15. One end of the sub-converging cavity 15 is a mist outlet, and the other end is an air inlet. The air generated by the fan 32 is transmitted to each sub-converging cavity 15 through the branch of the air duct main 16. The mist outlets are finally converged on a branch and discharged through a single outlet, resulting in a large flow of ultrafine water mist. In this embodiment, the mist outlets can be arbitrarily combined to output ultrafine water mist to the outside. That is, assuming there are M mist outlets, the number of outlets discharging ultrafine water mist to the outside can be any number between 1 and M. The large mist outlet, where multiple mist outlets converge, is connected to the outside and is equipped with a first filter screen 17.

[0054] like Figure 8As shown, the multiple atomizing boxes 2 include a first box 2a and a second box 2b. The first end of the first box 2a is connected to the preparation box 1. An air passage gap 14 is provided between the second end of the second box 2b and the preparation box 1. The first box 2a and the second box 2b are staggered in the vertical direction. In this embodiment, the first box 2a and the second box 2b are staggered. The airflow supply method can be either blown air by the fan 32 or in suction mode by the fan 32. The airflow supply position can be the position indicated by the upper or lower arrow. Preferably, the airflow direction is from upper to lower, i.e. Figure 8 The arrows indicate the direction. The first box 2a and the second box 2b are vertically staggered, creating an S-shaped airflow that evenly sweeps across each atomizing box 2, resulting in more water mist being carried away. If only normally vertically distributed, the sides of the water tanks will experience a greater driving force, while the center will experience a smaller force, leading to uneven horizontal force on the ultrafine water mist. A larger driving force will carry out larger droplets from the sides, while a smaller force will prevent the water mist from being carried away from the center. The distance between the water surface of the atomizing box 2 and the top surface of the atomizing plate is 10mm-40mm, preferably 15mm-25mm. The high-flow-rate micron-level ultrafine water mist preparation device 100 in this embodiment is mainly used for ultrafine water mist with superior flowability and a particle size of less than 10μm. The atomizing plate 21 uses ultrasonic atomization, enabling high-flow-rate preparation and application in larger spaces.

[0055] In another embodiment, a coupling gas source is also provided. The coupling gas source and the water mist gathering cavity 12 can be connected by a quick connector. The coupling gas source can be an inert gas such as nitrogen or carbon dioxide. The coupling effect between the ultrafine water mist and the inert gas can further enhance the explosion-proof and explosion-suppressing performance of the ultrafine water mist.

[0056] In the description of this invention, it should be understood that the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0057] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to 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 invention according to the specific circumstances.

[0058] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0059] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A device for producing large flow micro-sized ultra-fine water mist, characterized in that, The high-flow-rate micron-level ultrafine water mist preparation device (100) includes: The preparation box (1) is equipped with an atomizing chamber (11); Atomizing box (2), multiple atomizing boxes (2) are arranged in the atomizing chamber (11) in a vertical direction. The atomizing box (2) is provided with an atomizing plate (21) with multiple atomizing plates. The atomizing box (2) is provided with water replenishment microholes (22). A water storage tank (20) is disposed in the atomizing chamber (11) and is independent of the atomizing box (2). The water storage tank (20) is used to replenish water to the atomizing box (2) through the water replenishment microhole (22). A non-contact flow guiding mechanism (3) is installed outside the preparation box (1). The non-contact flow guiding mechanism (3) is used to draw or blow air into the atomizing box (2) and to guide the water mist in the atomizing box (2) by wind. A power supply mechanism for individually supplying power to the multiple atomizing plates (21); The central controller (4) is electrically connected to the non-contact flow guiding mechanism (3) and the power supply mechanism. The central controller (4) is used to adjust the wind direction and wind force of the non-contact flow guiding mechanism (3), and can also adjust the working quantity of the atomizing plate through the power supply mechanism.

2. The large flow micro-sized ultra-fine water mist preparation device according to claim 1, characterized in that, A water mist gathering chamber (12) is provided between the atomizing box (2) and the water storage tank (20). The preparation box (1) is provided with multiple gathering branches (13) that are connected to the atomizing box (2). The water mist in the atomizing box (2) can enter the water mist gathering chamber (12) through the gathering branches (13). The air outlet of the non-contact flow guiding mechanism (3) is connected to the water mist gathering chamber (12), and the water mist gathering chamber (12) is provided with a mist outlet for spraying water mist to the outside.

3. The large flow micro-sized ultra-fine water mist generating device according to claim 2, characterized in that, The non-contact flow guiding mechanism (3) includes: The air guide shell (31) is provided with a connected air outlet chamber (311) and an acceleration chamber (312); A fan (32) is installed inside the air outlet cavity (311). The acceleration cavity (312) is connected to the mist outlet end of the water mist gathering cavity (12). The fan (32) is used to blow air into the acceleration cavity (312) through the air outlet cavity (311). The acceleration cavity (312) is used to accelerate the airflow so that the mist outlet end of the water mist gathering cavity (12) forms a low pressure relative to the inlet of the water mist gathering cavity (12).

4. The high-flow-rate micron-level ultrafine water mist preparation device according to claim 3, characterized in that, An acceleration gap (33) is provided between the acceleration chamber (312) and the water mist gathering chamber (12), and the cross-section of the acceleration gap (33) gradually decreases from the acceleration chamber (312) toward the water mist gathering chamber (12).

5. The high-flow-rate micron-level ultrafine water mist preparation device according to any one of claims 1 to 4, characterized in that, The high-flow-rate micron-level ultrafine water mist preparation device (100) also includes: Water supply pipe (5) is connected to the atomizing box (2); A water pump (6) is connected to the water supply pipe (5) and is used to pump water from the water storage tank (20) into the water supply pipe (5); A liquid level detector is installed inside the atomizing box (2) and is used to detect the liquid level inside the atomizing box (2). The liquid level detector and the water pump (6) are both connected to the central controller (4). The central controller (4) is used to turn the water pump (6) on or off according to the liquid level signal of the liquid level detector.

6. The high-flow-rate micron-level ultrafine water mist preparation device according to claim 5, characterized in that, The high-flow-rate micron-level ultrafine water mist preparation device (100) also includes: A water suction pipe (7) is connected in parallel to a plurality of water supply pipes (5), and one end of the water suction pipe (7) is connected to the water storage tank (20). The other end of the water inlet pipe (7) is connected to the inlet of the water inlet pipe (9) through an elastic locking structure (8), and the outlet of the water inlet pipe (9) is connected to the water storage tank (20).

7. The high-flow-rate micron-level ultrafine water mist preparation device according to claim 5, characterized in that, Each water supply pipe (5) is equipped with a solenoid valve (51) electrically connected to the central controller (4). The central controller (4) is used to open or close the solenoid valve (51) according to the liquid level signal of the liquid level detector.

8. The high-flow-rate micron-level ultrafine water mist preparation device according to claim 5, characterized in that, The atomizing box (2) is located in the hollow interlayer (23), and the water supply pipe (5) is connected to the hollow interlayer (23). The water in the hollow interlayer (23) can enter the atomizing box (2) through the water supply micropores.

9. The high-flow-rate micron-level ultrafine water mist preparation device according to any one of claims 1 to 4, characterized in that, The atomizing chamber (11) includes multiple sub-cavities (111). Any two adjacent sub-cavities (111) are separated by a partition plate. Each sub-cavity (111) is provided with an atomizing plate (21). A sub-converging cavity (15) is formed between the atomizing plate (21) and the partition plate. One end of the sub-converging cavity (15) is provided with a mist outlet, and the other end is connected to the non-contact flow guiding mechanism (3) through the air pipe main (16).

10. The high-flow-rate micron-level ultrafine water mist preparation device according to any one of claims 1 to 4, characterized in that, The plurality of atomizing boxes (2) include a first box (2a) and a second box (2b). The first end of the first box (2a) is connected to the preparation box (1). An air passage gap (14) is provided between the second end of the second box (2b) and the preparation box (1). The second end of the second box (2b) is connected to the preparation box (1). The first box (2a) and the second box (2b) are arranged alternately in the vertical direction.

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